HX64054152 R D32 B47 1 908 A text-book of opera Columbia (Mntt)ertfft|) / 00 8 mtljeCttpoOtatigork Cop. I College of $f)pjstciang anb burgeons Htbrarp GIFT OF DR. JOHN B.WALKER Digitized by the Internet Archive in 2010 with funding from Open Knowledge Commons (for the Medical Heritage Library project) http://www.archive.org/details/textbookofoperat1908bick A TEXT-BOOK OF Operative Surgery COVERING THE SURGICAL ANATOMY AND OPERATIVE TECHNIC INVOLVED IN THE OPERATIONS OF GENERAL SURGERY DESIGNED FOR PRACTITIONERS AND STUDENTS BY WARREN STONE BICKHAM, M. D., Phar. M. Junior Surgeon, Touro Hospital. New Orleans ; late Surgeon to Manhattan State Hospital, New York; late Assistant Instructor in Operative Surgery, College of Physicians and Surgeons (Columbia University), New York ; late Instructor in Surgery, New York Post-Graduate Medical School and Hospital; late Instructor in Surgery, New York Polyclinic Medical School and Hospital ; late Yisiting Surgeon to Charity Hospital, New Orleans ; late Demonstrator of Operative Surgery, Medical Department, Tulane University of Louisiana, New Orleans ; Fellow of the New York Academy of Medicine, etc. THIRD EDITION, GREATLY ENLARGED CONTAINING 854 ILLUSTRATIONS PHILADELPHIA AND LONDON W. B. SAUNDERS COMPANY 1 908 Set up, electrotyped, printed, and copyrighted August, 1903 Revised, reprinted, and recopyrighted April, 1904. Reprinted February, 1905, February, 1906, and September, 1906. Revised, reprinted, and recopyrighted September, 1908. Copyright, 1908, by W. B. Saunders Company. !ESS O F M O E RS COMP* IN REVERED MEMORY OF MY FATHER Cbarles Jasper 36icfebam WHOSE DAILY LIFE EMBODIED THE HIGHEST IDEALS OF CHRISTIAN PHYSICIAN, I LOVINGLY DEDICATE THIS WORK PREFACE TO THIRD EDITION. The scope of the alterations in this edition of the present work is suffi- ciently shown by the additions and omissions here indicated. The last edition of this work contained 984 pages, including 559 illustra- tions. The present edition contains 1204 pages, including 854 illustrations. In the new edition the following changes have been made from the old: 29 pages of text, covering 25 operations, have been dropped; 123 pages of text, descriptive of 106 operations, have been added; 42 old pictures have been omitted; 45 old pictures have been redrawn; and 331 new pictures have been added. The Author especially desires to express his appreciation of the kindly reception of his efforts by the Profession — Surgical and Medical — as evi- denced by the demand for additional editions, and trusts that the recent changes and additions in the writings and illustrations will materially add to the general usefulness of the work. Deep gratitude is due the author's Wife for her constant aid throughout the work, and for her unfaltering encouragement during the many days of its preparation. The writer wishes to testify his sincere appreciation of the continuous and substantial aid given him by Mrs. Farnsworth, his Assistant, in the general work of revision, and especially in the drawing of considerably the larger number of the new pictures. Thanks are again extended to Miss Fry for those illustrations made by her. The liberality of the Publishers in arranging the details of the revision and the excellence of its execution are fully acknowledged. Finally, the writer desires to express his earnest esteem of the many valuable intellectual opportunities, and of the large practical contact with surgical work, resulting from the close professional and friendlv associate- ship with Professor Rudolph Matas, whose general surgical knowledge, marvelous in its extent and detail, is most probably not exceeded by that of any Surgeon living. W. S. B. New Orleans, September, 1908. 3521 Prytania Street. PREFACE TO THE FIRST EDITION. The sub-title of the present volume sufficiently designates its intended scope — "The Surgical Anatomy and Operative Technic involved in the Operations of General Surgery." The work is planned to be a presentation to the Student and Practitioner of the best technic of modern Surgeons in the operations mentioned — accompanied by a brief summary of the descrip- tive and surgical anatomy of the structures involved. The clinical aspect of Operative Surgery has been less fully dealt with — and in generalizations in connection with groups of operations, rather than specifically in connection with individual operations. An apology for the amount of Anatomy given may seem, to some, neces- sary. From the standpoint of the pure technician, Operative Surgery is, largely, Applied Anatomy — the application of the facts of Surgical Anatomy during the progress of Surgical Manipulations — the resulting Operative Technic being more or less perfect as the knowledge of the Surgical Anatomy and the conduction of the Surgical Manipulations are more or less perfect. Theoretically, it is proper to expect fourth-year Students to come into the Operating Room with their Anatomy in an available form for surgical work — practically, this is rarely found — and is often absent in seasoned Operators. In the arrangement of this work the subjects have been grouped under, The Operations of General Surgery (Part I), and, The Operations of Special Surgery (Part II) — as further detailed in the especially full Contents. In dealing with each group of tissues, or class of operations (in Part I), or with each organ (in Part II), the following divisions of the subjects are taken up, in order:— (i) Surgical Anatomy (of the region or organ); (2) Surface Form and Landmarks; (3) General Surgical Considerations (in operating upon that region or organ) ; (4) Instruments (used in such operations) — all being introductory to the specific operations, — after which each operation is taken up in turn, under the following headings: — (1) Title of Operation; (2) De- scription of Operation (including its general indications); (3) Preparation of Patient; (4) Position of Patient, Surgeon, and Assistant; (5) Landmarks of Operation; (6) Incision for Operation; (7) Steps of Operation; (8) Com- ments. In the description of the technic of the operations the "Incision" is given a heading to itself — to emphasize the importance of this step of the operation — recognizing that the Operator who starts out aright is a long way ahead of the man who takes his initial step erroneously. Under "Operation" the various steps are given in numbered paragraphs — the different paragraphs usually indicating, in a general way, some change in the technic or in the stage of the operation. The Principles of Operative Surgery, and Anesthesia, as well as the Operations of Plastic Surgery, many of the operations more properly classed as the operations of Special Branches of Surgery, and some of the many variations of the operations of General Surgery, have been omitted. 2 PREFACE. In the preparation of these pages, obligations are hereby gratefully and fully acknowledged to the writings of many well-known Surgeons in the standard works of the day upon Operative Surgery, and in the current surgical literature, whose pages have been freely consulted — and to the work of many Surgeons, here and abroad, whose operative technic it has been the privilege of the author to witness — and to writings upon Anatomy. The name of the deviser of an operation is given, in brackets, after the title of the operation, wherever known to the author. Where slight de- partures from the manner of doing the operation as performed by its originator occur, such omission is accidental — or, where the original description is ambiguous, the operation is given as it seems to be interpreted by the majority of Surgeons. Appreciation of encouragement shown during the preparation of the manuscript is gratefully acknowledged to Professors Bull, Dennis, Hal- sted, Hartley, Matas, Richardson, Senn, Weir, and Wyeth — and to my co-workers, Doctors Peck, Schmitt, and Taylor, in the Department of Op- erative Surgery at the College of Physicians and Surgeons — and to Doctor Gessner, my former co-worker in the Laboratory of Operative Surgery of Tulane University — and to Doctors Armstrong and LeBeuf — and to other friends whose kindly words have aided and lightened the work of preparation. The author feels deeply indebted to Miss Eleanora Fry, who has drawn, under his close directions, all the illustrations for the book, during many weeks of conscientious work and unflagging interest — the large majority of the five-hundred and fifty-nine illustrations being original, and the remainder so largely modified as to be, in many instances, practically new pictures. I wish to thank the Publishers for the courteous consideration they have shown my every expression of wish throughout — for their interest in the manuscript — and for the quality of their finished work. I desire to express my high valuation of my Wife's ever-ready and untiring aid in all the proof-readings of the manuscript during the many months of its preparation. The imperfections of the present work are very fully realized — and the author will be glad to receive all criticisms which may tend to the bettering of the text and illustrations. WARREN STONE BICKHAM. 10 East 58TH Street, New York City. CONTENTS. PART I. THE OPERATIONS OF GENERAL SURGERY. CHAPTER I. OPERATIONS UPON ARTERIES. I. Ligation of arteries — General considerations, 17. II. Surgical Anatomy and Ligation of following Arteries of Head and Neck:— Innominate, by angular incision (Mott's operation), 27 — By oblique incision, 30 — By partial bony resection (Bardenheuer's operation), 31 — By splitting of manubrium sterni, 31 — Common carotid, above omohyoid, 34 — Below omohyoid, 35 — External carotid, below digastric, 37 — Above digastric, behind ramus of jaw, 38 — Lingual, near origin, 39 — Beneath hyoglossus, 39 — Facial, near origin, 41 — Over inferior maxilla, 41 — Occipital, near origin, 42 — Behind mastoid process, 42 — Temporal, just above zygoma, 43 — Internal maxillary (surgical anatomy), 44 — Trunk of middle meningeal, in cranium, through trephine-opening exposed by curved oblique incision, 47 — Anterior branch of middle meningeal, through trephine-opening exposed by horseshoe incision, 48 — Posterior branch of middle meningeal, through trephine-opening exposed by horseshoe incision, 49 — Internal carotid, near origin, 50 — First part of right subclavian, by angular incision, 52 — First part of left subclavian, by angular incision, 52 — Second part of subclavian, 53 — Third part of subclavian, 53 — Vertebral, near origin, 55 — Inferior thyroid, 57. III. Surgical Anatomy and Ligation of following Arteries of Upper Extremity and Thorax: — Internal mammary, in second intercostal space, 58 — First part of axillary, by curved trans- verse incision below clavicle, 60 — Third part of axillary, 62 — Brachial, in mid-arm, 64 — At bend of elbow, 65 — Radial, in upper third, 69 — In lower third, 70 — Deep palmar arch, 72 — Ulnar, in middle third, 74 — In lower third, 76 — Intercostal, by intercostal incision, 76 — Inter- costal, by partial subperiosteal excision of rib (Hartley's method), 78. IV. Surgical Anatomy and Ligation of following Arteries of Trunk: — Abdominal aorta, by transperitoneal method, 79 — By retroperitoneal method, 80 — Common iliac, by retroperitoneal method, Si — By transperitoneal method, 83 — Internal iliac, by retroperitoneal method, 84 — By transperitoneal method, 84 — Sciatic, upon buttock, 84 — Internal pudic, upon buttock, 87 — In perineum, 87 — Gluteal, on buttock, 87 — External iliac, by retroperitoneal method, 89 — By transperitoneal method, 91. V. Surgical Anatomy and Ligation of following Arteries of Lower Extremity: — Common femoral, at base of Scarpa's triangle, 93 — Profunda femoris, near origin, 95 — Superficial femoral, at apex of Scarpa's triangle, 96 — In Hunter's canal, 98 — Popliteal, in upper part of popliteal space, from behind, 100 — In upper part of popliteal space, from inner side of thigh, Jobert's operation, 100 — In lower part of popliteal space, 10 1 — Anterior tibial, in upper third, 104 — In middle third, 105 — In lower third, 105 — Dorsalis pedis, just below ankle-joint, 107 — Pos- terior tibial, in upper third, above peroneal branch, 109 — In middle third, no — In lower third, 112 — Behind internal malleolus, 112 — Peroneal, in middle of leg, 114 — External plantar in sole of foot, 116 — Internal plantar, at origin, 117 — In sole of foot, 117. VI. Temporary ligation, 118 — Intermediate ligation, 118 — Arteriorrhaphy, 118 — Closure of wounds of larger arteries by special rubber plaster (Brewer's method), 124 — Aneurismor- rhaphy (Matas' method), 125 — Operation for the radical cure of anteriovenous aneurisms, with preservation of circulation in artery and vein (Matas-Bickham operation), 133 — Ligation for radical cure of aneurism, 139 — Other operations for radical cure of aneurism, 139 — Arterial forcipressure, 140 — Arteriostrepsis, 140 — YVyeth's treatment of vascular neoplasms, 14 r. 3 4 CONTENTS. CHAPTER IE OPERATIONS UPON VEINS. Phlebotomy, 142 — Phleborrhaphy, 142 — Lateral ligation of veins, 143 — Transverse liga- tion of veins, 144 -Temporary ligation of veins, 144 — Venous ligation en masse, 145 — Venous forcipressure, 145 — Phlebostrepsis, 145 — Acupressure of veins, 145 — Phlebectomy, 145 — - Intravenous infusion of normal salt solution, 140. CHAPTER III. OPERATIONS UPON LYMPHATIC GLANDS AND VESSELS. Surgical anatomy of thoracic duct, 148 — Suture of thoracic duct, 148 — Ligation of thoracic duct, 149 — Surgical anatomy of antero-lateral aspect of neck, 149 — Removal of lymphatic glands of neck, 151 — Surgical anatomy of axillary region, 154 — Removal of axillary lymphatic glands, 155 — Surgical anatomy of Scarpa's triangle, 155 — Removal of inguinal lymphatic glands, 156. CHAPTER IV. OPERATIONS UPON NERVES, PLEXUSES, AND GANGLIA. I. Neurotomy, 157 — Neurectomy, 158 — Neurectasy, 158 — Nerve-avulsion, 159— Neurorrhaphy, 160 — Neuroplasty, 163 — Nerve-grafting, 165 — Neurolysis, or an operation for relief of nerve-compression, 169 — Intraneural infiltration for regional anesthesia (operation of Matas and Crile), 169 — Paraneural infiltration for regional anesthesia (Matas' method), 171 — Massive infiltration anesthesia with weak analgesic solutions (Matas' modification of Schleich's method), 172. II. Surgical Anatomy and Exposure of following Nerves and Ganglia of Head and Neck: — Gasserian ganglion and three divisions of fifth, by direct infra-arterial (Cushing's method), 175 — Same, by intracranial exposure (Hartley-Krause method), 177 — Same, by trephining through pterygomaxillary fossa (Rose's method), 181 — Supraorbital, at supraorbital foramen, 182 — Exposure of superior maxillary nerve at foramen rotundum by osteoplasic resection of malar and adjacent bones (Kocher's operation), 183 — Meckel's ganglion and superior maxillary, by antral route (Carnochan's operation), 185 — Same, by orbital route, 186 — Same, by pterygo- maxillary route (Braun-Loessen operation), 1S6 — Exposure of inferior maxillary nerve at foramen ovale by osteoplastic resection of malozygomatic arch (Kocher's operation), 188 — Inferior maxill- ary, at foramen ovale, 190; or superior maxillary, at foramen rotundum (Mixter's operation), 190 — Inferior dental, in mouth (Paravicini's intrabuccal method), 191 — Through ascending ramus of inferior maxilla, 192 — At mental foramen, from within mouth, 193 — Lingual (gustatory) of inferior maxillary, in mouth, 194 — Facial, in front of mastoid process (Baum's operation), 195 — Spinal accessory, at anterior border of sternomastoid, 195 — Facio-accessory or facio-hypoglossal anastomosis for peripheral facial paralysis, 196 — Posterior divisions of first, second, and third cervical nerves (Keen's operation), 197 — Brachial plexus, in neck, 198 — Operation for brachial birth palsy, 199. III. Surgical Anatomy and Exposure of following Nerves of Upper Extremity and Thorax: — Median, in middle of arm, 201 — At bend of elbow, 202 — Ulnar, above middle of arm : 202 — Just above internal condyle of humerus, 203 — Musculospiral, below middle of arm, 203 — Intercostal, between angle and middle of rib, 204. IV. Surgical Anatomy and Exposure of following Nerves of Lower Extremity: — Anterior crural, below Poupart's ligament, 205 — Obturator, at thyroid foramen, 205 — Superior gluteal, upon buttock, 205 — Pudic, upon buttock, 205 — Great sciatic, at lower border of gluteus maximus, 206 — Internal popliteal, at lower part of popliteal space, 206 — Posterior tibial, between origin and ankle, 207 — Behind internal malleolus, 207 — External popliteal (peroneal), behind tendon of biceps, 207 — Anterior tibial, near origin, 208. V. Surgical Anatomy of Cervical Sympathetic Ganglia and Cord, 208 — Total excision of cervical sympathetic ganglia and cord (Jonnesco's operation), 209. CHAPTER V. OPERATIONS UPON BONES. Osteotomy in general, 210— Linear osteotomy, by subcutaneous method, 211— Linear osteotomy, by open method, 213 — Cuneiform osteotomy, 214— The operative treatment of fractures in general, 214— Operations for recent or ununited fractures, by resection of ends CONTENTS. 5 of bones, with retention of coaptated ends by immobilizing splints, 215 — Same, by suturing of ends of bones, with or without resection, 217 — Other operative methods of approximating and fixing ends of fractured bones, 221 — Operative treatment of simple fractures, 225 — Bone- grafting or bone-implantation, 227 — Operations for delayed union, non-union, and mal-union of fractures, 228 — Operative treatment of compound, comminuted, and complicated fractures, 230 — Operative treatment of fractures involving joints and of fracture dislocations, 231 — Operative treatment of separated epiphyses, 232 — Operation for recent or ununited fracture of patella, by suturing soft parts (Stimson's method), 233 — Same, by wiring or suturing of bone and soft parts, 234 — Same, by an encircling suture of soft parts, 236 — Operation for recent or ununited fracture of olecranon, by wiring or suturing of bone and soft parts, 238 — Seques- trotomy, 239 — Osteoplasty, 240 — Excision, 240. CHAPTER VI. OPERATIONS UPON JOINTS. Exploratory puncture of joints, 241 — Arthrotomy, 241 — Arthroplasty, 241 — Arthrodesis, 242 — Erasion, or arthrectomy, 242 — Operation for dislocated semilunar cartilages, 244 — Excision, 244. CHAPTER VII. OPERATIONS UPON MUSCLES. Myotomy, 245 — Myorrhaphy, 245 — Muscle-lengthening, 246. CHAPTER VIII. OPERATIONS UPON TENDONS AND TENDON-SHEATHS. Tenotomy, 249 — Tenorrhaphy, 251 — Tendon-lengthening, 254 — Tendon-shortening, 259 — Tendon-grafting, 261 — Operation for uniting tendon to periosteum (Lange's method), 263 — ■ Operation for uniting tendon to bone (Wolff's method), 264 — Transplantation of tendon with its osseous insertion, 265 — Repair of ruptured or divided tendon-sheaths, 265 — Excision of tendon-sheaths, 267. CHAPTER IX. OPERATIONS UPON LIGAMENTS. Syndesmotomy, 267 — Suturing of ligaments, 267 — Lengthening of ligaments, 267 — Shorten- ing of ligaments, 267. CHAPTER X. OPERATIONS UPON FASCIAE. Fasciotomy or aponeurotomy, 269 CHAPTER XI. OPERATIONS UPON BURS^E. Puncture of bursas, 270 — Incision of bursa?, 270 — Excision of bursa?, 270. CHAPTER XII. AMPUTATIONS AND DISARTICULATIONS. I. General considerations, 271 — The general technic in amputating, 274 — Location of line of bone-section, or disarticulation, 274 — Location of limits of skin incisions, 275 — Incision of skin and fascia, 276 — Freeing of skin and fascia, 279 — Retraction of skin and fascia, 2S0 — Division of muscles in circular methods of amputation, 2S1 — Division of muscles in flap methods of amputation, 284 — Freeing and retracting of muscles, 2S8 — Making musculo-periostcal, or 6 CONTENTS. periosteo-capsular, covering for end of bone, 289 — Retraction of soft parts preparatory to sawing bone, 292 — Sawing bone or bones, 292 — Removing splintered bone, 294 — Ligating arteries and veins, 295 — Treatment of nerves, tendons, and tags of muscle, fascia, and skin, 297 — Trimming of flaps, 297 — Re-amputation for improperly made flaps, 297 — Adjustment and suturing of musculo-periosteal, or periosteo-capsular, covering, 297 — Quilting of muscles, 298 — Drainage, 300 — Suturing of stump, 300 — Dressing of wound, 301 — Removal of dressings, 301. II. The methods of amputation, 301 — The evolution of amputation methods, 301 — Sum- mary of amputation methods, 303 — Circular methods of amputation, 303 — Ordinary circular amputation (Amputation circulaire infundibuliforme), 303 — Cuff method of circular amputation (Circular amputation a la manchette), 305 — Modified circular amputation (mixed method), 306 — Oval method, 307 — Racket method, 308 — Flap methods of amputation, 309 — Amputating by single flap of skin and muscle, 309 — By single flap of skin, 311 — By equal flaps of skin and muscle, 311— By equal flaps of skin, 311 — By unequal flaps of skin and muscle, 313 — By unequal flaps of skin, 314 — By unequal rectangular flaps of skin and muscle (Teale's method), 314 — Elliptical method, 315 — Osteoplastic amputations, 317 — Irregular methods of amputation, 3*7 — Selection of amputation method, 317 — Primary, intermediate, and secondary amputa- tions, 319. III. The amputation stump, 319 — Qualities of a good stump, 319 — Characteristics of a bad stump, 320 — Conditions influencing vitality of stump, 320 — Contractility of tissues of stump, 321 — Position of stump cicatrices, 321 — Function of amputation-stumps, 321 — Site of amputation in connection with the resulting stump and its adaptability to an artificial limb, 322. IV. Surgical Anatomy, Surface Form and Landmarks, General Surgical Considerations and Methods in Amputations and Disarticulations about the Fingers: — Amputation through last phalanx, by palmar flap, 327 — At second phalangeal joint, by palmar flap, 329 — Same, by short dorsal and long palmar flaps, 329 — Through second phalanx, by palmar flap, 330 — Same, by short dorsal and long palmar flaps, 330 — At first phalangeal joint, by palmar flap, 331 — Same, by short dorsal and long palmar flaps, 331 — Through first phalanx, by palmar flap, 331 — Same, by short dorsal and long palmar flaps, 332 — At metacarpophalangeal joints of fingers in general, by oval method, 332 — Same of thumb, by oval method, 334 — Same of thumb, by oblique palmar flap (Farabeuf), 335 — Same of index, by externo-palmar flap (Farabeuf), 335 — Same of little finger, by interno-palmar flap (Farabeuf), 336. V. Same, in Amputations and Disarticulations about the Hand: — Amputation of finger, in general, with part of its metacarpals, by racket method, 341 — Of thumb, with part of its metacarpal, by racket, 342 — Of little finger, with part of its metacarpal, by racket, 342 — Of two contiguous inside fingers, with part of their metacarpals, by racket, 342 — Of three innermost fingers, with parts of their metacarpals, by racket, 342 — Same, by equal dorsal and palmar flaps, 343 — Of all fingers (except thumb), with parts of their metacarpals, by anterior ellipse, 343 — Of an inner finger, with its metacarpal, by racket, 344 — Of index, with its metacarpal, by racket, 344 — Of little finger, with its metacarpal, by racket, 344 — Of thumb, with its metacarpal, by racket, 345 — Of two continuous inside fingers, with their metacarpals, by racket, 346 — Of three inside fingers, with their metacarpals, by rackets, 346 — Of three inner fingers, with their metacarpals, by equal dorsal and palmar flaps, 346 — Of all fingers (except thumb), with their metacarpals, by anterior ellipse, 348 — Of fingers and thumb, at carpo-metacarpal articulation, by palmar flap, 348. VI. Same, in Disarticulations about the Wrist-joint: — Disarticulation at wrist-joint by anterior ellipse, 351 — By palmar flap, 352 — By external lateral, or radial, flap (Dubrueil's method), 353- VII. Same, in Amputations about the Forearm: — Through lower third, by modified cir- cular, 356 — By circular (cuff variety), 357 — Through upper two-thirds, by equal anterior and posterior flaps, 358. VIII. Same, in Disarticulations about Elbow-joint: — Disarticulation of elbow-joint, by anterior ellipse (Farabeuf), 362 — By posterior ellipse, 363 — By long antero-internal and short postero-external flaps, 364. IX. Same, in Amputations about the Arm: — Amputation through lower third, by modified circular, 368 — Through upper two-thirds, by long anterior and short posterior flaps, 370 — Through surgical neck, by single external flap, 370. X. Same, in Disarticulations about the Shoulder-joint: — Disarticulation at shoulder-joint by anterior racket (Spence's operation), 378— By external racket (Larrey's operation), 381— By external or deltoid flap, 382. XI. Amputation of Upper Limb, together with Scapula and part of Clavicle, by antero- inferior (or pectoro-axillary) and postero-superior (or cervico-scapular) flaps (Berger's opera- tion), 383. XII. Surgical Anatomy, Surface Form and Landmarks, General Surgical Considerations, and Methods in Amputations and Disarticulations about the Toes: — Amputation through last phalanx, by plantar flap, 388— At second phalangeal joint, by plantar flap, 389— Through CONTENTS. 7 second' phalanx, by plantar flap, 390 — At first phalangeal joint, by oval, 390 — Through first phalanx, by oval, 392 — Same, by circular, 392 — At metatarso-phalangeal joints of toes in general, by oval method, 392 — At' same of great toe, by interno-plantar flap (Farabeuf), 393 — At same of little toe, by externo-dorsal flap (Farabeuf), 394 — Disarticulation of two adjoining toes at metatarso-phalangeal joints, by oval method, 395 — Of toes en masse, at metatarso-phalangeal joint, by equal short dorsal and plantar flaps, 395. XIII. Same, in Amputations and Disarticulations about Foot: — Amputation of all toes through the metatarsus, by short dorsal and long plantar flaps (Metatarsal amputation), 402 — Disarticulation of toe, with its entire metatarsal, by racket method, 404 — Of great toe and its metatarsal, by racket, 404 — Of little toe and its metatarsal, by racket, 406 — Of two or three contiguous toes with their entire metatarsals, by oval or racket, 407 — Of all toes, at tarso- metatarsal joints, by short dorsal and long plantar flaps (Lisfranc's operation), 407 — Of all toes, at tarso-metatarsal joints, with sawing off of end of internal cuneiform, by short dorsal and long plantar flaps (Hey's operation), 408 — Of anterior part of foot at medio-tarsal joint, by short dorsal and long plantar flaps (Chopart's operation), 409 — Of foot at astragalo-scaphoid and astragalo-calcaneal joints, subastragaloid disarticulation, by large interno-plantar flap (Farabeuf), 410 — Of foot at astragalo-scaphoid and astragalo-calcaneal joints, subastragaloid disarticulation, by heel-flap, 412. XIY. Same, in Disarticulations about Ankle-joint: — Disarticulation of foot at ankle- joint, with removal of malleoli and articular surface of tibia, by heel-flap (Syme's operation), 414 — Disarticulation of foot at ankle-joint, with removal of malleoli, articular surface of tibia, and anterior part of os calcis, by heel-flap (Pirogoff's operation), 415. XV. Same, in Amputation about the Leg: — Through supramalleolar region, by oblique elliptical incision (Guyon's supramalleolar operation), 419 — Through lower third, by large posterior and small anterior flaps (Farabeuf), 420 — Osteoplastic amputation, by long posterior and short anterior flaps, 422 — Through middle third, by long posterior and short anterior flaps (Hey's operation), 424 — Through upper third, by large external flap (Farabeuf), 425 — Same, by bilateral hooded flaps (Stephen Smith's method), 427 — Osteoplastic amputation, through upper third, by antero-internal flap (Bier's method), 429. XVI. Same, in Disarticulations about the Knee-joint: — Disarticulation at knee-joint by bilateral hooded flaps (Stephen Smith), 434 — By an oblique curved incision, 435. XVII. Same, in Amputations about the Thigh: — Through condyles of femur, transcondyloid amputation, by shorter anterior and longer posterior flaps (Lister's modification of Carden's transcondyloid operation), 440 — Just above condyles of femur, with splitting of patella (supra- condyloid osteoplastic amputation of Gritti-Stokes) by longer anterior and shorter posterior flaps, 441 — Femorotibial osteoplastic amputation of lower limb, by longer anterior and shorter posterior flaps (Ssabanajeff's operation), 443 — Through lower third of thigh by oblique circular method, 444 — Through thigh in general, by long anterior and short posterior flaps, 446 — Same, by equal anterior and posterior flaps, 448 — Through thigh just below trochanters, by external oval method, 449. XVIII. Same, in Excisions about the Hip-joint: — Disarticulation at hip-joint by Wyeth's method, 456 — By external racket, 458 — By anterior racket, 459 — Interilio-abdominal amputa- tion (Keen's method), 460. CHAPTER XIII. EXCISIONS AND OSTEOPLASTIC RESECTIONS OF BONES AND JOINTS. I. General Considerations, 463 — Excision by subperiosteal method, 463 — Excision by open method, 467 — Excision of coccyx, by posterior median incision, 468 — Surgical anatomy in excisions about superior maxilla, excision of superior maxilla, by median incision (Fergusson's operation), 471 — Osteoplastic resection of superior maxilla, by vertical and horizontal incisions, 473 — Chondroplastic resection of nasal cartilages, to expose nose and anterior nasopharynx by nasal route, by transverse incision (Rouge's operation), 473 — Osteoplastic resection of superior maxilla, to expose nasopharynx by palatine route, by transverse and median incisions (Annan- dale's operation), 474 — Osteoplastic resection of superior maxilla, to expose nasopharynx by maxillary route, by two semilunar incisions (Langenbeck's operation), 474 — Surgical anatomy in excisions about inferior maxilla, excision of temporomaxillary articulation, by angular incision, 476 — Excision of inferior maxilla, by single incision along inferior and posterior borders, 477 — Osteoplastic resection of lower jaw, to expose structures in pharynx and upon floor of mouth, 479 — Excision of ribs, in general, 479 — Excision of entire rib and costal cartilage by parallel incision over center of rib, 480 — Excision of clavicle, in general, 480 — Total excision of clavicle by long axial incision, 481 — Total excision of scapula, by straight incisions along spine and vertebral border, forming superior and inferior flaps, 482. 8 CONTENTS. II. Surgical Anatomy, Surface Form and Landmarks, General Surgical Considerations and Methods in Excisions about the Fingers: — Excision of terminal phalanges, by U-shaped incision, 484 — Of second phalangeal joints, by two lateral incisions, 484 — Of second phalangeal joint of index, by dorso external incision, 486 — Of second phalangeal joint of little finger, by dorso-internal incision, 486 — Of second phalanges of fingers in general, by dorso-lateral incision, 486 — Of second phalanx, by dorso-external incision, for index-finger, 486 — Of second phalanx of little finger, by dorso-internal incision, 487 — Of first phalangeal joints, by same methods as for second phalangeal joints, 487 — Of first phalanges of fingers in general, 487. III. Same, in Excisions about Hand: — Excision of metacarpophalangeal joints of fingers, in general, by dorso lateral incision, 487 — Of metacarpals, in general, by dorsal incision, 488 — Of metacarpal of thumb, by dorso-external incision, 489 — Of metacarpal of little finger, by dorso-internal incision, 489. IV. Same, in Excisions about Wrist-joint: — Excision of wrist by radial and ulnar dorsal incisions (Oilier), 490 — Same, by single dorso-radial incision (Boeckel-Langenbeck), 491 — Excision of wrist-joint, by single dorso-ulnar incision (Kocher's method), 492. V. Same, in Excisions about Bones of Forearm: — Total excision of ulna, by long posterior incision, 493 — Same, of radius, by long externo-dorsal incision, 494. ■ VI. Same, in Excision about Elbow-joint: — Excision of elbow -joint, by posterior median incision (Langenbeck), 495 — Same, by posterior bayonet-shaped incision, with or without an additional short vertical ulnar incision (Oilier), 497 — Excision of elbow-joint, by vertically curved dorso-external incision (Kocher's method), 498 — Excision of superior radio-ulnar articu- lation, by posterior vertical incision, 500. VII. Same, in Excisions about Humerus: — Excision of humerus, by long external incision, 501. VIII. Same, in Excisions about Shoulder-joint and vicinity: — Excision of shoulder-joint, by anterior oblique incision, 502 — Osteoplastic resection of shoulder-joint, by posterior curved incision (Kocher's method), 503. IX. Same, in Excisions about the Toes: — Excision of terminal phalanges, 423 — Of second phalangeal joints, 506 — Of second phalanges, 506 — Of first phalangeal joint, 506 — Of first phalanges, 507. X. Same, in Excisions about Foot: — Excision of metatarso-phalangeal joints, 507 — Of metatarsals, 507 — Of astragalus, by external curved incision, 507 — Same, by external angular and internal curved incisions, 508 — Of os calcis, by horizontal curved and vertical incisions, 510. XI. Same, in Excisions about Ankle-joint: — Excision of ankle-joint, by transversely curved external incision (Lauenstcin), 511 — Same, by external curved and internal angular incisions, 512 — Osteoplastic resection of anterior tarsus and tarsometatarsus, by internal and external dorsolateral incisions, 513 — Osteoplastic resection of mid-tarsus, by external transverse curved incision, 514 — Osteoplastic resection of posterior tarsus, by external curved incision, 515 — Osteoplastic resection of foot, by transverse upper and lower and oblique lateral incisions (Wladi- miroff-Mikulicz operation), 516 — Total excision of tarsus, by externo-lateral curved incision (modification of Wladimiroff-Mikulicz operation), 518. XII. Same, in Excisions about Bones of Leg:— Total excision of tibia, by internal vertical incision, 519 — Total excision of fibula, by posterior vertical incision, 520 — Total excision of patella, by vertical incision, 520. XIII. Same, in Excisions about the Knee-joint: — Excision of knee-joint, by curved trans- verse anterior incision, 522 — Excision of knee-joint, by vertically curved external incision (Kocher's method), 523. XIV. Same, in Excisions about Femur: — Excision of parts of diaphysis, by external vertical incision, 526. XV. Same, in Excisions about Hip-joint: — Excision of hip-joint, by external straight incision (Langenbeck), 528— Same, by anterior straight incision (Barker), 529— Same, by posterior angular incision (Kocher), 530— Excision of the innominate bone (Kocher), 531. CONTENTS. PART II. THE OPERATIONS OF SPECIAL SURGERY. CHAPTER I. OPERATIONS UPON THE HEAD. I. Crano-cerebral Region: — Surgical anatomy of scalp, skull, and brain, 533 — Chief cranial landmarks, 537 — Cranio-cerebral topography, 538 — Localization of brain areas, 543 — Chipault's method of cranio-cerebral localization, 540 — Bell's cyrtometer in Chipault's method of cranio-cerebral localization, 550 — Reid's method of same, 551 — Kroenlein's method of same, 553 — Chiene's method of determining Rolandic fissure, 554 — General surgical considerations in cranio-cerebral operations, 554 — Instruments, 557 — Craniotomy, in general, 557 — Trephining, or circular craniotomy, 55S — Osteoplastic resection of skull, 565 — Linear craniotomy, 580 — Partial craniectomy, 581 — Exploratory puncture of brain, 5S4 — Operation for intracranial hemorrhage, 585 — Ligation of middle meningeal artery and its anterior and posterior branches, 586 — Ligation of longitudinal or lateral sinuses, 586 — Operation for thrombosis of lateral sinus, 588 — Trephining for fracture of skull, 590 — Operation for bullet-wound of brain, 591 — Opera- tion for exposure of a motor center, 593 — Puncture and drainage of lateral ventricles, 594 — Incision of cerebellar subarachnoid space for drainage (Parkin), 595 — Operation for cerebral abscess, 595 — For cerebellar abscess, 596 — For cerebral tumor, 597 — For cerebellar tumor, 599 — Operations upon mastoid antrum and cells, 599 — Operations upon Gasserian ganglion, 599. II. Bony (Air) Sinuses of Head and Face: — Operations upon mastoid antrum and cells, 600 — Surgical anatomy, 600 — Surface form and landmarks, 602 — General surgical considera- tions, 603 — Operation for exposure of mastoid antrum and cells (Antrum operation of Schwartze), 604 — Operation for exposing mastoid antrum and cells, together with interior of tympanun and meatus, and the exenteration of middle-ear cavities (the tympano-mastoid exenteration, or radical operation, of Schwartze-Stacke, or Schwartze-Zaufal), 606 — Operations upon frontal sinuses, 608 — Surgical anatomy, surface form and landmarks, and general surgical considera- tions, 608, 609 — Instruments, 610 — Exposure and drainage of frontal sinuses, 610 — Operations upon maxillary sinuses, 611 — Surgical anatomy, surface form and landmarks, and general surgical considerations, 611, 612 — Instruments, 613 — Opening of maxillary sinus through its facial aspect, above alveolar margin, 613 — Opening through socket of second molar tooth, 614. III. Eyeball and Orbit: — Operations upon the eyeball, 614 — Surgical anatomy of orbit, 614 — Enucleation of eyeball, 615 — Evisceration of eyeball, 616 — Exenteration of orbit, 616 — Exposure of entra-orbital and retrobulbar structures (Kroenlein's operation), 617. IV. Ear and Eustachian Tube: — Surgical anatomy of membrana tympani, 61 8 — Intro- duction of ear speculum for examination of membrana tympani, 618 — Paracentesis tympani, 619 — Introduction of Eustachian catheter, 619. Y. Xose and Nasal Cavities, 619. VI. Tongue: — Surgical anatomy, 619 — General surgical considerations, 620 — Instruments, 621 — Excision of limited portion of tongue, 622 — Excision through mouth, without preliminary ligation of lingual arteries (Whitehead), 622 — Excision through mouth, after preliminary ligation of Unguals in neck, 624 — Excision of tongue by median incision through lower lip, chin, and neck, with osteoplastic division of inferior maxilla (Kocher), 624 — Excision of tongue, together with cervical and submaxillary glands, by an incision in neck, after preliminary tracheotomy and ligation of lingual and facial ateries (Kocher), 627. CHAPTER II. OPERATIONS UPON THE SPINE AND SPINAL CORD. Surgical anatomy, 629 — Surface form and landmarks, 632 — General surgical considerations, 642 — Osteoplastic resection of spine, 648 — Laminectomy, 661 — Subarachnoid puncture for spinal anesthesia, 666 — Lumbar puncture for diagnosis and therapeusis, 669 — Spinal puncture for drainage of subarachnoid space, 670 — Operative treatment of fractures of spine, 670 — Operative treatment of dislocations of spine, 672 — Operative treatment of fracture-dislocations of spine, 673 — Operative treatment of incised and penetrating wounds of cord, 674 — Operative treatment of gunshot wounds of cord, 675 — Intraspinal partial neurectomy of posterior nerve- IO CONTENTS. roots, 679 — Spina bifida, 679 — Operative treatment of posterior vertebral tubercular osteitis of spine, 685 — Operative treatment of anterior vertebral osteitis, Pott's disease, 685. CHAPTER III. OPERATIONS UPON THE NECK. I. Larynx: — Surgical anatomy of neck, 695 — Surgical anatomy of larynx, 695 — Surface form and landmarks, 695 — Instruments, 696 — Laryngotomy, 697 — Thyrotomy, 698 — Com- plete laryngectomy, 699 — Partial laryngectomy, 700 — Intubation of larynx (O'Dwyer), 701 — Other operations, 702. II. Trachea: — Surgical anatomy, 702 — Surface form and landmarks, 703 — General sur- gical considerations, 703 — Instruments, 703 — High tracheotomy, 704 — Low tracheotomy, 706 — Other operations, 706. III. Pharynx: — Surgical anatomy, 707 — Instruments, 707 — Median pharyngotomy, by median vertical incision through mouth, 708 — Lateral pharyngotomy, by curved lateral incision through neck (Kocher), 708 — Subhyoid pharyngotomy, by transverse curved incision through neck, 709 — Exposure of retro-pharyngeal space, by lateral cervical incision along posterior border of sternomastoid (Chiene), 710. IY. Esophagus: — Surgical anatomy, 711 — General surgical considerations, 712 — Instru- ments, 712 — External cervical esophagotomy, 712 — Cervical esophagostomy, 714 — Partial cervical esophagectomy, 714 — Introduction of esophageal bougie, 715 — Other operations, 715. V. Tonsils: — Surgical anatomy, 717 — General surgical considerations, 717 — Instruments, 717 — Tonsillotomy, 717 — Partial tonsillectomy through mouth, 718 — Complete tonsillectomy through mouth, 718 — Complete tonsillectomy through neck (Cheever), 719. VI. Parotid Gland and Stenson's: — Surgical anatomy, 721 — Instruments, 722 — Excision, 722. VII. Submaxillary Gland and Wharton's Duct: — Surgical anatomy, 724 — Instruments, 724 — Excision, 725. VIII. Sublingual Gland and Duct of Bartholin: — Surgical anatomy, 726 — Instruments, 725 — Excision, through floor of mouth, 726. IX. Thyroid Gland: — Surgical anatomy, 727 — Instruments, 727 — Partial thyroidectomy, by angular incision (Kocher), 727 — Complete thyroidectomy, by transverse curved incision (Kocher), 729. CHAPTER IV. OPERATIONS UPON THE THORAX. I. Thoracic Wall and Contents: — Surgical anatomy, 731 — Surface form and landmarks, 733 — Instruments, 734 — Chrondroplastic resection of chest-wall, by subcostal incision and temporary division of seventh, eighth, ninth, and tenth costal cartilages, 734. II. Female Mammary Gland: — Surgical anatomy, 736 — Surface form and landmarks, 736 — General surgical considerations, 736 — Incision of breast, 737 — Partial excision of breast by elliptical incision, 737 — Radical excision, by Meyer's method, 738 — Radical excision, by Hal- sted's method, 741 — Radical excision, by Warren's method, 744 — Ordinary excision, by elliptcal incision, 745 — Subcutaneous excision, by inferior curved incision, 746. III. Superior Mediastinum: — Surgical anatomy, 747 — Surface form and landmarks, 747 — General surgical considerations, 747. IV. Anterior Mediastinum: — Surgical anatomy, 748 — Anterior mediastinal thoracotomy, by long median incision (Milton's anterior mediastinotomy), 748 — Anterior mediastinal thora- cotomy, by osteoplasic resection of part of sternum corresponding with third, fourth, and fifth costal cartilages, 750 — Other operations, 752. V. Middle Mediastinum: — Surgical anatomy, 752 — Operations upon middle medias- tinum, 752. VI. Posterior Mediastinum: — Surgical anatomy, 752 — Posterior mediastinal thoracotomy, by thoracoplastic flap (Bryant), 752. VII. Diaphragm: — Surgical anatomy, 755 — Transthoracic exposure of diaphragm, by partial excision of two or three ribs, 756. VIII. Pleura;: — Surgical anatomy, 759 — Surface form and landmarks, 760 — Paracentesis thoracis, 761 — Intercostal thoracotomy, 761 — Thoracotomy, by partial excision of one or more ribs, 763 — Partial pleurectomy (Estlander's thoracoplastic operation), 765 — Partial pleurectomy (Schede's thoracoplastic operation), 768 — Total pleurectomy (Fowler's thoraco- plastic operation), 770 — Discission of pleura in chronic empyema (Ransohoff's operation), 771 — Other operations, 771. CONTENTS. II IX. Lungs: — Surgical anatomy, 772 — General surgical considerations, 773 — Pneumotomy, through a cutaneo-muscular thoracoplastic flap, 774 — Partial pneumectomy, through cutaneo- musculo-osseous thoracoplastic flap, 776. X. Pericardium: — Surgical anatomy, 7S0 — Surface form and landmarks, 780 — Pericardio- centesis, 7S1 — Pericardiotomy, through intercostal incision, 7S2 — Exposure of pericardium and heart, by excision of left fifth costal cartilage, 7S4 — Pericardiorrhaphy, 7S5. XL Heart; — Surgical anatomy, 785 — Paracentesis of right auricle, 787 — Paracentesis of right ventricle, 787 — Exposure of heart and pericardium, by a thoracoplastic flap (Rotter's operation), 788 — Cardiorrhaphy, 790. XII. Thoracic Trachea: — Surgical anatomy, 791 — Thoracic tracheotomy, 791. XIII. Bronchi: — Surgical anatomy, 791 — Bronchotomy, 791. XIV. Thoracic Esophagus, 792 — Surgical anatomy, 792 — Thoracic esophagotomy, by posterior mediastinal osteoplastic flap operation, 792. CHAPTER V. OPERATIONS UPON THE ABDOMINO-PELVIC REGION. I. Abdomino- pelvic Wall: — Surgical anatomy, 793 — Surface form and landmarks, 797 — General surgical considerations, 799 — Instruments, 801 — Median abdominal section, 801 — Anterolateral abdominal section, by McBurney's intramuscular "gridiron" incision, S07 — Anterolateral abdominal section, by the Harrington-Weir prolongation of the anterolateral intra-muscular incision through rectal sheath, with temporary displacement of rectus, 810 — Anterior abdominal section through rectal sheath, with temporary- displacement of rectus, by the Battle-Jalaguier-Kammerer method, 811 — Median inferior abdominal section by Pfannen- stiel's superficial transverse curved, and deep vertical incisions, 815 — Inferior anterolateral abdominal section, by Meyer's "hockey stick" incision, 817 — Inferior anterolateral abdominal section, by Fowler's angular incision, 818 — Superior anterolateral abdominal section, by oblique- subcostal incision, 818 — Exposure of hypochondriac regions by chondroplastic resection of chest-wall, by subcostal incision and temporary division of seventh, eighth, ninth, and tenth costal cartilages, S19 — Lateral abdominal section by Vischer's lumbo-iliac incision, S19. II. Peritoneum: — Surgical anatomy, 820 — General surgical considerations, 822 — Opera- tions for separation, division, or ligation of peritoneal adhesions, 822 — Paracentesis abdominis, 824 — Operative treatment of diffuse septic peritonitis (Murphy's method), 825 — Same (Blake's method), 826 — Operative treatment of intra-abdominal abscess, 829. III. Omentum: — Surgical anatomy, 830 — General surgical considerations, 831 — Ligation of omentum, 831 — Omental grafting, 832. IV. Mesentery: — Surgical anatomy, 833 — General surgical considerations, 833 — Partial excision, 833 — Suturing, 833. V. Intestines: — Surgical anatomy of small intestines, 833 — Surface form and landmarks of small intestines, 836 — Surgical anatomy of large intestines, 836 — Surface form and landmarks of large intestines, 839 — General surgical considerations in operations upon the intestines, S40 — Instruments, 840 — Enterotomy, 841 — Enterorrhaphy, in general, 841 — By Lembert's interrupted suture, S43 — By Czerny-Lembert interrupted suture, 844 — By Halsted's interrupted quilt or mattress suture, 845 — By Lembert's continuous suture, 846 — By Cushing's right-angled con- tinuous suture, 846 — By combined overhand continuous suture of all coats, followed by inter- rupted Lembert suturing of outer coats, 848 — Enterorrhaphy for wounds of intestine, 848 — ■ Partial enterectomy, 850 — Entero-enterostomy (intestinal anastomosis, approximation, and implantation) in general, 854 — (A) Entero-enterostomy by methods of simple suturing, in general, 855 — By simple continuous overhand suture of all coats, followed by interrupted or continuous Lembert sutures of outer coats, by author's method, 856 — By perforating mattress sutures knotted in lumen (Connell's method), 864 — By Czerny-Lembert interrupted suture, 867 — By Halsted's method of interrupted mattress or quilt sutures, 868 — By Maunsell's invagina- tion method, 870 — (B) Entero-enterostomy by means of absorbable mechanical devices left within the intestines, in general, 878 — By means of absorbable bobbins, 879 — By absorbable buttons, 880 — By Ullmann's modification of Maunsell's method, 881 — By Coffey's method, 883 — (C) Entero-enterostomy by means of non-absorbable mechanical devices left within the intestinal canal, in general, 883 — By means of the Murphy button, 885 — Lateral intestinal anastomosis by the Jaboulay button, 892 — Entero-enterostomy by Harrington's segmented rings, 893 — (D) Entero-enterostomy by mechanical means temporarily used for approxima- ting the intestinal edges during suturing, in general, 895 — By means of Lee's intestinal holder, 895 — Excision of ilio-caecum, 899 — Appendicectomy, by McBurney's intramuscular operation, 900 — Appendicectomy through the rectal sheath, 911 — Appendicectomy, by the non-intramus- cular method, 911 — Appendicectomy, by Weir's operation, 912 — Enterostomy, in general, 913 — Right inguinal enterostomy (or ileostomy) for establishment of temporary fecal fistula 12 CONTENTS. of a permanent artificial anus, 914 — Colostomy, in general, 916 — Left inguinal colostomy, 917 — Anterior intramuscular colostomy (Mixter's operation), 921 — Left lumbar colostomy, 924 — Operation for closure of fecal fistula and artificial anus, 927 — Enteroplasty, 930 — Opera- tion for intussusception (Jessett- Barker method), 930 — Colopexy, by Bryant's method, 932 — Rectopexy, by Verneuil's method, 933 — Internal rectotomy, 934 — External rectotomy, 934 — Excision of rectum, in general, 935 — Excision by sacral route by partial excision of sacrum (Kraske's operation), 935 — Excision by sacral route, by the Rehn-Rydygier osteoplastic flap method, 940 — Excision of lower part of rectum by perineal route, 942 — Operation for cure of hemorrhoids by ligation and excision (Allingham's method), 944 — Operation for cure of hemor- rhoids by excision (Whitehead's method), 945 — Operation for cure of hemorrhoids by clamp and cautery, 946 — Operation for cure of fistula-in-ano by incision, 947. VI. Stomach: — Surgical anatomy, 950 — Surface form and landmarks, 951 — General surgi- cal considerations, 951 — Instruments, 952 — Introduction of stomach-tube, 952 — Gastrotomy, by' median incision, 952 — Gastrotomy by oblique subcostal incision, 954 — Gastrorrhaphy, 955 — Gastrostomy, in general, 956 — Gastrostomy, by Ssabanajew-Franck's method, 957 — Same, by Witzel's method, 959 — Same, by Marwedel's method, 962 — Same, by Kader's method, 964 — Gastro-enterostomy, in general, 967 — Anterior gastro-enterostomy, by simple suturing (Wolfler's method), 968 — Same, by the Murphy button, followed by single or multiple intestinal anastomosis by the Jaboulay-Braun method, 971 — Posterior gastro-enterostomy, by von Hacker's method, 974 — Same, by the Murphy button, 978 — Gastrogastrostomy by Wolfler's method, 979 — Gastroplication, by Weir's modification of Bircher's method, 981 — Same, Moynihan's modification of Bircher's operation, 983 — Gastropexy, 983 — Gastrolysis, 983 — Gastroplasty, 9S4 — Pyloroplasty, by Heineke-Mikulicz method, 984 — Divulsion of pyloric orifice of stomach, by Loreta's method, 986 — Dilatation of cardiac orifice of stomach, 987 — Gastro-duodenostomy (Finney's operation), 987 — Pylorectomy, in general, 991 — Pylorectomy, followed by independent gastrojejunostomy (Mayo's operation), 991 — Pylorectomy, followed by end-in-side posterior gastro-duodenostomy, by Kocher's method, 994 — Pylorectomy followed by end-to-end gastro- enterostomy, by Billroth's method, 997 — Partial gastrectomy, of median portion, 999 — Total gastrectomy, 1001 — Operation for gastric ulcer, 1002. VII. Liver: — Surgical anatomy, 1004 — Surface form and landmarks, 1006 — General surgical considerations, 1006 — Instruments, 100S — Exploratory puncture of liver, 1008 — Hepatotomy, in general, 1009 — Anterior subcostal transperitoneal hepatotomy, by anterior oblique incision parallel with costal arch, 1010 — Exposure of liver by anterior subcostal trans- peritoneal route, by anterior vertical incision through right linca semilunaris, 10 12 — Exposure of liver by lateral subcostal transperitoneal route, by lateral horizontally curved incision below right twelfth rib, 1013 — Exposure of liver by intercostal subpleural route, by intercostal incision below level of pleura, 10 13 — Exposure of liver by subpleural route, by partial excision of one or more ribs below level of the pleura, 1014 — Exposure of liver by subpleural route, by partial excision of one or more ribs opposite the pleura, 10 14 — Exposure of liver by transpleural route, by partial excision of one or more ribs opposite the pleura, 1016 — Exposure of liver by chon- droplastic resection of right costal arch, by anterior oblique subcostal incision, 1017 — Hepator- rhaphy, 1019 — Hepatopexy, 1019 — Partial hepatectomy, 1019 — Operation for cirrhosis of liver, epiplorrhaphy, or epiplopexy (Talma-Drummond operation), 1021. VIII. Gall-bladder: — Surgical anatomy, 102 1 — Surface form and landmarks, 1022 — General surgical considerations, 1022 — Instruments, 1022 — Cholecystotomy, by vertical sub- costal incision, 1022 — Cholecystostomy, by oblique or vertical subcostal incision, 1024 — Cho- lecystenterostomy, by Murphy button, 1026 — Cholecystenterostomy by simple suturing, 1028 — Cholecystolithotrity, 1028 — Cholecystectomy, 1029. IX. Gall-ducts: — Surgical anatomy, 1030 — Surface form and landmarks, 1031 — Instru- ments, 1031 — General surgical considerations, 1031 — Supraduodenal choledochotomy, 1031 — Retroduodenal choledochotomy (Haaslers operation), 1034 — Transduodenal choledochostcmy (Kocher's operation), 1034 — Cysticotomy, 1035 — Hepaticotomy, 1036. X. Spleen: — Surgical anatomy, 1036 — Surface form and landmarks, 1037 — General surgical considerations, 1037 — Instruments, 1038 — Exploratory puncture, 1038 — Splenotomy, by oblique subcostal incision, 1038 — Exposure of spleen by subpleural route, by partial excision of one or two ribs, 1039 — Splenorrhaphy, 1039 — Splenopexy, 1039 — Partial splenectomy, by subcostal incision parallel with ribs, 1040 — Total splenectomy, by vertical incision in left inea semilunaris, 1041. XI. Pancreas: — Surgical anatomy, 1043 — Surface form and landmarks, 1044 — General surgical considerations, 1044 — Instruments, 1046 — Pancreatotomy, by gastrocolic route, 1046 — Partial pancreatectomy, by gastrocolic route, 1047. XII. Kidneys: — Surgical anatomy, 104S — Surface form and landmarks, 105 1 — General surgical considerations, 1052 — Instruments, 1053 — Retroperitoneal exposure of kidney by oblique lumbar incision, 1053 — Retroperitoneal exposure of kidney, by Koenig's augular lumbo- abdominal incision, 1056 — Retroperitoneal exposure of kidney, by lumbar intramuscular method, 1057 — Transperitoneal exposure of kidney, by vertical incision in linea semilunaris (Langenbuch's CONTEXTS. 13 operation), 1057 — Transperitoneal exposure of kidney by median abdominal section, 1059 — Exposure of kidney by combined abdominolumbar operation, by anterior transperitoneal and posterior retroperitoneal incisions, 1059 — Exploratory puncture of kidney, 1060 — Nephrotomy, 1061 — Pyelotomy, 1062 — Nephrolithotomy, 1062 — Nephrorrhaphy, 1063 — Nephropexy, by suturing split and everted proper capsule of kidney to lumbar wall, Edebohls's operation, 1064 — Nephropexy, by suturing split proper capsule and parenchyma of kidney to lumbar wall, by oblique lumbar incision, Tuffier's operation, 1068 — Nephropexy, by simple suturing, 1069 — Total nephrectomy, by oblique lumbar incision, 1070 — Partial nephrectomy, by oblique lumbar incision, 1072 — Subcapsular nephrectomy, 1072 — Total nephrectomy by anterior transperitoneal method, 1072. XIII. Ureters: — Surgical anatomy, 1073 — Surface form and landmarks, 1074 — General surgical considerations, 1075 — Instruments, 1076 — Exposure of ureters, in general, 1076 — Extraperitoneal exposure of the kidney and the entire ureter, by oblique lumbo-iliac incision, 1076 — Ureterotomy, 1078 — Ureterorrhaphy, 1079 — Ureteroplasty, 10S0 — Uretero-ureteral anas- tomosis (uretero-uret'-rostomy), 1080 — Implantation of ureters, in general, 1084 — Implantation of ureters into bladder (ureterocystostomy), 10S5 — Implantation of ureters into large intestine (ureterorectostomy) by Fowler's method, 1086 — Implantation of ureters upon skin, 1089 — ■ Ureterectomy, in general, 1089 — Partial ureterectomy, by oblique lumbar incision, 1090 — Total ureterectomy, together with removal of kidney, by anterior median abdominal section, 1090. XIY. Bladder: — Surgical anatomy, 1091 — Surface form and landmarks, 1092 — General surgical considerations, 1093 — Instruments, 1094 — Introduction of sound or catheter, 1094 — Paracentesis vesica 1 , 1095 — Cystotomy, in general, 1096 — Suprapubic cystotomy, 1096 — Lateral perineal cystotomy, for removal of vesical calculus, 1099 — Median perineal cystotomy, for removal of vesical calculus, 1102 — Cystorrhaphy, 1103 — Lithotrity, 1104 — Litholapaxy, 1104 — Vesical drainage, 110S — Partial cystectomy, 1109 — Total cystectomy, by suprapubic median vertical and transverse incisions, 11 10. CHAPTER VI. OPERATIONS UPON THE MALE GENITAL ORGANS. I. Penis: — Surgical anatomy, 11 n — Instruments, n n — Circumcision, n 12 — Partial amputation of penis, by flap method, 11 14 — Total amputation, n 16. II. Urethra: — Surgical anatomy of male urethra, 111S — Surgical anatomy of female urethra, n 19 — Surface form and landmarks, n 19 — General surgical considerations, n 19 — Instruments, 11 20 — Introduction of sound or catheter, n 20 — Meatotomy, 11 20 — Urethrotomy, in general, 1120 — Internal urethrotomy, by dilating urethrotome, 1121 — External perineal urethrotomy, upon grooved staff (Syme's operation), 1123 — External perineal urethrotomy, upon filiform guide (Gouley's operation), n 24 — External perineal urethrotomy upon grooved staff passed down to stricture (Wheelhouse's operation), n 25 — Perineal section, or external perineal urethrotomy without a guide (Cock's operation), 1126 — Urethrorrhaphy, 1127 — Urethrostomy, n 27. III. Scrotum and Testes: — Surgical anatomy, 1128 — Paracentesis tunica vaginalis, 1129 — Partial excision of scrotum, n 29 — Operation for hydrocele, by incision of tunica vaginalis, Volkmann's operation, 1131 — Operation for hydrocele, by eversion and suturing of tunica vaginalis (Jaboulay's operat'on), 1132 — Operation for hydrocele, by incision, with partial excision of tunica vaginalis, von Bergmann's operation, 1133 — Orchidectomy, 1 134. IV. Spermatic Cord: — Surgical anatomy, 113^ — Instruments, 1136 — Partial vasectomy, 1 136 — Operation for radical cure of varicocele, Bennett's modification of Howse's operation, II37- V. Vesiculae Seminales and Ejaculatory Ducts: — Surgical anatomy, 1138 — Instruments, 1 139 — Total excision of vesiculae seminales and part of ejaculatory ducts, by suprapubic retro- cystic extraperitoneal route, Young's operation, 1139- VI. Prostate Gland: — Surgical anatomy, 1140 — Instruments, 1141 — Prostatotomv — Prostatectomy, in general, 1141 — Suprapubic prostatectomy, by median vertical incision, 1 142 — Perineal prostatectomy, by transverse curved incision, 1143 — Prostatectomy by the combined median suprapubic and median perineal incisions, Alexander's operation, 1144 — Note, 1 146. CHAPTER VII. OPERATIONS UPON THE FEMALE GENITAL ORGANS. I. Uterus: — Surgical anatomy of uterus, broad ligaments, round ligaments, and vagina, 1147— Surface form and landmarks, 1 1 50 —Instruments, 1150 — Partial abdominal hysterectomy, together with removal of ovaries and tubes (partial abdominal hysterosalpingo-oophorectomy), 14 CONTENTS. 1 151 — Total abdominal hysterectomy, together with removal of ovaries and tubes (total abdomi- nal hysterosalpingo-oophorectomy), 11 53 — Total vaginal hysterectomy, 1153. II. Ovaries: — Surgical anatomy of ovaries, Fallopian tubes, 1150 — Ovariectomy, or oopho- rectomy, with removal of Fallopian tube (salpingo-ovariectomy, or salpingo-oophorectomy), 1 1 60— Note, 1 1 62 . CHAPTER VIII. OPERATIONS FOR HERNIJE. I. Inguinal Hernia, 1163 — Surgical anatomy, 1163 — General surgical considerations, 1164 — Instruments, 1166 — Operation for radical cure of oblique inguinal hernia (Bassini's method), 1166 — Operation for radical cure of same (Halsted's method), 1171. II. Femoral Hernia, 1174 — Surgical anatomy, 1174 — General surgical considerations, 1 1 76 — Operation for radical cure of femoral hernia (Bassini's method), 11 76. III. Umbilical Hernia, n 78 — Surgical anatomy, n 78 — Operation for radical cure of umbilical hernia by excision of sac and suturing of freshened edges of ring, n 79 — Operation for radical cure of umbilical hernia (Mayo's overlapping method), n 81. Index 1185 A TEXT-BOOK OPERATIVE SURGERY BICKHAM PART I. THE OPERATIONS OF GENERAL SURGERY. CHAPTER I. OPERATIONS UPON THE ARTERIES. LIGATION OF ARTERIES. GENERAL CONSIDERATIONS. Description. — The ligation of an artery signifies the constriction of the artery by means of a ligature, for the purpose of controlling the circulation in that vessel. Varieties of Ligation. — A ligation may be "terminal," where the cut end of an artery is tied; — " in continuity," where tied in its unbroken course; — "single," where but one ligation is used; — "double," where two are applied (as in dividing a vessel between ligatures); — "immediate," where applied directly to the artery proper; — "intermediate," where the ligature passes around more or less connective or other tissue surrounding the artery (as in ligation for parenchymatous hemorrhage); — "permanent," where applied to remain; — or "temporary," where applied for arrest of circulation for a brief period. Indications for Ligation of Arteries. — Wounds; aneurisms; hemor- rhage, from main trunk near site of ligation, or from either main trunk or one of its branches at a distance from site of ligation; rupture of vessels; angiomata; to control hemorrhage in operations distal to site of ligation; to lessen nutrition of inoperable tumors; to cause atrophy of an organ by diminishing its blood-supply. Preparation. — (i) General; — -none is necessary for the smaller ligations. In the case of the ligation of the larger arteries, the constitutional state of the patient should be looked after as in other major operations. (2) Local; — the usual antiseptic preparation of the part — the patient coming to the table with the site of operation in an aseptic dressing. Position. — Patient upon table of proper height, and so placed as to bring the involved artery most conveniently and advantageously before the surgeon. Surgeon stands where he can best manipulate, which is generally on the side of the operation, and usually cuts downward on the right, and upward on the left. Assistant generally stands opposite the surgeon, and exposes the field of operation by retraction, or assists in the steps of the ligation. The position of patient, surgeon, and assistant will vary according to the artery operated upon, and will be given in the individual operations. Instruments. — Esmarch bandage and tourniquet; scalpels, heavy and 2 17 18 OPERATIONS UPON THE ARTERIES. light; scissors, straight and curved, sharp-pointed and blunt; forceps, dis- secting and toothed; hemostatic forceps; grooved director; tenacula; re- tractors, various sizes and shapes; aneurism-needles, large and small, straight and laterally curved; ligature-carrier; ligaturing and suturing material (v. i.); needles, straight and curved, surgeon's and Hagedorn; needle-holder; wound- hooks; drainage materials (for special emergencies); special small needles, fine silk, and needle-holder for repairing wounds of vessels; means of illuminating deep wounds. Ligature Materials. — Plain catgut; chromicized catgut; kangaroo tendon; ox aorta: silk, plain and floss. For the closure of skin-wounds, silkworm-gut or silk sutures. (i) For the ligation of smaller arteries — plain catgut. (2) For medium arteries — chromicized catgut. (3) For largest arteries — kangaroo tendon (flat); ox aorta (flat); chromicized catgut; soft floss-silk. Steps of the Operation of Ligation. — For the satisfactory carrying out of a ligation, a systematic course should be followed in all cases, the proper steps of which are given below, in order. (a) Control of Circulation Preliminary to Operation. — In ligating the arteries of the head, neck, and trunk, no attempt is usually made to control the circulation by any means of pressure. In the limbs, also, it is rarely absolutely necessary. But where its use is preferred, — and the satis- faction of operating in a dry field is unquestionable, — the limb is first elevated, the soft parts massaged toward the trunk, and the tourniquet of Esmarch (without the previous use of the Esmarch rubber bandage) is applied around the limb, as high up as indicated. The sacrifice of the guiding pulsation (necessitated by the use of any form of constrictor) is counterbalanced by the dryness of the field, especially in prolonged and difficult operations. (b) Line of Artery. — This is determined in advance of any operative step, and is based upon a knowledge of the anatomy of the part. A knowledge of the chief variations in the course of the arteries should also be possessed. Acquaintance with the line of the special artery is an absolute pre-requisite — a correct line, properly followed, leading directly and expeditiously to the goal of the operation; — an incorrect line, once taken, often plunging the operator into unnecessary difficulties from the start, frequently requiring loss of time, retracing of steps, unnecessary injury to structures, and the regaining of the right path finally after considerable and humiliating bungling. This line of the artery may be previously marked out upon the body with a sterilized dermographic pencil (or nitrate of silver stain) — but such marking is generally unnecessary. ( 1) The line of the artery is frequently modified by the position of the limb, and, in such cases, a constant position should be understood to apply in speaking of such arteries (for instance, the line of the brachial artery is one thing, if the arm be lying out supine at a right angle to the body, and another, if resting on its inner border parallel with the thorax. (Fig. 23.) On the other hand, no change in the position of the foot causes a change in the line of the dorsalis pedis (Fig. 54.) (2) The line of an artery often coincides so nearly with muscular or tendinous landmarks that these landmarks are often given instead of the line itself (for instance, one may speak of ligating the brachial artery by incising along a line extending from the junction of the anterior and middle thirds of the outer axillary boundary, to the middle of the bend of the elbow, the arm being at a right angle to the body and on its extensor surface; or one may also speak of ligating this artery by incising along the inner border of the coracobrachialis muscle above, and the biceps below, Fig. 23). It is well to know both the commonly accepted "line" and the natural muscular or other markings — the former is usually the more LIGATION OF ARTERIES. 19 accurate guide to the vessel, especially in the early stage of the operation (for instance, in the above case, the brachial artery is often considerably overlapped by the biceps in a well-developed subject), though the latter are the natural boundaries, which generally have to be encountered and manipulated before finally reaching the artery. (3) In other cases the line bears no relation what- ever to external muscular or tendinous elevations or furrows, and, in such cases, the line alone has to be blindly followed, in the early part of the opera- tion, as a guide to the course of the artery (as in the case of the upper portion of the ulnar artery, Fig. 30). (c) Incision. — (I) Position and Direction of Incision: — In the great major- ity of cases the line of incision coincides with the line of the artery, from begin- ning to end of operation, superficially and in the deeper layers (as in ligation of the popliteal artery in the middle of the popliteal space), and should be so placed as to have its center over the site of ligation. In other cases the line of incision will follow a muscular marking, even if at a slight variance with the recognized "line of artery" (e. gr, in ligating the common carotid above the omohyoid, the incision is made parallel with the inner margin of the stern omastoid, which, in muscular and well-developed necks, is known to overlap and lie slightly to the inner side of the artery, Fig. 10, F). In other cases the incision follows neither line of artery nor muscular marking, but lies in a course parallel with both line of artery and muscular fibers, and is so placed as to reach the vessel most advantageously and with least damage to neighbor- ing structures (e. g., ligation of posterior tibial artery in middle of leg, Fig. 51, I). In other cases the incision may coincide with the line of artery but cross an overlying muscle at a right angle (e. g., ligation of lingual artery beneath the hyoglossus muscle, Fig. 10, L). In still other cases the incision may cross the course of the artery at a right angle (e. g., ligation of external iliac extraperi- toneally, by an incision parallel with Poupart's ligament, Fig. 39). (2) Super- ficial Incision : — Having chosen the line of incision as free from superficial vessels and nerves as circumstances permit, steady the area of incision by means of the left thumb and forefinger, which, by their separation, put the parts under slight tension and give room for the knife-cut between them. Grasp the scalpel in the "pen-position" for finer, more limited cuts, and in the "dinner-knife position" for heavier, longer cuts. Enter the point of the scalpel at a right angle to the skin surface — traverse the line of incision with the knife-handle at about 45 degrees — and withdraw the knife with the point of blade again at a right angle to the surface, thereby cutting to equal depth throughout. This incision should pass through skin and superficial fascia, and, while not unnec- essarily long, should be amply long enough to enable subsequent manipulations to be carried on without injury to the structures. The length of the incision should rather be determined by the depth of the artery and the nature of the parts to be encountered, than by any attempt to remember an arbitrary length of incision for each artery. The deep fascia is similarly divided in the original line — avoiding, where possible, superficial vessels, and, especially, nerves. (3) Deep Incision: — Having passed through all overlying fascia in the superficial incision, the muscle and tendinous landmarks now come to both sight and touch. Generally no further cutting is necessary — the rest of the approach "and exposure of the artery being accomplished by blunt dissection. In by far the majority of cases arteries are henceforth reached by following down between muscular planes, it being very rare that muscle-fibers are separated, and rarer still that muscles are cut transversely. At this stage of the operation the muscular or tendinous boundaries are recognized and followed to the known position of the artery, the intermuscular planes being separated 20 OPERATIONS UPON THE ARTERIES. by the handle of the scalpel rather than by the blade, and this separation being carried out t<> correspond with the length of the superficial wound. The three best means of recognizing intermuscular planes, in the order of their reliability, are: — sense of touch of tip of left index-finger (which flexion of the limb may assist); — following down of intermuscular branches of the artery; — the white fascial, or yellow fatty, so-called ''line' ' in the intermuscular spaces. It is of great importance to recognize the proper intermuscular spa< e at the start, as, once in a wrong intermuscular interval, one may wander on indefinitely, completely off the track, missing the artery and doing much damage to the parts (and injury to one's own feelings). Good retraction should be freely used at this stage, and muscles and tendons should be drawn to their proper sides (flexing the limb often aiding considerably in this retraction). Important vessels, nerves, and other structures should be guarded during this separation of the parts, and, when in the way, should be displaced to the more convenient side of the operation-field — always remembering that nerves are the most important structures to be safeguarded, in the great majority of cases. If an Esmarch have not been used, the wound is kept comparatively dry by frequent sponging of the field with dry gauze-wipes. (d) Exposure of Artery. — Having gotten down into the region of muscles and tendons, these should be clearly identified, and the artery sought by its known relation to these structures. The muscles and tendons are the rallying- points in the depth of the wound. Three structures, outwardly more or less similar in appearance, and often in sensation, are to be distinguished: — (I) Arteries are recognized by their known course; their pulsation, when no proximal constriction is used (and by the hard, unyielding plaster or starch injection in the cadaver) ; their swelling proximally when compressed distaily (where no constrictor is used); their firm, round, resisting, elastic, cord-like feeling; their peculiar sensation when compressed between the fingers, present- ing a central depression and two lateral, elevated ridges; their thicker walls; their rubber-tube-like feeling when touched and tendency to glide from beneath the fingers; the force required to compress them; their regular outline; their pinkish or pinkish-yellow color. Of these means of recognition, pulsa- tion is the conclusive test, provided there can be eliminated all possibility of error caused by pulsation transmitted through contact (as a vein or a nerve made to rise and fall by an artery beating beneath or to one side of it). (2) Veins are recognized by not pulsating (where no Esmarch is used); by having thinner coats; by swelling toward the periphery when compressed cen- trally (no constrictor being used); by being softer and less resisting to touch; by the flat, ribbon-like feeling throughout their whole width when compressed between the fingers; by their purplish color; by their wavy, irregular contour; by their accompanying the arteries, in many regions, in pairs or companion veins; by their larger size than the corresponding arteries; by the ease with which they are compressed. It may be mentioned here, in connection with the companion veins, that two vena? comites are to be found accompanying all arteries below the axilla; all arteries below the knee; most of the small and medium-sized arteries of the trunk; and that the arteries of the head and neck are accompanied by single veins. These veins generally run on either side of the artery, communicating across the artery at frequent intervals, — generally lying in front of and behind the artery when the intermuscular plane enclosing the artery lies anteroposteriorly, — and usually lying to the right and left of the artery when the intermuscular plane runs transversely. (3) Nerves are distinguished by their known position; their white color; their round contour, unyielding consistency, and non-compressibility; their LIGATION OF ARTERIES. 21 appearance of being made up of parallel bundles; their swelling neither proximally, like arteries, nor peripherally, like veins, when compressed (no constrictor being used). (e) Opening the Sheath. — Having identified this structure and brought it well within the field, its wall is to be opened and the contained artery ex- posed — for the purpose of clearing a path for the aneurism-needle (Fig. i). Only the main vessels have a distinct sheath of connective tissue, and the larger the artery, the more distinct the sheath. In some cases the accom- panying vein and nerve are included in a common sheath, together with the artery — the sheath being composed of more or less condensed connective tissue. The smaller arteries are surrounded by a less distinct layer of areolar tissue, generally not demonstrable as a sheath. The sheath should be opened at least 1.3 cm. (h inch) from any branch. With a pair of finely pointed forceps, pick up the sheath where it is desired to pass the ligature, and in such a way as to raise the sheath in a fold parallel with the long axis of the Fig. 1. — Ligation of an Artery. Opening the sheath. A, Retraction of adjacent muscles; B, Toothed forceps raising sheath of artery in a longitudinal fold ; C, Incising sheath in long axis of artery ; D, Artery visible through incised sheath. vessel (Fig. 1, B). Let the forceps pick up the sheath upon its anterior aspect, but slightly to one side of the median longitudinal line, thereby leav- ing space to incise the sheath exactly in the middle line. After grasping the sheath, shift the forceps gently up and down to see that the sheath, held in the bight of the forceps, glides over the contained vessel, proving, thereby, that no part of the artery itself is picked up. This longitudinal fold of the sheath, while held by the forceps and lifted up from the artery, is incised in the long axis of the artery, for a distance of about 6 to 8 mm. (j to § inch) (the shorter the distance of separation of the sheath the better, to pre- serve the vasa vasorum), the flat surface of the knife being turned to the artery (Fig. 1, C). As soon as the incision is made in the sheath, a gap appears between the wall of the artery and the wall of the sheath (Fig. 1 . D). The hold of the forceps upon the wall of the sheath should be retained, not being relaxed after once grasping the fold of sheath. In ligating smaller 22 OPERATIONS UPON THE ARTERIES. arteries, which have no well-defined sheath, the vessel is simply freed of all visible connective tissue. (This axial division of the sheath of the artery is preferable to the transverse division so often advised.) (f) Clearing the Artery. — A path for the passing of the ligature between the outer wall of the artery and the inner wall of the sheath is now to be made, and the best instrument with which to make it is the dull, flat end of a curved aneurism-needle (Fig. 2). Having retained the original hold of the forceps upon the sheath (Fig. 2, B), insinuate the end of the needle between this wall of the sheath and the artery, and while drawing this lip of the sheath gently away from the artery, carefully work the point of the needle around one-half of the circumference of the artery, in the connective-tissue plane between artery and sheath, by a combination of forward movement, on the part of the tip of the needle, with a side to side movement, on the part of the lateral margins of the curved tip, over a distance of from 6 to 8 mm. (\ to | inch) (Fig. 2, C). Having thus cleared a path around half the vessel, and still Fig. 2. — Ligation of an Artery. Clearing the artery. A, A, Retraction of adjacent muscles; B, Forceps grasping nearer lip of sheath ; C, Aneurism-needle clearing artery in its passage between sheath and vessel ; D, Forceps grasping further lip of sheath ; F, Aneurism-needle emerging between artery and further lip of sheath. holding the tip of the needle in the path already cleared, the forceps for the first time relinquishes its hold on the lip of the sheath originally grasped, and grasps the opposite lip of the sheath and similarly draws this part of the sheath away from the artery (Fig. 2, D), at the same time also similarly working the point of the needle onward and from side to side, until it clears a way com- pletely around the artery and appears between the vessel and the further lip of the sheath (Fig. 2, E). Throughout this entire manoeuvre the handle of the needle is held approximately at a right angle to the vessel, and the tip of the needle hugs the wall of the artery, especially while working under its deepest part, particularly where a common sheath contains other structures, and thereby is prevented from penetrating the sheath and injuring the vessels, nerves, or viscera beyond. (g) Passing the Ligature. — Once a passage has been cleared between LIGATION OF ARTERIES. 23 artery and sheath, the aneurism-needle readily traverses it — so that as soon as the needle has appeared on the further side of the artery, it is withdrawn. The needle is now threaded and carefully passed between vessel and sheath, through the previously cleared way, following precisely the same course and carrying out the same steps— first opening the entrance to the passage by drawing the sheath away with forceps — then hugging the vessel in making the circuit — and finally emerging on the opposite side between the vessel and the further lip of the sheath, which the forceps have now grasped and drawn away (Fig. 3, F, B, C). An aneurism-needle may be passed with a fine silk ligature-loop as a carrier, and through this "carrier" the proper ligature may be threaded and drawn back. There is no fixed rule for the direction in which Fig. 3.— Ligation of an Artery. Passing the ligature and tying the knot. A, A, Retraction of neighboring parts; B, Aneurism-needle carrying ligature beneath artery; C, Tenaculum drawing one end of ligature under artery, while aneurism-needle is being withdrawn ; D, Tying the knot; F, Retracting lip of sheath. Fig. 4. — Knot Used in Ligating Medium and Large Arteries. E, Two turns of a fric- tion-knot followed by a reef-knot, constituting a surgeon's knot. the needle should be passed in each case; the rule should be that the needle is to be passed from the more important structures toward the least im- portant, or from the structures more difficult to avoid toward those more easily avoided. Therefore the needle may enter the sheath in the reverse order to that in which it has been freed from the artery, or vice versa, as seems safest and easiest. Having passed the needle completely around the vessel, until its threaded eye protrudes on the opposite side, grasp one of the threads of the looped ligature with forceps or tenaculum, and, while thus held, carefully withdraw the needle, following the curve of the artery (Fig. 3, B, C). Thus a single thread is left beneath the vessel — an end coming out between the artery and sheath on either side. Some surgeons pass 24 OPERATIONS UPON THE ARTERIES. the needle unthreaded, and thread the eye on the opposite side, then, holding one arm of the ligature with forceps, withdraw the needle — with the same result. There is no objection to this method in simple cases where the artery is accessible and the threading easily done with the needle in situ (as in the lower third of the radial), but it should not be attempted in a region where the exposure is difficult (as in the retroperitoneal ligation of the common iliac). Such an instrument as the Cleaveland needle (ligature-carrier) is preferred to the common aneurism-needle by some — the instrument, being passed under the artery empty, grasps the ligature on the opposite side, and draws back one end under the vessel. In arteries too small to have sheaths the ligature is simply carried under and around the artery, which has been freed of all connective tissue, the general method being the same as just described. (h) Tying the Knot. — The largest arteries are most safely and satis- factorily tied with the "stay-knot" of Ballance and Edmunds. The stay- knot of these surgeons is made by con- ducting two or more bundles of soft floss-silk — or two or more pieces of kangaroo-tendon, catgut, silk-worm gut, or plain silk around the artery, parallel with each other and side by side; — the first hitch of a reef-knot is then tied in each bundle, so that two or more knots lie side by side, the force to tie them having been sufficient to closely approximate the inner and middle coats of the artery and completely stop the flow, but •r^s^Ol \ "HA % without rupturing these coats (Fig. 5, A, and Fig. 7). A friction knot is even safer than the first hitch of a reef-knot, as the preliminary step — especially in tying the larger vessels. After tying these at first lightly, they are both taken up together and gently tightened simultaneously. The two or more ends of the bundles are then taken up on the one side, and the two or more ends of the other bundles on the opposite side, — the several bundles on each side now being regarded as one.- — and these two bundles are tied in a single knot, after the manner of the second step of a reef-knot (Fig. 6, B). Thus a knot is formed the first part of which will not slip while the second is being tied (which is apt to be the case in large arteries, especially if they be pulsating at the time, thus allowing the establishment of a small stream of blood). By this method a broad compression and approximation of the arterial coats will be accomplished, which will add strength to the site of ligation against secondary hemorrhage. This simple approximation is sufficient to excite endothelial proliferation and union of the opposed surfaces. It is hard to draw such a ligature tight enough to rupture the inner coats. An artery with its two inner coats ruptured by ligation has only the strength of its outer coat to withstand the strain of the circulation until the secondary phenomena take place, which permanently strengthen the site — prior to which Figs. 5 and 6.— Floss-silk Stay-knot of Ballance and Edmunds. A, First stage; B, Second stage. LIGATION OF ARTERIES. 25 secondary hemorrhage may occur. Several parallel strands of smaller-sized chromic catgut, led under the artery by a carrier, are sometimes used, thus securing width for the ligature and the consequent distribution of pressure. All medium-sized arteries should be tied with a surgeon's knot (a friction-knot followed by the second step of a reef-knot) (Fig. 4, E). All small arteries ^ Fig. 7. — The Stay-knot of Ballance and Edmunds. Showing the first step of tying three kangaroo-tendon liga- tures. Fig. 8. — Showing the Pleating or the Coats or a Ligated Artery in Cross-section. (Modified from Ballance and Edmunds.) Fig. o. — Illustrating the Manner of Suturing the Wound, the Edges of which are put upon the Stretch by YYurND-HOOKS at Either End. Interrupted sutures are shown at one end and continuous suturing at the other end. are safely tied with tne reef-knot alone. In making tension upon the ends of the ligature, special care should be taken not to lift the artery out of its sheath. To avoid this, the tips of the right and left forefingers should come together, end to end, directly upon the knot in the act of being tied, and the tightening should be done by putting the terminal and middle knuckles of the index-fingers in apposition, back to back, and using them as fulcra (Fig. 2 6 OPERATIONS UPON THE ARTERIES. 3, D). The thumbs may be similarly used instead of the forefingers. It is a disputed point as to how much tension should be used in tightening a ligature. It may be said that it is best to tighten the ligature upon all large vessels suffi- ciently to thoroughly approximate their inner wall in pleats, thereby com- pletely closing the lumen, without rupturing their two inner coats (Fig. 8). The same holds true of all diseased vessels, independently of their size. All medium vessels may be similarly ligated. The smaller arteries generally have their ligatures tightened sufficiently to rupture their inner and middle coats. A tightening almost sufficient to sever all coats, especially when using silk, is distinctly to be avoided. Secondary hemorrhage seems less frequent, and the strength of the vessel greater, where the vessels are only constricted enough to closely approximate the two inner coats, without causing their rupture. All knots should be cut comparatively short. A round ligature tightly drawn will rupture the inner coats; a broad ligature will do so far less readily. (i) Closure of Wound. — Where a large, well-marked sheath has been opened in exposing the artery, although not absolutely necessary, it is well to unite the edges of the sheath by one or two fine catgut sutures. Where anv muscle tissue has been incised in order to reach the artery, it is usually best to repair the divided muscle tissue by catgut sutures passed through the lips of the muscle wound — which suture becomes buried in the final steps of the operation. Where deep intermuscular planes have been opened up, and dead spaces are apt to be left, it is advisable to put in a few buried catgut sutures through the muscle tissue, drawing together the muscles into their normal intermuscular cleavage line. Where no muscle has been wounded, — and in the final step of those cases where muscle has been incised and sutured, — complete closure of the wound is accomplished by a line of inter- rupted silkworm-gut or silk sutures, or by a continuous silk suture — the suturing, in either case, being materially aided by putting the wound on the stretch by a wound-hook in either end (Fig. 9). No form of drainage is used in clean cases. A simple gauze and cotton dressing, held in place by a bandage, completes the dressing. (j) After-treatment. — Very little after-treatment is indicated in the ligation of the smaller arteries. Where a large artery is ligated, a splint should be incorporated in the dressing where feasible, in order to control all movement of the part. In the case of the main artery of a limb, the . limb should be encased in cotton, and artificial warmth applied in addition, until the new circulation is established. The limb is elevated in bed to favor venous return. The skin sutures are removed on the seventh or eighth day. A rest in bed of from two to four weeks is required in the ligation of the larger arteries. Local Results of Ligation. — Obliteration of artery at site of ligation. Establishment of a new (collateral) circulation. Chief Dangers in Ligation of Arteries. — Secondary hemorrhage. Gangrene. Comment. — (1) Where it is difficult or impossible to separate one or more veins from the artery, the artery and vein, or veins, may be included in the one ligature. (2) Especial care should be taken to avoid the inclusion of the smallest nerve in the ligature. (3) When a large vein is wounded, the wound should be at once closed by lateral ligature (Fig. 99), or by sutur- ing (Fig. 98), preferably the former. If this be not feasible, the vein should be ligated. All medium and small veins should be ligated if wounded. If the ligation of the artery can be accomplished without the likelihood of LIGATION OF INNOMINATE ARTERY. 27 again wounding the vein, it should be completed at the original site. If there be danger of further complication, a new site should be chosen just above or below the one originally selected. (4) It is held by some that secondary hemorrhage is less likely if an artery be ligated in two places, from 2.5 to 5 cm. (1 to 2 inches) apart, and then divided between these two ligatures, allowing each end to retract — upon the principle that the arteries of the body are constantly under longitudinal tension, and, when ligated in continuity (especially where the inner coats are severed), there are present the conditions calculated to predispose to secondary hemorrhage. Practical experience seems to have borne out the claim of the double ligature with division, but the operation is not always feasible, especially in the deeper, larger vessels. (5) All ligature material should be thoroughly pliable before being used. SURGICAL ANATOMY OF INNOMINATE ARTERY. Description. — Largest branch of arch of aorta. From 3.8 to 5 cm. (lh to 2 inches) in length. Arises from beginning of arch of aorta, opposite fourth dorsal vertebra; runs upward, forward, and to right, to upper border of right sternoclavicular articulation, where it divides into right common carotid and right subclavian. Relations. — Anteriorly: manubrium; origin sternohyoid; origin sterno- thyroid; right sternoclavicular joint; remains of thymus gland; left innominate vein; right inferior thyroid vein; inferior cervical cardiac branches of right pneumogastric. Posteriorly: trachea; right pleura. To right: right in- nominate vein; right pneumogastric nerve; right pleura. To left : left common carotid; remains of thymus gland; left inferior thyroid vein; trachea. Branches. — Thyroidea ima (sometimes) ; thymic branch (sometimes) ; bronchial branch (sometimes). Line of Artery. — From center of manubrium, to center of right sterno- clavicular joint. Indications for Ligation. — Aneurism of right carotid, subclavian, and of innominate itself. Sites of Ligation. — From 1.3 to 2 cm. (h to f inch) below bifurcation (Fig. 10, A, B, C, D, E). Comparison of Methods of Exposure of the Innominate. — Choice would be given to. methods of non-division of muscles, with retraction — the oblique incision thus being preferable to the angular one — where these incisions promise sufficient room for manipulation. Where more room is necessary, especially from abnormal displacement of the parts (as from aneurism), the angular incision, or the methods of partial resection, give more space for the safe carrying-out of the necessary steps; and of these latter, the method of partial resection upon the right aspect of the manubrio-clavicular region is applicable to cases where a more limited sacrifice of bone will suffice; and Bardenheuer's operation — or the splitting of the manubrium — where the maximum space is required. The innominate has also been ligated through a trephine-opening made through the manubrium sterni, after turning back a flap of soft parts. LIGATION OF INNOMINATE ARTERY BY ANGULAR INCISION (MOTT'S OPERATION i. Position. — Patient supine, chest raised, head backward and to opposite side. Surgeon to outer side of shoulder. Assistant opposite surgeon. Landmarks. — Clavicle; sternomastoid muscle; sternoclavicular joint. 28 OPERATIONS UPON THE ARTERIES. Incision. — A-shaped (on right). Horizontal portion of incision is made along upper margin of inner third of clavicle, for a distance of about 7.5 cm. (3 inches). Oblique portion (meeting horizontal at an acute angle) is made along anterior margin of sternomastoid, for about 7.5 cm. (3 inches) (Fig. 10, A). Fig. 10. — Incisions for Ligation of Chief Arteries of Head and Neck :— A, A, Innom- inate, by angular incision; B, B, Same, by oblique incision; C, C, Same, by partial bony resection, through an oblique incision; D, O, Same, by partial buns resection ( Bardenheuer's operation); E, Same, by splitting manubrium; F, Common carotid, above omohyoid; G, Same, below omohyoid; H, External carotid, below digastric ; I, Same, above digastric ; J, Thyroid, at origin ; K. Lingual, at origin; L, Lingual, beneath hyoglossus ; M, Facial, over inferior maxilla; N, Occipital, behind mas- toid process; O, Temporal, just above zygoma ; P, Trunk of middle meningeal, by trephine-opening exposed by curved oblique incision (lower of two trephine-openings); Q, Anterior branch of middle meningeal, by trephine-opening exposed by horseshoe incision (higher of two trephine-openings |; R, Posterior branch of middle meningeal, by trephine-opening exposed by horseshoe incision; S, Internal carotid, near origin ; T, Third part of subclavian ; U, Transversalis colli and suprascapular, at outer margin of sternomastoid ; V, Internal mammary, in second intercostal space ; W, First part of axil- lary, by curved transverse incision below clavicle. LIGATION OF INNOMINATE ARTERY. 2 g Operation. — -Having incised skin and superficial fascia, this triangular flap is dissected upward. Cut the sternal and clavicular attachments of the sternomastoid, as far as exposed. The sternohyoid and sternothvroid muscles are also cut, or are nicked and drawn well inward. Expose, ligate doubly, and cut the anterior jugular vein between its two ligatures, lying beneath the sternomastoid; and also the right inferior thyroid vein. Divide the deep cervical fascia along the original lines of incision, thus exposing the common carotid. Open its sheath and follow to its origin, avoiding the recurrent laryngeal nerve. Thus guided to the innominate, clear its trunk — with especial care on the outer side, of the pneumogastric nerve, right innominate vein, and pleura — and pass the needle from these structures. Fig. ii. — Ligation of the Innominate Artery by an Angular Incision; Also of the Right Common Carotid below the Omohyoid, and of the Vertebral Near its Origin': — A, A, Platysma; B, B, B, B, Sternomastoid; C, C, Sternohyoid; D, D, Sternothyroid; E, Innomin- ate artery bifurcating into subclavian and common carotid; F, Internal jugular vein; G, Pneumo- gastric nerve; H, Vertebral artery; I, Trachea; J, Thyroid gland; K, Right sternoclavicular articulation. Comment. — (I) As the chief source of failure is secondary hemorrhage, the common carotid and vertebral arteries are also tied — being the chief sources through which the recurrent flow occurs. (2) This free section of muscles leaves, by their retraction, a deep gap at the root of the neck for infection and slow filling-up. As much repairing of cut muscle tissue as possible, by suturing, should, therefore, be done in completing the operation. (3) Artificial illumination is desirable in this operation. Collateral Circulation. — First aortic intercostal, with superior inter- costal of subclavian. Upper aortic intercostals, with thoracic branches of axillary and intercostals of internal mammary. Phrenic, with musculo- phrenic of internal mammary. Deep epigastric, with superior epigastric of internal mammary. Free communication of vertebrals and interna] carotids of opposite side, inside of skull. Communication of branches of opposite external carotids in middle line of face and neck. (MacCormac). 3° OPERATIONS UPON THE ARTERIES LIGATION OF INNOMINATE ARTERY BY OBLIQUE INCISION. Position — Landmarks. — As for Mott's operation (page 27). Incision. — Begin at junction of middle and lower thirds of anterior border of right sternomastoid muscle — pass down along the lower third of its anterior margin — thence sweep over upper edge of the episternal notch onto the manubrium sterni (Fig. 10, B, B). Operation. — Incise skin, superficial fascia, platysma, and deep fascia (Fig. 12). Tie anterior jugular vein between two ligatures — also ligate the N Fig. 12. — Ligation of Innominate by Oblique Incision; Also of Right Common Carotid below Omohyoid; Vertebral Near Origin; and Inferior Thyroid Near Origin: — A, Platysma; B, Sternomastoid retracted outward and downward; C, Right sternoclavicular articulation; E, Manubrium sterni; F, Omohyoid; G, Sternohyoid; H, Sternothyroid; I, Thyroid gland; J, Innominate artery dividing into common carotid and subclavian; L, Inferior thyroid; M, Vertebral; N, Right innominate vein, with subclavian and internal jugular; O, Pneumo- gastric; P, Recurrent laryngeal; R, Nerves from loop between communicans and descendens hypoglossi; S, Superficial cervical nerves. transverse branch between the two anterior jugulars, if in the way. Draw the sternomastoid outward — and, if necessary, its inner, sternal portion may be divided. Draw inward the sternohyoid and sternothyroid muscles — and, if necessary, their sternal attachments may be partly or entirely cut. Incise the deep cervical fascia over the carotid sheath. Open the sheath and follow the common carotid behind the sternoclavicular articulation to the subclavian and to the innominate, guarding the recurrent laryngeal nerve behind the common carotid sheath. Ligate the right inferior thyroid vein. Clear the LIGATION OF INNOMINATE ARTERY. 3 1 innominate, avoiding the left innominate vein in front — the right pleura behind — and the right pneumogastric nerve, right innominate vein, and right pleura to the right. Comment. — (i) As above mentioned, under Mott's operation, the common carotid and vertebral arteries should also be tied — which can be done through this incision (2) By this separation and retraction of muscles (or partial division) less damage is done to the parts and less of a cavity is left. LIGATION OF INNOMINATE ARTERY BY PARTIAL BONY RESECTION— THROUGH TRANSVERSE AND VERTICAL INCISIONS— (BARDENHEUER'S OPERATION |. Description. — The following parts are excised through a combined transverse and vertical incision: — the right and left sternoclavicular articula- tions, sternal ends of right and left first ribs, sternal end of right second rib, and upper 2.5 cm. (1 inch) of manubrium — thus exposing the innominate. Position. — As in Mott's operation (page 27). Landmarks. — Suprasternal notch and manubrium; sternal ends of clavicles; inferior margin of thyroid cartilage. Incisions. — (1) Transverse incision — along upper border of sternum and over the surfaces of the inner thirds of both clavicles. (2) Vertical incision — from lower border of larynx, down the median line, and well onto the manubrium sterni (Fig. 10, D, D). Operation. — Carry both incisions through skin, superficial and deep fasciae. In the transverse incision, divide sternomastoids, sternohyoids, and sternothyroids. Subperiosteally resect (with Gigli saw, rongeur, bone- cutting forceps, or chisel) the inner extremities of the left clavicle and left first rib — for about 1.3 cm. (^ inch) of their extent. Having made this exposure of the upper and outer portion of the manubrium upon its left aspect, free, through this approach, the posterior surface of the manubrium subperiosteally. The manubrium is then cut transversely through at a level about 2.5 cm. (1 inch) below its upper border — the division being accom- plished, preferably, by a Gigli saw conducted beneath the bone, between it and the periosteum. The sternal ends of the right clavicle and the right first and second ribs, after having been well cleared, are divided close to the outer margin of the sternum, in the same manner as the manubrium was divided. The mass of bone detached by the above cuts is now removed. The periosteum is then incised in the median line — the inferior thyroid veins ligated — the left innominate vein depressed — the right innominate vein retracted — the right pneumogastric nerve and pleura guarded on the outer side and behind — the innominate artery cleared — and the ligature passed from the pleura and pneumogastric. LIGATION OF INNOMINATE ARTERY BY SPLITTING OF MANUBRIUM STERNI. Description. — The manubrium is exposed by a transverse incision — divided transversely at its junction with the gladiolus — then split vertically at its center — followed by the separation of the two halves of the manubrium 32 OPERATIONS UPON THE ARTERIES. and the exposure of the innominate. Upon completing the operation, the bony parts are returned to their normal positions — with or without suturing of the edges of the vertically divided manubrium into apposition. Position. — Patient supine; shoulders raised; neck prominent. Surgeon to right side. Assistant opposite. Landmarks. — Sternoclavicular articulations; lower border of manubrium (marked by line extending transversely across between the articulations of the second ribs). Incision. — Curved transverse incision — passing from inner third of anterior surface of one clavicle to the inner third of the anterior surface of the opposite clavicle, and passing down over the manubrium to the junction of its upper and middle thirds (Fig. 10, E). Operation. — Having incised skin, fascia, and anterior borders of the platysma down to the bone, clamp and tie all bleeding vessels. Free the manubrium subperiosteally over its anterior surface, downward to the junc- tion of the manubrium and gladiolus, and upward to its superior border. Follow the superior border backward and downward along its posterior aspect — also freeing this surface subperiosteally as far as the junction of manu- brium and gladiolus. Retract the overlying soft parts on the anterior aspect of the manubrium and divide the sternum along the manubrio-gladiolar junction — accomplishing the division with a Gigli saw, if one can be conducted across beneath the bone, or by bone-cutting forceps. Through the opening thus made by the transverse division, carry a Gigli saw from the center of the lower border of the divided manubrium to the center of the suprasternal notch — and divide the manubrium vertically in its center, cutting from the manubrio-gladiolar junction upward toward the free superior border — the Gigli saw traveling between the posterior surface of the manubrium in front, and its periosteum posteriorly. After the completion of the vertical section, retract the two halves of the manubrium laterally — incise the posterior perios- teum — ligate the inferior thyroid veins — depress the left innominate vein, retract the right innominate vein — guard the right pneumogastric and pleura externally and posteriorly — clear the innominate — and pass the ligature from the pleura and pneumogastric. Comment. — Where it is wished to suture together the vertical borders of the split manubrium, two or three holes should be drilled on each side as soon as the manubrium has been exposed anteriorly and posteriorly, and before its division — the soft parts below being protected by some thin, flat metallic instrument during the drilling. SURGICAL ANATOMY OF COMMON CAROTID ARTERIES. Description.— (a) Right Common Carotid : About 9.5 cm. (3I inches) in length. Arises from bifurcation of innominate, behind right sternoclavicular articulation — passes upward and outward and slightly backward to upper border of thyroid cartilage (opposite fourth cervical vertebra, according to Morris; — third cervical vertebra, according to Gray) — there dividing into ex- ternal and internal carotids. In its course it is contained within a common sheath of connective tissue, which also includes internal jugular vein and pneumogastric nerve, each separated by a fibrous septum — the vein lying to outer side and slightly overlapping artery, and the pneumogastric lying between and posterior to both. The omohyoid muscle crosses common SURGICAL ANATOMY OF COMMON CAROTID ARTERIES. 3$ carotid opposite lower border of cricoid cartilage, and divides the artery, surgically, into a lower part, deeply placed^and an upper part, superfici- ally placed, (b) Left Common Carotid: About n. 5 cm. (4^ inches) in length. Arises from middle of transverse portion of arch of aorta — ascends upward and outward behind, but at some distance from, manubrium sterni, overlapped by left lung and pleura, and in front of trachea, to left sterno- clavicular articulation — whence its course, relations, and terminations are same as for right common carotid. The crossing and relations of the omo- hyoid muscle are also similar. Relations. — (a) Left Common Carotid in Thorax : Anteriorly — manubrium sterni; origin sternohyoid; origin sternothyroid (above three structures being at some distance); remains of thymus; fatty areolar tissue of superior mediastinum; left innominate vein. Posteriorly (from below upward) — trachea; esophagus; thoracic duct; recurrent laryngeal nerve. External (to left) — left pleura and lung (slightly overlapping); left pneumo- gastric; left subclavian (both of latter being somewhat posterior). Internally (to right) — innominate artery; trachea; remains of thymus gland; left inferior thyroid vein, (b) Both Common Carotids in Neck: Anteriorly — skin; superficial fascia; platysma; deep fascia; sternomastoid; sternohyoid; sternothyroid; omohyoid; anterior jugular vein; thyroid body (often overlaps); middle thyroid vein; superior thyroid vein; lingual vein; facial vein; middle sternomastoid artery; descendens hypoglossi nerve (generally upon, some- times within, sheath); communicantes hypoglossi; lymphatic glands. Poste- riorly — pneumogastric nerve; sympathetic nerve; cervical cardiac branches of sympathetic and pneumogastric nerves; recurrent laryngeal nerve; inferior thyroid artery; longus colli; rectus capitis anticus major. Externally — internal jugular vein; pneumogastric nerve. (On right side a space is left at root of neck by divergence of vein, in which pneumogastric nerve and vertebral artery are found; on left side the internal jugular vein overlaps this space). Internally (from below upward) — trachea; esophagus; re- current laryngeal nerve; branches of inferior thyroid artery; lateral lobe of thyroid body; cricoid cartilage; thyroid cartilage; lower part of pharynx; carotid glands. Branches. — None, ordinarily. Line. — (With head turned moderately to opposite side and upward) — from sternoclavicular articulation to a point midway between angle of jaw and tip of mastoid process — that portion of this line between the sterno- clavicular articulation and the level of the upper border of the thyroid cartilage representing the common carotid. From the clavicle a little external to the sternoclavicular articulation would more accurately represent the line. The anterior margin of the sternomastoid muscle overlaps the carotid throughout. The omohyoid muscle crosses the carotid opposite and directly over Chas- saignac's "carotid tubercle" (costal process of sixth cervical vertebra) — which is about 6.3 cm. (2^ inches) above the clavicle. Indications for Ligation. — Wounds of itself and branches of external and internal carotid; distal and proximal aneurism; distal angiomata; as a temporary ligature; to limit growth of inoperable tumors; hemorrhage from areas supplied by distal branches. Sites of Ligation. — Above the omohyoid muscle — place of election. Below the omohyoid — depth of artery and nature of relations make the operation more difficult and more fatal (Fig. 10, F and G). 3 34 OPERATIONS UPON THE ARTERIES. Fig. 13. — Ligation of Right Common Carotid above Omohyoid: — A, A Platysma ; B, Ster- nomastoid (retracted outward I ; C, Omohyoid 1 retracted downward I ; D, Sternothyroid; E, Common carotid (its sheath incised above omohyoid); F, Sternomastoid artery; G, Internal jugular vein; H, Superior thyroid vein; I, Inferior thyroid vein; J, Communicating vein between anterior and external jugular ; K, One of transversalis colli nerves ; L, Nerves from loop between descendens and communicans hypoglossi. LIGATION OF COMMON CAROTID ARTERY ABOVE THE OMOHYOID MUSCLE. Position.— Patient supine; shoulders elevated; neck prominent; chin upward and to opposite side. Surgeon on side of operation, or on the right for both sides. Landmarks. — Line of artery; anterior border of sternomastoid; cricoid cartilage. Incision. — About 7.5 cm. (3 inches) in length, with center at level of cricoid cartilage — the incision lying in the line of the artery (Fig. 10, F). Operation. — Incise skin, superficial fascia, and platysma. Superficial veins connecting anterior and external jugulars, and sometimes intercom- municating veins between facial and anterior jugular, as well as cutaneous nerves, are encountered (Fig. 13). Divide the deep fascia along the anterior border of the sternomastoid and open up the cellular tissue. The upper border of the omohyoid is here exposed, either by direct incision or by follow- ing up the anterior border of the sternomastoid. Having identified the intersection of sternomastoid and omohyoid, the omohyoid is retracted downward (or may be divided if in the way) — and the sternomastoid outward. Flexing the chin aids during these manipulations, by relaxing the parts. The common carotid is now located as it crosses the "carotid tubercle" (see Anatomy, "Line," page 33). Clear its sheath, avoiding or tying the sternomastoid artery and the superior and middle thyroid veins. Carefully incise the sheath, approaching from the inner side, to avoid the descendens LIGATION OF COMMON CAROTID ARTERY. 35 hypoglossi nerve (generally on the antero-external side of the sheath) and the internal jugular vein, and see that artery is freed from its sheath in its entire circumference. Pass the needle from the internal jugular and pneu- mogastric nerve. Collateral Circulation. — Inferior thyroid, with superior thyroid. Deep cervical, with occipital. Transversalis colli, with occipital. Branches of two vertebrals, with branches of two external carotids. Circle of Willis. LIGATION OF COMMON CAROTID ARTERY BELOW THE OMOHVOID MUSCLE. Position — Landmarks. — As in the ligation above the omohyoid. Incision. —About 7.5 cm. (3 inches) in length, in line of artery — from just below cricoid cartilage to just above sternoclavicular articulation (Fig. 10, G). Fig. 14. — Cross-section of the Neck at the Level of the Seventh Cervical Ver- tebra: — A, A, Scaleni muscles; B, B, Sternocleidomastoid muscles; C, C, Sternohyoid and sternothyroid muscles; D, D, Common carotid arteries and internal jugular veins; E, E, Vertebral arteries and veins; F, F, Inferior thyroid arteries and veins. (Modified from Braune.) Operation. — Incise skin, superficial fascia, and platysma. Here are encountered the superficial veins between the facial, anterior and external jugular veins, and the cutaneous cervical nerves. Divide the deep fascia along the anterior border of the sternomastoid. Expose the inner border of this muscle, flexing the head to relax the parts. The sternohyoid is then exposed, and sometimes the underlying sternothyroid. The omohyoid is, 36 OPERATIONS UPON THE ARTERIES. ordinarily, not brought into the field of operation. These muscles, if en- countered, are retracted in their respective directions, or may be divided as far as necessary. Tie the inferior thyroid veins. The sheath is to be exposed as, and with the precautions, mentioned in the above operation. The recurrent laryngeal nerve and the inferior thyroid artery are to be espe- cially guarded in operating at this site. Comment. — The ligation of the common carotid is more difficult on the left side, owing to the nearness of the internal jugular vein (see Anatomy, "Relations," page 32), and the operation is less frequently done than on the right side. SURGICAL ANATOMY OF EXTERNAL CAROTID ARTERY. Description.— The smaller of the two divisions of the common carotid. About 6.3 cm. {t.\ inches) in length. Begins opposite upper border of thyroid cartilage; passes upward, forward, and then backward, under the stylohyoid and posterior belly of the digastric, to the interval between neck of condyle of inferior maxilla and the external auditory meatus, where it divides, in the substance of the parotid gland, into the internal maxillary and temporal arteries. Relations. — Anteriorly: skin; superficial fascia; platysma; deep fascia; anterior border of sternomastoid; hypoglossal nerve; lingual vein, facial vein; posterior belly of digastric; stylohyoid; temporomaxillary vein; superior cervical lymphatic glands; branches of facial nerve; parotid gland. Poste- riorly: internal carotid artery; styloglossus; stylopharyngeus; glossopharyn- geal nerve; pharyngeal branch of pneumogastric; stylohyoid ligament; parotid gland; superior laryngeal nerve. Externally: internal carotid artery. In- ternally: hyoid bone; pharynx; ramus of inferior maxilla; stylomaxillary ligament; submaxillary gland; parotid gland. Branches (from below). — Ascending pharyngeal; superior thyroid; lingual; facial; occipital; posterior auricular; temporal; internal maxillary. Line. — Upper part of line of common carotid artery (page 33). Indications for Ligation. — Wounds and aneurism of trunk and branches; hemorrhage from areas of branches; palliative in malignant growths; pre- liminary to operations; aneurism by anastomosis in the regions of the trunks. Sites of Ligation. — Below the digastric (between the superior thyroid and lingual branches) — place of election — the operation is easier and more branches are thus controlled. Above the digastric — the operation is more difficult and more apt to involve branches of the facial nerve. Note: — The digastric muscle crosses the artery about 3.2 cm. (\\ inches) above its origin, opposite the upper border of the thyroid cartilage. The lingual arises oppo- site the great cornu of the hyoid bone. (Fig. 10, H and I.) Comment. — (1) The external carotid may be distinguished from the in- ternal carotid by the presence of its branches and by being to the inner side of the external carotid. (2) The ligation of the external carotid is now generally done where formerly the common carotid was ligated for conditions of the former vessel and its branches — the practicability and desirability of the operation having been demonstrated by the work of Wyeth. LIGATION OF EXTERNAL CAROTID ARTERY. 37 LIGATION OF EXTERNAL CAROTID ARTERY BELOW THE DIGASTRIC MUSCLE. Position. — As for the common carotid (page 34). Landmarks. — Sternomastoid; thyroid cartilage; angle of jaw. Incision. — About 7.5 cm. (3 inches) — along the anterior border of the sternomastoid, or slightly in front of border — from level of middle of thyroid cartilage, to near angle of jaw (Fig. 10, H). Operation. — Incise skin, superficial fascia, and platysma (Fig. 15). Tie any veins which may lie in the line of incision. Divide the deep fascia and expose the anterior border of the sternomastoid and draw it outward. Find Fig. 15.— Ligation of Right External Carotid below Digastric ; and also of Internal Carotid, Superior Thyroid, Lingual, Facial and Occipital, near Origin:— A, Superficial fascia; B, B, Platysma ; C, Cervical fascia ; D, Sternomastoid (retracted outward); E, Posterior belly of digastric; F, Hyoglossus, with lingual artery disappearing beneath it; G, Thyrohyoid M. ; H, Middle constrictor M. ; I, Inferior constrictor M. ; J, Tip of great cornu of hyoid bone ; K External carotid A.; L, Internal carotid; M, Superior thyroid; X, Facial; O, Occipital; P. Internal jugular V. ; Q, Lingual and facial veins emptying into internal jugular; R. Superior thyroid V.; S, Hypo- glossal N. ; T, Descendens noni N. the posterior belly of the digastric at the upper angle of the wound. Next, locate the hypoglossal nerve crossing the external carotid below the origin of the occipital artery. Locate the tip of the great cornu of the hyoid bone, opposite which the lingual artery arises. Having fixed the location of these three structures, and avoiding the superior thyroid, facial, and lingual veins; expose the artery opposite the tip of the great cornu of the hyoid. Clear the sheath and pass the ligature between the superior thyroid and lingual branches — guarding the descendens hypoglossi nerve in front, and the supe- rior laryngeal nerve passing behind the artery — directing the needle from the internal carotid. 38 OPERATIONS UPON THE ARTERIES. Comment. — (1) The operation is not an easy one, and it is often difficult to recognize the branches. (2) Jacobson advises simultaneous ligation of the superior thyroid, the lingual, and, if possible, the ascending pharyngeal branches — on account of secondary hemorrhage. (3) Through this same incision the superior thyroid, lingual, facial, occipital, and ascending pharyn- geal may be ligated. Collateral Circulation. — Same as for the ligation of the common carotid above the omohyoid (page 34). LIGATION OF EXTERNAL CAROTID ARTERY ABOVE DIGASTRIC MUSCLE AND BEHIND RAMI'S OF JAW. Position. — As for the common carotid. Landmarks. — Line of artery; ramus of inferior maxilla. Incision. — From tragus of ear, to below angle of inferior maxilla, and placed just behind the ramus of the jaw, in the line of the artery (Fig. 10, I). Operation. — Incise skin and superficial fascia. Avoid, or doubly ligate and incise, the tributaries of the external jugular and facial veins. Divide the deep fascia. Expose the anterior border of the sternomastoid and retract outward. Expose the posterior belly of the digastric and stylohyoid and draw downward — partially or entirely dividing them if necessary. Avoid the branches of the facial nerve. Expose the parotid gland and draw upward and forward — thus exposing the vessel. Clear the artery and open its sheath — and pass the ligature around the artery prior to its entrance into the sub- stance of the parotid gland. Repair, by suturing, whatever muscles may have been incised. SURGICAL ANATOMY OF LINGUAL BRANCH OF EXTERNAL CAROTID. Description. — The third in order, and an anterior branch of the external carotid. Arises opposite, or a little below, the great cornu of the hyoid bone, about 2 cm. (| inch) above the bifurcation of the common carotid, (a) First or Oblique Portion: — lies in superior carotid triangle, extending obliquely upward to the external border of the hyoglossus, — being covered by skin, superficial fascia, piatysma, deep fascia, and hypoglossal nerve, — and resting on the middle constrictor and laryngeal nerve, (b) Second or Horizontal Portion: — lies in the digastric triangle, running horizontally beneath the hyo- glossus muscle, along the superior border of the hyoid bone, — being covered by the hyoglossus muscle (which separates the artery from the hypoglossal nerve, posterior belly of the digastric, stylohyoid muscle, and lingual vein), — and resting upon the middle constrictor of the pharynx and geniohyo- glossus. (c) Third or Ascending Portion: — ascends between the hyoglossus and geniohyoglossus to the inferior surface of the tongue, (d) Fourth or Terminal Portion: — runs forward to tip of tongue, lying between the lingualis and geniohyoglossus, and covered only by mucous membrane. Two venae comites accompany the lingual artery beneath the hyoglossus. The ranine vein runs on the superficial surface of the hyoglossus, below the hypoglossal nerve. Several veins follow the dorsalis linguae artery. Sites of Ligature. — Its first or second portions are the parts usually tied — and of these, the second is preferable (Fig. 10, K and L). LIGATION OF LINGUAL BRANCH OF EXTERNAL CAROTID. 39 LIGATION OF LINGUAL BRANCH OF EXTERNAL CAROTID NEAR ITS ORIGIN. Position — Landmarks. — As for ligation of external carotid below the digastric (page 35). Incision. — In line of external carotid, with its center opposite the body of the hyoid bone (Fig. 10, K). Operation. — Same, practically, as for ligation of external carotid below the digastric, the main vessel being first exposed and the origin of the lingual then located. Comment. — The first part of the lingual may also be tied, though less readily, by a transverse incision extending from the level of the body of the hyoid bone to the anterior border of the sternomastoid, the artery being exposed and tied just before passing under the hyoglossus muscle. LIGATION OF LINGUAL BRANCH OF EXTERNAL CAROTID BENEATH THE HVOGLOSSUS. Position. — Patient supine; shoulders raised; neck prominent; head to opposite side and chin upward. Surgeon on side of operation, cutting from before backward on the right, and vice versa. _ M E Fig. 16. — Ligation of Right Lingual Artery beneath Hyoglossus: — A, A, Platysma; B, Transverse cervical fascia over submaxillary gland; C, Deep transverse cervical fascia under submaxillary gland; D, Submaxillary gland; E, Hyoid bone; F, Anterior belly of digastric; G, Posterior belly of digastric; H, Stylohyoid; I, Mylohyoid; J, Hyoglossus; K, Omohyoid; L, Thyrohyoid; M, Lingual artery see'n through incision in hyoglossus; N, Submental A.; O, Tributary of temporomaxillary V.; P, Tributary of anterior jugular V.; Q, Ranine V. (below); R, Transverse cervical nerve;' S, Superior laryngeal nerve and vessels; T, Hypoglossal N. 40 OPERATIONS UPON THE ARTERIES. Landmarks. — Lower border of inferior maxilla; facial artery crossing inferior maxilla; hyoid bone. Incision. — Curved incision — beginning just below and external to sym- physis menti — and ending just below and internal to crossing of facial artery over inferior maxilla — its center being just above the greater cornu of the hyoid bone (Fig. 10, L). Operation. — Incise skin, superficial fascia, platysma, and deep fascia. Avoid or ligate tributaries of facial, anterior jugular, or temporomaxillary veins. Incise the transverse cervical fascia over the submaxillary gland — exposing the gland and retracting it upward, out of its bed, over the margin of the lower jaw (Fig. 16). Incise transversely the deep cervical fascia exposed by lifting out the submaxillary gland — and identify the mylohyoid muscle in the anterior aspect of the wound. Expose the two bellies of the digastric and firmly retract them downward at their point of attachment to the hyoid bone — which steadies the parts and renders the hyoglossus more prominent. Clear the surface of the hyoglossus and identify the hypoglossal nerve crossing its anterior aspect. The ranine vein crosses the same surface just below and parallel with the nerve and at about the same level as the artery lies on the opposite side of the muscle. Retract both hypoglossal nerve and ranine vein upward. Divide the hyoglossus transversely for about 1.3 cm. (| inch) just above and parallel with the hyoid bone. This incision falls just over the artery, which generally bulges into the opening as soon as it is made, or through which it is easily reached. Having isolated the artery, trace it backward until the dorsalis linguae branch is reached, so that the ligature may be placed upon its proximal side. Having passed the ligature, replace the submaxillary gland and close the wound. Comment. — The fascia of the submaxillary gland may be sutured over it, and the incision in the hyoglossus may be repaired by suturing, if either be considered indicated. SURGICAL ANATOMY OF FACIAL BRANCH OF EXTERNAL CAROTID. Description. — The fourth in order, and an anterior branch of the ex- ternal carotid. The Cervical Portion passes upward and forward in the posterior part of submaxillary triangle, under the digastric, stylohyoid, submaxillary gland, and horizontal ramus of inferior maxilla. The Facial Portion curves over lower border of inferior maxilla at the anterior border of masseter muscle — and, running forward and upward, crosses the cheek to the angle of mouth — thence upward along side of nose to end at internal canthus of eye. Relations. — Cervical portion rests on (from below upward) stylo- glossus; mylohyoid; submaxillary gland (in or under it); — and is covered by (from below upward) posterior belly of digastric; stylohyoid; hypoglossal nerve (generally); submaxillary gland (beneath or in its substance); inferior maxilla; lymphatic glands; fascia; platysma; skin. Facial portion rests on (from below upward) inferior maxilla; buccinator; levator anguli oris; levator labii superioris (sometimes); infraorbital branches of fifth nerve; — and is covered by (from below upward) risorius; zygomatici major and minor; supramaxillary and buccal branches of facial nerve; levator labii superioris; levator labii superioris alaeque nasi; infraorbital branches of facial- The cervical portion of the facial vein is more direct than the artery, and separated LIGATION OF FACIAL BRANCH OF EXTERNAL CAROTID. 41 from it by submaxillary gland, posterior belly of digastric, stylohyoid muscle, and hypoglossal nerve. The facial portion of the facial vein is also more direct than the facial portion of the facial artery, and is separated from its arterv by the zygomatic] major and minor. Sites of Ligation. — Near origin (less frequently), — over lower jaw (the usual selection) (Fig. 10, M). LIGATION OF FACIAL BRANCH OF EXTERNAL CAROTID NEAR ORIGIN. Position — Landmarks — Incision — Operation. — Practically the same as for ligation of the external carotid below the digastric. LIGATION OF FACIAL BRANCH OF EXTERNAL CAROTID OVER INFERIOR MAXILLA. Position. — Patient supine; shoulders raised; head thrown back and to opposite side. Surgeon on side of operation, or on right for both sides. Landmarks. — Anterior margin of masseter muscle; horizontal portion of inferior maxilla. Fig. 17. — Ligation of Right Facial over Border of Inferior Maxilla: — A, Cervical fascia; B, Platysma ; C, Deep cervical fascia; D, Submaxillary gland; E, Mylohyoid muscle; F. Inferior maxilla ; G, Masseter M. ; H, Depressor anguli oris ; I, Facial A.; J, Facial V. ; K, Submen- tal A. ; L, Supramaxillai y N. Incision. — About 2.5 cm. (1 inch) in length — placed along and under cover of lower border of lower jaw, with its center over the course of the artery (at the anterior margin of the masseter muscle) (Fig. 10, M). Operation. — Incise skin, superficial fascia, platysma, and deep fascia, when the artery should come into view — with the facial vein just posterior to it. Avoid branches of the facial nerve (Fig. 17). 42 OPERATIONS UPON THE ARTERIES. SURGICAL ANATOMY OF OCCIPITAL BRANCH OF EXTERNAL CAROTID. Description. — The fifth in order, and a posterior branch of the external carotid — passing upward and backward to the interval between mastoid process of temporal and transverse process of atlas — thence horizontally backward in the occipital groove — thence upward onto the scalp. Relations. — First Part (internal to sternomastoid) — covered by skin, fascia, posterior belly of digastric; parotid gland; temporomaxillary vein; hypoglossal nerve; — and rests on internal carotid artery; hypoglossal nerve; pneumogastric nerve; internal jugular vein, and spinal accessory nerve. Second Part (beneath sternomastoid) — covered by sternomastoid; splenius capitis; trachelomastoid; origin of digastric; — and rests on capitis lateralis, in occipital groove of mastoid process of temporal, and on the insertion of superior oblique muscle. Third Part (external to sternomastoid) — covered by skin, aponeurosis uniting occipital attachments of sternomastoid and trapezius — and resting upon the complexus. It perforates this aponeurosis just mentioned, or the posterior belly itself of the occipitofrontalis, together with the great occipital nerve — and follows, roughly, the line of the lambdoid suture, between the integument and the cranial aponeurosis. Two venae comites accompany the occipital artery. Sites of Ligation. — Near its origin — and behind the mastoid process of the temporal — according to site of lesion requiring ligature (Fig. 10, N). LIGATION OF OCCIPITAL BRANCH OF EXTERNAL CAROTID NEAR ORIGIN. Position — Landmarks — Incision — Operation. — As for ligation of the external carotid below the digastric (page 35). LIGATION OF OCCIPITAL BRANCH OF EXTERNAL CAROTID BEHIND MASTOID PROCESS. Position. — Patient supine; shoulders and head elevated; head turned well to opposite side (or patient resting slightly to one side). Surgeon stands behind, on side of operation. Landmarks. — Mastoid process; external occipital protuberance. Incision. — About 5 cm. (2 inches) in length — beginning from tip of mastoid process and extending toward the external occipital protuberance (Fig. 10, N). Operation. — Having incised skin and fascia, divide the posterior half of the sternomastoid and its strong aponeurosis — then the splenius capitis — then as many fibers of the trachelomastoid as are in the way (Fig. 18). Relax and retract the muscles by turning the head to the side of the operation. Expose the artery deep down between the mastoid process of the temporal and the transverse process of the atlas, resting upon the superior oblique and complexus muscles. Having separated from it the accompanying veins, and having guarded the veins from the mastoid foramen, the ligature is passed. The lesser occipital nerve runs on the posterior surface of the sterno- LIGATION OF TEMPORAL BRANCH OF EXTERNAL CAROTID. 43 Fig. 18. — Ligation of Left Occipital Artery behind Mastoid Process: — \, Posterior cervical fascia; B, Trapezius muscle; C, Sternomastoid; D, Splenius capitis; E, Trachelomastoid; F, Occipital artery and vena comites, lying upon complexus muscle; G, Great occipital nerve; H, Lesser occipital nerve; I, Posterior external jugular vein. mastoid, near its posterior border, and the great occipital nerve pierces the trapezius muscle near its outer border. SURGICAL ANATOMY OF TEMPORAL BRANCH OF EXTERNAL CAROTID. Description. — The seventh in order and the smaller but more direct of the two terminal branches of the external carotid. Arises in substance of parotid gland, opposite neck of inferior maxilla — and runs upward, beneath parotid gland, between condyle and external auditory meatus — thence upward, crossing the posterior root of the zygoma — and continuing upward under the attrahens aurem muscle and temporal aponeurosis for 3.8 cm. to 5 cm. (1^ to 2 inches), where it divides into anterior and posterior branches. A plexus of sympathetic nerves surrounds the vessel — -it is crossed by the temporofacial division of the facial nerve — and is accompanied by the auriculotemporal nerve. Sites of Ligation. — The main trunk may be ligated just above root of zygoma. The anterior and posterior branches may be ligated at their bifurca- tion, about 3.8 to 5 cm. (1^ to 2 inches) above the zygoma . LIGATION OF TEMPORAL BRANCH OF EXTERNAL CAROTID JUST ABOVE ZYGOMA. Position. — Patient supine; shoulders raised; head to opposite side. Surgeon on side of operation, cutting from above downward on right, and vice versa (or on right for both operations, cutting from above downward). Landmarks. — Tragus of ear; condyle of jaw; zygoma. 44 OPERATIONS UPON THE ARTERIES. Incision. — Vertical, about 2.5 to 3.8 cm. (1 to i\ inches) in length, over line of artery, with center over zygoma, and extending downward in the interval between the tragus of the ear and the condyle of the lower jaw (Fig. 10, O). Operation. — Incise skin and dense subcutaneous tissue and parotid fascia — when the artery will be exposed lying quite superficial as it crosses the zygoma. Avoid the accompanying vein posteriorly — also avoid the branches of the temporofacial division of the facial nerve and the auriculo- temporal nerve (Fig. 19). Fig. 19. — Ligation ok Right Temporal Just above Zygoma :— A, Temporal artery, with its anterior and posterior bifurcations, and its transverse facial, middle temporal, and anterior auricular branches; B, Temporal vein, with branches corresponding to those of artery ; C, Temporal branches of auriculotemporal nerve ; D, Branch of temporofacial division of facial nerve ; E, Temporal fascia. SURGICAL ANATOMY OF MIDDLE MENINGEAL BRANCH OF INTERNAL MAXILLARY BRANCH OF EXTERNAL CAROTID. Description. — The largest branch of the first or Maxillary Portion of the internal maxillary. Arises between internal lateral ligament and neck of inferior maxilla — and, under cover of external pterygoid, passes upward between the two roots of the auriculotemporal nerve to the foramen spinosum, being crossed by the chorda tympani nerve. It enters the skull through this foramen and ascends in the groove on the great wing of the sphenoid, where it divides into anterior and posterior branches which ramify between the bone and the dura. The point of bifurcation is generally given by anato- mists as corresponding, on the exterior of the skull, with a point 3.8 cm. (1^ inches) behind the external angular process of the frontal bone, and 3.8 to 4.5 cm. (1^ to if inches) above the zygoma. The Anterior Branch runs in a groove on the great ala of the sphenoid and the anterior inferior angle of the parietal. The Posterior Branch crosses the squamous portion of the temporal and then enters the groove on the posterior inferior angle of the parietal bone. In the young these measurements are less. Indications for Ligation. — Intracranial hemorrhage. Sites of Ligation. — The common trunk, or the anterior or posterior branch, as indicated (Fig. 10, P, Q, R). Note. — Because of the practical surgical bearing of the middle meningeal artery and its branches, and because of the wide variations from each other SURGICAL ANATOMY OF MIDDLE MENINGEAL ARTERY. 45 in the descriptions of the intracranial portion of the middle meningeal artery and its branches in various anatomies, and because of the equally wide variations of the artery and its branches, as actually found in the skull, from the text-book descriptions, — the following summary is given of the out- come of special research upon the subject made upon fifty dried skulls and thirty cadavera (representing 160, upon the two sides) by S. C. Plummer. In the following data it is to be remembered that, owing to beveling, the lower part of the coronal suture is 5 mm. to 1 cm. (y 3 ^- to f inch) more pos- terior on the inner than outer side of skull, and that the squamoparietal suture is from 1 to 1.5 cm. (f to § inch) lower on the inner than the outer side. Covering of Artery. — Instead of lying between dura and bone (as generally understood) the artery is really covered by a thin process of dura on its outer surface; hence its adherence to the dura in separation of the latter from the bone. Trunk of Middle Meningeal Artery, — (1) Present in 95 per cent. In 50 per cent., anterior and posterior branches entered separately, or the trunk divided at the foramen spinosum. (2) Point of Division into Anterior and Posterior Branches: — 2 mm. to 5.5 cm. (little more than y 1 ^ to 2^ inches) from foramen spinosum in a direct line — (less than 1 cm. or T 7 g- inch) in 16 cases — between 1 and 3 cm. (y 7 ^ and iy\ inches) in 60 cases — over 3 cm. (iy\ ; - inches) in 19 cases. Bifurcation was 58 times upon squamous part of temporal — 21 upon sphenoid — 15 upon squamosphenoidal suture — once on sphenoparietal suture. (Steiner, another investigator, found a common trunk present in only 43 per cent. — and found that bifurcation occurred in 57 per cent, at the foramen spinosum.) (3) Length: — corresponds with point of bifurcation, when point of bifurcation is not more than 2 cm. (f inch) above the foramen spinosum, — and from 1 mm. to 1.2 cm. (-^ to ^ inch) greater when the point of bifurcation is more than 2 cm. (f inch) above the foramen spinosum (due to curve in artery). (In Steiner's cases the length was from 1 to 3.5 cm., or § to if inches, in 43 cases — and from 3.5 to 5 cm., or if to 2 inches, in 8 cases.) (4) Direction: — almost invariably outward — and more frequently outward and forward than outward and backward. Generallv runs outward for 2 mm. to 1.7 cm. (little more than T X g- to J inch) and thence outward and forward — running in a gentle curve. (5) Location: — almost always runs from foramen spinosum onto the temporal (sometimes first runs onto the sphenoid, or squamosphenoidal suture) — generally running from 5 mm. to 1 cm. ( T 3 g- to § inch) posterior to the squamosphenoidal suture; thence a long trunk generally runs onto the squamosphenoidal suture — and then onto the great wing of the sphenoid. Anterior Branch of Middle Meningeal Artery. — (1) Relative Size: — Generally the main branch and larger than the posterior. (2) Direction and Location: — Beginning at point at which lowest bifurcation occurs (v. s.), the anterior branch, after bifurcating on the squamous, squamosphenoidal suture, sphenoid, or on the sphenoparietal suture, as the case may be, passes forward and upward across the anterior and lower part of the squamous; — thence almost invariably crosses the upper part of the great wing of the sphenoid; — thence passes backward across the sphenoparietal suture onto the parietal — and runs thence generally upward and backward about parallel with the coronal suture, and generally within 2 mm. to 3 cm. (little more than y 1 ^ to iy 3 ^ inches) of it. Practically, the most constant position of the anterior branch is where it crosses the sphenoparietal suture — the cross- 46 OPERATIONS UPON THE ARTERIES. ing may be at any part of its 1.5 cm. (nearly § inch) length, but is usually on its anterior half. (3) As to Branches of Anterior Branch: — The anterior branch did not divide in 44 per cent. In the 56 per cent, in which it did divide, it divided 25 times on the right and 31 on the left. There were 2 branches in 49 cases — 3 branches in 5 cases — 4 branches in 2 cases; — and these divisions occurred 51 times on the parietal, 3 times on the sphenoparietal suture, and 2 times on the sphenoid. Kroenlein considers that the anterior branch, in the average case, divides into two branches, one of which runs up in front and one behind the rolandic fissure. Where the anterior branch divides into branches, one branch generally runs parallel with and within 2 cm. (f inch) of the coronal suture. (4) Bony Canal: — In from 38 per cent. (Steiner) to 60 per cent. (Plummer), the anterior branch was found to run through a bony canal upon the anterior inferior angle of the parietal bone — the canal sometimes beginning upon the sphenoid — being from 3 mm. to 2.S cm. (| to i£ incr.es) Ions;. Posterior Branch of Middle Meningeal Artery. — (1) Much less con- stant in size and position than anterior branch. Generally smaller — often appearing as, and mistaken for, a branch of the anterior branch. Some- times appears to be a continuation of the trunk and larger than the anterior — and sometimes is larger without appearing to be main trunk. (2) Direction: — At first outward and backward, or upward and backward — rarely directly backward. Subsequently, in majority of cases, it passes horizontally backward — exceptionally, downward and backward. (3) Location: — (a) In Majority of Cases: — it runs approximately parallel with squamoparietal suture, gener- ally within 1 cm. (f inch), never more than 2 cm. (f inch) from it — gradually approaching it — crossing it (unless its terminal branches are given off on the temporal bone) generally within 2 cm. (f inch) of its posterior end, passing thence onto the parietal bone — its small branches running onto the occipital, (It may at first run parallel with the squamosphenoidal suture. It may cross the squamoparietal suture onto the parietal bone at any point.) (b) In Other Cases: — sometimes it runs outward and backward over the squamo- petrosal suture, or upon the squamous parallel with and generally within 1 cm. of the squamopetrosal suture — passing back over the base of the petrous bone, crossing the squamoparietal suture near its posterior end — thence back onto the parietal bone, superiorly to and parallel with the mastoparietal suture. (4) Branches of Posterior Branch : — In majority of cases the posterior branch divides into two branches — on the temporal bone, most frequently — on the parietal bone, next most frequently — and on the squamoparietal suture, least frequently. Summary. — (1) That no parts of the middle meningeal artery or its anterior or posterior branches have fixed relations, except the main trunk at its exit from the foramen spinosum, and the anterior branch where it crosses the sphenoparietal suture to reach anterior inferior angle of parietal. (2) That the common trunk is generally present. (3) That the anterior branch may be given off from the orbital branch of the lachrymal branch of the ophthalmic. (4) That a tendency to symmetry exists upon the two sides of the skull, but is not constant. (5) That the anterior branch runs through a bony canal in the anterior inferior angle of the parietal bone in the majority of cases. LIGATION OF TRUNK OF MIDDLE MENINGEAL ARTERY. 47 LIGATION OF TRUNK OF MIDDLE MENINGEAL ARTERY IN THE CRANIUM THROUGH TREPHINE-OPENING EXPOSED BY CURVED OBLIQUE INCISION. Position. — Patient supine; head supported, shaved and turned to oppo- site side; surgeon on side of operation. Landmarks. — A point is selected as the center of the trephine-opening which will fall over the trunk of the artery proximal to its bifurcation, — and which is taken to be about 3.8 cm. (i4 inches) behind the external angular process of the frontal bone and 2.5 cm. (1 inch) above the zygoma. Incision. — Begins at external angular process of frontal bone — passes obliquely downward and backward to the posterior end of the zygoma — and from this point upward and backward above the auricle (Fig. 10, P). Fig. 20. — Ligation of Trunk of Right Middle Meningeal through Trephine- opening in Temporal Fossa by Curved Oblique Incision: — A, Temporal muscle (iis posterior border retracted upward and forward); B, Zygomatic arch, and temporal fossa 'ust above; C, Main trunk and anterior and posterior branches of midd'e meningeal, exposed through trephine-open ng 1 which is here shown somewhat too high); D, Deep temporal artery; E, Super- ficial temporal artery and vein; F, Auriculotemporal nerve (retracted backward); G, Branches of facial nerve (retracted downward and backward). Operation. — (1) Having incised skin and temporal fascia, ligate the superficial temporal artery and vein, guarding the auriculotemporal nerve and branches of the facial (Fig. 20). Then carry the incision along the posterior border of the temporal muscle through the periosteum to the bone. Detach the temporal muscle forward subperiosteal!}', baring parts of the squamous, parietal, and sphenoid bones — guarding the deep temporal arteries. Firmly retract the soft parts thus freed upward and forward. (2) Using a trephine about 3.8 cm. (ih inches) in diameter, place its center over a point about 3.8 cm. (i^ inches) behind the external angular process and 2.5 cm. (1 inch) above the zygoma. Having removed the disc of bone (which is here thin), expose the artery — and pass the needle carefully, to avoid wounding the brain. (3) In completing the operation, the disc of bone may be replaced, 48 OPERATIONS UPON THE ARTERIES. or not, according to the individual ideas of the surgeon. Allow the perios- teum and soft parts to re-occupy their normal positions. Suture the margins of severed periosteum with buried catgut. Repair by gut-suturing any muscle tissue which may have been cut and close the skin incision. Comment. — (i) This incision of Kocher, together with the subsequent retraction of the soft parts, involves less injury to the parts than the turning downward or upward of a semilunar or horseshoe flap, which is the method of approach most frequently adopted. (2) According to the researches of Plummer (v. s.), the osteoplastic flap operation of Hartley-Krause furnishes the best method of exposing the main trunk of the middle meningeal artery and its branches. (3) If the above trephine-opening expose the artery inconveniently near its circumference, the opening may be enlarged in the direction of the artery with rongeur forceps. LIGATION OF ANTERIOR BRANCH OF MIDDLE MENINGEAL ARTERY IN THE CRANIUM THROUGH TREPHINE-OPENING EXPOSED. BV A HORSESHOE INCISION. Position. — As for ligation of main trunk. Landmarks. — A point is selected as the center of the trephine-opening which will fall over the anterior branch just beyond its bifurcation — and is taken to be about 3.8 cm. (ih inches) behind the external angular process of the frontal bone, and from 3.8 to 4.5 cm. (1^ to if inches) above the zygoma. Incision. — A horseshoe incision with its center over the above point and its convexity upward is outlined — its anterior limb being just behind the external angular process, and the posterior limb corresponding with a line extending vertically upward from the auditory meatus (Fig. 10, Q). Operation. — The incision is carried, throughout, through skin, temporal fascia, temporal muscle, and periosteum to bone. These soft parts are raised subperiosteally and turned downward. A trephine of about 3.8 cm. (1^ inches) diameter is applied with its center over the above point. The steps of the operation are, henceforth, the same, practically, as those for the main trunk (page 47). Comment. — (1) See the surgical anatomy of the middle meningeal artery and its branches for variations in the course of the anterior branch. (2) According to Chipault's method of cranio-cerebral localization (page 546), the anterior branch of the middle meningeal crosses the second tenths of the three primary lines. In following which method, therefore, the trephine should have its center placed over a line which will cross these tenths at about their middle. (3) According to the researches of Plummer (page 45), who recommends Kroenlein's method of locating the anterior branch as the best of several, the following points are of practical value: — (A) That site should be chosen — (a) Which is high enough to avoid missing the anterior branch in case it originates from the orbital branch; — (b) which is high enough to be above the orbital branch when that branch is only a communicating branch; — (c) which is least apt to fall over the bony canal in the anterior inferior angle of the parietal, and over the bony ridge along the lower portion of the coronal suture: — (B) That a 2.5 cm. (1 inch) trephine-opening placed just behind any portion of the coronal suture will almost certainly strike the ante- rior branch, or a branch of the anterior branch. (4) According to Kroenlein's method, Reid's base line (page 551) is first drawn — then a higher line is drawn parallel with it and on a level with the supraorbital border. On the latter line a point is taken 3 or 4 cm. (iy F to i T 9 g- inches) behind the external angular SURGICAL ANATOMY OF INTERNAL CAROTID ARTERY. 49 process. The center of the trephine will rest on the sphenoid in the majority of cases. (This corresponds, practically, with the data often given, of fixing upon a point from 3.2 to 3.8 cm. (i| to 1^ inches), according to the size of the head, behind the external angular process — and from 3.8 to 4.5 cm. (i£ to if inches) above the zygoma. LIGATION OF POSTERIOR BRANCH OF MIDDLE MENINGEAL ARTERY IN THE CRANIUM THROUGH TREPHINE-OPENING EXPOSED BY A HORSESHOE INCISION. Position. — As in ligating the main trunk. Landmarks. — A point is selected as the center of the trephine-opening which will fall over the posterior branch in the groove of the parietal bone — and is taken to be at the intersection of a line drawn horizontally backward on a level with the roof of the orbit, and one drawn vertically upward from directly behind the mastoid process — which point of intersection lies just below the parietal eminence (Jacobson). Incision. — A horseshoe incision with its center over the above point, its convexity upward, and its limbs being from 5 to 5.7 cm. (2 to i\ inches) apart (Fig. 10, R). Operation. — Performed in the same general manner as for ligation of the anterior branch (page 48). Comment. — (i) According to the researches of Plummer (page 45), who recommends Steiner's method as the best of several for locating the posterior branch, the following points are of practical value : — (A) The posterior branch is incapable of being located with as much certainty as the anterior branch: — (B) The lateral sinus is to be guarded in exposing the posterior branch. (2) According to Steiner's method, Reid's base-line is first drawn — then a second higher line is drawn parallel with it and on a level with the supraorbital border. A third line is drawn vertically upward along the anterior border of the mastoid (drawing the ear forward). The intersection of the third with the second line marks a convenient site for reaching the posterior branch. The trephine-pin rests on the squamoparietal suture. When the posterior branch itself is not encountered, its two branches usu- ally are. SURGICAL ANATOMY OF INTERNAL CAROTID ARTERY. Description. — The larger of the two branches of the common carotid. Arises opposite upper border of thyroid cartilage (on level with fourth cervical vertebra) — at first comparatively superficial, and lies slightly external to external carotid, then sinks more deeply in neck and passes posteriorly to that vessel — ascending neck in front of transverse processes of upper cervical vertebra.' to enter the carotid canal. The relations of its different portions are as follows: Relations. — (i) First or Cervical Portion :— Anteriorly (from below upward) — skin; superficial fascia; platysma; deep fascia; sternomastoid; posterior belly of digastric; stylohyoid; hypoglossal; occipital artery; posterior auricular artery; external carotid; styloglossus; stylopharyngeus; glosso- pharyngeal nerve; pharyngeal branch of pneumogastric; stylohyoid ligament. Posteriorly — rectus capitis anticus major; transverse processes of three 5° OPERATIONS UPON THE ARTERIES. upper cervical vertebra-; superior cervical ganglion; pneumogastric nerve; hypoglossal nerve; glossopharyngeal nerve; spinal accessory nerve; internal jugular vein. Externally— internal jugular vein; pneumogastric nerve. Internally— pharynx; superior constrictor; tonsil; ascending pharyngeal artery; ascending palatine artery; eustachian tube; levator palati. (2) Second or Petrous Portion :— Within carotid canal in petrous portion of temporal bone. (3) Third or Cavernous Portion :— Between layers of dura mater, forming cavernous sinus. (4) Fourth or Cerebral Portion : — Enters inner extremity of fissure of Sylvius and gives off its branches. Branches.'— From cervical portion— none. From petrous portion— tympanic; vidian. From cavernous portion — arteria receptaculi; pituitary; gasserian; anterior meningeal; ophthalmic. From cerebral portion— anterior cerebral; middle cerebral; posterior communicating; anterior choroid. Line.— Same, practically, as for the external carotid.,— or possibly a little to the outer side of that line at its lower part. Indications for Ligation. — Wounds; aneurism. Site of Ligation. — Near origin (Fig. 10, S). LIGATION OF INTERNAL CAROTID ARTERY NEAR ORIGIN. Position— Landmarks. — As for ligation of external carotid below the digastric (page 37). Incision.— Slightly posterior to the incision lor the external carotid artery— that is, along' the anterior border of the sternomastoid. instead of just in front of it — with the center of the incision about 1.3 cm. (h inch) above the upper border of the thyroid cartilage (Fig. 10, S). Operation. — The steps are, at first, the same as those for exposing the external carotid below the digastric. This artery (external carotid) is first sought (all the structures mentioned in that operation being encountered) and traced to its bifurcation, and thus the internal carotid is exposed — the external carotid being drawn inward and the digastric upward. In opening the sheath special care must be taken to guard the internal jugular vein, pneumogastric nerve, cervical sympathetic, ascending pharyngeal artery — ■ the needle being passed from the vagus and internal jugular vein (Fig. 15). Collateral Circulation. — Circle of Willis. SURGICAL ANATOMY OF SUBCLAVIAN ARTERY. Description. — Subclavian artery on right side, about 7.5 cm. (3 inches) in length, arises from the innominate; and, on the left, about 10 cm. (4 inches) in length, arises from arch of aorta — arching, in both cases, across the root of neck, over the dome of the lung and pleura, to the lower border of the first rib, where it becomes the axillary artery. That portion of the subclavian internal to inner border of scalenus anticus being the first part — that portion behind this muscle being the second part — and that portion external to the outer border of scalenus anticus being the third part. The subclavian vein lies below and anterior to artery, the scalenus anticus intervening. The posterior border of the sternomastoid corresponds with the external border of the scalenus anticus. Relations.— (a) First Portion of Right Subclavian: — About 3 cm. SURGICAL ANATOMY OF SUBCLAVIAN ARTERY. 5 1 (i\ inches) in length' — arises from bifurcation of innominate, behind upper border of right sternoclavicular articulation — curves upward and outward (with convexity upward) at a variable distance above clavicle, over apex of right lung and pleura, to inner border of right scalenus anticus, hav- ing following relations: — Anteriorly — skin; superficial fascia; platysma; an- terior laver of deep fascia; clavicular origin of sternomastoid; sternohyoid; sternothvroid; deep cervical fascia; right innominate vein; internal jugular vein; vertebral vein; pneumogastric nerve; phrenic nerve; superior cardiac branches of sympathetic nerve: — Posteriorly — areolar tissue; longus colli; transverse process of seventh cervical and first dorsal vertebra; sym- pathetic nerve; inferior cardiac nerves; recurrent laryngeal nerve; apex of right lung and pleura; neck of first rib: — Inferiorly — pleura and lung; recurrent laryngeal nerve; subclavian vein, (b) First Portion of Left Subclavian: — Much longer than that of right — arises from distal end of transverse part of arch of aorta, opposite fourth dorsal vertebra, to left and slightly posterior to left common carotid — ascending, at first, almost vertically — then arching further upward and outward over apex of left lung and pleura to inner border of left scalenus anticus — having following relations: — Ante- riorly — left pleura and lung; sternothyroid; sternohyoid; sternomastoid; left innominate vein; internal jugular vein; vertebral vein; subclavian vein; phrenic nerve; pneumogastric nerve; left cervical cardiac nerves of sympathetic; left common carotid; thoracic duct: — Posteriorly — esophagus; thoracic duct; inferior cervical sympathetic ganglion; longus colli; vertebral column; left pleura and lung: — Externally — left pleura and lung: — Internally— trachea; recurrent laryngeal nerve; esophagus; thoracic duct, (c) Second Portions of Both Subclavian Arteries : — Highest part of the vessel — about 2 cm. (f inch) in length — lies behind scalenus anticus, which separates the artery from the subclavian vein — and has following relations: — Anteriorly — skin; superficial fascia; platysma; anterior layer of deep fascia; clavicular origin of sternomastoid; deep layer of deep fascia; phrenic nerve; subclavian vein; scalenus anticus: — Posteriorly — apex of lung and pleura; scalenus medius: — Superiorly— brachial plexus: — Inferiorly— lung and pleura, (d) Third Portions of Both Subclavians : — Lie in subclavian triangle (of sternomastoid, omohvoid, and clavicle). Extend from outer border of scalenus anticus downward and outward to lower border of first rib, and have following rela- tions: — Anteriorly — skin; superficial fascia; platysma; clavicular branches of descending portion of cervical plexus; anterior layer of deep fascia (from omohyoid to clavicle) ; posterior layer of deep fascia (from omohyoid to first rib); fatty areolar tissue between layers of deep cervical fascia; suprascapular artery; external jugular vein; suprascapular vein; transversalis colli vein; other tributary veins to external jugular; nerve to subclavius muscle; sterno- mastoid (sometimes); clavicle; subclavius muscle: — Posteriorly— scalenus medius; cord of brachial plexus formed by eighth cervical and first dorsal: — Superiorly— brachial plexus; posterior belly of omohyoid: — Inferiorly — first rib. Branches.— From First Portion : — vertebral, thyroid axis (inferior thyroid, transversalis colli, suprascapular), internal mammary. From Second Portion: — superior intercostal. From Third Portion: — no branches, ordinarily. Line.— A curve, with convexity upward, at base of posterior triangle- beginning at sternoclavicular articulation and ending at center of inferior border of clavicle— its mid-point being about 1.3 cm. (h inch) above the superior border of clavicle. Indications for Ligation.— Wounds; aneurism; preliminary to extensive operations about the shoulder and upper extremity. 52 OPERATIONS UPON THE ARTERIES. Sites of Ligation.— But few successful cases of ligation of the first portion of the right subclavian are recorded and fewer of the left — the ligation being particularly hazardous, especially upon the latter side. Nor is ligature of the second portion to be recommended, owing to the depth and relations of the artery. The third portion is the part of the artery usually selected for ligation (Fig. 10, T). Ligation of the first portion of the subclavian differs slightly upon the two sides, owing to anatomical relations. LIGATION OF FIRST PORTION OF RIGHT SUBCLAVIAN BY ANGULAR INCISION. Position — Landmarks — Incision. — As for ligation of innominate by angular incision (page 27). Operation. — Having incised skin and superficial fascia, this triangular flap is dissected up, as in ligation of the innominate. The anterior jugular vein is doubly ligated and divided, and the external jugular similarly treated, if in the way. Divide the deep fascia. Expose and sever the sternal and clavicular heads of the sternomastoid. Divide the sternohyoid and sterno- thyroid either in whole or in part. Expose the common carotid, carefully retracting the internal jugular vein and pneumogastric nerve outward and displacing or doubly ligating any overlying veins. Identify the subclavian vein by following down the common carotid on its postero-external aspect to the bifurcation. Clear the subclavian artery, carefully guarding the recurrent laryngeal and phrenic nerves and vertebral artery. Displace the pleura downward and outward with tip of finger, and pass. the needle from below (from the pleura). The vertebral should also be secured at the same time and through the same incision — to accomplish which, the internal jugular and pneumogastric nerve are now retracted inward and the vertebral exposed by a few strokes of the knife as it lies between the longus colli and scalenus, guarding the phrenic and recurrent laryngeal nerves and the inferior thyroid artery. (Also see Fig. 12.) Comment. — Excision of the right sternoclavicular articulation may be done when necessary, as in the ligation of the innominate by partial bony resection. Collateral Circulation. — Superior thyroid, with inferior thyroid; one vertebral, with opposite vertebral. Internal mammary, with deep epigastric and aortic intercostals. Superior intercostal, with aortic intercostals. Pro- funda cervicis, with princeps cervicis. Scapular branches of thyroid axis, with branches of axillary. Thoracic branches of axillary, with aortic inter- costals. LIGATION OF FIRST PORTION OF LEFT SUBCLAVIAN BY ANGULAR INCISION. Position — Landmarks — Incision. — As for ligation of innominate by angular incision, except that the operation is placed upon the left side. Operation. — The steps of the operation are similar to those for ligation of the first portion of the right subclavian — up to the exposure of the common carotid and internal jugular. Here the common carotid and pneumogastric are retracted inward, the internal jugular is drawn outward and downward, and, with it, the left innominate vein. At this stage the head is bent forward LIGATION OF THIRD PORTION OF THE SUBCLAVIAN. 53 to relax the parts. Special care is here given to identifying the thoracic duct before proceeding — the duct arching from the seventh cervical vertebra forward and downward over the subclavian artery in front of the scalenus anticus, and emptying into the left subclavian vein at the junction with it of the left internal jugular, being embedded in the loose areolar tissue of the part, making it often difficult to find, and sometimes dividing into several branches. Having safeguarded the important neighboring structures, follow down the common carotid with the finger until the subclavian is identified, on a plane posterior and external to that of the former vessel. The artery is then to be freed, carefully guarding the pleura; the sheath is opened and the needle passed from the pleura. Comment. — If more room be required than given by the above incision, or if it be required to ligate the vessel nearer the arch, an excision of the sternoclavicular articulation can be done. Collateral Circulation. — See Ligation of First Part of Right Subclavian. LIGATION OF SECOND PORTION OF SUBCLAVIAN ARTERY. Position — Landmarks — Incision. — As for ligation of third portion of subclavian. Operation. — The steps of this operation, up to the division of the deep cervical fascia and the recognition of the outer border of the scalenus anticus (which lies directly under the outer border of the sternomastoid), are identical with those for the exposure of the third part of the subclavian. The further steps consist in the inward retraction of the scalenus anticus (and overlying sternomastoid), with the division of as many of their fibers as necessary, when the artery will be exposed and may be ligated. Especial care is taken to guard the phrenic nerve, which crosses obliquely the lower anterior surface of the scalenus anticus, — as well as the transversalis colli and suprascapular arteries, which cross the scalenus anticus transversely, — and the external jugular vein, running parallel with the anterior scalene muscle. Comment. — This operation is often merely a proximal continuation of the operation for the exposure of the third part of the subclavian, when the application of a ligature to the third part is impracticable. LIGATION OF THIRD PORTION OF THE SUBCLAVIAN. Position. — Patient supine; shoulders raised; head thrown back and to opposite side; operated shoulder depressed by arm drawn downward and placed under the back (to open out the posterior cervical triangle). Surgeon in front of shoulder. Landmarks. — Posterior border of sternomastoid (which corresponds with the outer border of the scalenus anticus); anterior border of trapezius; middle of clavicle. Incision. — With the skin of the posterior cervical triangle drawn down over the clavicle by the left hand, an incision about 7.5 cm. (3 inches) is made transversely over the clavicle down to the bone, from the posterior border of the sternomastoid to the anterior border of the trapezius, and with its center about 2.5 cm. (1 inch) internal to the center of the superior border of the clavicle (Fig. 10, T). Operation. — (i) This incision will divide the skin, fascia, platysma, 54 OPERATIONS UPON THE ARTERIES. some supraclavicular nerves, and maybe a connecting vein between the cephalic and internal jugular— but will avoid the external jugular, which passes through the deep fascia above the clavicle. The incision will lie about 2.5 cm. (£ inch) above the clavicle when the tension upon the skin is relaxed (Fig. 21). (2) The margins of the sternomastoid and trapezius will be exposed, & and, if more room be needed, may be divided along the clavicle as far as necessary. (3) The deep cervical fascia is next incised, the external jugular vein being carefully exposed and retracted, or divided between double ligatures. Tributary vein's of the external jugular are to be similarly treated, especially the transv'ersalis colli and suprascapular. (4) Generally the trans- versaiis colli artery lies transversely above the incision, and the suprascap- ular transversely below it, under the clavicle and out of the way; but one or Fig. 21. — Ligation of Third Part of Right Subclavian: — A, Platysma; B, Trapezius; C Sternomastoid (posterior border incised); D, Scalenus amicus; E, Posterior belly of omohyoid (re- tracted upward); F, Clavicle ; G, Third part of subclavian ; H, Transversalis colli A.; I, Suprascapu- lar A.; J, Subclavian vein; K, Upper end of external jugular V. (divided and retracted), with transversalis colli V. and communicating branch to anterior jugular ; L, Lower end of external jugu- lar (divided and retracted), with suprascapular branch ; M, Brachial plexus; N, N, N, Supraclavicu- lar nerves ; O, Deep cervical fascia. both may present in the field, and are to be carefully preserved for collateral circulation. Retract the posterior belly of the omohyoid upward if in the way. Identify the outer margin of the scalenus (just under the outer margin of the sternomastoid) as a guide to the artery, and follow its outer border downward until the finger reaches the tubercle on the upper border of the first rib, which lies between the subclavian vein in front, and the subclavian artery behind — when the artery will be recognized and may be traced upward. (5) Expose the lowest cord of the brachial plexus — for the purpose of hence- forth avoiding it (as it has been mistaken and ligated for the artery). The subclavian vein will lie anteriorly and inferiorly to the artery. (6) Open the sheath — clear the artery — and pass the needle from the brachial plexus, guarding the subclavian vein and the pleura. LIGATION OF VERTEBRAL BRANCH OF SUBCLAVIAN. 55 Collateral Circulation. — (When the second or third part is tied) : — Supra- scapular and posterior scapular above, with acromiothoracic, infrascapular, subscapular, and dorsalis scapuke below; internal mammary, superior inter- costals, aortic intercostals above, with long thoracic and scapular arteries below; plexiform vessels from branches of subclavian above, with branches of axillary below. SURGICAL ANATOMY OF VERTEBRAL ARTERY. Description. — Largest and generally first branch of subclavian. Arises from upper and posterior portion of first part of subclavian, near inner border of scalenus anticus — ascends upward, backward, and outward, in interval between scalenus anticus and longus colli, to foramen in transverse process of sixth cervical vertebra — passes through foramina in all vertebrae above this — emerging from foramen in transverse process of atlas, it runs in groove on posterior arch of atlas, lying in the suboccipital triangle, and pierces the occipito-atloid ligament and dura mater — and passes into cranium through foramen magnum — upward upon lateral aspect of medulla to its anterior aspect, where it unites with its fellow to form the basilar. Relations. — (a) First or Cervical Part : — from origin to transverse process of sixth cervical vertebra, lying between scalenus anticus and longus colli. Anteriorly — vertebral vein; internal jugular vein; inferior thyroid artery; thoracic duct (left side). Posteriorly — transverse process of seventh cervical vertebra; sympathetic nerve. Externally — scalenus anticus. In- ternally — longus colli, (b) Second or Vertebral Portion : — runs in osseo- muscular canal formed by intervertebral foramina and intertransverse muscles, surrounded by plexus of veins and branches of sympathetic nerve, (c) Third or Occipital Portion : — lies in suboccipital triangle, which is formed, superiorly and internally, by rectus capitis posticus major; superiorly and externally, by obliquus capitis superior; inferiorly and externally, by obliquus capitis inferior; covered by complexus muscle; and floor formed by posterior occipito-atlantal ligament, posterior arch of atlas and posterior atlanto- axial ligament; — the triangle containing the vertebral artery and suboccipital nerve, the latter passing between the artery and arch of the atlas. Ante- riorly — rectus capitis lateralis; articular process of atlas; occipito-atloid ligament. Posteriorly — superior oblique; rectus capitis posticus major; complexus. (d) Fourth or Intracranial Portion: — from opening in dura to lower border of pons, where it unites with its fellow to form basilar artery. Indications for Ligation. — Wounds; traumatic aneurism; in connection with ligation of innominate (to prevent secondary hemorrhage). Sites of Ligation. — In the first or cervical portion (usual site); in third or occipital portion (rarely). LIGATION OF VERTEBRAL BRANCH OF SUBCLAVIAN NEAR ITS ORIGIN. Position. — Patient supine; shoulders raised; neck prominent; head to opposite side; surgeon on right, in operating on either vertebral. Landmarks. — Anterior border of sternomastoid. 56 OPERATIONS UPON THE ARTERIES. Incision.- — About 7.5 cm. (3 inches) in length, extending along the ante- rior border of the sternomastoid, ending below at the clavicle. (As for ligation of the common carotid below the omohyoid.) Operation. — (1) Having divided skin, superficial fascia, and the anterior portion of the platysma, branches of the superficial cervical nerve, and com- municating veins between the anterior and external jugular veins, are en- countered and are treated as indicated. (2) Incise the deep cervical fascia, exposing the anterior border of the sternomastoid, which is to be drawn outward; and the omohyoid, which is to be retracted downward and inward; and also the sternohyoid, which is drawn inward. (3) Having freed the attachment of the inner aspect of the common sheath, the carotid, internal jugular, and pneumogastric are drawn outward from over the vertebral artery. The prevertebral fascia is then incised vertically between the carotid tubercle (transverse process of sixth cervical vertebra) and the arch of the inferior thyroid artery (where it turns inward to the posterior surface of the thyroid gland) — where the vertebral artery will be found ascending, partly covered by the longus colli, to the foramen in the transverse process of the sixth cervical vertebra, having the anterior scalenus muscle and phrenic nerve to its outer side, and the longus colli muscle and recurrent laryngeal nerve to its inner side, and the inferior thyroid artery and vein and the vertebral vein lying over it. All these structures, therefore, are to be displaced in the most convenient directions, as the finger seeks the vertebral artery in the above triangular space. The pleura lies below and internally. The thoracic duct, on the left, crosses the artery from within outward. (4) The artery is to be exposed, and the ligature passed with especial care, in order to avoid, as far as possible, the fibers of the sympathetic, some of which are apt to be included in the ligature. (Also see Fig. 12, M.) Comment. — The vertebral artery may also be ligated bv an incision made along the posterior border of the sternomastoid, followed by the inward retraction of that muscle (with or without a partial division of its clavicular attachment), but is less simple than the above. The artery may also be ligated in the suboccipital triangle. SURGICAL ANATOMY OF INFERIOR THYROID BRANCH OF THYROID AXIS OF SUBCLAVIAN ARTERY. Description and Relations. — Largest branch of thyroid axis (which latter arises from first part of subclavian). Ascends upward and inward to posterior surface of thyroid gland — passing behind common carotid, internal jugular, pneumogastric nerve, and sympathetic nerve (middle cervical gan- glion usually resting upon it) — and in front of vertebral artery, recurrent laryngeal nerve (sometimes posterior to it), longus colli muscle. The thoracic duct passes in front of commencement of left vertebral artery. Indications for Ligation. — Preliminary to thyreoidectomy; and to diminish goiter. Sites of Ligation. — Just beyond the ascending cervical branch (which arises shortly before the vertebral passes behind the carotid). SURGICAL ANATOMY OF INTERNAL MAMMARY. 57 LIGATION OF INFERIOR THYROID BRANCH OF THYROID AXIS OF SUBCLAVIAN. Position. — Patient supine; shoulders elevated; neck prominent; head to opposite side. Surgeon to right side, in either case. Landmarks. — Anterior border of sternomastoid. Incision. — About 7.5 cm. (3 inches) in length, along the anterior margin of the sternomastoid (as for the common carotid). Operation. — Divide skin, superficial fascia, and the platysma, when branches of the superficiaiis colli nerve and tributaries between the anterior and external jugular veins are met, and are to be dealt with as indicated. Incise the deep cervical fascia and define the anterior border of the sterno- mastoid, and retract that muscle outward — the omohyoid is drawn downward and inward, and the sternohyoid inward. After freeing the inner attachment of the common sheath, the carotid, internal jugular, and pneumogastric are drawn outward from over the inferior thyroid artery. The artery is then sought by continuing the dissection toward the .vertebra?, lying a little way below the carotid tubercle, in the interval covered by the sternothyroid muscle, between the inner border of the retracted carotid sheath and the outer border of the thyroid gland. The gland is raised and displaced inward. The artery is exposed where it arches inward, and where the ascending cervical branch arises. The ligature is applied just beyond this branch — thus avoid- ing the recurrent laryngeal nerve, which runs along the trachea and behind the thyroid gland; and the vertebral artery, nearly parallel with it below and passing behind the inferior thyroid as the latter bends inward. The sympathetic nerve, which sometimes embraces the artery, and the phrenic, which lies to its outer side, are to be guarded against injury. SURGICAL ANATOMY OF INTERNAL MAMMARY BRANCH OF SUB- CLAVIAN. Description. — Arises from lower aspect of first part of subclavian, near to inner margin of scalenus anticus — descends forward and inward, passing behind clavicle to enter thorax posterior to cartilage of first rib — thence runs downward parallel with and about 1.3 cm. (h inch) external to margin of sternum, to interspace between sixth and seventh costal cartilages, where it divides into superior epigastric and musculophrenic. Its two vena? comites unite to form one trunk in first intercostal space and empty into the innominate vein. The internal mammary artery, above, is 0.5 to 1.5 cm. (i- to f inch) from border of sternum — and, below, from 1 to 2 cm. (f- to A inch) from the sternal margin. In its upper part it lies between the internal intercostal muscle and costal cartilages, in front; and pleura behind. In its lower part it lies between the costal cartilages in front; and triangularis sterni behind (the latter structure intervening between it and the pleura). Relations. — (a) Cervical Part : — Covered by sternomastoid, subclavian vein, internal jugular vein, phrenic nerve. Rests on pleura, innominate vein, (b) Thoracic Part : — Covered by cartilages of first to sixth ribs, pecto- ralis major, internal intercostal muscles, anterior intercostal membrane. Rests on pleura (above), and triangularis sterni (below). Arterial Supply of the Antero-lateral Thoracic Wall. — (a) As the internal mammary artery crosses the upper intercostal spaces two branches (superior and inferior anterior intercostal arteries, or superior and inferior branches of the anterior intercostal arteries, where they arise from a common trunk) are given off in each of the five or six upper interspaces — which pass outward between the pleura and the internal intercostal muscles, and then 58 OPERATIONS UPON THE ARTERIES. between the internal and external intercostal muscles, running along the lower border of the superior, and the upper border of the inferior rib — to anastomose with the superior and inferior branches of the aortic intercostals. (b) In each of the same upper five or six spaces a single branch, the perforating, or the anterior perforating, is given off between the upper and lower anterior intercostal arteries — which pierce the internal intercostal muscles, between the costal cartilages, and supply the pectoralis major, mammary gland (sec- ond, third, and fourth branches), and skin, (c) The anterior intercostal branches for the five or six lower interspaces are given off by the mus- culophrenic branch, which passes down behind the costal cartilages, pierc- ing the diaphragm opposite the ninth rib, and ending at the tenth or eleventh interspace by anastomosing with the ascending branch of the deep circumflex iliac. The anterior intercostals anastomose with the lower aortic intercostals. (See Surgical Anatomy of Aortic Intercostal Arteries, page 76.) Indications for Ligation. — Rare, except for wound, when it is usually ligated at the site of injury. If the artery have retracted out of reach, it is ligated in the interspace above or below. Sites of Ligations. — Reached most readily in first, second, or third interspaces — especially in the second. A CFG Fig. 22.— Ligation of Right Internal Mammary in Second Intercostal Space:— A, Pec- toralis major; B, External intercostal muscle, continued to sternum by anterior intercostal mem- brane; C, Internal intercostal muscle; D, Margin of sternum; E, Endothoracic fascia; F, Pleura; G, Internal mammary artery and venae comites. LIGATION OF INTERNAL MAMMARY BRANCH OF SUBCLAVIAN IN SECOND INTERCOSTAL SPACE. Position. — Patient supine; chest supported from behind (to increase width of intercostal spaces). Surgeon on side of operation. Landmarks. — Outer border of sternum; lower border of second and upper border of third costal cartilages. SURGICAL ANATOMY OF AXILLARY ARTERY. 59 Incision. — Transverse in direction and about 6.3 cm. (2J inches) in length — beginning over center of sternum and passing outward over center of interspace between second and third costal cartilages (Fig. 10, V). Operation. — Divide skin, fascia, pectoralis major, anterior intercostal membrane (running downward and inward), internal intercostal muscle (running downward and outward), and endothoracic fascia — when the artery is found lying upon the pleura, with the venae comites to either side. Separate the artery and pass the needle with especial care, to avoid the pleura (Fig. 58). W « Fig. 23. — Incisions for Ligating Right Axillary and Brachial Arteries: — A, Junction of anterior and middle thirds of outer axillary wall ; B, Center of bend of elbow ; C, Ligation of third part of axillary ; D, Of brachial in middle of arm ; E, Of brachial at bend of elbow. SURGICAL ANATOMY OF AXILLARY ARTERY. Description and Relations. — Continuation of subclavian — extending through axilla, from lower border of first rib, on to the arm, at the lower border of the tendon of teres major muscle, where it becomes the brachial. It is divided into three parts: (a) First Part : — About 2.5 cm. (1 inch) in length — extending from lower border of first rib to upper border of pectoralis minor, having following relations: Anteriorly — skin; superficial fascia; origin of platysma; deep fascia; pectoralis major; clavicle (when shoulder is depressed) ; subclavius muscle (when shoulder is depressed) ; costocoracoid membrane; layer of areolar fatty tissue; cephalic vein; acromiothoracic vein; anterior external thoracic nerve; axillary lymphatic trunk. Posteriorly — first intercostal space; first intercostal muscle; second (and sometimes third) serrations of serratus magnus; part of second rib; posterior thoracic nerve. Externally — brachial plexus. Internally — axillary vein; anterior internal thoracic nerve, (b) Second Part : — about 3 cm. (i| inches) in length — lying behind pectoralis minor muscle, and having following relations: Ante- 60 OPERATIONS UPON THE ARTERIES. riorly — integuments; superficial fascia; pectoralis major; pectoralis minor. Posteriorly — posterior cord of brachial plexus; areolar tissue and fat; sub- scapularis. Externally — external cord of brachial plexus; coracoid process (somewhat removed). Internally — internal cord of brachial plexus; axillary vein, (c) Third Part: — about 7.5 cm. (3 inches) in length — extending from lower border of pectoralis minor to lower border of tendon of teres major (the upper half being in axilla, the lower half on arm), and having following relations: Anteriorly — integument; superficial fascia; pectoralis major; deep fascia of arm; internal root of median nerve; external brachial vena comes. Posteriorly — musculospiral nerve; circumflex nerve; fatty areolar tissue; subscapulars ; latissimus dorsi; teres major. Externally — external root of median nerve; musculocutaneous nerve; coracobrachialis. Internally — in- ternal root of median nerve; ulnar nerve; internal cutaneous nerve; lesser internal cutaneous nerve; axillary vein. Branches. — From first part — superior thoracic, acromial thoracic. From second part — long thoracic, alar thoracic. From third part — sub- scapular, anterior circumflex, posterior circumflex. Line of Artery. — (With arm at right angle to trunk and hand supine) — from middle of clavicle to junction of anterior and middle thirds of the outer axillary wall, between the anterior and posterior folds of the axilla. Sites of Ligation. — Third part, by preference; — first part, if third part not available. Ligation of third portion of subclavian is usually considered preferable to that of first part of axillary (Figs. 23, C, and 10, W). Comment. — (1) When the arm is at a right angle to the body, the axillary vein is drawn across the first part of the artery. (2) The upper and lower borders of the pectoralis minor correspond, respectively, with lines drawn from the junction of the third rib and its cartilage to the coracoid process; and from the junction of the fifth rib and its cartilage to the coracoid process. (3) Two brachial venae comites are generally found at the lower part of the artery — and also the basilic vein, unless it have already joined the internal vena comes. LIGATION OF FIRST PART OF AXILLARY ARTERY PA' CURVED TRANSVERSE INCISION BELOW CLAVICLE. Position. — Patient on back, at edge of table; upper thorax raised; shoulder backward. Surgeon near thorax on left, for left operation; near head on right, for right operation — (or between abducted limb and body on each side). Landmarks. — Clavicle; sternoclavicular articulation; coracoid process. Incision. — Curved incision in infraclavicular fossa — beginning just ex- ternal to the sternoclavicular joint — dipping, at lowest point, about 1.3 cm. (^inch) below clavicle — and ending at the coracoid process (Fig. 10, W). Operation. — Incise skin, platysma, supraclavicular nerves, and fascia. Carefully guard the cephalic vein and branches of acromial thoracic artery at outer part of wound, on account of collateral circulation. Divide the clavic- ular origin of the pectoralis major throughout the wound. Clear the areolar tissue beneath the pectoralis major. Expose the upper border of the pectoralis minor and draw it downward. Divide obliquely downward and outward, near the coracoid process, the costocoracoid membrane — through which pass the cephalic vein, branches of the acromiothoracic artery, and the anterior thoracic nerves — and displace it upward and outward. The cephalic vein, indicating the position of the axillary vein, is generally closely adherent to the costocora- LIGATION OF FIRST PART OF AXILLARY ARTERY. 6l coid membrane. Expose the sheath and clear the artery — which lies between the axillary vein on the inner side and the brachial plexus on the outer, aided in the exposure by bringing the arm nearer the body, when the axillary vein will be carried from over the artery to its inner side. The ligature is placed above the acromiothoracic branch. The incised pectoralis major muscle is repaired by gut suturing. Comment. — This is the easiest and most frequent ligation of the first part in the rare cases in which a ligation at this site is done — a ligation of the third portion of the subclavian being considered preferable. The first part may also be exposed by an oblique incision in the groove between the pectoralis major and deltoid. Collateral Circulation. — When ligated between the superior thoracic and acromial thoracic: — Suprascapular and posterior scapular; with acromial thoracic and subscapular. Internal mammary, aortic intercostals, superior intercostal; with long thoracic and subscapular. Plexiform vessels from subclavian; with plexiform vessels from axillary. Fig. 24. — Ligation of Third Part of Right Axillary: — A, Coracobrachial (retracted outward); B, Pectoralis major; C, Teres major; D, Triceps; E, Axillary artery; F, Basilic vein, becoming axillarv vein after receiving two brachial venae comites; G, Right brachial vena comes; H, Musculocutaneous nerve; 1, Median X.; S, Internal cutaneous X.; K, K, Ulnar N. 62 OPERATIONS UPON THE ARTERIES. LIGATION OF THIRD PART OF AXILLARY ARTERY. Position. — Patient supine at edge of table; shoulders raised; arm at right angle to body, and slightly rotated outward. Surgeon between arm and chest, on either side. Axilla to be shaved. Landmarks. — Junction of anterior and middle thirds of external axillary wall; coracobrachialis. Incision. — About 7.5 cm. (3 inches) in length — beginning at the middle of the outlet of the axilla, at the junction of the anterior and middle thirds of its outer wall, and passing downward along the inner border of the coraco- brachialis (Fig. 23, C). Fig. 25. — Cross-section of the Right Arm at the Axillary Level: — A, Axillary artery and vein; B, Ulnar nerve; C, Musculospiral nerve; D, Median nerve; E, Internal cutaneous nerve; F, Musculocutaneous nerve; G, Coracobrachialis muscle; H, Biceps; I, Pectoralis major muscle and biceps tendon; J, Deltoid; K, Triceps; L, L, Latissimus dorsi. (The cross-section modified from Esmarch.) Operation. — Having incised integument and fascia, expose the inner border of the coracobrachialis (Fig. 24). Draw this muscle and the musculo- cutaneous nerve outward. The median nerve is exposed and also drawn outward. The internal cutaneous and ulnar nerves are drawn inward. Venae comites are generally present at the lower part of the axilla and sometimes the basilic vein, which have to be guarded. Again, the axillary vein alone may be present to the inner side of the artery. Pass the needle from the vein, ligating the artery as far from a large branch as possible (Fig. 25). SURGICAL ANATOMY OF BRACHIAL ARTERY. 63 Collateral Circulation. — (a) If tied below the circumflex arteries: — the posterior circumflex above, with the superior profunda below, (b) If tied between subscapular above and two circumflex branches below: — the supra- scapular and acromial thoracic above, with posterior circumflex below. SURGICAL ANATOMY OF BRACHIAL ARTERY. Description. — Continuation of axillary artery. Extends down inner and anterior aspect of arm, from lower border of tendon of teres major to about 1.3 cm. (^ inch) below center of crease at bend of elbow, and divides, opposite junction of head with neck of radius, into radial and ulnar arteries. The artery lies in the depression at the inner borders of the coracobrachialis and biceps, and then in the groove between the supinator longus and pronator radii teres, passing under the bicipital fascia below. It lies to the inner side of humerus above, and in front of it below. Fig. 26.— Ligation of Right Brachial at Middle of Arm :— A, Biceps; B, Coracobrachi- alis (retracted outward) : C, Triceps; D, Brachial artery and branches; E, Brachial venae comites and communicating branches ; F, Basilic vein ; G. Branch from basilic to cephalic vein ; H, Median nerve; I, Ulnar X. ; J, Internal cutaneous N. Relations. — Anteriorly: integument; superficial and deep fascia; median nerve (in middle); median basilic vein and bicipital fascia (at elbow). Posteriorly : lies, in order, upon — long head of triceps (musculospiral nerve and superior profunda artery intervening); inner head of triceps; insertion of coracobrachialis; brachialis anticus. Externally: in order — coraco- brachialis; belly of biceps (both slightly overlapping the artery); tendon of 6 4 OPKRATIONS UPON THE ARTERIES. biceps; median nerve, above (crossing artery at middle); external vena comes. Internally: internal cutaneous and ulnar nerves (above); median nerve (below); internal vena comes; basilic vein. Branches. — Superior profunda; inferior profunda; anastomotica magna; nutrient; muscular. Line of Artery. — (Arm extended and abducted, hand supine.) From junction of anterior and middle thirds of outer wall of axilla to center of bend of elbow (Fig. 23, A and B). Sites of Ligation. — Middle of arm (preferably); bend of elbow. Fig. 27. — Cross-section of the Middle of the Right Arm: — A, Brachial artery and veins and inferior profunda artery and median and ulnar nerves; B, Musculospiral nerve and superior profunda artery; C, Nutrient vessels; D, Biceps muscle; E, Triceps; F, Brachialis anticus muscle. (Cross-section modified from Braune.) LIGATION OF BRACHIAL ARTERY IN MIDDLE OF ARM. Position. — Limb extended, abducted, and hand supine. Surgeon to outer side of limb, cutting from above downward on right, and from below upward on left. Landmarks. — Inner border of coracobrachialis and biceps; line of artery. Incision. — About 5 to 7.5 cm. (2 to 3 inches) in length, extending along inner border of biceps, in line of artery, opposite middle of arm (Fig. 23, D). Operation. — The skin and fascia having been divided, the inner border of the biceps must be clearly recognized and retracted outward — when the arterv is generally found under its inner margin — the median nerve usually crossing the front of the arterv at its middle — the internal cutaneous nerve LIGATION OF BRACHIAL ARTERY. 65 lying to the inner side (Fig. 26). The venae comites and basilic vein are to be separated from the artery. The needle is passed from the nerve (Fig. 27). Comment. — (1) The artery is not as easily found in this situation as the superficial position would suggest. Its exposure is made easier by an assistant's holding the limb by the wrist, so that it cannot rest on the table, where the triceps is apt to be pushed upward and may protrude the inferior profunda artery and ulnar nerve, instead of the brachial artery and median nerve (Heath). (2) In ligating higher than the middle third, the artery lies to the inner side of the coracobrachialis, the median nerve to the outer side, and the ulnar nerve to the inner. Fig. 28. — Ligation of the Right Brachial at the Bend of the Elbow: — A, A, Median basilic vein; B, Median cephalic vein; C, Internal cutaneous nerve and branches; D, Biceps; E, E, Bicipital fascia; F, Brachial artery; G, Brachial venae comites and communicating branch; H, Median nerve; I, Brachialis anticus muscle. LIGATION OF BRACHIAL ARTERY AT BEND OF ELBOW. Position. — Limb extended (not overextended) and abducted. Surgeon to outer side of limb, cutting from above on right, and from below on left. Landmarks. — Inner border of biceps tendon. Incision. — About 5 cm. (2 inches) in length — in the internal bicipital fossa, along the inner border of the biceps tendon — its center corresponding to the " fold of the elbow." This incision will be oblique and its upper end will commence opposite the tip of the internal condyle of the humerus. It is well to compress the veins above, to get an idea of their position at the elbow, 66 OPERATIONS UPON THE ARTERIES. and thus avoid them, if possible. Ordinarily the incision will lie above and to the outer side of the median basilic (Fig. 23, E). Operation. — Having incised skin and superficial fascia, isolate the median basilic vein and accompanying internal cutaneous nerve and retract them inward (Fig. 28). Incise, in the direction of the original wound, the deep fascia and the bicipital fascia — the latter (passing inward and downward) is to be incised to as limited an extent as possible. Beneath the bicipital fascia lies the artery, with its vense comites — the median nerve generally lying out of the way and to the inner side, nearer the upper than the lower part of the Fig. 20 — Cross-section of Right Arm just below the Elbow-joint : — A, Brachial artery dividing into radial and ulnar, with vena; comites; B, Median basilic vein; C, Radial recurrent artery and radial and interosseous nerves; D, Ulnar nerve and posterior ulnar recurrent artery; E, Median nerve and anterior ulnar recurrent artery; F, Biceps tendon; G, Supinator longus muscle; H, Extensor carpi radialis longior; I, Extensor carpi radialis brevior; J, Extensor carpi ulnaris; K, Anconeus; L, Pronator radii teres; M, Flexor sublimis digitorum; N, Flexor carpi ulnaris (a fascial line is seen between its two parts). The brachialis anticus muscle lies just below the brachial artery. The flexor carpi radialis lies just to the right of the pronator radii teres. (The cross-section modified from Braune.) wound. Pass the needle from the side of the ulnar nerve, bicipital fascia with gut (Fig. 29). Resuture the SURGICAL ANATOMY OF RADIAL ARTERY. Description. — Smaller but more direct of two divisions of brachial. Begins at bifurcation of brachial, about 1.3 cm. (J inch) below bend of elbow — runs outward and downward along radial side of forearm to styloid process of radius — thence passes around outer side of carpus over external lateral ligament and beneath extensor tendons of thumb, to back of wrist — and enters palm between first and second metacarpal bones, passing between the two heads of first dorsal interosseous muscle — thence crosses metacarpal SURGICAL ANATOMY OF RADIAL ARTERY. 67 bones and interossei muscles, anastomosing at ulnar side of hand with deep branch of ulnar, to form deep palmar arch. The artery is accompanied by two vena? comites. Relations. — (a) In Forearm : — The artery runs in outermost intermuscu- lar space, lying between supinator longus and pronator radii teres above, and between supinator longus and tendon of flexor carpi radialis below. Ante- riorly — skin; fascia; supinator longus (above). Skin; fascia; cutaneous vessels and nerves (below). Posteriorly — (from above downward) tendon of biceps; supinator brevis; insertion of pronator radii teres; radial origin of flexor sublimis digitorum; flexor longus pollicis; pronator quadratus; anterior surface of lower end of radius. Externally — supinator longus (guide to arterv) and external vena comes (throughout) ; radial nerve (middle third). Internally — pronator radii teres (upper third); tendon flexor carpi radialis (lower third); internal vena comes (throughout), (b) At Wrist: — The artery winds over outer side of carpus, from a point just below and internal to stvloid process of radius, to base of first interosseous space, entering the palm between the two heads of the first dorsal interosseous muscle (ab- ductor indicis) to form the deep palmar arch. It is covered, successively, by extensor ossis metacarpi pollicis; extensor brevis pollicis; branches of radial nerve; superficial radial veins; extensor longus pollicis; — and rests, in order, upon external lateral ligament; scaphoid; trapezium; base of first metacarpal; dorsal carpal ligaments. It is accompanied by two vena? comites and branches of musculocutaneous nerve, (c) In the Palm : — Enters palm in upper part of interval between first and second metacarpals, passing between two heads of first dorsal interosseous muscle (abductor indicis) — runs inward between adductor obliquus pollicis and adductor transversus pollicis — crossing the palm transversely, with slight downward curve, to base of metacarpal of little finger, and there anastomoses with deep branch of ulnar, forming the deep palmar arch. The deep palmar arch, therefore, extends from base of first interosseous space to base of metacarpal of little finger, and is about 2 cm. (f inch) nearer the wrist than is the superficial palmar arch. It is covered by the superficial and deep flexor tendons; ad- ductor obliquus pollicis; part of flexor brevis minimi digiti; part of opponens minimi digiti; lumbricales. It rests upon adductor transversus pollicis; carpal extremities of metacarpal bones; interossei muscles. It is accom- panied by two vena? comites and the deep branch of the ulnar nerve (running in opposite direction). Branches. — (a) In Forearm — radial recurrent; muscular; anterior radial carpal; superficialis vola?. (b) At Wrist — posterior radial carpal; metacarpal (first dorsal interosseous); dorsalis pollicis; dorsalis indicis. (c) In Palm — princeps pollicis; radialis indicis; palmar interosseous; recurrent; per- forating. Line of Artery. — (a) In Forearm (with hand supine) — from center of bend of elbow, to inner side of forepart of stvloid process of radius (Fig. 30, H and I), (b) At Wrist — from inner side of forepart of styloid process to base of first interosseous space, (c) In Palm — runs about 2 cm. (f inch) nearer wrist than does superficial palmar arch (which corresponds with a line continued across on level with lower border of outstretched thumb). Sites for Ligature. — Upper forearm (rarely); middle forearm; lower forearm (preferably); back of hand (rarely). In palm — the arch may be tied in case of wounds, under which circumstances it may be ligated at any site (Fig. 30, A, B, C, D). Anatomy of the " Tabatiere," or " Snuff-box." — The triangular 68 OPERATIONS UPON THE ARTERIES. space on back of hand — bounded, on radial side, by extensor ossis metacarpi pollicis, and extensor brevis pollicis; — on ulnar side, by extensor longus polli- cis; — above, by lower edge of posterior annular ligament. Its floor is formed by trapezium, part of scaphoid, base of first metacarpal. It con- tains radial artery, cephalic vein of thumb, branch of internal division of radial nerve, branch of musculocutaneous nerve. Fig. 30.— Incisions for Ligating Right Radial and Ulnar Arteries, and Superficial and Deep Palmar Arches :— A, Ligation of radial in upper third of forearm ; B, of radial in middle third; C, of radial in lower third; D, of deep palmar arch ; E, Ligation of ulnar in middle third of forearm; F, of ulnar in lower third ; G, of superficial palmar arch; H, Center of bend of elbow ; I, Antero-internal aspect of styloid process of radius; J, Radial sideof pisiform bone; K, Anterior aspect of inner condyle of humerus; L, Point on inner aspect of forearm at junction of upper and middle, thirds. LIGATION OF RADIAL ARTERY. 69 Fig. 31. — Ligation of the Right Radial Artery in the Upper Part of the Forearm: — A, Radial artery; B, Radial vena? comites; C, Radial nerve; D, Supinator longus muscle; E, Pronator radii teres muscle; F, Flexor carpi radialis muscle. (Modified from Deaver.) LIGATION OF RADIAL ARTERY IN UPPER THIRD OP" FOREARM. Position. — Hand supine; wrist extended. Surgeon stands outside of limb, cutting downward on right and upward on left. Assistant holds fingers with one hand and grasps forearm with other. Landmarks. — Line of artery; inner border of supinator longus. Incision. — From 5 to 7.5 cm. (2 to 3 inches), in line of artery — with center over the point to be tied (Fig. 30, A). Operation. — Having incised skin and superficial fascia, the radial or median vein may be met. Divide the deep fascia and open up the space between the supinator longus (fibers running directly downward) and the pronator radii teres (fibers running downward and outward) (Fig. 31). The artery lies under the edge of the supinator longus and upon the inser- tion of the pronator radii teres. The radial nerve lies well to the outer side. Comment. — Unless one recognize the inner margin of the supinator longus, there is possibility of hitting off the wrong intermuscular septum and getting too near the middle of the forearm. The anterior surface of the supinator longus (and not its. inner border) appears at first, in operating upon 7o OPERATIONS UPON THE ARTERIES. the muscular — and this must be well retracted outward. Note. — Ligation of the middle third of the radial amounts to a downward extension of the follow- ing operation {v. s.), or an upward extension of the following operation (v. i.). The vessel is found at the inner margin of the supinator longus, resting upon the flexor sublimis digitorum and tlexor longus pollicis. Fig. 32. — Cross-section of the Upper Third of the Right Forearm: — A, Radial artery and branches, veins, and nerve; B, Ulnar and interosseous arteries, veins, and median nerve; C, Ulnar nerve; D, Pronator radii teres muscle; E, Flexor carpi radialis; F, Subcutaneous vein and nerve, G, Flexor profundus digitorum; H, Flexor carpi ulnaris; I, Anconeus; J, Supinator longus; K, Extensor carpi radialis longior; L, Supinator brevis; M, Extensor carpi radialis brevior; N, Extensor communis digitorum; O, Extensor carpi ulnaris. (Cross-section modified from Braune.) LIGATION OF RADIAL ARTERY IN LOWER THIRD OF FOREARM. Position. — As for upper third. Landmarks. — Tendons of supinator longus and flexor carpi radialis. Incision. — From 2.5 to 5 cm. (1 to 2 inches), vertically, in center of interval between tendons of supinator longus and flexor carpi radialis (Fig. 30, C). Operation. — Having incised skin and superficial fascia, the radial vein, or a large branch, and often the superficialis volse artery, are met and are displaced to one side (Fig. 33). The deep fascia is divided, and the interval between the tendon of the supinator longus, externally, and the tendon of the flexor carpi radialis, internally, is opened up and the artery and its venae comites are found between them, accompanied by the anterior branch of the musculocutaneous nerve. LIGATION OF RADIAL ARTERY. 71 Fig. 33.— Ligation ok Lower Third of Right Radial (Jtst above Wrist) :— A, Radial vein; B, Anterior branch of musculocutaneous nerve; C, Supinator longus tendon ; D, Flexor carpi radialis tendon ; E, Pronator quadratus ; F, Radial artery ; G, Superficialis volae artery ; H, H, Radial venae comites. Fig. 34. — Cross-section of the Lower Third of the Right Forearm: — A, Radial artery and veins; B, Ulnar artery, veins, and nerve; C, Anterior interosseous artery; D, Posterior interosseous artery; E, Median nerve; F, Flexor sublimis digitorum muscle; H, Flexor digitorum profundus; I, Flexor longus pollicis; J, Pronator quadratus; K, Extensor indicis pollicis; L, Extensor proprius pollicis; M, Extensor indicis; X, Extensor communis digitorum; O, Supinator longus tendon; P, Flexor carpi radialis. (The cross-section modified from Braune.) 7 2 OPERATIONS UPON THE ARTERIES. r F'g- 35- — Ligation of Left Superficial and Deep Palmar Arches: — A, Annular liga- ment; B, Flexor brevis pollicis (part of its origin from annular ligament incised) ; C, Tendons of flexor sublimis digitorum and outer lumbrical (drawn inward); 1), Adductor obliquus pollicis; E, Adductor transversus pollicis; F, F, Branches of median nerve ; H, H, Superficial palmar arch ; G, Deep palmar arch and its vena; comites ; I, I, Superficial vein. LIGATION OF DEEP PALMAR ARCH OF RADIAL ARTERY. Position. — Limb supine; hand extended. Assistant steadying fingers and wrist. Surgeon cuts from above downward on both sides. Landmarks. — Oblique crease running downward and outward from junction of thenar and hypothenar eminences and partially circumscribing the thenar eminence. Incision. — From junction of the thenar and hypothenar eminences — and running along the thenar crease toward the metacarpo-phalangeal joint of the index-finger — with the center of the incision opposite the center of the ball of the thumb (Fig. 30, D). SURGICAL ANATOMY OF ULNAR ARTERY. 73 Operation. — Having incised skin and superficial fascia, expose and ligate the superficial palmar arch (crossing the palm on a level with the lower border of the outstretched thumb) (Fig. 35). The muscles of the thenar eminence are now exposed, and these, with the annular ligament, are incised at the upper part of the wound to as limited an extent as possible. The interval between the flexor tendon of the index-finger and its accompanying lumbrical muscle, on the one hand, and the muscles of the thumb, on the other, is made out and opened up by deep retraction, guarding the branches of the median nerve. In the interval thus exposed by retraction is seen the adductor obliquus pollicis, which is to be divided vertically, w hen the arch will be found under it, running transversely from between the adductor obliquus pollicis and adductor transversus pollicis onto the deep fascia covering the interossei, and about 2 cm. (f inch) nearer the wrist than does the super- ficial arch. The needle is to be carefully passed in the deep wound, to avoid the nerves and veins. Comment. — The position for ligating can be located by feeling for the apex of the first interosseous space on the back of the hand. SURGICAL ANATOMY OF ULNAR ARTERY. Description. — Larger of two divisions of brachial artery. Begins at bifurcation of brachial, about 1.3 cm. (J inch) below bend of elbow, and in middle of forearm — runs through upper half of forearm, with slight curve (convexity to ulnar side), to ulnar aspect of limb, passing beneath the pronator radii teres and superficial flexors — thence vertically down the lower half of the forearm, along its ulnar border to the wrist, being slightly overlapped by the flexor carpi ulnaris. It crosses the annular ligament immediately to the radial side of the pisiform bone, and, entering the palm, divides into superficial and deep palmar branches, to help form superficial and deep palmar arches. It is accompanied by two vena? comites. The ulnar nerve comes into contact with the artery at the junction of its upper and middle thirds, and remains in relation with it to the palm, being upon its ulnar side. Relations. — (A) In Forearm: — Anteriorly — (a) Above — skin; fascia; superficial flexors (pronator radii teres, flexor carpi radialis, palmaris longus, flexor sublimis digitorum) ; median nerve (separated from artery by deep head of pronator radii teres), (b) Upper part of lower half — skin; fascia; and overlapped by tendon of flexor carpi ulnaris. (c) Lower part of lower half — skin; superficial fascia; deep fascia; palmar cutaneous branch of ulnar nerve. Posteriorly — brachialis anticus; flexor profundus digitorum. Ex- ternally — flexor sublimis digitorum (in lower two-thirds of artery's course). Internally — flexor carpi ulnaris (in lower two-thirds) ; ulnar nerve (in lower two-thirds). (B) At Wrist : — This part of the artery extends from the upper to the lower part of the annular ligament, running in a channel formed by the pisiform and unciform process of unciform bone and by expansion of flexor carpi ulnaris extending from pisiform to unciform process. Ante- riorly — skin; fascia; expansion of flexor carpi ulnaris from pisiform to unci- form process of unciform. Posteriorly — anterior annular ligament. Ex- ternally — unciform process of unciform bone. Internally — pisiform bone; ulnar nerve. (C) In Palm : — On entering the palm, the ulnar divides into superficial branch and deep branch: — (1) Superficial branch of ulnar — direct continuation of ulnar artery — descends short distance toward gap 74 OPERATIONS UPON THE ARTERIES. between fourth and fifth fingers, thence curves outward (with convexity toward fingers) and anastomoses opposite gap between index and middle finger, and at junction of upper and middle thirds of hand, with superficialis vola? of radial (sometimes with branch from radialis indicis of radial) to form superficial palmar arch — having following relations: Anteriorly — skin; fascia; and, from ulnar to radial side, by palmaris brevis, palmar branch of ulnar nerve, palmar fascia, palmar branch of median nerve. Posteriorly — in order, from ulnar to radial side — annular ligament; short muscles of little finger; digital branches of ulnar nerve; superficial flexor tendons; digital branches of median nerve. (2) Deep (communicating) branch of ulnar artery — runs deeply inward, between abductor minimi digiti and flexor brevis minimi digiti — anastomosing with termination of radial to form deep palmar arch. Branches. — (a) In Forearm — anterior ulnar recurrent; posterior ulnar recurrent; common interosseous (anterior and posterior interosseous); mus- cular, (b) At Wrist — anterior ulnar carpal; posterior ulnar carpal, (c) In Palm — superficial palmar arch; deep (communicating) palmar. Line of Artery. — Upper third of artery corresponds with line from a point about 1.3 cm. (h inch) below center of bend of elbow, passing to inner side with gentle curve (convexity to ulnar side), to a point at junction of upper and middle thirds of following line. Lower two-thirds corresponds with line from anterior surface of internal condyle of humerus to radial side of pisiform bone (Fig. 30, H, L, and K, J). Sites for Ligation. — Upper third of forearm (rarely) ; middle third; lower third (commonly); superficial palmar arch (for wounds at that site). (Fig. 3°-) LIGATION OF ULNAR ARTERY IN MIDDLE THIRD OF FOREARM. Position. — As for the radial artery. Landmarks. — Line of artery. The muscular landmarks at the middle of the forearm are generally difficult to recognize. Incision. — About 7.5 cm. (3 inches), in line of artery, with its center corresponding with the center of the forearm (Fig. 30, E). Operation. — Incise skin and superficial fascia. The anterior ulnar vein and anterior branch of internal cutaneous nerve are likely to be encountered (Fig. 36). Divide the deep fascia somewhat to the outer side of the skin incision, as the flexor sublimis digitorum is generally slightly overlapped by the flexor carpi ulnaris. In this deep fascia the intermuscular plane between the flexor carpi ulnaris and flexor sublimis digitorum is sought by exposure and by the sense of touch. A muscular branch will often lead to it. These muscles are retracted well apart, when the ulnar nerve is first encountered between them — and, following inward on the same plane, the artery will be found upon the flexor profundus, surrounded by the venae comites, and with the ulnar nerve to the ulnar side. Comment. — It is sometimes exceedingly difficult to hit off the intermuscular space, and even to find the artery when once in it. Remember that the anterior margin of the flexor carpi ulnaris slightly overlaps the flexor sublimis digitorum at this level. Also remember, when once in the intermuscular space, not to pass below the ulnar nerve, and thus go too deeply on the ulnar side of the forearm, but rather work inward from the level of the nerve. LIGATION OF ULNAR ARTERY. 75 Fig. 36. — Ligation of Right Ulnar in Upper Part of Middle Third: — A, Anterior ulnar vein; B, Anterior branch of internal cutaneous nerve; C, Flexor carpi ulnaris; D, Flexor sublimis digitorum; E, Flexor profundus digitorum; F, Ulnar nerve; G, Ulnar artery; H, Vena? comites. Fig- 37- — Ligation of Lower Third of Right Ulnar (Just above the Wrist): — A, Anterior ulnar vein; C, Tendon of flexor carpi ulnaris; D, Tendon of flexor sublimis digitorum: E, Ulnar artery; G, Ulnar vena; comites; H, Ulnar nerve. 76 OPERATIONS UPON THE ARTERIES. LIGATION OF ULNAR ARTERY IN LOWER THIRD OF FOREARM. Position. — As for radial. Landmarks. — Outer border of flexor carpi ulnaris. Incision. — About 5 cm. (2 inches) in length— ending about 2.5 cm. (1 inch) above the pisiform bone — and placed between the tendon of the flexor carpi ulnaris and the innermost tendon of the flexor sublimis digitorum. (As the innermost tendon of the flexor sublimis digitorum is not always recognizable, the incision is generally placed to the outer side of the tendon of the flexor carpi ulnaris.) (Fig. 30, F.) Operation. — Having incised skin and superficial fascia, avoid the anterior ulnar vein or its branches (Fig. 37). Divide the deep fascia. Partly flex the wrist to relax the structures, and retract the flexor carpi ulnaris to the ulnar side. The artery will be found upon the flexor profoundus digitorum, with the venae comites closely surrounding it, and the ulnar nerve lying closely to the ulnar side. SURGICAL ANATOMY OF INTERCOSTAL BRANCHES OF THORACIC AORTA. Description. — The ten aortic intercostals generally supply from the third to eleventh intercostal spaces inclusive— the first space being supplied by superior intercostal alone — and the second space also by superior inter- costal alone, or conjointly by it and the first aortic intercostal. The tenth aortic intercostal runs below the twelfth rib (subcostal artery), (a) The Ver- tebral Portions of the Intercostal Arteries, arising in pairs from the posterior part of the thoracic aorta, pass around the vertebne — the right being covered by thoracic duct, vena azygos major, pleura, lung, esophagus— the left, by vena azygos minor, left superior intercostal vein, third vena azygos pleura, lung. The arteries here divide into posterior or dorsal, and anterior or intercostal branches, (b) The Intercostal Portions run forward and obliquely upward in the intercostal space to the lower border of the superior rib, and divide near the angle of the rib into upper (larger) and lower (smaller) branches — the former, to run in the groove along the lower border of the upper rib and anastomose with the superior intercostal branch of the internal mammary in the upper spaces, and of the musculophrenic in the lower — the latter, to run along the upper border of the lower rib and anastomose with the inferior branch of the internal mammary in the upper spaces, and of the musculophrenic in the lower. At first these arteries lie between pleurae, lungs, endothoracic fascia, and infracostals internally — and external inter- costal muscles externally — then (from the angles of the ribs) between the external and internal intercostal muscles. The sympathetic nerve crosses them opposite the head of the ribs. The intercostal vein lies above and the intercostal nerve below the intercostal arteries — except in the upper spaces. The arteries of the tenth and eleventh spaces run outward between the abdominal muscles. LIGATION OF AN INTERCOSTAL ARTERY BY AN INTERCOSTAL INCISION. Position. — Patient supine, and so turned as to render site of operation prominent, and chest supported below, so as to increase width of intercostal spaces. Surgeon stands on side of operation. Assistant opposite. LIGATION OF AN INTERCOSTAL ARTERY. 77 Landmarks. — Lower border of rib in the groove of which the special artery runs; or the upper border, in case it be the lower branch of the inter- costal artery. Incision. — About 5 cm. (2 inches), parallel with and just below the lower border of the indicated rib; or just above the upper border, as the case may be. Operation. — Incise skin and superficial fascia. As to what muscle, and as to what amount of muscle tissue, as well as fascia, will have to be further incised in the line of the original incision, before the intercostal muscles are reached, will depend upon the site at which the artery is to be exposed. Having passed through the overlying muscle-covering of the thoracic wall, the inter- costal fascia is met and incised, then the external intercostal muscle (if operat- ing anywhere between the tubercles of the ribs behind, and the costal car- tilages in front). The two cut margins of the external intercostals are then drawn upward and downward and the artery sought as it lies partially or entirely concealed in the inferior intercostal groove, with intercostal nerve below and vein above. The artery may be drawn out of its groove and down into view by the curved tip of the aneurism-needle. The vessel should be doubly ligated (its supply coming from both directions). The incised inter- costal muscle and fascia may be sutured with gut in closing the wound. Comment. — (1) If difficulty in exposing the artery be experienced, the rib may be exposed subperiosteally, as in the following operation. (2) It is to be remembered, in operating posterior to the angle of the rib, that the intercostal artery has not yet reached the inferior groove of the upper rib, but lies between the two ribs, and has not divided into its upper and lower branches. (3) If it be desired to ligate the upper and lower branches of the intercostal (anywhere between the angle and costal cartilages), the incision is made midway between the ribs, and, after retracting the cut external intercostal muscle, the upper branch is sought as above, and the lower branch is found along the upper border of the lower rib. Both are doubly ligated. The upper intercostal artery is often so small as to be difficult or impossible to find. Fig. 38. — Ligation of Left Intercostal Artery, in Lower Anterior Thoracic Region, by Partial Excision of a Rib: — A, Thoracic muscles; B, External intercostal muscle; C, Rib, with half-button of bone bitten out with rongeur forceps; D, Periosteum, incised over center of rib; E, Lower half of anterior layer of periosteum retracted downward ; F, F, Posterior layer oi peri- osteum incised and retracted upward and downward, showing intercostal vessels beneath; G, Inter- costal artery ; H, Intercostal vein ; I, Intercostal nerve. (Hartley's method.) 78 OPERATIONS UPON THE ARTERIES. LIGATION OF AN INTERCOSTAL ARTERY BY PARTIAL, SUBPERIOSTEAL EXCISION OF RIB (HARTLEY'S METHOD.) Position — Landmarks. — As in the preceding operation. Incision.- — About 6 cm. (2^ inches), parallel with and directly over center of rib. Operation. — The above incision passes through skin, superficial fascia, any overlying thoracic muscles (according to site of operation), deep fascia and periosteum (Fig. 38). With periosteal elevator, free the lower half of the anterior surface, the inferior groove, and the lower half of the posterior sur- face of the rib, all subperiosteally. Then, with rongeur bone-forceps, bite out a "half -button" of bone from the bared lower half of the rib, being careful to insert the lower blade of the rongeur between the detached peri- osteum and the rib. After the half-button of bone is removed, the position of the artery is plainly evident— and the vessel is exposed by incising through the periosteal membrane, directly over it. Comment. — The artery may also be exposed by the ordinary method of subperiosteal excision of about 4 cm. (ij inches) of rib throughout its entire thickness. SURGICAL ANATOMY OF ABDOMINAL AORTA. Description. — Continuation of thoracic aorta. Commences at aortic opening of diaphragm, opposite lower border of twelfth dorsal vertebra — and passes down between pillars of diaphragm, in front of lumbar vertebrae, at first in median line, but deviating to left as it descends, until it lies a little to left of spine at its point of bifurcation, opposite lower border of fourth lumbar vertebra, where it divides into right and left common iliac arteries. Its point of bifurcation is represented externally, roughly, by a point about 1.3 cm. (^ inch) below and a little to left of umbilicus — and, more accurately, by a line crossing the abdomen on a level with the highest points of the iliac crests. The accompanying vena cava is separated from the aorta above by the right crus of the diaphragm, and is on a plane anterior to it. Below, the vein lies in contact with the artery, and on a somewhat posterior plane. The artery is covered only by peritoneum at the site indicated for ligation, but between the serous covering and the artery lie important sympathetic nerve-cords from the aortic plexus (lying along the aorta between the superior and inferior mesenteric arteries) to the hypogastric plexus (lying between the common iliacs). Relations. — Anteriorly (from above downward, in order) : right lobe of liver; solar plexus; lesser omentum; termination of esophagus in stomach; ascending layer of transverse mesocolon; splenic vein (or beginning of vena portae); pancreas; left renal vein; third part of duodenum; mesentery; aortic plexus of sympathetic; spermatic (or ovarian) arteries; inferior mesenteric artery; median lumbar lymphatic glands and vessels; small intestines. Pos- teriorly: bodies of lumbar vertebrae; intervening intervertebral cartilages; anterior common ligament; left crus of diaphragm; left lumbar veins. To right: right crus of diaphragm; great splanchnic nerve; spigelian lobe of liver; receptaculum chyli (on a posterior plane); thoracic duct (on a posterior plane); right semilunar ganglion; inferior vena cava; vena azygos major. To left: left crus of diaphragm; left splanchnic nerve; left semilunar gan- glion; tail of pancreas; small intestines. LIGATION OF ABDOMINAL AORTA. 79 Branches. — (From above downward.) Phrenic, coeliac axis (gastric, hepatic, splenic); suprarenals; first lumbars, superior mesenteric; renals; spermatics (ovarians) ; second lumbars; inferior mesenteric; third lumbars; fourth lumbars; common iliacs; middle sacral. Line of Artery. — From a point in the anterior median line, on a level with the lower border of twelfth dorsal vertebra, to a point a little to left of umbilicus, on a level with the highest points of the iliac crests. Indications for Ligation. — Iliac and inguinal aneurisms and primary and secondary hemorrhage — in cases where no other means are possible. More than a dozen cases have been reported — one case living ten days. Sites for Ligation. — Between the origin of the inferior mesenteric (be- tween 2.5 and 5 cm., or 1 and 2 inches, above the bifurcation) and the bifurca- tion (Fig. 39). Fig- 39- — Incisions for Ligations in the Abdomino-pelvic Region:— A, Exposure of abdominal aorta by transperitoneal route, through median incision over umbilicus; B, Exposure of internal iliac, common iliac, and abdominal aorta by retroperitoneal route, through oblique incision parallel with Poupart's ligament ; C, Exposure of external, internal, and common iliacs by transperi- toneal route, through median incision below umbilicus ; D, of external and deep epigastric, retro- peritoneally, through oblique incision parallel with Poupart's ligament ; E, of common, internal, and external iliacs, transperitoneally, through vertical incision in linea semilunaris; F, of external iliac, transperitoneally, through intramuscular incision ; G, G, Anterior superior iliac spines; H, Symphysis pubis. LIGATION OF ABDOMINAL AORTA BV TRANSPERITONEAL .METHOD. Description. — The abdomen is opened in the median line, the intestines displaced, and the posterior parietal peritoneum opened over the artery. Position. — Patient supine; shoulders raised; knees slightly flexed. Surgeon on right. Assistant opposite. 80 OPERATIONS UPON THE ARTERIES. Landmarks. — Median, vertical abdominal line; transverse line on level with highest points of iliac crests. Incision. — About 10 cm. (4 inches) in length, in linca alba, with its center corresponding with the umbilicus — the incision passing slightly to left of the navel, to avoid the round ligament of the liver and the urachus (Fig. 39, A). Operation. — The peritoneal cavity having been opened in the usual manner, the small intestines and. mesentery are well retracted upward and to the sides. Guided to the artery by its known position and by its pulsation, the peritoneum covering the vessel is carefully divided between the inferior mesenteric and its bifurcation in the iliacs. The clearing of the artery should be done with especial care, as inclusion of the sympathetic nerve-fibers (see Surgical Anatomy) is otherwise apt to take place — and is supposed to have been done in one case, which quickly ended fatally. A flat ligature should be used (kangaroo tendon, chromicized gut and silk, flat and round, have been used). The needle should be of special make and shape, and should be passed from the inferior vena cava. Comment. — This is the more desirable form of operation, though the case which survived longest was done through a posterior retroperitoneal incision. Collateral Circulation. — Internal mammary, above; with deep epi- gastric, below. Inferior mesenteric, above; with internal pudic, below. Possibly by lumbar arteries, above; with branches of internal iliac, below. And, if above the inferior mesenteric, by superior mesenteric, above; with inferior mesenteric, below. LIGATION OF ABDOMINAL AORTA BY RETROPERITONEAL OPERATION. Description. — The artery is here approached from the anterolateral abdominal region, the peritoneum being pushed back from the iliac vessels until the aorta is reached and exposed. Position — Landmarks — Incision — Operation. — The operation is prac- tically similar to that for the exposure and ligation of the common iliac extra- peritoneally, the site being reached by an extension of those steps (Fig. 39, B, except on left side, and Fig. 40). The patient is placed so as to be tilted toward the right side, the surgeon standing behind the patient, upon the side of the operation (the left). An extension of the incision employed for the common iliac is carried further upward to give the necessary room; and, if still required, additional room may be gotten by a second incision running parallel with the ribs, at a right angle to the main incision. The incision is made upon the left side — its general direction being from just within the anterior superior iliac spine toward the tip of the tenth rib — and the aorta is reached by following up the common iliac in the peeling back of the peritoneum from the iliac fascia The separation of the parts and exposure of the common iliac are, otherwise, the same as for the ligation of that vessel. The vessel is thus less satis- factorily exposed than by the intra-abdominal operation, and there is greater difficulty in avoiding the sympathetic nerve-cords that surround the vessel. The ligature is placed upon the same site as in the intra-abdominal operation, and the inferior vena cava is guarded in passing the needle. LIGATION OF COMMON ILIAC ARTERY. 8 1 SURGICAL ANATOMY OF COMMON ILIAC ARTERIES. Description. — Arise from bifurcation of the abdominal aorta, opposite lower border of left side of body of fourth lumbar vertebra (corresponding, approximately, to a point about 1.3 cm. [h inch] below and a little to left of umbilicus — or, more accurately, on a level with a line passing transversely through the highest points of the iliac crests) — and pass thence downward and outward over the body of the fifth lumbar vertebra to margin of pelvis, bifurcating opposite upper border of sacro-iliac synchondrosis, into external and internal iliac arteries. The relations of right and left common iliacs differ slightly. Relations of Right Common Iliac Artery. — Anteriorly: peritoneum; right ureter (a little above its bifurcation) ; ovaries (in female) ; termination of ileum; terminal branches of superior mesenteric; branches of sympathetic to hypogastric plexus. Posteriorly: right common iliac vein; end of left common iliac vein; beginning of inferior vena cava; and, in less immediate relationship, the following — psoas magnus; sympathetic nerve; lumbosacral cord; obturator nerve; iliolumbar artery. Externally: beginning of inferior vena cava; end of right common iliac vein; psoas magnus. Internally: right common iliac vein; end of left common iliac vein; hypogastric plexus. Relations of Left Common Iliac Artery.— Anteriorly : peritoneum; small intestines; ureter; ovarian artery (in female); branches of sympathetic to hypogastric plexus; termination of inferior mesenteric artery; sigmoid flexure; sigmoid mesocolon; superior hemorrhoidal artery. Posteriorly: lower part of body of fourth lumbar vertebra; fifth lumbar vertebra; inter- vertebral discs; left common iliac vein; and, in less immediate relationship, the following — psoas muscle; obturator nerve; lumbosacral cord; iliolumbar artery. Externally: psoas muscle. Internally: left common iliac vein; hypogastric plexus; middle sacral artery. Branches. — Peritoneal; subperitoneal; ureteric; internal iliac; external iliac. Line of Artery. — Draw a line transversely across the abdomen, on level with highest points of iliac crests, which will cross the abdominal aorta at its bifurcation — draw a second line transversely across the abdomen on a level with the anterior superior iliac spines, which will cross the common iliacs at their bifurcation — draw a third line from a point on the first line about 1.3 cm. (h inch) to the left of its center (which is the linea alba), to a point midway between the anttrior superior iliac spine and symphysis pubis. That portion of the third line between the two zones represents the common iliac— and that portion below the lower zone, the external iliac. The right common iliac is about 5 cm. (2 inches) in length; and the left, about 4.5 cm. (if inches). Site for Ligation. — As nearly midway of its length as possible. LIGATION OF COMMON ILIAC ARTERY BV RETROPERITONEAL OPERATION. Position. — Patient supine, or slightly turned to one side. The intes- tines are more easily displaced from the field of operation if the patient be in the Trendelenburg position. Surgeon stands upon side of operation. Assistant opposite. Landmarks. — Line of external iliac (v. s.); Poupart's ligament; anterior superior spine of ilium; eleventh rib. 6 82 OPERATIONS UPON THE ARTERIES. Incision. — Begun as for exposure of external iliac (page 89) and con- tinued in the cleavage line of the external oblique as far upward toward the eleventh rib as necessary to furnish sufficient room (Fig. 39, B). Operation. — The steps of the operation are identical with those for exposure of the external iliac (page 89), with an extension upward, in the present operation, of the separation of the fibers of the external oblique and a division of the fibers of the internal oblique and transversalis as far Fig. 40. — Ligation of Right Common and Internal Iliacs, Retroperitoneally : — A, A, External oblique muscle and aponeurosis; B, Internal oblique; C, Transversalis; D, Conjoint ten- don ; E, E, Peritoneum retracted ; F, Ureter, retracted. ; G. Common iliac artery (sheath incised) ; H, Internal iliac artery (sheath incised) ; I, External iliac artery ; J, External and internal iliac veins; K, K, Deep epigastric artery ; L, Deep circumflex iliac artery; M, Lumbar artery ; N, Iliolumbar artery; O, Spermatic artery; P, Anterior crural nerve; Q, Ilio-inguinal nerve; R, Genitocrural nerve; S, External cutaneous nerve; T, Iliac fascia; M, Lumbar artery and iliohypogastric (or dorsal) nerve. up toward the eleventh rib as necessary — the incision of the two latter muscles corresponding in direction with the separation of the fibers of the external oblique (Fig. 40). In this higher part of the wound the last dorsal and other dorsal nerves are apt to be encountered between the internal oblique and transversalis, and are to be carefully preserved. The deep circumflex iliac artery and the lumbar arteries are apt to be met here above the crest of the ilium. Having divided the transversalis fascia and separated the peritoneum from the iliac fascia (which overlies the iliacus muscle), detaching it downward and backward to the psoas muscle and then upward to the SURGICAL ANATOMY OF INTERNAL ILIAC ARTERY. 83 sacral promontory, the structures in the floor of the iliac fossa are exposed. The external iliac artery is first found, and this is followed up to the common iliac, guarding the deep epigastric. The genitocrural, external cutaneous, and anterior crural nerves, branch of the iliolumbar, and the spermatic arteries cross this area. The ureter crosses either the common iliac, or the external iliac, obliquely, opposite the first piece of the sacrum, having the ileum in front of it on the right, and the sigmoid flexure of the colon in front of it on the left; but in the peeling back of the peritoneum the ureter usually adheres to the peritoneum, and is thus removed from the area of operation without trouble. The artery having been reached and bared of peritoneum, the needle is passed from the iliac vein. Comment. — The line of incision may begin further to the outer side of the external iliac than for the typical operation upon that artery, though that vessel is then a little less easily encountered. As to a choice between the extraperitoneal and intraperitoneal operations, the former is to be pre- ferred wherever the relations of the parts are not too much disturbed by disease or injury. Collateral Circulation. — Internal mammary and lower intercostals above, with deep epigastric below. Lumbar above, with deep circumflex iliac and iliolumbar below. Superior hemorrhoidal above, with middle and inferior hemorrhoidal below. Aliddle sacral above, with lateral sacral below. Pudic, epigastric, obturator and epigastric branches of one side, with corre- sponding arteries of other side. LIGATION OF COMMON ILIAC ARTERY BY TRANSPERITONEAL OPERATION. Position — Landmarks — Incision — Operation. — The steps are prac- tically the same as for the transperitoneal ligation of the abdominal aorta, though somewhat less extensive, and with the slight modifications necessitated by the anatomy of the parts (Fig. 39, C). Especial care is taken to recognize the position of the ureter before incising the peritoneum. SURGICAL ANATOMY OF INTERNAL ILIAC ARTERY. Description. — About 4 cm. (1^ inches) in length — arising from bifurca- tion of common iliac, opposite upper border of sacro iliac synchondrosis. Descends in pelvis to upper margin of great sacrosciatic foramen, where it divides into anterior and posterior branches. Relations. — Anteriorly: peritoneum; ureter. Posteriorly: termina- tion of external iliac vein; internal iliac vein; inner border of psoas; lumbo- sacral cord; obturator nerve; sacrum. Externally: psoas. Internally: internal iliac vein; peritoneum. Branches. — From Anterior Trunk: — Hypogastric; superior, middle, and inferior vesical; middle hemorrhoidal; obturator; sciatic; internal pudic; uterine; vaginal. From Posterior Trunk: — Iliolumbar; lateral sacral; glu- teal. Line of Artery. — See under Line of Common Iliac. Indications for Ligation. — Gluteal and sciatic aneurism; hemorrhage; to cause atrophy of prostate gland. Sites for Ligation. — Midway between its origin and its bifurcation. 84 OPERATIONS UPON THE ARTERIES. LIGATION OF INTERNAL ILIAC ARTERY BY RETROPERITONEAL OPERATION. Position — Landmarks — Incision — Operation. — Same as for the retro- peritoneal ligation of the external iliac— which, having been exposed, is followed up to the bifurcation of the common iliac (Fig. 39, B, and Fig. 44)- Collateral Circulation. — Sciatic above, with superior branch of profunda below. Inferior mesenteric above, with hemorrhoidal arteries below. Pubic branch of obturator of one side, with same of opposite. Branches of pudic of one side, with same of opposite. Circumflex and perforating of profunda above, with sciatic and gluteal below. Middle sacral above, with lateral sacral below. Circumflex iliac above, with iliolumbar and gluteal below. LIGATION OF INTERNAL ILIAC ARTERY BY TRANSPERITONEAL OPERATION. Position— Landmarks— Incision— Operation. Same as for the trans- peritoneal ligation of the abdominal aorta, with the modifications necessitated by the anatomy of the parts (Fig. 39, C, and page 80). Recognize the position of the ureter before incising the peritoneum. SURGICAL ANATOMY OF SCIATIC BRANCH OF ANTERIOR DIVISION OF INTERNAL ILIAC. Description and Relations. — Larger of two terminal branches of anterior trunk. Descends over sacral plexus and pyriformis muscle to lower part of great sacrosciatic foramen, whence it passes out of pelvis between pyriformis and coccygeus muscles, with pudic artery anterior and internal to it. Emerging through great sciatic foramen upon buttock, beneath the gluteus maximus, it descends the thigh midway between trochanter major and tuberosity of ischium, resting upon gemellus superior, obturator internus, gemellus inferior, quadratus femoris and adductor magnus — being to inner side of great sciatic nerve and accompanied by small sciatic nerve. Line of Artery. — Having rotated the thigh inward and slightly flexed it, draw a line from the posterior superior iliac spine to the outer border of the tuberosity of the ischium. A point on this line, at the junction of its middle and lower thirds, will represent the site at which the sciatic and pudic arteries emerge from the lower part of the sciatic foramen upon the gluteal region (Fig. 41, A, C, E). Indications for Ligation. — Wounds. Site for Ligation. — At its emergence onto the gluteal region, just below the pyriformis muscle (Fig. 41). LIGATION OF SCIATIC BRANCH OF INTERNAL ILIAC UPON THE BUTTOCK. Position. — Patient upon uninvolved side, rolled nearly onto chest, with knee flexed and thigh rotated in. Surgeon on side of operation; assistant opposite. SURGICAL ANATOMY OF INTERNAL PUDIC ARTERY. 85 Landmarks. — Posterior superior iliac spine; tuberosity of ischium. Incision. — Having drawn the line given under Anatomy, make an in- cision about 10 cm. (4 inches) in length, obliquely across this line, in the direction of the fibers of the gluteus maximus (which run from above and behind, downward and forward) — with its center corresponding to the junc- tion of the middle and lower thirds of the line (Fig. 41, E). Operation. — Having incised skin and thick fatty areolar tissue, divide 9^\ y m , Fig. 41. — Incisions for Ligations about the Buttock : — A, Posterior superior iliac spine ; B, Great trochanter; C, Tuberosity of ischium; D, Incision for exposure of gluteal branch of internal iliac at its emergence from upper part of great sacrosciatic notch ; E, For exposure of sciatic and internal pudic branches of internal iliac at their emergence from lower part of great sacrosciatic notch. the fibers of the gluteus maximus in their cleavage line (Fig. 42, F). Retract the separated margins of this muscle upward and downward, respectively. Expose the lower margin of the pyriformis muscle. Follow the lesser sacro- sciatic ligament to the spine of the ischium — when the sciatic artery will be found emerging from beneath the pyriformis muscle — passing out of the pelvis above the spine of the ischium, and the lesser sacrosciatic ligament attached to it — and lying posterior and external to the pudic artery. SURGICAL ANATOMY OF INTERNAL PUDIC BRANCH OF ANTERIOR DIVISION OF INTERNAL ILIAC. Description. — Smaller of two terminal branches of anterior trunk of internal iliac. Descends over pyriformis and sacral plexus to lower border of great sacrosciatic foramen, lying in front and to inner side of sciatic artery — ■ passes thence out of pelvis between pyriformis and coccygeus — crosses over 86 OPERATIONS UPON THE ARTERIES. outer surface of spine of ischium, under gluteus . maximus, and re-enters pelvis through lesser sciatic notch — passing, thence, forward over obturator interims muscle, along outer wall of ischiorectal fossa, about 4 cm. (i£ inches) above the lower margin of the tuberosity of ischium, and contained in a canal of the obturator fascia. Gradually approaching the border of the ischial ramus, it runs forward and upward — pierces posterior layer of deep perineal fascia, runs forward along inner margin of ramus of pubis, giving off artery of cms penis and artery of bulb between layers of triangular ligament — piercing anterior layer of deep perineal fascia as the dorsal arterv of penis. Relations. — (a) Within Pelvis: — descends over pyriformis muscle and sacral plexus to lower border of great sacrosciatic notch, whence it emerges between pyriformis and coccygeus muscles, together with sciatic artery, pudic nerve, greater and lesser sciatic nerves, and nerve to obturator internus Fig. 42. — Ligation of Right Internal Pudic and Sciatic Arteriks upon the Buttock, be- low the Pyriformis: — A, A, Gluteus maximus (incised and retracted); P>, Pyriformis (lower border retracted upward); C, Obturator internus, with gemellus superior and inferior, above and beli iw ; D, Pudic artery and venae comites ; E, Internal pudic nerve ; F, Sciatic artery and venae com- ites ; G, Small sciatic nerve ; H, Great sciatic nerve. muscle, (b) Crossing Spine of Ischium: — is covered by gluteus maximus and edge of great sacrosciatic ligament. A vena comes is on either side, and the nerve to the obturator internus to the outer side and the pudic nerve to the inner side, (c) On Obturator Internus Muscle: — bound to muscle by sheath of obturator layer of pelvic fascia (Alcock's canal), with dorsal nerve of penis above and superficial perineal nerve below, (d) Between Two Layers of Triangular Ligament: — runs near to ramus of pubis, in substance of com- pressor urethra? muscle. Line of Artery. — See Surgical Anatomy of Sciatic Artery. Indications for Ligation. — Wounds. Sites for Ligation. — Over the spine of the ischium, or in the perineum. (Fig 41, E.) Comment. — The main trunk of the arterv is the same in both sexes. LIGATION OF GLUTEAL BRANCH OF INTERNAL ILIAC ARTERY. 87 LIGATION OF INTERNAL PUDIC BRANCH OF INTERNAL ILIAC UPOX THE BUTTOCK. Position — Landmarks — Incision — Operation. — Same as for Ligation of Sciatic Branch of Internal Iliac upon the Buttock — the arteries lying side by side at their exit from the pelvis, below the lower border of the pyriformis (Fig. 41, E, and Fig. 42, D). LIGATION OF INTERNAL PUDIC BRANCH OF INTERNAL ILIAC IN THE PERINEUM. Position. — Patient in lithotomy position. Surgeon sits facing buttock. Landmarks. — Tuberosity and ascending ramus of ischium. Incision. — Begins about 7.5 cm. (3 inches) above inner border of tuber- osity of ischium and passes downward along the margin of the ascending ramus of the ischium. Operation. — Divide skin and fascia, avoiding inferior pudendal nerve beneath the superficial fascia. The erector penis muscle is exposed (in the male). The transversus perinan is either cut or drawn downward and in- ward. Divide the base of the triangular ligament and adjacent parietal pelvic fascia — when the artery will be found running forward above the pudic nerve, upon the inner surface of the obturator internus muscle, and above the attachment of the great sacrosciatic ligament. SURGICAL ANATOMY OF GLUTEAL BRANCH OF POSTERIOR DIVI- SION OF INTERNAL ILIAC. Description and Relations. — Largest branch of posterior division, of which it is the continuation. Passes backward and downward between first sacral nerve and lumbosacral cord — leaving pelvis through upper part of sacrosciatic notch, above pyriformis, in osseotendinous groove formed by margin of bone and pelvic fascia, accompanied by gluteal vein and superior gluteal nerve, — emerging from the pelvis under the gluteus maximus, where it divides into its branches just above the upper border of the pyriformis muscle. Line of Artery. — Having rotated inward and slightly flexed the thigh, draw a line from the posterior superior iliac spine to the top of the great trochanter. A point on this line at the junction of the upper and middle thirds will correspond with the emergence of the gluteal artery from the sciatic notch (Fig. 41, A, B, D). Indications for Ligation. — Wounds; aneurism. Site for Ligation. — At emergence from sciatic notch, at upper border of pyriformis muscle (Fig. 41). LIGATION OF GLUTEAL BRANCH OF INTERNAL ILIAC ARTERY ON THE BUTTOCK. Position. — Patient on involved side, rolled nearly onto chest; knee flexed; thigh rotated inward. Surgeon on side of operation. Landmarks. — Posterior superior iliac spine; top of great trochanter. 88 OPERATIONS UPON THE ARTERIES. Incision. — Having drawn the line given under Surgical Anatomy, an incision about to cm. (4 inches) in length is drawn along this line, with its center corresponding with the junction of its upper and middle thirds, which will be over the site at which the gluteal artery leaves the sciatic notch (Fig. 41, D). Operation. — After dividing skin, superficial fascia, some superficial nerves, and the fascia of the gluteus maximus, the muscle itself is met, its fibers running parallel with the skin incision (Fig. 43). Incise the muscle- fibers of the gluteus maximus along their cleavage line. Having passed through the thickness of the gluteus maximus, a branch of the gluteal artery will generally lead to the interval between the gluteus medius and pyriformis (which otherwise is sought without this guide). Having divided the fascia over the lower border of the gluteus medius, separate these muscles by re- tractors and expose the upper margin of the sciatic notch by passing the Fig. 43.— Ligation of Right Gluteal Artery upon the Buttock, above the Pyriformis: — A, Deep fascia over gluteus maximus; B, B, Gluteus maximus, incised and retracted; C, Gluteus medius (retracted upward) ; D, Pyriformis (retracted downward i ; E, Fascia between gluteus max- imus and gluteus medius and pyriformis; F, Gluteal artery and vena; comites ; G, Superior gluteal nerve and branches; H, Gluteus minimus. finger under the lower border of the gluteus medius — and through the upper portion of the sciatic notch, between the lower border of the gluteus medius and upper border of the pyriformis, emerge the gluteal artery, vein, and superior gluteal nerve. SURGICAL ANATOMY OF EXTERNAL ILIAC ARTERY. Description. — The larger (in the adult) branch of common iliac. About 9 to 10 cm. (3^ to 4 inches) in length. Arises at bifurcation of common iliac at sacro-iliac synchondrosis — running thence obliquely downward and outward along brim of pelvis, upon inner border of psoas muscle — passing under lower border of Poupart's ligament, midway between anterior superior iliac spine and symphysis pubis, to become femoral. The external iliac vein lies to inner side of artery below, and to inner and posterior aspect above. LIGATION OF EXTERNAL ILIAC. 89 The deep epigastric artery arises about 6 mm. (\ inch) above Poupart's ligament, and runs between transversalis fascia and peritoneum toward the umbilicus. The deep circumflex iliac arises below the deep epigastric, and passes behind Poupart's ligament upon the iliacus muscle. The internal abdominal ring is situated about 1.3 cm. (% inch) above Poupart's ligament, and midway between anterior superior iliac spine and spine of os pubis, and hence just external to course of artery. Relations. — Anteriorly: Parietal peritoneum; subperitoneal fascia; end of ileum, on right; sigmoid flexure of colon, on left; genital branch of genito- crural nerve (over its lower third); circumflex iliac vein; spermatic artery and vein; ovarian vessels (in female); vas deferens; ureter (sometimes); ex- ternal iliac lymphatic vessels and glands. Posteriorly : External iliac vein ; inner border of psoas magnus and its tendon; iliac fascia. Internally: External iliac vein; peritoneum; vas deferens; ovarian vessels, in female. Externally: Psoas magnus; iliac fascia. Branches. — Deep epigastric; deep circumflex iliac; several branches to psoas magnus and lymphatic glands. Line of Artery. — See Surgical Anatomy of Common Iliac. Indications for Ligation. — Wounds; secondary hemorrhage; femoral or iliofemoral aneurisms; to arrest malignant growths; in elephantiasis arabum; as a distal ligation in aneurism of common iliac. Sites of Ligation. — Proximal to deep epigastric and deep circumflex iliac branches (Fig. 39, D). LIGATION OF EXTERNAL ILIAC BY RETROPERITONEAL ROUTE. Position. — Patient supine, near edge of table. Surgeon on side of operation.' Landmarks. — Poupart's ligament; anterior superior iliac spine; line of artery. Incision. — Begins over external iliac artery, about 1.3 cm. (h inch) above Poupart's ligament, and passes upward and outward parallel with the ligament, to the anterior superior iliac spine — and is prolonged upward as far as necessary, in the cleavage line of the external oblique (Fig. 39, D). Operation. — (1) Having incised skin, superficial fascia — together with, possibly, the superficial epigastric, branches of superficial circumflex iliac, with their veins, ligating where necessary, expose the aponeurosis of the external oblique (Fig. 44). (2) Divide this aponeurosis in its cleavage line, without cutting its fibers — and continue this division, or separation, in the cleavage line as far toward or beyond the anterior superior iliac spine as indicated to give free room for manipulation. (3) Having retracted the cut edges of the external oblique well apart, separate from the outer half of Poupart's ligament the attachment of the internal oblique. Carefully retract the cut edges of the internal oblique, being on the watch for branches of the iliohvpogastric and ilio-inguinal nerves between the internal oblique and transversalis, and, if encountered, carefully displace them above or below, but avoid cutting them. If necessary to gain more room, the internal oblique is to be incised in the line of the separation of the external oblique as far as the upper limit of the separation of the fibers of the latter muscle. (4) Having incised the internal oblique and protected the nerves encountered, detach the transversalis from the outer third of Poupart's ligament, and as far beyond 9° OPERATIONS UPON THE ARTERIES. as necessary, incising its fibers transversely to their direction, but in the direction of the division of the internal oblique. After dividing the trans- versalis, guard the deep circumflex iliac artery and vein and the genitocrural nerve, both lying between the transversalis fascia and peritoneum. (5) Having now separated the fibers of the aponeurosis of the external oblique, and divided the fibers of the internal oblique and transversalis in the same line as the separation of the external oblique aponeurosis, and having safe- guarded the important nerves encountered, the fascia transversalis is then exposed and is divided over the artery in a transverse direction, corresponding Fig. 44— Ligation of Right External Iliac, Retroperitoneally— through Oblique In- cision Parallel with Poupart's Ligament: — A, A, Superficial epigastric artery; B, External oblique muscle ; C, C, G, External oblique aponeurosis ; D, Internal oblique; E, Ilioinguinal nerve ; F, Transversalis muscle; H, Deep circumflex iliac artery and accompanying vein; I, Deep epigas- tric artery and venae comites ; J, Genitocrural nerve ; K, Peritoneum (peeled back and retracted up- ward) ; L, Iliac fascia ; M, External iliac artery (its sheath incisedj ; N, External iliac vein ; O, An- terior crural nerve (seen through fascial ; P, Poupart's ligament. with the preceding separation and incision lines. The artery is here clearly defined, and the deep epigastric, the main source of collateral circulation, is carefully guarded. (6) As soon as the artery is clearly located, the sub- peritoneal tissue about the vessel is carefully opened up and the artery well exposed — as well as the deep epigastric, for the purpose of guarding it. The peritoneum is then pushed and rolled backward and upward from the vessel with the fingers and held out of the way by retractors. (7) When sufficiently exposed, the sheath of the artery is opened and the needle passed from the vein on its inner side guarding the anterior crural nerve on its outer side. The ligature should be about 3 cm. (i\ inches) above Poupart's ligament. (8) In concluding the operation, the cut edges of the transversalis are united by buried catgut sutures to their line of severance from Poupart's ligament, and as far beyond as they may have been divided. The cut edges of the internal oblique are similarly sutured to their former attachment to Poupart's ligament, and to their opposite cut margin as far beyond as divided. And, SURGICAL ANATOMY OF FEMORAL ARTERY. QI finally, the separated margins of the external oblique are united by a buried gut suture. The skin wound is then closed. Comment. — The incision for exposure may, if thought necessary, begin about 3 cm. (i| inches) to the outer side of the spine of the os pubis — being thus begun well to the inner side of the artery, as in the modified Astley Cooper operation. Collateral Circulation. — Internal mammary, lumbar, lower intercostals, above; with deep epigastric, below. Iliolumbar, lumbar, gluteal, above; with deep circumflex iliac, below. Obturator and sciatic, above; with internal circumflex below. Sciatic, above; with superior perforating, below. Gluteal, above; with external and internal circumflex and first perforating, below. Internal pudic, above; with external pudic, below. LIGATION OF EXTERNAL ILIAC BV TRANSPERITONEAL ROUTE. Position. — As in the extraperitoneal operation. Or in the Trendelen- burg position. Landmarks. — As for the extraperitoneal exposure. Incision. — The incision may be in one of three sites: (a) As an intra- muscular incision, placed over the site of the artery to be tied (Fig. 39, F); (b) vertical, in the linea semilunaris (Fig. 39, E); or (c) vertical, in the linea alba (Fig 39 , C). Operation. — The steps of the operation and the manipulation to expose the site of ligation are, practically, similar to those in the transperitoneal exposure of the common iliac, or the internal iliac. SURGICAL ANATOMY OF FEMORAL ARTERY. Description. — Continuation of external iliac. Begins at lower border of Poupart's ligament, midway between anterior superior iliac spine and symphysis pubis — passes down anterior and inner side of thigh to opening in adductor magnus, at junction of middle and lower thirds of thigh, through which it passes into popliteal space, becoming popliteal artery. Above, the artery lies near the antero-internal aspect of head of femur. Below, it is close to inner side of bone. Between, it is some distance from bone. In its upper third the artery passes from the center of base to apex of Scarpa's triangle. [Scarpa's triangle is bounded, externally, by sartorius; internally, by adductor iongus; its base, above, being formed by Poupart's ligament; its apex, below, at junction of sartorius and adductor Iongus. Its floor (from without inward) is formed by iliacus, psoas, pectineus, small part of adductor brevis, and small part of adductor Iongus. It contains femoral artery (in its center), with its cutaneous and profunda branches; femoral vein (toward inner side), with deep femoral vein and internal saphenous branches, passing from middle of base to apex; anterior crural nerve (to outer side): lymphatic glands.] In its lower third the artery passes through Hunter's canal. [Hunter's canal is an aponeurotic canal extending from apex of Scarpa's triangle to femoral opening in adductor magnus, and formed, ex- ternally, by vastus internus; postero-internaily, by adductor Iongus and magnus; antero-internally, by aponeurosis stretching from vastus internus over femoral vessels to adductor Iongus and magnus, the sartorius passing over top of this aponeurosis. It contains femoral artery, femoral vein (each 92 OPERATIONS UPON THE ARTERIES. in its own sheath, the vein being behind and external to artery), and long saphenous nerve (external to vessels).] Divisions of Artery.— Common Femoral— first 4 cm. (i 1 inches). Superficial Femoral— made up by remainder (about 9 cm.— 3$ inches). Deep Femoral — profunda femoris branch. Relations.— (a) Common Femoral :— Anteriorly— skin; superficial fascia; superficial inguinal glands; iliac portion of fascia lata; continuation of transversalis fascia into femoral sheath; crural branch of genitocrural nerve; superficial circumflex iliac vein; superficial epigastric vein (sometimes). Posteriorly — continuation of iliac fascia into femoral sheath; pubic portion of fascia lata; nerve to pectineus; psoas muscle; pectineus muscle; capsule of hip-joint. Externally— anterior crural nerves. Internally— femoral vein, (b) Superficial Femoral Artery in Scarpa's Triangle :— Anteriorly —skin; superficial fascia; crural branch of genitocrural nerve; deep fascia; Fig. 45. —Incisions for Ligation of Chief Arteries of Thigh :— A. Anterior superior iliac spine ; B, Symphysis pubis ; C, Adductor tubercle ; D, Mid-point between anterior superior iliac spine and symphysis pubis ; E, Ligation of common femoral at baseof Scarpa's triangle, by incision parallel with artery; F, Same, by incision parallel with and just below Poupart's ligament; G, Of profunda femoris, near origin ; H, Of superficial femoral at apex of Scarpa's triangle ; I, Of superficial femoral in Hunter's canal ; J, Of popliteal in upper part of popliteal space, from inner side of thigh. internal cutaneous nerve. Posteriorly — femoral vein; profunda vein; pro- funda artery; pectineus muscle; adductor longus. Externally — long saphe- nous nerve; nerve to vastus internus. Internally — femoral vein (getting behind artery at apex of Scarpa's triangle), (c) Superficial Femoral Artery in Hunter's Canal: — Anteriorly — skin; superficial fascia; deep fascia; sartorius; aponeurotic roof of Hunter's canal; internal saphenous nerve. Posteriorly — angle of junction of vastus internus and adductors; femoral vein (lying, in middle of Hunter's canal, behind and becoming slightly external and closely adherent to artery). Externally— vastus internus, femoral vein (at lower part of Hunter's canal). Internally— adductor longus (above) ; adductor magnus (below) . Branches. — From Common Femoral — superficial epigastric, superficial circumflex iliac, superficial external pudic, deep external pudic, profunda. From Superficial Femoral in Scarpa's Triangle— muscular, saphenous. LIGATION OF COMMON FEMORAL. 93 From Superficial Femoral in Hunter's Canal— muscular, anastomotica magna. Line of Artery. — (With hip slightly flexed, thigh abducted and rotated outward.) From a point midway between anterior superior iliac spine and symphysis pubis, to adductor tubercle of internal femoral condyle (Fig. 45, D, C). (When thigh in normal position and parallel with its fellow — from midway between anterior superior iliac spine and symphysis pubis, to inner border of patella.) Sites for Ligation. — Common femoral at base of Scarpa's triangle — rare (on account of proximity of large vessels). Superficial femoral at apex of Scarpa's triangle — operation of election. Superficial femoral in Hunter's canal — not common (Fig. 45). Indications for Ligation.— As for ligation of External Iliac (page 89). Comment. — (i) A short common femoral is more frequent than a long one. (2) Apex of Scarpa's triangle is from 7.5 to 9 cm. (3 to 3$ inches) below Poupart's ligament. (3) Profunda femoris arises about 4 cm. (i£ inches) below Poupart's ligament. (4) At groin, femoral artery and vein are on same plane — at apex of Scarpa's triangle, vein is posterior — in middle of Hunter's canal, vein is posterior and slightly external — at lower part of Hunter's canal, vein is external. (5) Order of vessels at apex of Scarpa's triangle, from before backward, is femoral artery, femoral vein, profunda vein, profunda artery. (6) Line approximately representing course of long saphenous vein is one running from a point about 2 cm. (f inch) internal to mid-point between anterior superior iliac spine and symphysis pubis, to posterior border of sartorius muscle at femoral condyle. LIGATION OF COMMON FEMORAL AT BASE OF SCARPA'S TRIANGLE— BY INCISION PARALLEL WITH ARTERY. Position. — Patient supine; hip slightly flexed; thigh abducted and rotated outward; knee bent and lying upon its outer aspect. Surgeon stands on side of operated limb, cutting from above downward on the right, and vice versa. Landmarks. — Line of artery (page 93) . Incision. — About 5 cm. (2 inches), beginning just a little above Poupart's ligament and extending downward in line of artery (Fig. 45, E). Operation. — Incise skin and superficial fascia. Avoid lymphatic glands — also the superficial circumflex iliac, superficial epigastric, and superficial external pudic arteries and veins. Divide the iliac portion of the fascia lata (Fig. 46). Avoid the crural branch of the genitocrural nerve on the femoral sheath, a little external to the artery. Expose and open the sheath, guarding the femoral vein, which lies immediately to the inner side of the artery and within the sheath — and the anterior crural nerve lying further to the outer side of the artery and outside of the sheath. Pass the needle from the vein (Fig. 47)- Comment. — (I) Ligation at the base of Scarpa's triangle is rarely done, owing to the nearness and number of the branches — except in such cases as wounds, and to control hemorrhage at the hip-joint, or for temporary control in operating about the thigh. Where not otherwise indicated, ligation of the external iliac is the better operation. (2) The artery may also be exposed, at this site, by an incision parallel with and about 6 mm. (^ inch) below the middle third of Poupart's ligament (Fig. 45, F). Collateral Circulation. — Internal pudic of internal iliac; with pudic 94 OPERATIONS UPON THE ARTERIES. of femoral. Gluteal; with external and internal circumflex and superior perforating. Superficial circumflex iliac; with external circumflex. Ob- turator; with internal circumflex. Sciatic; with superior perforating and Fig. 46. — Ligation of Right Common Femoral at Base of Scarpa's Triangle: — A, A> Superficial fascia; B, B, Fascia lata; D, Pectineus; E, Psoas; G, G, Poupart's ligament and external oblique; H, Common femoral artery, with superficial epigastric, external pudic, and circumflex iliac branches; I, I, Femoral vein; J, Internal saphenous, with superficial epigastric, external pudic, and circumflex iliac veins; K, Anterior crural nerve; L, Crural branch of genitocrural. internal circumflex. Comes nervi ischiadici; with all the perforating branches of profunda and articular of popliteal. SURGICAL ANATOMY OF PROFUNDA FEMORIS BRANCH OF COMMON FEMORAL ARTERY. Description. — Largest branch of femoral, nearly equaling main trunk. Arises from externo-posterior aspect of common femoral, about 4 cm. (ih inches) below Poupart's ligament — passing down thigh, at first external to LIGATION OF PROFUNDA FEMORIS. 95 superficial femoral — thence posterior to femoral artery and vein to inner side of femur — thence leaves femur and runs beneath adductor longus and adductor magnus. Relations. — Anteriorly: (near origin) skin; superficial fascia; deep fascia; branches of anterior crural nerve; (lower down) femoral vein; pro- funda vein; (still lower) adductor longus. Posteriorly: (in order) iliacus; pectineus; adductor brevis; adductor magnus. Externally : vastus internus. Internally: pectineus; angle of junction of adductor brevis and adductor magnus. Branches. — External circumflex; internal circumflex; three perforating. Site of Ligation. — At origin. Indications for Ligation. — Wounds of itself and branches. Aneurisms. Fig. 47. — Cross-section of the Left Thigh, through the Head of the Femur (The skin relations of this section erroneously represent a lower level.): — A, Iliacus; B, Sartorius; C, Femoral artery, vein, and crural nerve; D, Pectineus; E, Psoas; F, Tensor vaginas femoris; G, Gluteus minimus; H, Gluteus medius; I, Great sciatic artery, vein, and nerve; J, Gluteus maximus; K, Obturator internus; L, Obturator externus; M, Adductor brevis; N, Adductor longus. (The cross-section from Braune.j LIGATION OF PROFUNDA FEMORIS NEAR ORIGIN. Position. — Patient supine; limb extended and parallel with fellow. Surgeon on outer side of operated limb, cutting from above downward on the right, and vice versa. Landmarks. — Line of artery (with extended limb — see page 93) ; Pou- part's ligament. 9 6 OPERATION'S UPON THE ARTERIES. Incision. — About 5 or 6 cm. (2 or 2^ inches) in length, in line of artery — calculating to fall over its outer border, with the center of incision over a point in the course of the artery about 4 cm. (ij inches) below Poupart's ligament (Fig. 45, G). Operation. — Incise skin, superficial fascia, and fascia lata. Expose the inner edge of the sartorius and retract it outward. Beneath this muscle lies the rectus, with branches of the anterior crural nerve in close relation — these are to be drawn outward. The trunk of the common femoral will then be exposed, with the profunda coming off from its postero-external aspect, and running outward and downward, with the external circumflex arising from it and passing under the rectus. The artery is then freed and the ligature passed. Fig. 48. —Ligation of Right Femoral at Apex of Scarpa's Triangle :— A, Sartorius; B, Adductor longus ; C, Femoral artery and muscular branches, with its sheath incised and retracted; D, Femoral vein ; E, Branch of internal saphenous vein ; F, Long saphenous nerve ; G, Internal cuta- neous nerve. LIGATION OF SUPERFICIAL FEMORAL AT APEX OF SCARPA'S TRIANGLE. Position. — Same as for ligation of common femoral at base of Scarpa's triangle. Landmarks. — Line of artery. Incision. — About 7.5 cm. (3 inches) in length, in line of artery — with its LIGATION OF SUPERFICIAL FEMORAL ARTERY. 97 center over apex of Scarpa's triangle, that is, about 7.5 cm. (3 inches) below Poupart's ligament (Fig. 45, H). Operation. — Incise skin and superficial fascia. Draw aside, or ligate, branches of internal saphenous vein (Fig. 48). Divide fascia lata. Identify inner margin of sartorius (fibers running downward and inward) and retract outward. Open up the groove between the sartorius and adductor longus (fibers of latter running directly downward, or downward and outward) and retract the adductor longus internally, if necessary. The internal cutaneous nerve and long saphenous nerve are encountered anterior to the artery, and are to be displaced to one side. Clearly identify the femoral sheath and incise — guarding the femoral vein, which lies posteriorly and internally to the artery. Pass the needle from the vein. Collateral Circulation. — External circumflex; with lower muscular branches of femoral, anastomotica magna, superior articular of popliteal, and anterior tibial recurrent. Perforating and terminating of profunda, with muscular branches of femoral and muscular and superior articular branches of popliteal. Comes nervi ischiadici; with perforating of profunda and articular of popliteal. Fig 49. — Ligation of the Right Femoral Artery in Hunter's Canal: — A, Internal cutaneous nerve; B, Sartorius; C, Hunter's canal, the roof incised; D, Femoral artery; E, Femoral vein: F, Internal saphenous nerve. 7 9 8 OPERATIONS UPON THE ARTERIES. Fitr. 50. — Cross-section through the Middle of the Left Thigh: — A Rectus muscle; B, Vastus interims; C, Sartorius; D, Superficial femoral artery, vein, and saphenous nerve; E, Adductor longus; F, Adductor magnus; G, Gracilis; H, Semimembranosus; I, Vastus externus; J, Descending branch of external circumflex; K, Terminal branch of profunda femoris; L, Crureus; M, Great sciatic nerve and arteria comes nervi ischiadici; N, Biceps; O, Semitendinosus. (The cross section modified from Braune.) LIGATION OF SUPERFICIAL FEMORAL IN HUNTER'S CANAL. Position. — Same as for common femoral at base of triangle. Landmarks. — Line of artery. Incision. — From 7.5 to 9 cm. (3 to 3^ inches), in line of artery — over middle third of thigh (Fig. 45, I). Operation. — Incise skin and superficial fascia. The anterior branch of the internal cutaneous nerve, to the outer side, and the long saphenous vein, to the inner side, are likely to be encountered. Divide the fascia lata. Ex- pose the outer edge of the sartorius (its fibers running downward and inward) and retract inward from its position over the roof of Hunter's canal. Hunter's canal is thereby exposed in the interval between the vastus internus and the adductor magnus (the fibers of the latter running obliquely downward and outward). The nerve to the vastus internus may be here exposed. Incise the roof of the canal, when the internal saphenous nerve is found between the aponeurotic roof and the sheath of the vessels, running from without inward. Open the sheath and pass the needle from the vein (Fig. 50). SURGICAL ANATOMY OF POPLITEAL ARTERY. 99 Comment. — Guard against taking the vastus internus for the sartorius — the fibers of the former running down- ward and outward. Collateral Circulation. — Same as for the superficial femoral at the apex of Scarpa's triangle. SURGICAL ANATOMY OF POPLITEAL ARTERY. Description. — Continuation of fem- oral. Extends from aponeurotic open- ing in adductor magnus, at junction of middle and lower thirds of thigh, down- ward and outward through the popliteal space to its center behind the knee-joint — thence vertically downward to the in- ferior border of the popliteus muscle, op- posite the lower border of the tubercle of the tibia, where it divides into anterior and posterior tibial arteries. Relations. — Anteriorly : (from above downward) popliteal surface of femur; posterior ligament of knee; posterior articular surface of tibia; popliteus mus- cle. Posteriorly : (above) semimem- branosus; (center) skin, superficial fascia, deep fascia; (below) internal head of gas- trocnemius, aponeurotic arch of soleus. Popliteal vein lies behind artery through- out its course, crossing obliquely from outer to inner side, and may be double below. Internal popliteal nerve lies be- hind artery and vein (immediately pos- terior to latter), crossing the vessels ob- liquely at their center, from outer to inner side. Externally : (above) ex- ternal condyle, biceps, internal popliteal nerve; (below) outer head of gastroc- nemius, plantaris. Internally : (above) semimembranosus; (below) inner head of gastrocnemius, internal popliteal nerve. Branches. — Cutaneous; muscular (superior muscular, inferior muscular or sural) ; articular (superior external artic- ular, superior internal articular, inferior external articular, inferior internal artic- ular, azygos articular); terminal (poste- rior tibial, anterior tibial). Fig. 51. — Ligation of Popliteal, Posterior Tibial, and Peroneal Ar- teries: — A, Outer border of semimem- branosus (at junction of middle and lower thirds of thigh) ; B, Middle of popliteal space ; C, Center of posterior aspect of leg on level with tibial tubercle; D, Point midway between convexity of heel and tip of internal malleolus; E, Mid-point between outer border of tendo Achillis and tip of external malleolus ; F, Incision for popliteal artery in upper part of popliteal space, from behind; G, Same, in lower part of popliteal space; H, Of posterior tibial in its upper third ; I, Same, in its middle third; J, Same, in its lower third ; K, Same, behind internal malleolus ; L, Incision for peroneal in middle of leg. IOO OPERATIONS UPON THE ARTERIES. Line of Artery. — From outer border of semimembranosus (at junction of middle and lower thirds of thigh) obliquely down to middle of popliteal space, directly posterior to the knee-joint (for upper part of artery); and from mid-point of popliteal space vertically down to level of lower border of tubercle of tibia (for lower part of artery). (Fig. 51, A, B, C.) Sites of Ligation. — May be ligated either in its upper part or lower part — the artery being tied with difficulty in its middle, owing to its depth and relations (Figs. 45, J, and 51, F and G). Indications for Ligation. — Rare, other than wounds and aneurism — the superficial femoral usually being ligated instead. LIGATION OF POPLITEAL ARTERY IN UPPER PART OF POPLITEAL SPACE FROM BEHIND. Position. — Patient as nearly prone as feasible, resting on side of shoulder and chest, with limb extended. Surgeon to outer side of left limb, cutting downward; and to outer side of right limb, cutting upward (or inside of right limb, cutting downward). Landmarks. — Line of artery and upper boundaries of popliteal space. Incision. — About 9 cm. (3^ inches) in length, in line of artery, beginning at outer border of semimembranosus, at junction of middle and lower thirds of thigh, and passing obliquely downward to the middle of the popliteal space (Fig. 51, F). Operation. — Incise skin and superficial fascia. Avoid the small sciatic nerve. Open up the deep fascia. Retract the hamstring muscles to the outer and inner sides. The popliteal nerve is first encountered crossing from the outer to the inner side — the popliteal vein crossing similarly. Displace these structures laterally — when the artery is found, generally lying in fatty areolar tissue. Collateral Circulation. — Where the ligation is between the superior and inferior articular arteries; — anastomotic^ magna, superior external and internal articular, descending branch of external circumflex, above; with in- ferior external and internal articular and anterior tibial recurrent (also, possibly, posterior tibial recurrent and superior fibular of anterior recurrent), below. Comment. — The upper part of the popliteal artery may also be tied from the inner side of the leg (v. i.) — but the above operation is simpler, unless the popliteal region be encroached upon by some pathological condition. LIGATION OF POPLITEAL ARTERY IN UPPER PART OF POPLITEAL SPACE FROM INNER SIDE OF THIGH— JOBERT'S OPERATION. Position. — Patient supine; thigh slightly flexed; fully abducted and rotated outward; knee at a right angle and resting on external aspect. Surgeon on outside, cutting downward on right, upward on left (or may stand on inner side of left and cut downward) . Landmarks. — Tendon of adductor magnus. Incision. — About 7.5 cm. (3 inches) in length, beginning opposite the junction of middle and lower thirds of thigh, and running parallel with and immediately posterior to the tendon of the adductor magnus (which is inserted into the adductor tubercle on the internal condyle of the femur). (Fig. 45, J.) Operation. — Incise skin and superficial fascia. Avoid anterior branch of internal cutaneous nerve (Fig. 52). Divide deep fascia. Expose the LIGATION OF POPLITEAL ARTERY. IOI anterior edge of the sartorius and retract it backward, together with the internal saphenous vein, if in view (the internal saphenous nerve being beneath the sartorius, out of view). Having thoroughly divided the deep fascia, the adductor magnus tendon is identified and drawn forward — then the semi- Fig. 52.— Ligation of Upper Part of Right Popliteal from Inner Side of Thigh : — A, Anterior branch of internal cutaneous nerve; B, Internal saphenous vein ; C, Sartorius (its anterior border retracted posteriorly I ; D, Internal saphenous nerve (mainly under sartorius, out of sight) ; E, Adductor magnus (drawn anteriorly); F, Semimembranosus (drawn posteriorly); G, Popliteal artery ; H, Popliteal vein (below and external to artery). • membranosus is identified and drawn backward — and the artery is then sought between these two structures, near the bone and in considerable fatty areolar tissue. Both popliteal vein and nerve lie on a plane posterior to the artery, and are generally not brought to view. LIGATION OF POPLITEAL ARTERY IN LOWER PART OF POPLITEAL SPACE P.V POSTERIOR MEDIAN INCISION. Position. — As for ligation in the upper part of the space. Landmarks. — Boundaries of the popliteal space (the biceps above, and the plantaris and outer head of gastrocnemius below, forming the outer boundary; — and the semimembranosus and semitendinosus above, and the inner head of the gastrocnemius below, forming the inner boundary). 102 OPERATIONS UPON THE ARTERIES. Incision. — About 9 cm. (3? inches) in length, beginning at the middle of the popliteal space (on a level with the knee-joint) and passing downward between the two heads of the gastrocnemius (Fig. 51, G). Operation. — Incise skin and superficial fascia. Avoid the external saphenous vein and external saphenous nerve in the outer aspect of the wound, or the communicans poplitei nerve which helps form the external saphenous nerve (Fig. 53). Divide the deep fascia. Expose the inner and outer heads of the gastrocnemius, with the sural arteries going to them — and retract these and the plantaris muscle to their respective sides. Muscular branches of the internal popliteal nerve may be met with here, and maybe Fig- 53- — Ligation of Right Popliteal at Lower Part of Popliteal Space: — A, Inner head of gastrocnemius (retracted inward l; B, Outer head of gastrocnemius (drawn outward); C, Plantaris; D, External saphenous vein ; E, Communicans poplitei nerve; F, Internal popliteal nerve (drawn inward) ; G, Popliteal vein (drawn inward] ; H, Popliteal artery and muscular branches; I, Popliteus muscle. the posterior tibial nerve. The external saphenous vein is the guide to the popliteal vessels. The internal popliteal nerve is found most superficial of the three important structures — the popliteal vein next (both crossing to the inner side, toward which side they are further retracted) — and the artery deepest of all, near the bone and in much fatty areolar tissue. The needle is passed from the side of the vein, flexure of the knee aiding during this stage. Comment. — A continuation upward of the above incision would amount to ligation of the popliteal artery in the middle of the popliteal space. SURGICAL ANATOMY OF ANTERIOR TIBIAL ARTERY 103 Collateral Circulation. — If the artery be ligated between the superior and inferior articular branches, the collateral anastomosis would be the same as after the above operation. SURGICAL ANATOMY OF ANTERIOR TIBIAL ARTERY. Description. — The smaller bifur- cation of popliteal artery, at lower border of popliteus muscle, passing thence forward between the two heads of tibialis posticus, through aperture in upper part of interosseous mem- brane, between tibia and fibula, to deep part of front of leg — descending, at first, on anterior surface of interos- seous membrane, then on the tibia, and finally onto front of ankle-joint, beneath anterior annular ligament, where it becomes dorsalis pedis. It is accompanied by two vena? comites. The anterior tibial nerve accompanies its lower three-fourths, lying upon its fibular side, though partly overlapping it in middle of leg. Relations. — Anteriorly : skin, superficial fascia; deep fascia; anterior tibial nerve (at middle) ; tibialis an- ticus (above) ; extensor longus digi- torum (above) ; extensor proprius poi- nds (below) ; anterior annular ligament (below). Posteriorly: interosseous membrane (upper two-thirds) ; tibia and ankle-joint (lower one-third). Ex- ternally : anterior tibial nerve (above and below) ; extensor longus digitorum (upper third) ; extensor proprius poi- nds (middle third). Internally : tibi- alis anticus (upper two-thirds) ; ex- tensor proprius pollicis (crosses lower part of arterv). Branches. — Posterior tibial recur- rent, superior fibular (sometimes), an- terior tibial recurrent, muscular, in- ternal malleolar, external malleolar. Line of Artery. — From inner side of head of fibula, to center of line be- tween the malleoli — (according to Kocher, from midway between ex- ternal surface of head of fibula and center of tubercle of tibia, to the Fig. 54. — Incisions for Ligation of Anterior Tibial and Dorsalis Pedis Ar- teries : — A, Incision for upper third of anterii >r tibial ; B, For middle third of anterior tibial ; C, For lower third of anterior tibial ; D, For dorsalis pedis just below ankle-joint; E, For dorsalis pedis in first interosseous space; F, Inner side of head of fibula ; G, Mid-point be- tween two malleoli. same point below). The artery passes io4 OPERATIONS UPON THE ARTERIES. through the interosseous membrane about 3 cm. (1} inches) below the level of the head of the fibula. Indications for Ligation.— Wounds (of anterior tibial or in foot); aneurism. Sites of Ligation.— Upper and middle thirds— rarely, except in wounds. Lower third — most frequent site. (Fig. 54). LIGATION OF ANTERIOR TIBIAL IN ITS UPPER THIRD. Position. — Patient supine; leg extended and rotated inward. Surgeon on outer side (cutting from above downward, on the right — and vice versa). Landmarks. — Line of artery. Incision. — About 7.5 cm. (3 inches) in length, in line of artery — beginning about 2.5 cm. (1 inch) below head of fibula (Fig. 54, A). Fig. 55. — Ligation of the Upper Third of the Right Anterior Tibial Artery: — A, Anterior tibial artery; B, Vena; comites; C, Anterior tibial nerve; D, Extensor communis digitorum; E, Branch of internal saphenous vein; F, Tibialis anticus muscle. Operation. — Incise skin, superficial fascia, and deep fascia. Define the gap between tibialis anticus, internally, and extensor longus digitorum, externally, and retract these structures to their respective sides (Fig. 55). Open up this interval — flexing the foot to relax the parts. Aim to reach the external aspect of the tibia, covered by the tibialis anticus, and, when reached, LIGATION OF ANTERIOR TIBIAL. I°5 follow down to the interosseous membrane, upon which the artery will be found. Two venae comites lie in very close contact, in front of and behind the artery. The anterior tibial nerve may not yet have reached the outer side of the artery. If the vena; comites be not separable, include them in the ligature. Comment. — The interval between the tibialis anticus and extensor longus digitorum is the key to the situation, and is rather hard to find. The outer edge of the tibialis anticus. often overlaps the extensor longus digitorum. And also one may get into the septum between the extensor longus digitorum and peroneus longus and work down toward the fibula. Guides to the proper intermuscular gap, accessory to the sensation of touch, are the " white line" (sometimes visible) and a small artery leading to the anterior tibial. Fig. 56. — Cross-section through the Upper Third of the Right Leg: — A, Tibialis anticus; B, Extensor longus digitorum; C, Anterior tibial vessels and nerve; D, Musculocutaneous nerve; E, Peroneus longus; F, F, F, F, Gastrocnemius; H, Posterior tibial vessels and nerve; I, Soleus; J, Internal saphenous vein and nerve; K, Popliteus. (The cross-section modified from Braune.) LIGATION OF ANTERIOR TIBIAL IN ITS MIDDLE THIRD. Position — Landmarks. — As for ligation of the upper third. Incision. — About 7.5 cm. (3 inches) in length, in line of artery, with its center over the center of the leg (Fig. 54, B). Operation. — Incise skin, superficial and deep fascia. Recognize the interval between the tibialis anticus (its outer edge still muscular) internally — and the extensor longus digitorum (its inner edge tendinous) externally. A io6 OPERATIONS UPON THE ARTERIES. yellow fatty line may sometimes indicate the interval. Open up this interval, flexing the foot. Retract these muscles to their own sides — and, deeper in the wound, also retract the extensor proprius pollicis to the outer side. Follow down the gap toward the tibia (and not the gap between the extensor longus digitorum and extensor proprius pollicis). The anterior tibial nerve will be found slightly overlapping the artery — draw it outward. The artery will be found on the interosseous membrane, under cover of the muscular fibers of the tibialis anticus, with the extensor proprius pollicis on its outer side. The venae comites are separated with difficulty, and, if so, may be included in the ligature. Fig. 57. — 'Ligation of Lower Third of Right Anterior Tibial :— A, Tendon of tibialis anticus, retracted inward ; B. Extensor proprius hallucis, retracted outward ; C, Extensor longus digitorum ; U, Annular ligament ; E, Anterior tibial artery and branches ; F, F, Anterior tibial venae comites; G, Anterior tibial nerve; H, Inner branch of musculocutaneous nerve; I, Branch of internal saphenous vein. LIGATION OF ANTERIOR TIBIAL IX ITS LOWER THIRD. Position. — As for ligation of the upper third — without the inward rota- tion of the foot. Landmarks. — Line of artery. Incision. — From 5 to 7.5 cm. (2 to 3 inches) in length, with center over center of lower third of leg (Fig. 54, C). Operation. — Incise skin and fascia. Clearly identify tendon of tibialis anticus. Divide the upper part of the superior band of the anterior annular ligament in the line of the wound (Fig. 57). Demonstrate the interval be- LIGATION OF DORSALIS PEDIS. 107 tween the tendon of the tibialis anticus and tendon of the extensor proprius pollicis — flexing the foot and retracting these tendons to their own sides. The anterior tibial artery will be found between them, lying upon the anterior aspect of the tibia and held down by fatty areolar tissue — accompanied by two venae comites, and with the anterior tibial nerve on the outer side. Pass the needle from the nerve. In closing the wound, suture the anterior annular ligament. Comment. — If the artery were ligated after passing beneath the obliquely crossing extensor proprius pollicis, it would then have the tendon of the extensor proprius pollicis to its inner side and the innermost tendon of the extensor longus digitorum to its outer side. Collateral Circulation. — (When ligated below the malleolar branches.) External malleolar of anterior tibial, with anterior peroneal of peroneal and with calcaneal of posterior peroneal. Internal malleolar of anterior tibial, with internal malleolar of posterior tibial. Dorsalis pedis and branches, with internal plantar of posterior tibial, with external plantar of posterior tibial, with anterior peroneal of peroneal, and with calcaneal of posterior peroneal. Muscular branches of anterior tibial anastomosing through the interosseous membrane with muscular branches of posterior tibial. SURGICAL ANATOMY OF DORSALIS PEDIS (OF ANTERIOR TIBIAL). Description. — Continuation of anterior tibial — extending from bend of ankle along tibial side of foot to apex of first intermetatarsal space — passing into sole (as communicating artery) between two heads of first dorsal inter- osseous. The anterior tibial nerve lies upon its outer side. The artery is accompanied by two venae comites. Relations. — Anteriorly: Skin, superficial fascia; deep fascia; anterior annular ligament; extensor longus pollicis; innermost tendon of extensor brevis digitorum. Posteriorly: (from above downward) Astragalus; scaph- oid; internal cuneiform; ligament of first and second metacarpals. Ex- ternally : Innermost tendon of extensor longus digitorum (above) ; innermost tendon of extensor brevis digitorum (below) ; anterior tibial nerve. In- ternally : Extensor longus pollicis. Branches. — Tarsal; metatarsal; dorsalis hallucis; communicating (plantar digital). Line of Artery. — From center of line connecting two malleoli, to proximal end of first metatarsal space. Indications for Ligation. — Rare — wounds, aneurism. Sites of Ligation. — At ankle-joint (involves cutting anterior annular ligament); below ankle-joint (general site); at first interosseous space (Fig. 54, D and E). LIGATION OF DORSALIS PEDIS JUST BELOW ANKLE-JOINT. Position. — Patient supine; foot resting on heel and extended. Surgeon below foot, on either side, cutting downward (or on outer side of both limbs, cutting downward on right, and upward on left). Assistant steadies foot. Landmarks. — Line of artery. io8 OPERATIONS UPON THE ARTERIES. Incision. — From 2.5 to 5 cm. (1 to 2 in.), in line of artery, passing from lower border of anterior annular ligament — between tendon of extensor pollicis and inner tendon of extensor longus digitorum (Fig. 54, D). Fig. 58. — Ligation of Right Dorsalis Pedis Just below Ankle-joint: — A, A, Branches of internal saphenous vein ; B, Internal branch of musculocutaneous nerve and its divisions ; C, Tendon of extensor proprius hallucis ; D, Inner tendon of riexor longus digitorum ; E. Inner tendon of exten- sor brevis digitorum ; F, Dorsalis pedis artery ; G, Venae comites of dorsalis pedis artery ; H, Ante- rior tibial nerve; I, Annular ligament. Operation. — Incise skin and superficial fascia. Tributaries of internal saphenous vein and the internal branch of the musculocutaneous nerve lie in the line of incision (Fig. 58). Open up the deep fascia between the tendon of the extensor proprius pollicis and innermost tendon of flexor longus digitorum — when the artery will be found upon the tarsal ligaments. The anterior tibial nerve lies upon its fibular side — two vena? comites accompanying the artery. Avoid opening the tendon sheaths. Comment. — When the artery is tied at the base of the first interosseous space, an incision is made from the apex of the first interosseous space, passing down between the first and second metatarsals. The artery is found emerging from under the innermost tendon of the extensor brevis digitorum, which is retracted inward. SURGICAL ANATOMY OF POSTERIOR TIBIAL ARTERY. Description. — Larger and more direct division of popliteal artery — ■ extending from lower border of popliteus muscle (on level with lower border of tubercle of tibia), down tibial side of back of leg, between superficial and deep muscles, to middle of fossa between tip of internal malleolus and os calcis — and dividing, under abductor hallucis, into internal and external LIGATION OF POSTERIOR TIBIAL. 109 plantar branches. It arises midway between tibia and fibula, covered by the superficial muscles — lower down it lies behind the tibia — and at its lower third it is covered by only skin and fascia, and then passes beneath the internal annular ligament. It is accompanied by two vena? comites. The posterior tibial nerve crosses the artery, from the inner to outer side, about 2.5 to 4 cm. (1 to 1 J inches) below inferior border of popliteus, and runs thence along its fibular aspect. Relations. — Anteriorly: (From above downward) tibialis posticus; flexor longus digitorum; tibia; internal lateral ligament of ankle-joint. Pos- teriorly: Skin; superficial fascia; gastrocnemius; soleus; deep intermuscular (transverse) fascia binding artery to underlying muscles; posterior tibial nerve (crossing from inner to outer side above, and then running along fibular side). In lower third, covered only by skin and fascia. Externally : Poste- rior tibial nerve (lower three-fourths) ; vena comes. Internally : Posterior tibial nerve (upper one-fourth); vena comes. At Ankle-joint: Posterior tibial artery lies under internal annular ligament and abductor hallucis — resting upon internal lateral ligament of ankle — having tibialis posticus and flexor longus digitorum in front — and posterior tibial nerve and flexor longus hallucis behind and externally. Branches. — Peroneal, muscular, medullary, cutaneous, communicating, internal malleolar, internal calcaneal, external plantar, internal plantar. Line of Artery. — Lower half — line from a point 5 cm. (2 inches) below center of popliteal space, to midway between tip of internal malleolus and center of convexity of heel. Upper half — forms a slight curve inward from this line. Indications for Ligation. — Wounds; aneurisms. Sites of Ligation. — Upper third — not frequent — difficult because of depth. Middle third — same. Lower third — most usual site. Behind ankle — also common. (Fig. 51, H, I, J, K.) LIGATION OF POSTERIOR TIBIAL IN ITS UPPER THIRD— ABOVE ORIGIN' OF PERONEAL BRANCH. Position. — As for ligation of lower part of popliteal artery (page 101). Landmarks. — Popliteal boundaries (page 101); head of fibula. Incision. — Begins in popliteal space, on level with head of fibula, and passes directly down the middle line for about 7.5 cm. (3 inches) (Fig. 51, H). Operation. — Incise skin, superficial fascia, avoiding external saphenous vein and nerve. Divide deep fascia, exposing two heads of gastrocnemius. Incise their connecting raphe freely and separate them fully, avoiding their nerves and vessels as much as possible. Expose the upper border of the soleus beneath the external head of the gastrocnemius. Retract the plantaris (found between the outer head of the gastrocnemius and soleus). The lower border of the popliteus, opposite which the posterior tibial nerve begins, about corresponds with the upper border of the soleus — so that after re- tracting the internal popliteal nerve and vein to the inner side, draw the upper border of the soleus downward (or nick its upper border) and thus expose the bifurcation of the popliteal artery into anterior tibial (passing through the interosseous membrane) and posterior tibial (descending on the deep muscles). Pass the needle between the anterior tibial and peroneal branches. Collateral Circulation. — (When ligated between the bifurcation and no OPERATIONS UPON THE ARTERIES. origin of the peroneal.) Peroneal of posterior tibial, with communicating and muscular branches of the posterior tibial; external calcaneal of peroneal, with internal calcaneal of external plantar; external malleolar of anterior tibial, with external plantar; internal malleolar of anterior tibial, with internal malleolar of posterior tibial; dorsalis pedis and branches, with internal and external plantar. F'g- 59- — Ligation of Middle Third of Right Posterior Tibial: — A, Internal saphenous vein; B, Internal saphenous nerve; C, Soleus, incised vertically, and margins of incision well retracted; D, Inner border of gastrocnemius strongly retracted outward ; E, Transverse intermuscu- lar fascia ; F, Flexor longus digitorum ; G, Tibialis posticus ; H, Posterior tibial artery ; I, I, Poste- rior tibial venae comites ; J, Posterior tibial nerve. LIGATION OF POSTERIOR TIBIAL IN ITS MIDDLE THIRD. Position. — Patient supine; knee flexed; leg on outer side. Surgeon to outer side, cutting downward on right, and upward on left. Landmarks. — Inner margin of tibia. Incision. — From 7.5 cm. to 10 cm. (3 to 4 inches) in length, placed parallel with and 2 cm. (f inch) behind the inner margin of the tibia, along its middle third (Fig. 51, I). Operation. — Incise skin and superficial fascia. Avoid internal saphenous vein and internal saphenous nerve (Fig. 59). Divide the deep fascia. The inner edge of the gastrocnemius should be identified here — and retracted outward. Having gone through the deep fascia, the soleus is exposed, and is to be divided along its attachment to the tibia, and its outer part retracted. LIGATION OF POSTERIOR TIBIAL. The transverse intermuscular fascia (between superficial and deep muscles of back of leg) is now in view, and is incised in the axis of the limb, whereby the flexor longus digitorum is reached — and, by following along the surface of this muscle until nearly opposite the outer border of the tibia, the vena comes interna, posterior tibial artery, vena comes externa, and posterior tibial nerve are met in order, lying upon the tibialis posticus, or between it and the flexor longus digitorum. Pass the needle from the nerve, including the vena? comites if unavoidable — flexing the knee and foot to relax the structures. (Fig. 60.) Fig. 60. — Cross-section of the Middle of the Right Leg: — A, Tibialis amicus; B, Extensor longus digitorum; C, Extensor pollicis; D, Anterior tibial artery, vein, and nerve; E, Peronei; F, Tibialis posticus; G, Long saphenous vein and nerve; H, Flexor longus digitorum; I, Posterior tibial artery, veins, and nerve; J, Soleus; K, Gastrocnemius; L, Peroneal artery and veins. (The cross-section modified from Braune.) Comment. — The knife should be held at a right angle to the surface of the muscle, in cutting through the soleus, pointing toward the tibia until the transverse fascia is reached — and thereby wandering too deeply, or in the wrong direction, is less likely. If one incise too near the tibia, the flexor longus digitorum may be divided and the interosseous membrane reached. While incising the soleus, do not mistake its central membranous tendon for the transverse intermuscular fascia. The artery lies about 3 cm. (i| inches) external to the inner border of the tibia. 112 OPERATIONS UPON THE ARTERIES. LIGATION OF POSTERIOR TIBIAL IN ITS LOWER THIRD. Position. — As for the middle third. Landmarks. — Line of artery. Incision. — About 5 cm. (2 inches) in length, in line of artery, with its center over the lower third of the leg — which should fall midway between the inner border of the tendo Achillis and the inner border of the tibia (Fig- 51, re- operation. — Incite skin and superficial fascia. Divide the deep fascia binding down the flexor tendons — when the artery will be found lying be- tween the flexor longus digitorum and flexor longus pollicis — the posterior tibial nerve lying to its fibular side, with the venae comites surrounding the artery. Comment. — If the incision be at the upper part of the lower third of the artery, the vessel will be found upon the flexor longus digitorum. If the incision be at the lower part of the lower third, the upper part of the internal annular ligament must be cut. G — 1 "1 Fig. 61. — Ligation of Right Posterior Tibial behind Internal Malleolus: — A, Branch of internal saphenous vein; B, Branch of internal saphenous nerve; C, Internal annular ligament (incised); D, Tendon of flexor longus hallucis; E, Tendon of flexor longus digitorum; F, Tendon of tibialis posticus ; G, Posterior tibial artery ; H, H, Posterior tibial vense comites ; I, Posterior tibial nerve. LIGATION OF POSTERIOR TIBIAL BEHIND INTERNAL MALLEOLUS. Position. — As for ligation of the lower third. Landmarks. — Internal malleolus. Incision. — About 5 cm. (2 inches) in length, placed about 1.3 cm. (\ inch) posterior to and parallel with the inner malleolus (Fig. 51, K). LIGATION OF POSTERIOR TIBIAL. Operation. — Incise skin and superficial fascia — during which branches of the internal saphenous vein are encountered (Fig. 61). Expose the in- ternal annular ligament and divide it over the vessels — the artery being found in the interval between the flexor longus digitorum and flexor longus hallucis, surrounded by its vena; comites and with the nerve upon its fibular side (Fig. 62). Fig. 62. — Cross-section of the Right Leg just Above the Ankle: — A, Extensor proprius pollicis; B, Anterior tibial vessels and nerve; C, Peroneus brevis; D, Peroneus longus; E, Flexor longus pollicis; F, Tibialis anticus; G, Extensor proprius pollicis; H, Tibialis posticus; I, Flexor longus digitorum; J, Posterior tibial artery, veins, and nerve; K, Tendo Achillis. (The cross-section modified from Braune.) Comment. — Keep the knife pointed toward the tibia, in making the incision. Avoid opening the sheaths of the tendons. Behind the internal malleolus and posterior surface of the tibia are four compartments, which, passing from tip of malleolus toward heel, are — first, a canal in the annular ligament for the posterior tibial muscle tendon — a second canal for the flexor longus digitorum tendon — a third space occupied bv the posterior tibial artery, its venae comites, and the posterior tibial nerve — and a fourth canal for the flexor longus hallucis. 114 OPERATIONS UPON THE ARTERIES. SURGICAL ANATOMY OF PERONEAL BRANCH OF POSTERIOR TIBIAL ARTERY. Description. — Arises from posterior tibial about 2.5 cm. (1 inch) below inferior border of popliteus — and curves (with convexity outward and upward) obliquely outward and downward to fibula — descending thence close to inner border of fibula, to lower third of leg, where the anterior peroneal is given off (which pierces the interosseous membrane to front of leg) — thence passes, as posterior peroneal, to inferior tibiofibular joint and external malleolus. It is accompanied by two venae comites. Relations. — (From origin to bifurcation.) Anteriorly : (from above downward) Tibialis posticus; fibrous bed between origins of tibialis posticus and flexor longus hallucis. Posteriorly: (from above downward) Soleus; flexor longus hallucis (completing fibrous canal of artery). Branches. — Muscular, nutrient, anterior peroneal, communicating, posterior peroneal, external calcanean. Line of Artery. — From middle of popliteal space, on level of lower border of tubercle of tibia, arching slightly outward and then downward along inner border of posterior surface of fibula. For purposes of ligation, the artery is represented by a line from posterior border of head of fibula to point midway between external malleolus and outer margin of tendo Achillis. Indications for Ligation. — Rare — except for wounds, when the vessel is cut down upon at the point wounded. Sites of Ligation. — Upper part — rare, owing to depth. Middle — usual site (Fig. 51, L). LIGATION OF PERONEAL BRANCH OF POSTERIOR TIBIAL IN MIDDLE OF LEG. Position. — Patient rests on shoulder and chest of opposite side; knee flexed; leg on antero-internal surface. Surgeon on outer side, cutting from below on right, and from above on left. Landmarks. — External border of fibula. Incision. — About 7.5 cm. (3 inches) in length — parallel with and just behind external border of fibula, with its center over the middle of the leg— which falls behind the peronei muscles (Fig. 51, L). Operation. — Incise skin and superficial fascia. Branches of the external saphenous nerve and external saphenous vein are apt to be encountered here (Fig. 63). Expose the soleus (which, at this site, no longer arises from the fibula) and retract it upward and inward (incising its lower fibers if any be found attached to the fibula at this height). Divide the deep fascia behind the peronei. Expose the flexor longus hallucis and incise through its thick- ness, close to the fibula — until the fibrous canal of which it forms the roof is reached. Divide the aponeurotic canal and expose the artery lying near the fibula, with its venae comites SURGICAL ANATOMY OF THE EXTERNAL PLANTAR ARTERY. 1 15 Fig. 63. — Ligation of Right Peroneal in Middle of Leg: — A, Branch of external saph- enous nerve; B, Branch of external saphenous vein; C, Gastrocnemius, retracted inward; D, Soleus, retracted' upward and inward ; E, Peroneus longus ; F, Peroneus brevis ; G, Tibialis posticus; H, Flexor longus hallucis, incised, showing roof of aponeurotic canal enclosing vessels ; I, Peroneal artery ; J, Peroneal venae comites. SURGICAL ANATOMY OF EXTERNAL PLANTAR BRANCH OF POS- TERIOR TIBIAL. Description. — Larger of two terminal branches given off by posterior tibial at inner ankle. Passes from beneath internal annular ligament, obliquely forward and outward across sole of foot to base of fifth metatarsal — thence curves forward and inward to base of first interosseous space — where it anastomoses with communicating branch of dorsalis pedis, to form plantar arch. Two venae comites accompany the artery. Relations. — First part (from inner ankle-joint to base of fifth meta- tarsal): Rests on os calcis; flexor accessorius; flexor minimi digiti. Covered by — skin; superficial fascia; plantar fascia; abductor hallucis; flexor brevis digitorum and abductor minimi digiti. Lies between — flexor brevis digi- torum and abductor minimi digiti. Accompanied by — external plantar nerve and two venae comites. Second part: (Plantar arch; from base of fifth metatarsal to proximal end of first interosseous space.) Rests on — - proximal ends, and corresponding interosseous muscles, of second, third, and fourth metatarsals. Covered by — skin; superficial fascia; plantar fascia; flexor brevis digitorum; tendon of flexor longus digitorum; lumbricales; branches of internal plantar nerve; adductor hallucis. n6 OPERATIONS UPON THE ARTERIES. Branches. — Muscular, calcaneal, cutaneous, anastomotic, articular, pos- terior perforating, digital. Line of Artery. — First Part: from point midway between tip of internal malleolus and great tubercle of os calcis, to base of fifth metatarsal. Second Part: — from base of fifth metatarsal, to posterior part of ball of great toe. Fig. 64. — Incisions for Liga- tion of Plantar Arteries: — A, Incision for external plantar in sole of foot; B, For internal plantar in sole of foot; C, For external plantar arch at base of first interosseous space; D, Ball of heel; E, Base of fourth toe; F, Base of first toe. Fig. 65. — Ligation of Right External Plan- tar in Sole of Foot: — A, Superficial fascia; B, Abductor minimi digiti; C, Flexor brevis digitorum; D, Deep plantar fascia; E, External plantar artery; F, F, External plantar venae comites; G, External plantar nerve. Indications for Ligation. — Wounds and aneurisms. Sites of Ligation. — At origin — more frequent site. In the sole. Plantar arch — rare. (Fig. 64, A, C.) LIGATION OF EXTERNAL PLANTAR IN SOLE OF FOOT. Position. — Patient supine; foot resting upon heel, steadied upon a sup- port. Surgeon at foot of table. Landmarks. — Ball of heel; fourth toe. Incision. — Along arch of foot, in a line from ball of heel to fourth toe — about 6 cm. (2 J inches) in length (Fig. 64, A). Operation. — Divide skin, superficial fascia, fatty areolar tissue, and plantar fascia. Expose the gap between the flexor brevis digitorum and abductor minimi digiti — in which the artery is found, with accompanying nerve and veins (Fig. 65). LIGATION OF INTERNAL PLANTAR. 117 SURGICAL ANATOMY OF INTERNAL PLANTAR BRANCH OF POSTE- RIOR TIBIAL. Description. — Smaller of two terminal branches given off by posterior tibial at inner ankle — passing forward along inner side of sole, generally to first interosseous space, to anastomose with fifth plantar digital of com- municating branch of dorsalis pedis. Relations. — First covered by abductor hallucis — then lies between abductor hallucis and flexor brevis digitorum — and, toward distal end, is covered by skin and fascia. Branches. — Muscular, cutaneous, articular, anastomotica, superficial digital. Sites of Ligation. — At origin — more frequent. In sole. (Fig. 64, B.) LIGATION OF INTERNAL PLANTAR AT ORIGIN". Position — Landmarks — Incision — Operation. — As for ligation of ex- ternal plantar at origin. A Fig. 66. — Ligation or Right Internal Plantar Artery in Sole of Foot: — A, Super- ficial fascia; B, Abductor hallucis; C, Flexor brevis digitorum; D, Internal plantar artery; E, E, Internal plantar venae comites; F, Internal plantar nerve. LIGATION OF INTERNAL PLANTAR IN SOLE OF FOOT. Position. — As for external plantar. Landmarks. — Heel; great toe. Incision. — Along arch of foot, in line from point of heel to great toe — about 6 cm. (2^ inches) in length (Fig. 64, B). Operation. —Divide skin, superficial fascia, and fattv areolar tissue. Expose the gap between the abductor hallucis and flexor brevis digitorum — in which interval the artery is found (Fig. 66). Il8 OPERATIONS UPON THE ARTERIES. TEMPORARY OR PROVISIONAL LIGATION OF ARTERIES. Definition. — The temporary arrest of circulation in an artery by means of a ligature carried beneath the vessel — whereby the artery is drawn upon until the flow ceases, but is not tied. Indications. — Where it is desired to control for a time the arterial circu- lation during the steps of an operation — or where a ligature is placed about an artery in advance of, or preparatory for, any emergency which may arise — (e. g., temporary ligature of common carotid in the removal of a tumor of the neck, or of the femoral in popliteal aneurism). Operation. — All the steps, up to the exposure of the sheath of the artery, are similar to those for an ordinary ligation. At this point, instead of opening the sheath, the sheath itself is isolated (unless a common sheath contain other important structures). A stout ligature (preferably broad) that will not cut is passed beneath the sheath. The two ends of the ligature are not tied upon the artery, but are simply grasped by clamp-forceps in the hands of an assistant (or knotted into a loop). When it is desired to control all flow through the vessel, the assistant simply lifts the artery slightly from its position — the under wall of the artery is thereby pressed into contact with the upper wall by the loop of the ligature, over which the artery makes an angle, and the flow ceases. On relaxing tension, the artery falls back into its normal position and the flow continues. Where no further need exists for this control, one end of the loop is drawn upon and the ligature slips out from under the artery. Where the temporary is converted into a permanent ligature, the ligature is tightened in the ordinary manner — although, were this likelihood foreseen, it would be better to open the sheath of the artery at first and place the temporary ligature directly around the artery proper. Floss silk is especially useful for provisional ligatures. Comment. — As this subsidiary operation is generally resorted to in advance or in the course of some more major operation, the steps of the temporary ligation are modified by those of the main operation. INTERMEDIATE LIGATION, OR LIGATURE EN MASSE. Definition. — Ligature en masse for parenchymatous hemorrhage is a method of controlling hemorrhage which comes from no definite vessels, or from inaccessible sources, or as a capillary oozing. Description. — A fully curved needle, armed with catgut, is made to enter the tissue to one side of the site from which the flow comes — passes deeply into the parts, and, in emerging, more or less completely surrounds the area of hemorrhage — which is controlled by the tightening of the ligature. Or, in hemorrhage from a larger area, a curved needle, held in a holder, may be made to surround the area from which parenchymatous bleeding comes by circumventing that area with a purse-string ligature introduced by several consecutive insertions of the needle — at, for instance, four points of a circle. The ends of beginning and ending of this catgut ligature are then drawn and knotted — only tightly enough to control hemorrhage, and not tightly enough to strangulate the parts. ARTERIORRHAPHY. Definition. — Suture of an artery. Indications. — Arteriorrhaphy may be required in longitudinal wounds of an artery; in limited transverse or oblique wounds; in transverse wounds ARTERIORRHAPHY. II 9 of more than half the circumference; in complete division, or in division with partial resection (the resected portion not exceeding more than about 2 cm. — I inch). Exposure of the Vessel and Repair of a Longitudinal or Partial Transverse Wound of an Artery by Suture of the Outer Coats. — (i) With aseptic precautions, the sheath of the artery is exposed and opened with minimum injury to vessel and surroundings. If the circulation have not been temporarily controlled by a constrictor, or some form of pressure, the artery is clamped above and below the injury with special forceps (e. g., Billroth's, with broad blades protected by pieces of rubber drainage-tubes drawn over them; or probably better, by means of floss silk lightly tied or looped). (2) Seize, in turn, the lips of the wounded artery with a pair of oculist's rat-tooth fixation-forceps. Using a fully curved and round con- junctival needle (or straight floss-needle, or cambric needle) threaded with Fig. 67. — ARTERIORRHAPHY IN COMPLETE CIRCULAR DIVISION OF AN ARTERY (MURPHY'S Method) : — A, Intussusceptum, with sutures passing through outer and middle coats; B, Intus- suscipiens (split to aid invagination) with sutures passing through all coats. Fig 68. — C, Same showing all sutures tied. twisted silk of exact size as eye of needle (that hemorrhage may not occur through the needle-hole which the silk has not fully filled), penetrate the tunica adventitia and muscularis, down to (but not through) the intima. The lips of the wound are pierced immediately opposite each other. The knots are interrupted — are from 1 to 2 mm. (about -^ to TTr inch) apart — enter artery about 1.5 mm. (y 1 ^ inch) from edge of wound — and are lightly tied with a reef-knot, avoiding inversion of the lips of the artery. The sheath of the artery is separately sutured over the vessel, if possible. The skin wound is closed as usual. A wound in the long axis of the artery tends to gape least, and a transverse wound most. If the artery be divided through one-half of its circumference, it should be entirely divided and re-united by some method of suture, preferably by invagination. Repair of Complete Transverse Division of an Artery by Invagina- tion. — Murphy's Method: The artery is united end-to-end by invagination. 120 OPERATIONS UPON THE ARTERIES. A piece of finely twisted silk is threaded upon two needles — one of which is passed through the outer and middle coats of the proximal end (intussus- ceptum), in the transverse axis — then both needles, held side by side, are simultaneously passed through all coats of the distal end (intussuscipiens) about 7 to 12 mm. (J to J inch) from its free end, passing from within outward. Two or three of these sutures are applied equidistantly. The distal end is then slit a short distance (the slit not extending as low as the sutures) to aid in invagination — which is then accomplished by traction upon the sutures — which are, after invagination is complete, tied lightly with reef-knot. Rein- forcing sutures are placed at the line of junction, and uniting the lips of the slit — but do not pass through the intima of the intussusceptum. (See Figs. 67 and 68.) Repair of Longitudinal or Oblique Wounds of the Larger Vessels, or of Complete Transverse Division, by Combination Cobbler's Stitch through all the Coats, and Interrupted Sutures through the Outer Coats. — Based upon the fact that union between approximated endothelial coats of the blood-vessels -rapidly occurs — and realizing the advantages of a suture which, while applied through very limited available extent of tissue, must bring together relatively broad surfaces of vessel-wall closely and strongly, in order to withstand the constant hammering and distention of the arterial and distention of the venous flow, the author suggests a method (original as far as he knows) of tightly and firmly approximating relatively broad sur- faces of the tunica intima of the larger vessels, especially arteries, by means of the cobbler's stitch through all the coats, followed by reinforcing the margins of the wound by interrupted sutures through the tunica adventitia and tunica muscularis. Irrespectively of the theoretical consideration it has been found, practically, that through-and-through suturing of all the coats of a vessel is not followed by harmful consequences. Therefore, although the necessity for guarding against this complete penetration of all coats now no longer exists, yet in the present method, notwithstanding all coats are actually pierced, the effect of the suture is most probably not that of a through-and-through suture — since the method of its application makes it likely that little, if any, portion of the stitch itself comes into contact with the blood-current, owing to the recession upon the inner aspect of the vessel and protection of the stitches by consequent contact with and union of adjacent intimre, corresponding to and caused by the external ridging produced by this particular form of suturing. The materials used for the continuous through-and-through suture are the finest chromic gut, having sufficient tensile strength — and, for the interrupted sutures of the outer coats, fine silk. Fine silk or fine Pagenstecher thread may be used in the primary as well as in the secondary suturing. The finest possible special round needles which will carry the suture should be used — with eyes nearly as large as the diameter of the head of the needle as mechani- cally possible, that the thread following the needle-puncture may completely fill the puncture in the vessel-wall. Where feasible, a straight needle long enough to be held in the fingers should be used — or, where necessary, shorter, straight needles or curved ones may be employed in a convenient form of needle-holder. During the placing of the sutures the opposite edges of the artery are held in contact and ready to receive the suture by two delicate dis- secting (ribbed, but not toothed) forceps in the fingers of an assistant, who so approximates the lips of the vessel- wound as to aid the operator materially in the process of suturing (Fig. 69, F, F). Prior to closing the main (skin) wound, in all methods of vessel-suturing, the newlv sutured vessel-wall should ARTERIORRHAPHY. 121 be supported, where possible, by suturing muscle, or other resistant neighboring tissue, in such a way as to protect the vessel at this site. While necessarily the caliber of a vessel thus sutured is encroached upon, in the case of the larger vessels this encroachment is not sufficient to be of practical importance — and, in the case of smaller vessels, the remaining lessened channel is better than no channel at all, which was the case in formerly ligating all wounded vessels. (A) Suture of a Longitudinal Vessel-wound. — The opposite lips of the wound are each grasped with for- ceps and held in contact (Fig. 69, F, F). The needles (one held be- tween the operator's thumb and first finger of each hand) are made to enter the lips of the wound on oppo- site sides and pass in opposite direc- tions (Fig. 69, B, B), beginning just above one of the limits of the wound, at a distance of about 1.5 mm. ( T *g- inch) from a line that would represent a continuation of the vessel-wound (Fig. 69, A). The needles now change hands, and are made to pass through all the coats in an opposite direction, about 3 mm. (| inch) fur- ther along the wound. This char- acteristic cobbler's stitch is continued as indicated in the figure — the thread being drawn tightly at the end of each stitch. Finally, the two ends of the thread are tied in a reef knot at the far end of the wound. This method of suturing will ridge up the vessel at the site of its application — approxi- mating two surfaces of intima slightly more than 1.5 mm. (y 1 ^- inch) in width, and a little longer than the length of the wound — and causing the two free margins of the lips of the wound to lie parallel, presenting them- selves prominently forward in lateral, but not edge-to-edge, contact, as shown in Fig. 69. This lateral con- tact is now converted at the margins into a partial, if not complete, edge-to-edge contact by the reinforcing interrupted silk sutures — which enter the tunica adventitia about 1 mm. (less than y 1 ^ inch) from the free margin (Fig. 69, D, D) — pass through the tunica adventitia, and all or a greater part of the tunica muscularis — to emerge just between the tunica muscularis and tunica intima — thence, crossing the inner aspects of the vessel-wall wound, enter between the tunica intima and tunica muscularis of the opposite lip — to emerge through the tunica adventitia at a distance corresponding with the point Fig. 69. — Repair of Longitudinal Wound of Artery by Combination Cob- bler's Stitch through all Coats, and Interrupted Sutures through Outer Coats, as suggested by the Author: — A, Beginning of cobbler's stitch through all coats; B, B, Needles in act of passing through same opening in opposite directions, in characteristic cobbler fashion; C, C, Three interrupted sutures through outer coats, ready to be tied; D, D, Two interrupted sutures tied, passing through outer coats. 122 OPERATIONS UPON THE ARTERIES. of entrance — after which the opposite ends of the interrupted sutures are tied (Fig. 69, C, C) — thus practically bringing the margins of the opposite lips into close contact — and thereby affording opportunity of union not only between the relatively broad surfaces of endothelial coats, but also between the free edges of the corresponding coats at their margins. While this method is of application to vessel-wounds in general, it is particularly applicable to brittle, atheromatous vessels, in which it is difficult to make the ordinary form of suture hold. (B) Suture of an Oblique Vessel-wound. — There is no special principle involved in suturing wounds which cross the long axis of a vessel obliquely ' « "•:-. Fig. 70. — Repair of Oblique Wound of Artery by Combination Cobbler's Stitch through all Coats, and Inter- rupted Stitches through Outer Coats, as suggested by the Author: — A, A, Cobbler's stitch being completed by needles passing through all coats in opposite direc- tions; B, B, Interrupted sutures passing through outer coats. Fig. 7 1 . — Repair of Complete Trans- verse Division of Artery by Combina- tion Cobbler's Stitch through all Coats, followed by Interrupted Su- tures through Outer Coats, as sug- gested by the Author: — A, A, Needles passing in opposite directions through all coats, in act of placing cobbler's stitch; B, Superficial tier of interrupted stitches through outer coats, showing three untied and two tied. not already brought out in the longitudinal suturing. In proportion as such wounds correspond with the long axis of the vessel does the technic corre- spond with that of the longitudinal wounds — and in proportion as the wound approaches complete encircling of the vessel, though in an oblique direction, is the technic equivalent to that employed in complete transverse division of the vessel (Fig. 70). (C) Suture of Complete Transverse Division of a Vessel. — The above principles are here applied to a circumferential wound of a vessel — the edges of the wounded vessel-wall representing a transverse section rather than a longitudinal or an oblique one. In carrying the cobbler's stitch around the vessel it is well to calculate that corresponding extents of the circumference ARTERIORRHAPHY. 123 are being taken up, so that no redundancy of any one aspect will be left in terminating the line of suture (Fig. 71, A, A). The tier of reinforcing interrupted sutures is applied in the manner described for longitudinal wounds (Fig. 71, B). Fig. 72. — Circular Arteriorrhaphy in Complete Division of an Artery: — A, Method of Salomoni and Tomaselli — interrupted sutures through all coats. ■fig- 73- — B, Same, method of Gliick — interrupted sutures through outer coats, protected by cylinder of decalcihed bone, ivory, or rubber. Other Methods of Suturing Arteries. — Besides the methods above described, end-to-end union may be accomplished by suturing through all Figs. 74, 75, 76. — Circular Arteriorrhaphy, after Complete Division of an Artery:— The methods of Bougie. the coats of both ends, after the manner of Salomoni and Tomaselli (Fig. 72., or by the method of Gliick (Fig. 73), or by one of the methods of Bougie (Figs. 74, 75, 76). 124 OPERATIONS UPON THE ARTERIES. CLOSURE OF WOUNDS OF LARGER ARTERIES BY SPECIAL RUBBER PLASTER. BREWER'S METHOD. Description. — The portion of the vessel involved in the wound is encircled by several turns of elastic plaster. This plaster is made by coating long, narrow, ribbon-like sheets of thin, pure rubber with the material of which zinc oxid plaster is coated, and is sterilized by formaldehyd vapor. Following the application of the plaster, the wounded vessel is further reinforced, where possible, by bringing neighboring muscle or connective tissue into contact with it in the process of suturing the wound. Position; — Landmarks; — Incision. — Determined by the special oper- ation. Operation. — Having exposed the wounded vessel, the artery is isolated Fig. 77. — Brewer's Method of Closing Arterial Wounds by Special Rubber Plaster: — The femoral artery is exposed at the apex of Scarpa's triangle. The circulation is temporarily controlled by special artery clamps applied above and below the wound (here represented by a longitudinal slit in the vessel-wall). The adhesive rubber ribbon has been drawn under the vessel and is held taut by forceps. sufficiently for manipulation, is brought out of its sheath, and is gently com- pressed above and below the wounded site by the fingers, or by some special clamps which compress just enough to control the circulation without injuring the vessel. By means of pledgets of gauze wet with ether the wall of the artery is cleaned of blood and made dry, so that the rubber plaster will adhere. A strip of the rubber ribbon is now carried under the artery, with its adhesive surface next the vessel, the two corners of its end grasped by forceps, preferably of the artery -clamp kind (Fig. 77). The shorter end of the adhesive strip which has been carried beneath the artery is now brought up over and into contact with the vessel, and the longer end of the plaster carried over the shorter end by reversing the position of the ends of the plaster, so that they will now ANEURISMORRHAPHY. be in the position shown in Fig. 78. During this manoeuver the plaster is kept gently on the stretch, so as to subject the vessel to slight pressure and compression in the act of rolling the plaster around it. Two or more encirclings are made, as deemed necessary — after which the plaster is cut transversely and the artery allowed to drop back into its original position (Fig. 79). The Fig. 70. — Same : — The vessel has been sur- rounded by several turns of the rubber plaster, which is then cut transversely. Fig. 78. — Brewer's Method of Clos- ing Arterial Wounds by Special Rubber Plaster: — The end of the rubber plaster be neath the vessel is brought into contact with the vessel by carrying the forceps grasping this encl to the left — after which the longer end is carried over to the right. neighboring parts, where possible, are so sutured as further to support the wounded vessel. The main wound is sutured without drainage. ANEURISMORRHAPHY OPERATION FOR RADICAL CURE OF ANEURISM BASED UPON ARTERIORRHAPHY. MATAS'S OPERATION. Description. — The objects sought in this plastic procedure are the restor- ation of the blood-current and the obliteration of the aneurismal sac. The accomplishment of these objects is dependent for its success upon the readily occurring union of the general endothelial lining, which, continuous with that of the vessel, not only covers the common arterio-aneurismal orifice between vessel and aneurismal sac, but the interior of the sac as well. In operat- ing upon the saccular form of aneurism (Fig. 81) the aneurismal sac is laid 126 OPERATIONS UPON THE ARTERIES. open; — the aneurismal orifice is exposed and closed by suture in such a way as not to interfere with the circulation through the main vessel — and the cavity of the sac is completely obliterated by suturing its walls and overlying integu- mentary parts to its floor. In operating upon the fusiform variety (Fig. 89) in those cases where the walls are pliable and available, the circulation through the part is restored by forming a new blood-channel by suturing the adjacent floor of the sac over a temporarily placed rubber tube — which is withdrawn just before tightening the final sutures — after which the aneurismal sac is obliterated. In the fusiform variety, where the aneurismal walls are so bound down or are of such consistency as to make it impossible to bring them together to form a new channel; the two orifices are closed by suture and the restoration of the blood-current is permanently aband- oned (Fig. 91) — the sac, however, being ob- literated in the usual manner. Indications. — The method of restoration of current is applicable in all cases where — (a) a distinct sac exists (whether fusiform or saccular); (b) where the proximal circula- tion can be temporarily controlled; and (c) where the sac-wall is sufficiently free and pliable to be manipulated in the necessary manner. Where the aneurismal sac is not sufficiently free and pliable, the obliteration of the current, as well as the sac, is necessary. In the fusiform type of aneurism two open- ings of the main vessel exist — one at either end, generally with a groove connecting them. Here a new blood-channel is built over a rubber tube temporarily inserted into the openings of the aneurism and lying in the groove, or along the bed between the open- ings — thus restoring the circulation. In the saccular type of aneurism a single opening of the main vessel exists. Here the margins of the opening are brought together by suture, leaving the artery intact and capable of carry- ing on circulation. The operation differs slightly in the different types. The opera- tion, in general, will be described in the case of saccular aneurisms — after which the special features of the other types will be pointed out. The advantages of this method of operating are the following: — Restoration of blood-current through the main vessel in favorable cases; — simpler tech- nic; — less traumatism; — elimination of any ligaturing; — no disturbance of structures in vicinity of aneurismal sac; — preservation of collateral circula- tion; — usual prompt healing by the approximation of the integumentary coverings to the floor of the sac. Position; — Landmarks; — Incision. — Will be determined by the special aneurism. Operation. — (A) For the closure of the arterio-aneurismal opening and the restoration of the blood-current in the artery, in saccular aneu- risms : — (1) Where the position of the aneurism permits, the entire circulation Fig. 80. — Aneurismorrhaphy: ■ — First stage of operation. Ex- posure of popliteal aneurism — a fusiform aneurism laid open, show- ing two openings and an intervening groove. (Modified from Matas.) ANEURISMORRHAPHY. 127 through the limb is controlled by a rubber constrictor. Otherwise the aneu- rism is exposed and the artery is controlled proximally by Matas's special curved aneurism clamp-forceps, Crile's clamps, by a traction-loop around the vessel, or by some other device. In cases where the entire circulation of the limb cannot be preliminarily controlled, profuse bleeding may occur, on laying open the aneurism, from the collaterals opening into the sac. (2) A free median incision of the overlying parts is made — after which the adjacent structures are retracted away from the presenting aspect of the aneurismal sac (Fig. 80). (3) The sac is now incised from end to end — guarding against sudden hemorrhage from one or more unknown collaterals, which may be temporarily controlled by thrusting a gauze pack tightly into the aneurismal sac. (4) All laminated fibrin is rubbed off the walls of the aneurism with gauze — and the walls themselves are also briskly rubbed with gauze to promote endothelial proliferation. (5) The main arterio-aneurismal opening is now closed by two tiers of interrupted chromic gut sutures. The sutures of the first tier pass through the margins of the orifice without entering the lumen of the artery and without piercing the entire thickness of the aneurismal wall- extending somewhat beyond both poles of the opening. They are planned so as to afford broad serous surfaces for union (Fig. 81). A rubber tube, Fig. 81. — Aneurismorehaphy: — Operation to restore current in saccular aneurism — first stage. Placing of interrupted sutures through borders of arterial opening into aneurism — leaving channel of vessel intact. (Modified from Matas.) temporarily inserted within the lumen of the vessel, may be used to aid suturing, if necessary — as in fusiform aneurisms. The lumen of the artery is thus not interfered with, and the circulation is 'preserved. The sutures of the first tier are now tied (Fig. 82), the knots being to one side of the median line — thus approximating the two sides of an ellipse (Fig. 81) into a median straight line (Fig. 82). A second or reinforcing tier of interrupted sutures is now placed — not only strengthening the primary line of sutures against leakage, but also ridging up the floor of the aneurismal sac and helping, thereby, to obliterate it (Fig. 82). The details of the two tiers of suturing are better 128 OPERATIONS UPON THE ARTERIES. seen in Fig. 87. Both of these tiers of suture may be continuous (Fig. 86). (6) The mouth of any collateral vessel opening into the sac is closed by two Fig. 82. — Aneurismorrhaphy: — Operation to restore current in saccular aneurism — second stage. The interrupted sutures through the borders of the arterial opening have been tied. A second tier of interrupted sutures, overlying and outlying the first, is being placed through the inner coats of the aneurismal sac — which, upon being tied, will bury the first tier and ridge up the floor of the aneurism in the median line. (Modified from Matas.) or more interrupted sutures placed as shown in Fig. 91, and tied as shown in Fig. 92. (7) The tourniquet around the limb, or the special clamps upon the vessel, is now removed and the efficiency of the suturing tested. All hemor- ___>c> i /*t F- Fig. 83. — Aneurismorrhaphy: — Cross-sec^on of the parts involved in the operation where the current is restored, together with the complete obliteration of the sac of the aneurism: — A Integuments; B, Aneurismal sac; C, Walls of blood-channel; D, First tier of sutures, approxi- mating walls of blood-channel; E, Second tier of sutures, approximating floor of sac over first tier; F, F, Sutures through walls and into floor of aneurism, approximating former to latter; G, Suture through margin of integuments and into floor of sac, over second tier; H, Restored blood-channel. (Modified from Matas.) Fig. 84. — Aneurismorrhaphy : — Cross-section of the parts involved in the operation where the blood-channel, together with the aneurismal sac, are completely obliterated. The figures are the same as in the above, except that H here represents the obliterated blood-channel. (Mod- ified from Matas.) ANEURISMORRHAPHV. 129 rhage in the general wound is controlled by ligature. (8) The empty aneu- rismal sac is next obliterated. This is accomplished by means of four sutures placed in the manner shown in Fig. 88. Four interrupted sutures of chromic gut, kangaroo-tendon, or silkworm gut are placed, as indicated in the illustration, in the floor of the aneurism by means of an ordinary curved needle or Reverdin needle, passing deeply into but not through the walls of the sac (Fig. 88, A, A). Each one of the free ends of these four loops is now brought out through the corresponding aspect of the outer wall (or roof) of the aneurism and overlying integumentary parts, by means of a Reverdin needle (Fig. 88, B, B), which is passed through the skin on into the aneurism through all the Fig. 85. — Aneurismorrhaphy: — Final stage of operation. The walls of the aneurism-sac and the integuments are sutured to the floor of the sac over gauze rollers, thus firmly approximating the former to the latter. (Modified from Matas.) Fig. 86. — Aneurismorrhaphy : — Operation to restore current in saccular aneurism. In the present instance both tiers of sutures are continuous — the first has been placed and is being tightened — and the second is being placed. The principles of the operation, other- wise, are the same as in the corresponding operation by interrupted sutures (Figs. Si and 82). (Modified from Matas.) intervening structures. These sutures are tightly tied over small gauze rolls — thereby firmly infolding and compressing the roof of the aneurismal sac and all overlying structures, to the floor of the sac and the central elevation, or ridging, formed by the two tiers of suturing. The result of the tying of these sutures and the consequent relation of the parts are shown in the diagrammatic cross-section (Fig. 83). The two flaps thus inturned consist of aneurism-wall and integumentary coverings — the approximation obliterating all dead space between the wall of the sac and the integuments, on the one side, and the floor of the sac, on the other. (9) The main wound is now closed by a median line of interrupted sutures (Fig. 85). l 3° OPERATIONS UPON THE ARTERIES. Fig. 87. — Aneurismorrhaphy: — Showing in greater detail the steps of the last two illus- trations (Figs. 81 and 82). All but two of the first tier of interrupted sutures have been placed and tied. The second tier is being placed and is in the act of burying under the first tier and ridging up the floor of the aneurism. (Modified from Matas.) (B) For the closure of the arterio-aneurismal opening and the resto- ration of the blood-current in the artery, in fusiform aneurisms : — The preliminary and final steps are the same as just described. Owing to the distance between the orifices which usually exists in fusiform aneurisms, and Fig. 88. — Aneurismorrhaphy: — Operation to restore current in saccular aneurism — third stage. The second tier of interrupted sutures is here shown tied. A, A, Placing interrupted sutures, with curved needle, in floor of aneurism, preparatory to approximating the aneurism- wall to the floor of the aneurism; B, B, Reverdin needle in act of drawing the sutures (just placed) through the aneurism wall. (The final tying of these four sutures is shown in Fig. 83, F, F, and Fig. 85.) (Modified from Matas.) ANEURISMORRHAPHY. 131 Fig. S9. — Aneurismorrhaphy : — Operation to restore current in fusiform aneurism. Suturing borders of opening and of connecting groove over a temporary rubber tube — the ends of which are seen projecting into the lumen of the vessel, at either end. The interrupted form of suture is here shown. (Modified from Matas.) the inability to form a channel along this intervening distance without some form of support, a rubber tube (the end of a catheter, for instance) is inserted into these openings and made to occupy the groove which generally exists between the two openings (Fig. 89). Over this tube the sac is sutured, as Fig. 90. — Aneurismorrhaphy: — Operation to restore current in fusiform aneurism. The interrupted sutures placed in the preceding figure have been tied at the two ends — while those in the center are being held apart during the withdrawal of the rubber tube, after which these also are tied. Some of the second tier of sutures are shown in place, ready to be tied. (Modified from Matas.) 132 OPERATIONS UPON THE ARTERIES. Fig. 91. — Aneurismorrhaphy: — Operation to obliterate openings and channel in fusiform aneurism. All of the first tier of sutures is placed, and the lower half tied, obliterating the lower opening and half of the channel. The lower half of the second tier is placed, but not tied. Sutures are seen in the mouth of a collateral, opening upon the wall of the sac. (Modified from Matas.) in Witzel's gastrostomy (page 959). All the sutures are placed before any are tied. The end sutures are then tied over the tube — when the tube is with- Fig. 92. — Aneurismorrhaphy: — Operation to obliterate openings and channel in fusiform aneurism — second stage. The second tier of suturing (which is here a continuous suture) is shown, entirely concealing the first tier and all evidence of openings and channel. A, A, Placing interrupted sutures, with curved needle, in floor of aneurism, preparatory to approximating the aneurism wall to the floor of the aneurism; B, B, Reverdin needle in act of drawing the sutures (just placed) through the aneurism wall. (The final tying of these four sutures is shown in Fig. 83, F, F, and Fig. 85.) The closure of the mouth of a collateral vessel is shown in the wall of the aneurism-sac. (Modified from Matas.) OPERATION FOR RADICAL CURE OF ARTERIOVENOUS ANEURISMS. 133 drawn through the separated middle sutures, which are then tied (Fig. 87). The operation is completed in the general manner — a second tier of sutures being used here as elsewhere. (C) For the obliteration of both blood-channel and aneurismal sac, in fusiform aneurisms : — In cases of fusiform aneurism where it is found that, owing to such circumstances as the adhesion of the floor of the aneurismal sac to some unyielding structure, or owing to some pathologic change preventing the necessary manipulation of the sac-wall, a new blood-channel cannot be made, nothing remains but to close both arterio-aneurismal orifices and the intervening groove without attempting to bring about the restoration of circulation. In these cases both the orifices and intervening groove are closed by a double tier of sutures, placed in the ordinary manner (Figs. 91 and 92), after which the sac is treated in the usual way. The cross-section of an obliterating operation of this nature is shown in Fig. 84. Comment. — (I) Union takes place between the serous surfaces lining the sac (the arteries being mesoblastic in origin). (2) The sutures should take strong hold in the walls of the sac. (3) Superfluous sac-wall is to be excised. (4) The perisaccular structures should not be disturbed more than absolutely necessary, as most of the nourishment of the sac comes to it through these structures. (5) Firm pressure should be applied in the outer dressing over the aneurism site, to aid in keeping in contact the parts held by the transfixion sutures. (6) In the case of the limbs, the part is to be elevated and kept swathed in cotton-batting to maintain the temperature of the part, applying artificial heat if necessary. OPERATION FOR THE RADICAL CURE OF ARTERIOVENOUS ANEU- RISMS, WITH PRESERVATION OF CIRCULATION IN ARTERY AND VEIN. MATAS-BICKHAM OPERATION. Description. — This technic consists, as suggested by the author, in the application to the arteriovenous type of aneurisms of the method of radical cure which Matas applies to ordinary arterial aneurisms- — with the modifications necessitated by the special forms of arteriovenous aneurisms, thus preserving the integritv of both artery and vein and sparing the patient the great risk attendant upon the loss of circulation through one or both of these vessels. Where this form of operation can be carried out, the composite aneurismal sac is exposed — its double blood-supply controlled — the sac incised — the openings of artery and vein sutured- — and the common sac either obliterated by approxi- mation of its walls, as carried out in the operation of aneurismorrhaphy — or the sac is excised in whole or in part and the orifices closed by suturing. Indications. — In all cases — (a) where a distinct sac exists;- — (b) where the arteriovenous circulation through the aneurism can be controlled prior to incising the sac; — and (c) where the structure and surroundings of the sac will admit of the necessary manipulations. It is a known fact that the nature of arteriovenous aneurisms cannot always be determined clinically, and are often only discovered when the site has been exposed by operation. But it would be warrantable to expose the aneurism in every appropriate case and, where feasible, make an attempt to preserve the circulation through both vessels. Position; — Landmarks; — Incision. — Determined by the special opera- tion. 134 OPERATIONS UPON THE ARTERIES. Operation. — (A) Upon the Varicose-aneurism Type of Arterio- venous Aneurisms, with Preservation of the Sac— In these cases an aneurismal sac intervenes between artery and vein, communicating with both vessels by separate mouths (Fig. 93). After temporarily controlling Fig. 93. — Varicose-aneurism Type of Arteriovenous Aneurism of Left Common Femoral Artery and Vein — showing the Application to this Class of Aneurisms of the Matas Method of Operating upon Ordinary Aneurisms: — The opening of the femoral artery into the common aneurismal sac is shown on the right, with interrupted Lembert gut sutures in position, ready to be tied. The opening of the femoral vein is seen on the left, with similar Lembert sutures in position. On the left of the sac two gut sutures are in the act of being placed, which, when tied, will approximate the roof of the sac (including skin and inter- vening tissues, which are not here shown) to the floor of the sac. Similar sutures will approxi- mate the roof and floor of the sac upon the right. (From Bickham, "Annals of Surgery," May, 1904.) the circulation through the involved vessels, lay open the intervening aneuris- mal sac, locate both the arterial and venous openings into it, and close them off by fine chromic gut Lembert sutures applied interruptedly, followed by obliteration of the sac by suturing its roof, including the overlying parts, to its floor. It is to be remembered that an endothelial layer usually lines the cavity of an arteriovenous aneurism, and is especially apt to be present near the openings into the sac; although the absence of an endothelial lining OPERATION FOR RADICAL CURE OF ARTERIOVENOUS ANEURISMS. 135 would not seem to be a contraindication to the application of this method, as the surfaces of even a pure connective-tissue sac could be roughened by curettement or friction to promote adhesion of its walls. This lechnic is shown in Fig. 93. (B) Operation upon the Aneurismal-varix Type of Arteriovenous Fig. 94. — Aneurismal-varix Type of Arteriovenous Aneurism of Left Common Femoral Artery and Vein: — The opening of the femoral artery into the varicosed vein is shown, with interrupted Lembert gut sutures in position, ready to be tied. The longitudinal incision in the vein, for approaching the arteriovenous opening (and which is here made somewhat unnecessarily long) is shown in the act of being closed by two methods of suturing — above, by the continuous Lembert of the outer coats — below, by interrupted ordinary sutures of the outer coats. (From Bickham, "Annals of Surgery," May, 1904.) Aneurisms, with Preservation of the Sac. — In these cases there is a vari- cosed dilatation of a vein, caused by the force of the arterial circulation poured into it through a direct communication from an artery, without an intervening aneurismal sac (Fig. 94). After temporarily controlling the circulation through the involved vessels, make a longitudinal incision through the enlarged and varicosed vein for as limited an extent as would seem to afford approach i3 6 OPERATIONS UPON THE ARTERIES. to the opening into the vein, and so placed as to lie directly opposite this communicating opening from the artery, retract the lips of this wound in the vein, thus exposing the interior of the vein and the arterial communication, suture up the opening of the artery into the vein in the usual Matas manner, and then close the incised vein by a continuous lateral suture of, approxi- mately, the Lembert type. Fig. 94 illustrates tin's technic. Owing to the fact, in aneurismal-varix cases, that foreign material will be left in contact with the venous current by this manner of suturing (which does not apply in the varicose-aneurism cases), with the consequent theoretical possibility of U^" Fig. 95. — Same as Fig. 94, showing a continuous Lembert gut suture, which, having been passed through the outer coats of the thickened vein at the angle of junction of vein and artery, and knotted, is passed on between the coats of the vein until its varicosed cavity is entered very near one end of, and immediately above, the first tier of interrupted sutures — and is then made to bury i 1 this first tier and itself in continuous Lembert fashion — and, emerging at the opposite angle of junction of vein and artery, is tied in the same manner as at its entrance. (This suture is not yet tightened throughout.) (From Bickham, "Annals of Surgery," May, 1904.) pieces of the suture forming emboli, it would be well to use very fine gut for this suture, and to tie very small, closely cut knots. Or it would be better still to bury-in the row of interrupted Lembert sutures, closing off the arterial opening, by means of a continuous buried suture introduced from without entirely through the vein, at one of the angles of junction of artery and vein, passing in continuous Lembert fashion above the interrupted sutures, through part of the thickness of the wall of the vein, and out through the entire thickness of the vein at the opposite angle of junction of artery and vein, in very much the same manner as a subcuticular suture is passed, and so placed that the suture throughout its entire length and its points of entrance and exit to and OPERATION FOR RADICAL CURE OF ARTERIOVENOUS ANEURISMS. 137 from the vein is also buried, which, in the case of a thickened, varicosed vein would be easier of accomplishment than in a normal vein. This second tier of suturing is shown in Fig. 95. (C) Operation upon the Varicose-aneurism Type of Arteriovenous Aneurisms, with Excision of the Sac. — More recently, successful artery- suturing and vein-suturing have been demonstrated, and these principles may be applied to arteriovenous aneurisms. In those cases of the varicose- aneurism type where both arterial and venous circulation can be controlled proximally to the sac, and the sac exposed by dissection, the aneurismal sac Fig. 96. — Varicose-aneurism of Left Common Femoral Artery and Vein, treated by Excision of the Sac, followed by Suturing of the Openings in the Vessels: — Upon the right, a small elliptical piece of the sac is shown connected with the arterial opening, with the first tier of interrupted Lembert gut sutures in position, ready to be tied. Upon the left, a similar elliptical piece of sac has been left connected with the venous opening. The first row of Lembert sutures has been tied, and a second tier of ordinary sutures through all the coats is being applied, burying in the first tier. Fig. 96 is the same as Fig. 93, with the sac excised. (From Eickham, "Annals of Surgery," May, 1904.) may, in appropriate cases, be excised up to very near the arterial and venous openings into it, and these openings then closed by a row of interrupted Lembert gut sutures, followed by a second burying-in row through the free margins of the small portion of the sac left around the jug-like opening into the artery and vein, as shown in Fig. q6. (D) Operation upon the Aneurismal-varix Type of Arteriovenous Aneurisms, with Excision of the Sac. — In those cases of the aneurismal- varix type, where, similarly, both the arterial and venous circulation may be arrested proximally to the arteriovenous communication, and this site of 138 OPERATIONS UPON THE ARTERIES. communication be exposed by dissection, the artery and enlarged vein may, in appropriate cases, be severed from each other by an incision through the connecting opening, made parallel with artery and vein, and these openings closed by lateral suture with fine gut or silk, the openings left by the incision of the connection between artery and vein being, in the aneurismal-varix, less jug-like and with less free margin than in the varicose aneurism. This technic Fig. 97. — Aneurismal-varix of Left Common Femoral Artery and Vein, treated by Severance of Vessels from each other, followed by Suturing of their Openings: — On the right, interrupted gut sutures are shown passing through the outer coats of the artery, ready to be tied. On the left, a continuous Lembert gut suture through the outer coats is shown closing the venous opening. Fig. 97 is the same as Fig. 94, with the vessels cut apart. (From Bickham, "Annals of Surgery," May, 1904.) is shown in Fig. 97. If necessary, these openings left by the liberating incision could be trimmed into elliptical shapes. Comment. — While recognizing that it is ideal to excise the aneurismal sac of a varicose aneurism and suture up the openings in the artery and vein, and to cut apart artery and vein in an aneurismal-varix and somewhat similarly suture up the openings in the vessels which the severing of the common con- nection between them has left, leaving the circulation intact in both class of cases — yet there must occur cases in which there is difficulty of satisfactorily exposing the parts, or where there is difficulty in, and contraindication to, the removal of the sac of a varicose aneurism, or the cutting apart of artery and vein in an aneurismal varix- — and in such cases the Matas method would OTHER OPERATIONS FOR RADICAL CURE OF ANEURISM. 139 seem to be a desirable technic. And while one feature is common to all of these more modern methods, and that is, the retention of the circulation through artery and vein, yet it may be questioned where, from the circumstances of the case, it is optional, whether the Matas method would not really be preferable in dealing with the varicose aneurism type of cases; for it would seem the suturing together of the roof and floor of the sac would strengthen the suturing of the arterial and venous openings into the sac and make secondary hemor- rhage less likely, and also accomplish the end with less traumatism. LIGATION FOR RADICAL CURE OF ANEURISM. Description. — Several methods of applying ligatures for the radical cure of aneurism have been adopted — either as a means alone or in conjunction with other steps. Methods. — (I) Antyllus's Method ("Old Method"): — The sac is incised — the clots are turned out — and the involved artery ligated above and below the sac. (2) Anel's Method: — Ligature of the involved artery just above (proximal to) the sac. (3) Hunter's Method: — Ligature of the main vessel in- volved at some distance above (proximal to) the sac, so that one branch, at least, intervenes between sac and ligature, thereby only partly cutting off the circulation through the sac. (4) Brasdor's Method: — Ligature of the main artery involved beyond (distal to) the sac, entirely cutting off the circulation through the sac. (5) YVardrop's Method: — Ligature of one or more of the distal branches. (6) Extirpation: — Ligature of the main vessel (and collateral branches) above and below the sac, with extirpation of the aneurism — with or without opening the sac. OTHER OPERATIONS FOR RADICAL CURE OF ANEURISM. Acupuncture. — A method of treating aneurisms by the introduction of long needles into their sacs. Several long, fine needles are simultaneously introduced, by the safest route, through overlying integuments, into and through the wall of the aneurism — and on beyond, until in contact with the opposite wall. Here they are allowed to quietly rest for several hours, and are then withdrawn. Repetition of this process may be resorted to upon successive occasions. Coagulation is thus favored. Needling (Macewen's Operation). — The introduction of one or two long needles into the sac, with irritation of its wall. A long, fine needle is introduced, by the safest route, through skin and connective tissue, into and through the wall of the aneurism — and is pushed on until in contact with the inner surface of the opposite wall. The wall of the aneurism is then gently irritated by a process of scratching, by means of the point of the needle — which is then withdrawn. The interior of the sac should be evenly irritated throughout, or at different sites consecutively. This direct irritation of the wall should be only great enough to produce a reparative exudation together with a deposit of fibrin — and thus white thrombi are formed upon the surface of the sac. Two or more needles may be used simultaneously in a large sac, and several hours may be consumed in the process — and their use repeated upon successive occasions. Introduction of Wire. — A fine cannula is introduced, by the safest route, through skin, fascia, and wall of aneurism, into the cavity of the sac. Through this cannula several vards of fine wire (according to size of aneurism) are 140 OPERATIONS UPON THE ARTERIES. introduced and left, the cannula being withdrawn. Cure is effected by the clotting of blood upon this wire meshwork. Catgut, silk, horsehair, and the like have been used — but silvered copper wire has proved the most satis- factory. Comment. — The method of aneurismorrhaphy is preferable to all others in those cases where the circulation can be controlled prior to opening the sac. Second to this, or where this method cannot be applied, one of the methods of ligation, with or without extirpation of the sac, should be used. ARTERIAL FORCIPRESSURE. Definition. — Pressure of artery by artery-clamp forceps. Description. — This is the ordinary method of controlling hemorrhage by seizing arteries in a wound, upon an amputation stump or in the course of any operation — by means of clamp or hemostatic forceps. The forceps are allowed to remain in situ for a period of time after their application, but are not twisted upon their axis (as in the following operation). The hemostat should grasp the bleeding end of the artery, and as little else as possible. Where circumstances allow, the artery to be subjected to forcipressure should be cleared of surrounding connective tissue by a stroke or two of the knife, especially in the case of the larger vessels. In the case of the smaller arteries, the forceps may be removed and nothing further done, with fair certainty that no further bleeding will occur from the crushed vessels. In the case of the larger arteries, a catgut ligature should be applied over the point of the forceps, just prior to their removal (Fig. 293, B). Comment. — In some operations, as in vaginal hysterectomy by the clamp method, the forceps are left in the wound for twenty-four or forty- eight hours or longer. ARTERIOSTREPSIS. Definition. — Torsion of an artery by means of artery-clamp forceps. Description. — The operation consists in the seizing of the divided end of an artery with forreps and twisting it through two or three revolutions, in the direction of its long axis — causing a rupture and retraction of its inner and middle coats wdthin the outer coat. A clot forms and organizes upon and in the roughened inner coats and is protected by the outer coat. The twisting should cease short of causing a complete severance of the end of the artery. This is the common method of arresting hemorrhage from the smaller vessels bleeding in a wound or upon the surface of an amputation stump, and its use should be confined to such vessels, although the femoral artery has been successfully controlled by torsion (occurring in accidents). The technic differs slightly in the application of arteriostrepsis to small and medium vessels: (a) Upon Smaller Arteries: — seize the extremity of the bleed- ing vessel with catch-forceps, including as little tissue, other than the sheath of the artery, as possible — draw it out from its connections and twist it around two or three times and release the hold, (b) Upon Medium Arteries: — seize the extremity of the severed artery, in its long axis, with catch-forceps, and draw the vessel out of its sheath for about 1.3 to 2 cm. (J to f inch). With a second pair of catch-forceps, grasp the bared artery about 1.3 cm. (^ inch) from its extremity, at a right angle to its long axis, and hold steadily. Then TREATMENT OF VASCULAR NEOPLASMS. 141 rotate the vessel two or three times by means of the terminal forceps, and let go. Thus the proximal forceps prevent the artery from being twisted in its sheath, which would sever its vasa vasorum in their passage from the sheath to the arterv. Only that portion of the artery, therefore, between the clamps is twisted. Ligation is generally to be preferred to arteriostrepsis. THE TREATMENT OF VASCULAR NEOPLASMS BY INJECTION OF WATER AT HIGH TEMPERATURE. WYETH'S OPERATION. Description. — This method of treatment consists in the injection into the substance of vascular neoplasms (angeiomata) of water at a temperature of from 190° to 212 F. and over — the object being immediately to coagulate the blood and albuminoids of the tissues. The vascular tumors thus far treated by the author of the operation have been arterial angeiomata (cirsoid aneurisms), capillary angeiomata ('' mother's marks"), and venous angeiomata (cavernous nawi). Instruments. — Syringe with metallic cylinder and an adjustable piston, and needles of various sizes. The water is usually gotten from some im- mediately adjacent vessel in which it has come to a boil, and under all aseptic precautions. In cirsoid aneurisms and in the larger cavernous narvi, where the water should be kept at the boiling-point during the use of the needle and syringe, the author of the operation has devised a long metallic instru- ment under the cylinder of which a Bunsen burner is held during operation. Operation. — (1) The region of the injection is rendered aseptic in the usual manner. The operation is done under complete narcosis. The quan- titv and temperature of the water will vary according to the size and nature of the growth. (2) In arterial and venous angeiomata the needle is carried deeply into the substance of the growth and from 30 to 60 minims of water are thrown out in one site — the needle is then withdrawn from 1.3 to 2.5 cm. (J to 1 inch) and about the same amount injected — and the same steps repeated in different sites until the whole tumor is solidified. While using water of a temperature sufficiently high to coagulate the blood and albu- minoids of the neighboring tissues, it should not be delivered into the part so exceedingly hot nor with such pressure as to cause subsequent sloughing of the overlying parts. Evidence of sufficient distention of the part to dis- continue the injection in that particular site is given by slight bleaching of the skin. (3) In capillary angeiomata, especially upon delicate parts, water a little loelow boiling (about 190 F.) should be used — and only about two to six minims thrown in at a single puncture — beginning at the periphery of the growth. Sloughing is more apt to occur in the capillary angeiomata. The injection may be repeated in from seven to ten days, if necessary. (4) A surgical dressing is then applied and the part kept at rest. Comment. — (i) Especial care is advised in the cases of angeiomata of the neck and scalp, because of oedema. (2) No more than from five to six ounces should be injected at one sitting in the largest growths and very much less in most cases. (3) Sloughing of the tissues from the action of the boiling water deposited in their midst is possible, and is an important consideration in localities when this occurrence would be functionally or cosmetically serious. CHAPTER II. OPERATIONS UPON THE VEINS. PHLEBOTOMY. Definition. — Incision of a vein, or venesection. A method, now rarely practised, of depletion by bleeding, for its effect upon the system. One of the veins of the elbow is usually selected. Indications. — Pulmonary engorgement; engorgement of the right heart; many inflammatory states in sthenic persons. Preparation. — Bend of elbow shaved. Position. — Patient, holding arm extended and abducted, sits upright, that warning by approaching syncope may be given. Surgeon stands in front and to right of either arm. Instruments and Accessories. — Lancet or bistoury; fillet or constrictor; round object to grasp (roller bandage); a graduated "bleeding-bowl" or measure; gauze compress; bandage. Operation. — Apply the constrictor around the lower third of the arm, that the return venous flow may be obstructed and veins about the elbow made prominent, while not firmly enough to obstruct the arterial flow. The grasping and manipulating of the fingers about some object will aid the distention of the veins. The most prominent vein at the bend of the elbow is now selected. The median basilic vein (which is crossed by the internal cutaneous nerve and is parallel with and separated from the brachial artery by the bicipital fascia) is generally chosen — because of its greater prominence, and because of being steadied by the underlying bicipital fascia. The median cephalic vein (which is covered by skin and fascia alone and rests upon the external cutaneous nerve) is often chosen — and is also sometimes the more prominent. The vein is steadied by pressure of the left thumb just below the intended incision. The lancet or bistoury, with its back to the arm, is thrust through the skin over the vessel, and into the distended vein beneath — and is made to cut its way upward and outward at a single stroke — cal- culating to sever, in an oblique direction, about two-thirds of the vein. Upon removing the thumb, the bleeding is allowed to continue until approaching faintness indicates a sufficient loss — when the constrictor is removed, the gauze pad placed over the wound, and a figure-of-eight bandage applied to the elbow. Comment. — (i) If bleeding continue, the vein is to be entirely severed — and the wound may even be enlarged and the vessel doubly ligated. (2) The internal saphenous vein may also be used. PHLEBORRHAPHY. Definition. — The suture of a wound in a vein, without occluding the caliber of the vessel. 142 LATERAL LIGATION OF VEINS. 143 Indications. — Where, in the case of a limited wound to one of the larger veins, it is desired to control hemorrhage without permanently destroying the function of the vein by transverse ligation — and where the wound is too long for lateral ligation. Operation. — Having well exposed the vein and controlled the hemorrhage from the vessel by distal compression (by constrictor, digital compression, or temporary ligature), one of the lips of the wounded vein is steadied with fine forceps,' while a fine needle, armed with finest catgut, pierces this lip, including, if possible, only the external and part of the middle coat. The opposite lip is similarly steadied and similarly pierced, in the opposite direction Fig. 98.— Phlebokrhaphy:— Forceps are seen everting lip of wound for passaj interrupted sutures. of needle and (penetrating part of the middle and the entire thickness of the outer coat). By tying the ligatures carefully, the two lips are brought into even apposition. Interrupted sutures, closely applied, will more safely repair the wound than continuous suture (Fig. 98). Comment. — This method is especially applicable where (a) the wound is longitudinal (and therefore the lips tend to lie parallel), and (b) where the wound extends in any one direction a distance greater than equivalent to the diameter of the lumen. Sometimes instead of approximating lip to lip, the edges of the wound are sutured upon themselves. LATERAL LIGATION OF VEINS. Description. — The application of a ligature to the wall of a vein for the purpose of closing a wound in the vein without obliterating its lumen. Indications. — Wound of one of the larger veins, where it is desired to 144 OPERATIONS UPON THE VEINS. control hemorrhage without destroying the function of the vein by transverse ligation. Operation. — Having controlled hemorrhage and brought the vein well into the field of operation, seize the two lips of the wounded vein in a single bite of a pair of dissecting forceps — draw them outward from the wall of the vein in the form of a small cone (whose apex is formed by the forceps) — and, around the base of the cone, tie, with a reef-knot, a ligature of fine chromicized catgut, relaxing the tension upon the cone at the moment of tightening the F'&- 99- — Lateral Ligation of a Vein : — Forceps are shown drawing outward and puckering together the wounded lateral wall of a vein, around which a ligature is being tied. knot — and thus throwing into folds the walls of the rent in the vessel very much as one puckers together the mouth of a sac with a draw-string. The ligature is cut short and the temporary compression relaxed — and the wound closed as in an ordinary ligation (Fig. 99). Comment. — This method is applicable where the wound does not extend in any one direction a distance equivalent to the diameter of the lumen. Transverse wounds gape more than longitudinal ones and are thus especially suitable for this form of ligature. TRANSVERSE LIGATION OF VEINS. Description. — The ordinary ligation of a vein (in contradistinction to lateral ligation). Indications. — Wounds; arteriovenous aneurism; simple and suppurative phlebitis; thrombosis; angeiomata. Operation. — As for ligation of arteries, in general principle. TEMPORARY LIGATION OF VEINS. Description. — As for same operation upon arteries (page 118). Indications. — As in temporary ligation of an artery (e. g., temporary PHLEBECTOMY. 145 ligation of internal jugular vein in removal of tumor of neck — or while ligating or suturing a wound of the vein). Operation.— Same, practically, as for the corresponding operation upon the arteries (page 118). VENOUS LIGATION EN MASSE. Description. — For parenchymatous hemorrhage. Operation. — Practically identical with intermediate ligation, or ligation en masse, described under Arteries (page 118). VENOUS FORCIPRESSURE. Description. — A method of control of venous hemorrhage, corresponding with arterial forcipressure (page 140) — though of more limited application. PHLEBOSTREPSIS. Description. — Corresponding with arteriostrepsis (page 140). ACUPRESSURE OF VEINS. Description. — Pressure of vein by needle — the pressure being applied directly or indirectly. Rarely resorted to at present. Formerly much used for varicose veins, nasvi, and venous hemorrhage. Operation. — Several methods of acupressure exist, differing in but minor details. The following is the most generally applicable method : The needle (or pin) enters the skin near the involved vein — passes under the vein as closely as possible — and emerges from the skin on the opposite side. Over this needle, in a figure-of-eight fashion, a silk ligature is wound — thus compressing the vein between needle and ligature. PHLEBECTOMY. Description. — Excision of a vein, in whole or in part. Indications. — The usual causes for which veins are removed are vari cosity (e. g., excision of varicosed veins of leg, or of a varicocele) and throm- bosis, especially suppurative (e. g., excision of internal jugular for suppurative thrombosis following middle-ear disease). Operation. — As illustrative of the technic of phlebectomy in general, partial excision of the internal saphenous will be described for varicosity of that vein and its branches — the operation consisting in the total removal of sections of the vein and its branches at intervals along its course. (1) The site and course of the varicose veins are previously marked with nitrate of silver stain (on the preceding day, to allow of darkening), that the land- marks may not be lost during operation. The limb is shaved. An Esmarch is generally used to control hemorrhage. (2) Over the course of the vein (or slightly to one side, or obliquely crossing it) incisions of from 8 to 15 cm. 146 OPERATIONS UPON THE VEINS. (3 to 6 inches) are made at intervals — extending, if necessary, from the inner side of the foot to the saphenous opening in the thigh. These incisions are especially placed over the most marked groups of veins — and those nearer the saphenous opening are usually the first attacked. The skin and bands of fibrous tissue binding down the vein are divided and the involved veins exposed. The vein and its branches are entirely isolated to the extent of the incision, by blunt and sharp dissection. The vein is then gently drawn upon, so as to bring into the open wound as much of itself and branches as possible — when it is gut-ligatured at both ends, each branch being also liga- tured — after which the main vein and its branches are cut away. This site of operation is then packed with gauze, until removal at all indicated sites is accomplished — to allow of cessation of all bleeding before suturing. (3) The edges of the skin wound are then sutured with silk, or silkworm-gut — after which the limb is dressed, immobilized, and slightly elevated. Comment. — (1) The removal of the vein in sections appears to give as good, or better, results as the attempt to remove the entire vein. (2) Avoid wounding the veins in operation, which increases the difficulties. (3) Avoid including a nerve filament in the ligature, which has caused much subsequent pain. INTRAVENOUS INFUSION OF NORMAL SALT SOLUTION. Description. — Injection of normal salt solution into the venous circula- tion. Indications. — Hemorrhage; shock; sepsis; suppression of urine; and other conditions. Preparation of Normal Salt Solution. — The physiological salt solution for man is a mixture of 0.6 of 1 per cent, of sodium chlorid in water (approx- imately, one dram of sodium chlorid to one pint of water). This mixture is to be sterilized and used at a temperature of 115 to 120 F. — being allowed to pass from an elevated funnel or jar through a rubber tube and special cannula into the vein. The salt may be sterilized first — or the solution may be sterilized after preparation. The operation is conducted aseptically throughout. Preparation. — Patient's elbow is shaved and protected by aseptic dressing (if occasion allow). Position. — Patient recumbent; arm extended, abducted and supine. Surgeon on right side of both arms — or on right side of right, cutting from above; and on left side of left, cutting from below. Instruments and Accessories. — Scalpel; dissecting forceps; artery- clamp forceps; funnel; rubber tube; bulbous-pointed cannula; aneurism- needle; ligature; suture; needle and holder; constrictor for arm; gauze com- press, cotton and bandage. Operation. — The most prominent vein at the bend of the elbow is chosen (see Phlebotomy, page 126). If the vein be prominently marked, incise directly over and parallel with it. If not marked, incise obliquely across the known course of the- median basilic vein, the incision running parallel with the direction of the bicipital fascia. Proceed carefully until the vein is located. Expose from 2.5 to 4 cm. (1 to i| inches) of the vein. Pass two catgut ligatures beneath the vein, about 2.5 cm. (1 inch) apart — and tie the distal one permanently (Fig. 100). With a pair of sharp-pointed scissors, curved on the flat, an oblique incision is made through one-half of the vein, between the two ligatures, the apex of the "V" pointing distally. Into this INTRAVENOUS INFUSION OF NORMAL SALT SOLUTION. 147 oblique opening into the vein, the cannula (after seeing that no air is in the instrument) is introduced — and the proximal ligature is tightened about it with a friction-knot. Through this is allowed to flow, by static pressure, as much fluid as is indicated (generally from one to six pints). The cannula is then withdrawn — the proximal ligature is tightened and tied permanently C- -n— U- Fig. 100. — Intravenous Infusion of Normal Salt Solution : — A, Bandage tourniquet ; E, Median basilic vein; C, Distal (to heart) ligature tied about vein; D, Proximal (to heart) ligature loosely placed and ready to be tied about vein ; E, Forceps grasping tongue of wound in vein just made by curved scissors ; F, tip of cannula about to enter vein and around which ligature will be tied ; G, Stop-cock. — and the vein completely severed. The wound is sutured and the dressing applied. Comment. — The fluid may be thrown into an open vein in a stump — or any convenient vein in a wound may be opened. The basilic vein itself may be used — or the internal saphenous. Szumann's infusion solution con- sists of six parts of sodium chlorid, one part of carbonate of soda, and one thousand parts of sterilized water, heated to a temperature of no° to 112 F. Szumann's formula may be expressed as follows: R. Sterilized water 32 oz. Sodium chlorid 1 ^2 dr. Sodium carbonate 15 gr. Mix and heat to 1 io° or 1 1 2° F. CHAPTER III. OPERATIONS UPON THE LYMPHATIC GLANDS AND VESSELS. SURGICAL ANATOMY OF THORACIC DUCT. Course and Relations. — (i) Abdominal portion: — (from origin to dia- phragm); — Begins in abdomen at receptaculum chyli, on anterior surface of second lumbar vertebra, lying behind and to right side of aorta and between aorta and right crus of diaphragm. At aortic opening in diaphragm (in front of twelfth dorsal vertebra) it still lies to right of aorta and has vena azygos major to its right. (2) Thoracic portion : — (from diaphragm to superior thoracic opening) ; — Runs up posterior mediastinum between aorta and vena azygos major, in front of sixth to twelfth dorsal vertebr&\ Opposite to fifth dorsal vertebra it passes to left behind esophagus and aortic arch to enter superior mediastinum, whence it emerges through superior thoracic opening into root of neck, (a) In Posterior Mediastinum (from below upward) — Anteriorly ; pericardium; esophagus; arch of aorta. Posteriorly ; sixth to twelfth dorsal vertebras; anterior common ligament; right inferior intercostal arteries; vena azygos minor (sometimes one of left middle inter- costal veins and vena azygos tertia). Left; thoracic aorta. Right; vena azygos major; right pleura, (b) In Superior Mediastinum; — anteriorly; first part of left subclavian artery. Posteriorly ; upper dorsal vertebra? (first to fifth.) Left ; left pleura. Right ; esophagus. (3) Cervical por- tion : — (from superior thoracic opening to termination) ; — From superior thoracic opening it ascends on left side of neck to level of seventh cervical vertebra — curves thence downward, forward, and outward, arching over apex of left pleura — passing in front of subclavian artery, scalenus anticus muscle, vertebral vein — and behind left internal jugular vein, and behind and then externally to left common carotid artery — and, receiving left jugular lymphatic trunk, empties into left innominate vein at junction of left internal jugular and left subclavian veins. Course and Relations of Right Lymphatic Duct. — About 1.3 to 2 cm. (^ to f inch) in length — formed by union of subclavian and jugular lymphatic ducts — passes downward and inward — and empties into venous circulation at junction of right internal jugular and subclavian veins. SUTURE OF THORACIC DUCT. Description. — Suture of the thoracic duct is indicated in wounds of the duct occurring from external injury, or in the course of an operation. Operation. — The method of suturing the thoracic duct is similar to that employed in suturing a vein (see Phleborrhaphy, page 142). Having completed the technic of suturing the duct itself, the neighboring tissues should be drawn over and sutured about the wound in the duct, to aid in closing and reinforcing the sutured site — and the overlying skin should be SURGICAL ANATOMY OF AXTERO-LATERAL ASPECT OF NECK. 149 sutured throughout and pressure applied. Minimum nourishment should be administered to the patient, to keep the duct as empty as possible until union of the wound has occurred. Comment. — If possible, the right duct should be similarly dealt with. LIGATION OF THORACIC DUCT. Description. — The thoracic duct, where completely severed by accident, has been ligated, and recovery lias followed — although there has been a question as to whether, in such cases, a branch of the main duct has not existed and maintained the circulation. Suturing, however, is always prefer- able to ligation, where possible. Where ligation is performed, the technic is the same as that for ligating a vein (pages 143 and 144). Comment. — The right lymphatic duct may also require ligation if its divided ends be discovered in a wound. SURGICAL ANATOMY OF ANTERO-LATERAL ASPECT OF NECK. Boundaries of Antero-lateral Aspect of Neck. — Superiorly : lower border of body of inferior maxilla, and imaginary line from angle of inferior maxilla to mastoid process. Inferiorly : upper border of clavicle. Ante- riorly : median line of neck. Posteriorly : anterior border of trapezius. Subdivisions of Quadrilateral Surface of Neck. — (a) Anterior Triangle — divided, by digastric muscle above and anterior belly of omohyoid below, into submaxillary, superior carotid, and inferior carotid triangles, (b) Posterior Triangle — divided, by posterior belly of omohyoid, into occipital and subclavian triangles. Anterior Triangle. — Boundaries, anteriorly: median line of neck, from chin to sternum. Posteriorly : anterior margin of sternomastoid muscle. Superiorly : lower border of body of inferior maxilla, and line from angle of inferior maxilla to mastoid process (base). Inferiorly: at sternum (apex). This triangle is subdivided into submaxillary, superior carotid, and inferior carotid triangles. Submaxillary Triangle. — Boundaries : Superiorly — lower border of inferior maxilla, and line from angle of inferior maxilla to mastoid process. Inferiorly — posterior belly of digastric and stylohyoid. Anteriorly — anterior belly of digastric (or middle line of neck). Coverings: integument; super- ficial fascia; platysma; deep fascia; branches of facial nerve; branches of superficialis colli nerve. Floor: anterior belly of digastric; mylohyoid; hyoglossus. Contents : Muscles — styloglossus, stylopharyngeus. Ligaments — stylomaxillary (separating anterior from posterior part of triangle). Ar- teries — external carotid, posterior auricular, temporal, internal maxillary, mylohyoid branch of inferior dental, facial with submaxillary and submental branches, internal carotid. Veins — internal jugular, facial, submaxillary. Nerves — facial, pneumogastric, glossopharyngeal, mylohyoid branch of in- ferior dental. Other Structures— parotid gland, submaxillary gland, lymph- atic glands. Superior Carotid Triangle. — Boundaries : Superiorly — posterior belly of digastric. Inferiorly — anterior belly of omohyoid. Posteriorly — anterior border of sternomastoid. Coverings: integument; superficial fascia; pla- tysma; deep fascia; branches of facial nerve; branches of superficialis colli 150 OPERATIONS UPON THE LYMPHATIC GLANDS AND VESSELS. nerve. Floor: parts of thyrohyoid; hyoglossus; inferior constrictor of pharynx; middle constrictor of pharynx. Contents: Arteries — common carotid; internal carotid; external carotid; superior thyroid; lingual; facial; occipital; ascending pharyngeal. Veins — internal jugular; superior thyroid; lingual; facial; occipital (sometimes); ascending pharyngeal. Nerves — descendens hypoglossi; hypoglossal; pneumogastric; sympathetic; spinal accessory; superior laryngeal; external laryngeal. Other Structures — larynx; pharynx; lymphatic glands. Inferior Carotid Triangle. — Boundaries: Superiorly — anterior belly of omohyoid. Anteriorly — middle line of neck. Posteriorly — anterior margin of sternomastoid. Coverings: integument; superficial fascia; platysma; deep fascia; descending branch of superficialis colli nerve. Floor: scalenus anticus (superiorly and externally); longus colli (inferiorly and internally); rectus capitis anticus major (between and superiorly); vertebral artery and vein (between and inferiorly). Contents: Muscles — sternohyoid; sterno- thyroid. Arteries — common carotid (not strictly); inferior thyroid; vertebral. Veins — internal jugular. Nerves — pneumogastric; descending filaments from loop between descendens and communicans hypoglossi; recurrent laryngeal; sympathetic. Other Structures — larynx; trachea; thyroid gland; lymphatic glands. Posterior Triangle. — Boundaries : Anteriorly — posterior border of sternomastoid. Posteriorly — anterior border of trapezius. Superiorly — ■ occiput (apex). Inferiorly — superior border of clavicle (base). This triangle is subdivided into the occipital and subclavian triangles. Occipital Triangle. — Boundaries: Anteriorly — posterior border of sternomastoid. Posteriorly — anterior border of trapezius. Inferiorly — posterior belly of omohyoid. Coverings: integument; superficial fascia; platysma; deep fascia. Floor: splenius capitis; levator anguli scapulas; middle scalenus; posterior scalenus. Contents : Arteries — transversalis colli. Veins — transversalis colli. Nerves — spinal accessory; descending branches of cervical plexus. Other Structures — lymphatic glands. Subclavian Triangle. — Boundaries: — Posteriorly — posterior belly of omohyoid. Inferiorly — upper border of clavicle. Anteriorly — posterior border of sternomastoid (base). Coverings : — integument; superficial fascia; platysma; deep fascia; descending branches of cervical plexus. Floor :— first rib, first serration of serratus magnus. Contents : — Arteries — subclavian (third part); suprascapular; transversalis colli. Veins — subclavian (some- times); suprascapular; transversalis colli; external jugular; small vein from cephalic to external jugular. Nerves — brachial plexus, small nerve to sub- clavius. Other Structures — lymphatic glands. Lymphatic Glands of Head and Neck. — Consist of superficial and deep glands. (A) Superficial glands of head and neck : — Consist of transverse and vertical sets. (1) Transverse set of superficial glands: — Extend transversely from occiput along mastoid process, zygoma, and lower border of jaw, to symphysis menti, and comprise following groups; — (a) Oc- cipital or Suboccipital — below superior curved line of occipital bone, between skin and insertion of complexus muscle, (b) Posterior Auricular, or Sterno- mastoid — behind ear, between skin and insertion of sternomastoid. (c) Parotid — in front of ear, between skin and parotid gland, some being embedded within parotid gland, (d) Buccal — on surface of buccinator, between it and skin, (e) Submaxillary — in digastric triangle, between skin and mylo- hyoid and hyoglossus. (f) Suprahyoid — in middle line, between anterior bellies of digastric, between skin and mylohyoid. (2) Vertical set of super- REMOVAL OF LYMPHATIC GLANDS OF NECK. 151 ficial glands (superficial cervical chain) : — (a) Anterior — in front of neck, between hyoid bone and sternum, and between skin and superficial muscles. (b) Middle (superficial cervical chain) — chiefly along external jugular vein, mainly in posterior triangle of neck, between platysma and deep cervical fascia, (c) Posterior — over trapezius, between it and skin. (B) Deep glands of head and neck : — Comprising those of head and neck. (1) Those of head : — Consisting of following groups: — (a) Lingual — on external surface of hvoglossus and geniohyoglossus. (b) Internal Maxillary — on lateral aspect of pharynx, behind buccinator muscle, (c) Posterior Pharyngeal — between posterior surface of pharynx and rectus capitis anticus major, near base of skull. (2) Those of neck : — Consisting of following sets; — (a) Superior set — along internal jugular vein, from base of skull to level of thyroid cartilage, (b) Inferior set — along internal jugular vein, from thyroid cartilage to near clavicle. REMOVAL OF LYMPHATIC GLANDS OF NECK. General Considerations. — In the case of diseased cervical glands, an operation may be undertaken — (1) for the removal of one or a few defined glands, in one or more of the regions of the neck, in which case a single or several incisions, more or less limited, are so placed as most readily and safely to expose the involved glands; — or (2) for the removal of glands widely, deeply, and indistinctly disseminated throughout the antero-lateral aspect of the neck, in which case one or more extensive incisions are necessary, both for the removal of the glands and in order to give room in which to safeguard important structures during their removal. Removal of dis- seminated cervical glands will be first described — and removal of isolated glands will be referred to under Comment. Indications for Removal of Cervical Lymphatic Glands. — Chronic tubercular adenitis (most frequently) ; acute non-tubercular suppurative adenitis; enlargement secondarily from neighboring malignant growths. Preparation. — Shaving of all hairy parts at site of and bordering upon field of operation. Position. — Patient supine; shoulders raised; neck resting over a support, to render it prominent; head so turned as to increase prominence, length, and width of neck, and in order to drag glands out from under protecting tissues. Surgeon on side of operation; assistant opposite. Landmarks. — The triangles of the neck. Instruments. — Scalpels; scissors, straight, curved, blunt and sharp; dissecting forceps; toothed forceps; artery-clamp forceps; blunt dissector; retractors; tenacula; grooved director; aneurism-needle; needles; needle- holder; sutures; ligatures; sterilized water on hand to flood neck in case of opening large vein in an inaccessible localitv. Incision. — Various forms of incision have been used, singly or combined. Where the entire antero-lateral aspect of the neck is to be exposed, a X-shaped incision (Fig. 101) may be used — BC extending from over the mastoid process to the interval between the sternal and clavicular attachment of the sterno- mastoid, passing down the middle of the sternomastoid or along its anterior border — BA extending transversely forward from the upper end of the oblique incision to the angle of the jaw, and thence along the lower border of the jaw to the symphysis — CD extending transversely outward along the upper border of the clavicle, as far toward the acromioclavicular articulation as necessarv. If only the anterior triangle of the neck be involved, the por- 152 OPERATIOXS UPON THE LYMPHATIC GLANDS AND VESSELS. tion ABC of the incision is alone used — if the posterior triangle, the portion BCD. Operation. — (i) Incise directly through skin, superficial fascia, platysma, and deep fascia — the diagonal portion of the X-shaped incision being first made; that is, the portion over the anterior border of the sternomastoid. Sever the external jugular vein between two ligatures. Branches of the superficialis colli nerve will be cut, but the auricularis magnus and occipitalis minor should be retracted backward, if exposed. This incision is carried down to and exposes the whole length of the sternomastoid muscle. (2) Carry the upper incision transverselv downward to the angle of the jaw, N, Fig. 1 01. —Incisions for Exposing Lymphatic Glands of Cervical Rf.c.ion :—BC, Line over anterior border of sternomastoid, from mastoid process to interval between sternal and clavicular origins of sternomastoid ; BA, Line from mastoid process to angle of jaw, and thence forward along its lower border; CD, Line from sternoclavicular articulation outward along upper border of clavicle. Anterior triangle of neck is exposed by raising flap ABC; Posterior triangle, by raising flap BCD ; Entire antero-lateral aspect of neck, by raising both flaps. Following incisions may be used for removing isolated groups of glands ; EF, Incision parallel with anterior border of sternomastoid ; GH, parallel with posterior border ; IJ, Transverse oblique in upper part of neck ; KL, Transverse oblique in lower part of neck. and then forward along the lower border of the inferior maxilla toward the symphysis, passing through the skin, superficial fascia, platysma, and deep fascia — and exposing, without injury, the parotid gland, facial nerve, tribu- taries of temporomaxillary vein, facial artery and vein, submaxillary and submental glands. The facial artery and vein may be divided between two ligatures, if necessary. (3) The lower incision is now carried transversely along the upper border of the clavicle, as far toward its outer end as necessary — passing through skin, superficial fascia, platysma, and deep fascia — dividing some of the descending superficial branches of the cervical plexus and a few minor vessels. (4) Having now completed these three incisions, REMOVAL OF LYMPHATIC GLANDS OF NECK. 153 two triangular flaps are carefully dissected up and turned aside — an anterior flap (ABC), having the same boundaries as the anterior triangle of the neck, is turned forward, hinging on the anterior median line of the neck — and a posterior flap (BCD), having the same boundaries as the posterior triangle of the neck, is turned backward, hinging on the anterior margin of the tra- pezius (or on a line posterior to that, if the lower transverse incision have been extended posteriorly to the acromioclavicular articulation). Thus, the superficial parts having been turned aside, the entire antero-lateral quadri- lateral surface of the neck is exposed on a plane with the important structures and in easy access to those structures. (5) All glands are now dissected out, together with their surrounding connective tissue — being sought in the locali- ties indicated in the above summary (see Lymphatic Glands of Head and Neck, page 150) — guarding, at the same time, the important anatomical structures enumerated under Surgical Anatomy of the Triangles of the Xeck. (6) If avoidable, the sternomastoid should not be cut — it generallv being possible, in such a free exposure, to retract it alternately well forward and backward in order to remove the glands partly or entirely covered In - it, slightly flexing the chin on the sternum to lessen tension. Where, however, it proves a barrier to thorough and safe work, it should be unhesitatingly severed — the emergence of the spinal accessory nerve from its posterior border being exposed, and the muscle divided transversely below the nerve The upper end of the muscle is then turned upward and backward with the uninjured nerve, and the lower end downward and forward — and the important structures beneath it thus easily brought to view. (7) In com- pleting the operation, the cut ends of the sternomastoid should be carefully sutured with interrupted buried catgut sutures. The flaps are now turned back into place and sutured throughout — the flaps being sutured to each other first, then along the superior transverse line, and, last, along the inferior transverse line — the wound being closed throughout with silkworm-gut or silk — and firm pressure, to occlude dead spaces, made in the dressing. The neck and head are steadied in some form of retentive apparatus until union has occurred. Removal of Isolated Lymphatic Glands of the Neck. — These isolated glands will belong to one of the groups of superficial or deep glands given, with their relations, upon a preceding page. The position, direction, and extent of the incision for their exposure will be determined by the special group of glands involved and the extent of the involvement — the general rule being that the incision is so placed as to reach the site most readily and with greatest safety to neighboring structures — and mav be a single vertical, transverse, or oblique straight incision, making an opening whose lips have to be retracted to expose the parts; — or a combination of these; — or a curved incision, thereby forming a flap, which is temporarily turned back. The two most generally used forms of incision, however, are those which are more or less parallel with one of the borders of the sternomastoid (Fig. 101, EF or GH) — or more or less parallel with the natural obliquely transverse crease crossing the neck about on a level with the hyoid bone, in the cleavage line of the skin (Fig. 101, IJ or KL). The incision may be placed over the submaxillary, superior carotid, or inferior carotid triangle, of the anterior triangle of the neck, or over the occipital or subclavian triangle, of the posterior triangle — or over the posterior aspect of the neck, between the anterior border of the trapezius and the posterior median line, and between the superior border of the scapula — or may involve several triangles. Comment. — (i) Great care is necessary in removing glands from thin- 154 OPERATIONS UPON THE LYMPHATIC GLANDS AND VESSELS. walled veins. Should a vein be wounded, the opening should be caught up instantly and laterally ligated, if the wound be appropriate, or sutured, or even transversely ligated. If so situated that closure cannot be immediately made, the part should be flooded with water, so that water stands over the open vein, to prevent the drawing-in of air until the vein can be secured. (2) The important nerves are to be particularly guarded. (3) The arteries and arterial hemorrhage give far less concern than the veins and venous hemorrhage. (4) It is better to dissect the glands out in masses or chains, together with their adherent connective tissue — invisible, impalpable glands being thus more thoroughly removed. (5) Glands should be removed with their capsules intact. (6) The sternohyoid and omohyoid may also be divided and subsequently sutured. (7) All bleeding should be immediately con- trolled as encountered, and ligated as soon as convenient. SURGICAL ANATOMY OF AXILLARY REGION. Description. — The axilla is a pyramidal space between the upper lateral wall of thorax and inner wall of arm — its apex corresponding with interval between first rib on inner side, clavicle in front, and upper edge of scapula behind; — its base, broad at chest and narrow at arm, is composed of skin and dense fascia, extending between inferior border of pectoralis major in front, and inferior border of latissimus dorsi behind. Boundaries. — Anteriorly — pectoralis major (throughout) ; pectoralis minor (its center). Posteriorly — subscapulars (above); teres major and latissimus dorsi (below). Internally — first to fourth ribs; first to third intercostal muscles; serratus magnus. Externally — humerus; coracobrachi- al ; biceps. Contents. — Arteries : — axillary (along external wall, nearer anterior than posterior boundary); superior thoracic; acromial thoracic; long thoracic; alar thoracic; subscapular; anterior circumflex; posterior circumflex. Veins : — axillary (to inner side of axillary artery) ; receiving venae comites of brachial artery and tributaries of branches of axillary artery. Nerves: — brachial plexus lies to outer side of first part of axillary artery; — the second part of axillary artery has the outer, inner, and posterior cords of plexus in the rela- tions expressed by their names; — the third part of the artery has, anteriorly, inner head of median nerve; posteriorly, musculospiral and circumflex; externally, median, musculo-cutaneous; internally, ulnar, internal cutaneous, lesser internal cutaneous. Posterior thoracic (on serratus magnus). In- tercosto-humeral. External and internal anterior thoracic, crossing in front and behind axillary artery respectively. Glands : — see below. Axillary Lymphatic Glands.— Are arranged in four groups: (a) Axillary glands proper — median set; three or four in number; along axillary artery and vein, (b) Pectoral glands; inner or anterior set; four or five in number; along long thoracic artery, below great pectoral muscles and on serratus magnus. (c) Subscapular glands — external or posterior set; two in number; along subscapular artery, under latissimus dorsi. (d) Subclavian or infra- clavicular — superior set; two in number; near cephalic vein; just below clavicle in fossa under pectoralis major and deltoid, upon costocoracoid membrane. Axillary Lymphatic Trunk. — Efferent trunk from above sets of glands — runs upward along subclavian vein — emptying into thoracic duct on left, and into right lymphatic duct on right. REMOVAL OF AXILLARY LYMPHATIC GLANDS. 155 REMOVAL OF AXILLARY LYMPHATIC GLANDS. Description. — The removal of the axillary glands is done, in the majority of cases, in connection with the removal of neighboring malignant growths, especially those involving the breast — and, in such cases, the incision for exposing the axillary region is merely a prolongation into the axilla of the incision for the original operation. The steps, therefore, of the operation for the removal of these glands will be found sufficiently described under the operations for the radical removal of the breast (pages 738 to 744). Where it is planned to remove enlarged ax- illary glands alone and as a distinct operation, the incision is placed over the involved glands (Fig. 102). SURGICAL ANATOMY OF SCARPA'S TRIANGLE. Description. — A triangular area just below fold of groin. Boundaries. — Base (above) ; Poupart's ligament. Externally; sartorius. Internally; adductor longus. Apex (below) ; junction of sartorius and adductor longus. Roof. — Skin; superficial fascia; fascia lata. Floor. — (From without in- ward.) Iliacus; psoas; pectineus; adductor brevis; adductor longus. Contents. — Arteries; common femoral (from middle of base to apex); superior epigastric; superfi- cial circumflex iliac; superficial ex- ternal pudic; deep external pudic; profunda femoris. Veins; femoral (to inner side of artery) ; profunda femoris; tributaries of branches of femoral; internal saphenous. Fig. io 2 .-Incision for Exposing Axillary Nerves; anterior crural (to outer Lymphatic Glands:— Passing between biceps Side of arterv) ; crural branch of and pectoral muscles, in front, and the scapular , ' ' . muscles, posteriorly; to which may be added one gemtocrural; external cutaneous. or more modifying incisions, as necessitated by Lymphatics; superficial and deep the special case, glands. Inguinal Lymphatic Glands. — Consist of two following sets; (1) Super- ficial Glands ; Oblique or Inguinal Set — along Poupart's ligament, upon fascia lata. Vertical or Saphenous Set — around saphenous opening and upon fascia lata. (2) Deep Glands ; along upper part of femoral vessels, one or more being within femoral canal. 156 OPERATIONS UPON THE LYMPHATIC GLANDS AND VESSELS. REMOVAL OF INGUINAL LYMPHATIC GLANDS. Description. — The operation will differ according to site and amount of glandular involvement — and the lines of incision are given accordingly. Indications. — Glands enlarged or broken down as a result of venereal disease; tubercular glands; simple, chronic, and suppurative adenitis; malig- nant involvement. Preparation. — Groin shaved. Position. — As for ligation of femoral artery at base of Scarpa's triangle (page 95). Landmarks. — Given under Sur- gical Anatomy of Scarpa's Triangle. Instruments. — As for removal of cervical glands (page 151). Incisions.— (1) Where the ob- lique (superficial) set of glands are involved — an incision may be made parallel with and just below Pou- part's ligament, with its center over the enlarged glands (Fig. 103, B); or just above Poupart's ligament (Fig. 103, A). (2) Where the vertical (superficial and deep) sets are involved — the incision is made along the course of the femoral artery, with its center over the enlarged glands (Fig. 103, B). (See ligation of common femoral at base of Scarpa's triangle, page 93.) (3) Where all three sets are involved — the incision may be a combination of the above two, being somewhat T->haped. Operation. — Divide skin and superficial fascia in the direction or directions indicated above. The superficial vessels encountered are ligated. The superficial glands (oblique and vertical sets) will be found upon the fascia lata, in the positions indicated. To reach the deep glands (lying along the great vessels) the fascia lata is incised in the line of the femoral artery (as for ligation of that artery). Important structures are to be avoided and the glands sought along the course of the artery and vein. The general principles mentioned under the removal of cervical lymphatic glands are applicable here — and elsewhere, wherever glandular tissue is removed. Fig. 103. — Incisions for Exposing Inguinal Lymphatic Glands: — A, Oblique incisions just below and parallel with Pou- part's ligament, for oblique superficial set of glands; B, Vertical incision over femoral artery, for vertical superficial and deep sets. A T-shaped incision may be made by uniting these, where all three sets are involved. CHAPTER IV. OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. Note. — The operations which may be performed upon Nerves, Plexuses, and Ganglia will be first described — and then the operations for the exposure of the more important nerves, plexuses, and ganglia will be given. Having exposed a nerve, any of the operations about to be described may be applied to it, as indicated. NEUROTOMY. Description. — Section of a nerve. Neurotomy may be transverse (e. g., as when performed for neuralgia of a sensory nerve, or spasm of a motor nerve) ;— or longitudinal (e.g., as done in some cases of neurorrhaphy and neuroplasty). Indications. — Neuralgia of sensory nerves; spasm of motor nerves; preliminary to neurorrhaphy or neuroplasty. Preparation — Position — Landmarks — Surgical Anatomy — Incision. — Determined by the special nerve involved. Fig. 104. — Neurotomy of Supraorbital Nerve. Operation. — Having exposed and isolated the individual nerve, it is lifted from its bed by forceps and divided with a scalpel or scissors. The cut ends are allowed to fall back into place — or, better, should be so dropped back into the wound as to make re-union unlikely. The wound is closed as usual. No special after-treatment is carried out (Fig. 104). Comment. — Chiefly applicable to smaller sensory nerves — and, rarely, smaller motor nerves. Not generally successful in neuralgias. i57 158 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. NEURECTOMY. Description. — Excision of a nerve. Neurectomy may be partial or com- plete. As ordinarily performed, only a small part of the length of the nerve is removed. Preparation— Position — Landmarks — Surgical Anatomy— Incision. — Determined by the special nerve. Indications. — Neuralgia of sensory nerves; spasm of motor nerves. Fig. 105. — Neurectomy of Supraorbital Nerve. Operation. — The nerve having been exposed and brought well into the field, is lifted out of its bed with forceps — and from 2 to 3 cm. (1 to 1^ inches) of its trunk is excised with scalpel (preferable to scissors, which partly crush). The ends are then allowed to drop back into position — and the wound is closed (Fig. 105). Comment. — Total excision is most frequently done by avulsion (page 159). NEURECTASY. Description. — Nerve-stretching. Indications. — Neuralgia of sensory and spasm of motor nerves. Preparation — Position — Landmarks — Surgical Anatomy — Incision. - — Determined by the nerve operated upon. Operation. — The nerve is freely exposed and separated by blunt dis- section sufficiently for manipulation. Small nerves are stretched by means of a nerve-hook inserted beneath them. Large nerves are stretched by being grasped between thumb and finger — the nerve is steadily and evenly pulled from its center for about five minutes — then from its periphery for about five minutes. The extremes of force employed may be represented by a pull of a half-pound for the supraorbital — and from thirty to sixty pounds (according to the judgment of the operator) for the sciatic. The manipu- lation is done with as limited disturbance to the surrounding structures as possible. After the stretching, the nerve is dropped back into place and the incision closed. In the after-treatment, the part should be immobilized until union of the wound occurs. Temporary paralyses of motion and sensation NERVE-AVULSION. J 59 are to be expected (Fig. 106). The breaking strain of the principal nerves of the body has been given by Nombetta as the following: — Great sciatic 183 pounds Internal popliteal 114 Anterior crural 83 Median crural 83 Ulnar and radial 59 Brachial plexus in the neck 48-63 Brachial plexus in the axilla 35~8i Fig. 106. — Neurectasy of Infraorbital Nerve. Comment. — Sensory nerves seem more dulled by traction in a direction away from the cord — motor nerves more dulled by traction toward the cord. • Fig. 107.— Nerve-avulsion of Infraorbital. NERVE-AVULSION. Description. — The tearing away of a nerve from its central and peripheral connections. Indications. — Neuralgia. Chiefly used upon branches of the fifth nerve. Preparation— Position— Landmarks— Surgical Anatomy— Incision. — Determined by the special nerve. 160 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. Operation. — Having exposed the nerve involved, it is grasped by catch- forceps (firmly, but not strong enough to crush and break it) — and then slowly wound around the forceps (by twisting the latter between the fingers) — until the nerve is torn away from its connections, both proximally and distallv. Branches of the nerve are also sometimes avulsed, to a greater or less extent along with the main trunk — as well as a part or the whole of a ganglion. The nerve may, also, be partly cut — either distallv (generally) or peripherally. The wound is closed throughout, in the usual manner (Fig. 107). NEURORRHAPHY. Description. — Suturing of nerve which has been partially or entirely divided. Neurorrhaphy may be primary, or immediate, where the nerve is sutured at once, — or secondary, where the suturing is done subsequent to repair of injury. Indications. — Repair of injury to nerve. Neuroplasty. Preparation — Position — Landmarks — Surgical Anatomy — Incision. — Determined by the nerve involved. Operation of Primary, or Immediate, Neurorrhaphy. — The severed nerve-ends are exposed in the wound and brought well within reach. See if they be cleanly cut. If not, gently grasp them with forceps and cut them cleanlv, and preferably transversely, with a sharp knife, with a minimum sacrifice of nerve-tissue. The ends are brought and held in apposition, in their normal relations, anterior aspect to anterior aspect, and the like. If Figs. 108-112. — Methods of Nerve-suturing: — I. — A B, C, Sutures passing through entire thickness of nerve and sheath; D, E, Sutures passing through nerve-sheath only. the ends cannot be approximated, flex or extend the limb to increase the length, or stretch both ends gently (preferably grasping them with the fingers). It is desirable that there should be no tension upon the sutures. The junction is made with a fine cambric needle threaded with fine chromic catgut and held in a needle-holder. One of several methods of suturing may be adopted; — (a) The sutures may be passed entirely through the sheath and nerve, in two or more directions, and about 3 mm. (i inch) from the ends. The needle passes from before backward through the entire thickness of the proximal end — then similarly through the distal end, from behind forward— NEURORRHAPHY. 161 and the suture is tied lightly, so as not to have tension. A second suture may be applied antero-posteriorly, or laterally — and as many as seem needed accurately to coapt the ends. This is the most general method of nerve- suturing (Figs. 108-112, A, B, C). (b) Sutures may be passed through the Figs. 113-117. — Methods or Nerve-suturing: — II. — A, B, Sutures passing through sheath and part of nerve; C, Sutures through sheath, reinforced by relaxation-suture through entire nerve; D, Nerve cut obliquely and united by suture through sheath and part of nerve; E, Same with relaxation-suture. nerve-sheath alone, encircling the nerve proper. This is the preferable operation — but is possible only in. large nerves (Figs, in, 112, D, E). (c) Part of the sutures may pass through the nerve and sheath (as in a) — and part through the sheath only (as in b) (Figs. 113, 114, 115, A, B, C). (d) Figs. 118-121. — Methods of Nerve-suturixg : — III. — A, Reinforcing through-and- through suture by lateral suture through loops of first suture; B, C, D, Various methods of union by approximation of lateral aspects of nerve, after freshening. After paring the larger end, it may be split down its center for about 1.3 cm. {\ inch) — the smaller end may be beveled on two sides and sutured between the lips of the split end (Fig." 122, A), (e) One end may be beveled on its upper surface, the other on its lower surface — the two freshened surfaces are then placed in contact and sutured through and through (Figs. 116 and 162 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. 117, D, E). This requires a greater length of nerve than some of the other methods. Other methods are shown in Figs. 118 to 121 and 123, B, and 124, C. Having completed the union of the nerve-ends, the wound is sutured and the limb immobilized so as to minimize tension for about ten days — the part is then gently massaged daily and the splint reapplied between times and not removed for about six weeks. Primary union is particularly to be sought. The restraining splint should be such as will hold the part so that the nerve will be relaxed. Operation of Secondary Neurorrhaphy. — Having applied Esmarch's bandage, one may cut directly down upon the supposed site of the nerve ends. It is better, however, deliberately to incise for and expose both proximal and distal nerve-trunks, above and below the involvement, on anatomical grounds. Much difficulty may be experienced in finding the nerve-ends, unless traced down and upward, as the case may be, from the nerve-trunks. The proximal end is easier to find, and apt to be bulbous and sensitive. The distal end is apt to be atrophied. Sufficient freeing of the nerve-ends to enable them to meet is necessary. While in primary suturing the severed ends may or may not require trimming before suturing, in secondary suturing they are, in ad- dition to being freed from connective tissue, always to be excised. Having identified the nerve-ends, dissect away all intervening fibrous tissue. With a sharp knife cut away trans- versely the proximal end until healthy nerve tissue is reached. In the case of the distal end, simply cut away enough of the upper end to afford good ap- proximation (for degen- erative processes will have extended far down this end under any cir- cumstances). If the ends can now be made to meet without too much ten- sion, they are sutured together by one of the methods described under primary neurorrhaphy. If greater length be necessary, as is almost invariably the case, it may generally be gotten by first carefully stretching the ends — after which they are united by suture. If sufficient length cannot be thus secured, neuroplasty must be done (page 163). Following secondary neurorrhaphy the wound is closed, the limb splinted, and the same after-treatment carried on as after the primary operation — although results are not to be expected so soon. Restoration of function may require from one to two years. Comment. — Where stretching is resorted to to gain length in secondary suturing, it should be applied before excising the nerve-ends — traction being made upon the nerve-ends themselves, which are afterward removed. And if tension be too great upon the sutured ends, relaxation-sutures may be applied above and below the line of finer approximation sutures. «f Figs. 122-124. — Less Usual Methods of Nerve- suturing: — IV. — A, Suturing of beveled end between lips of split end; B, C, Method of uniting sound upper and lower portions of nerve by splitting and suturing contracted portion. NEUROPLASTY. 163 NEUROPLASTY. Description. — The union of severed nerve-ends by processes of plastic elongation of the nerve itself, — or by the interposition of nerve or other Figs. 125-128. — Neuroplasty : — I. — A, B, Union by splitting both ends of nerve and uniting split ends end-to-end; C, D, Same, with split ends united laterally. material — in cases where the loss of nerve-substance is so great that the severed ends cannot be brought and held together by the ordinary methods Figs. 129-132. — Neuroplasty: — II. — A, Splitting one end, with union of lateral aspect of split end to lateral aspect of opposite entire end freshened laterally; B, Same, with union end-to-end; C, D, Same as in B, in case of bulbous ends. 164 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. — Neitroplasty: — III. — A, B, Doubly splitting both ends, with union of split ends end-to-end; C, Interpolation of section of nerve. of suturing. The object sought in the latter cases is the supplying of a sub- stance between the cut ends along which the nerve-fibers may grow from the proximal to the distal end (as the tendrils of a vine grow along a trellis). The operations of nerve-anastomosis, nerve- grafting, and nerve-implanta- tion are also instances of neuro- plasty. Indications.— Where, in primary operations, consider- able nerve-substance has been destroyed by the cause of the injury — or, in secondary oper- ations, the retraction of the severed ends has been very great — so that by no other means can the ends of the nerves be brought and kept together. Preparation — Position — Landmarks — Surgical Anat- omy — Incision. — Determined by the special operation. Operation. — Having exposed and isolated the severed ends, and, in the case of secondary operations, freed them from connective tissue and freshened them by partial excision, one of the following means of bringing and holding the ends in contact is resorted to: — (a) At points as far from the ends of the nerves as indicated by the length of the intervening space to be filled, divide each nerve half-way, trans- versely — split each end back to within about 6 mm. (| inch) of its end — bend the two cut portions toward each other — and suture them end to end, or laterally (Figs. 125-128, A, B, C, D). In filling smaller gaps, one trunk only may be split — bent back to the other end — and both freshened and sutured (Figs. 129 and 130, A, B). (b) Sec- tions of nerves from a freshly amputated human limb, or from the lower animals, may be interposed in the gap and sutured at both ends by one of the methods given under neurorrhaphy. This interposed part does not grow, but only serves the role of a trellis (Fig. 135, C). (c) A solid cylinder of decalcified bone may be interposed and sutured to the ends of the nerves, (d) Strands of fine catgut may be made to bridge the interval, as a guide to the new nerve-fibers (Fig. 136, A). C2E^ ) Figs. 136-138. — Neuroplasty : — IV. — A, Union by strands of gut alone; B, C, Same, reinforced with decalcified bone cylinder. NERVE-ANASTOMOSIS; NERVE-GRAFTING; NERVE-IMPLANTATION. 165 (e) The proximal and distal ends of the nerve may be enclosed in a hollow cylinder of decalcified bone (Figs. 137 and 138, B, C). (f) Proceed as in Fig. 133, A — then shift the cut ends laterally, and approximate as shown in Fig. 134, B. (g) Combine methods (d) and (e) — the combined method of bridging with catgut and enclosure in decalcified bone tube. One end of the catgut bridge is slipped through the tube, sutured to the other end, and drawn back within the tube (Figs. 136 and 138, B, C). (h) Shortening of the limb, by resection of its bone or bones, to allow of approximation of the ends of the nerve. (The musculospiral has been thus successfully treated.) Of the above methods, method (a) is the one most generally used. Having completed the neuroplastic operation, the wound is closed and the part immo- bilized in a position to relax the nerve. NERVE- ANASTOMOSIS; NERVE-GRAFTING; NERVE-IMPLANTATION. Description. — The grafting of any portion of an injured nerve into the trunk of a neighboring nerve. In the case of a divided and retracted nerve, the severed upper end is grafted into the intact nerve at a point opposite its level, <3S23| D Figs. 139-142. — Nerve-grafting: — I. — A, B, Engrafting of freshened lower end of divided median nerve (for instance) upon intact ulnar nerve; C, D, Engrafting of freshened upper and lower ends of divided median nerve upon intact ulnar nerve. above — and the severed lower end grafted into the intact trunk opposite its level, below — that is, at points where they can be conveniently brought into contact with the sound nerve. The object sought is to switch the interrupted nerve-stream, or nerve-impulse, from the proximal end of the cut nerve into the neighboring sound nerve — thence to have it conveyed along this used nerve down to the point where the distal end of the cut nerve is sutured to the utilized nerve — and thence returned to the original nerve and transmitted along the distal portion of the cut nerve to its final distribution, as though no interruption to its normal course and transmission had occurred. An illus- tration would be a divided median nerve and an intact ulnar nerve — where the upper end of the median nerve is sutured to the upper part of the ulnar — 166 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. and the lower end of the median to the lower part of the ulnar (Figs. 141 and 142, C, D). The object finally sought is to have nerve-fibrils grow down this nerve from the proximal cut end to the distal cut end. The method is of limited application, because of the necessity of finding large nerves in close proximity — the upper extremity being about the only locality in which the method can be utilized (Figs. 143 and 144), or the lower end only may be grafted upon the sound nerve — the impulse from the latter passing into the impaired nerve and going on to its distribution (Fig. 143, A and B). Preparation— Position — Landmarks — Surgical Anatomy — Incision. — Determined by the individual operation. Operation. — Expose, isolate, and excise the proximal and distal ends of the severed nerve, supposing it to be a secondary case. Also through Figs. 143 and 144. — Nerve-grafting: — II. — A (to left), Showing ulnar and median nerves divided at different heights; B (to right), Union of upper end of median to lower end of ulnar; — followed by engrafting of upper end of ulnar and lower end of median into this new trunk. the original incision, expose the neighboring nerve upon which the grafting or implantation is to be made. By means of curved scissors, remove a limited portion of its sheath, on the lateral aspect of the nerve, at the sites where the upper and lower severed nerve-ends are to be grafted. The obliquely NERVE- ANASTOMOSIS; NERVE-GRAFTING; NERVE-IMPLANTATION. 167 or transversely divided ends of the involved nerve are to be sutured to the denuded lateral aspect of the intact nerve, above and below, by fine chromic B C D Figs. 145, 146, 147, and 148. — Nerve-graftixg: — III. — A, The darker, smaller nerve has lost all function, — B, Is divided transversely and its distal end sutured into the sound nerve. G, The darker nerve has lost all function, — D, Is divided and sutured to the split portion of the sound nerve. sutures passing through the sheath of the nerve-ends, on the one hand, and through the sheath and part of the thickness of the intact nerve at the Figs. 149, 150, 151, and 152. — Nerve-graftixg: — IV. — E, The darker, smaller nerve has retained part of its function, — F, Is split and its split end sutured to the split end of the sound nerve. G, The darker nerve has retained part of its function, — H, Is divided transversely, and its proximal end sutured to the distal split portion of the sound nerve, while its distal end is sutured to the proximal split portion of the sound nerve. bared sites, on the other hand. Having completed the nerve-suturing, if the neighboring parts have been disarranged, these should be rearranged — by buried catgut sutures, if necessary. The wound is then closed throughout. 168 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. The part should be immobilized in a position of relaxation of nerve-tension until union has occurred — and subsequently treated as described under neurorrhaphy. It sometimes happens that an adjacent nerve has, through degenerative changes, sustained a total or partial loss of function. Where the loss is complete (Fig. 145, A), the involved nerve is divided transversely and its distal end sutured laterally to the adjacent sound nerve (Fig. 146, B); — or the distal end may be sutured end-to-end to split portion of the sound nerve (Figs. 147 and 148, C and D). Where the loss of function in the involved nerve is not complete, a cross-anastomosis may be done, thus preserving all of each nerve, — that is, both nerves may be split, and the split portions sutured, leaving the main trunks continuous (Figs. 149 and 150, E and F); — or the involved nerve may be divided transversely and the sound nerve split longi- tudinally in both directions, after which the proximal end of the impaired nerve is sutured to the distal split portion of the sound nerve, and the distal end of the impaired nerve is sutured to the proximal split portion of the sound nerve (Figs. 151 and 152, G and H). Comment. — (i) The severed distal end of the involved nerve is sometimes bevelled and implanted within the incised substance of the sound nerve (Fig. 153). It may happen, in extensive injuries, that the lower portion of one nerve is destroyed, and -the upper end, or ends, of one or two adjacent Fig. 153. — Implantation of Bevelled End of Divided Nerve into Longitudinal Slit in Sound Nerve. Fig. 154. — Anastomosis of Divided Distal Ends of Two Nerves whose Proximal Portions have been Destroyed, into Proximal Trunk of Adjacent Nerve whose Distal Portion has been Destroyed. nerves. In such unusual cases, and in the rare localities where such a pro- cedure is possible, the divided distal ends of the latter may be sutured into the transversely divided proximal end of the former (Fig. 154). (2) It seems to make no difference whether a sensory nerve be grafted to a motor or to a mixed nerve— or vice versa. INTRANEURAL INFILTRATION FOR REGIONAL ANESTHESIA. 169 NEUROLYSIS, OR AN OPERATION FOR RELIEF OF NERVE COM- PRESSED BY BONY OR FIBROUS CICATRICIAL TISSUE OR BY ADHESIONS. Description. — Nerves are sometimes involved and pressed upon in the processes of repair following injury of bones and soft parts, or in the processes of disease, or by adhesions, and eventually become so firmly compressed as to have their function impaired — in which case an operation to free them for pressure is indicated. Position — Landmarks — Incision. — Dependent upon nerve involved. Operation. — The steps of the operation will be determined by the position and nature of the compression. Where fibrous cicatricial tissue surrounds the nerve, the mass is to be exposed by dissection — the nerve is to be isolated either above or below the mass and is to be followed through it and dissected out from it. The cause of compression, as far as possible, is to be removed, so as to avoid a recurrence. Where a bony callus surrounds the nerve, this is to be reached by the safest route through the muscular planes — the nerve being similarly isolated above and below the mass — and freed through it. It is often necessary to chisel away as much of the callus as imprisons the nerve — and in order to render a recurrence of compression unlikely. The wound is closed as usual. Cargile membrane has been used to prevent re-adhesion. Comment. — Nerves may be compressed by growing tumors — their relief being determined by the treatment adopted for the tumor, or nerves may be compressed by their thickened sheaths, which require longitudinal incision. INTRANEURAL INFILTRATION FOR REGIONAL ANESTHESIA. OPERATION OF MAT AS AND CRILE. Description. — -The injection of a sterilized anesthetic solution directly into a nerve-trunk. The injection may be made at the site of the proposed operation, or above the site. Indications. — To produce anesthesia in the region supplied by the nerve, for the purpose of major or minor operations. Especially indicated in those portions of the body in which nerve-trunks may be isolated, — and in those cases in which general anesthesia is contraindicated. Position — Landmarks— Incision. — Determined by the special operation. Nature of the Anesthetic Solutions. — These have been of various con- stitutions and percentages — there being no recognized standard solution universally employed in this comparatively new field of surgery. Sterilized solutions of cocain, of eucain B, of nirvanin, of Schleich's solution, and others, have been used. Almost any suitable syringe may be employed, though a special instrument is more appropriate. Matas (whose writing upon local anesthesia this article largely follows) uses from 5 to 40 min. (according to the size of the nerve) of Schleich's solution No. 1. (One tablet of Schleich No. 1 dissolved in 100 minims of water, represents -5^ part of cocain hydro- chlorid, 4 0V0 P art of morphin hydrochlorid, and -5-^-,- part of sodium chlorid.) Operation. — The anesthetic fluid may be injected at the site of operation or above it; — (a) Where the Injection is made into the Nerve-trunk above the site of Operation — the anesthesia being produced in the region supplied by the nerve: — (Suppose the injection be made into the sciatic nerve, .for amputation of the leg); To prepare the way for the incision, anesthetize the skin by intradermal infiltration — and the connective tissue by subdermal 170 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. (subcutaneous) infiltration — both with the Schleich solution. Expose the sciatic nerve above the bifurcation into internal and external popliteal and isolate it sufficiently for manipulation. Insert the needle of the syringe through the sheath of the nerve and into and among its fibers — and slowly inject the anesthetizing fluid (the amount determined by the nature of the solution and size of the nerve) until the entire extent of a transverse section of the nerve has been infiltrated or "blocked" (Fig. 155). If this single injection be considered sufficient to last throughout the operation, the wound may be at once closed — otherwise it is temporarily packed with gauze. The limb is elevated and exsanguinated by gravity. A circular constrictor is applied above the site at which the nerve was infiltrated. Within a few minutes of the infiltration, the distal regions supplied by the nerve will be Fig. 155. — Intraneural Infiltration for Regional Anesthesia: — The great sciatic nerve being here infiltrated. completely anesthetic, and any operation may be performed thereon, as long as the constrictor remains in situ, (b) Where Infiltration is made into Nerve-trunks as exposed in the course of an Operation: — Anesthetize the skin by intradermal infiltration, and the connective tissue by subdermal infiltration. As each nerve is exposed it is isolated, taken up, and infiltrated, as in the above method. Where the case is a limb, a circular constrictor is used as above. Where the region is such an one as is involved in the radical operation for inguinal hernia, no arrest of circulation is attempted. In this method the anesthesia is complete not only at the site infiltrated, but in the regions supplied by the infiltrated nerves — but lasts a shorter time, unless the infiltra- tion be repeated, than where a constrictor can be applied. Comment. — If the site of operation be supplied entirely by one nerve, that nerve alone need be infiltrated, at some convenient point proximal to the site of intended operation. If the site of operation, however, be supplied by PARANEURAL INFILTRATION FOR REGIONAL ANESTHESIA. 171 several nerves, each has to be separately infiltrated; — for example, in the operation of amputation of the leg described above, if the operation is to be above the level of the tuberosity of the tibia, the anterior crural nerve is to be also injected, — if below that level, the long saphenous nerve is to be injected instead of the anterior crural — the sciatic being, of course, infiltrated in both instances. The entire upper limb can be anesthetized by infiltrating the brachial plexus above the clavicle. PARANEURAL INFILTRATION FOR REGIONAL ANESTHESIA. MATAS' METHOD. Description. — The injection of a sterilized anesthetic solution into the tissues immediately surrounding a nerve-trunk, so planned as to envelop the nerve as closely as possible in an anesthetic atmosphere, as it were. Indications. — To produce anesthesia in the region of the infiltration and as far beyond as the solution is diffused. Position — Landmarks. — Determined by the special operation. Operation. — Without making any incision for the exposure of the nerve, the anesthetic solution is injected first intra dermally, to deaden the site super- ficiallv, and then into the tissues immediately in the neighborhood of the nerve', and as near to the nerve as possible. This infiltration of the tissues alongside of the nerve is done upon a knowledge of the anatomy of the nerve and its relation — and is meant to "envelop the nerve in an anesthetic atmos- phere." In the case of dealing with an extremity, a few minutes after the infiltration the part is elevated, exsanguinated by gravity, and a circular con- strictor applied above the region of infiltration — subsequently to which the parts below the infiltration will be anesthetized by the diffusion of the anesthetic solution (Fig. 158). In other localities no attempt to control the circulation is made. The anesthetic solutions and the special syringe for injection are mentioned under Intraneural Infiltration. Matas uses the Schleich's solution No. 1, calculating in this, as in other forms of regional anesthesia, not to leave more than 1 gr. of cocain in the tissues. To illustrate the paraneural method (copying from Matas' writing upon the subject) let the anesthetization of the finger, for the removal of a nail or the opening of a felon, be taken. "The skin at the root of the finger, on its dorsal aspect, is infiltrated over two spots on each side of the phalanx nearest the carpometacarpal joint, and on a level with the web of the hand. The needle is then thrust into each spot and directed toward the known situation of the digital nerves, which are deeply situated in the lateral aspect of the digits. From 10 to 15 minims of the anesthetizing solution are diffused in the region of each nerve, with the view of creating a cocain atmosphere around it. After a few minutes' delay to allow the capillary circulation to diffuse the fluid, the hand is exsanguinated by elevation, and an elastic constrictor is carried around the root of the finger below the seat of the infiltration. The finger will then become numb and dead to all painful impressions, and it will be possible to perform any operation upon the digit, at any point beyond the line of constriction." Comment. — This method is more applicable to smaller extremities and parts — while the intraneural method to the larger. The paraneural infiltration for regional anesthesia differs from local infiltration for regional anesthesia (which may be represented by the common use of cocain hypodermatically) in that in the latter no attempt is made to infiltrate along the anatomical course of the nerves, but the injection is made almost at random into the cutaneous and subcutaneous tissue. 172 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. MASSIVE INFILTRATION ANESTHESIA WITH WEAK ANALGESIC SOLUTIONS. MATAS' MODIFICATION" OF SCHLEICH'S METHOD. Description. — By infiltration anesthesia is meant ihe production of diminished or suppressed sensibility of a part by means of edematization of the tissues through the injection of weak analgesic solutions. The fluid (from one to thirty ounces) is thrown into the tissues without reference to the nerves of the part — the needle avoiding important structures. (The author, however, has seen a quantity of the solution thrown into the internal jugular vein, toward the heart, in operating upon the neck, without appreciable result.) The analgesia thus produced is accomplished partly, and chiefly, by the physical effect of the pressure exercised upon the conductivity of the sensory nerves by the infiltrated fluid, and partly by the paralyzation of the sensitive structures by the chemical action of the agents used. Several analgesic solutions are in use, and almost any syringe may be employed for their introduction. Matas, whose writings on this subject have been largely followed, uses a special form of instrument and a special solution. Fig. 156. — The Latest Model of Matas' Infiltrator :- thesia. -Used In massive infiltration anes- Apparatus. — The infiltrator devised by Matas (Fig. 156) ''consists of a glass receptacle with space for 7 oz. of fluid and 2 oz. of air. The fluid is introduced through the bottom (or the part which becomes the bottom when the apparatus is inverted and ready for use) which is closed by screw-cap over a rubber washer which makes an air-tight joint. The bottle is graduated, which enables the operator to see the amount of fluid that is being used during an operation. The top is provided with a T-tube, with two stop-cocks, one for the introduction of air, and the other for the egress of the fluid. A rubber bulb for compressing the air is attached to the bottle by means of rubber tubing and suitable connections (Fig. 156). Eight needles, straight and MASSIVE INFILTRATION ANESTHESIA. 173 curved, are provided with the outfit, varying in size from a fine hypodermic needle to a large aspirating needle. The needles are connected to reservoir by rubber tubing of sufficient length to give the operator freedom of movement iii handling the needle. After the sterilized solution has been placed in the receptacle this is charged with air until marked resistance is felt in compressing the bulb, when the bulb and its tubing are detached from their special stop-cock. The apparatus is now ready for infiltration. The chief advantages of this apparatus over the ordinary syringes used for infiltration anesthesia are: — (a ) That it allows the operator to infiltrate and edematize large areas rapidly, continuously, or interruptedly without the delay caused by recharging or exchanging svringes; — (b) That by the use of long needles it tends to diminish the traumatism caused by frequent punctures made necessary by shorter needles used with the ordinary quickly exhausted syringes." Solutions. — The solution used by Matas for routine work is a sterilized j^j- of 1 per cent, eucain B solution in normal salt solution ( T 8 o- of 1 per cent.) — with 10 to 15 minims of 1 : 1000 adrenalin chlorid solution added to the total amount injected. This solution is used in bulk, up to 5 or 6 ounces for injection into the tissues where the bulk of it will flow out — and Fig. 157. — The Original Type of Matas' Infiltrator: — Shown here to illustrate the manner of charging the receptacle with compressed air, which is done on the same general principle in the latest instrument. up to 2 ounces where this amount will be retained. The adrenalin is added for the purpose of producing ischaemia of the parts, especially where no form of constrictor can be used, and may be of benefit additionally because of its action upon the circulation. For preliminary intradermal injection i of 1 per cent, eucain B solution is used. Indications. — "In a general way, this method of infiltration is indicated in all operations in which the circulation cannot be controlled, and in which the major part of the infiltrating solution must remain in the tissues. By this method extensive extirpation of tumors, excision of malignant growths, ligation of all the important vessels of the neck and extremities, resection of nerves for neuralgia, excision of tongue, extirpation of thyroid gland, amputations, operations for hernia and other abdominal operations on debilitated patients, thoracotomy with resection of ribs, and other operations have been successfully performed in the clinics of the author of this method by combining the intra- neural method with local infiltration." Preparation; — Position; — Landmarks. — Dependent upon the special operation. Operation. — "In this, as in all other methods of local anesthesia, it is 174 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. most important to remember that the derm proper, and especially its papillary layer, must be first edematized by intraarticular infiltration before beginning the infiltration of the deeper planes; the same rule applies to mucous surfaces." For this purpose the weaker solution above mentioned is used, carried through a fine needle. "The field of the operation can then be edematized, (I) in toto; i. e., by infiltration en bloc without reference to nerves or other anatomical elements (as in the extirpation of a benign tumor of the breast); or (2) by circumferential infiltration; i. e., by enclosing the field of operation within a wall of anesthetizing edema, thus cutting off the enclosed space from all nerve communication with the surrounding parts (e. g., the extirpation of a pedicu- Fig. 158. — Matas' Older Form of Infiltrator: — Shown here to illustrate the manner of accomplishing massive infiltration, after filling the space in the bottle with compressed air — the same general technic being used with the latest instrument. lated tumor, or sebaceous cyst)," or the amputation of a limb. Where it is possible to control the circulation by a constrictor, and where exsanguination can be practised, these should be done. "The solutions are injected tepid or cold into the tissues; after the infiltration is completed the entire field is covered with a sterilized ice-bag for three to five minutes, which by refrigera- ting the solution, greatly intensifies the anesthetic action." Having obtained loss of sensation, the operation is proceeded with as indicated in the special instance. During the course of an operation begun by infiltration, individual nerves may be taken up and injected intraneurally — or the infiltrating solu- tion may be deposited among the deeper tissues (Fig. 158). EXPOSURE OF GASSERIAN GANGLION. 1 75 SURGICAL ANATOMY OF GASSERIAN GANGLION OF TRIFACIAL NERVE. Description and Relations. — (a) Both sensory and motor root of the trifacial pass downward and forward through an aperture in dura mater, which lies under cover of tentorium cerebelli and a little to outer side of apex of petrous portion of temporal bone, to enter Meckel's space, between the supporting and periosteal layers of dura mater, in which space the sensory portion enlarges into the gasserian ganglion, (b) The gasserian ganglion, of somewhat semilunar form, with convexity forward, rests in depression upon upper surface of petrous portion of temporal bone, near its apex — and also to a slight extent upon cartilage which occupies foramen lacerum medium. Its upper surface is firmly attached to dura mater (roof of Meckel's space) — its lower surface, less firmly (to floor of Meckel's space). Its inner part lies near posterior extremity of cavernous sinus and internal carotid artery. The motor root and the large superficial petrosal nerve lie beneath the ganglion. From its convex antero-external border are given off the following main divisions; — Ophthalmic, passing out through sphenoidal fissure; Superior Maxillary, passing through foramen rotundum; Inferior Maxillary, passing through foramen ovale and being joined immediately after its exit by the motor root, which also passes through foramen ovale separately. EXPOSURE OF GASSERIAN GANGLION AND THREE DIVISIONS OF FIFTH NERVE BY THE DIRECT INFRA- ARTERIAL ROUTE. cushing's method. Description. — A flap of soft parts, including the temporarily resected zygoma, is turned down, thus exposing the zygomatic and pterygomaxillary fossae. An opening is then made, with trephine or special instrument, through the most prominent portion of the great wing of the sphenoid, near, or including, the zygomatic ridge (infratemporal crest). The dura is thus reached below the middle meningeal artery and the ganglion exposed extra-durallv, in Meckel's space. The route of approach is more direct, the hemorrhage less, and the amount of handling of the brain less than in most of the methods of reaching the ganglion. Preparation. — Head shaved. Position. — Patient on back, head on one side and supported by firm pillow. Surgeon at side of head, either in front of or behind patient. Assis- tant opposite. Landmarks. — Outline of zygomatic arch. Incision. — Horse-shoe in shape, the ends of the two limbs being upon the outer and inner ends of the zygomatic arch, about 4 cm. (ij inches) apart, and the upper part of the convexity extending about 5 cm. (4 inches) above the zygoma. Operation. — (1) A skin-flap of the parts overlying the temporal fascia is turned down to a level just below the zygoma. The temporal vessels are secured. (2) A second horse-shoe incision, like the first but slightly smaller, is made through the temporal fascia, the base of the incision passing through the periosteum along the middle of the outer aspect of the zygoma. Through this periosteal incision free the zygoma of its periosteum except along the attachment of the masseter muscle. Divide the zygomatic arch at its inner 176 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. and outer ends with a Gigli saw conducted beneath it — having first drilled on each side of each saw-cut, for future ligaturing. (3) Along the line of the limbs and convexity of the preceding horse-shoe incision divide the temporal muscle down to the bone. Turn the flap of soft parts, with zygoma adherent, downward, firmly retracting it — so as to expose the zygomatic crest (infra- temporal ridge), the lower part of the temporal fossa and the beginning of the pterygomaxillary fossa. (4) An opening is now made through the prominent part of the wing of the sphenoid, either by a trephine of about 3 cm. (i\ inches), or by means of some special instrument, with or without previous burr-openings. The dura in the middle fossa of the base of the skull is thus exposed at a point to the outer side of and about midway between the foramina ovale and rotun- dum — very near the foramina and below and to the outer side of the middle meningeal artery emerging from the foramen spinosum. (5) The Gasserian ganglion and its three branches are thus exposed, after gently separating the dura from the bony wall of the middle fossa — these structures being still covered by their special investment of the dura, constituting Meckel's cavity or space (Fig. 159). This cavity of Meckel, which it is very important to S BC D Fir. 159. — Cushing's Operation for Exposure of Gasserian Ganglion and Three Branches of Trifacial Nerve: — A, Gasserian ganglion; B, Ophthalmic division of fifth nerve; C, Superior maxillary division; D, Inferior maxillary division; E, Floor of Meckel's space; F, Dural arch and roof of Meckel's space; G, Middle meningeal artery. (Modified from Cushing.) recognize, and which it is necessary to open before coming into direct contact with the structures sought, is incised along its outer aspect, between the second and third nerves, at their entrance into their foramina. By careful blunt dissection the superior portion of the roof of Meckel',s space is further opened up, leaving the ganglion and the second and third branches exposed upon the floor, or lower aspect, of Meckel's space. The floor of Meckel's space is now separated from these structures by blunt dissection, until the ganglion is EXPOSURE OF GASSERIAX GAXGLIOX. 177 raised from it. The dura is then separated on the inner side, where it lies in contact with the sixth nerve and cavernous sinus, the separation being accomplished toward the first division. The second and third divisions are put on the stretch gently by means of blunt hooks and divided close to their foramina. The body of the ganglion is seized with forceps and torn out, together with the origins of the second and third divisions and the first division. (6) Wounding of the middle meningeal artery is generally avoided. Hemor- rhage from small arteries and veins, and the cavernous sinus, if wounded, is controlled by packing temporarily. Where continuous packing is not neces- sitated, the wound is closed throughout, without drainage — suturing back the structures, including the zygoma, into normal position. The eye is covered with rubber protective — avoiding all pressure. Comment. — (1) Hemorrhage from the middle meningeal artery, the chief source of serious hemorrhage, is avoided by approaching the ganglion from below the artery. (2) The small size and protected locality of the opening through the skull makes the necessity of a bone-covering less than in the operations which reach the ganglion through the temporal fossa. (3) No attempt should be made to remove the ganglion until it has been freed from its special envelope of reflected dura — which should be accomplished from above first, thus lessening the hemorrhage which often accompanies the freeing of the ganglion from its bed. (4) The sixth nerve is often injured in freeing the ophthalmic division of the nerve — and the sympathetic always is, because of its intimate relation — but these occurrences are generallv not permanently serious. (5) The zygoma is sometimes not sutured back into position — but is allowed to sink into a less prominent position as the muscles of mastication atrophy. (6) It may be necessary to ligate the middle menin- geal artery. EXPOSURE OF GASSERIAN GANGLION AND THREE DIVISIONS OF FIFTH NERVE THROUGH TEMPORAL FOSSA BY OSTEOPLASTIC FLAP. HARTLEY-KRAUSE OPERATION. Description. — Osteoplastic resection of temporal region with temporary turning down of flap of bone and soft parts and separation of dura mater from middle fossa of skull — the three divisions of the fifth nerve being exposed and traced to the Gasserian ganglion, in Meckel's space, outside of the dura proper. Preparation. — Head shaved. Position. — Patient on back; head to one side and supported by firm pillow. Surgeon at side of head, either in front of or behind patient. Assist- ant opposite. Landmarks. — External angular process of frontal; tragus of ear; supra- temporal ridge. Incision. — A horseshoe-shaped incision is made over the temporal region, its anterior extremity being near the external angular process of the frontal bone, its posterior extremity near the tragus of the ear, and the highest part of the curve reaching the supratemporal ridge (Fig. 160). Operation. — (1) The above incision passes through all the soft tissues and periosteum directly to the bone, along the entire line. (2) With periosteal elevator, the soft parts of *' flap are freed from the bone to a slight extent only, around the entire i . n line — the freeing at the two ends of the base- 178 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. line being a little more extensive. Throughout the rest of its extent, the flap remains adherent to the underlying bone. (3) With a trephine of about 1.3 cm. (J inch) diameter, two discs of bone are removed, the anterior with its center over the tip of the sphenoid wing, the posterior having its center over a point 2.5 cm. (1 inch) vertically above the external auditory meatus. From these trephine openings the dura is separated as far as possible, both Fig. 160.— Exposure of Gasserian Ganglion by Osteoplastic Flai — Preparatory to the Hartley-Krause Operation: — I. — A, Periosteum; B, Horseshoe flap broken back and turned down ; C, Dura mater, with anterior and posterior branches of middle meningeal artery. along the straight basal line connecting the two openings, and in the direction in which the convex bone-section is to be made. (4) A section of bone similar in shape to the skin incision, but smaller in size, is now made. This section is made from the squamous portion of the temporal and greater wing of the sphenoid — the basal attachment being somewhat narrower than the greatest EXPOSURE OF GASSERIAN GANGLION. 179 transverse measurement of the convex portion. This bone-section was formerly made by a special chisel cutting a triangular groove- — but is now made by a motor or other saw — the section beginning at one trephine-opening and ending at the other, care being taken to do no damage to the dura. (5) The bone being thus cut through everywhere except across its basal line, some stout instrument (such as an osteotome or elevator) is inserted into the groove at its greatest convexity, resting against the parietal bone as a fulcrum — then, with a sharp, sudden movement, this flap of skin, muscle, periosteum, Fig. 161. — Exposure of Gasserian Ganglion" and Roots of Trifacial Nerve by Osteoplastic Flap, by the Hartley-Krause Method: — II. — A, Retractor elevating brain and exposing middle fossa of skull; B, Gasserian ganglion, with first division of trifacial nerve passing through sphenoidal fissure, second division through foramen rotundum, and third division through foramen ovale; C, Middle meningeal artery entering through foramen spinosum; D, Position of cavernous sinus and internal carotid artery; the third, fourth, and sixth nerves are seen between the cavernous sinus and the first division of the fifth nerve. The lamina of dura forming Meckel's space has been incised over the ganglion and the third division, but is not accurately shown in its reflection forming the roof of Meckel's cavity. Note: — the ganglion and branches are represented somewhat disproportionately large and prominent, as well as upon too high a plane. and bone is prized outward and downward, generally snapping directlv and evenly across the basal line just above the zygomatic arch, and remaining hinged by the soft parts — and exposing an area of brain (covered by dura mater) of about 5 to 7.5 cm. (2 to 3 inches) in diameter (Fig. 161). (6) If 180 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. the middle meningeal artery is found injured, it is tied as near the foramen spinosum as possible. (7) The dura mater and temporosphenoidal lobe of the brain are now separated from the middle fossa of the skull. This is done in the direction toward the apex of the petrous portion of the temporal bone, and is accomplished by the fingers or a piece of gauze, or by a curved, blunt elevator. Sometimes the dura is considerably torn, and sometimes the artery is torn whether the dura is or not, requiring temporary packing of the bony groove to control the hemorrhage, where ligature is impossible. Injured dura should be sutured wherever possible. (8) The three divisions of the nerve are now seen and are traced back from their foramina. The positions of the carotid artery and cavernous sinus are located as nearly as possible, for the purpose of guarding them. (9) Isolate and cut the first, second, and third divisions close to the sphenoidal fissure, foramen rotundum, and foramen ovale, respectively. Secure the proximal ends of the severed nerves with forceps or silk, and, practising traction upon them, trace them back to the gasserian ganglion — after incising the dura mater over them. Then, raising the ganglion from its bed, sever its connections with the brain close to the dura mater, and, if possible, without including or injuring the motor root. (10) At the end of the operation the dura and unexposed cerebral convolutions are allowed to fall into place — the flap of bone and soft parts is turned up — and sutures applied to skin and muscles. Comment. — (1) The width of the basal line of bone may be decreased by rongeur forceps, thus increasing the likelihood of a clean, transverse breakage — or a Gigli saw may be conducted under the bone at its base and made partly to divide it. (2) In the use of either chisel or saw, the inner tablet of the skull may be left uncut in two or three places, over a limited extent, so that when the flap is broken back, these parts of the vitreous are left as shelves for the flap to rest upon when turned back into place. (3) Bleeding may be so great as compel one to pack and finish the operation in two stages. (4) The advisability of removing the first division is doubtful, because of the trophic changes which follow in the eye. The first division is never involved alone. (5) The motor root should always be left undisturbed, if possible — to avoid paralysis of the muscles of mastication. It is more apt to be injured if the dura of Meckel's space be opened over the ganglion and the sensory root be cut between the ganglion and the pons. When possible it is best to cut the second and third divisions close to the foramen rotundum and foramen ovale respectively — dissect them back to the ganglion, and remove the parts of the ganglion corresponding to these divisions, leaving untouched the first division, with its corresponding ganglion and the motor root. (6) If the first division be removed, with the corresponding part of the ganglion, especial care is needed not to harm the cavernous sinus and the nerves to the eye — to aid in avoiding which, the second and third divisions should be removed first to give more room. If the first division be accidentally severed, leave the lacerated end as near the remains of the ganglion as possible. (7) If much oozing follows packing, wick or gauze drainage is indicated for twenty- four or forty-eight hours. (8) The chief dangers of the operations are — ■ injury to internal carotid and cavernous sinus; laceration of brain; injury to nerves of eye (third, fourth, and ophthalmic division) ; hemorrhage from middle meningeal artery. (9) In Horsley's method of intracranial exposure of the gasserian ganglion a large soft flap is turned down from the temporal region, the underlying bone is removed by trephine and bone forceps (not to be returned), the temporosphenoidal lobe exposed, the dura incised, the ganglion exposed, and the root cut on the proximal side of the ganglion. EXPOSURE OF GASSERIAN GANGLION. 181 EXPOSURE OF GASSERIAN GANGLION AND THREE DIVISIONS OF FIFTH NERVE BY TREPHINING THROUGH PTERYGOMAXILLARY FOSSA. rose's method. Description. — The ganglion is approached through the pterygomaxillary fossa, the zygoma being temporarily and the coronoid process of the inferior maxilla permanently resected, and the trephine applied to include the anterior and outer portion of the foramen ovale. The dura proper is not opened. Preparation. — Head shaved; eyelids stitched together with temporary sutures. Position. — As in preceding operation. Landmarks. — ( >uter canthus of eye; zygomatic arch; meatus auditorius externus; angle and horizontal ramus of lower jaw. Incision. — Begins near outer canthus of eye, about 1.3 cm. (h inch) below the external angular process of the frontal — passes backward along the upper border of the zygoma to its posterior extremity — thence downward just in front of ear to the angle of the jaw — thence forward along the horizontal ramus of the jaw to the facial vessels. Operation. — (1) Reflection of the Skin Flap; — Incise through skin and fascia only, along the above line. Raise this semicircular skin flap without harming the facial nerve or Stenson's duct. (2) Exposure of the Pterygoid Space; — Incise down through the periosteum for the entire length of the zygoma, and detach the periosteum. Drill (for later wiring of the bones) two holes through the zygomatic process of the malar, and two through the root of the zygoma. Divide the bone (downward and forward) between the two anterior holes — and also between the two posterior holes. Displace the zygoma downward and backward, bringing the masseter with it (dividing the necessary muscle-fibers). The coronoid process is exposed and cut obliquely downward and forward, as low as possible, then turned upward, and, together with tendon, cut away (there being no object in retaining it, as it would waste with the other muscles of mastication supplied by the motor fibers of the third division). (3) Exposure of the Foramen Ovale; — Expose the internal pterygoid by removing the overlying fat and connective tissue. The internal maxillary artery, which is generally found upon the muscle, is divided between two ligatures. The inferior dental and lingual gustatory nerves are sought at the lower border of the external pterygoid, cut, and their proximal ends tied with silk, to serve as guides. Expose the foramen ovale on the under surface of the great wing of the sphenoid, by partly cutting away and partly retracting away (by scraping) the external pterygoid — thus exposing both the great wing of the sphenoid and the external pterygoid plate. The foramen ovale is sought by following up the silk liga- ture, drawing the nerves of the third division taut, and also by the finger feeling in its known position, a little behind and external to the external pterygoid plate, remembering that just to the inner side and behind the foramen ovale lie the eustachian tube and the middle meningeal artery about to enter the foramen ovale. Bleeding is apt to be considerable here, espe- cially from the veins of the pterygoid plexus and from veins passing through the foramen ovale between the pterygoid plexus and the cavernous sinus. This hemorrhage is controlled by gauze packing. (4) Opening the Base of the Skull; — A small, long-handled trephine is placed just in front and to the outer side of the foramen ovale, so that the margin of the foramen is included in the disc of the bone to be removed. (5) Division of Nerve- trunks and Partial Removal of the Ganglion; — The trephine-opening having 182 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. been cleared and sufficiently enlarged by chisel or forceps, the surgeon follows, by means of the silk ligature, the third division up to the ganglion, which is Loosened from its bed and its second and third divisions freely resected — the first being left undisturbed. (6) Closure of the Wound;— The wound having been irrigated with i : 4000 bichlorid, dried and dusted with iodoform, the previously drilled zygoma is wired, the temporal fascia sutured to the cut margin of the fascia over the zygoma, and the wound closed without drainage. The eyelid stitches are removed in three or four days. Comment. — (1) The operation may be performed in two stages. (2) The coronoid process may be drilled (for wiring) before cutting. SURGICAL ANATOMY OF SUPRAORBITAL BRANCH OF FRONTAL NERVE. Description. — Passes forward from bifurcation of frontal nerve and leaves orbit through supraorbital notch (or foramen) — and, giving off palpebral branches, ascends vertically upward close to bone, beneath orbicularis pal- pebrarum and occipitofrontalis to forehead, where it divides into cutaneous and pericranial branches. The supraorbital vessels lie on its outer side. EXPOSURE OF SUPRAORBITAL BRANCH OF FRONTAL AT SUPRAORBITAL FORAMEN. Position. — Patient supine; head slightly elevated. Surgeon on side of operation, or above head. Landmarks. — Supraorbital notch (or foramen) — which, if not easily felt, lies at junction of inner and middle thirds of supraorbital margin. Incision. — Transverse, about 2.5 cm. (1 inch) in length, along supra- orbital margin, with center over position of supraorbital notch (or foramen) — the evebrow having been previously shaved. Operation. — Having steadied the brow by the first finger of left hand (which also draws up the soft parts so as to hide subsequent scar) and de- pressed lid with left thumb, carry the above incision through skin, fascia, and orbicularis palpebrarum — when the nerve will be found upon the peri- osteum, accompanied by its vessels. (Fig. 104). SURGICAL ANATOMY OF SUPERIOR MAXILLARY BRANCH OF TRI- FACIAL AND MECKEL'S GANGLION. Description. — Arises from center of gasserian ganglion — runs forward through foramen rotund urn — traverses upper part of sphenomaxillary fossa — enters orbit through sphenomaxillary fissure — thence courses forward along infraorbital groove, accompanied by infraorbital artery, to infraorbital canal — along which it passes to emerge upon face through infraorbital foramen, as the infraorbital nerve, terminating beneath levator labii superioris muscle in a leash of branches. The distance of infraorbital foramen from foramen rotundum is about 5 cm. (2 inches). Sphenopalatine or Meckel's Ganglion. — Placed deeply in spheno- maxillary fossa, beneath superior maxillary nerve, near sphenopalatine foramen. Its relations are: — Superiorly, superior maxillary nerve; Poste- EXPOSURE OF SURERIOR MAXILLARY XERVE. I8 3 riorly, sphenoid bone and Vidian canal; Externally, internal maxillary artery and external pterygoid muscle; Internally, vertical plate of palate and spheno- palatine foramen. Comment. — The posterior superior dental is given off from the superior maxillary just before the nerve enters the infraorbital canal — the middle superior dental, at the back part of the canal — and the anterior superior dental just before its exit upon the face. To insure, therefore, the removal of the origin of the posterior superior dental nerve, the trunk has to be removed as far back as Meckel's ganglion. . EXPOSURE OF SUPERIOR MAXILLARY NERVE AT FORAMEN RO- TUNDUM BY OSTEOPLASTIC RESECTION OF MALAR AND ADJA- CENT BONES. kocher's operation. Description. — Having temporarily raised a bony flap (composed of the parts mentioned below), the infraorbital nerve is liberated and traced back to the superior maxillary nerve and Meckel's ganglion, at the foramen rotundum in the sphenomaxillary fossa. Fig. 162. — Skin* Incisions for Exposure of Superior and Inferior M\xillary Nerves: — A, Kocher's incision for osteoplastic exposure of superior maxillary nerve at foramen rotundum; B, Kocher's incision for osteoplastic exposure of inferior nerve at foramen ovale. Position. — Patient supine; head elevated and turned to opposite side. Surgeon on side of operation. Landmarks. — Infraorbital foramen; infraorbital margin of orbit; malar bone. Incision. — Begins 1 cm. (nearly h inch) internal to the infraorbital foramen, and \ cm. (about \ inch) below the inner end of the infraorbital margin — -and runs almost horizontally outward, with slight downward inclina- tion, over the inferior aspect of the malar, to end over the zygoma (Fig. 162, A). Operation. — This incision exposes the angular artery at it- inner end, enabling the vessel to be displaced further inward or ligated. Steno's duct lies below the incision. The inner end of the incision passes down to the bone 184 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. between the fibers of the orbicularis palpebrarum and the levator labii superioris. The orbicularis, together with the periosteum, is raised from the bone as far upward as the orbit. The levator labii superioris is dissected subperiosteal! v down to the infraorbital foramen, where the infraorbital nerve is secured with a tenaculum or ligature. The outer portion of the incision runs above the origins of the zygomatici — these are detached down- ward — and the anterior fibers of the masseter are separated from the inferior and internal aspects of the malar. The external and internal surfaces of the malar are thus bared. The malar process of the superior maxilla is bared, upon its anterior surface, up to the infraorbital foramen — and, upon its superior surface, as far posteriorly as the sphenomaxillary fissure. Retract the upper edge of the wound upward sufficiently to expose the frontomalar suture, which is so chiseled through toward the posterior part of the spheno- maxillary fissure that its superior border, the orbital process of the malar, part of the orbital plate of the sphenoid, and part of the zygomatic process can be raised (Fig. 163). Anteriorly, the bone is chiseled through from Fig. 163. -Bone Sections in Kocher's Osteoplastic Exposure of Superior Maxillary Nerve at Foramen Rotundum. above the infraorbital nerve (in such a manner that the roof of the infraorbital canal is carried away) downward and outward, to below the anterior border of the origin of the masseter — and then upw 7 ard through the external wall of the antrum until it meets, posteriorly, the section through the orbital structures. Thus the external part of the orbital plate and the supero-external wall of the antrum, along with its posterior angle, remain connected with the malar bone, when the latter is levered out. Having raised the orbital fat with a special elevator and protected the globe of the eye, the mass of bone is dislodged upward and outward from the wound by means of a stout hook or periosteal EXPOSURE OF SUPERIOR MAXILLARY NERVE. 185 elevator. The infraorbital nerve, which is kept taut by the ligature attached to it, is now traced through the upper part of the opened antrum to the foramen rotundum. A small, blunt hook is carried behind the descending spheno- palatine nerves and made to grasp the main trunk, which is then divided or wrenched out. The accompanying infraorbital artery is either retracted or ligated. The malar bone, with its attached bony fragments, is now put back into its normal position — where it will generally remain without sutures, although fixation sutures may be used if desired. The soft parts are closed without drainage. No harm is ordinarily done by opening the antrum — and verv little disfigurement results. EXPOSURE OF SUPERIOR MAXILLARY NERVE AND MECKEL'S GANGLION BY THE ANTRAL ROUTE. CARXOCHAN'S OPERATION. Description. — The superior maxillary nerve is removed from the infra- orbital foramen to the foramen rotundum, together with Meckel's ganglion— by following the course of the infraorbital canal, and removing parts of the anterior wall, roof, and posterior wall of the antrum of Highmore. Position. — Patient supine; head elevated and turned slightly to one side. Surgeon on side of operation. Landmarks. — Infraorbital foramen (which is about S mm. — J inch — below the infraorbital margin, and on a line drawn from the supraorbital foramen to a point between the two bicuspids of both jaws). Incision. — -V-shaped (two sides of an equilateral triangle, each side being about 2.5 cm. — 1 inch — long), placed with its center over the infraorbital foramen and its two limbs upward. Operation. — (1) This incision is carried to the bone. The flap is then turned up over the closed eye and its apex stitched to the forehead. (2) The infraorbital nerve is isolated at the foramen, cut as long as possible, and tied with silk — to serve as a guide and means of traction. (3) A trephine of about 1.3 to 2 cm. (§ to f inch) in diameter, or a chisel, is now applied to the cleared bone, and a portion of bone removed including the foramen in its upper half — and the mucous membrane of the antrum is incised. (4) The upper portion of the posterior wall of the antrum is similarly removed over an area of about 6 mm. (\ inch), either by trephine or chisel. (5) The mucous membrane covering the roof of the antrum is now divided in the direction of the infraorbital canal, followed by breaking away the bony floor of the canal, which may be done by chisel or stout scissors, while practising traction upon the nerve as a guide. (6) By this means, and by the use of long slender scissors and dissecting forceps, the nerve is freed back across the spheno- maxillary fossa to the foramen rotundum, until it hangs freely exposed. (7) Effort should be made to recognize Meckel's ganglion at this stage, locating it as definitely as possible. Considerable bleeding may be expected at this period of the operation — hemorrhage being controlled chiefly by pressure. Artificial illumination should be used. The nerve, while slight traction is being applied, should be divided at the foramen rotundum and from its sphenopalatine branches. The nerve and ganglion are then withdrawn. (8) The soft parts are now sutured — and, if much oozing occur, temporary drainage is to be provided for through the lower angle of the wound, or tem- porary packing may be necessary, with subsequent suturing of the lower part of the wound. 186 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. Comment. — (i) A T-shaped incision may be used — the horizontal portion being placed under the lower margin of the orbit, and the vertical portion running down on the cheek to near the mouth. Or a r -shaped incision may be used — the horizontal portion along the orbit, and the vertical portion in the nasolabial groove. Probably the best incision is a long trans- verse one below the orbital margin, with strong retraction. (2) When Meckel's ganglion is removed, the vidian nerve is paralyzed and therefore the motor branches to the palate muscles. EXPOSURE OF SUPERIOR MAXILLARY NERVE AND MECKEL'S GANGLION BY THE ORBITAL ROUTE. Description. — After subperiosteally displacing the contents of the orbit from the infraorbital canal and removing the roof of the canal, the nerve is followed back to and beyond Meckel's ganglion and cut at the foramen rotundum. Position. — As in the above operation. Landmarks. — Infraorbital margin and infraorbital foramen. Incision. — Curved incision along lower margin of orbit over infraorbital foramen — extending from near internal angular process to external angular process of frontal. Operation. — Carry the incision to the bone throughout. Isolate the nerve — cut as long as possible — and attach a stout piece of silk to the proximal end as a guide and means of traction. The bone between the infraorbital foramen and infraorbital margin is removed by trephine or chisel, exposing the anterior portion of the infraorbital canal. The periosteum of the floor of the orbit is raised along the orbital margin with a periosteal elevator — a spatula or retractor is placed beneath this and the tissues of the orbit are held out of the way. The roof of the canal is next broken down with a fine chisel, or other instrument — bleeding being controlled by pressure— and the nerve lifted out of its bed by traction on the ligature — and is then traced back with delicate instruments to the foramen rotundum and removed, together with Meckel's ganglion and its terminal filaments. The orbital contents are then allowed to fall back into place and the skin incision sutured. Comment. — It is exceedingly difficult, and probably impossible, actually to leach the ganglion by this method, especially without wounding the eye- structures. It is also difficult to make the section far enough back to include all the dental nerves. EXPOSURE OF SUPERIOR MAXILLARY NERVE AND MECKEL'S GANGLION BY THE PTERYGOMAXILLARY ROUTE. BRAUN-LOESSEN OPERATION. Description. — The nerve and ganglion are reached in the pterygo- maxillary fossa by temporarily resecting the zygoma, turning it and the masseter muscle downward, firmly retracting the temporal muscle backward, and following the posterior surface of the superior maxillary bone into the pterygomaxillary fossa. Position. — Patient supine; head on one side and elevated; surgeon to right for both sides. EXPOSURE OF SUPERIOR MAXILLARY NERVE. 187 Landmarks. — External angular process of frontal; zygoma; posterior border of ascending ramus of lower jaw. Incision. — Begins at external angular process of frontal, passes downward and backward along upper border of zygoma to tragus of ear, thence down- ward in front of ear along posterior margin of inferior maxilla to angle of lower jaw. Operation. — (1) This incision (the region having been shaved) passes only through skin and superficial fascia — and the flap of integumentary tissues thus raised by dissection is turned forward and temporarily attached to the nose by suture. (2) An incision is made along the zygoma, passing to the bone, which is then exposed subperiosteally. Two holes are drilled (for wiring the bone later) through the malar bone on a line with a continua- tion of the upper part of its posterior border, and two through the zygoma near its root. The zygomatic arch is then sawed through between the two anterior drill-holes and between the two posterior drill-holes, directing the saw from without inward at the two ends (forming a beveled shelf for the arch to rest upon when replaced). The temporal fascia has been freed along its upper border in exposing the arch — and now the entire arch is turned down, with its attached masseter, cutting whatever fibers of that muscle are still holding the arch in place. (3) At this stage the mouth is opened with a gag and the lower jaw depressed, to carry downward and backward the coronoid process, with its temporal attachment — at the same time drawing backward with retractors the temporal muscle and tendon from the anterior portion of the temporal fossa. If this do not give sufficient exposure, the anterior part of the muscle and tendon is divided transversely. (4) The pterygomaxillary fissure is thereby exposed — and the internal maxil- lary artery and vein are seen entering and leaving the pterygomaxillary fossa through this fissure and are both ligated. The superior maxillary nerve is found leaving the foramen rotundum and is brought forward by means of a nerve-hook. The nerve and Meckel's ganglion can be more thoroughly exposed, at this stage of the operation, by chiseling away the spur of bone at the base of the external pterygoid plate, projecting outward and forward across the pterygomaxillary fissure and partially blocking the entrance to the pterygomaxillary fossa — and then both nerve and ganglion can be hooked forward. (5) In concluding the operation, the temporarily removed zygomatic arch is wired at both ends where previously drilled. If the temporal muscle have been partly severed, this is sutured. The temporal fascia is sutured to the cut margin of fascia over the zygoma. The skin incision is closed as usual. Comment. — (i) If the infraorbital nerve be exposed at its emergence upon the face from the infraorbital foramen and be severed, then by traction upon the nerve hooked up in the sphenomaxillary fossa the entire length of the infraorbital nerve may be drawn out of the canal backward and all its dental branches torn across in their bony canals. (2) This operation is similar, in principle, to Rose's method of exposing the gasserian ganglion— and the chief indication for its use is where it is found desirable to expose the inferior maxillary at the foramen ovale, as well as the superior maxillary, with Meckel's ganglion, at the foramen rotundum. To expose the superior maxillary and Meckel's ganglion alone, the antral or the orbital route would be preferable; — and to expose all three roots, or the second and third, the Hartley-Krause or the Rose operation, especially the former, would be better. 1 88 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. EXPOSURE OF INFRAORBITAL NERVE AT INFRAORBITAL FORAMEN. Position. — Patient's head slightly elevated. Surgeon to side of operation. Landmarks. —Infraorbital foramen — which, if not palpable, lies about 8 mm. (J inch) below infraorbital margin, and on line from supraorbital foramen to a point between the two bicuspids in both jaws. Incision. — About 2 cm. (f inch) in length, over the infraorbital foramen, parallel with the margin of the orbit. Operation. — Skin, fat, and orbicularis palpebrarum are incised. The levator labii superioris is exposed and also incised. The nerve is found at its emergence from the foramen. (Fig. 106). Comment. — The infraorbital nerve may be exposed through the mouth, without scarring. Having made the gingivolabial fold tense, an incision is made through the mucous membrane and periosteum along the line of reflec- tion from the upper lip to the superior maxilla. The soft parts are then dissected away from the bone along the canine fossa, subperiosteally, and firmly retracted upward — until the infraorbital foramen is reached. Note. — For the Anatomy of the Infraorbital, see the Superior Maxillary nerve. SURGICAL ANATOMY OF INFERIOR MAXILLARY BRANCH OF TRI- FACIAL AND THE OTIC AND SUBMAXILLARY GANGLIA. Description of Inferior Maxillary. — Formed of two roots — a large sensory root from the inferior angle of gasserian ganglion — and a small motor root which passes under the ganglion and unites with the sensory root just after it has passed through the foramen ovale — both roots passing through the foramen separately. The nerve divides into anterior and posterior divi- sions 3 to 4 mm. Q inch, about) beneath the base of skull and under cover of the external pterygoid — the former receiving the greater part of the motor root and the latter the greater part of the sensory root. Ganglia. — (1) Otic (Arnold's) Ganglion; — situated immediately beneath foramen ovale, having inferior maxillary nerve on its outer side, the eustachian tube on its inner side, and the middle meningeal artery on its posterior side. (2) Submaxillary Ganglion; — placed between mylohyoid and hyoglossus muscles, above deep portion of submaxillary gland, and at outer side of Wharton's duct. Note. — Foramen ovale lies on a line connecting the eminentia articularis, at root of zygoma, of one side, with that of the other, and about 3 cm. (if inches) from the eminentia — and is directly posterior and a little external to the external pterygoid plate. The middle meningeal artery enters the foramen spinosum just behind the foramen ovale. (3) The internal maxillary artery, in its second part, runs forward and upward on outer surface of external pterygoid muscle. (4) The pterygoid plexus of veins lies on the external pterygoid muscle. EXPOSURE OF INFERIOR MAXILLARY NERVE AT FORAMEN OVALE BY OSTEOPLASTIC RESECTION OF MALOZYGOMATIC ARCH. kocher's operation. Description.— Having temporarily resected the malozygomatic arch, the pterygomaxillary fossa is exposed, and the third division of the fifth nerve traced to its exit from the foramen ovale. EXPOSURE OF INFERIOR MAXILLARY NERVE. 189 Position. — Patient supine; head elevated and turned to opposite side. Surgeon on side of operation. Landmarks. — Frontal process of malar; posterior extremity of zygoma; pinna of ear. Incision. — Begins just posterior to the frontal process of the malar — passes thence obliquely downward and backward to the posterior end of the zygoma — and is carried thence upward and backward, in front of the ear, at right angles to the first portion of the incision (Fig. 162, B). Operation. — The first part of this incision is superficial — the latter portion, passing upward in front of the ear, is carried down to the bone, and the temporal vessels ligated. More anteriorly the incision divides the skin, superficial fascia, dense temporal fascia, and some fibers of the orbicularis palpebrarum — all of which are displaced downward, together with branches of the facial nerve going to the orbicularis and frontal muscles. The malar bone is exposed just behind its frontal process and divided vertically with a Fig. 164. — Bone Sections for Kocher's Osteoplastic Exposure of Inferior Maxillary Nerve at Foramen Ovale, at Malar and Zygoma. saw (Fig. 164). The zygoma is similarly divided transversely near its posterior root. The malozygomatic arch is then displaced downward with a strong hook. The external aspect of the temporal muscle is thus exposed — and its posterior and inferior borders are separated from the skull and retracted firmly forward. If necessary to afford freer access — which is rarely the case — the temporal insertion into the coronoid may be divided, or the coronoid itself be removed. Forward retraction of the temporal, however, is usually sufficient — together with the forward displacement, by retraction, of the structures of the retromaxillary fossa. All the soft parts, together with the periosteum, are thus liberated and retracted forward and inward — thereby exposing the external aspect of the pterygoid process — just posterior to the sharp edge of which the foramen is readily palpable, lying about 3 cm. (ij inches) internal to the zygomatic process. The middle meningeal artery, entering the foramen spinosum, lies just behind. The branches of the max- illary lie in the parts already retracted downward. The sometimes severe hemorrhage can be controlled by packing temporarily. The inferior maxillary 190 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. nerve is seized near its exit with a small, blunt hook and drawn forward — and is then grasped with forceps and removed entire. If the hemorrhage have ceased, and it is certain all the nerve has been removed, the malozygomatic arch is replaced and sutured into position and the wound closed throughout. If, on the other hand, hemorrhage persist, and there is uncertainty as to the nerve, the wound is packed for a time — and reopened in one or two days — and then secondarily sutured. The scar following the operation is not promi- nent. EXPOSURE OF INFERIOR MAXILLARY NERVE AT FORAMEN OVALE —OR OF SUPERIOR MAXILLARY NERVE AT FORAMEN ROTUNDUM. MIXTER'S OPERATION. Description. — Mixter's operation consists in a temporary excision and downward displacement of the zygomatic arch, with the attached masseter — followed bv a backward displacement of the temporal muscle, to reach the superior maxillary nerve and foramen rotundum — and a forward dis- placement of the muscle to reach the inferior maxillary and foramen ovale. The inferior maxillary nerve may be exposed at its origin by any of the opera- tions exposing the gasserian ganglion, either intracranially or extracranially. Position. — Patient on back; head elevated and turned to one side. Surgeon on side of operation, or to right for both operations. Landmarks. — Zygoma; temporal ridge. Incision. — Curved, with convexity upward — beginning about 1.3 cm. {\ inch) below malar portion of zygomatic arch and passing upward along posterior margin of malar bone and external angular process of frontal bone, to commencement of temporal ridge — thence follows lower temporal ridge to opposite anterior margin of ear — and then curves downward to pass in front of ear and ends about 1.3 cm. (J inch) below root of zygoma. Operation. — The above incision is made through the shaved skin and through the fascia — and this flap is turned downward, guarding Steno's duct. The temporal artery is ligated, unless it can be displaced backward. The zygomatic arch is exposed subperiosteal!}- and sawed through in front and behind, beveling from without inward — and guarding against opening the inferior maxillary articulation behind. The zygoma, attached masseter, and fatty connective tissue are now well retracted downward. The temporal muscle and its attachment to the coronoid process become thereby well exposed — and are manipulated in accordance with the structure sought: — (a) To Expose the Superior Maxillary Nerve and the Foramen Rotundum: — The temporal muscle and tendon are firmly retracted posteriorly, by a broad, smooth retractor, aided by an assistant's depressing the jaw — the surgeon being guided by the posterior wall of the superior maxillary bone and the spur of bone projecting forward and outward from the base of the external pterygoid plate. This spur is chiseled away to better expose the foramen rotundum, if necessary — the chiseling being done in a forward and slightly inward direction, to avoid going into the middle fossa of the skull. Having removed this spur, the superior maxillary nerve is to be found crossing the pterygomaxillary fossa from the foramen rotundum to the infraorbital foramen, with Meckel's ganglion beneath it, and near the sphenopalatine foramen, (b) To Expose the Inferior Maxillary Nerve and Foramen Ovale: — The temporal muscle and tendon are now firmly retracted forward (the jaw being now closed to carry the coronoid process forward) — the surgeon being EXPOSURE OF INFERIOR DENTAL NERVE IN MOUTH. 191 guided to the foramen ovale by its position just posterior and external to the base of the external pterygoid plate, at a distance of about 3 cm. (1^ inches) internal to the anterior margin of the posterior attachment of the zygoma and slightly posterior to this line drawn directly inward. On the way inward the internal maxillary artery is met on the external pterygoid muscle and ligated. The pterygoid plexus of veins also lies upon this muscle. The external and internal pterygoid muscles can generally be displaced by retrac- tion without necessitating their incision. The foramen ovale is usually recognized by the tip of the finger and the nerve is exposed emerging from it and drawn forward by a hook. Free hemorrhage may necessitate packing one part of the wound while working in another. In concluding the operation for exposure of either structure, the zygoma is replaced and the flap turned back into position. Comment. — (I) If the zygoma be drilled anteriorly and posteriorly and then sawed between each pair of drill-holes, it may be subsequently wired. (2) If sufficient room cannot be gotten by retraction of the temporal muscle and tendon, it may be divided in part, transversely — the anterior portion being cut to reach the foramen rotundum — and the posterior portion in order to reach the foramen ovale. The muscle should be sutured on completing the operation. (3) The coronoid process could be drilled, sawed between the drill-holes, and the coronoid tip and temporal attachment turned upward — to be afterward sutured back in place. (4) As much of the pterygoid muscles (especially the external) may be divided, or drawn away from its origin at the sphenoid, as needed. But the less the detachment of the tem- poral and pterygoid muscles, the less the involvement of the jaw articulation subsequently — except that caused by paralytic atrophy if the motor part of the third division be cut. (5) The motor part of the inferior maxillary is to be avoided if possible — but is generally unavoidably included in the destruc- tion of the sensory portion. SURGICAL ANATOMY OF INFERIOR DENTAL NERVE. Description and Relations. — A sensory nerve — a branch of inferior maxillary nerve, passing down under cover of external pterygoid muscle, it descends to outer side of internal pterygoid, to interval between ramus of inferior maxilla and internal lateral ligament, to dental foramen — accom- panied by inferior dental artery and having lingual nerve in front and internal to it. The mylohyoid branch is given off just before the nerve enters the dental canal, and the mental branch at its exit at the mental foramen. The dental foramen is surrounded by the lingula of Spix, to which is attached the internal lateral ligament, the groove for the mylohyoid nerve being just behind it and the attachment of the internal pterygoid muscle reaching to its base. The inferior dental vessels pass along behind and outside the nerve. The internal maxillary artery passes safely above the dental foramen. EXPOSURE OF INFERIOR DENTAL NERVE IN MOUTH PARAVICINI'S INTRABUCCAL METHOD. Position. — Patient supine; head slightly raised; gag in opposite side of mouth; cheek of operated side held open by retractors and commissure of mouth drawn backward. Surgeon faces patient and stands on his right for both operations. A head-mirror should be used. 192 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. Landmarks. — Ascending ramus of jaw; spine of Spix; internal pterygoid muscle. Incision. — About 2.5 cm. (1 inch) in length — along anterior border of ascending ramus of inferior maxilla, about 7 mm. (^ inch) to inner side of sharp anterior border of coronoid process, and ending over the spine of Spix. Operation. — Having incised and detached the mucous membrane and periosteum, feel for the spine of Spix — cutting the internal lateral ligament with scissors if necessary in order to expose the nerve entering the foramen — which is then isolated and drawn forward. The inferior dental artery lies in close contact and should be avoided. In completing the operation, it is better to close the incision with sutures — though these are often omitted. Comment. — Expose the dental foramen that the lingual may not be taken for the inferior dental nerve. If possible, avoid injuring the internal lateral ligament, which is attached to the spine of Spix. EXPOSURE OF INFERIOR DENTAL THROUGH ASCENDING RAMUS OF INFERIOR MAXILLA. Description. — The outer aspect of the lower jaw is exposed and the nerve reached by trephining the bone. Position. — Patient's head turned to one side and slightly elevated. Surgeon on side of operation. Landmarks. — The four borders of the ascending ramus of the inferior maxilla. Incision. — Curved, circumscribing the angle and lower half of ascending ramus of lower jaw — the transverse curve being just above the lower margin — and the vertical limbs corresponding with the anterior and posterior borders. Thus Stenson's duct escapes and but few branches of the facial nerve are injured. Operation. — This incision is first carried through skin and superficial fascia, when whatever nerves are in line of incision are retracted (especially the buccal and supramaxillary) — then through masseter and periosteum to bone. The soft parts are now freed from bone subperiosteally and retracted strongly upward, gaining room by this upward retraction without harm to the facial nerve or Stenson's duct. A window of bone, having its center corresponding with this quadrilateral surface of bone, is then removed with the trephine or chisel (a disc about 1.3 to 2 cm. — h to f inch — in diameter), remembering that the lower and anterior part of the ascending ramus is much thicker than the upper and posterior. Approach the nerve and accom- panying artery with care, elevating, rather than chiseling or trephining, the last thickness of bone. The nerve is then isolated in its canal. Comment. — (1) The nerve can be reached at its entrance into the dental canal and traced up to the foramen ovale by an extension of this operation, by widening the sigmoid notch. The incision passes through skin and superficial fascia only — beginning at the middle of the zygoma, passing backward and downward in front of the tragus to the angle of the jaw, and thence forward to a point just posterior to the facial artery. Raise this flap of skin and superficial fascia as far as the anterior border of the masseter and turn it forward. Expose Stenson's duct and edge of the parotid gland (sufficiently to guard them). Divide the masseter and overlying deep fascia down to the bone in a transverse direction, and between Stenson's duct above and the highest branch of the facial nerve below. Free the muscle from SURGICAL ANATOMY OF LINGUAL NERVE. 193 the bone at the sigmoid notch and just below. Apply the trephine so as to leave a slight bridge of bone between the sigmoid notch and the trephine- opening — and subsequently cut this bridge away with bone-forceps. Expose the inferior dental nerve and artery — ligate the artery and also the internal maxillary artery (upon the external pterygoid muscle) if necessary. Secure the nerve with silk ligature, and, by traction on silk, follow the nerve to the foramen ovale, retracting the external pterygoid upward (or divide it). Sever the nerve as high and as low as possible. The lingual nerve, lying further forward and inward, may be also reached at the same time. (2) The entrance to the inferior dental canal may also be reached from the inner aspect of the inferior maxilla — by making an incision around the angle of the jaw, corre- sponding with the insertion of the masseter, and raising the soft parts from the inner surface of the bones subperiosteally to the dental foramen — the mouth cavity not being opened (Liicke-Sonnenburg operation). (3) The operation of exposing the inferior dental nerve through the mouth is to be preferred, as being less disfiguring — although probably more difficult. EXPOSURE OF INFERIOR DENTAL NERVE AT MENTAL FORAMEN, FROM WITHIN MOUTH. Description. — The lower lip is everted and an incision made over the site of the mental foramen. Position. — Patient supine; head supported and to one side. Surgeon on side of operation, or on right for both operations. Assistant draws lower lip well downward. Landmarks. — A line drawn over the supraorbital foramen and between the two bicuspids of both jaws will cross the infraorbital and mental foramina — the mental foramen, in the adult, generally lying midway between the upper and lower borders of the jaw proper (exclusive of teeth). Incision. — Transverse, through mucous membrane along line of its reflection from lower lip to inferior maxilla, with its center between the two bicuspids, the lower lip being firmly drawn downward. A vertical incision may be made instead of the transverse. Operation. — This incision passes through periosteum to bone, upon slight downward freeing of which the nerve is found emerging from the mental foramen. Comment. — An incision could be made from without, through the tissues of the chin, over the position of the foramen, in the direction of the fibers of the facial nerve, if the matter of scarring be not taken into account. SURGICAL ANATOMY OF LINGUAL (GUSTATORY) NERVE. Description and Relations. — A nerve of common sensation — branch of posterior division of inferior maxillary nerve. Descends under external pterygoid, to inner side and anterior to dental nerve, a cord generally con- necting the two, and being joined near origin by chorda tympani. The nerve then passes between internal pterygoid muscle and ramus of lower jaw — inclining inward to side of tongue, and, passing over attachment of superior constrictor of pharynx to the lower jaw and the styloglossus muscle, above the deep part of submaxillary gland, is continued forward between mucous membrane of mouth and mvlohvoid muscle and lies on its origin 13 194 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. close to bone — then runs between mylohyoid and hyoglossus — crosses below Wharton's duct, and passes along side of tongue, under mucous membrane, to apex. Comment. — On widely opening the mouth, one can feel the pterygo- maxillarv ligament, as a prominent ridge behind the last molar. The nerve is generally to be felt behind the ptervgomaxillary ligament, about 1.3 cm. (\ inch) posterior and inferior to the last molar, lying just beneath the mucous membrane. EXPOSURE OF LINGUAL (GUSTATORY) NERVE IN THE MOUTH. Position. — Patient on back; head slightly raised; gag in opposite side of mouth; cheek of operated side held open by retractors; tongue of patient drawn out and to opposite side by assistant. Surgeon stands on patient's right for both operations, and uses a head-mirror. Landmarks. — Ramus of jaw; pterygomaxillary ligament; last molar tooth. Incision. — Vertical, about 2.5 cm. (1 inch) in length, placed in fold of mucous membrane midway between tongue and gum, with center on level with last molar. The nerve lies about at the junction of the upper and middle thirds of a line from the crown of the last molar to the angle of the jaw. Operation. — Having incised in the above line, the nerve is found just beneath the mucous membrane, prior to dipping under the mylohyoid muscle — and is isolated and drawn forward by a hook. Comment. — The lingual nerve may be reached from outside the mouth by excising a part of the inferior maxilla, at the junction of the alveolar process and the ascending ramus (Loebker). Or it may be reached by dissecting up under the internal surface of the inferior maxilla, displacing the sub- maxillary gland, dividing the posterior portion of the mylohyoid and finding the nerve under the posterior portion of the sublingual gland (Luschka). SURGICAL ANATOMY OF FACIAL NERVE. Description. — Arises, superficially, at upper end of medulla oblongata, in groove between olivary and restiform bodies — passes, in company with auditory nerve-, forward and outward to internal auditory meatus, which it enters with auditory nerve, the pars intermedia intervening between the nerves. At the bottom of meatus, the facial nerve enters aqueductus Fallopii, which it follows to its emergence at the stylomastoid foramen — thence passes downward and forward through substance of parotid gland — crosses external carotid artery and divides behind ramus of inferior maxilla, opposite upper margin of digastric muscle, into two chief branches: — (1) Temporofacial, running upward and forward through parotid gland, crossing external carotid artery and temporomaxillary vein and passing over neck of condyle of jaw, and dividing into temporal, malar, and infraorbital branches, — and (2) Cervicofacial, running downward and forward, through parotid gland, crossing external carotid artery, and dividing, opposite angle of jaw, into buccal, supramaxillary, and inframaxillary branches. EXPOSURE OF SPINAL ACCESSORY NERVE. 1 95 EXPOSURE OF FACIAL NERVE IN FRONT OF MASTOID PROCESS. BAUM'S OPERATION'. Position. — Patient supine; head elevated and to one side. Surgeon to right for both operations. Landmarks. — Anterior border of mastoid process; posterior border of ascending ramus of inferior maxilla. The point at which the nerve is sought being from 6 mm. to 1.3 cm. (J to \ inch) in front of center of anterior border of mastoid process. Incision. — Begins close behind pinna of ear, opposite meatus — passes downward to opposite lobule of ear, and then downward and forward almost to angle of inferior maxilla. Operation. — This incision is deepened through skin and fascia, with care. The parotid fascia is incised and the parotid gland is retracted forward. The anterior edge of the sternomastoid is exposed and drawn backward. The posterior belly of the digastric is exposed and the nerve is sought on a line with the upper border of the posterior belly of this muscle and at the point above mentioned — coming from the stylomastoid foramen toward the surface. The posterior auricular artery and vein will probably need ligating, and some fibers of the great auricular nerve will be cut. The internal jugular vein is near the deep part of the wound, but there are no other important vessels anterior to the plane of the digastric (behind which is the external carotid). If necessary, especially in stout subjects, a small transverse incision, passing forward from below the pinna, may be added. SURGICAL ANATOMY OF SPINAL ACCESSORY NERVE. Description and Relations. — (i) Accessory portion passes outward to jugular foramen, where it unites with spinal portion, and is joined to upper ganglion of the vagus and sends fibers into its pharyngeal and superior laryn- geal branches and into the trunk of that nerve below the ganglion. (2) Spinal portion, after issuing from jugular foramen (where it unites with accessorv portion), passes backward, crossing in front of (sometimes behind) the internal jugular vein, descends obliquely behind digastric and stylo- hyoid muscles and occipital artery to enter upper third of sternomastoid about 5 cm. (2 inches) below tip of mastoid process — perforates this muscle in its second fourth and emerges on level with center of its posterior border — and runs thence obliquely across the occipital triangle, and, entering upper part of lower third of its anterior border, terminates in the deep surface of the trapezius. EXPOSURE OF SPINAL ACCESSORY NERVE AT ANTERIOR BORDER OF STERNOMASTOID MUSCLE. Position.— Patient supine; shoulders slightly elevated; head to opposite side; neck supported. Surgeon on right, for either operation. Landmarks. — Anterior border of upper portion of sternomastoid. Incision. — About 7.5 cm. (3 inches) in length, following the anterior border of the sternomastoid, with its center opposite a point about 5 cm. (2 inches) below the tip of the mastoid process. Operation. — Having cut through skin and superficial fascia, and opened 196 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. up the cervical fascia, avoiding the external jugular vein and great auricular nerve, expose the anterior border of the sternomastoid and draw the muscle firmly backward. Recognize the inferior border of the posterior belly of the digastric — the nerve will be found pass- ing from beneath it to the sternomastoid, crossing the transverse process of the atlas. Avoid branches of the facial nerve (at the upper edge of the wound) and the occipital artery (lying over the nerve). Comment. — If only that portion of the spinal accessory be involved which is distal to the sternomastoid, the nerve may be ex- posed by an incision placed along the poste- rior border of the sternomastoid, with its center opposite the center of the posterior border of the muscle. FACIO-ACCESSORY OR FACIO-HYPOGLOS- SAL ANASTOMOSIS FOR PERIPHERAL FACIAL PARALYSIS. Description. — The operation consists in anastomosing the paralyzed facial nerve with some neighboring intact nerve. The anasto- mosis is usually made with either spinal ac- cessory or the hypoglossal. While each method has its advantages and disadvant- ages — and each method its adherents — it would seem that the greater advantages lie in favor of severing the spinal accessory nerve, and uniting its central end to the impaired peripheral end of the facial. The glossopharyngeal has also been used. Position. — Patient supine; shoulders slightly elevated; head to opposite side; neck supported. Surgeon on side of oper- ation. Landmarks. — Anterior border of sterno- mastoid muscle; mastoid process; upper bor- der of thyroid cartilage. Incision. — Along the anterior border of the sternomastoid — beginning 2 cm. (about I inch) above the tip of the mastoid process — and ending opposite the upper border of the thyroid cartilage. Operation. — (1) To Expose the Facial Nerve; — Having incised through skin and fascia, the sternomastoid is exposed and retracted posteriorly, and the parotid gland exposed and displaced anteriorly. The nerve is sought as it emerges from the gland at a point approximately 1 cm. (about J inch) above, and 1 cm. (about J inch) internal to the tip of the mastoid process. Just distal to the point selected for division, which should be as near the stylomastoid foramen as possible, two fine silk sutures should be carried through the sheath of the nerve, after which the nerve is divided (Fig. 165). (2) Fig. 165. — F acid-accessory An- astomosis: — A, Mastoid process; B, Parotid gland; C, Sternomastoid muscle; D, Stylohyoid and posterior belly of digastric muscles; E, E, Di- vided ends of facial nerve; F, Spinal portion of spinal accessory nerve; G, Divided end of spinal accessory anasto- mosed with distal end of facial nerve. (Modified from Berger and Hart- mann.) EXPOSURE OF POSTERIOR DIVISIONS OF CERVICAL NERVES. 197 To Expose the Spinal Accessory Nerve; — The nerve enters the deep surface of the sternomastoid about 5 cm. (2 inches) below the mastoid process. It is covered by the posterior belly of the digastric and the deep fascia, and lies just below the transverse process of the atlas. Here also two fine silk sutures are passed through the sheath of the nerve just proximal, in this case, to the line where the nerve is to be divided. The nerve is then divided transversely, with a sharp knife (and not with scissors, which also crush) — and is dissected up sufficiently to enable it to reach the severed distal end of the facial without tension — and here the facial and spinal accessory stumps are united end-to- end by means of fine silk interrupted sutures passing through their sheaths only. The spinal accessory may be used in three ways — the entire nerve may be taken; the branch to the trapezius may be used; or the trunk may be split and one of the split portions be employed. (3) To Expose the Hypo- glossal Nerve; — This is accomplished through the same incision. The pos- terior belly of the digastric lies just above the nerve, which is isolated as it runs forward from under the occipital artery to cross the external carotid. The technic of anastomosis is carried out as in the above instance. EXPOSURE OF POSTERIOR DIVISIONS OF FIRST, SECOND, AND THIRD CERVICAL NERVES. KEEN'S OPERATION. Description. — The posterior divisions of the first, second, and third cervical nerves have been exposed and excised in spasmodic torticollis- supplying, as they do, the posterior rotator muscles of the neck. Position. — Patient turned to one side; neck made prominent. Surgeon at patient's back. Landmarks. — Middle line of neck; external occipital protuberance. Incision. — From 6 to 7.5 cm. (2^ to 3 inches) in length and transverse in direction — passing outward from the middle line of the neck, at a point about 4 cm. (1^ inches) below the external occipital protuberance. Operation. — Divide, in the line of incision, the skin, fascia, trapezius, and posterior border of the splenitis capitis, until the complexus is reached, after which the nerves are separately isolated: — (1) Find the occipitalis major nerve (internal branch of posterior division of second cervical nerve) emerging from the complexus and about to enter the trapezius. Divide the complexus transversely, on a level with the nerve. Follow the nerve to the common trunk of the posterior division (before the external and internal branches are given off). Thus the second cervical nerve is exposed. (2) Recognize the suboccipital triangle, — bounded, above and internally, by the rectus capitis posticus major (from spinous process of axis to superior curved line of occiput), — above and externally, by obliquus capitis superior (from upper surface of transverse process of atlas to occipital bone, between curved lines, and external to complexus), — below and externally, bv obliquus capitis inferior (from apex of spinous process of axis to lower and back part of trans- verse process of atlas). Within this triangle lies the suboccipital nerve (posterior division of first cervical nerve), which does not divide into internal and external branches — lying close to the occiput and behind the vertebral artery. Trace it as near to the spine as possible. Thus the first cervical nerve is exposed. (3) The external branch of the posterior division of the third cervical nerve is found about 2.5 cm. (1 inch) lower down than the occipitalis major and upder the complexus. It is to be followed 198 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. to the common trunk of the posterior division. And thus the third cervical nerve is exposed. Comment. — This operation has been modified by making a vertical incision from the occiput downward, about 4 cm. (1^ inches) outside of the median line — passing through the trapezius, edge of the splenius, and then through the complexus. Also, the second and third divisions may be divided without the first. SURGICAL ANATOMY OF BRACHIAL PLEXUS OF NERVES. Formed by. — Fasciculus from anterior branch of fourth cervical, anterior branches of fifth, sixth, seventh, and eighth cervical, and greater part of anterior branch of first dorsal. Extent and Position. — From lower part of side of neck to lower part of axillary space, dividing, opposite the coracoid process, into numerous trunks, and giving off its terminal nerves at the lower axillary boundary, Relations. — (1) In neck : — First, lies between anterior and middle scaleni and at outer border of former muscle; — then parti}- behind and partly above and external to third part of subclavian artery, in the posterior triangle of neck, crossed by posterior belly of omohyoid; — then behind clavicle and subclavius muscle, upon first serration of serratus magnus and subscapularis muscles. (2) In axilla : — Lies to outer side of first portion of axillary artery, being covered by pectoralis major — then surrounds second portion of artery, covered by the pectoralis minor and resting upon subscapularis muscle, one cord lying to inner side, one behind, and one to outer side of vessel. The third part of the artery has the internal cutaneous and inner head of median nerve in front; circumflex and musculospiral behind; ulnar and lesser internal cutaneous on inner side; and trunk of median and musculocutaneous on outer side. EXPOSURE OF BRACHIAL PLEXUS IN NECK. Position. — Patient upon back, near edge of table; thorax raised; head extended and turned to opposite side; arm drawn downward and behind back. Surgeon stands in front of right shoulder, in operating upon either side. Landmarks. — Sternomastoid ; trapezius. Incision. — Vertical, in posterior triangle of neck — beginning about 9 cm. (3^ inches) above clavicle and passing downward to within about 1.3 cm. (J inch) of middle of clavicle, parallel with anterior border of trapezius, but nearer posterior border of sternomastoid. Operation. — Having divided skin and platysma, the external jugular vein is either ligated and cut between two ligatures, or retracted. Some of the descending branches of the cervical plexus are apt to be incised, generally the supraclavicular. Incise the deep cervical fascia. Recognize the outer border of the anterior scalenus and retract inward. Retract the posterior belly of the omohyoid downward and expose the brachial plexus by dissection. Avoid the transversalis colli artery and vein crossing the middle of the plexus. Identify the cords of the plexus by following with finger to the interval between the anterior and middle scalenus muscles. OPERATION FOR BRACHIAL BIRTH PALSY. 199 OPERATION FOR BRACHIAL BIRTH PALSY. Description. — The brachial plexus as a whole, or its constituent roots individually, is subject to the injuries which may involve nerve structures in general, resulting in a partial or general paralysis. A special form of paralysis, termed brachial birth palsy, is especially apt to occur at birth in those cases where the head and neck have been forced away from the shoulder, thus overstretching or lacerating nerve-roots of the brachial plexus, especially the upper roots. This subject has been extensively and creditably worked up by Clark, Taylor, and Prout, through whose courtesy the following writing is taken from Keen's " Surgery," Vol. II. "One of the most common and interesting forms of brachial palsy are the brachial birth palsies, usually of the upper arm type, very rarely the total Fig. 166. — Dissection* of the Operative Field in Brachial Birth Palsy (Clark, Taylor, and Prout): — A, Scalenus amicus muscle; B, Phrenic nerve; C, Internal jugular vein; D, Transversalis colli artery, divided; E, \'II Cervical root; F, Omohyoid muscle; G, V Cervical root; H, Scalenus medius muscle; I, VI Cervical root; J, Transversalis colli artery; K, Supra- scapular nerve; L, Nerve to subclavian muscle; M, Clavicle; N, Nerve to scalenus anticus muscle. arm palsy. They may occur in either vertex or breech presentation, when traction is exerted and the head pulled away from the shoulder. The attitude is very characteristic in severe cases; the arm hangs limp by the side, as it cannot be abducted at the shoulder or flexed at the elbow, and, as it cannot be rotated out at the shoulder or supinated in the forearm, the whole arm is rotated in and the hand is pronated so that it looks backward and sometimes even outward. They should be operated on as described below. Kennedv and Taylor have reported several operations with good results, and among them were cases ten and eleven years old. In mild cases nothing is required except massage, passive motion, electricity, and apparatus — and in all cases, unless there is neuritis, these measures should be faithfully employed until recovery results or it becomes necessary to operate. When there is neuritis, complete rest in the normal position is demanded until inflammation has subsided. The only treatment for cases of permanent paralysis is the excision 200 OPERATIONS UPON THE XERXES, PLEXUSES, AND GANGLIA. of the scar tissue replacing and surrounding the injured nerve and suture of the freshened nerve-ends. The time at which to undertake this treatment is still a matter of dispute. Kennedy advises early operation — in two or three months if the muscles give no response to the faradic current. If the muscles re-pond and continue to improve in response to the faradic current, he does not operate but expects spontaneous recovery. Taylor advises delay for a year in most cases of brachial birth palsies. The advantages of this delay are a more definite localization of the lesion, larger size of the field of operation, and diminished danger from shock and hemorrhage. Fig. 167. — Dissection of the Operative Field in Brachial Birth Palsy (Clark, Taylor, and Prout): — A, Phrenic nerve; B, Scalenus anticus muscle; C, Internal jugular vein; D, Transversalis colli artery; E, Omohyoid muscle, divided; F, Suprascapular artery, divided; (j, YIII Cervical and I dorsal roots; H, External anterior thoracic nerve; I, Subclavian artery; J, V Cervical root; K, VI Cervical root; L, Scalenus medius muscle; M, Nerve to scalenus anticus muscle; X, Suprascapular nerve; O, Transversalis colli artery; P, VII Cervical root; Q, Omo- hyoid muscle, divided; R, Suprascapular artery; S, Clavicle and subclavius muscle, divided and retracted; T, Deltoid, pectoralis minor, pectoralis major (muscles); U, Nerve to subclavius muscle. " The incision extends from the posterior border of the sternomastoid at the junction of its middle and lower third, to the junction of the middle and outer thirds of the clavicle through the skin, platysma, and deep fascia. The omohyoid muscle, exposed near the clavicle, with the suprascapular vessels beneath it, is retracted downward, or, if necessary, divided. Beneath the layer of fat at this level the deep fascia, usually thickened, covering the plexus is divided and dissected away from it. The injured portion of the nerve or nerves, determined beforehand from the paralysis, is felt to be thickened or EXPOSURE OF MEDIAN NERVE IN MIDDLE OF ARM. 201 indurated. This area is excised by a sharp scalpel through healthy nerve- tissue and the ends sutured (Figs. 166 and 167). " This incision suffices for the common type where the lesion is confined to the fifth or fifth and sixth nerve-roots and their junction. When, however, the lesion extends to the lower roots of the plexus, or lies in the lower part of the plexus, the incision should be extended downward and the clavicle, sub- clavius muscle, and, if necessary, the pectoral muscles divided to give a better exposure. If thought best, the operation may be done in two stages to avoid too long an operation and too much shock. The clavicle is afterward sutured periosteally. An immobolizing dressing approximating the head and shoulder to relieve any tension on the plexus should be applied and this position maintained for two or three weeks. After-treatment by massage, electricity, and the use and education of the muscles is very important. The results of these operations have been very encouraging. The improvement is slow and continuous through a number of vears." SURGICAL ANATOMY OF MEDIAN NERVE. Description. — (a) In Arm; Arises by a root from inner and one from outer cords of brachial plexus, which embrace axillary artery, uniting either in front or to outer side of the vessel. Descends arm on outer side of brachial artery at first — then crosses in front of the middle of artery (though some- times passing behind) — thence downward on inner side of artery to elbow — where it is separated from elbow-joint by brachialis anticus muscle and is covered by bicipital fascia, (b) In Forearm; Passes between two heads of pronator radii teres and descends between flexor sublimis and profundus digitorum to about 5 cm. (2 inches) above the annular ligament of wrist, where it lies beneath the fascia, between the tendons of the flexor sublimis digitorum below, the palmaris longus internally, and the flexor carpi radialis externally (or rather more under the palmaris longus). (c) In Hand; It enters palm beneath the annular ligament and rests upon flexor tendons, covered by fascia and superficial palmar arch. EXPOSURE OF MEDIAN NERVE IN MIDDLE OF ARM. Position. — Patient's arm is extended and abducted, with hand supine. Surgeon stands on outer side of right limb, cutting from above downward; and between body and left limb, cutting from above downward (or on outside of left limb, cutting from below upward). Landmarks. — Inner edge of bicipital muscle. Incision. — Along inner edge of biceps, in middle of arm — about 4 cm. (2^ inches) in length. Operation. — Divide skin and connective tissue. Avoid internal cutaneous nerve and basilic vein. Clearly expose inner edge of biceps muscle and draw the muscle to the outer side, when the median nerve is found crossing the brachial artery from the outer toward the inner side (or sometimes passing beneath the artery). 202 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. EXPOSURE OF MEDIAN NERVE AT BEND OF ELBOW. Position. — As above. Landmarks. — Groove between biceps and pronator radii teres muscles. Incision. — Between inner margin of biceps and outer margin of pronator radii teres, somewhat nearer the former, with center of incision opposite the fold of the elbow, and being about 5 cm. (2 inches) in length. Operation. — This incision will, in the usual disposition of the veins at the elbow, pass to the outer side and nearly parallel with the median basilic vein, which should be retracted inward. Incise the bicipital fascia in a line with the skin-cut. The median nerve lies just to the inner side of the brachial artery and its vena? comites — all lying upon the brachialis anticus. Gut- suture the bicipital fascia in closing the wound. SURGICAL ANATOMY OF ULNAR NERVE. Description. — (a) In Arm; Arises from inner cord of brachial plexus, between axillary artery and vein, and passes down arm on inner side of axillary and brachial arteries to middle of arm, covered only by skin and fascia — thence diverges to cross inner head of triceps obliquely — pierces interna] intermuscular septum and descends posterior to that structure, together with inferior profunda artery, which is upon its outer side, (b) At Elbow; Occupies groove between olecranon and internal condyle, resting upon posterior surface of latter (rarely upon anterior surface), and enters forearm between two heads of flexor carpi ulnaris. (c) In Forearm; Passes vertically down ulnar side, upon. flexor profundus digitorum, its upper half covered by flexor carpi ulnaris, its lower half by skin and fascia (the nerve here lying external to flexor carpi ulnaris). The ulnar nerve lies, throughout, to the ulnar side of the ulnar artery — the upper third lying considerably to the inner side, and the lower two-thirds near to the inner side. The dorsal cutaneous branch passes posteriorly between 5 and 7.5 cm. (2 and 3 inches) above the wrist, (d) At Wrist; Crosses front of annular ligament between ulnar artery and pisiform bone, a little internal and posterior to the artery, and immediately divides into superficial and deep palmar branches. EXPOSURE OF ULNAR NERVE ABOVE MIDDLE OF ARM. Position. — As for median nerve in middle of arm (page 201). Landmarks. — Brachial artery, which is parallel with and to outer side of the nerve for the upper half of the arm. Incision. — From 5 to 7.5 cm. (2 to 3 inches) in length, with its center just above the middle of the arm — running parallel with and about 1.3 cm. (^ inch) to inner side of line of brachial artery (the line for the ligation of the middle third of the brachial artery passing along the inner margin of the biceps muscle). Operation. — Incise skin and fascia, which here alone cover the nerve. Avoid the basilic vein and the vena? comites of the brachial artery — also the internal cutaneous nerve to the outer, and the lesser internal cutaneous nerve to the inner side. The ulnar nerve is found diverging from its course parallel with the inner side of the brachial artery to pass obliquely across the inner head of the triceps to pierce the internal intermuscular septum. EXPOSURE OF MUSCULOSPIRAL NERVE. 203 EXPOSURE OF ULNAR NERVE JUST ABOVE INTERNAL CONDYLE OF HUMERUS. Position. — Patient upon back at edge of table. Assistant stands on side opposite one to be operated, and, grasping patient's wrist, with patient's hand prone, draws his (patient's) arm and forearm across the chest, thus exposing its posterior surface to the operator — who stands upon the side to be operated, cutting from elbow toward shoulder on both sides. Landmarks. — Olecranon; internal condyle of humerus. Incision. — About 5 cm. (2 inches) in length, extending from a point about 1.3 cm. (h inch) above (to proximal side of) internal condyle and midway between internal condyle and olecranon, upward toward a point at inner side of brachial artery opposite the insertion of the coracobrachialis muscle (about center of arm). Operation. — Incise skin and fascia in above line — when the nerve will be found upon the posterior surface of the internal intermuscular septum, with the inferior profunda artery upon its outer side. Comment. — If the incision were to extend over the internal condyle, the nerve would be found lying upon the posterior surface of the base of the inner condyle of the humerus, close to the bone and along the inner edge of the triceps. SURGICAL ANATOMY OF MUSCULOSPIRAL NERVE. Description. — Arises, in common with circumflex nerve, from posterior cord of brachial plexus — descends arm behind axillary and brachial arteries and in front of tendons of latissimus dorsi and teres major, and winds around humerus in musculospiral groove, from inner to outer side, with superior profunda artery, lying between the internal and external heads of the triceps. Arriving at outer side of arm, it pierces the external intermuscular septum about midway between insertion of deltoid and tip of external condyle (namely, at lower third) and descends between supinator longus and brachialis anticus to front of external condyle, where it divides into radial and posterior inter- osseous nerves. EXPOSURE OF MUSCULOSPIRAL NERVE BELOW MIDDLE OF ARM. Description. — The exposure is here made upon the external aspect of the arm and the nerve is reached anterior to the external intermuscular septum. Position. — Same as for ulnar nerve just above internal condyle (page 203). The surgeon may also stand so as to cut from shoulder toward elbow. Landmarks. — Insertion of deltoid (about middle of arm); external condyle of humerus; upper border of supinator longus. Incision. — About 6 to 7.5 cm. (2% to 3 inches) in length — crossing obliquely the outer surface of the lower third of the arm — so placed that its center will be midway between the deltoid and the external condyle — and so that its obliquity will follow the line of the upper border of the supinator longus. Operation. — Having incised skin and fascia, avoiding cephalic and median cephalic veins, identify the internal border of the supinator longus. Draw this muscle to the outer side, so as to expose the interval between it 204 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. and the brachialis anticus — where the nerve will be found close to the bone, accompanied by a branch of the superior profunda artery. Comment. — Exposure of the nerve at its bifurcation into radial and posterior interosseous may be accomplished (if not performed as a separate operation) by continuing the above incision downward. SURGICAL ANATOMY OF THE INTERCOSTAL NERVES. Description. — (a) Pectoral Intercostal Nerves : — Pass outward, as the anterior divisions of the dorsal nerves, in front of superior costotransverse ligaments, levatores costarum, external intercostal muscles, covered (to angle of ribs) by pleura and endothoracic fascia. They then approach upper part of each intercostal space to accompany intercostal vessels, in groove of rib above, to front of chest — the nerve lying below the vessels. Between angle of rib and middle of rib they lie between internal and external inter- costal muscles, giving off, a little posterior to middle of the ribs, the lateral cutaneous branches — which latter branches pass through external intercostal and serratus magnus muscles about center of ribs and divide into anterior and posterior branches. The main trunk of the intercostal nerve continues forward among fibers of internal intercostal muscles to costal cartilages — ■ thence passes between internal intercostal muscles and pleura, crossing in front of internal mammary artery and triangularis sterni muscle — to pierce internal intercostal muscles and pectoralis major and end in the anterior cutaneous branches, (b) Abdominal Intercostal Nerves : — Take the same course (as the anterior divisions of the dorsal nerves) as the pectoral inter- costals, from their origin to ends of intercostal spaces in which they lie — thence they run between the slips of origin of diaphragm to enter the abdominal wall, each nerve (from seventh to ninth, inclusive) crossing behind cartilage of rib below. In the abdominal wall they pass between internal oblique and transversalis, diverging from each other as they go forward, to outer edge of the rectus — and, piercing posterior layer of rectal sheath, rectus itself, and anterior layer of sheath, they supply rectus and sheath and end in the anterior cutaneous nerves near the linea alba. Comment. — (i) The exceptions in the distribution of the anterior divi- sions of the first, second, and twelfth nerves are not mentioned in the above descriptions. (2) The upper six dorsal nerves form the pectoral intercostal nerves — the lower six, the abdominal intercostals. (3) The final distribution of the lower dorsal nerves is as follows; — sixth, to pit of stomach; seventh, to lower end of ensiform cartilage; eighth, over the middle linea transversa; tenth, to the umbilicus; twelfth, midway between umbilicus and pubis. EXPOSURE OF INTERCOSTAL NERVE BETWEEN ANGLE AND MIDDLE OF RIB. Position. — Patient on side. Surgeon either in front or at back of patient. Landmarks. — Angle and lower border of rib. Incision. — Parallel with and just below lower border of rib, and lying between the angle and middle of rib. Operation. — Having incised skin, fascia, and external intercostal muscle, separate the cut edges of the external intercostal muscle and seek for nerve in the intermuscular plane between external and internal intercostals, near the lower border of the rib above. The nerve may be drawn down into view from the groove in the lower border of the rib by means of a nerve-hook. If SURGICAL ANATOMY OF GREAT SCIATIC NERVE. 205 necessary, bite out a half-button of rib subperiosteally with rongeur forceps, fully exposing the nerve and intercostal vessels, when the latter may be divided between ligatures, if necessary. SURGICAL ANATOMY OF ANTERIOR CRURAL NERVE. Arises from second, third, and fourth lumbar nerves and descends through fibers of psoas muscle — emerging from lower part of its outer border, and descending beneath Poupart's ligament into thigh, beneath the iliac fascia, in groove between psoas and iliacus, being separated from femoral artery on its inner side by the psoas. It divides below Poupart's ligament into an anterior division, passing in front of the external circumflex vessels — and a posterior division, passing behind these vessels. EXPOSURE OF ANTERIOR CRURAL NERVE, BELOW POUPART'S LIGAMENT. Position. — Patient on back; limb extended and rotated slightly outward. Surgeon to outer side of right limb, and to inner side of left or on right, leaning over body; or on outer side of left limb, cutting from below up- ward). Landmarks. — Middle of Poupart's ligament. Incision. — Vertical, about 5 cm. (2 inches) in length, carried downward from a point about 1.3 cm. (h inch) external to center of Poupart's ligament. Operation. — Incise skin and superficial fascia. Crural branch of genito- crural nerve may be met running down the thigh. The superficial circumflex iliac vessels will lie across the incision. Flex the thigh to relax the muscles. The nerve will be found lying to the outer side of the femoral artery, in the groove between the iliacus and psoas muscle-. EXPOSURE OF OBTURATOR, SUPERIOR GLUTEAL. AND PUDIC NERVES. The operations for the exposure of the obturator nerve at the thyroid foramen, the superior gluteal nerve upon the buttock, the pudic nerve upon the buttock, and the pudic nerve in the perineum, are. practically, the same as the operations for the ligation of the obturator artery at the thyroid foramen, the gluteal artery upon the buttock (page 87), the internal pudic artery upon the buttock (page 87), and the internal pudic artery in the perineum (page 87), respectively. SURGICAL ANATOMY OF GREAT SCIATIC NERVE. Description. — Continuation of lower cord of sacral plexus — leaves pelvis by great sacrosciatic foramen, below pyriformis — descends from hollow between great trochanter and tuberosity of ischium down back of thigh, to about its lower third, where it divides into external and internal popliteal nerves (the division often occurring higher). The great sciatic nerve rests, from above downward, upon the ischium, gemellus superior, obturator internus, gemellus inferior, quadratus femoris and adductor magnus, — and is covered by, from above downward, the skin, fascia, gluteus maximus, biceps, and small sciatic nerve. It has the sciatic artery to its inner side, and small sciatic nerve superficial to it above, and to its inner side as it (the small sciatic nerve) descends the thigh. 2o6 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. EXPOSURE OF GREAT SCIATIC NERVE AT LOWER BORDER OF GLUTEUS MAXIMUS. Position. — Patient turned upon side sufficiently to expose field of opera- tion. Surgeon on side of operation, cutting downward on left side, and upward on right. Landmarks. — Lower margin of gluteus, which is below fold of buttock; tuberosity of ischium; great trochanter. Incision. — Begins over gluteal fold and passes vertically downward for a distance of 7.5 to 10 cm. (3 to 4 inches), with center of incision over lower margin of gluteus maximus and placed midway between tuberosity of ischium and great trochanter — although the nerve lies a' little nearer the former than the latter, for by this incision the hamstring muscles are more easily retracted. Operation. — Having incised skin and fatty areolar tissue, the small sciatic nerve and cutaneous vessels are encountered. Expose the lower edge of the gluteus maximus, running downward and outward, and retract upward. Find and retract the hamstring muscles inward, bending the knee to aid the retraction. The nerve is found a little nearer the tuberosity of the ischium than the great trochanter and under the outer edge of the biceps muscle. SURGICAL ANATOMY OF INTERNAL POPLITEAL BRANCH OF GREAT SCIATIC NERVE. Description. — The larger branch of the great sciatic. Extends from bifurcation, at lower third of thigh, through middle of popliteal space to lower border of popliteus muscle, where it becomes the posterior tibial nerve. It is covered, above, by hamstring muscles; in the middle, by skin and fascia; and below, by heads of gastrocnemii. The popliteal vein intervenes between the nerve superficially, and the artery deeply. In the upper popliteal space the nerve lies external to the popliteal artery and vein; at the level of the knee, the nerve crosses these vessels; and in the lower popliteal space the nerve lies to the inner side of the vessels. EXPOSURE OF INTERNAL POPLITEAL NERVE AT LOWER PART OF POPLITEAL SPACE. Position. — Patient rests on shoulder and side of chest, as nearly prone as anesthesia will allow; limb extended. Surgeon to outer side of left, cutting downward; and to inner side of right, cutting downward (or to outer side, cutting upward). Landmarks. — Heads of gastrocnemii muscles. Incision. — Begins opposite the center of the popliteal space and passes vertically downward for about 9 cm. (3^ inches), between the two heads of the gastrocnemii. Operation. — Having divided skin and superficial fascia, avoid external saphenous vein and nerve at the outer and lower part of the wound. Expose the heads of the gastrocnemii and open up, by blunt dissection, the interval between them, retracting the heads of the muscle to their respective sides. The nerve will be found the most superficial of the important structures in the popliteal space. EXPOSURE OF EXTERNAL POPLITEAL NERVE. 207 SURGICAL ANATOMY OF POSTERIOR TIBIAL NERVE. Description. — The direct continuation of internal popliteal nerve. Extends from lower border of popliteus muscle to interval between internal malleolus and heel, where it divides into internal and external plantar nerves. It is covered, above, by gastrocnemius, plantaris, soleus, and intermuscular deep fascia; and, below, by only skin and fascia. It rests upon (its anterior relations are), above, tibialis posticus; and, below, flexor longus digitorum. It lies to inner side of posterior tibial artery above, but soon crosses it and runs on its fibular side to ankle. EXPOSURE OF POSTERIOR TIBIAL BETWEEN ORIGIN AND ANKLE. The operation for the exposure of the posterior tibial nerve at its origin is, practically, the same as that for the exposure of the internal popliteal at the lower part of the popliteal space (page 206). The posterior tibial nerve in the leg may be exposed by the same operation as would expose the poste- rior tibial artery at the same level (pages 109 and no). EXPOSURE OF POSTERIOR TIBIAL NERVE BEHIND INTERNAL MALLEOLUS. Position. — Patient on back; knee flexed; leg resting on outer side. Sur- geon stands facing either foot, cutting from above downward. Landmarks. — Internal malleolus; tendo Achillis. Incision. — Curved, about 5 cm. (2 inches) in length, made about 1.3 cm. (^ inch) behind and parallel with the internal malleolus, beginning just in front of tip of malleolus and extending upward in a line midway between internal malleolus and tendo Achillis. Operation. — Directing the knife toward the tibia, divide skin, superficial fascia, and annular ligament. The order of the structures met behind the internal malleolus, from within outward, is, tibialis posticus; flexor longus digitorum; posterior tibial artery, vein and nerve; flexor longus hallucis. The nerve is therefore sought between the tendons of the flexor longus digi- torum and flexor longus hallucis. SURGICAL ANATOMY OF EXTERNAL POPLITEAL (PERONEAL) BRANCH OF GREAT SCIATIC. Description. — Smaller branch of great sciatic. Enters superior angle of popliteal space and passes obliquely along outer side of this space to head of fibula, lying near inner border of biceps (lying beneath skin and fascia, behind head of fibula, to inner side of biceps tendon). The nerve leaves the popliteal space in interval between biceps tendon and outer head of gastrocnemius — winds around neck of fibula between bone and peroneus longus muscle — and, piercing origin of latter muscle, divides into anterior tibial, musculocutaneous, and recurrent articular nerves. EXPOSURE OF EXTERNAL POPLITEAL BEHIND TENDON OF BICEPS. Position. — Patient on uninvolved side, rolled into slightly prone position; leg extended. Surgeon stands facing back of patient's knee. Landmarks. — Tendon of biceps; head of fibula. 208 OPERATIONS UPON THE NERVES, PLEXUSES, AND GANGLIA. Incision. — About 4 to 5 cm. (i£ to 2 inches), along posterior edge of tendon of biceps, extending from over the prominence of the external condyle of the femur toward the posterior border of the head of the fibula. Operation. — Divide skin and deep fascia. Expose the biceps tendon. Flex the knee to relax the tendon and search for the nerve near the attachment of the biceps tendon to the head of the fibula, near the outer edge of the gastrocnemius. SURGICAL ANATOMY OF ANTERIOR TIBIAL BRANCH OF EXTERNAL POPLITEAL. Description. — One of the terminal branches of the external popliteal. Commences between fibula and peroneus longus — pierces septum between peronei and extensors — passing obliquely beneath extensor longus digitorum to forepart of interosseous membrane. Runs forward on interosseous mem- brane between extensor longus digitorum and tibialis anticus, in upper part of leg — and between tibialis anticus and extensor longus hallucis, lower down. Passes under anterior annular ligament and ends in front of bend of ankle in external and internal branches. The anterior tibial nerve reaches the fibular side of the tibial artery at the junction of the upper and second fourths of the leg, thence lies in front of the artery to the ankle, and thence generally lies to its outer side. EXPOSURE OF ANTERIOR TIBIAL NERVE NEAR ORIGIN. Position. — Patient supine and inclined to uninvolved side; hip slightly flexed and rotated inward, so that knee rests upon inner aspect. Surgeon stands behind either limb, cutting from above on the right, and from below on the left. Landmarks. — Outer tuberosity of tibia; head of fibula. Incision. — Begins opposite the most external part of the tibial tuberosity, and about 1.3 cm. (| inch) anterior to the head of the fibula, and passes downward for 5 to 7.5 cm. (2 to 3 inches). Operation. — Having incised skin and fascia, the intermuscular septum between peroneus longus and extensor longus digitorum is sought, running obliquely downward and forward, and is opened up by blunt dissection. The anterior tibial nerve (and also the musculocutaneous nerve) is found deep in this intermuscular interval, running downward and inward, below the fibular head and covered by the extensor longus digitorum (the musculo- cutaneous running vertically downward). Comment. — The anterior tibial nerve may be exposed at any point on the leg below its upper fourth, by the same operation as would expose the anterior tibial artery at the corresponding level (pages 104, 105, and 106). SURGICAL ANATOMY OF THE CERVICAL SYMPATHETIC GANGLIA AND CORD. Description. — The cervical portion of the gangliated cord lies deeply in the neck, embedded in the fascia between the muscles covering the front of the vertebral column behind, and the carotid sheath in front — and consists of three ganglia, together with the connecting cord: — (a) Superior Cervical TOTAL EXCISION OF CERVICAL SYMPATHETIC. 209 Ganglion (largest) — lies opposite second and third cervical vertebrae (some- times, fourth and fifth) — rests upon rectus capitis anticus major, posteriorly, — has internal carotid artery and internal jugular vein, anteriorly, — and pneumogastric nerve, externally, (b) Middle Cervical Ganglion (sometimes wanting) — opposite sixth (or seventh) cervical vertebra — upon, or close to, where the cord crosses the inferior thyroid artery, (c) Inferior Cervical Ganglion — between base of transverse process of seventh cervical vertebra and neck of first rib, lying between subclavian and vertebral arteries. TOTAL EXCISION OF CERVICAL SYMPATHETIC GANGLIA AND CORD. JONNESCO'S OPERATION. Description. — -The cervical sympathetic ganglia and cord have been incised, partially excised, and totally excised — chiefly for exophthalmic goiter and epilepsy — and also in hysteria, chorea, tumors of the brain, and glau- coma. The cord and one or both upper ganglia of one or both sides have been removed, — or both upper ganglia of both sides, with intervening cords, — or both cords with all the ganglia of one or both sides. The removal of the cord and ganglia of one side will be described below. Position. — Patient supine; shoulders and head raised and latter turned to opposite side; neck, shaved, rests upon a narrow support (to render promi- nent). Surgeon to right, for both sides. Landmarks. — Mastoid process; posterior border of sternomastoid; clavicle. Incision. — Beginning opposite the posterior margin of the mastoid pro- cess, passes downward along the posterior border of the sternomastoid to just below the clavicle. Operation. — Incise skin, superficial fascia, and platysma. Divide the external jugular vein between two ligatures. Displace the sternomastoid inward (or it may be split longitudinally near its posterior border and the parts retracted laterally). Expose the common sheath of the vessels by blunt dissection. Lift the carotid sheath, unopened, upward and retract it inward — when the cervical cord and superior and middle cervical ganglia will be exposed, lying upon the prevertebral muscles. Having well retracted the structures to that side toward which most easily displaced, isolate the trunk of the cervical sympathetic near the center of the incision. Follow it up to the superior ganglion, divide the communicating branches of the ganglion with delicate scissors, and remove the ganglion with fine forceps. Practising slight traction upon the distal end of the trunk, trace the cord down to the middle ganglion, which is similarly removed — carefully guarding, throughout, all important adjacent structures. Continuing gentle traction upon the cord, just sufficient to follow it, trace the main trunk down behind the clavicle to the inferior ganglion. Guard the spinal accessory nerve in the upper part of the neck — the nerves of the cervical plexus in the middle of the neck — the thyroid and vertebral vessels, recurrent laryngeal and phrenic nerves and pleura in the lower part of the neck — and the thoracic duct on the lower left side. In closing the operation, approximate the separated muscles with buried gut sutures — and close the superficial wound in the usual manner, unless temporary drainage be indicated. CHAPTER V. OPERATIONS UPON THE BONES. OSTEOTOMY IN GENERAL. Definition. — Any division of bone by cutting instrument. Indications. — Deformities of bones and joints (such as result from congenital conditions) ; diseases of bones and joints, followed by weakening of bone and subsequent curvature or angularity; malunion following fracture; ankylosis. Varieties. — (a) Linear Osteotomy; Simple division of bone in its con- tinuity, by simple transverse, oblique or vertical section-line (e. g., linear osteotomy of neck or shaft of femur for faulty ankylosis), (b) Cuneiform Osteotomy; Removal of a wedge-shaped piece of bone in its continuity (e. g., cuneiform osteotomy for bent tibia), — or from, or including, one of its ends (e. g., cuneiform osteotomy of a joint for ankylosis), (c) Osteo-arthrotomy; Though not a distinct variety of osteotomy, may be considered as an inter- articular osteotomy, linear or cuneiform. General Manner of Performing Osteotomy as to the Instrument. —Osteotomy, in general, may be performed with an osteotome, an instrument ground evenly from both sides, and graded upon its blade to indicate depth of section, — with a chisel, an instrument beveled from one side only, and similarly graded upon handle, — or with a special saw. General Manner of Performing Osteotomy as to Method of Opera- tion. — (a) Open Method; in which the site of the bone-section is exposed to view by a preliminary operation, (b) Subcutaneous or Submuscular Method; in which the site of bone-section is reached through the smallest, simplest incision and the bone divided out of sight and by the sense of touch. Cuneiform osteotomy is nearly always done by the open method. Linear osteotomy may be done by the subcutaneous or by the open method — the former being more frequently done — the latter being preferable where the safety of the parts can be better preserved by first exposing them. Cuneiform osteotomy should be done subperiosteally where possible, and when not contraindicated (as by disease). Linear osteotomy should be done sub- periosteally when performed by the open method, if possible and not contra- indicated. Linear osteotomy is usually performed with an osteotome or a saw. Cuneiform osteotomy is generally done with a chisel (sometimes with a saw). Instruments Used in Osteotomy. — Rubber tourniquet; scalpels; tenotomy knives; hemostatic forceps; dissecting and toothed forceps; scissors, curved and straight, sharp and blunt; retractors; chisels, various sizes and widths; osteotomes, various sizes and widths; mallets, preferably of wood; saws, especially of the osteotomy type (with narrow blade and with cutting part only at end, and with blunt point and large handle), and also chain- saws, Gigli saws, and butcher saw; periosteal elevators, curved and straight; rugines; raspatories; blunt dissector; bone-holding forceps; bone-cutting 2IO LIXEAR OSTEOTOMY BY THE SUBCUTANEOUS METHOD. 211 forceps; needles, straight and curved; needle-holder; chromic and plain gut; silkworm-gut and kangaroo tendon; bone-drills; silver wire; pegs and nails, ivory and metallic; sand-bag (for part to rest upon and dissipate the jar). Preparation of Patient. — The part shaved. Position. — The position of patient, surgeon, and assistant will be deter- mined by the special operation. LINEAR OSTEOTOMY BY THE SUBCUTANEOUS METHOD. Steps of Operation Preparatory to Division of Bone.— Having ex- sanguinated the limb by elevation, followed by the application of a rubber tourniquet (which may generally be dispensed with), the portion of the limb involved is placed upon a sand-bag (previously damp- ened and covered with several layers of wet. sterilized tow- els, to prevent the fly- ing of dust), which forms a yielding bed into which the part may be moulded and in which it may re- ceive the jar of the blows from the mal- let. An incision, just long enough to ad- mit the osteotome or saw, is made over the site of the bone- section. The incision is as limited as pos- sible, and so placed as to reach the bone by the most direct and safest route, and with the least danger to important struc- tures. It should be, where possible, in a line with the over- lying muscle-fibers— should avoid vessels and nerves — and is generally parallel with the bone. This incision is usually made directly to the bone with one stroke — it being impossible, from the small size of the wound, to recognize the intermuscular planes, or the bone's exact level, if at any depth from the surface. Hav- ing made a path to the bone, the remaining steps of the operation will de- pend upon the instrument with which the division of the bone is to be made. Division of Bone with Osteotome. — Having made the incision through Fig. 1 6S.— Linear Osteotomy by the Sibcutaneois Method: — A. Linear osteotomy of anatomical neck of femur with saw; B, Linear osteotomy of surgical neck of femur with osteotome. 212 OPERATIONS UPON THE BONES. the soft parts with a knife, the knife is not withdrawn but allowed to remain in situ as a guide — upon this an osteotome (somewhat narrower than the bone to be divided) is introduced, entering the wound with the length of its cutting edge corresponding to the length of the wound. It is carefully passed down, in contact with the knife, to the bone, and the knife withdrawn. The osteotome, constantly held in contact with the bone, is now turned with its cutting-edge in the direction of the desired bone-section (which is generally at a right angle to the incision of the soft parts). In the act of turning the osteotome into position, the soft parts are levered away by the blunt sides of the instrument, and the bone is hugged, but care is used not to detach the periosteum (which the knife-incision may have cut) (Fig. 168, B). The osteotome is held in the surgeon's left hand near its cutting end — being grasped in his full hand, the ulnar margin of his hand resting on the patient's limb to steady the instrument. The instrument should cut away from important structures, and preferably toward the surgeon. After each stroke of the mallet, the osteotome should be shifted, traveling back and forth in the line of section, that it may not bind in any one place. In section of thick bones, if the instrument bind, it is withdrawn and a thinner (not narrower) one is introduced — and subsequently a still thinner, if necessary. Progress through the bone is determined by the skilled sense of touch. The section should be evenly made, as to depth, completely across the width of bone, traveling back and forth, no two blows being made in one site. Never remove the instrument from the groove in the bone when once the section has been commenced (unless a larger instrument catches in the section and has to be replaced by a thinner one), for it is often hard to regain the groove. The last portion of bone on the far side of the section, when important structures are just beyond, need not be cut with the osteotome, but may be bent or broken subsequently by manipulation of the limb. Division of Bone with Saw. — A special osteotomy saw, generally of the Adams type, is used. The operation is very similar to that just described, except in the substitution of the saw for the osteotome. The skin incision is placed as in the above operation, but is made with a tenotome instead of an ordinary knife — usually cutting in the line of the muscle-fibers and in the axis of the limb. When the bone is reached, the blade of the tenotome is turned so as to cross the bone transversely and is made to cut a path for the saw across the bone — the non-cutting part of the handle of the tenotome doing no harm to the soft parts between the bone and wound of entrance. When the way for the saw has been prepared, the tenotome is left in situ as a guide. Upon this the blade of the saw is introduced down to the bone and its cutting part pushed on across the portion of bone to be divided (Fig. 1 68, A). The bone is to be sawed with short strokes, guarding against thrusting the point of the saw into the soft parts, especially at the beginning and ending of the section. The section may be nearly made with the saw and completed by manual bending or breaking. After-treatment. — Following osteotomy, the limb, or part, is in a con- dition of compound fracture made under the most favorable circumstances. Some form of splint, or a plaster-dressing, must immobilize the limb and keep the ends of the bones in apposition. The wound is closed by suture — no drainage being used in clean cases. Comment. — (i) In division by an osteotome, the osteotome itself is sometimes used to cut its way through the soft parts, instead of knife. (2) When the bone-section is nearly complete, bending is especially applicable LINEAR OSTEOTOMY BY THE OPEN METHOD. 213 in young tender bones. (3) The section of the bone should generally be completed by instrument, and not by breaking, as a splinter of bone may do damage to adjacent parts. LINEAR OSTEOTOMY BY THE OPEN METHOD. Steps of Operation Preparatory to Division of Bone. — The site of the bone-section is exposed by an incision so placed as to reach the bone most readily and safely, seeking an intermuscular plane where possible. Having passed through skin, fascia — and through or between muscles — ■ the soft parts are opened up and retracted to either side — and the region of bone fully exposed to view. Where it is possible to do so, and where it is not contraindicated, the periosteum is incised in the long axis of the bone, freed from its circumference, and retracted with the soft parts. The bone-section may then be made with an osteotome or with a saw: — ■ Division of Bone with Osteotome. — The osteotome is introduced at once upon the bone, in the direction the section is to be made — after which it is manipulated as in the subcutaneous method — much greater control of the instrument being possible. Division of Bone with Saw. — -The saw- is similarly introduced at once upon the bone, in the direction the sec- tion is to be made. The section is then made by short strokes, while the parts are well retracted and the entire operation exposed to view. After - treatment. — U n 1 e s s contraindi- cated, the periosteum should be sutured with gut — the sutures at the same time passing through the muscles and quilting them together. The wound is then closed in the usual way — and a retentive apparatus applied, as described in the last operation. Comparison. — In subcutaneous osteotomy the use of the osteotome is safer, less damaging, and the section is cleaner than by the saw. In open osteotomy the saw is preferable, especially the chain or Gigli saw. In the open method, while a larger wound of entrance is made, the bone-section is more accuratelv made and less damage is done to the neighboring tissues. Fig. 169, -Cuneiform Osteotomy: — Chisel is shown removing wedge-shaped piece of bone from bent tibia. 214 OPERATIONS UPON THE BONES. CUNEIFORM OSTEOTOMY. Description. — A wedge-shaped piece of bone is removed, the size of which is determined by the needs of the case — the general rule being that the sides of the wedge should be at right angles to the axis of the bone just above and below the section — ordinarily, however, a smaller wedge suffices. The wedge usually extends entirely through the bone, its base being upon one surface and the apex upon the opposite — but it may extend only two- thirds or three-fourths of the way through, the balance being bent or broken. The operation is nearly always done by the open method. Operation. — Having exsanguinated the limb by elevation, followed by the application of a rubber tourniquet (which is much more frequently used than in the linear form of osteotomy) the limb is placed upon a sand-bag. The incision is placed over the site of the base of the wedge to be removed and is considerably longer than the base of the wedge — and is so planned as to enable the bone to be reached through the most direct and safest route, and to enable the muscles to be separated rather than cut. The skin and fascia are first incised — the muscles separated in their intermuscular cleavage line and retracted — and the periosteum incised in the axis of the bone, down to the bone, and retracted with, and adherent to, the soft parts. This clearing of the bone subperiosteally is accomplished with a curved periosteal elevator, the clearing being done more extensively at the site corresponding with the base of the wedge. The chisel is the best instrument with which to perform cuneiform osteotomy — though a chain or Gigli saw may sometimes be used advantageously, and even an ordinarv saw may be conveniently used in some cases of angular ankylosis (Fig. 169). The chisel is held like an osteo- tome, for the sake of steadiness. The beveled edge of the chisel is directed toward the wedge of bone to be removed. If the wedge be of considerable size, it cannot be removed with accuracy in one piece — a small wedge, narrow at its base, must be first removed — and then slices may be chiseled from the sides of this until a cuneiform space representing a wedge of the requisite size is removed. Having removed the wedge of bone, the ends of the bone are put into position — the periosteum is sutured with gut — the wound closed — and the limb put up in an immovable splint. Comment. — In this, as in the other forms of osteotomy, additional means may be used for holding the divided ends of the bone in place, besides the special form of splint — such as wiring, pegging, suturing, and other devices mentioned under operations for ununited fractures. THE OPERATIVE TREATMENT OF FRACTURES IN GENERAL. 1 Operations for ununited fractures resolve themselves, as far as the forms of the bones are concerned, into three classes — those for fractures of the long bones — of the short bones — and of the mixed bones. The general principles involved are the same in all classes. Fractures of some special bones require special treatment. 1 Much of what follows upon this subject is taken from a paper read by the author upon "The Operative Treatment of Fractures in General,'' before the surgeons of the Chicago, Hamilton, and Dayton Railway, at Dayton, Ohio; and before the New York Post-Graduate Clinical Society, and is here reproduced or modified by their courtesy. RESECTION FOR FRACTURED BONES. 215 The principles involved: — the placing of freshened ends of bones in good position, without too great tension, and without intervening soft parts — and the maintaining of these ends strictly in position by competent immobilizing splint. Following is a brief summary of the technic employed in the majority of cases; — exposure of ends of bones as nearly subperiosteally as possible — resection of the ends as nearly transversely as the nature of the fracture will permit — if the ends of the bones can be easily approximated and easily retained in position, place them in apposition, suture the periosteum, approximate the muscles by buried sutures, close the wound, and apply an immobilizing splint. If the ends are not likely to be easily kept in approximation (especiallv as the result of an oblique section), one of the methods of holding them in apposition (to be described below) may be resorted to — in addition to placing the ends in contact and applying a retentive form of apparatus. In operating, some form of tourniquet is usually applied. The site of operation is to be shaved. The position of patient, surgeon, and assistant will be determined by the special operation. The instruments used are those employed for Osteotomy (page 210). The subject of the Operative Treatment of Fractures may be considered under several headings: — (I) Operative Methods of Approximating and Fixing Ends of Fractured Bones — (2) Operative Treatment of Simple Frac- tures — (3) Bone Grafting, or Implantation — (4) Operative Treatment of Delayed Union, Non-union and Mal-union — (5) Operative Treatment of Compound, Comminuted, and Complicated Fractures — (6) Operative Treat- ment of Fractures Involving Joints, and of Fracture-dislocations — and (7) Operative Treatment of Separated Epiphyses. The results to be aimed at in fracture-treatment are — union without deformity — without impairment of function of limb — and with as limited loss of time and usefulness as possible. To summarize the status of fracture-treatment, it may be said that the present treatment of fractures is in a transitional stage — and is now in the act of passing from the routine, hard-and-fast, prolonged splinting, which was in common use until a very short time ago — to the more rational methods of the present time, which include the use of early passive movements and massage in conjunction with removable splints, and the practice of open incision in appropriate cases. Various methods are in use for bringing the ends of fractured bones into apposition and holding them in place until bony union has occurred. The best form of internal fixation for the special case cannot be known in advance of the actual exposure of the parts involved. The technic of exposing the ends of the bones, however, does not materially differ, no matter what form of internal fixation be employed — and this technic, therefore, will be first briefly described — and then will be enumerated the most generally used methods resorted to for holding the broken bones together. OPERATION FOR RECENT OR UNUNITED FRACTURE BY RESECTION OF ENDS OF BONES, WITH RETENTION OF COAPTATED ENDS BY IMMOBILIZING SPLINTS. Description. — The ends of the bones are exposed and excised, and the freshened ends are then brought into contact and held in apposition by a splint or a plaster cast. 2l6 OPERATIONS UPON THE BONES. Take, fur an example of the technic, the operation for the repair of a simple recent fracture by resection of the ends of the bones, with retention of the coaptated ends by immobilizing splints — where no form of mechanical fixation is used other than that secured by placing the ends of the sawn bones in proper relation and holding them in such relation by splints. (And what is here said of recent fractures applies also to ununited fractures.) In many cases of recent fracture the nature of the broken ends might be such as not to require their resection prior to the application of the special form of internal fixation. Operation. — Hav- ing exsanguinated the limb and applied a tourniquet, an inci- sion, sufficiently free to allow of protrusion of the ends of the bones, is made in the long axis of the limb, directly over the ends of the bones — and placed so as to give free access by the most direct and safest route to the involved site. The skin and fascia are divided — the mus- cles are separated in their intermuscular planes and retracted — or, if separation of the muscles in their planes be impossible, they are divided as nearly in the direction of their fibers as possible. Important vessels and nerves are carefully avoided, being retracted to one side. The wound is made fully large and the lateral retraction of the soft parts sufficient to make the necessary manipulations possible without adding to the traumatism. The ends of the bones are fully exposed and entirely freed of all tissue which may intervene between the fragments, whether normal or cicatricial. As the ends of the bones are approached, care is taken to avoid injuring the periosteum — which should be split longitudinally and freed circumferentially from the ends of the bones, without otherwise severing its connection, and should be raised without separation of overlying muscle, that is, as a musculo- periosteal covering. The end of each bone is dealt with in turn, and, after being thoroughly freed, is, where possible, protruded through the wound, the limb being bent at an angle for this purpose and the soft parts well retracted, the periosteum being carefully peeled back during this step. A minimum slice of bone is now removed from the end of each bone, simply enough to insure a fresh, raw surface upon each. If the bones have been protruded, this section is generally best made with a butcher's saw. If the ends have not been protruded through the wound, after they have been well freed, it is best to slip a chain or Gigli saw between the bone and the periosteum and thus make the section. The section may also be made, though generally less satisfactorily, with a chisel. The direction of the section will depend largely upon the nature of the ends of the bone; — if a rather transverse fracture, the C D -I. — Operations for Ununited Frac- tures by Simple Section: — A, B, Simple transverse fracture, followed by transverse section of bones; C, D, Irregularly trans- verse fracture, followed by section of bone parallel with fractures. SUTURING FOR FRACTURED BONES. 217 section is made transversely; — if a very oblique fracture, the section is made obliquely (Figs. 170-173, A, B, C, D; and Figs. 174-177, A, B, C, D). Whether the section be made transversely or obliquely, the section is so planned as to leave a limb in correct position, as to its axis and as to its rotation, and is so made as to secure two parallel surfaces for contact. An exception to this is where some special form of section is made, as when the bones are so sawed as to have an angularity of one fit into a depression of another, producing the mortising effect — the great principle being that the ends of the bones should be cut so as to fit each other. A transverse section of the bones is always preferable, unless involving too great a sac- rifice of length. The ends are now approx- imated in the position in which the bones will re- main, and are held in this position during the re- mainder of the operation and until the permanent splint be applied. The periosteum is sutured with gut. The muscles are brought together with buried gut sutures. The outer wound is closed in the usual way. The limb is then placed in a permanent splint, or in a plaster cast, with extreme care, so steady- ing the parts during the dressing that the ends of the bones remain undisturbed. Where the case is one of mal-union, either the ends of the mal-united bones are excised, or the badly united ends are sawn or chiseled apart, after which, in either case, the ends are treated as in cases of non-union. Comment. — (i) The operation is, practically, that of osteotomy by the open method. (2) In a recent case, the after-treatment is that of a compound fracture, with the limb put up in a position to relax the pull on the fractured ends. (3) In old cases where bands of fascia, or tendons, are apt to draw the ends out of place, these should be divided. (4) Where it seems likely that the ends of the bones will tend to displacement, especially in such cases as the femur, a process of mortising may be carried out in fashioning the ends of the bones for approximation. -II. — Operations for Ununited Fractures by Simple Section: — A, B, Wedge-shaped and C, D, rectangular fracture, followed by section of bone par- allel with fracture. OPERATION FOR RECENT OR UNUNITED FRACTURE BY SUTURING OF ENDS OF BONES, WITH OR WITHOUT RESECTION. Description. — Instead of simple approximation of the broken ends and their retention by splints applied to the outer surfaces of the limb, some form of mechanical device may be also used to hold together the ends of the bones themselves. In such cases, having exposed the site of fracture by, approx- 2l8 OPERATIONS UPON THE BONES. imately, such steps as those just described, the broken ends of the bone are now to be brought into apposition and fixed by some special method selected by the surgeon — of which the following are the chief procedures in use — it being understood that these methods apply equally, whether the case be a recent fracture, an old fracture with pseudarthrosis, a non-union, a mal-union, a simple fracture, or a compound fracture — and whether the form of fixation be employed after the ends of the bone have been resected, or without resection. In the method about to be described, in addition to the retention of the coaptated ends of the bones by splints, the ends are previously drilled and held in contact by some form of suturing. In the case of new fractures, where the ends are left so shaped as likely to remain in position when sutured, resection of the ends of the bones need not be done — otherwise the ends should be resected. In all cases of old fracture the ends of the bones are always resected, so as to present freshened surfaces. As Fig. 178. — Method of Drilling Bone for Wiring: — A, Bone-holding forceps; B, hand-drill. the chief dependence is in the ultimate bony union between the fractured or resected ends, and as the chief function of the retaining substance is tem- porarily to hold the ends in position until union is sufficiently advanced to fix the ends of the bones firmly and permanently, it is unquestionably best to use the material which, while fulfilling that temporary office, will then disappear of its own accord and give no future trouble — and, therefore, kangaroo tendon, or heavy, 30-40-day chromic gut, is the ideal material for this purpose. Of the soft materials, silk and silkworm gut are also used. Of the non-absorbable metallic substances used, silver wire is the most frequently employed. The wire should be of different sizes for different bones. It should be of pure silver, or it will not stand as much strain on twisting. It should be cut into lengths and straightened. Each piece should be heated to a dull red heat in the flame just before using (in order to make it much more pliable and less apt to break) — then cooled and dropped into sterile solution ready for use. Some- times wire is used with the intention that it should only remain in temporarily and be removed when its usefulness is at an end — -but generally it is hoped SUTURING FOR FRACTURED BONES. 219 that it will remain in permanently — the ends of the wire, therefore, are treated according to the views entertained. The general method of applying the suture, no matter what the material, is the same. Operation. — The steps of the operation are the same, in all respects, as for resection with retention by splints — up to the exposure and clearing of the ends of the bones — after which the technic will differ, dependent upon whether the bones are resected or not; — (a) Suturing of the bones without resection: — The ends of the bones are grasped and steadied by some special foim of bone-holding forceps, while holes for the passage of wire are drilled — sufficient in number to furnish the desired strength and so planned in position as to retain the normal axis of the bone (Fig. 178). The holes may be drilled and the suture passed in several ways. Where the fracture is practically a transverse division of the bone, the drill-holes are usually made to pass through one wall of the upper and the corresponding wall of the lower fragment, the suture thus passing through but a small portion of the medulla of the bone (Figs. 179-181, A, B, C). In the case of an oblique fracture, Figs. 179-181. — Operations for Un- united Fractures by Section \nd Sutur- ing : — I. — In transverse fractures; — A, Single suture through both walls of each bone; B, Double suture through both walls of each bone; C, Sutures passed through single wall of each end. These forms may be used without section of bone. C 1 m Figs. 1S2-1S4. — Operations for Un- united Fractures by Section and Suturing: — II. — In oblique fractures; — A, Double sutures through both walls of each end, in axis of bone (not advisable); B, Same, crossing fracture at right angle (advisable); C, Loop of suture carried through drill-hole, and free ends brought around bone and through loop and twisted. These forms may be used without section of bone. the holes may be drilled and the suture passed in the same way — or the fragments may be held in position and the holes drilled through opposite walls and the intervening medullary substance (Figs. 182-184). In the case of wire, the ends, in either of the methods above mentioned, may then be twisted, cut short, and pressed into the periosteum and bone — or may be twisted long and brought out of the wound (Figs. 185-187 and 188-190). In both methods the periosteum is pierced by the suture, though elsewhere it is preserved as intact as possible upon the bones. In previously drilling the holes for the passage of the suture, the most useful instrument to have at hand, 220 OPERATIONS UPON THE BONES. next to one of the many forms of bone-drill, is a pair of stout bone-holding forceps with fenestrated blades — by which the bone is firmly held and through the fenestrated openings of which the drill is applied, thus steadying both the bone and the drill-point (Fig. 178). (b) Wiring of the bones after resection: — The resection of the ends of the bones is accomplished just as in the operation for ununited fracture by resection of the ends of the bones, with retention of the coaptated ends by immobilizing splints (page 215). The ends of the bones are then drawn back into their musculo-periosteal sheaths — and the ends are then sutured as in (a) above. Following the approximation of the ends of the bones, the periosteum is sutured with gut — the muscles are brought together with buried gut sutures — the outside wound closed as usual — and Figs. 185-187. — Operations for Un- united Fractures by Section and Wir- ing: — III. — By simple loop-ligatures: — A, By double loops around bone at right angle to axis of bone; B, Double loops at right angle to line of oblique fracture; C, Double loops, as in A, reinforced by lateral wire- loops. These forms may be adopted without section of bone. Figs. 188-190. — Operations for Ununited Fractures by Section and Wiring: — IV. — By frame-ligature; A, B, C, First, second, and third stages of the frame-ligature. an immobilizing splint applied. The wire is not expected to be removed when buried, — when left long, it is subsequently (after firm union) untwisted and drawn out, to accomplish which it is sometimes necessary to expose the parts by incision down to the bone. Comment. — The drill-holes should be a little larger than the silver wire used. The wire should be fairly heavy. The holes are drilled from 8 mm. to 1.3 cm. (I to \ inch) from the ends of the bones, penetrating obliquely if but one wall of the upper and one wall of the lower fragment be drilled — and penetrating at a right angle to the surface, if the drilling pass transversely through opposite walls. In drilling for oblique fracture, the suture should pass at a right angle to the line of fracture. METHODS OF FIXING ENDS OF FRACTURED BONES. 221 OTHER OPERATIVE METHODS OF APPROXIMATING AND FIXING ENDS OF FRACTURED BONES. In the various forms of mechanically uniting ununited bones, about to be described, the preliminary steps of exposing and preparing the ends of the bones for coaptation, whether resection has been done or not, are the same as those given in the preceding operations. Union of Fractured Bone by Metallic Nails or Ivory Pegs. — While the ends of the bones are held in firm contact in the grip of strong, fenestrated, bone-holding forceps, plated nails are so driven as to bind both ends — or ivory pegs are inserted through previously drilled holes. The nails usually protrude through the skin and are subsequently withdrawn (in about two weeks) — whereas ivory pegs are generally cut flush with the bone and are left, in the hope that they will become incorporated with the osseous tissue (or they, too, may be left long and be withdrawn). If the fracture or section be transverse, the nails or pegs are put in obliquely, passing from without through the proximal wall of the upper fragment, through the medullary Fig. 191. — Uniting Fractured or Re- sected Bone by Nailing. Fig. 192. — Uniting Fractured or Re- sected Bone by Pegging. substance, and into the wall of the lower fragment, from within outward. Two or more nails or pegs are generally inserted, passing in different direc- tions (Figs. 191 and 192). If the section, or fracture, be oblique, the nails are put in at a right angle to the surface of bone and pass transversely through. As little damage as possible is done to the periosteum. The muscles are brought together by buried gut sutures — the wound closed — and the limb immobilized. 2 22 OPERATIONS UPON THE BONES. Union of Fractured Bone by Metallic Screws. — The technic is here very similar to that in the lust proceeding, except that plated screws replace the nails. The holes for the screws which bind the two fragments are first drilled of a slightly smaller size than the diameter of the screws — which are driven home with a screw-driver until their heads are flush with the periosteum. It is necessary to have a large variety of screws on hand, especially as to length. They may remain permanently in situ — or may be cut down upon and unscrewed. Union of Fractured Bone by Metallic Plates and Screws. — Following the technic of Steinbach, silver plates of various sizes and shapes are used, secured in position by small galvanized steel screws — those, for example, for the tibia, their most useful field of application, are 6 mm. (\ inch) thick, g cm. (T>h inches) long, and 8 cm. (j| inches) wide, and with screw-holes 1.2 cm. (| inch) apart. Having retracted the soft parts without disturbing the periosteum, the screw-holes are first drilled a size slightly smaller than the screws, some into the upper fragment, some into the lower, and the drilling is continued until loss of substance shows that the medullary cavity has been entered, when the screws are driven firmly into place by means of a screw- driver. When bony union is solid, the plate is generally cut down upon and Figs. 193 and 194. — Uniting Fractured or Resected Bone by Screwing: — Screws may be used alone — or in metallic plates, as shown in diagram to left. the screws unscrewed, and all removed. The plate is sometimes left per- manently in situ (Figs. 193 and 194). Union of Fractured Bone with Metallic or Bone Ferrules. — Rings of thin metal, of some width, or of bone, are slipped over the ends of the broken bone — especiallv in the case of oblique fractures. The metallic ferrule is difficult to remove, should it become necessary, even if split on one side. The bone ferrule becomes absorbed. METHODS OF FIXING ENDS OF FRACTURED BONES. 223 Union of Ununited Fracture by Parkhill's Clamp. — The fragments of bone are here held together by means of a special form of clamp consisting of four long steel screw-pins and an interlocking mechanism. The ends of the bones are exposed and freed in the ordinary manner — and resected, if necessary. Two holes are drilled in the long axis of each fragment, in direct line with each other. Four long steel screw-pins are then screwed into these holes by means of a clock-key attachment — after which the "wings" of the instrument are adjusted. While the ends of the bones are held in accurate apposition and care taken that the proper axis of the bone is secured, the two fragments are clamped together in the special manner of the instrument. The muscles and other soft parts are then adjusted about the screws of the clamp, which projects without the wound. The dressing is then applied — Fig. 195. — Operation for Fractured or Resected Bone by Parkhill's Bone- clamp: — Surface view of clamp in position. Fig. 196. — Operation for Fractured or Resected Bone by Parkhill's Bone- clamp: — Side view of clamp in position. and the pins of the clamp not removed for from four to six weeks (Figs. 195 and 196). Ligation of Bone. — One or more pieces of wire are passed around the fractured portion of bone, either at a right angle to the axis of the bone or at a right angle to the line of fracture. These are twisted, cut short, and 224 OPERATIONS UPON THE BONES. buried. The bone may be notched to aid in holding the wire in place. Longi- tudinal Loops may unite the circumferential wire bands (Figs. 185-187 ). Combined Ligature and Suture. — A hole is drilled through the frag- ments at a right angle to their line of fracture — a loop of wire is passed through, given a half-turn in the center, and the two ends passed around the sides of the bone and through the loop and twisted (Fig. 184, C). Frame Ligature of Bone.— Drill two holes through the fragments, in the long axis of the bone — pass the free ends of a wire loop through the holes — pass the loop over the free ends and draw tight — then bring the -free ends around to the holes through which the looped end originally passed and carry them under the wires emerging from those holes and twist them together in the long axis of the bone (Figs. 188-190). Intramedullary Pegging. — Pegs of ivory, or of fresh or decalcified bone, are lightly driven into the medullary canal of one bone, and the ends of the fractured bone so displaced, temporarily, as to enable the medullary cavity of the opposite fragment to be slipped over the opposite end of the peg (Figs. 197 and 198). Where there has been a loss of substance of bone Figs. 197 and 198. — Operation for Fractured or Resected Bone by Intra- medullary Pegging: — A, Peg is seen in medullary cavity of lower bone, and about to be introduced into that of upper; B, Peri- osteum is being sutured along margins of bone. Fig. 199. — Operation jor Fractured or Resected Bone by Intramedullary Pegging : — Where part of one bone has been excised and periosteum is being sutured around peg. and the periosteum corresponding to the absent bone is preserved, this has been sutured over the bone peg with success, especially in the young (Fig. 199). Summary. — In summing up the subject of the mechanical fastening of the ends of broken bones, it will be seen that the uniting substance may be OPERATIVE TREATMENT OF SIMPLE FRACTURES. 225 buried in tissues with the hope that it will remain quiescent — or, if suitable for absorption, that it will be absorbed — while, on the other hand, substances are sometimes put in temporarily, with the purpose of removing them when they have accomplished their object and the parts have become solidly united. The best method can only be determined when the parts are exposed — and the best method of internal fixation is that method which immobilizes most efficiently. The guide for the selection of the special form of this internal fixation will depend, in part, upon the special bone involved and the nature of the fracture — and, in part, upon the views and habits of the surgeon as to retentive appliances. The judgment of the writer would be distinctly in favor of kangaroo tendon, or 30-40-day chromic gut — as being an absorbable substance, and as being a method of wider range of applicability to the various fractures of the body than any other. The strength of either of these sub- stances is sufficient to retain the ends of fractured bones in contact the necessary length of time, if properly handled— at the end of which time absorption usually renders any further dealing with the wound unnecessary. If the limb be carefully held by an assistant assigned to that duty alone, so that the tendon or gut is not put upon the stretch before the limb is secured in its splint, these substances would probably never. stretch to an extent harmful to the interests of the fracture, as claimed — and which has been an objection raised by some. OPERATIVE TREATMENT OF SIMPLE FRACTURES. Of the various applications of operative treatment to fractures, the question of the operative treatment of simple fractures is probably the most interesting at the present time, for not only is the field for the application of operative interference greater in simple fractures than in any other form of fracture, or in any result of fracture, but the practice itself is comparatively new, and the opinion of the profession at large has not yet been definitely formulated as to the full scope of the technic and the variety of cases to which it should be applied. As matters stand at present, the number of surgeons who are operating in cases of simple fracture seems to be steadily increasing. Compound or open fractures have always received some form of operative treatment, if only to the extent of cleaning the site and putting the parts into favorable position for repair, and comminuted and complicated fractures have frequently received such treatment, so that the application of a somewhat more radical operative treatment than heretofore to these classes of cases is not so distinctly new — but the treatment of simple or closed fractures is a new field brought up in surgery during comparatively recent years. The argument that the operative treatment of simple fractures converts every simple fracture into a compound fracture does not carry with it the same gravity as formerly, for in the vast majority of cases such a procedure carried out with thorough asepsis is accompanied by comparatively little risk. It may be said that the way to the operative treatment of simple fractures was paved by the operations of osteotomy, by the subcutaneous and open methods, for all such operations made compound fractures of the cases, and results in such instances nearly invariably come to a satisfactory conclusion without untoward complications. *The special objects accomplished by the open operation in fractures, in those cases where it is indicated, are the following: — ends of bones may be accurately approximated by fingers and instruments while in view and acces- l 5 ' 226 OPERATIONS UPON THE BONES. sible in the field; — these ends may be permanently fixed in normal position by whatever means are chosen; — some fractures which cannot be reduced at all by the ordinary methods can be reduced by open operation; — many fractures which are reducible by the ordinary methods only with difficulty and uncer- tainty can be reduced with ease and accuracy; — the ends of many fractured bones not capable of being retained in position by postural treatment are easily retained by internal fixation; — ankylosis is often avoided in fractures near to and involving joints; — partially separated and detached periosteum may be replaced, and sutured if necessary; — a correct diagnosis is possible; — all tissues intervening between the ends of the bones can be removed and placed in normal positions; — clots of blood may be gotten rid of; — injury done to the neighboring structures may be repaired; especially torn nerves may be sutured; compressed nerves freed of their pressure; divided vessels ligated; lacerated muscles repaired; and spiculae of detached bone removed; — inflamed processes are often reduced; — the amount of callus is generally lessened; — shortening is prevented; — deformity is less frequent; — the period of disability is considered by some surgeons to be lessened by one-third; — and a gain in the range of function is often secured. The open method of treatment is especially applicable to many compound fractures, comminuted and com- plicated fractures, old fractures with deformity, cases of non-union, and fracture-dislocations. These results, it must be admitted, are weighty con- siderations, and it must also be admitted that some of these objects cannot be accomplished at all by the ordinary methods of treatment, and that many of those which are accomplished by the usual methods are accomplished more by accident than by intelligent design, for the ordinary method of treating most fractures is, both figuratively and literally, by working very much in the dark, as to both sight and touch. Briefly, the object of operative treatment of fractures is, in the language of Van Werden, "to bring into apposition, and hold in contact by direct temporary mechanical measures, the different anatomical constituents of the wound until the process of repair throughout is complete." Operative treatment is fully warranted, therefore, and should be unhes- itatingly undertaken where the complete reduction of the fracture and the retention of the ends of the bone in good apposition by simpler means are impossible; where complications otherwise irremediable exist; and is further warranted whenever it is considered that a distinct gain in time to the patient and increase in function of the part can be expected from open operation. The compound fracture is here made through a region aseptically ready for it and but slightly apt to resent it. In operating upon fractures immediately after the accident, the soft parts offer no great opposition to extension and replacement, but after a few days have elapsed, physiological shrinkage may offer so much opposition to extension and replacement as to be relieved only by flexing the contiguous joints or by division of tendons and fascia. Having determined upon operation, the general manner of exposing the parts is similar in technic to that already described under Operative Methods of Approximating and Fixing Ends of Fractured Bones, and will not be given in further detail here. After having exposed the ends, the interlockable nature of the fragments may be such as to make any other form of fixation other than simply causing the ends to interlock, unnecessary. Some form of mechanical fixation, however, is generally done; the writer would prefer, as indicated above, kan- garoo tendon or chromic gut in the great majority of cases. The operative treatment of simple fractures should be carried out imme- BONE-GRAFTING OR BONE-IMPLANTATION. 227 diately after injury, and if this cannot be done, some surgeons wait until a week has elapsed. Where irregularly fractured ends can be interlocked in their normal relation- ship before being sutured, their holding together is more firm than if they had been sawed, and the full length of the limb is maintained. It has only been since the introduction of the open method of treating simple fractures that the difficulties in their reduction, up to that time con- cealed by unbroken skin, have been so clearly demonstrated. Of these several difficulties the greatest is caused by the shortening of all the soft parts in the region near the break, which, in turn, is caused by inflammatory action, hemorrhage into the tissues, and by contraction of the tissues themselves — for after the fracture there is no resistance to the contraction of the soft parts, as compared to their normal stretched condition. The bones are thus pulled together, and, where the nature of the fracture makes it possible, causes an overriding of the ends. This condition of contraction is prevented when internal fixation of the fragments has been satisfactorily accomplished. BONE-GRAFTING OR BONE-IMPLANTATION. Bone-grafting consists of the transplantation of living bone, or periosteum, from the same or different individual, or from an animal, into the defect to be repaired. There is another group of substances which cannot be strictly called bone-grafts, but which are rather to be regarded — either as "scaffoldings," or "trellis-works," along which bone-material may grow in the process of repair — or as irritants which serve to provoke this osteoplastic process. Such are: dead bone, variously prepared and rendered aseptic — bone-plates — bone- ferrules — calcined bone — decalcified bone — and even fresh bone with its periosteum and endosteum scraped off — and bone-chips. It has not been absolutely decided whether the living graft ever remains as such and grows — or whether it does not always disappear after exciting new bone-formation. It is held by some that the implanted bone lives — by others, and this is more probable, that it does not live as normal bone. Valan holds that the center of the graft dies, but that the periphery becomes fused with the living bone and lives. In still other cases it neither grows itself nor excites new bone-formation — but, in such cases, and where the operation and its subsequent course are aseptic, it may cause the formation of firm fibrous tissue which is almost as serviceable as bone. The return to its site of the button of bone temporarily removed by tre- phining is one form of bone-implantation, where the trephining may be regarded as a deliberate fracture or solution of bony continuity made by the surgeon for some specific object. An osteoplastic amputation, such, for example, as those about the lower extremity, is an illustration of bone-trans- plantation designedly made in the course of an operation. Of the artificially prepared substitutes for bone, calcined bone, either in the form of coarse granular powder or in the form of plates, would seem to be an approximate physiological substitute for bone, supplying, as it does, the lime salts. It is easily prepared — easily sterilized — readily fills the cavities — and is so porous that it is gradually replaced by bone which grows over it and through its interstices as over an arbor. The calcined bone-plates are made from the cancellated bone of the scapula of calves. It is held by Valan that calcined bone is better to use than decalcified bone — because the resulting bone-tissue is stronger. 228 OPERATIONS UPON THE BONES. The chief indication for hone-grafting, or bone-implantation, is to fill in the interval left by lost bone in such conditions as compound or comminuted fractures, where the bone is very much fragmented and the pieces are nearly or entirely detached, or seem unlikely to live; in mal-union, necessitating opera- tion, with loss of bone; to restore the continuity of long bones where all or a considerable portion of the shaft is lost; and in deformities, to replace destroyed bone. There are several varieties of bone-grafts: (I) Detached portions of human bone (from the same or another individual), living at the time of detachment from the donor, and implantation into defect of recipient. (2) Detached portions of animal bone, living at the time of detachment from donor and implantation into defect of recipient. (3) Portions of human bone adherent by periosteum, soft parts, and vascular supply to an adjacent part of the donor's body (as in fractures and deformities about the face). (4) Portions of animal bone adherent by periosteum, soft parts, and vascular supply tn an adjacent part of the donor's body. There are now a sufficient number of authentic cases of extensive successful bone-grafting from the lower animals to man to warrant the expectation that the technic of this operation will be rapidly elaborated, and the field of its usefulness greatly expanded. The manner of exposing the site to be grafted is the same as that described under the operations for exposing the ends of fractured bones for the purpose of applying internal fixation; or a preexisting wound, or other circumstances, may determine the method of exposure. Where the bony defect is of a limited nature, this defect may often be repaired from the adjacent bone of the individual himself — by clipping off portions of the bone and periosteum and wedging them in between the ends of the bone by means of an osteotome or chisel. If small pieces of bone can be chipped off from the ends of the broken bone and packed into a tube of periosteum connecting these ends, there is an especially favorable outlook for bone-formation. If a periosteal tube be absent, the soft parts may be brought around the grafts and held in place by catgut sutures. Some surgeons prefer human and some animal grafts. The latter must, of course, be much more generally available. The animal graft may be implanted as a solid piece of the required length, or a piece of the proper length may be split longitudinally into several small pieces and these inserted into the gap, with their periosteum adherent. Where a graft fails to take in the gap between the ends of one of the bones in a double-bone limb, a portion of the second bone should, in appropriate cases, be excised to correspond with the opposite gap, thus making both bones of the same length. This, however, should only be done as a last resort. OPERATIONS FOR DELAYED UNION, NON-UNION, AND MAL-UNION OF FRACTURES. Delayed Union. — Fractures which have resisted the ordinary attempt to bring about union by the usual form of procedure — as carried out by those who are in the habit of submitting the great majority of fractures to splinting and. its accessories — are usually, and generally rightly, subjected to a second treatment by the same means, with especial attention to constitutional indica tions, and possibly more active out-of-door life. Where, on the other hand, de- layed unions are treated by those who more frequently adopt the open operation in even simple fractures, they will probably be subjected to operative treatment upon their first failure to unite — in which cases they will come, as far as OPERATIONS FOR DELAYED UNION OF FRACTURES. 229 operative technic is concerned, within the following category, which they resemble in all but their duration. Non-union. — The two most usual methods of treating non-union, after having exposed the parts, are, first, to resect the ends, bring the bones into apposition, and hold them in this position by plaster or other splinting, or, secondly, after having resected the ends, to bring and hold the bones together by some form of internal fixation, if possible, preferably by kangaroo-tendon or chromic gut, or by silver wire; or, where the resulting gap is too great in the involved bone of a double-bone limb, by bone-grafting. The technic of exposure is the same as that given under the operative method of approxi- mating and fixing the ends of fractured bones. In addition to the technic there given, the callus and all inter-fragmentary tissues are to be removed by knife, scissors, and bone gouge. Where a condition of pseudarthrosis exists, the structures entering into the formation of the false joint are all thoroughly cleared away. The ends of the bone are then sawed off squarely or shaped so as to hold more firmly when brought into apposition, orotherwi>e resected, as indicated by the special form of fracture, or, in some cases, may be simply scraped with bone gouge. The ends are then brought together by the form of internal fixation selected, or the intervening gap filled with a bone- graft, as just indicated. The periosteum, if preserved, is sutured with catgut, the muscles separated in the approach are brought together by buried gut sutures, if need be, the wound is closed without drainage, and the limb put up in its splint. Mal-union. — -Occurs most usually in the upper third of the femur or middle of the humerus. The deformity may be simply a shortening of the limb from overlapping of the fragments, the limb remaining in its normal axis; or an angularity may exist, which is more serious when near a joint. The treatment for mal-union should invariably be by open osteotomy; where a simple transverse, linear osteotomy, or cuneiform osteotomy, as indicated, should be done; or, if marked, the deformed site of fracture may be excised. Where it is possible to do so, the bone section should be made as subperios- teally as the condition of the original torn periosteum permits, that is, a longitudinal incision should be made through the periosteum over the bone, during the latter steps of the approach to the bone; beginning well over the sound periosteum of the upper bone, and extending well over that of the lower bone, and the two lips of periosteum peeled back from the bone, at the site where the section is to be made, until the entire circumference of the bone is exposed, and then the bone, bared of periosteum, is to be divided by linear or cuneiform osteotomy. In this way the periosteum is left intact to materially aid in the regenerative process of callus formation. If the bone of a single- bone limb, or appropriate bones of head or trunk, have been thus divided, the ends should be drilled and brought together with kangaroo tendon, or chromic gut, which, when the periosteum has been first temporarily removed from the bone at the site, is inserted through the bone, but not through the periosteum, so that the periosteum is allowed to fall back in place, and overlie the suture knots. If, on the other hand, the bone is one of the bones in a double-bone limb, if a tangible piece with parallel ends be removed, the ends left after the incision cannot, of course, be approximated and sutured (owing to the fact that the length of the limb or part is maintained by the other bone), and, in these cases, the site has either to be put up with the ends of the involved bone apart, or, which is probably better, the empty casing of periosteum can be filled with either a single bone-graft or bone-grafts, and its lips sutured over such graft or grafts. Even the empty casing of the periosteum, although 230 OPERATIONS UPON THE BONES. partly collapsed by the pressure of soft parts, would probably produce bone which would fill in the gap between the ends. Excision of a corresponding length of the opposite bone in the double-bone limbs is sometimes done, but is not so desirable. In any of these cases the limb is subsequently treated as one with a compound fracture made under favorable circumstances. Under no circumstances should the deformity of a badly united fracture be corrected by osteoclasis, for all methods of bone-breaking are crude, uncertain, dangerous to neighboring parts, and are distinctly unsurgical — nor is the subcutaneous division by saw, or osteotome, of the bone or bones involved in the mal-union warrantable. OPERATIVE TREATMENT OF COMPOUND, COMMINUTED, AND COM- PLICATED FRACTURES. Compound Fractures. — The progressive advance in the treatment of compound fractures is one of the most marked illustrations of the evolution of conservative surgery. At one period a very large percentage of compound fractures came to amputation — and in many hospitals it was the accepted rule to amputate all limbs above the site of a compound fracture involving a large joint. Then followed a period when conservatism was shown by saving the limb at the expense of shortening it, by making an excision at the site of com- pound fracture, including a joint, if necessary. At the present time still further conservatism is accomplished in many cases by neither amputation nor excision, but by freely exposing the parts by operation, correcting the damage done to neighboring soft structures, thoroughly disinfecting the part with antiseptic irrigation, followed by aseptic douching, treating the ends of the bone as indicated by the conditions found, carrying out some method of internal fixation of broken ends, and putting the limb in an open or fenestrated splint. Owing to the uncertainty of asepsis, drainage should generally be instituted at first. It should be maintained as long as the necessity for it exists, but can frequently be dispensed with in two or three days. The technic applies almost as forcibly to compound fractures with the smallest puncture, as to those with larger external wounds. The temptation may be very great to disinfect exter- nally, and to try to disinfect internally, an insignificant-looking puncture of a compound fracture and hermetically seal it with collodion, but subsequent septic developments will often cause regret. When the parts are exposed, the extent and nature of the damage may indicate the advisability of excision. Comminuted Fractures. — Comminution in a fracture may not be recog- nized by ordinary manipulation, and may only be demonstrated by .v-raying. Even when present, especially where simple and not extensive, it may not par- ticularly complicate the fracture. In such cases ordinary, non-operative treat- ment of the fracture may be carried out. But where the comminution is more extensive or more complicated, or even where, when simple, comminution prevents the exact approximation and retention of the bone-ends in position, the involved site should be unhesitatingly cut down upon and dealt with as the needs of the special case require. The fragments can often be tied together or sutured to one end of the main bone with chromic gut. Large fragments whose periosteum has been entirely torn off are not so likely to unite, but small chips of bone will. A bond of union by periosteum with the main bone, or with a larger fragment, is very useful in bringing about bony connection. Pieces of bone will frequently live even when taken out of the wound, disin- fected and replaced, and often even if they have been reversed in position and order. Entirely detached bone can, therefore, be removed temporarily, disin- OPERATIVE TREATMENT OF FRACTURE DISLOCATIONS. 23 1 fected in 2\ per cent, carbolic solution, or 1-1000 bichloride; rinsed in warm, sterile, normal salt solution, in which they should stay until needed, and returned to their normal position, where, if possible, they should be secured to a neighboring bone by gut suture. If much periosteum has been lost, the bone should be covered with soft connective tissue and muscles (which may be held about the bone with buried gut sutures). In cases of extensive comminution, excision of the bone-ends may be called for, followed by internal fixation of the ends -r by bone-grafting. Complicated Fractures. — One of the strongest arguments in favor of the more general treatment of fractures by operative measures followed by internal fixation is that open incision, which gives free access to the fracture, also gives full opportunity to rectify, or treat as indicated, the special complication of the case, which complication may be more important than the fracture itself. So that, apart from the general operative technic of exposing, approximating, and fixing the bone fragments, already described, the special treatment of the case becomes the treatment of the predominating complications, whatever they may be, whether involving arteries, veins, nerves, viscera, or other soft structures, and their line of treatment will be determined by the structure involved and the nature of its injury. OPERATIVE TREATMENT OF FRACTURES INVOLVING JOINTS AND OF FRACTURE DISLOCATIONS. Fractures Involving Joints. — The difficulties in fractures involving joints treated by non-operative methods are, first, the almost impossibility of getting the fragments into normal position; secondly, the keeping of them in place; and, thirdly, the prevention of deformity and limited movement. While the certainty of accomplishing these desirable ends does not by any means necessarily follow operative treatment, yet the chance of accomplishing them by open incision is much greater than without. When, therefore, examination under anesthesia and with the x-ray (which should always be used in these cases, and are very serviceable in all cases) show that the broken bones will not stay in very accurate apposition when once reduced, the fractured ends should be cut down upon and united by internal fixation (especially here by some absorbable suture) ; the joint cleared of effused blood and inflammatory products; the wound temporarily drained, and the limb put up in a splint. It must be remembered that union has to be unusually accurate in these cases, as the slightest irregularity upon the articular surface of a bone is apt to lead to impaired joint movement. By this course of treat- ment passive movement and massage are also made possible earlier, with the consequent likelihood of the prevention of both extra- and intra-articular adhesions, and, therefore, an increased range of functioning. Much of what was said under extra-articular compound fractures also applies to intra-articular compound fractures. Formerly, many compound fractures involving joints cost individuals the amputation of the limb above or at the site of fracture. Then, as a great advance upon this destructive sur- gery, immediate excision of the joint was generally done, in order to get a mov- able joint and avoid sepsis. Now, one asepticizes the involved regions, and is thoroughly conservative, and though he may have to excise later, generally a shorter excision (less loss of bone) can usually be accomplished secondarily than primarily. It is to be remembered that while the skin wound of a compound fracture 232 OPERATIONS UPON THE BONES. may extend into the joint, the fracture itself may not do so, which somewhat simplifies matters. Dislocations Complicating Fractures. — When a fracture is not imme- diately near a dislocated joint, and where operative treatment is not indicated, reduce the dislocation first (putting up the broken limb in temporary splints, so as to be able to manipulate it somewhat more freely), then reduce the fracture and so splint the limb, incasing it as a whole, that passive movements of the joint may be begun early. When the fracture is near the joint, the distal bone was formerly put up in line with the proximal one, and when the fracture was well, the dislocation was reduced, but now the more rational technic is to expose the parts by operation, and first to reduce the dislocation and suture up the capsule, and then approxi- mate the ends of the broken bone by internal fixation. The limb is then put up in a splint and massage begun early. OPERATIVE TREATMENT OF SEPARATED EPIPHYSES.. In attempting to reduce fractures of the epiphyses, wherever it is found that an exact alignment of the epiphysis with the shaft can not be obtained, or where obtained, it can not be maintained, some form of operation is indicated. It has been found that it is best, in operating upon separated epiphyses, to avoid the use of any mechanical means which penetrates the epiphyses and remains any length of time as an irritant (as, for example, a nail), for while an uninjured though detached epiphysis may retain its integrity for some weeks and then grow to the main bone when replaced, yet if, on the other hand, con- stantly irritated by this foreign body, it may either suppurate or undergo hyper- trophic overgrowth. The treatment of epiphyseal separation differs in many instances materially from the treatment of a fracture in the same locality, and especially is an accu- rate knowledge of the contiguous anatomy necessary in dealing with such cases. If operative treatment were done as a more systematic procedure in the treatment of such injuries, there would not be so many deformed limbs and joints. When deformity occurs from arrest of growth in one of the parallel bones of the double-bone limbs, conjugal chondrectomy (that is, excision of the con- jugal cartilage of the corresponding normal bone) should be done, if the age of the normal bone is not too great, namely, beyond its period of active growth. Epiphyseal separation occurs in a vastly larger number of cases among males than among females, and the separation of the epiphyses of the upper extremity is more frequent than of the lower. Separation of epiphyses occurs in the following order of frequency: Upper epiphysis of humerus, lower of radius, lower of femur, lower of tibia. ^c-Raying is of little or no assistance in the diagnosis of epiphyseal separation, as the epiphyses are transparent to these rays. The greatest diagnostic aid is gotten by manipulation under anesthesia. Operation, where the epiphysis cannot be certainly and satisfactorily manip- ulated into place, consists of exposure, followed by suturing the epiphyses to the shaft with tendon or gut, and, where the epiphysis is entirely or partially intra-capsular, of closure of the capsule. STIMSON'S OPERATION FOR FRACTURED PATELLA. 233 Fig. 200.— Operation for Fractured Patella by Stimson's Method of Mediate Suture : — A, Heavy silk suture (of mattress variety) passing through greater thickness of quadriceps extensor tendon, above, and ligamentum patellae, below; B, Chromic gut suture of torn capsule and fibro- periosteum. OPERATION FOR RECENT OR UNUNITED FRACTURE OF PATELLA BY SUTURING OF SOFT PARTS. stimson's METHOD. Description. — The margins of bone, after being cleared, and, if necessary, freshened, are held in position by a heavy silk suture-loop passed trans- versely through the quadriceps extensor tendon above, and the ligamentum patella. 1 below. Position. — Patient supine; limb fully extended. Surgeon on side of operation. Assistant opposite. Landmarks. — Contour of patella. Incision. — Median, in long axis of limb, with its center over center of patella and extending considerably above and below the patella but not passing into muscular tissue. Operation. — The incision extends through skin, fascia, prepatellar bursa, expansion of quadriceps extensor tendon, and periosteum directly to the patella bone. The soft parts are well retracted, so as to expose the entire extent of the transverse fracture (which is possible because of the length of the incision) (Fig. 200). The joint is irrigated to remove the clots. If the fracture be recent, no removal of fibrous tissue or bone is necessary. If old, each fragment is carefully seized with bone-holding forceps and steadied 234 OPERATIONS UPON THE BONES. in such a position as to render it accessible to the saw, and a thin slice of bone is then removed. A heavy silk ligature, threaded upon a curved needle, is now carried transversely through the ligamentum patella? near its apex, passing through about two-thirds of its width and thickness — then trans- versely through the quadriceps extensor tendon, near the upper border of the patella, also passing through about two-thirds of its width and thickness. While the fragments are held in close contact this ligature is tightly tied. The torn capsule on either side of the patella and the fibro-periosteum are sutured with chromic gut. The fibrous tissues overlying the patella, and divided in the median incision, may then be sutured with buried gut suture. The skin wound is closed. No drainage is used. The limb is put up in full extension. Comment. — In some old cases the quadriceps extensor tendon has con- tracted to such an extent that it is necessary to lengthen the common quad- riceps extensor (see operation for muscle-lengthening, page 246). OPERATION FOR RECENT OR UNUNITED FRACTURE OF PATELLA BY WIRING OR SUTURING OF BONE AND SOFT PARTS. Description. — The ends of the bones, after being cleared, and, if neces- sary, freshened, are drilled and wired together, the wire being buried and left — or they may be sutured with an absorbable material. The joint may be exposed by a median vertical, transverse, or by Cheyne's oval incision — the last being here described. Position — Landmarks. — As in the above operation. Incision. — Oval, outlining a flap with upward convexity, which is raised from over the patella and temporarily turned downward. The incision begins 2.5 cm. (1 inch) to one side of the patella, on a level a little below the fracture — extends vertically upward and then curves across the front of the thigh about 2.5 cm. (1 inch) above the upper border of the patella, and descends on the opposite side to a point corresponding with its commence- ment. This flap-incision gives a full field and places the scar above the patella. Operation. — The fractured ends of the bones are exposed, the joint irrigated, and the fragments slightly everted and examined. All interposed periosteum, fibrous and other tissue are removed. In recent cases no removal of bone is ordinarily indicated. In old cases a thin slice of bone is removed from each fragment. Each fragment is now grasped in turn by means of stout bone-forceps, injuring the bone as little as possible while firmly steadying it (Fig. 201). One, two, or three wire sutures, as seem indicated, are now introduced in the following manner; — Two holes are drilled directly opposite each other in a vertical line, in the upper and lower fragments, a short incision being made for the drill through the fibrous covering of the patella, within 8 mm. to 1.3 cm. (^ to \ inch) of the fractured edges — the margins of the incision through the fibrous tissue being drawn aside and the drill (hand or motor) directed obliquely, so as to come out at the fractured margin after having passed through about two-thirds of the thickness of the bone. All the drill-holes are first made, and are made from without inward. Care is taken that each pair of holes is drilled immediately opposite and that their points of emergence on the fractured surfaces are on the same level. The wires are now passed, are grasped with strong forceps, and, while an assistant firmly approximates the margins of the fragments, these wires are tightly OPERATION FOR FRACTURED PATELLA BY WIRING. 235 twisted for three or four turns, cut off about 6 mm. (J inch) long, bent upon the bone, and slightly buried by one or two blows of the mallet. The peri- osteum which has been drawn out from between the fragments of bones is stitched together with chromic gut to the opposite lip of the torn periosteum. Fig. 201.— Operation for Fractured Patella by Wiring:— a. Lower fragment of patella steadied with hone-holding forceps ; B, Drill in act of making holes for passage of silver wire, one piece of which is seen in position ; C, Chromic gut suture of torn capsule and fibro-periosteum. The rent in the capsule generally found on each side of the fractured patella is similarly sutured with gut. The fibrous covering of the patella, incised in raising the oval flap, is sutured with buried gut. The wound is closed through- out — no drainage being used. The limb is put up in full extension. Comment. — Chromic gut, kangaroo tendon, and silk are also used in the same manner as wire. 236 OPERATIONS UPON THE BONES. OPERATION FOR RECENT OR UNUNITED FRACTURE OF PATELLA BY AN ENCIRCLING SUTURE OF THE SOFT PARTS. Description. — Having exposed the fracture, an encircling suture of kanga- roo-tendon, chromic gut, or silver wire is carried through the soft parts border- ing upon the patella, including the quadriceps extensor tendon, the ligamentum patellae, and the capsule — which is then tightened and tied or twisted, while the fragments are held in close apposition. Position;— Landmarks.— As in the preceding operations. Fig. 202. — Encircling Suture used in Fracture of Patella: — The suture passes through the quadriceps extensor tendon above, through the ligamentum patellas below, and through the capsule and lateral ligaments at the sides. The transverse rent in the capsule is then sutured separately. Incision. — The patella may be exposed by either of the incisions just described — or a flap with downward convexity may be raised. In the latter instance a flap with downward convexity is outlined, which will be the reverse of the one in the preceding operation. It begins 2.5 cm. (1 inch) to one side of the patella, on a level a little above the fracture — extends vertically down- ward and then curves across the front of the leg about 2.5 cm. (1 inch) below the lower border of the patella, and ascends on the opposite side to a point cor- responding with its commencement. This flap-incision gives a full field and places the scar below the patella. OPERATION FOR RECENT FRACTURE OF OLECRANON. 237 Operation. — As to the exposure of the fractured parts, the steps of the oper- ation are in every respect similar to those in the operation described at page 233, the manner in which the patella is surrounded with the ligature alone differing. By means of a Reverdin needle heavy kangaroo-tendon is carried in and out through the soft parts bordering upon the patella, including the extensor quadri- ceps tendon, the ligamentum patellae, and the lateral aspects of the capsular ligament, in the manner shown in Fig. 202. Chromic gut or silver wire may be used. In the case of using the last, it is drawn into position by means of a silk carrier. After the suture has been placed, the fragments of the patella are drawn into very close apposition by pointed retractors pulled in opposite directions — during which close contact of the margins the suture is drawn tight and tied, or, in the case of wire, twisted. The rent in the capsule and lateral ligaments is then closed, from one extreme lateral aspect to the opposite and across the front of the patella, as in all operations upon the patella. The flap is now brought down and sutured along its margin — without drainage. Comment. — The circular suture may be carried continuously through the substance of the quadriceps extensor tendon and the ligamentum patellae. Fig. 203.— Operation for Fractured Olecranon by Wiring : — A, Drilling holes for pas- sage of silver wire, one suture being seen in position, and one being drawn through ; B, Chromic gut suturing of torn capsule and nbro-periosteuni. 238 OPERATIONS UPON THE BONES. OPERATION FOR RECENT OR UNUNITED FRACTURE OF OLECRANON BY WIRING OR SUTURING OF BONE AND SOFT PARTS. Description. — The olecranon is quite frequently fractured at its junction with the shaft of the ulna — and is repaired by wiring or suturing in the same general manner as in the case of fracture of the patella. Position. — Patient supine; forearm drawn across chest, by an assistant on the opposite side, presenting to the surgeon the semiflexed elbow, while exposing the fragments; and fully extended by the side while suturing. Surgeon stands opposite the elbow. Landmarks. — Contour of olecranon; shaft of ulna; condyles of humerus. Incision. — The site of fracture may be exposed — (1) By an oval incision; — beginning to one side of lateral border of olecranon, just below the fracture — passes upward in axis of limb for about 2.5 cm. (1 inch) above the olecra- non — thence curves across arm and descends to a corresponding point on the opposite side — thus furnishing a free exposure of the fracture and providing a scar which falls out of the way of pressure. (2) By a median longitudinal Fig. 204. — Encircling Suture used in Fracture of Olecranon: — The upper limb of the suture is shown passing through the olecranon; and the lower limb through the shaft of the ulna. incision; — beginning and ending considerably above and below the line of fracture, but not involving the muscles above or below — and having its center over the fracture. The length of this incision allows of sufficient lateral retraction to well expose the parts (though less perfectly than the incision just described). Operation. — The incision passes through skin, fascia, bursa, fibrous expansion of the triceps tendon, and periosteum directly onto the bone (Fig. 203). The manner of exposing the fractured ends, irrigating the joint, removing a slice of bone from each fragment in old cases, drilling the fragments, passing and tightening the wire, suturing the torn periosteum and fascia, and closure of wound are similar, in all practical essentials, to the corresponding steps in the operations just described upon the patella (page 234). The limb is put up in full extension. Comment. — (1) Chromic gut, kangaroo tendon, and silk may be used SEQUESTROTOMY. 2 39 instead of wire. (2) In some old cases, where much retraction of the triceps has occurred, that muscle should be lengthened, as described under muscle- lengthening (page 246). (3) Instead of passing the sutures in the way indi- cated above, an encircling suture may be carried in such a manner as to pass through the shaft of the ulna below, and through the triceps tendon above and be tied on one side, as shown in Fig. 204. The capsule and lateral ligaments are closed by sutures. SEQUESTROTOMY. Description. — An operation for the removal or excision of a sequestrum (dead bone) en masse. The operation might be more properly termed sequestrectomy. The site of the sequestrum is generally determined by the presence of one or more sinuses, together with the history of the case. Position and Preparation. — Patient is so placed as to expose the in- Fig. 205.— Cross-section of Leg, Showing a Sequestrum-cavity. volved site most conveniently. A constrictor is usually applied, where possible, to control hemorrhage. Landmarks. — Generally the existence of one or more sinuses; the known anatomy of the part. Incision. — Generally placed in the long axis of the limb, or in such a position as to fall in with the intermuscular cleavage line and so as to lead to the site by the safest route — with its center over the sinus, or extending between the two chief sinuses (Fig. 205). Operation. — The incision passes down to and through the periosteum. The soft parts, including periosteum, are then retracted laterally, fully exposing the bone in the neighborhood of the sinus, or between two or more sinuses. It may be at once possible to grasp the sequestrum with strong forceps introduced through the sinus-opening and draw it out — or the sinus-opening may be sufficiently enlarged for this purpose by rongeur forceps. If neither of these can be clone, the sinus may be enlarged with the curved chisel — or the bone between two sinuses may be chiseled away — or the bone may be chiseled away in the long axis of the sequestrum, even where but one opening exists — or a trephine-opening (one or more) may be made instead of using the chisel. Following the removal of the sequestrum, the cavity of the bone should be well scraped. The periosteum and muscles are then united by buried gut sutures, and the skin closed with sutures of silkworm - gut or silk — drainage being established to the bottom of the bone cavity in the most favorable position. If the limb be weakened by the operation, it should be put up in a splint. 240 OPERATIONS UPON THE BONES. Comment. — Bone-chips may be used in the cavity — or the entire thick- ness of the soft parts, including periosteum, may be inverted into the bottom of the bone cavity from each side and held in place by a nail or peg (Fig. 206). Or the cavity may be packed throughout with gauze. Fig.206— Sequestrotomy:— Neuber's Operation. The antero-internal aspect of the tibia is removed— sequestrum cavity scraped— the integumentary tissues nailed to its floor— and relaxation sutures placed. OSTEOPLASTY. Description. — Transplantation of bone — in the form of bone-chips or decalcified bone-fragments — which are placed in the desired site and among which organization of the blood-clot takes place. The transplantation of a larger section of bone, entirely detached, has not yet been commonly done — though the success of reinserting the trephine-buttons suggests the practi- cability of such a course. This principle will be further mentioned under osteoplastic amputations. Operation. — The site of operation having been rendered bloodless by a proximal constrictor, and having provided the bone-chips in advance (which come specially prepared by decalcification), the locality is exposed. If the chips are to be used within a bone cavity, such as a scraped medullary cavity, it is seen that this is thoroughly aseptic before their introduction. If they are to be used within a periosteal cavity (as after the partial resection of a bone), this periosteal cavity should be kept as nearly like the special form of the original bone as possible. In the case of the bone cavity, the bone-chips are dropped into the cavity and the soft parts sutured as just described in the above operation. In the case of a periosteal cavity, sutures of gut are made to approximate the periosteal margins over the included bone- chips — and the muscles over the periosteum — and finally the skin, in the usual manner. The tourniquet is then removed and the blood allowed to flow into the part and fill the interstices between the bone-chips. The part is usually put up in an immobilizing splint. Comment. — If the neighboring parts do not cover the site in which the bone-chips have been deposited, they may be covered by sterilized rubber tissue. Other applications of osteoplasty are mentioned under Bone-grafting (page 227). EXCISION. Excision of the bones is described under the general head of Excisions and Osteoplastic Resection of Bones and Joints (pages 463 to 531). CHAPTER VI. OPERATIONS UPON THE JOINTS. EXPLORATORY PUNCTURE OF JOINTS. Description. — The exploration of the fluid contents of a joint by means of the needle of a suction-syringe — for the purpose of ascertaining the nature of those contents — or for the evacuation of the fluid found. Indications. — Collection of pus, or other fluid, within a joint. Preparation — Position. — As for arthrotomy. Special Instruments. — Exploratory or aspirating syringe. Operation. — The same preliminaries having been observed as in ar- throtomy, the needle of the exploratory syringe is thrust, by the safest and shortest route, into the joint — the cylinder withdrawn and the contents aspirated. Following the withdrawal of the needle, the punctured wound is hermetically closed with sterilized collodion. ARTHROTOMY. Description. — A simple incision into a joint. Indications. — Exploration; removal of foreign body; evacuation of pus, or other fluid; irrigation; drainage. Preparation. — As for a major operation of the same joint. Position. — Determined by the special operation — and such as to render the site of incision prominent and convenient. Special Instruments. — Scalpel; dissecting forceps; artery-clamp forceps; retractors; tourniquet (sometimes). Operation. — The patient having been placed in a position to render the joint most accessible — and the overlying tissues in the best position with reference to the joint — an incision, of the simplest form and shortest extent compatible with the object in view, is made over that aspect of the joint which will lead into the interior of the joint-structures by the route which is shortest and safest, both in regard to the joint-structures and the tissues intervening between skin and joint. Having opened up the joint, the sub- sequent steps will depend upon the special object of the operation; — (a) Where exploration is the object; its interior is examined by some form of probe or sound, or, preferably, by the gloved finger-tip; — (b) Where the removal of a foreign body is sought; suitable forceps are introduced, with which it is grasped and withdrawn; — (c) Where drainage is indicated; a tube, or other drain, is inserted through the incision, with or without a counter- opening. In the first two cases, the wound is entirely closed. In all cases the joint is immobilized. ARTHROPLASTY. Description. — The formation of a movable joint, by the interposition between the loosened ends of the bones of some of the neighboring soft tissues or of some foreign material. Indications. — Ankylosis of the joints. 16 241 242 OPERATIONS UPON THE JOINTS. Preparation; — Position; — Incision. — Determined by the special oper- ation. Operation. — The site of the former normal joint is exposed in the usual manner. At the original joint-line the ankylosed bones are divided by means of a chisel or saw. All bone interfering with joint-movement is cut away. Synovial membrane and capsule are excised and any other structures apt to prevent movement of the new joint. Muscular and tendinous attachments are preserved. Shortened muscles are lengthened. All cicatricial tissue is removed. The preparation for the interposition of the neighboring soft parts must be thorough. A musculo-aponeurotic flap, covered by fat, and large enough to cover the ends of the divided bones, is raised from the neighbor- hood of the special joint and turned in between the sawn ends of the bones, and is sutured to the margin of the capsule which has been left in situ. Where the aponeurosis is insufficient, a muscle-flap, with as much adherent fat as possible, is used. The part is immobolized for a week or more — after which passive motion is begun (with anesthesia if necessary), followed my massage — irrespective of the suffering caused, as the production of a joint will depend upon the transformation of the interposed tissue to a bursa. Comment. — Animal membrane, such as a piece of bladder, has been used. Foreign substances have also been employed, such as silver, tin, rubber, cellu- loid, silver foil, and the like, in the form of plates — but the interposition of the neighboring soft parts, especially fat (which, under pressure, readily develops connective tissue and forms a bursa), produces the best results. ARTHRODESIS. Description. — The production of an artificial ankylosis in a joint by the removal of a part or all of the articular cartilage. Indications. — Sometimes resorted to in order to produce a rigid joint in certain muscular paralyses and flail-like joints. Preparation; — Position; — Incision. — Dependent upon the individual joint. Operation. — The special joint is exposed by a convenient incision. The articular cartilage entering into the formation of the joint is removed by means of a knife or chisel, in a thin layer, from the surfaces of the bones forming the joint. The denuded bones are then placed in apposition, and either held there by subsequent plaster dressing or splints, or by means of nailing or sutur- ing the parts together. The site is thus immobilized until ankylosis has occurred. Comment. — In some situations, the ankle-joint, for instance, the operation may be reinforced by the transplantation of tendons. ERASION OR ARTHRECTOMY. Description. — Etymologically, erasion signifies the scraping or curetting of a joint — and arthrectomy, the cutting out of a joint. Practically, both expressions are used synonymously — and are taken to signify the exposure of a joint with the removal of the diseased tissue alone. While arthrectomv signifies, literally, the cutting out of a joint, it is- not here used as the word ex- cision commonly signifies. In excision, the articular ends of the bones are invariably removed — in erasion or arthrectomy, while a certain amount of ERASION OR ARTHRECTOMV. 243 bone may be incidentally removed (and always as much as is diseased is removed) in the gouging, only the articular cartilages and synovial membrane are supposed to be scraped or curetted. When bone is removed at all, the least possible is removed, and that is generally done with a gouge — and the whole operation conducted with as little injury as possible to the neighboring structures. In extreme cases all the articular cartilage is gouged away, all the synovial membrane is dissected out, and some of the bone is removed. An erasion or arthrectomy is, therefore, commonly understood as the applica- tion of scraping to the interior of a joint — the laying open of a joint and the removal of as many and as much of the tissues forming the joint as are dis- eased — synovial membrane, capsular ligaments, cartilage, and bone — the removal generally being accomplished by some form of gouge for cartilage and bone, and scissors and knife for soft parts. An arthrectomy, finally, may be regarded as a procedure the same in general purpose, though less Fig. 207.— Erasion of the Knee-joint: — A, Removal oi cartilage of condyle of lemur wilh raspatory ; B, Removal of cartilage of tibia with curette. The joint is exposed by a transversely curved incision and the patella turned backward. severe in degree, as an excision — and is distinctly a conservative measure espe- cially applicable to early cases. An arthrectomy is a part of every excision. Arthrectomy has its greatest application in joints of simple structure and easy approach — the knee being its most frequent site of application. A movable joint is always to be sought after erasion, even in the case of the knee (although in the latter case some surgeons prefer to secure ankylosis in preference to a probable weak joint). Arthrectomy is always preferable tc excision in children, owing to its non-interference with the growth of bone. Indications. — Disease of the articular structures, especially tubercular. Preparation — Position. — As for excisions (page 397). Special Instruments. — Besides those used for excisions, the following are specially required; — Gouges, curettes; spoons — of many sizes and shapes, dull and sharp. Flushing-gouges. Operation. — No form of constrictor is ordinarily used — though may be used, as in excisions. The incision is generally the same as that for the excision of the corresponding joint. Having exposed the interior of the joint, the following structures are closely examined, and, if necessary, removed — the guide being that all diseased tissue should be removed; — (a) Synovial 244 OPERATIONS UPON THE JOINTS. membrane; where but slightly involved, is curetted, — where extensively, it is grasped with toothed forceps and dissected out, in as continuous a layer as possible, with scissors or scalpel. Every recess is sought and, if diseased, thoroughly curetted or removed, (b) Bursa* communicating with joint; are subjected to the same treatment as the synovial membrane — opened up and followed to their furthest extent, (c) Ligamentous tissue; to be scraped and cut away, (d) Articular cartilage; all involved or suspicious areas are gouged out with a sharp spoon, (e) Articular ends of bones; if actually diseased, or suspicious, to be removed with gouge, (f) Extra-synovial and extra-articular tissues; to be dissected out and removed, if involved. Finally, where much debris results, it is well to use a flushing-gouge and clean out the area of operation. Drainage is usually not necessary — but may be temporarily used where thought best. The capsular ligament, if not dis- sected away in removing disease, is closed by buried gut sutures. Muscles separated in reaching the joint are similarly brought together with buried gut sutures. The limb is put up upon an immobilizing splint. The after- treatment is practically the same as after excisions — and a more satisfactorily functioning joint is to be expected. (Fig. 207.) OPERATION FOR DISLOCATED SEMILUNAR CARTILAGES. Description. — A dislocated semilunar cartilage of the knee may be exposed and sutured back into position — or may be removed in part or in its entirety. Indications. — Those cases in which postural and mechanical treatment have failed. Preparation; — Position; — Landmarks. — As in the operation of excision of the knee-joint (page 521). Incision. — A vertical incision may be made to either side of the patella, dependent upon the particular semilunar involved. Or the entire joint may be exposed by means of a transverse curved incision, as for excision (page 522). Operation. — A sufficiently free exposure of the joint is made to enable manipulation of the involved structure. If the cartilage be only slightly sepa- rated from its peripheral attachment, or be torn to a limited extent radially, it may be sutured into its normal position with catgut sutures and the joint closed. If this technic does not promise to suffice, a portion of the cartilage may be excised. If a greater degree of separation or damage be found, the entire cartilage may be excised. The joint is closed without drainage, unless hemorrhage into the joint indicate the need for temporary drainage. The joint is immobolized for six to eight weeks — the muscles being kept up by massage in the mean time. The functional result of the joint is usually satis- factory. EXCISION. Excision of the joints is described under the general head of Excisions and Osteoplastic Resections of Bones and Joints (pages 463 to 531). CHAPTER VII. OPERATIONS UPON THE MUSCLES. MYOTOMY. Description. — Division of muscle — generally done as a preliminary to muscle-lengthening, or in the exposure of underlying parts, or in deformities. Operation. — The muscle is fully exposed by an appropriate incision — or is exposed in the course of some operation. Having been isolated from neighboring structures, the muscle is cleanly divided with a scalpel, cutting transversely, or very slightly obliquely, to the di- rection of its fibers. A grooved director may first be passed beneath the muscle, but is rarely necessary. Myotomy should be done by the open method. Muscles are some- times divided subcutaneously (as the sternomastoid, for torticollis), but this is even less advisable (owing to their greater size and less accurately defined contour) than the subcutaneous division of tendons. MYORRHAPHY. Description. — -Suturing of muscle which has been either pur- posely and cleanly divided (as in an operation) — or accidentally and unevenly divided or ruptured (as from injun- or from excessive action). Operation. — (a) Where mus- cle has been deliberately cut in the course of an operation, to expose underlying parts (as in dividing the sternomastoid in removing the cervical glands); — The muscle is here cleanly and evenly divided, preferably in a transverse or very slightly oblique direction. At the time of suturing, the parts are put into a position to relax the muscle as much as possible. While the two opposing ends of the muscle are carefully held in easy contact, as many muscle-sutures are inserted and tied as the 2 45 Fig.208.— Myorrhaphy : — The divided biceps is here shown sutured in several ways ; A, Mat- tress suture; B, Lateral knotted suture; C, Peripheral suture ; D, Lateral through-and- through suture; E, Antero-posterior through-and- through suture. The last two are here shown as relaxation — or reinforcing — sutures. 246 OPERATIONS UPON THE MUSCLES. size and form of the muscle require. Chromic gut or kangaroo tendon is used for suturing — and the sutures are all buried. One of several forms of stitch may be applied. As the muscle-sutures are practically the same as tendon-sutures, and applied in the same manner, they will only be briefly mentioned here and their fuller description given under tendons, (i) Inter- rupted mattress sutures (Fig. 208, A). This is probably the best form of muscle-suturing. (The manner of its insertion is given at page 252.) (2) Interrupted sutures passing transversely through the upper and lower ends uf the cut muscle (page 252). (3) Lateral knotted sutures (Fig. 208, B) (page 253). (4) Simple, peripheral longitudinal coaptation sutures (Fig. 208, C) (page 252). (5) Relaxation sutures for reinforcement; — In any of the above forms of primary or coaptation sutures, one or more relaxation sutures of heavy catgut may be applied, passing transversely through the entire thick- ness of the muscle considerably above and below the primary sutures, and tied tightly enough to take the chief tension — and thus free the primary sutures from strain (Fig. 208, D, E). (6) Binnie's form of suture is particularly good — it is a continuous suture, passing well into the substance of the muscle and reinforced at intervals by transverse passage of the needle, (b) Where the muscle has been accidentally and unevenly ruptured; — The ruptured muscle is exposed by the safest, most direct, and least damaging route — remem- bering that the ends of the muscles may have retracted far away from their normal position. If the ends of the muscle have been left very irregular, they are carefully trimmed, and are then sutured in one of the above manners. If they be torn almost transversely, they are approximated and sutured without trimming. If much muscle tissue have been lost, or be sacrificed in trimming, some process of lengthening may have to be resorted to before the ends can be made to meet without too great tension (see muscle-lengthening, below). In order that the skin-incision, used in reaching the part, may not lie over the muscle wound, bringing two cicatrices directly opposite, a curved incision may be used — or an oval flap of overlying parts may be raised. In completing the operation, the part should be so immobilized in the dressing as to relax the muscle as completely as possible. MUSCLE-LENGTHENING. Description. — In old cases in which muscle tissue has contracted con- siderably (as in long-standing cases of fractured patella or olecranon) — or in cases in which much muscle tissue has been lost in injury, or has been sacrificed in trimming muscles for suturing — it is impossible to approximate the separated ends without too great tension, unless the muscle be lengthened. Muscle-lengthening, therefore, is resorted to in two sets of cases, — those in which muscle must be lengthened to enable parts below, other than the muscle, to be approximated without too great tension (as in the case of the triceps or the common quadriceps extensor, in fractures of olecranon and patella), — and those in which lengthening is necessary after an old transverse rupture of a muscle in which the ends are separated too far to allow of ap- proximation without too great tension (as in transverse rupture of the biceps muscle). In either category of cases the operation is the same. Operation. — The patient having been placed so as to relax the part completely, the site of lengthening is exposed by a longitudinal incision of about 7.5 to 10 cm. (3 to 4 inches) in length, placed over the involved muscle. The incision should be sufficiently long to afford free access and manipulation and planned to reach the parts by the safest, most direct, and least damaging route. Retract the overlying soft parts and isolate the muscle. Divide the MUSCLE-LENGTHENING. 247 muscle in a zig-zag line running transversely, and about 7.5 to 10 cm. (3 to 4 inches) above the ruptured part. This is a series of bluntly rounded serrations or V's — the incision passing upward about 5 cm. (2 inches) and downward the same distance, until the width and entire thickness of the muscle is traversed (Fig. 209, A). The muscle on either side of the zig-zag incision is now drawn apart until the apices of the V's touch. If the teeth or serrations are 5 cm. (2 inches) in length, when the suturing is done, nearly 5 cm. (2 inches) in length will be gained. The adjacent late- ral margins of the t.vo muscle-ends are now sutured by the knotted sutures described above (Fig. 210, E, E) (page 253). A V from above is now sutured, by the same knotted suture, or other form of suture, to Fig. 20Q.— Muscle-lengthening:— I.— Fig. 210.— Muscle-lengthening:— II. A, By means of a series of U-shaped incisions; — Manner of suturing the muscle-sections B, by a single long V-shaped incision. A case shown in the last illustration: A, Needle carrv- of ruptured patella is here represented. (The ing one part of a lateral knotted suture through manner of uniting these sections is shown in one of the tongues of the split muscle; B, the following diagram.) Opposite part placed; C, Each half tied and the free ends being knotted; D, A completed lateral knotted suture; E, E, Lateral knotted sutures approximating the bases of the tongues and also serving as relaxation-sutures; F, Suture of the tongue-and-groove suture. the A below, so that their blunted tips are held in contact by the sutures passed through above and below their tips (unless some such form of suture be used, as shown in Fig. 208, A, B, C, D). Theoretically, the apex of a V above will correspond with the base of a V below, but, practically, the apices are so disposed in the suturing as to bring them in contact. Suffi- cient length having been gained, the lower operation, for which the lengthening was primarily done, is now performed (an ununited fracture of patella or 24S OPERATIONS UPON THE MUSCLES. olecranon, or ruptured biceps) — and unless this site has been exposed in the original incision, a separate incision is made for that purpose. Both wounds are then closed and the limb placed in a splint that will cause full relaxation of the parts during healing. Lengthening may also be accom- plished by a long V-shaped incision, as in Fig. 209, B, which is then sutured as shown in Fig. 210, F. Some of the methods of tendon-lengthening described on pages 254 to 259 are also applicable to muscles. CHAPTER VIII. OPERATIONS UPON THE TENDONS AND TENDON-SHEATHS. TENOTOMY. Description. — Division of tendons. Varieties. — Open Tenotomy, where the tendon is freely exposed before Fig- 2 1 1.— Open Tenotomy : — Of the tendo Achillis. being cut. Subcutaneous Tenotomy, where the division is made beneath the skin, by the sense of touch. Complete Tenotomy, where the entire thick- 249 250 OPERATIONS UPON THE TENDONS AND TENDON-SHEATHS. ness of the tendon is divided. Partial Tenotomy, where a part only of the thickness of the tendon is divided, the remaining fibers being stretched. Indications. — Shortening of tendons. To prevent action of muscles. Special Instruments. — For open tenotomy; — scalpel; artery-clamps; dis- secting forceps; retractors. For subcutaneous tenotomy; — tenotomes, straight, curved, sharp and blunt. Open Tenotomy. — The tendon is here divided in an open wound. The incision for its exposure is generally made parallel with and directly over the tendon. The overlying soft parts are retracted — the tendon is exposed and isolated — and its sheath, if any, is opened. The tendon is then grasped with forceps and divided with a scalpel. The ends retract in both directions. Fig. 2 1 2. —Subcutaneous Tenotomy : — Of the tendo Achillis. The wound is entirely closed and the limb dressed upon a splint, or the part immobilized (Fig. 211). Subcutaneous Tenotomy. — The tendon is here divided subcutaneously, through the smallest possible wound. Having put the tendon upon the stretch, to render prominent, an incision is made parallel with and just to one side of the tendon to be cut, and so placed as to do the least damage to other structures in the neighborhood. The incision is first made with a sharp tenotome, through skin and fascia down to the tendon — upon this as a guide the blunt tenotome is passed sidewise (the sharp one being withdrawn). The tenotome is then insinuated beneath the tendon, which it closely hugs throughout. Sometimes temporary relaxation of the tendon will aid the passage of the knife beneath it. The cutting-edge of the tenotome is then turned outward — the tendon put upon the stretch — the forefinger of the TENORRHAPHY. 251 left hand being placed over the site of section as a guard and guide — and the tendon cut by a short sawing movement, the last fibers being cut carefully as the tendon is felt to yield. The knife is finally withdrawn upon its side. The wound is sutured and the limb dressed upon a splint '(Fig. 212). Comment. — (1) In simple sections where the tendons are easily accessible and the neighboring parts are not important, subcutaneous tenotomy may be done. Where the opposite conditions exist, open tenotomy should always be practised. (2) In doing subcutaneous tenotomy, the tenotome is some- times inserted between skin and tendon and the section made inward upon the tendon — which is more dangerous than cutting from beneath the tendon outward. TENORRHAPHY. Description. — Suturing of tendon. In recent cases the ends of the tendons can ordinarily be approximated without great difficulty. In old cases if the ends cannot be approximated and sutured after freshening them by Figs.2 13-2 16.— Tenorrhaphy : — A, Single suture through entire thickness of tendon; E, Two sutures entirely through tendon, in opposite directions; C, Peripheral sutures; D, Woelfler's quilt sutures. trimming, some method of lengthening must be used — and if their union cannot be accomplished by lengthening, transplantation to adjacent tendons may be resorted to. Varieties. — Primary, when the tenorrhaphy is done near the time of injury. Secondary, when done after healing. Operation. — In recent cases an already existing wound may be present (except in such cases as subcutaneous rupture of a tendon) — and where a wound is present, this is simply enlarged and the tendon more fully exposed and the ends isolated. Where no wound exists at the time of the tenorrhaphy, the main tendon and its ends are exposed by an incision which reaches the site by the safest and simplest route. In primary tenorrhaphy the ends may require no trimming, especially in clean cuts, — or but slight trimming. In secondary tenorrhaphy, a transverse or oblique section of the tendon ends is always necessary, prior to suturing. In either case, the opposite ends of 25 : OPERATIONS UPON THE TENDONS AND TENDON-SHEATHS. the tendons are brought well into the wound and approximated. Chromic catgut and kangaroo tendon are the best materials for uniting the ends. Several methods of suturing are used — the chief of which will be here de- scribed: (a) Interrupted sutures passing transversely through upper and lower ends of divided tendon (Figs. 213 and 214, letters A, B) ; — A straight needle enters the proximal surface of the upper portion and passes transversely through its thickness, about 8 mm. or 1.3 cm. (from ^ to ^ inch) from the cut margin — emerges at same level upon distal surface — crosses the gap- enters the distal surface of the lower portion, from 8 mm. to 1.3 cm. ($ to \ inch) from the cut end — passes transversely through — emerges at same level on proximal surface. The two ends of the suture are drawn upon until the tendon ends are approximated, and are then tied. When the tendon-ends have been cut obliquely, the sutures are so passed as to cross the line of division at a right angle (Fig. 222, B). (b) Interrupted mattress sutures; — ■ A curved needle enters the proximal surface of the lower portion, about 8 mm. (3 inch) from its end — passes axially through two-thirds of the thickness Figs. 217-220. -Tenorrhaphy: — A, Mattress sutures; B, Same, tied; C, Lateral; knotted sutures (a less usual form of tenorrhaphy); D, Same, tied. of the tendon — emerges on the cut margin — crosses the gap to the upper portion — enters the cut margin about two-thirds its thickness from the prox- imal surface — emerges about 8 mm. (J inch) above the end — passes over the outer surface of the upper portion of the tendon for from 8 mm. to 1.3 cm. (3 to ^ inch) — again enters the upper portion on a level with the point at which it has just emerged from the upper portion — passes through about two-thirds its thickness — emerges on the cut margin — crosses the gap to the lower portion — enters its cut margin about two-thirds its thickness from the proximal surface — and emerges on the proximal surface on a level with the original entrance — when the two ends of the tendon are drawn upon until the cut surfaces come well into contact and are then tied (Figs. 217 and 218, A and B; and Fig. 216, D). (c) Peripheral longitudinal coaptation sutures; — A curved needle enters the lateral surface of the upper portion, about 8 mm. or 1.3 cm. Q to \ inch) from the cut edge — passes longitudinally through the tendon and emerges on the cut margin about 6 to 8 mm. {\ to \ TENORRHAPHY 253 inch) from the lateral surface — crosses the gap — enters the cut margin of the lower portion, from 6 to 8 mm. (j to ^ inch) from the lateral surface — passes longitudinally through the muscle and emerges on the lateral surface, about 8 mm. to 1.3 cm. (^ to ^ inch) from the cut margin. The upper and lower ends of the sutures are now tied, approximating the tendons. These sutures are repeated at intervals of about 8 mm. to 1.3 cm. (J to \ inch) around the entire circumference of the tendon (Fig. 215, C). (d) Lateral knotted sutures; — A curved needle enters the lateral surface of the upper portion about 8 mm. to 1.3 cm. (£ to \ inch) from the cut margin — passes transversely through the tendon tissue for about 8 mm. to 1.3 cm. (£ to \ inch) in width, and 8 mm. (| inch) in depth — and emerges on the level of entrance. The two ends of the suture are now tied, care being taken to but slightly, if at all, pucker the tendon — and one end of the suture is then cut short The same kind of suture is applied immediately below, in the lower portion of the tendon, and one end of the suture similarly cut short. The two long ends of the sutures are then tied together, thus approximating the two ends of the tendon. As Figs. 221-223. — Tenorrhaphy: — A, Reinforcing or relaxation suture, applicable to any form of suturing (shown with first turn of knot); B, Suturing of obliquely divided ends; C, Reinforcing through-and-through suture by lateral suture through loops of first suture (a less usual form of suturing). many of these pairs of sutures are introduced as necessary (Figs. 210 and 220, C and D). The extreme margins of the tendon-ends may be further sutured, between these sutures, by method "c." (e) Relaxation sutures; — In any of the above forms of primary or coaptation sutures, one or more relaxation sutures of heavy catgut may be applied, passing transversely through the entire thickness of the tendon considerably above and below the primary sutures — and tied tightly enough to take the chief tension, and thus free the primary sutures from strain (Fig. 221, A), (f) Combination of the interrupted mattress (method "b"), or lateral knotted sutures (method "d"), with relaxation sutures (method "e"). Of these various methods, either method "a" or "b" is probably most generally applicable — the former especially in smaller tendons and the latter in larger. Having united the tendon-ends, the wound is closed and the limb put up upon an immobilizing splint. 254 OPERATIONS UPON THE TENDONS AND TENDON-SHEATHS. Comment. — (i) While a constrictor is not generally necessary, its use is ordinarily advisable. (2) Some surgeons prefer to expose the parts by a curved incision, beginning and ending over the tendon, above and below the rupture, but not over the rupture — so that there may be no possibility of adhesion between the tendon cicatrix and the skin cicatrix. (3) The ends of the tendons often form adhesions to their sheaths, and must be freed before they can be brought together. (4) All tendon-sheaths opened to expose tendons must be repaired with catgut. (5) The upper end of the divided tendon retracts further, and is harder to find, than the lower. The upper end retracts more because of the more active shortening of the proximal end of the muscle. It may be found, in hard cases, by "milking" the tendon- sheath downward — or by incising over the tendon higher up and tracing downward — or by incising the sheath in the lower part of the wound and tracing upward. The upper end of the tendon may sometimes be brought into view by extending the fingers or toes, the fibro-serous vincula pulling down the adjacent tendons. The lower end is generally not hard to be found — when hard, incise over the sheath lower down and trace upward — or pass a probe into its sheath from below and protrude it upward. (6) If the two ends cannot be found, one end must be transplanted into a neigh- boring tendon of the same group or function (see transplantation and grafting of tendons, pages 261 to 265). (7) The limb is put up so as to relax the tendon and muscle fully, and held so in a splint during union. After union has occurred, passive and active movements are begun early and persisted in — in order to prevent adhesion of tendon to sheath, and to get full range of movement. (8) It will be seen by comparing the illustrations of Neuror- rhaphy (pages 160 to 162) that many of the methods used in uniting nerves are applicable to the union of tendons, and vice versa. TENDON-LENGTHENING. Description. — Tendon-lengthening, sometimes called tendoplasty, is ap- plied to the lengthening of shortened tendons, or to the union of severed tendons, by processes of plastic elongation. Varieties. — Tendon-lengthening may be required in two classes of cases; — (1) Where the tendon is intact but shortened; — (2) Where the tendon has been severed and the divided ends have retracted. As to the time of per- forming the operation, tendon-lengthening may be either primary (done near the time of injury), or secondary (when done after retraction and healing). Operation. — Much that has been said under Tenorrhaphy, as to the exposure of the tendon, is equally applicable here — (see Operation, page 251, and Comment, page 254). Having exposed the shortened tendon, or the retracted tendon-ends, in the wound, one of several methods of lengthening may be applied — the chief of which will be here described: — (a) Operations for lengthening shortened intact tendons: — (1) By long oblique division of tendon, with gliding of beveled ends; — The obliquity of the division will determine the amount of lengthening — the ends being slid past each other far enough to still leave sufficient substance for union — and then the ends are sutured by several transverse sutures of chromic gut or kangaroo tendon. An oblique incision of 5 cm. (2 inches) will furnish a lengthening of from 2.5 to 4 cm. (1 to ij inches) (Fig. 225, B). (2) By central longitudinal splitting of tendon with transverse division of the split ends and their approximation, surface to surface; — Having split the shortened tendon TENDON-LENGTHENING. 2 55 Figs. 224— 227.— Tendon-lengthening : — A, Splitting tendon transversely and longitudinally and suturing ends laterally ; B, Splitting and suturing tendon obliquely ; C, Splitting tendon obliquely and longitudinally and suturing split portions end-to-end ; D, Splitting one end obliquely and longitudi- nally and suturing the split end laterally to opposite unsplit end. Figs. 228-231. — Less Usual Forms of Tendon-lengthening: — A, Splitting one end longitudinally and transversely, reinforcing where bent, and suturing split end into opposite unsplit end; B, Splitting both ends longitudinally and transversely, reinforcing where bent, and suturing split portions end to end; C, Same, with suturing of split portions laterally; D, Same as last, with different sutures (lateral knotted and ordinary). 256 OPERATIONS UPON THE TENDONS AND TENDON-SHEATHS. Fig. 232. — Bayer's Method of Tendon-lengthening: — A, The lines of through-and-through division of one-half the width of the tendon are shown. Fig. 233. — B, The appearance of the tendon after traction and the gliding of the longitudinal fibers past each other. down its center, as far as necessary to furnish the needed length, the ends of the split portion are divided transversely, or slightly obliquely, in opposite direc- Fig. 234. — A less Common Form of Tendon-lengthening: — A, The preliminary rectangular incisions. Fig. 235. — B, The subsequent appearance of the tendon after traction upon its ends. tions. They are then glided past each other and fastened laterally near their ends by two or more sutures passing through their combined thickness (Fig. TENDON-LEXGTHENIXG. 257 224, A). (3) By central longitudinal splitting of tendon with transverse division of the split ends and their approximation, end to end; — Somewhat similar to the method just described, except that the extreme ends of the split portions are sutured end-to-end, rather than surface-to-surface (Fig. 226, C). (4) Bv zig-zag incisions; — Incisions, transverse to the length of the tendon, are made on opposite sides of the tendon, passing half-way across, and not placed directly opposite each other. As many as are deemed necessary are thus placed, and the tendon lengthened by traction (Figs. 241 and 242, A, B). (5) A tendon may be lengthened by Bayer's method of partial division, followed by gliding the uncut fibers; — one-half of the width of the tendon is divided from its lateral (right) margin transversely to its center — and the opposite half of the width is similarly divided from its lateral (left) margin transversely to its center, but at a distance of 2.5 cm. (1 inch) or more from the first trans- Figs. 236-239. — Less Common" Forms of Tendon-lengthening : — A, Double splitting of both ends, reinforcing where bent, and suturing split portions end-to-end; B, Bridging with gut, or reinforcing or relaxing with lateral knotted sutures; C, Bridging with twisted gut; D, Interpolation with another piece of tendon. verse division. By putting the tendon under tension, the margins of the trans- versely cut portions separate, and the fibers of the portions between the cuts may be made to glide past each other as far as desired. The parts which are about to glide entirely out of contact may be reinforced by a double suture. (Figs. 232 and 233.) (6) A tendon may be lengthened by being incised as shown in Fig. 234, A — followed by traction and the production of the effect shown in Fig. 235, B. (b) Operations for lengthening shortened severed tendons: — (I) By partially splitting one end, twisting the split half, and suturing it to itself and to the end of the opposite end. Calculating the required amount of tendon needed, the upper end of the tendon is partially split, twisted upon itself, and sutured to itself — and its free end sutured to the opposite lower end of the unsplit tendon (Fig. 227, D; and Fig. 228, A). (2) By partially .splitting both ends, twisting the split portions and suturing them to themselves 17 258 OPERATIONS UPON THE TENDONS AND TENDON-SHEATHS. and to the end of the opposite end. This is the application to both ends of the principle applied in "1" to one end (Fig. 229, B). (3) By partially split- ting both ends, twisting the split portions and suturing them to themselves and laterally to the opposite end (Fig. 230, C). (4) By distance suturing, or bridging, with catgut; — The ends are approximated by lateral knotted sutures, as far as possible, then a continuous catgut suture is run back and forth between the ends and between the lateral knotted sutures, partially filling in the gap by catgut strands, upon which lymph and blood are poured, and, together with the catgut, organized (Figs. 237 and 238, B and C; and Fig. 243, C). (5) Tendon lengthening by means of interposed silk sutures (Lange's method); — If the end of a severed tendon is not long enough to reach to the opposite end of the tendon, or to the site cf its periosteal insertion, it may be attached to this opposite end, or periosteum, by means of one or more stout silk sutures introduced in the fashion of a mattress suture. Experience has shown that tendon will form along this intervening silk and thus continue the con- tinuity of the tendon. Especially careful technic has to be employed, as septic infection is likely to invalidate the result. Four strands are used in ordinary tendons — and eight to twelve in tendons the size of the quadriceps extensor. The silk, which is stout, is boiled in 1-1000 bichloride of mercury solution. With a long, straight needle, the silk is introduced in the manner illustrated in Fig. 240. When the knot is tied tightly, the pull comes squarely from the Fig. 240. — Lange's Method of Tendon-lengthexing by Means of. Interposed Silk Sutures: — The method of introducing the suture is here shown in the case of a small tendon. Several sutures are used in larger tendons, evenly distributed throughout the substance of the tendon. points of emergence of the silk from one end of the tendon, to the points of entrance into the opposite end, directly in the long axis of the tendon. A drain for forty-eight hours is used, to carry off the fluids of the wound. Following the union of the tendon-ends, the tendon-sheath, if it have been incised or other- wise injured, is repaired with catgut sutures, as far as possible. In exposing the tendon, the sheath should not have been needlessly freed, for the vessels of the tendon reach it through the sheath. The overlying muscles are brought together with buried catgut sutures. The skin-wound is then closed — and the limb immobilized upon a splint, which will insure relaxation of the part. Pas- sive and active motion should be begun as soon as sound healing has occurred. Comment. — Many of the methods of nerve-lengthening are equally applicable to tendon-lengthening (pages 163 to 165). Not only may tendon-lengthening be accomplished by processes of plastic elongation in the sense of bringing into position undetached portions of tendon — but elongation may be also accomplished by the interposition of tendon substance, in those cases where the gap is too long to be bridged by other means, as in the similar operation for nerve-lengthening. The two most ordinary ways are the following; — (a) A piece of tendon of the required length and as nearly the desired size as possible, taken from a human being just operated upon, or TEXDOX-LEXGTHEMXG. 259 from a lower animal, is inserted into the interval between the severed ends, which have been freshened, and is sutured to both ends of the main tendon by longitudinal peripheral sutures, or other method (Fig. 239, D). (b) Half the thickness, and as much of the length as required, of part of the same or of one of the neighboring tendons of the patient is taken, and sutured, as Figs. 241-243. — Tendon-lengthening: — A, Poncet's accordion method (in case of tendo Achillis) — incisions partly across tendon; B, Same, showing amount of lengthening by traction upon tendon; C, Bridging with gut, reinforced with decalcified bone-cylinder. above, into the gap. The wound is treated as after other forms of tendon- lengthening. The interpolated tendon probably disappears, as such, after serving as a framework. TENDON-SHORTENING. Description. — The shortening of a tendon for the purpose of increasing the action of a muscle which has become impaired by the elongation of its tendon, — or for the purpose of improving a deformity (as the shortening of the tendo Achillis for talipes calcaneus). Operation. — Having exposed the involved tendon, its shortening may be accomplished in one of several ways; — (r) By excision of a piece of the tendon, with the union of the resulting ends by one of the methods of tenorrhaphy. (2) By oblique- division of the tendon, followed by gliding of the ends in such a way as to lessen the length of the tendon, and the suturing of the ends as in Fig. 244, A. (3) By division and shortening of the tendon, followed by the beveling of one end into a wedge, and the splitting of the other end — and the suturing of the wedge into the split portion, thus using up the excess of length (Fig. 246, C). (4) By the figure of Z method (Fig. 245, B); — make a vertical incision down the center of the tendon from F to K, and transverse 20O OPERATIONS UPON THE TENDONS AND TENDON-SHEATHS. ones along E F and K L. Having drawn the cut portions apart, shorten each piece by removing the ends at G H and I J. E F and G H are then sutured Figs. 244-247. — Tendon-shortening: — A, Portion of tendon excised obliquely and sev- ered portions sutured end-to-end, in direct contact or overlapping (reverse of Fig. 225, B); B, Z-shaped incision is made, followed by excision of E F G H and I J K L, after which E F is sutured to K L: C, Following excision, ends of tendon are sutured in form of mortise; D, Ex- cision of portion of tendon by transverse incision, followed bv mattress-suturing of opposite ends (portion between circular transverse incisions is here excised). together, and I J and K L — as well as the vertical line of division. The wound, following the operations for tendon-shortening, is closed and treated as after Fig. 248. — Hoffa's Method of Tendon-shortening: — A, The manner of inserting the through-and-through suture. Fig. 249. — B, The appearance of the tendon after the tightening and knotting of the suture. TENDON-GRAFTING. 261 tendon-lengthening. Another form of tendon-shortening is shown in Fig. 247, D, where a portion of tendon is removed. (5) A tendon may be shortened by passing through its substance, lengthwise, two stout silk sutures after the fashion of the cords in Venetian blinds (Fig. 248, A) — traction upon which, and knotting will produce the shortening shown in Fig. 249, B, Hofta's method. TENDON-GRAFTING. Description. — Tendon-grafting, tendon-transplantation, or tendon-im- plantation, as the operation is variously termed, is the attachment of the distal end of a divided tendon into a neighboring sound tendon of the same general group or function. The attachment is sometimes made laterally, without the division of the involved tendon. A limb may be tunnelled and a tendon of one group drawn entirely through the limb and sutured to a tendon of another group on the opposite aspect. Indications. — (1) Those cases in which so much of the tendon has been destroved that its reconstruction is impossible — and the damaged tendon Fig. 250.— Tendon-grafting :— Of sound extensor of great toe into impaired anterior tibial ; A, Tendon of tibialis amicus; B. Proximal end of extensor proprius hallucis, which has been severed from lower end, C, and engrafted upon anterior tibial tendon; D, Innermost tendon of extensor brevis digitorum. is therefore grafted to a neighboring tendon (for instance, should one of the four tendons of the flexor sublimis or profundus digitorum be too extensively damaged for union of the proximal and distal ends, its distal end may be 262 OPERATIONS UPON THE TENDONS AND TENDON-SHEATHS. attached to one of the neighboring sound tendons of the same muscle). (2) Those cases in which a group of muscles, or a single muscle, has been para- lyzed — and one or more of the tendons of the paralyzed group is therefore grafted to a tendon of an unparalyzed group (for instance, if the tibialis anticus were paralyzed and the extensor propius hallucis intact, the tendon of the latter may be grafted upon the tibialis anticus) (Fig. 250). Where the tendon of the muscle from which the power is to be derived is of comparatively Figs. 251-254. — Tendon-grafting : — I. — Where the tendon of the muscle supplying the power is of comparatively little importance (shown on the right, in light), the entire sound tendon is grafted upon the impaired tendon (shown on the left, in dark). (Modified from Vulpius.) Figs. 255-259 — Tendon-grafting: — II — Where the tendon of the muscle supplying the power is of greater importance (shown on the right, in light), only a portion of the sound tendon is grafted upon the impaired tendon (shown on the left, in dark). (Modified from Vulpius.) little importance functionally, and the paralyzed muscle is of more importance, the entire sound tendon may be diverted into the paralyzed muscle (Figs. 251-254). But where the tendon of the muscle which is to supply the power is more important than the paralyzed tendon, then but a portion of the sound tendon should be diverted into the paralyzed one (Figs. 255-259). OPERATION FOR UNITING TENDON TO PERIOSTEUM. 263 Operation. — Having exposed the field of operation by an incision harming the adjacent structures as little as possible, and having isolated the involved and the sound tendons, the technic of grafting may be accomplished in one of several ways — the chief of which will be here mentioned; — (a) Tendon- grafting by lateral attachment : — In the case of a divided tendon, the distal end is freshened by an oblique paring (Fig. 260, A). In the case of a paralyzed (undivided) tendon, it is divided obliquely (also A, Fig. 260). That portion of the sound tendon to which the involved tendon is to be at- tached is freshened upon its lateral aspect — to which the obliquely divided distal end of the injured, or paralyzed, tendon is now sutured with gut by peripheral coaptation sutures, or other form of suturing. Sometimes the paralyzed tendon is not divided, but its lateral aspect freshened, just as in the case of the sound tendon — these aspects being then brought together and sutured (Fig. 261, B). Especially would this be indicated where it is possible for the struc- ture of the paralyzed muscle eventually to re- gain its functioning, (b) Tendon - grafting by implantation : — The sound tendon is split en- tirely through its center, over an area sufficiently long to accommodate the tendon to be grafted. Freshen the distal end of the involved tendon (injured or paralyzed) by paring both sides in a beveling or wedge- shaped fashion. The wedge-shaped piece of tendon is then inserted between the lips of the split tendon and held in place by two or more Figs.260-262.— Tendon-grafting :— A, Grafting end of di- vided tendon into lateral aspect of undivided tendon ; B, Grafting undivided tendons laterally; C, Implantation of beveled end of tendon between the split portions of sound tendon. gut sutures passed trans- versely through both tendons (Fig. 262, C). The wound is finally closed in the usual way — and the limb put up upon a splint in such a position as to secure relaxation of the parts. OPERATION FOR UNITING TENDON TO PERIOSTEUM. lange's method. Description. — It sometimes happens that the end of a divided tendon can not be made to reach its normal site — it is then to be sutured either to a neigh- boring tendon or into adjacent periosteum or bone, as near to its original insertion as possible. In the case of uniting it to the periosteum, the technic is as follows: — a flap of periosteum, from 1 to 2 cm. ({ to f inch) in length is detached with periosteal elevator, in convenient relationship to the tendon. 264 OPERATIONS UPON THE TENDONS AND TENDON-SHEATHS. The end of the tendon is then cut obliquely in such a way as to present a favor- able surface, and this freshened surface is sutured with fine chromic gut to the Fig. 263. — Lange's Method of Uniting Tendon to Periosteal Flap. outer surface of the periosteal flap. The neighboring soft parts are brought normally about the site of operation, buried sutures being used where indicated — and the wound closed. (See Fig. 263.) Fig. 264. — Wolff's Method of Implanting Tendon into Bone. OPERATION FOR UNITING TENDON TO BONE. wolff's method. Description. — Instead of uniting the end of the tendon to periosteum as' in the operation just given, the tendon may be implanted within the bone and REPAIR OF RUPTURED OR DIVIDED TENDON-SHEATHS. *5 surrounded by the periosteum. The periosteum is incised over the site where the end of the tendon is to be implanted. After having retracted the two lips of the incised periosteum, a groove is chiselled in the exposed bone. The bevelled end of the tendon is buried in this groove — and the margins of the periosteum are sutured to the implanted tendon and to each other. The wound is closed without drainage, unless otherwise indicated. (Fig. 264.) TRANSPLANTATION OF TENDON WITH ITS OSSEOUS INSERTION. Description. — It occasionally happens, after fracture of the patella (especially when repair is not undertaken until after contracture has taken place) and after rupture of the tendon of the quadriceps extensor or the tendo Achillis, that it is impossible to approximate the fragments of bone, or ends of the tendons, without the transplantation proximally of the osseous prominences into which the tendons are inserted. Let it be supposed that the quadriceps extensor tendon has been ruptured a short distance above the patella; — When the site of rupture is exposed, it is found impossible to bring the ends of the tendon together. The vertical incision for its exposure is continued down- ward. The patella, ligamentum patella?, and tibial tubercle are exposed. The tibial tubercle is now chiselled from the tibia — and any adhesions which bind the parts down are freed. The ruptured extensor tendon is now sutured — during which the separated tibial tubercle has glided upward upon the tibia into a new position. In this higher position upon the anterior aspect of the tibia, sufficiently far below the upper margin of the tibia not to interfere with the joint-movement, a steel nail is driven through the tibial tubercle — a nail sufficiently long to be left protruding through the skin to be removed after union is complete. The soft parts are then closed about the nail — as well as over Fig. 265. — Transplantation of Tendon with its Osseous Insertion. the site of the ruptured tendon. This same technic may be applied to the tendon of the triceps. (Fig. 265.) REPAIR OF RUPTURED OR DIVIDED TENDON-SHEATHS. Description. — A tendon-sheath may be accidentally ruptured by violent action or injury, as in the case of the long head of the biceps, or may be pur- posely divided in an operation temporarily to expose the tendon within, or 266 OPERATIONS UPON THE TENDONS AND TENDON-SHEATHS. the underlying parts beyond (as the division of the sheath of the tendo Achillis for tenorrhaphy, or the division of the common sheath of the peroneus longus and brevis tendons temporarily to retract the contained tendons in the excision of the ankle-joint). Operation. When the object is to expose the tendon and sheath alone, a slightly curved incision is made, coming over the sheath above and below but somewhat to one side at the site of rupture (so that the cicatrices of skin and sheath will not fall directly over each other). Or a straight incision may be made directly over the tendon-sheath. When the sheath is divided in the course of some other operation, the position of the incision will have been determined by the special operation. The part is then put into that Fit 266. — Excision of Tkndon-sheath : — Sheath is seized with forceps and divided circularly around the tendon at both ends of the involved area. position which will relax the tendon to the greatest extent — the tendon and sheath are then clearly located, and the former placed within the latter, while the edges of the sheath are held aside. The sheath is then carefully dropped together over the tendon and the sheath-margins sutured with a fine continuous gut suture. The wound is now closed and the limb put up so as completely to relax the tendon. In about ten days the limb is taken out of the splint at intervals and passively moved, to prevent adhesion of tendon to sheath — while the surgeon's left thumb placed over the tendon during manipulation holds it in place within the sheath and relieves part of the strain upon the recently sutured sheath. Comment. — In cases of paralysis, the peroneus longus has been grafted EXCISION OF TEXDOX-SHEATHS. 267 into the tendo Achillis, into the tibialis posticus, and even into the tibialis anticus; — the tibialis anticus into the extensor proprius haUucis; — the sartorius into the rectus femoris, and the like. Tendons are sometimes approximated by tunneling under other structures. EXCISION OF TENDON-SHEATHS. Description. — The removal of more or less of the sheath of a tendon. Generally resorted to in cases of obstinate tenosvnovitis. Operation. — The special tendon-sheath involved is exposed by an incision directly over it, — or by an incision beginning and ending over the sheath but passing to one side of the sheath throughout the rest of its course, thus en- abling a skin-flap to be turned to one side, so that when replaced its scar will not fall directly over the tendon. Having retracted the soft parts, the tendon-sheath is entirely isolated, with care, from the neighboring structures — especially from those forming its bed. The sheath of the tendon is now divided circularly around the tendon, above and below the diseased portion — but without cutting the tendon itself. Having completed the two circular incisions at either end, the sheath is split in the long axis of the tendon— and thus laid completely open — and may be removed in one piece (Fig. 266). Any diseased portions of the contained tendon found, should be scraped. The skin-flap is then united — and the limb put up so as to immobilize the tendon. CHAPTER IX. OPERATIONS UPON THE LIGAMENTS. SYNDESMOTOMY. Description. — Division of ligaments. Generally performed for the con- traction of ligaments occurring as the cause, in whole or in part, of some of the deformities. Operations. — The ligament, or ligaments, at fault may be divided by the subcutaneous or open method — the latter being preferable. In the open method the involved ligaments are exposed by the simplest and safest route — and divided in the same general manner as the division of tendons by the open method — and the wound similarly treated. SUTURING OF LIGAMENTS. The suturing of ligaments is performed upon the same general principles as is tendon-suturing (see page 251). LENGTHENING OF LIGAMENTS. Description. — Lengthening of ligaments which have become shortened through disease or injury — especially in cases of deformity. Operation. — Many of the same methods involved in tendon-lengthening are applicable to the lengthening of ligaments. Where a ligament is attached to a bony prominence, this has been chiseled off and displaced to a neigh- boring site and there nailed (as in the case of the ligamentum patella?, where the tubercle of the tibia has been displaced to the upper portion of the tibia — but with uncertain success). (See Tendon-lengthening, page 254.) SHORTENING OF LIGAMENTS. Description. — Shortening of ligaments which may have become lengthened through disease or injury. Operation. — Many of the tendon-shortening methods may also be ap plied to elongated ligaments. As in the above operation, where a ligament is attached to a prominence of bone, this may be chiseled from its normal site and nailed to an adjacent site (as in the case of the ligamentum patellae, where the tibial tubercle has been displaced lower down the tibia). Note. — Most of the work done upon Ligaments will be found described in special writings upon orthopedic surgery. (Also see Tendon-shortening, page 259.) 268 CHAPTER X. OPERATIONS UPON THE FASCIA. FASCIOTOMY OR APONEUROTOMY. Description. — Fasciotomy or aponeurotomy signifies the division of bands or planes of contracted fascia. The term is used with especial reference to operations upon contracted palmar and plantar fascia, in the deformities of those parts — and in connection with the contracted fascia lata, and the contracted fascia following burns, and the like. Operation. — The division is usually accomplished by the subcutaneous or open method. The general principles of the operations will be here de- scribed — the steps of the special operation will be determined by the anatomy and contraction of the part involved, (a) Fasciotomy by the Subcutaneous Method : — Where the contracted fascia is in the form of narrow bands, a sharp-pointed tenotome with a narrow cutting-edge (of about 6 mm., or J inch) is best. Where the fascia is contracted in the form of planes, a sharp- pointed tenotome with a longer cutting-edge is to be preferred. The short- bladed fasciatome, however, is the safer form of tenotome, as far as damaging the neighboring structures is concerned. The instrument is inserted flatwise beneath the fascia — the cutting-edge is then turned toward the contracted fascia, which is rendered further prominent by extending the part, and the special band of fascia is divided against which the knife-edge presses — then another band is sought — new bands appearing to spring into existence as others are cut — the tenotome being carefully pushed in different directions until all the bands are cut. Just before each band is cut, the tip of the surgeon's left forefinger should be placed over the tense band of fascia and make counter- pressure, and thereby serve as a guide of the progress of the knife toward the skin. Sometimes all the bands can be divided through one introduction of the tenotome — in other cases the tenotome is introduced at several sites. The tenotome is sometimes introduced between the skin and the fascia and divides the latter by cutting downward, which is somewhat more risky. When all or nearly all of the ligaments have been divided which the tenotome can detect and reach, the part is fully extended, breaking down the remaining ones if any. The tenotome wound or wounds are then closed by a suture or two and the limb immobilized in a splint, which is worn for a long period. (b) Fasciotomy by the Open Method : — A number of limited incisions may be made from without inward, through the skin and fascial bands, — or the involved fascial bands may be exposed through a skin-flap which is raised and retracted to one side, or through a long straight incision whose margins are retracted laterally. Following the thorough exposure of the parts, in the last method, the contracted fascia is dissected out wherever present. In either one of the open methods, the part is fully extended after the operation, the skin-wound closed and the part immobilized. Note. — Much of the work done upon the Fascia will be found described in special writings upon orthopedic surgery. 269 CHAPTER XI. OPERATIONS UPON THE BURSAE. PUNCTURE OF BURSAE. Description. — Generally resorted to for exploring the nature of the bursal contents, or for injecting fluid for destroying its secreting surface, or simply for the evacuation of its contents. Operation. — The needle of the syringe is introduced, with the usual precautions, into the interior of the enlarged bursa — piercing the skin as directly over the. cyst as possible and passing by the safest route through, or preferably between, the overlying tissues. The site of the introduction will depend upon the special bursa. INCISION OF BURSAE. Description. — Usually resorted to for the evacuation of pus, or other fluid; or to expose the interior for curettage. Operation. — An incision is made down to the bursal sac — selecting a site where the least important structures will be encountered and the sac most readily reached. The intervening parts having been retracted to one or both sides and the bursa steadied by the surgeon's left forefinger and thumb, its wall is incised with a scalpel — after which the special object of the operation is accomplished. The steps of the operation will depend upon the special bursa. In some cases the incision will pass from the skin directly into the bursal cavity, without any intervening dissection. EXCISION OF BURSAE. Description. — Generallv done for the removal of chronically inflamed or diseased bursa? — the majority of the latter cases being tubercular. Operation. — The exposure of the enlarged bursa is accomplished as described under the operation for incision. The surrounding parts having been then drawn well aside, the entire bursal sac is dissected from its bed, partly by blunt and partly by sharp dissection — carefully guarding the neigh- boring structures, and especially those joints with which the bursa may communicate. Whenever possible, the communication with a joint should be closed by suturing together the edges of the neck of the excised bursa. The wound is then closed, or drained, as indicated. 270 CHAPTER XII. AMPUTATIONS, GENERAL CONSIDERATIONS. Definition. — Amputation — the removal of a limb through its continuity. Disarticulation — the removal of a limb at a joint. Indications. — Any injury, disease, or malformation rendering retention of the limb incompatible with life or comfort; — avulsion of limb; compound fracture; compound dislocation; fracture with great comminution of bone; laceration of important vessels; extensive contusion; extensive laceration; gun- shot injuries; aneurism; effects of heat and cold; gangrene; extensive bone disease; tumors; elephantiasis; tetanus; snake-bite; deformities. Amputa- tions are far less frequent in modern conservative surgery than formerly — limbs now being often saved by excision, and other operations, which were at one time sacrificed. Preparation of Patient. — The constitutional preparation of the patient — and the previous and immediate local antiseptic preparation of the part — ■ are the same as for any major operation. The part should be shaved, where its condition admits of this preparation — and should come to the table with the preliminary dressing in position. Position of Patient, Surgeon, and Assistant. — (i) Patient rests upon back, lying near side of table, and nearer the upper end for amputations of the upper extremity, that the limb may be held out from the table at a right angle; — and nearer the lower end for amputations of the lower extremity, that the limb may be held both out from the table, and also over the end of the table. (2) Surgeon so places himself as to enable him to grasp with his left hand the patient's limb between the saw-line and the trunk — which will place him upon the outer side of the right limbs, and on the inner side of the left limbs (between the table and the left limbs) (Fig. 267). This is the general rule, of almost universal application (and will not be repeated with each operation) — where exceptions occur they will be mentioned with the special amputations. In amputations of the upper part of the left arm and upper part of the left thigh, especially the latter, it may be more con- venient to stand to the outer side of the limb, in which case the left hand grasps the limb below the saw-line. This avoids wedging one's self between the table and the upper part of the limb, which, in the case of the lower limb particularly, cannot be stretched out at a right angle from the table. (3) As- sistant : — grasps the part of the limb, wrapped in an aseptic towel, that is to be removed, standing facing the surgeon, so that he can better steady the limb against the movements of the saw than if he stood at the end of the limb — his arms being thus parallel rather than at a right angle to the working of the saw. Instruments. — Esmarch's rubber bandage and tourniquet; amputating knives, long and short; scalpels, various; cartilage knives; Catlin knives; saws, ordinary amputating, bow, and butcher; small thin saw, for spicule of bones; periosteal elevators; metallic retractors (for flaps); linen retractors 271 2 7 2 AMPUTATIl >\S. (for flaps); broad metallic or ivory spatula? and retractors to hold soft parts out of way; dissecting and toothed forceps; artery-clamp forceps, numerous; rongeur forceps; scissors, straight and curved, sharp and blunt; tenacula; probes; grooved directors; ligatures and sutures, silk, catgut, plain, chro- mic, silk-worm gut, tendon; needles, straight and curved; needle-holder; Fig. 267. — Illustrating Position of Surgeon in Amputating: — Standing to outer side of right and to inner side of left limbs — manipulating knife with right hand, and steadying limb (also retracting soft parts) with left hand placed between saw-line and trunk. — Hands of assistant are shown in various positions, grasping and supporting part to come away. This may be taken as a bird's-eye view of patient in dorsal decubitus. drainage-tubes; irrigator and irrigation fluid; normal salt solution and instru- ments for intravenous infusion; dressings for stump; splint. Special instru- ments will be mentioned under special amputations. Anesthesia in Amputations. — While general anesthesia (preferably nitrous oxid and ether) is ordinarily used in amputations, spinal analgesia and neural infiltration may be used where especially indicated (where, for instance, general anesthesia is contraindicated) . Control of Hemorrhage in Amputations. — Hemorrhage may be con- trolled in one of two general ways — by some form of tourniquet or constrictor or by digital compression. (A) Control of hemorrhage by tourniquet GENERAL CONSIDERATIONS. 273 or constrictor: — Several forms of tourniquet control are in use; — (1) Esmarch's Broad Rubber Bandage, and Tourniquet of Rubber Tubing or Narrow Band; — These constrictors may be used in two ways; — (a) Use of Bandage and Tourniquet (Esmarch Method) ; — The bandage is applied from the fingers or toes upward, for example, nearly to the shoulder or hip — the tourniquet is then applied above the bandage — and the bandage re- moved. This saving to the patient of the blood in the limb is more particu- larlv indicated when the limb is healthy and the patient anemic — otherwise a patient who loses a limb can also generally afford to lose its proportional amount Fij;- 268.— Illustrating Methods of Hemorrhage Control:— Wyeth's method by rubber tourniquet and needles, at right shoulder-joint.— Same at left hip-joint.— Ordinary rubber tourniquet and pad at left shoulder-joint, reinforced (kept from slipping) by strips of roller-bandage. — Same, at right hip-joint.— Use of Esmarch rubber tourniquet above left elbow.— Exsanguination of limb by Esmarch rubber bandage, followed by application of rubber tubing 1 or Esmarch rubber tourniquet) above left knee. — Compression of right femoral by Petit type of tourniquet.— Preliminary ligation of left femoral. — Digital compression of main arteries at right wrist. of blood. (Fig. 268, left leg.) (b) Use of Esmarch's Tourniquet Alone;— The limb is held elevated for about three minutes (this empties the veins mechani- cally and causes the arteries to contract reflexly, thus lessening the blood to the limb; but if the elevation be too long, the arteries recover, dilate, and let in 18 274 AMPUTATIONS. more blood) — and, during the time of this elevation, a healthy limb may be massaged downward to aid exsanguination — the tourniquet alone is then applied as high up the limb as indicated for the special operation, no form of bandage having been previously applied (Fig. 268, left arm). In operating any- where below the elbow or knee, the constriction should be applied just above the elbow or knee, — and in amputating anywhere above the elbow or knee, the con- striction should be applied as near the trunk as possible. This is the general method of hemorrhage control in the majority of cases. The objections which have been urged against the Esmarch bandage and tourniquet, or tourniquet alone, are — the increased bleeding following the operation, from temporary vasomotor paralysis; the possible lowered vitality of the com- pressed parts; occasional temporary paralysis of nerve-trunks from pressure; and the possibility of forcing pathological products into the body. The great advantage over these disadvantages, however, is that it controls all bleeding — and its use, therefore, is advisable in spite of the disadvantages. (2) Tourniquet of the Petit Type; — The entire limb is compressed, with special pressure over the main artery (Fig. 268, right thigh). (3) Tourniquet of the Signorini Type; — No circular constriction is used — a pad on one arm of the tourniquet compresses the artery against a counter-pad on the other arm of the tourniquet opposite or beneath the limb or body. (B) Digital compression of the main artery : — Compression is generally made through the skin — but may be made directly upon the main vessel through an incision made immediately over it. (Fig. 268, right hand.) The office of hemorrhage- control by digital compression is sometimes delegated to a single individual in a hospital. Note : — Special methods of controlling the circulation will be mentioned in connection with special amputations, especially those about the shoulder- and hip-joints (Fig. 268, shoulders and hips). Also see dis- articulations at shoulder and knee (pages 374 and 433). THE GENERAL TECHNIC IN AMPUTATING. LOCATION OF LINE OF BONE-SECTION, OR DISARTICULATION. The determination of the saw-line in an amputation, or the disarticula- tion-line in a disarticulation, is the first step — generally marking the upper limit of the operation — and is the necessary guide to the subsequent steps. Level at Which the Bone, or Bones, are to be Sawed. — Is to be deter- mined by the individual case — and its position should be such that enough healthy tissue will be provided for, between the saw-line and the upper limit of the diseased or injured tissues to be removed, to furnish ample covering of soft parts to protect the stump without undue tension. Level of Joint-line at which Disarticulation is to be Done. — The position of the articulation-line is, of course, fixed — it is only necessary to recognize it anatomically — and to determine whether sufficient sound tissue intervenes between joint-line and upper limit of the parts to be removed to afford covering satisfactory in quantity and quality to protect the stump. Otherwise the disarticulation will have to be converted into an amputation at a higher level. Relation of Saw-line to Length of Flap, and Vice Versa. — While the position of the saw-line determines the amount of tissue (and, conse- quently, length of flap or flaps or of circular covering) which will be required to cover the sawed bone — so also does the choice of the method of amputation to be used largely determine the amount of bone to be sacrificed (and, con- sequently, the length of the resulting limb) — for (a), In circular amputations LOCATK >N < >F LIMITS OF SKIN INCISIONS. 275 and amputations by equal flaps, the minimum amount of bone is sacrificed; and (b), In amputations by a single flap, the maximum amount of bone is sacrificed. LOCATION OF LIMITS OF SKIN INCISIONS. A total covering of soft parts equivalent to ih diameters of the limb at the saw-line is the general rule of allowance. It is necessary, therefore, to determine the lower limit of the skin incision, as this forms the lower limit of the total covering. This limit may be determined accurately or approx- imately. In Circular Amputations. — (a) Accurately; — Find the circumference of the limb at the saw-line by means of a metallic tape-line (say, 15 cm., or 6 inches) — one-third of the circumference will give the diameter (say, 5 cm., or 2 inches). Therefore, to furnish ih diameters (say, 7.5 cm., or 3 inches) the lower limit of the skin incision would have to be 3.8 cm., or 1^ inches, below the saw-line, (b) Approximately; — Place the thumb at the saw-line on the anterior aspect of the limb (the nail facing the junction of the limb with the trunk) and the tip of the index-finger immediately opposite on the posterior aspect of the limb (without compressing the soft parts). Xow, keeping the thumb where first placed, and keeping the distance between the tip of the thumb and tip of the index unchanged, rotate the hand around (making these two fingers act as the two arms of callipers) until the tip of Fig. 269.— Relation of Skin Incision to Saw-line: — Methods of amputation by equal flaps, circular covering, and unequal flaps are shown each to furnish a covering of \ l ,' 2 diameters of limb at saw-line. the index rests upon the anterior aspect of the limb in a vertical line below the tip of the thumb. The distance between the thumb-tip and the finger-tip will be the diameter of the limb at the saw-line — and three-fourths of this measurement will insure a covering of the requisite \\ diameters of the limb. In calculating the covering in the circular method of amputating, it is to be remembered that as the circular covering will be sutured in a straight line. either from before backward or from side to side, practically the covering may be regarded as being furnished by two aspects of the limb, either the front and back or the two sides — that is, as though furnished by two equal flaps (Fig. 269). In Equal Flap Amputations. — Same as for the circular method, whether calculated accurately or approximately (Fig. 269). In Unequal Flap Amputations. — (say the anterior twice as long as the posterior flap) ; — (a) Accurately; — Finding the circumference and diameter in the above manner (the measurements being as there given) — the lower limit of the anterior flap would be 5 cm. (2 inches) below the saw-line, and the lower limit of the posterior, 2.5 cm (1 inch) below, (b) Approximately; — Having gotten the measurement of the full diameter marked out on the 276 AMPUTATIONS. anterior aspect, as explained above, this will represent the length of the anterior flap — and one-half of this measurement will give the length of the posterior flap (Fig. 269). INCISION OF SKIN AND FASCIA. In general terms, it is considered that the aspects of the limb furnish an average covering of 1^ diameters of the limb at the saw-line — whether this covering consist of skin alone, or of skin and muscle combined — and whether furnished by one or more aspects of the limb. In the circular method of amputating, the covering is furnished equally from all aspects of the limb. In the method by equal flaps, it is furnished equally by two aspects of the limb. And in the method by unequal flaps, the inequality of length may be parceled out in any way indicated, just so the total covering is equivalent to ih diameters at the saw-line. If the covering be from one aspect alone, as in the single flap or in the elliptical methods, the total diameter and a half comes from that one aspect. Where the amputation is done through a site of maximum contractility of skin and muscles (as through the lower half of Fig. :7c— Incising Skin and Fascia in Circular Amputation: — I, Position of long knife in incising upper, further and part of lower aspects of limb. the arm, or the lower half of the thigh), a somewhat greater allowance may become necessary (even to the extent of two diameters). Where the ampu- tation is done through a site of minimum contractility of skin and muscles (as through the dense tissues of the palm of hand and sole of foot), a somewhat less allowance than the average may be provided. Manner of Incising Skin and Fascia in Circular Amputations. — Whether a stump is going to be covered by skin alone, or by skin and muscle, the skin is invariably cut first and cut separately. Standing to the outer side of the right and inner side of the left limbs, grasp the part above the level of the skin incision with the left hand and retract the skin upward, either entirely alone or aided by an assistant (the assistant's aid being more necessary in large limbs) — the retraction being evenly maintained throughout. This is done to provide as ample a skin covering for the muscles as possible, for, as the average contractility of the skin involved in an amputation is greater INCISION OF SKIN AND FASCIA. 277 than the average contractility of the muscles involved, if the skin and muscles were divided on the same level it would subsequently be found difficult, or impossible to make the skin meet over the cut muscles. Therefore this circular division of skin, which has been well drawn up under the knife-cut prior to incising, means an actual division of the skin a little lower than the position of the knife on the limb indicates — but insures having a somewhat fuller measure of skin than if it were cut without retraction. Having thus retracted the skin, take a long knife with a blade one-and-a-half times the diameter of the limb to be removed — and, holding it in a full hand, like a pruning-knife, pass the arm under the patient's limb and bring the cutting- edge into contact with the upper surface of the limb, the back of the knife being horizontal and pointing upward, the heel of the knife being over the center of the limb, and the point projecting beyond the limb toward the surgeon. Beginning the incision with the heel of the knife, steadily and evenly draw the knife from heel to point, passing with one sweep of the knife Fig. 271— Incising Skin and Fascia in Circular Amputation : — II — Position of I01 incising nearer and remainder of lower aspect of limb. through three-fourths of the circumference (Fig. 270). The knife is then with- drawn and reinserted with its heel at the place of beginning of the incision on the supero-external surface (in operating on the right limbs), and, with one sweep, passes through the remaining fourth of the circumference (Fig. 271). The attempt to make the complete circuit with one sweep is not to be recommended, as the ends of the resulting wound are not apt to be in line, and the wound, generally, imperfectly made. This circular skin incision is sometimes made with a small knife. The assistant can aid the surgeon by rotating the limb to meet the knife. The blade is held perpen- dicular to the skin throughout. The incision passes through skin and fas- cia, but not into muscles. Owing to the unequal retraction which some- times takes place upon the different aspects of a limb, it may be necessary 278 AMPUTATIONS. to plan one portion of the circular incision upon a lower level than the rest of the incision — this greater allowance of skin at this site will, however, be drawn up on a level with the rest of the circular incision, owing to the greater retraction there. So that what may appear as an oblique incision, will become circular and upon the same level after the division. Manner of Incising Skin and Fascia in Flap Amputations. — As in Fig. 272.— Incising Skin and Fascia in Flap Amputation: — I — In cutting rounded flaps. Fig. 273.— Incising Skin and Fascia in Flap Amputation :— II — In cutting rectangular flaps. the circular method, whether the covering is to be of skin alone, or of skin and muscles, the skin is invariably cut first and separately — and whether the flap be cut from without inward, or from within outward (by transfixion). The preliminary steps, as to position, retraction of skin, and general prin- FREEING SKIN AND FASCIA. 279 ciples involved, are the same as in making the skin incision in the circular amputation. When all is ready, the surgeon takes an ordinary scalpel of medium size, and, holding it as a violin-bow, enters its point into the skin vertically, at the upper limit of the base of the flap. The knife passes through skin and connective tissue, and as it travels vertically down one limb of the flap the cutting-edge is lowered until it forms less than a right angle with the surface being cut — when nearly the lower limit of the flap is reached, the knife rounds the corner of the flap — thence passes transversely across that aspect of the limb from which the flap is being taken — then similarly rounds the opposite corner — and thence travels vertically upward to a point cor- responding with the point of beginning (Fig. 272). Care should be exercised that each flap should measure one-half the circumference of the limb at its base, and one-half of the circumference at that part of its free end just above the rounded corners — and that these corners should be very bluntly, and not sharply, rounded (that they should be squarely rounded, as it were), for if they be too much tapered at their free ends, the}' will cover the stumps with difficulty and unsatisfactorily. Instead of cutting the entire flap with one sweep of the knife, each vertical limb and one corner of the flap should be made with one downward cut of the knife. While all flaps should be prac- tically square, with merely the corners rounded, an exception is made in the method of unequal rectangular flaps of skin and fascia (Teale's method) — the corners of the flaps being here right-angled, instead of rounded (Fig. 273). This is also the case in the conversion of a circular method of amputation into a flap method by two vertical incisions placed laterally — and even here the corners mav be rounded. FREEING SKIN AND FASCIA. Having incised skin and fascia, for either a circular or a flap amputation, the manner and extent of further freeing skin and fascia will depend upon whether the method is to be one of simply skin and fascial covering, or of skin, fascial, and muscular covering for the stump. Freeing Skin and Fascia in Simple Skin and Fascial Covering for Stump. — The skin and fascia, after having been divided, are partlv retracted and partly dissected back to the line of future division of muscles. The edges of skin and fascia (avoiding the separation of the one from the other, as the vessels reach the skin through the fascia) are grasped by the fingers of the left hand, lifted from the muscles, and drawn upward — and, while held in this position, and while under slight tension, the fascia is touched here and there at points where it especially binds along the line of its junction with the muscles and deep fascial planes, by a scalpel held at a right angle to the surface of the muscles and with its cutting-edge toward the part to be removed — and thus scoring of the skin and consequent damage to its blood-supply are avoided. The skin and fascia are, by this means, raised in one layer from the muscles — and the skin should be raised with all the underlying fascia possible — and the combined skin and fascia should be raised evenly up tc the future line of muscle division (Fig. 274). Freeing Skin and Fascia in Skin, Fascial, and Muscular Covering for Stump. — Special care is here taken not to separate skin and fascia from underlying muscles, any further than simply in the immediate line of original skin incision, and simply for the purpose of allowing of full retraction. The skin and fascia are here not picked up and separated from the muscles — ■ 2 8o AMPUTATIONS. the only knife-touches necessary being a few where the fascia has not been thoroughly divided and where it is necessary further to divide a fascial attach- ment here and there in order that the skin and fascia may retract as far as Fig. 274.— Freeing Skin and Fascia from Underlying Muscles. they naturally will unaided by manual retraction — and this is done by touching the points of binding at the bottom of the original incision, by the point of a knife held vertically. Fig. 275. — Retraction of Skin and Fascia. RETRACTION OF SKIN AND FASCIA. Where Stump-coverings are to be of Skin and Fascia Alone. — Having freed skin and fascia from the underlying parts, as above described, partly by retraction and partly by dissection, until the line is reached at which the muscles are to be divided, the skin and fascia are further retracted above DIVISION OF MUSI l.KS IN CIRCULAR METHODS OF AMPUTATION. 281 this line and are held out of the way by the hands of an assistant, or by re- tractors (Fig. 275). Where the Stump-coverings are to be of Skin, Fascia, and Muscles. — Retraction of skin and fascia from the underlying muscles, other than that which occurs unaided, is not practised. It is sought, on the other hand, to keep in contact, as one layer, skin, fascia, and muscles. DIVISION OF MUSCLES IN CIRCULAR METHODS OF AMPUTATION. In the Ordinary, or Infundibuliform, Variety of Circular Amputa- tion. — (For description, see page 303.) — (a) Division of More Superficial Muscles; — The position of surgeon, manner of holding limb, kind of knife and manner of manipulating it, are all the same as in making the skin incision. Fig. 276.— Division of Muscles in Infundibular Variety of Circular Amputation: — I — Di- viding more superficial muscles on level with retracted skin and fascia. The skin and fascia having been circularly incised and allowed to retract, the surgeon grasps the limb above the naturally retracted skin, and further retracts skin and fascia, putting, at the same time, the muscles upon the stretch by this upward retraction of the overlying parts, aided by an assistant in the case of larger limbs. The more superficial muscles are now divided circularly on an exact level with the retracted skin, by one sweep of a long knife passing, first, through three-fourths of a circle, followed by a second sweep through the remaining fourth (Fig. 276). It is not always possible to divide only and wholly what are generally understood as the superficial layers of muscles — it is only meant that one divides, in this first circular division, about one-half of the muscular covering of the limb, the knife sometimes dividing a group of muscles completely and sometimes only partially. To allow for unequal retraction, the muscles may sometimes have to be divided lower on one aspect of the limb than on another, (b) Retraction of More Super- >S2 AMPUTATIONS. ficial Muscles; — This layer of muscle tissue is now retracted as the skin was above it. It is not expected that the first muscle layer includes all and only the superficial muscles, and the deep layer all and only the deep muscles — Fig- 2/7- -Division of Muscles in Infundibular Variety of Circular Amputation :— II— Dividing deeper muscles on level with retracted superficial muscles. the former includes simply the more superficially placed, and the latter the more deeply placed muscles. There is no general use made of the scalpel in freeing the superficial muscle layer, as in the case of separating the fascia and skin from the muscles, but, where indicated, a touch of the knife may be used to Fig. 278— Division of Muscles in Cuff Variety of Circular Amputation— on a level with the turned-back cuff and fascia. enable the more superficial muscles to be evenly retracted, (c) Division of Deeper Muscles; — Having retracted the divided muscles more superficially placed, the more deeply situated muscles are now circularly divided on a DIVISION OF MUSCLES IN CIRCULAR METHODS OF AMPUTATION. 283 level with the retracted superficial muscles, and in a manner similar to the divi Fig. 279.— Division of Muscles in Modified Circular Amputation— showing flaps of skin and fascia turned back, the more superficial muscles divided, and the knife in the act of dividing the deeper muscles in the infundibular fashion. sion of the first layer (Fig. 277) . It is to be planned that this circular division of the deep muscles will come down upon the bone sufficiently far below the saw-line to provide for a periosteal flap, (d) Retraction of Deeper Muscles;— This is done preparatory to forming the periosteal covering. Note — it will thus be seen that, having divided skin and fascia lowest of all, the superficial muscles have been divided upon a higher level, and the deep muscles upon a still higher level — forming, thereby, when the bone is sawed, a hollow cone, whose apex will be formed by the sawed bone, whose base will be the margin of skin and fascia, and whose sides will be com- posed of the cut muscles (Fig. 302). In the Circular Amputation "a la Manchette," or Cuff Variety of Circular Amputation. — (For descrip- tion, see page 305.) — In this method, all the muscles are divided circularly down to the bone at one level, which is that of the reflected cuff of skin — cal- culating to come down upon the bone sufficiently far below the saw-line to form a musculo-periosteal covering (Fig. w n „ r o \ o pjg -2 8o. — Division of Muscles in Oval 2 7"y- Method of Amputation. 284 AMPUTATIONS. In the Modified Circular Amputation. — (For description, see page 306.) — After the flaps of skin and fascia have been retracted, the more super- ficial muscles are divided on a level with the retracted flaps — this layer of muscle tissue is retracted — and the deeper layer is divided upon a level with the retracted superficial layer — calculating to come down upon the bone far enough below the saw-line to allow for a musculo-periosteal covering (Fig. 279). The division of muscles being, in other words, just as in the ordinary circular amputation. This is the better way of dividing the muscles in the modified circular operation. Where, in the modified circular amputation, the muscles are all divided at one level (that of the retracted flaps), the muscles are di- vided as in the circular amputation a la manchette. In the Oval Method of Amputating. — (For description, see page 307.) -After having made the oval incision through skin and fascia, the muscles are divided directly to the bone — the knife entering the muscle tissue upon the line of the retracted skin and fascia. Along the queue, or vertical portion of the oval, which begins at, or just above, the saw-line, or disarticulation- line, the two lines of incision will coincide — parting below to follow the outlines of the oval — and meeting at the mid-point behind (Fig. 280). In the Racket Method of Amputating. — (For description, see page 308). — The principle here is the same as in the oval method. DIVISION OF MUSCLES IN FLAP METHODS OF AMPUTATION. In Amputating by Single Flap of Skin and Muscle. — (For description, see page 309.) — The skin-and-fascia flap having been outlined and incised, the muscles are cut, preferably from without inward (or may be cut from within outward, by transfixion), beveling inward, on a line with the retracted skin-and-fascia flap — the incision coming down upon the bone sufficiently far below the saw-line to provide for a musculo-periosteal covering (Fig. 281). In Amputating by a Single Skin-flap. — (For description, see page 311). — Having retracted skin-and-fascia flap, the muscles are divided cir- cularly at the saw-line, or disarticulation-line. In Amputating by Equal Flaps of Skin and Muscle. — (For description, see page 311.) —Same as by single flap of skin and muscle (Fig. 282). In Amputating by Equal Flaps of Skin. — (For description, see page 311.) — Same as by single skin flap. In Amputating by Unequal Flaps of Skin and Muscle. — (For de- scription, see page 313.) — Same as by single flap of skin and muscle. In Amputating by Unequal Flaps of Skin. — (For description, see page 314.) — Same as by single flap of skin. In Amputating by the Elliptical Method. — (For description, see page 315.) — As this may be considered a variety of single flap amputation (of either skin alone, or of skin and muscle combined), the manner of dealing with the muscle is here the same as in that operation. In Amputating by Teale's Method of Unequal Rectangular Flaps of Skin and Muscle. — (For description, see page 314.) — Upon the line of the retracted skin and fascia, the muscles are cut through the periosteum along the two vertical lines. The muscles are then cut through the periosteum transversely along the free margin of the retracted skin and fascia representing the end of the longer flap — all of the soft parts are then dissected up above the lower limit of the shorter flap, when the muscles opposite its lower limit are transversely divided through periosteum to bone. Method of Cutting Flaps from Without Inward. — In this method the flaps are cut by dissection, as it is sometimes called. The incision out- DIVISION OF MUSCLES IN FLAP METHODS OF AMPUTATION. 285 lining the flap having been made through skin and fascia, the surgeon, standing to the outer side of right limbs and inner side of left limbs, and grasping the limbs between saw-line and trunk, proceeds to cut the muscle portion of the flap. A scalpel is made to cut the muscles along the line of retracted skin-and-fascia flap, the point of the knife entering the muscles at the upper limit of one of the limbs of the skin- and-fascia flaps — follows this margin vertically downward, passing deeply through the muscles — as the free border is approached, the knife is given a direction obliquely inward, so as to broadly and thickly bevel the muscles here, leaving them thinnest (though not thin) along this aspect of the flap — continu- ing the beveling process across the entire transverse width of the free end of the flap and well around its bluntly rounded corner — thence the knife passes ver- tically up the opposite limb of the flap, sinking deeply into the muscles, though the bone need not be fully reached in the vertical cuts at the first stroke (Fig. 283). As in cutting skin-flaps, the entire incision need not be made at one stroke of the knife — but is better made in two strokes from above downward. The surgeon now grasps the partly cut flap with the fingers of his left hand, and, while draw- ing it away from the bone, proceeds to fashion the rest of it along the same lines upon which it was begun, beveling it toward the bone by successive cuts of the knife — planning that the base of the flap will contain the full thickness of the soft parts covering the bone — and calculating that the knife will come down upon the bone (or bones) far enough below the saw-line (or disarticula- tion-line) to provide a musculo-periosteal (or capsulo-periosteal) covering. Where two flaps are cut, the second is cut in the same general manner. Care should be taken that the muscles are thickly and bluntly beveled, else a thin, ill-nourished ending to the flap is apt to be left. No attempt is made to bevel the upper part of the sides of the flap (the vertical portions) — the beveling beginning only just above the rounded corners. By cutting on a line with the retracted skin, ample covering of the muscle-portion of the flap by the skin-and-fascia portion is provided (Fig. 282). Method of Cutting Flaps from Within Outward. — In this method Fig. 281.— Division of Muscles in Amputation by Single Flap Method. 286 AMPUTATIONS. the flaps are cut by transfixion. The skin and fascia should always be cut first and from without inward, as the first step of every flap (as well as of every other kind of) amputation — no matter what the method of doing the Fig. 282.— Division of Muscles in Amputation by Double Flap Method. other steps of the operation. If this be not done, the muscles and skin will necessarily be cut upon the same, or nearly the same, level — with the inevitable result that there will be a deficiency of skin to cover the muscles, owing to the greater retraction of the former. Having, therefore, cut the skin and fascia flap from without, the surgeon proceeds to cut the muscles by trans- fixion. A long knife is taken, having a length equal to at least one-and-a-half diameters of the limb at the site in question. Marking the saw-line with Fig. 283.— Method of Raising Flaps of Skin and Muscle by Cutting from Without Inward. the thumb of the left hand, the point of the long knife (whose sides look upward and downward and whose edge points toward the extremity to be removed) is entered directly in the center of the lateral aspect of the limb (where the flaps are to be taken from the anterior and posterior aspects of the limb) and opposite the saw-line. The knife-point should be so placed and pointed as to avoid important vessels. The knife is then carefully pushed directly forward, until its point strikes the center of the lateral aspect of the bone (or, if two bones, of that one nearer the operator) — the handle is then lowered while the forward progress of the knife continues, so that its point is made to hug the bone closely until its upper margin is reached — the handle is then raised so as to cause the point to sink and follow, as nearly as possible, the surface of the bone (or bones) on the opposite side (which, DIVISION OF MUSCLES IN FLAP METHODS OF AMPUTATION. 287 naturally, can be less closely followed than the nearer quadrant of the bone's circumference). When the knife's point is felt to have reached a point on the far side of the limb corresponding with the center of the bone, the handle is then lowered to a horizontal position and the knife thrust on forward until it protrudes through the skin on the far side of the limb. The surgeon stops here a moment to calculate the line along which the cutting-edge of the knife is to emerge — the guide to which being the line of the retracted skin flap. With a slow back-and-forth sawing movement, the knife is made to cut its way forward — hugging the bone (or bones) closely throughout the greater portion of its way — until near the free end of the flap, when it is made to round its way out in such a manner as to cut a thickly beveled edge of muscle on Fig. 284.T-METHOD of Raising Flaps of Skin and Muscle by Cutting from Within Outward (by Transfixion) — cutting upon the line of retracted skin and fascia, which have been previously divided. a line with the retracted free edge of skin (Fig. 284). In cutting a second flap from the opposite aspect of the limb, the first flap is retracted out of the way — the knife then passes over the cut surface of the muscle along exactly the same course as in beginning the transfixion of the first flap — until its point strikes the center of the lateral aspect nearer the surgeon (at exactly the same point as in the first manoeuvre). The handle is now raised, to cause the point to follow down the lower quarter of the circumference of bone nearer the operator — when its lower margin is reached, the handle of the knife is lowered and the knife pushed forward, until the inferior surface of the bone (or bones) is passed. The handle is now still further lowered and the knife pushed forward, so as to cause the point to follow the further inferior quarter of the bone and emerge opposite the center of its lateral aspect. But as this manoeuvre is difficult to accomplish, the surgeon generally aids the knife with his left hand, by partly guiding it and partly depressing the remaining soft parts on far side below the point of the knife so that its edge escapes them. Then with a similar back-and-forth movement, at first hugging the bone, the knife is made to cut its way out on a line with the retracted skin-flap. In order to avoid cutting the muscle-flaps too narrow and too thin, it is necessary to hug the bone (or bones) until about three-fourths of the flap is cut and then abruptly round out to the line of the retracted skin-flap. Great care is also necessary to avoid piercing the main vessels in making the transfixion — and to avoid splitting them (whether at first transfixed or not) in cutting 288 AMPUTATIONS. forward to form the flap. Therefore, it is sometimes necessary, when forming flaps by transfixion, to so plan them that they will not be precisely antero- posterior, or lateral — but will be so formed as to be least likely to contain split vessels. Considerable tissue at the base of the Hap often escapes division in cutting by transfixion and has to be cut subsequently. The method of transfixion may be varied by not passing the knife so closely to the bone- that is, by transfixing the more superficial muscles only, retracting these, and then cutting the deeper muscles circularly at the saw-line. A further modification of the transfixion method consists in cutting through skin-and- fascia flap from without — then transfixing the apex of the muscle-flap — and dissecting up the remaining soft parts. Comparison of Methods of Cutting Flaps. — (a) The method of cutting from without inward enables a flap to be cut with greater precision — makes the wounding and splitting of the main vessels unlikely — and provides for a more accurate calculation of covering for the stump, especially as to the relation between the amount of skin and muscle covering. It is the method to be chosen in the great majority of cases, (b) The method of cutting flaps from within outward (transfixion) is a convenient method in very large limbs, and in some special amputations, and where speed is necessary. Flaps thus cut are apt to have their arteries injured — are apt to be too thinly beveled at their free ends — are apt to be too narrow throughout, and too pointed at their ends — and, generally, less judgment can be exercised in their fashion- ing. Even in the larger limbs a flap can be more satisfactorily cut from without inward than by transfixion. Even where transfixion is used, how- ever, the skin and fascia should invariably be cut from without — and the knife should come out on a line with this retracted skin. FREEING AND RETRACTING OF MUSCLES. In Ordinary Circular Method. — After the division of the more super- ficial muscles by the circular sweep of the knife, it may be found that here and there these muscles are not divided to an equal depth. Such unequal division, wherever found, is completed by a few strokes of the edge of a small knife. This layer of muscles is then retracted upward until the level is reached for the circular division of the deeper muscles. In Circular Amputation a la Manchette. — Here the muscles are divided directly to the bone, on the line of the reflected cuff, and no special freeing or retraction of the muscles is done, until ready to make the musculo- periosteal covering. In Modified Circular Amputation. — The muscles are here freed and retracted as in the ordinary circular amputation. In Oval Method of Amputation.— Here the muscles are divided on the line of the oval — no freeing or retraction being necessary until ready to make the musculo-periosteal flap. In Racket Method of Amputation. — Same as in the oval method. In Single, or Equal, or Unequal Flaps of Skin and Muscle. — (A) When Cut from Without; — The fingers of the left hand raise the flap away from the bone, while the surgeon cuts the vertical limbs of the flap to the bone, and gradually bevels the terminal portion of the flap obliquely upward tow T ard the bone. (B) When Cut from Within by Transfixion; — No freeing or retraction is necessary, until ready to make the musculo-periosteal covering. (The fingers of the left hand may grasp up the soft parts of the limb and lift them away from the bone as the knife cuts its way out.) In Single, or Equal, or Unequal Flaps of Skin.— The muscles are MAKING MUSCULO-PERIOSTEAL COVERING. 289 here divided on one level — no freeing or retraction being necessary, until ready to make the musculo-periosteal covering. In Elliptical Method. — The muscles are handled as in an amputation by a single flap of skin and muscles. In Unequal Rectangular Flaps of Skin and Muscle (Teale's Method). —The muscles are here handled as in amputation by unequal flaps of skin and muscle. MAKING MUSCULO-PERIOSTEAL, OR PERIOSTEO-CAPSULAR, COVER- ING FOR END OF BONE. Description. — A covering should be provided for the end of the ampu- tated or disarticulated bone, or bones, which will consist of periosteum and overlying muscle, raised as a single musculo-periosteal or periosteo-capsular flap or covering. Care should be exercised in raising this covering, that muscle is not first raised from periosteum and periosteum from bone, but that muscle and periosteum should be raised in one adherent layer. Peri- osteum is absent over cartilaginous surfaces, hence a pure musculo-periosteal covering is not to be gotten in a disarticulation — but as much of the capsule of the joint, which is practically a continuation of the periosteum, should be preserved as possible, and treated in the same way as the periosteum, that the articular end of the proximal bone may be covered. The distinct advantages of a musculo-periosteal covering for the end of the bone are the following; — (1) The muscles being adherent to the periosteum, when a covering of the latter is stitched over the bone, a thicker and more fixed covering to the end of the bone is secured than could be otherwise attained: — (2) The end of the bone being covered by periosteum, adhesion of the soft parts to the end of the bone is far less likely, the parts covering the bone generally remaining freely movable, and are, therefore, both better nourished and are less likely to become painful; — (3) The medullary cavity of the bone being shut off by the musculo-periosteal covering, is much less apt to become involved in any septic process which may arise in the stump. The only objections which can be raised to a musculo-periosteal covering are the time and trouble involved — which should not be allowed to weigh against the practical advantages — nor should the possible formation of osteophytes and proliferation of bone from the turned-over periosteum be seriously regarded. Manner of Providing Musculo-periosteal Covering in all Forms of Circular Amputation, and in all Double-flap Amputations Cut from Without Inward. — The surgeon should plan to have his knife pass through the deep layer of muscles surrounding the bone in such a way as to come down through these muscles and upon the periosteum without separating muscles from periosteum (which would also detach the vascular supply of the periosteum), and at such a level on the bone below the saw-line as to equal a full half-diameter of the bone at the saw-line. In circular amputa- tions this final cut will pass transversely through the muscles, — in flap ampu- tations, obliquely through, in the process of beveling. As soon as the peri- osteum is reached in this final incision, all the soft parts are carefully retracted around the whole circumference of bone at this level, especial care being taken not to use force in the retraction, thereby separating muscle from periosteum by dragging the former off of the latter. A circular incision is now made through the periosteum around the entire circumference of bone, at the level of the lightly retracted muscles — cutting the periosteum with especial firmness where closely bound to the lineae aspera?. The peri- !9 290 AMPUTATIONS. osteum is then detached back to the line of the future saw-cut, by means of a periosteal elevator — care being exercised not to push the muscles off the periosteum, but to push the periosteum back from the bone with the muscles attached (Fig. 285). In Flap Amputations by Transfixion. — The knife should be entered just far enough below the saw-line to equal a full half-diameter, or more, of bone at the sawdine. When the flaps are cut, the periosteum is divided circularly at this level — and then the periosteum and muscles are detached back to Fig. 285.— Raising a Musculo-periosteal Covering — in the circular method of amputation. the sawdine — or the periosteum may be raised as two small flaps, their incision beginning at the sawdine (Fig. 286). In Oval and Racket Modifications of the Circular Amputation. — The freeing back of the muscles should be stopped at a level equal to a full half-diameter, or more, of the bone below the saw-line — the periosteum is here circularly divided — and the periosteum and muscles detached thence back to the saw-line. In Single-flap Amputations of Skin and Muscle. — The knife comes down upon the bone one full diameter, or more, of bone below the saw-line. As the two vertical limbs of the flap have been cut down to the periosteum in the earlier part of the operation, a musculo-periosteal flap is now marked out, having a base equal to half the circumference of the bone at the saw-line and a length equal to one full diameter, or more, of the bone at the saw-line. The periosteum and muscles are now detached back to the line of bone-section — all the hitherto undisturbed parts on the opposite side of the limb are now divided transversely to the bone — and the bone sawed. In Flap Amputations of Skin Only. — As the muscles are here divided circularly, the musculo-periosteal flap is provided for just as in the ordinary circular amputation. In the Elliptical Modification of the Single-flap Method. — The musculo-periosteal covering is handled as in the single flap of skin and muscle. In Unequal Rectangular Flaps of Skin and Muscle (Teale's Method). — The musculo-periosteal covering is secured as in amputation by unequal flaps of skin and muscle. In Amputating Limbs with Two Bones. — The musculo-periosteal covering for the larger bone is provided as described in the single-bone limbs. MAKING MUSCULO-PERIOSTEAL COVERING. 291 The musculo-periosteal covering for the smaller bone is provided in the same manner, but will be cut at a higher level (as it is circularly divided, or a flap is cut, which will be equivalent to the smaller diameter of the smaller bone). Where the bones are of the same size, the periosteum is divided at the same level in each case — which may also be done when the bones are of unequal size, the redundancy of periosteum in the case of the smaller bone being subsequently removed with scissors, if necessary. Fig. 286.— Raising a Musculo-periosteal Covering— in the flap method of amputating. Note. — The final treatment of the periosteal covering cannot be carried out until after the division of bone. Comment. — (1) It will be seen that in circular amputations and in ampu- tations by double flaps, the musculo-periosteal covering is furnished from the entire circumference of the bone — while in amputations by single flaps, a single flap of musculo-periosteal tissue is raised, the width of which is equal to a half-circumference of bone and a length equal to a diameter of bone. (2) As there is comparatively little retraction of fibrous periosteal tissue, the chief retraction taking place in the attached and overlying muscles, a length for the musculo-periosteal covering of one full diameter of the bone (each side of the bone hereby furnishing one-half diameter) will, therefore, cover the end of the bone, but none too fully — so that this measurement should be made very full. (3) Where it is difficult to detach the musculo- periosteal covering backward after simply a circular division of the periosteum, two vertical incisions may be made upon the lateral aspects of the bone, from the site of the saw-line to join the circular cut — which will make the detachment easier. These vertical incisions may, indeed, be made in aD cases. Even where the vertical incisions are not made in detaching the periosteum, they may be subsequently made before adjusting the periosteal flaps or covering. In the pure flap amputations the muscles have already been divided to the periosteum, so that the knife easily makes the two vertical incisions in the periosteum. In the circular amputation where it is necessary to add the vertical cuts before sawing the bone (that is, in order to reach the saw line), the point of the knife may be pushed into the transversely divided muscles, in the long axis of the limb, up to the saw-line (which will lie only a half-diameter of the bone above) and cut downward thence to join the circular cut. (4) In the case of the two-bone limbs, the interosseous mem- brane is also freed back in the act of detaching the periosteum. (5) Some hold that the periosteal covering is without value in the adult and actually harmful in the young, owing to the possibility of reproduction of bone render- 292 AMPUTATIONS. ing the stump conical. The former is an error of observation. The latter must be very rare, the epiphysis being responsible for the chief increase of length of bone. Fig. 287.— Retraction of Soft Parts Preparatory to Sawing of Bone— in the case of a single-bone limb. A single-tail retractor is shown above. RETRACTION OF SOFT PARTS PREPARATORY TO SAWING THE BONE. All the soft parts overlying the bone having now been divided, from skin to periosteum, these soft parts are to be retracted above and out of the way of the saw- line, which should be seen to be clear in its entire circumference before making the bone-section. In Si ngle-bone Limbs. — A double- tailed linen retractor is generally used to hold the soft parts back — the two tails of the retractor pass- ing around the bone, thus supporting the soft parts and drawing them upward and out of the way (Fig. 287). In Double -bone Limbs. — A three-tailed linen retractor is usually used — the central tail pass- ing between the bones — the outer of the other two tails on the outer side of the outer bone, and the inner on the inner side of the inner bone (Fig. 288). Comment.- — The parts may also be retracted by the hands, or by various forms of metallic or other retractors, such as Cooper's retractors (Fig. 289). SAWING THE BONE, OR BONES. General Considerations. — The surgeon, standing to the outer side of right limbs and to the inner side of left limbs, grasps the limb firmly with Fig. 288.— Retraction of Soft Parts Preparatory to Sawing of Bone — in the case of a double-bone limb. A double- tail retractor is shown above. SAWING THE BONE, OR BONES. 2 93 his left hand just above the saw-line. An assistant supports the distal portion of the limb, holding it out over the side of the table, and on an exact line with the level at which the limb leaves the trunk, in the case of the arm and thigh; and on a level with the surgeon's left hand in the case of the forearm Fig. 28q. — Cooper's Metallic Amputation Retractors. and leg. If he elevates it above the common level, he will bind the surgeon's saw throughout the entire transverse section (because the parallel walls of the section will tend to approximate), — and if he depresses it below the common level, while he makes it easier for the surgeon to saw, he is apt to splinter the bone just before the section is completed (because the parallel walls of the section will tend to diverge). Fig. 290.— Manner of Sawing the Bone — in the case of a single-bone limb. In Single-bone Limbs. — The surgeon places the edge of his thumb- nail down upon the bone immediately above the saw-line, as a guide to the saw, temporarily loosening but not entirely relaxing his steadying hold with the other fingers and palm upon the limb. Holding an ordinary amputating saw in his right hand, he deliberately places its heel against his thumb and knuckles, and directly over the saw-line — and, with a fairly slow but firm and steadv movement, he draws the saw backward from heel to point, thus grooving the bone transversely. If this groove be not distinct or deep enough, 294 AMPUTATIONS. the first movement (from heel to point) may be repeated. The surgeon now resumes his steadying grasp of the limb with his left hand and proceeds to saw the bone by slow, even, steady, back-and-forth strokes of the saw, traveling the entire length of the saw-blade at each stroke — and avoiding uneven and too rapid sawing, the latter sometimes generating a harmful degree of heat. It is during the section of the latter part of the bone that the assistant is most careful in his manner of holding the limb and the surgeon in his use of the saw. Toward the last the strokes of the saw should be slower, shorter, and lighter, and the limb so balanced that there will be no cross-strain anywhere throughout its length — and thus are the chances of splintering minimized. If indicated, the larger saw may be removed toward the last and the section be completed with a lighter, finer saw, but this is ordinarily unnecessary. As the bones of both single-bone limbs are nearly circular, no beveling of the edges is needed (Fig. 290) . In Double-bone Limbs. — The general manipulative method is here the same as in the single-bone limbs. The saw first engages the heavier bone, and, having passed partly through this, is dropped upon the lighter or more movable bone — the section of which latter bone should be first com- pleted, the saw all the while cutting the heavier bone also, which it finally completes alone. Where both bones are of the same size (as the middle of the forearm), the saw grooves the one nearer the operator and is then dropped upon the farther one. Where a bone presents a promi- nent ridge, almost or quite sub- cutaneous (as the anterior border of the tibia), this would become an angular projection after sec- tion of the bone and would be apt to become a prominent point of pressure. To avoid this, this edge of bone should be beveled — which is best done by making an oblique saw-cut from above down- ward, beginning about 1.3 cm. (£ inch) above the saw-line and pass- ing obliquely into the bone at such an angle as to be about 6 or 8 mm. (j or ^ inch) below the level of the bone by the time it has reached the saw-line. Having made this 1.3 cm. (^ inch) oblique saw-cut into the bone, the saw is then withdrawn and is made to traverse the bone transversely along the line of bone-section in the ordinary manner. When the saw, traveling transversely, reaches the short oblique section, the small triangle of bone will drop out — and when the section is completed, the prominent edge of the bone will be found beveled (Fig. 291). Comment. — In the very young, and especially in amputating those bones which grow chiefly from an upper epiphysis, it is well to saw the bone as high as possible — as subsequent growth from such bones may require reamputation. Fig. 291. — Manner of Sawing the Bones — in the case of a double-bone limb. The method of beveling a prominent margin of bone is also here shown. REMOVING SPLINTERED BONE. If, in the final saw-section, whether by splintering or a transverse snapping of the frail bridge of bone, a fragment of bone is left projecting from the stump, or any other projecting irregularity should appear upon the trans- versely divided bone, this should be removed down to a level with the face of the bone. This is accomplished by grasping the spicula of bone with LIGATIXG ARTERIES AXD VEINS. 295 bone-holding forceps (such as the lion-jaw type) and steadying it, while the surgeon removes the spicula with a small, fine saw (Fig. 292). Comment. — (1) Bony projections are often crudely crushed off with bone-cutting forceps — this is quickly done and is a temptation — but is not to be recommended, as necrosis of the margin of the bone is more apt to follow crushing than sawing. (2) The splinter of bone may be upon the 292.-MANXER of Removing a Piece of Splintered Bone. portion of bone removed — there will then be a corresponding depression, with probably a tearing of periosteum and muscles, upon the bone in the stump — which may require to be evened off. LIGATING ARTERIES AND VEINS. As soon as the bone has been sawed, all the chief arteries and the larger veins should be tied. The arteries are tied in the order of their importance and are sought in their known positions. They have frequently retracted somewhat, so as to be out of sight, and are to be traced by their known rela- tions. The stump should be held in a good position and light — and, if necessary, dried of blood. The cut ends of the arteries are caught by catch- forceps and drawn out of their beds by the surgeon — while an assistant ligates the larger vessels with chromic catgut, tying them with a surgeon's knot. The larger arteries may be tied with the stay-knot of Edmunds and Ballance (page 24). All the vessels should be clamped before any are tied. The larger arteries should be drawn out of their sheath before being tied. The smaller arteries with their sheaths may be included in the ligature. Arteries which are caught with difficulty with catch-forceps may be taken up with a tenaculum. Very small vessels may be compressed or twisted without ligaturing. The chief veins should be tied — as well as any others which are seen gaping. All vessels should be tied as long as possible — and should be disturbed in their sheath as little as possible. Arteries bleeding from their osseous canals in the end of the bone cannot be tied, but may be controlled by plugging the vascular canal with a piece of catgut, a piece of sterilized wood, or with Horsley's antiseptic wax, or Halsted's gut-wool — 296 AMPUTATIONS. or a limited portion of the canal may be crushed in upon itself. After all known vessels are tied, the Esmarch, or other constrictor, should be relaxed and all hitherto untied vessels which now bleed are to be ligated (Fig. 293, A, B, and C). Comment. — (1) See that the first knot (friction-knot) does not loosen before the second knot (surgeon's knot) is complete — and that the knot is far enough from the end of the vessel not to slip off. (2) Where hemorrhage Fig. 293.— Stump after Amputating through Lower Part of Right Leg: — A, Ligation of anterior tibial artery; B, Clamping of posterior tibial artery; C, Plugging vascular canal of bone with piece of catgut ; D, Cutting off tag of peroneus longus ; E, Cutting anterior tibial nerve short. is apprehended, vessels may be taken up immediately after dividing the soft parts, and before even severing the bone. Instead of taking up and tying the vessels seriatim, they may be immediately clamped, one after another, and, if not tied at once, the catch-forceps may be retracted with the flaps, or with the circular division of soft parts, and the bone sawed, after which the vessels are tied — relaxing the original hold where vessel and sheath are in- cluded and taking up vessel alone. (3) Obstinate oozing may generally be SUTURING OF MUSCULO-PERIOSTEAL COVERING. 297 controlled by ligating en masse — or by douching with hot saline solution, or by pressure. This is the form of hemorrhage which is more apt to occur after the removal of the constrictor. TREATMENT OF NERVES, TENDONS, AND TAGS OF MUSCLE, FASCIA, AND SKIN. (1) All nerves should be cut as short as possible, to avoid entanglement and pressure in the process of cicatrization — to accomplish which they should be caught bv forceps and drawn well out and then cut with scissors and allowed to retract out of sight. Where the flap method has been done and it is likely that an important nerve may be subjected to pressure when the flaps are bent and sutured over the end of the bone, the nerve should be dis- sected out. This is especially the case in the method of single-flap ampu- tation. Nerve ends are apt to become bulbous in any event, but will not be troublesome unless subjected to pressure. (2) All tendons should be caught with forceps, steadied, and cut short under slight tension. They are difficult to cut unless steadily held and slightly stretched — when they may be cut with scissors or a very sharp knife. Tendon-ends possess low vitality, are apt to slough, fulfil no useful purpose in the stump, and make but poor covering. (3) All tags and irregularities of muscle, fascia, and skin should be evenlv trimmed, so as to conform with the general contour. (Fig. 293, E and D.) TRIMMING OF FLAPS. It is undesirable, and somewhat unsurgical, to make a miscalculation in the length or contour of a flap, which will require any subsequent trimming ■ — but where a flap is distinctly too long, or too large, or misshapen, it is better to do the trimming necessary to make a good fit than to suture it in place as it is. It is held in the left hand, or caught with forceps, and trimmed as one would trim a piece of paper. A flap may be trimmed as a whole — or some individual tissue composing it may be trimmed. RE-AMPUTATION FOR IMPROPERLY MADE FLAPS. It is even more unsurgical, and much more difficult to rectify, to find that so little allowance of covering has been made that the end of the bone either cannot be covered at all, or cannot be covered without a degree of tension calculated to endanger the flaps. In such a case all that one can do is to amputate at a higher level. If only a slight deficiency of covering exist, the end of the bone may be freed of its soft parts by retraction and made to project and then be removed by the saw. Where the deficiency is greater, from one to several inches of the soft parts may also have to be re- moved, as well as the bone. In such a case one proceeds very much as in the original operation, modified by the needs. ADJUSTMENT AND SUTURING OF MUSCULO-PERIOSTEAL OR PERIOSTEO-CAPSULAR COVERING. The first step in the closure of the stump-tissues is the adjustment of the musculo-periosteal covering. It will be remembered that in all circular amputations, and in all double-flap amputations of skin and muscle, the 298 AMPUTATIONS. musculo-periosteal covering was made by a circular division of the periosteum around the bone one-half of a full diameter of the bone below the saw-line (thus furnishing a full diameter), and that the periosteum, with adherent muscles, was then detached in one layer up to the saw-line. Therefore, after the bone is sawed and the soft parts drop down around its cut end, the musculo-periosteal covering will form a hollow cylinder projecting from the lower surface of the transversely sawed bone — the periosteum hanging down around the bone for a depth, approximately, of a half diameter of the bone, the muscles being adherent to its outer side. This cuff of musculo- periosteal covering may be converted into two small flaps by cutting along its lateral aspects with straight-pointed scissors, from its lower free margins up to the bone. The corners of these little flaps may then be slightly rounded, though this is not necessary. These two flaps are then dropped over the end of the bone and their edges are sutured together with catgut, the sutures passing through periosteum and muscles. While the above method makes a neater fit, it is not really necessary that the musculo-periosteal covering should be slit up at all on the sides — it suffices simply to ap- proximate the edges over the bone by a suture running either antero-posteriorly or trans- versely. Where the musculo- periosteal covering has been raised in the form of a single flap (as in the amputation by a single flap), this single flap of musculo-periosteal covering is dropped over the end of the bone and its margins sutured to the cut margins of the peri- osteum around the rest of the ering. circumference of bone, including the muscle overlying the perios- teum. Where the bone-section is very small, it is often difficult to adopt any definite plan of making and suturing a musculo-periosteal flap, the per- iosteum being torn in shreds in the process of detachment. In such cases the mass of musculo-periosteal tissue is simply gathered together and sutured over the end of the bone. (Figs. 294 and 302.) QUILTING OF MUSCLES. The muscle tissue which enters into the covering of the bone should, where possible, be approximated and sutured into apposition by buried chromic gut sutures, placed in one or more tiers, by means of either buried simple sutures, or buried quilt- or mattress-sutures. Thus the cut aspects of the muscles are brought into contact, — less tendency for them to retract away from the end of the bone occurs, — in the process of cicatrization they become incorporated in the general pad of covering which forms the stump (even though the muscle tissue itself may be subsequently replaced by fibrous tissue), — there is less chance of adhesions forming between bone and skin, — and, altogether, a fuller, softer, better-formed pad of covering is provided. These advantages more than counterbalance the only two disadvantages — namely, of time and trouble involved. By the process of quilting, muscles QUILTING OF MUSCLES. 299 Fig.295.-Qu11.TiNG of Muscles in Circular Method of Amputation: — First tier of sutures has been placed — and is being buried by the second tier. are brought and held in contact until united, which, in the ordinary method of simply dropping muscles over the ends of the bones and depending upon the single line of marginal skin-sutures to approximate, either could not be made to come into contact even temporarily, or, if so, would generally retract apart before union. In Circular (Infundibuliform Variety), Modified Circular, Oval, and Racket Methods. — After su- turing the musculo-periosteal cover- ing the muscle surfaces are brought into contact immediately over the musculo-periosteally covered end of bone. The approximation of mus- cle tissue over the bone may be made in the way in which the mus- cles most naturally fall. Other things being equal, the approxima- tion should be made so as to cause the suture line to be parallel with the future suture line of the integu- mentary coverings. The first tier of sutures is placed nearer the bone, entering and leaving the muscle tis- sue at such a distance from the bone as to secure an easy ap- proximation of the muscle substance over the end of bone. This first row of sutures, which, if of the simple form, may be either interrupted or continuous, will conceal the end of the bone. A second tier, especially in heavily muscled limbs, or in thin limbs with large muscle flaps, should be applied —being inserted nearer the edge of the muscle tissue than the first — and, when tied, will hide the first row (Fig. 295). In Circular Method a La Man- chette. — As the mus- cles are here all divided on one level, and that '\ level is that of the re- tracted skin, skin and fascia alone cover the end of the bone, and no approximation and quilting of the muscles are possible. In All Double-flap Amputations of Skin and Muscle. — The muscles are quilted in the same manner as in the ordinary circular (infundibuli- form), the process of muscle-quilting being easier in the double-flap method than in the ordinary circular, as the muscles are adherent to the flaps on either side and are more readily held in approximation while being quilted (Fig. 296). Fig. 296.— Quilting of Muscles in Flap Method of Ampu- tation : — First tier of buried sutures has been placed and tied — and second tier is being placed. 300 AMPUTATIONS. In All Double Flaps of Skin. — No quilting of muscles is here possible — as the muscles are transversely divided on a level with the retracted skin- flaps. In All Single Flaps of Skin and Muscle, Including the Elliptical Method. — As the muscles are here divided obliquely on the side of the flap, and transversely on the opposite side, the quilting of muscles is not done as in the above-described methods (where the lateral aspects of the muscles are sutured to lateral aspect, or ends to ends). The lateral aspect of the muscles in the present instance, some of which aspect is made up by the obliquely beveled muscles, is sutured to the transversely divided muscles on the side of the limb opposite to the flap — and the ends of the muscles in the flap are sutured to the circumferential margin of the transversely divided muscles in the stump. As the base of the flap comes from a full half-cir- cumference of the limb, the bent-over flap is only approximated to the opposite half of the face of the stump. Where the elliptical method is used in the neighborhood of an articulation (that is, in a disarticulation) where only tendons pass over and cover the joint, no quilting is possible. It is, therefore, applicable only where muscles cover bones, which, in the case of the joints, is only at the shoulder and hip. DRAINAGE. No drainage is necessary in amputating through sound tissue in the continuity of a limb. Temporary drainage (for two or three days) may be instituted in disarticulating through the larger joints — to provide for the escape of the synovial fluid which the remaining synovial surfaces will go on secreting for a time. Where drainage is indicated, it is sometimes better to make a counter-opening than to attempt to drain through a non-dependent suture-line. Drainage may be temporarily used where bleeding in the stump-tissues is feared after prolonged use of an Esmarch, or for other reason. Drains of rubber-tubing, glass, gauze, or bone-tube may be used. SUTURING OF THE STUMP. The suturing of the edges of the wound should be done with silk and by means of interrupted sutures. Where no great tension is likely to occur, silkworm-gut may be used. Catgut is also employed. The parts should come together without tension. The interrupted is to be preferred to the continuous form of suturing, for the parts may be thereby more accurately adjusted — and if it become necessary to open any part of the wound for drainage, or other cause, only the few indicated sutures need be cut. In Circular Amputations. — It is optional with the operator as to whether the soft parts are so approximated as to result in a line of sutures running from before backward, or from side to side. The former is to be preferred, as the lower end of the suture-line (in the recumbent position of the patient) drains the wound by gravity, in case drainage be necessary. Where skin and muscle come evenly to the edge of the wound, both are included in the sutures. Where skin is longer than muscle, the sutures which close the wound pass through skin only — the muscles having been approximated by their own buried sutures. In Flap Amputations. — Here the direction of the line of sutures will be determined by the position of the flaps. Where double flaps are taken from the anterior and posterior aspects of a limb, the suture-line will run THE EVOLUTION OF AMPUTATION METHODS. 301 from side to side. Where double flaps are taken from the lateral aspects the suture-line will be antero-posterior. Where a single flap is approximated to the opposite side of the limb, its margin is sutured to the opposite half- circumference. Where the margin of the flaps is composed of skin and muscle, both are included in the sutures. Where the skin is longer than the muscle, the skin alone is included in the suturing. In all cases the muscle surfaces are supposed to have been quilted together prior to the final closure of the wound. Comment. — (1) Owing to the difficulty of equally dividing out the posi- tions for sutures where a large wound is to be brought together, it is well to begin by putting in a central suture and then divide each remaining half of the space into quarters by two other sutures — then these smaller lengths can be sutured with interrupted or continuous suture — the former being better, as, in case it be necessary to loosen any suture for suppuration, or otherwise, the entire line need not be loosened. (2) If tension upon the edges be great, a few tension-sutures mav be used. DRESSING OF THE WOUND. The wound and stump should be covered with absorbent gauze — the entire stump enveloped in absorbent cotton — which should be snugly bandaged to the end of the stump and the circumference of the limb. A padded poste- rior splint should be incorporated in the outer layers of the dressing, pro- jecting beyond the stump slightly — both to support the part; protect it from injury; and control, or lessen, the muscular startings which are apt to occur. The stump should rest upon an inclined plane, outside of bed-covering. REMOVAL OF DRESSINGS. If all goes well, the dressings are not removed until about the tenth day (or from the tenth to the fourteenth). If a drainage-tube be used, the dress- ings are often changed when that is withdrawn — although it is sometimes withdrawn at the end of the second or third day — and the dressings not removed until the usual time. THE METHODS OF AMPUTATION. THE EVOLUTION OF AMPUTATION METHODS. The methods of amputation have undergone a slow process of evolution — which may be briefly stated in the following tabular form (modified from Kocher). Circular Incision. — The fundamental type of amputation. Of which there are two varieties, and from which all other methods of amputation may be derived; — (a) Transverse circular incision (Fig. 297, A); (b) Oblique circular incision (Fig. 297, B). Racket Incision. — Formed by the addition of a longitudinal incision to the circular incision, (a) If the longitudinal incision be added to the transverse circular incision, the transverse racket incision results (Fig. 297, C); (b) If the longitudinal incision be added to the oblique circular incision, the oblique racket incision results (Fig. 297, D). Xote — The corners of the 302 AMPUTATIONS. racket incision are now generally rounded off, as in the oval method, the Fig.297.— The Evolution of Amputation Methods: — I — A, Transverse circular incision; B, Oblique circular incision; C, Transverse racket incision; D, Oblique racket incision. (Modified from Kocher.) only practical difference between the two, as now usually employed, being that the queue is made longer in the racket method. Oval Incision. — Formed by the shortening of the queue and the rounding- Fig. 298.— The Evolution of Amputation Methods : — II— A, Transverse oval incision ; B, Oblique oval incision; C, Equal rectangular flaps; D, Unequal rectangular flaps. (Modified from Kocher.) off of the angles of the racket incision, (a) If the angles of the transverse racket incision be rounded, the transverse oval incision results (Fig. 298, A); Fig. 299.— The Evolution of Amputation Methods: — III — A, Equal rounded flaps ; B, Unequal rounded flaps. (Modified from Kocher.) (b) If the angles of the oblique racket incision be rounded off, the oblique oval incision results (Fig. 298, B). ORDINARY CIRCULAR AMPUTATION. 303 Rectangular Flaps. — Formed by adding two longitudinal incisions to the circular incision, (a) If the two longitudinal incisions be added to the circular incision, equal rectangular flaps result (Fig. 298, C) ; (b) If they be added to the oblique circular incision, unequal rectangular flaps result (Fig. 298, D). Rounded Flaps. — Formed by rounding the angles of the rectangular flaps, (a) If the angles of equal rectangular flaps be rounded, equal rounded flaps result (Fig. 299, A) ; (b) If the angles of unequal rectangular flaps be rounded, unequal rounded flaps result (Fig. 299, B). Elliptical Method. — The position of this method, in the process of evo lution, will be described further on (page 315). SUMMARY OF AMPUTATION METHODS. Fundamental Types. — Circular Method; Flap Method. Modern Types. — (a) Circular and its modifications; (b) Flap and its modifications; (c) Irregular methods of amputation. As to Nature of Covering of Stump. — All methods of amputation are either — (a) Skin Coverings — that is, skin and fascia alone cover the divided muscles and bone, as in the cuff method of the circular amputation, and in the simple skin-flap in the flap method of amputation; — or (b) Skin- and-muscle Coverings — where skin, fascia, and muscles, combined and un- separated, including the periosteum, cover the end of the bone, as in the ordinary (infundibuliform) circular amputation, and in flaps of skin and muscle in the flap method of amputation. CIRCULAR METHODS OF AMPUTATING. (a) Ordinary Circular Method — (amputation circulaire infundibuli- forme); — (b) Cuff Method of Circular Amputation — (amputation a la nian- chette); — (c) Modified Circular Method of Amputation — (mixed method); — (d) Oval (or Lanceolate) Method;— (e) Racket Method. ORDINARY CIRCULAR AMPUTATION. (AMPUTATION CIRCULAIRE INFUNDIBULIFORME). General Description. — The soft parts are divided by a series of circular cuts, retraction of the parts taking place between each circular sweep of the knife, so that they are cut partly through at different levels — the sawed bone forming the apex of the funnel left upon the proximal end of the limb, and the skin margin the base — the distal part removed being cone-shaped. Technic. — Stand to outer side of right and inner side of left limbs, so as to grasp limb between trunk and amputation-site. Determine the saw- line. Fix the skin incision at a level below the saw-line equal to \ of ih times the diameter of the limb (or three-fourths of that diameter) at the saw-line (that is, at 11.5 cm., or 4J inches, below the saw-line, if the diam- eter of the limb at the saw-line be 15.3 cm., or 6 inches) (Fig. 300, A). Grasp the limb just above the line of the skin incision with the left hand and retract the skin upward, aided, if the limb be large, by an assistant. With a long knife, make a circular incision, at the skin-incision line, through skin and superficial fascia, entirely around the limb. Free skin with its superficial fascia from the muscles with their deep fascia, aiding 3°4 AMPUTATIONS. the separation in the interfascial line by touches with a scalpel, where neces- sary. Retract the skin and fascia evenly around the circumference of the limb. Divide the more superficial layer of muscles circularly, on a level with the retracted skin. Retract this more superficial layer of muscles. Divide the remaining deeper muscles circularly on a level with the retracted outer layer of muscles — and planning to come down upon the bone, or bones, far enough below the saw-line to allow of making a musculo-periosteal covering for the bone or bones. Retract the deeper muscles thus cut. Divide with a stout knife, the periosteum circularly around the bone, or bones, at a distance below the saw-line equal to a good one-half diameter of the bone Figs. 300 and 301.— Ordinary (Infundibular) Form of Circular Amputation : — A, Position of incision and bone-section ; B, Resulting suture-line. The skin-incision and suture-line here are also applicable to the cuff variety of the circular method. at the saw-line. Push up the periosteum from the bone with periosteal elevator — keeping the muscles adherent to the periosteum. Apply linen (or other) retractors to the soft parts and draw them above the saw-line. Saw the bone, or bones. If splintering occur, grasp the spicula with forceps and remove with finer saw. Allow the soft parts to drop over the end of bone, or bones, the sawed ends of which will form the apex of a funnel — the bone being covered by periosteum — periosteum by muscle — and muscle by fascia and skin (Fig. 302). Tie the vessels — cut the nerves and ten- dons short — and remove any tags of connective tissue or skin. Suture the musculo-periosteal covering over the end of bone, or bones. Quilt the CUFF METHOD OF CIRCULAR AMPUTATION. 3°5 muscles together in one or two layers. Suture the skin and fascia antero- posterior!}' (Fig. 301, B) — and apply the dressing and supporting splint. Resulting Stump. — Evenly covered on all sides by muscle and skin — the bone being particularly well protected and on a higher level above the surface of the stump than in any other form of amputation. The scar is ter- minal — antero-posterior, if the wound be sutured from before backward, — lateral, if sutured from side to side (Fig. 301, B). Indications. — In limbs more or less evenly surrounded by muscles: — lower part of forearm (sometimes), arm, and thigh. Comment. — (1) Owing to unequal skin retraction in some localities (as the antero-internal aspect of the arm and thigh) the circular incision may have to be planned obliquely and only become circular after the incision — and may also have to be planned lower. (2) A pure ordinary circular (infundibuliform) am- putation is impossible in a limb of rap- idly increasing girth, as it is impossible to retract the soft parts. A single lateral vertical incision through skin and fascia, or double lateral incisions, may become necessary in order to free the parts — when it ceases to be a typical infundi- buliform amputation. Fig. 302.— Appearance of the Parts Following the Infundibular Form of Circular Amputation :— A funnel-shaped cavity left proximally, and a cone-shaped mass distallv. CUFF METHOD OF CIRCULAR AMPUTATION (CIRCULAR AMPUTATION A LA MANCHETTE). General Description. — A circular division of the skin is made, which is turned over and upward upon itself as a cuff — and, upon a level with this retracted cuff of skin and fascia, the muscles are divided to the bone, generally with one circular sweep of a long knife. Technic. — The steps of the operation are similar to those of the ordinary circular amputation (page 303) up to the completion of the circular incision through the skin and superficial fascia. The skin and subcutaneous tissue are then turned back upon themselves as a cuff — the freeing being done by means of the fingers of the left hand, aided by touches of a scalpel, until evenly retracted all around. On a level with the retracted cuff, the muscles are circularly divided down to the bone — the site at which this division takes place being such as will allow of ample and easy covering of the transversely divided muscle by the skin and fascia — an average calculation being that about one-third of the total distance from saw-line to line of skin incision should be given to skin and fascia alone. The subsequent steps of the opera- tion, including the musculo-periosteal covering for the bone, being the same as for the ordinary, or infundibuliform, circular amputation. Resulting Stump. — Apt to be more or less irregular in contour and not so well padded, owing to the nature of the parts used for covering. The scar lies as in the ordinary circular amputation (Fig. 301). 306 AMPUTATIONS. Indications. — Most frequently used where the soft coverings are more tendinous than muscular: — wrist, lower part of forearm, ankle, and lower part of leg (in thin subjects). Comment. — (i) and (2) The same comments made under (1) and (2) of the last operation apply equally here (page 305). (3) Owing to the greater proportion of skin in this covering and the division of muscles in one layer, as well as the number of tendons present in the sites where this method is generally used, the covering of the bones is not so satisfactory as in the ordinary circular method. MODIFIED CIRCULAR AMPUTATION (MIXED METHOD). General Description. — Two equal flaps, composed of skin and fascia, Figs. 303 and 304.— Modified Circular Method of Amputation: — A, Position of incision and bone-section ; B, Resulting suture-line. of varying length, and having bases equal to one-half of the circumference of the limb at their upper ends, are cut and dissected up a short distance — followed by a circular sweep of the knife through the retracted superficial muscles — and by a second circular sweep at a higher level, through the re- tracted deeper muscles — and completion of the operation as in the ordinary circular amputation. Technic. — Having fixed upon the saw-line, and having marked a point below the saw-line equal to \ of ih diameters of the limb at the saw-line (that OVAL METHOD OF AMPUTATION. 307 is, three-fourths of the diameter at the saw-line), two equal flaps of skin and fascia (of this length) are planned. These flaps have bases equal to one-half the circumference of the limb at the level of their upper limit — and their length will be equal to one-third or one-half of the total distance between saw-line and lowest limit of skin-covering (generally one-third in slender, ill-formed limbs, and often one-half in large, tapering limbs). The flaps are usually lateral ones, but may be anterior or posterior (Fig. 303, A). Retracting the skin with the left hand, begin the incision at one mid-lateral aspect of the limb, at a level above the lowest limit of the skin incision equal to one-third or one-half (as the case may be) of the distance between the saw-line and the lowest limit of the skin incision — pass vertically downward, through skin and fascia, until nearly at the level of the lowest skin incision — thence round forward into the line of lowest skin incision, in a bluntly rounding manner — and complete the opposite end of the same flap in the same manner. Then make the opposite flap in the same way as the first one, corresponding in shape and size. Dissect these flaps of skin and fascia back to just beyond their bases. While the flaps, and the muscles also, are retracted, divide the more superficial muscles circularly — retract these, and divide the deeper muscles similarly — making the usual provision for the musculo-periosteal covering. The operation is completed as in the ordinary circular ampu- tation — the skin and fascial flaps being sewed over the quilted muscles — the bone being at the apex of a funnel which is somewhat shallower than in the infundibuliform variety of circular amputation (owing to the muscles having been divided at a higher level). Resulting Stump. — While not covering the end of the bone with quite as thick a padding of soft parts, its general features are the same as those following the ordinary circular method. The main part of the scar is terminal, but its ends are apt to be partly lateral (Fig. 304, B). Indications. — This is the form of circular amputation most generally used and is adapted to a greater number of sites than the ordinary circular, or the cuff modification of the ordinary method. Comment. — (1) The skin-flaps may be cut of unequal lengths. (2) The muscles may be divided at one level. (3) This form of circular ampu- tation has largely replaced either of the other forms. OVAL METHOD OF AMPUTATION. General Description. — A modification of the circular method. The skin incision is in the form of an oval, with one of its ends more prolonged and pointed — the soft parts between skin and bone being divided by cutting from without inward — and the lips of the wound being sutured in a single line parallel with the long axis of the wound. Technic. — This amputation being generally used in disarticulations, the upper or pointed end of the oval usually begins just above a joint-line and upon its outer or anterior aspect — the limbs of the oval parting at an angle sufficient to include the head of the distal bone — and sweeping thence in a curve down the lateral aspects of the limb — passing, finally, transversely toward each other — to meet upon the inner or under surface of the distal limb and at a distance beneath the line of articulation calculated to furnish sufficient covering for the head of the proximal one of the bones making up the joint (Fig. 305, A). Having completed the incision through skin and fascia, one of two courses may then be adopted ; — (a) The incision may then be deepened 308 AMPUTATIONS. throughout direct to the bone, by cutting from without — the deep incision, from the point where the arms or limbs of the oval begin to diverge, following the line of the retracted skin. This is the general method in all of the smaller disarticulations and in most of the larger, (b) Or the joint may be opened by the more vertical part of the incision and, after disarticulation, the muscles may be cut from within outward, on a line with the re- tracted skin. Having tied the vessels and cut the nerves and tendons short, the wound is sutured in its long axis (Fig. 307, B). Resulting Stump.— The end of the bone is very fully covered except where the head or articular end of the proximal bone is disproportionately large. The scar is termino-lateral (Fig. 307, B). Indications. — A form of amputation generally used for disarticulating a limb from the trunk, or a smaller limb from a larger limb. The method admits of first opening the joint for investigation before finally deciding upon amputation — and it also admits of securing the vessels before removing the limb. Comment. — The suture-line may run antero-posteriorly in one straight line — or the free, lower convex border of the flap may be turned over and sutured to the upper angular concavity of the wound. Fig. 305.— Oval Mkthod of Ampi TATion : — A, Form and position of oval B, Resulting suture-line. RACKET METHOD OF AMPUTATION. General Description. — A modification of the cir- cular method. The same, in principle, as the oval am- putation — with the addition of a longitudinal vertical cut prolonged from the apex of the oval forming the " han- dle of a racket" — thus giving a better exposure of joints without sacrifice of tissue and securing a better covering for the bone in the upper part of the wound. Technic. — Practically similar to the oval amputa- tion, except that the queue of the racket begins con- siderably farther back over Figs. 306 and 307.— Racket Method of Amputation: — A Form and position of incision ; B, Resulting suture-line. AMPUTATION BY SINGLE FLAP OF SKIN AND MUSCLES. 309 the head of the proximal bone forming the joint — and along this single straight line the knife travels some distance before the arms of the racket begin to diverge. After the beginning of the divergence of the limbs of the racket, the operation is completed as in the oval operation (Fig. 306, A). Resulting Stump. — More satisfactory covering is secured by the racket than by the oval method of amputating. The scar is termino-lateral (Fig. 307, B). Indications. — Disarticulations of the shoulder- and hip-joints, and of the digits from the hand and foot (especially, in the latter instances, where a metatarsal or metacarpal bone is removed with the digit). As in the oval method, but to a much greater extent, does the racket method admit of a pre- liminary examination of the joint through the vertical portion of the incision, before deciding upon amputation. The vessels may also be secured before entirely separating the limb. The muscles in the stump are better preserved. Comment. — (1) The queue of the racket should be placed, if possible, over an intermuscular septum and be deepened in the septum. (2) Ampu- tation by a T-shaped incision is, practically, a form of racket incision. (3) The suture line may run antero-posteriorly (or from the outer to the inner aspect of the part), which is to be preferred. Or the upper portion of the queue may be sutured in this manner and the lower convex portion of the flap brought up and sutured to the angular concavity formed by the di- vergence of the lateral limbs of the racket. FLAP METHODS OF AMPUTATING. (a) Single Flap of Skin and Muscles; — (b) Single Flap of Skin; — (c) Equal Flaps of Skin and Muscles; — (d) Equal Flaps of Skin; — (e) Unequal Flaps of Skin and Muscles; — (f) Unequal Flaps of Skin; — (g) Elliptical Method; — (h) Unequal Rectangular Flaps of Skin and Muscle. AMPUTATION BY SINGLE FLAP OF SKIN AND MUSCLES. General Description. — A method of amputating whereby the stump is covered with a single flap derived from one aspect of a limb — and consists of skin, fascia, and muscles. Such an amputation involves the maximum sacrifice of bone. Technic. — Having fixed upon the saw-line (or line of disarticulation), a point is determined upon below this line, and on that aspect of the limb which is to furnish the flap, which will represent a distance below the saw- line equivalent to i| diameters of the limb at the saw-line. A flap is then marked out with a base equal in width to a half-circumference of the limb at the saw-line, and a length equal to i| diameters of the limb at that line. (Fig. 308, A). Grasping the limb as in the ordinary circular amputation, the knife is entered at the far upper end of the base of the flap, at a right angle to the skin — and passes vertically down the mid-axis of the limb to near the lower limit of the flap — where it forms a squarely or bluntly rounded corner to the flap — thence passes transversely along the lower limit of the flap — and completes the opposite limb of the flap symmetrically with the first limb. This incision passes through skin and fascia. When this integumentary flap has retracted, the muscles are cut obliquely on a line with its retracted edges, so directing the knife as to bluntly bevel the muscular portion as the knife cuts its way 3io AMPUTATIONS. from without inward and upward. This incision passes obliquely through all the muscles and is planned to come down upon the bone at a distance beneath the saw dine equivalent to a good diameter of the bone at the saw-line, thus providing for a musculo-periosteal covering. The knife is then carried through the periosteum so as to form a musculo-periosteal flap with a base of half the bone at the sawdine and a length of once the diameter. The musculo- periosteal covering is then detached back to the saw-line. Divide the hitherto undisturbed soft parts on the opposite side of the limb by a circular sweep of the knife — passing through the skin and fascia of the half-circumference Figs. 308 and 309— Amputation by Single Flap of Skin and Muscle : — A, Form and position of incisions ; B, Resulting suture-line. a little below the level of the base of the single flap — and through the muscles on a level with the base of that flap, including the periosteum. Retract all the soft parts on the proximal side of the saw-line and divide the bone. Suture the musculo-periosteal flap over the bone, the free edge of the periosteal flap being sutured to the half-circumference of the opposite aspect of the periosteum. Quilt the lateral and terminal aspects of the cut muscles in the flap with the transversely cut ends of the muscles on the opposite side of the limb. Suture the terminal and lateral aspects of the skin of the flap tc the transversely divided skin of the opposite side. Resulting Stump. — The stump is at first well covered with muscle — and, when this atrophies, by the replacing fibrous tissue. The scar is lateral (Fig. 309, B). AMPUTATION BY EQUAL FLAPS OF SKIN AND MUSCLE. 311 Indications. — Cases of injury so destroying the soft parts as to leave those of but one aspect available. Also in such cases as Farabeuf's amputa- tion of the upper third of the leg by a single external flap of skin and muscles, or Dubreuil's disarticulation at the wrist by a single external flap of skin and muscles. Comment. — (1) In all flaps, skin must be longer than muscle. (2) There is sometimes an excess of muscle in a flap, part of which should be removed in the process of beveling — but a fully muscled flap is generally desirable. (3) A flap of skin and muscle is more apt to live and makes a better covering than one of skin alone. (4) While the muscle tissue as such may not remain in the tissues of a stump, the muscle-fibers undergoing atrophy, yet the fibrous tissue matting and padding together of the parts is left in its place. (5) A single flap requires the maximum sacrifice of limb, one side of the limb furnishing the entire covering and the bone being con- sequently divided at a higher level. AMPUTATION BY SINGLE FLAP OF SKIN. General Description. — The features of this operation are practically the same as those of the amputation by a single flap of skin and muscles, except that the covering here consists entirely of skin. Technic. — Having incised through skin and fascia, this integumentary flap is dissected up from the muscles throughout, including all overlving fascia, and is retracted above the saw-line (or disarticulation-line) — when the bone is sawed or disarticulated, and the flap dropped over the end of the limb — its terminal aspect being sutured to the transversely divided skin of the opposite side. Resulting Stump. — -Very thinly covered, but as the skin so utilized is generally accustomed to pressure, the result is usually satisfactory. Indications. — Such localities as the knee-joint (disarticulation by a single anterior flap), or the elbow-joint (disarticulation by a single posterior flap). Comment. — (1) As this method is generally used in a disarticulation, a capsulo-periosteal covering may sometimes be provided. (2) Nutrition of a single flap of skin and muscle is more difficult to maintain than in the more ordinary methods — and the nutrition of a flap of skin alone is even harder. (3) Skin-flaps are more used now than formerly because, owing to rarer suppuration, their vitality can be more counted upon. AMPUTATION BY EQUAL FLAPS OF SKIN AND MUSCLE. General Description. — Coverings for the stump are gotten from two opposite aspects of the limb in the form of two flaps composed of all the soft parts covering the limb — having equal bases and lengths — and the allowance of skin being sufficiently in excess to well cover the muscles. Technic. — The preliminaries being the same as in the ordinary circular amputation, two flaps are marked out, each having a width of base equal to the half-circumference at the saw-line and a length equal to three-fourths of the diameter of the limb at that same line (Fig. 310, A). With a large scal- pel, incise along the outlined flaps, passing through skin and connective tissue. When these integumentary flaps have retracted, proceed to form the remainder of the flaps — cutting obliquely along the margin of the retracted skin, in such 312 AMPUTATIONS. a manner that the flaps will be bluntly (not thinly) beveled, directing the knife so that the beveling will be greatest (though not thin even here) at the tip, and thickest toward the base — and coming down upon the bone, or bones, a distance below the saw-line equal to a full diameter of the bone (or of the bigger bone) to allow for musculo-periosteal covering. At this level make a circular cut around the bone through the periosteum with a heavy knife — detach the musculo-periosteal covering of the bone upward to the saw-line — retract the soft parts — divide the bone — suture the musculo-periosteal covering— quilt the muscles — and suture the skin. Resulting Stump. — As a rule, excellently covered by substantial tissues. The scar is termino-lateral (Fig. 311, B). Figs. 310 and 31 1.— Amputation by Equal Mixed Flaps: — A, Form and position of incisions; B Resulting suture-line. Indications. — In the continuity of limbs (between joints) where the bone or bones are equally covered with soft parts. Comment. — (1) The simplest form of making double flaps is by two vertical incisions down the opposite sides of what has been begun as a circular method. (2) One flap may be cut from without inward, and the other by transfixion. (3) In very muscular limbs it makes the meeting of skin over muscles easier if about 2.5 cm. (1 inch) of skin and fascia are dissected up from the muscle, after marking out and dividing the skin and fascia, and then cutting the muscles to the bone in a beveling fashion. AMPUTATION BY EQUAL FLAPS OF SKIN. This operation is the same, in general contour and dimensions of the flaps, as the last — except that the covering here consists of skin only. AMPUTATION BY UNEQUAL FLAPS OF SKIN AND MUSCLES. 313 Technic. — Having incised through skin and fascia, upon the same lines as in the last form of amputation, the two equal flaps of integumentary tissues are dissected up to a level below the saw-line which will allow of providing a musculo-periosteal covering — at this level the muscles, after retracting the skin, are circularly divided down to the bone — this circular incision is con- tinued, on the same level (one-half diameter of the bone below the saw-line) around and through the periosteum — the periosteum is then retracted, with the overlying muscles, to the saw-line— and the bone divided. The musculo- periosteal covering is then sutured over the bone — and the skin margins sutured together. Resulting Stump. — Thinly covered, no muscle being present — but is generally satisfactory in the localities where adopted. The scar is termino- lateral. Indications. — Where a satisfactory muscle covering is hard to secure — as in the lower third of the forearm and leg and in the ringers — the tendons predominating in these localities. Figs. 312 and 313.— Amputation by Unequal Mixed Flaps:— A, Form and position of incisions, and line of bone-section ; B, Resulting suture-line. AMPUTATION BY UNEQUAL FLAPS OF SKIN AND MUSCLES. General Description. — Coverings are furnished by two flaps taken from opposite aspects of the limb — each flap having a base equal to one- half circumference of the limb at the saw-line — and one flap having a length greater than the other. One flap usually furnishes one-third or two-thirds of the covering, and the opposite flap two-thirds or one-third — the longer 314 AMPUTATIONS. flap generally coming from that aspect of the limb most thickly muscled. The flaps may bear any relation to each other in relative length — but the two flaps combined furnish a covering equivalent to i| diameters of the limb at the saw-line. Technic. — This amputation is identical, except as to the length of the flaps, with the amputation by equal flaps of skin and muscle (Fig. 312, A). Resulting Stump. — Generally well covered. With scar either entirely lateral or partlv lateral and partly terminal, dependent upon the preponderance of one flap over the other (Fig. 313, B). Indications. — Thigh and arm throughout, and upper parts of forearm and leg. AMPUTATION BY UNEQUAL FLAPS OF SKIN. General Description. — Coverings are of skin and fascia alone and are furnished by the two opposite aspects of the limb, in the form of two flaps having equal bases and unequal lengths. This amputation is identical throughout with the amputation by equal flaps of skin, except as to the length of the flaps. AMPUTATION BY UNEQUAL RECTANGULAR FLAPS OF SKIN AND MUSCLES. TEALE'S METHOD. General Description. — The general method of performing this operation is similar, in principle, to that for amputation by unequal flaps of skin and muscles — with the exception that the flaps are rectangular (instead of rounded) and of special dimensions. Technic. — Having fixed upon the saw-line, two flaps are marked out, having their bases at that line and extending downward as described below. Find the circumference of the limb at the saw-line. The longer flap is to have its length and its breadth equal to a half-circumference at the saw-line. The shorter flap is to be one-fourth of the length of the longer, and its breadth equal to the remaining half-circumference at the saw-line. The longer flap should be of the same width all the way down. The shorter flap will have a width at its free end equal to very nearly a half-circumference of the limb at the level where it terminates (as that level, in the case of the shorter flap, is so short a distance beneath the saw-line) (Fig. 314, A). Having marked out these flaps, which should be accurately measured, the vertical parts of the inci- sion should be made from above downward, connected at their lower ends by the transverse incision which marks the limit of the longer flap, and by another transverse incision across the opposite half-circumference of the limb, at the proper level, marking off the lower limit of the shorter flap. These incisions at first involve skin and fascia only. When retraction has occurred (making a difference in the transverse incisions only), they are deepened throughout to the periosteum. The vertical limbs of the flaps are first cut to the peri- osteum — then the lower transverse limit of the longer flap, which is dissected up above the lower limit of the shorter flap — which in turn is cut transversely to the periosteum and dissected up. When a level below the saw-line is reached equal to a half-diameter of the bone at the saw-line, a circular incision is made through the periosteum and a musculo-periosteal covering raised. All the soft parts are now retracted above the saw-line and the bone divided. The musculo-periosteal covering is sutured. The longer flap is bent over ELLIPTICAL METHOD OF AMPUTATION. 315 the end of the bone — its end being sutured to the end of the shorter flap — the lateral aspects of the shorter flap are sutured to the lateral aspects of the longer — and the lateral aspects of the bent-over portion of the long flap are sutured to the contiguous lateral aspects of the unbent portion of the long flap. The muscles are quilted prior to suturing the skin. The part is well supported by splint, with only light pressure over the bent longer flap. Resulting Stump. — An H -shaped cicatrix is formed upon the aspect of the limb furnishing the shorter flap. The end of the bone is well covered when the long flap contains a preponderance of muscle — less well covered when containing a preponderance of tendons (Fig. 315, B). Figs. 314 and 315.— Amputation by Unequal Mixed Rectangular Flaps :— A, Form and position of incisions, and line of bone-section ; B, Resulting suture-line. Indications. — In the lower part of the leg (where the longer flap is taken from the anterior aspect) — and sometimes in the lower forearm (where the longer flap comes from the posterior aspect). ELLIPTICAL METHOD OF AMPUTATION. General Description. — This is not a distinct form of amputation. It may be considered a variety of the circular method (an oblique circular), or, equally, a variety of single-flap amputation — and may be held in an intermediate position. It is circular, as to skin incision; and flap, as to its manner of covering the stump and in the suturing. The skin incision is in the form of an ellipse, or a lozenge, the upper part of the ellipse being upon one aspect of the limb and the lower part upon the opposite — the lateral limbs of the figure crossing the lateral aspects of the limb to be amputated. 316 AMPUTATIONS. The idea of the ellipse is brought out by imagining the outline projected upon a fiat surface. Technic. — Having fixed upon the saw-line (or line of disarticulation), a point is determined above this, on, say, the posterior aspect of the limb, which is just above the saw-line — this becomes the highest point of the ellipse. The point marking the lowest point of the ellipse is placed upon the opposite side of the limb, at a distance below the saw-line equal, approximately, to i£ diameters of the limb at the saw-line (as there is but this one source of covering). Between these two points the lateral limbs of the ellipse pass, crossing the lateral aspects of the limb to be operated obliquely, from above downward, and so planned as to give a well-rounded convex termination of the ellipse below to be brought up and fitted into a corresponding concavity above (Fig. 316, A). The incision first passes around the outline of the ellipse, through skin and fascia only. Around the lower three- fourths of the line of this retracted skin and fascia a second incision passes through the muscles to the bone. The soft parts (skin and muscles) forming the lower part of the ellipse (the part that is to remain attached to the limb which is to be retained) are now dissected up from the bone to a point sufficiently below the upper limit of the ellipse to allow a musculo- periosteal or capsulo-perios- teal covering to be raised, and then on up to just below the upper limit of the ellipse (that is, to the saw-line or line of disarticulation). This large single mass of soft parts is well retracted — and the mus- cles on that aspect of the limb opposite to the one furnishing the muscles in the elliptical covering are circularly divided — and the limb sawed, or disarticulated, pre- serving the periosteum in the usual way. The lower convexity of the ellip- tical flap is now sutured into the upper concavity left by the part of the limb removed — the musculo-periosteal, or capsulo-periosteal, covering and the muscles being treated in the general manner by buried gut sutures — and the skin wound closed. Resulting Stump. — The ellipse is generally taken from a locality which affords a plentiful covering for the extremity, which is thus well provided for. The scar is lateral (Fig. 317, B). Indications. — Chiefly used for disarticulations — especially at the elbow and wrist, and in the supramalleolar amputation. Comment. — The muscle portion of the ellipse may be cut also by trans- fixion, although, as usual, less satisfactorily. B Figs. 316 and 317.— Amputation by the Ellipticai Method : — A, Form and position of incision ; B, Re- sulting suture-line. SELECTION OF AMPUTATION METHOD. 317 OSTEOPLASTIC AMPUTATIONS. Description. — An osteoplastic operation, in general, consists in the approx- imation of fresh sections of bone to each other, for the purpose of bringing about union between their opposed surfaces. In an osteoplastic amputation, some portion of a distal bone is raised in the form of an osseoperiosteal flap, adherent to its neighboring soft parts, and applied to the sawed aspect of the proximal bone. In performing osteoplastic amputations a special saw should be provided — a bow-saw with a scroll-blade of strong, narrow, thin metal, which can be turned in any direction while in the act of making bone-sections, such as the Helferich pattern of saw. (A saw for osteoplastic work is now on trial which is, practically, a Gigli saw held in a bow-handle.) The freshened surfaces of bone are variously held in contact — the edges of the surrounding periosteum may be sutured together — the bone surfaces may be wired, pegged, or nailed — or the bone aspects may be held in apposition (especially where there is no strong counter-pull) by the simple suturing of the surrounding soft parts together. Objects of the Osteoplastic Method of Amputation. — (i) Closure and protection of the medullary canal; — (2) Securing of a solid end of bone to meet pressure — brought about by the rounding off of the section of bone whose surface becomes united with the end of the main bone; — (3) Avoidance of adhesions between sawed bone and soft coverings — and, by retaining the mobility of these parts, thereby lessening the chance of neuralgia and ulcera- tion in the stump. Application of the Osteoplastic Method of Amputation. — Up to the present time the chief sites at which this method of amputation has been used have been in the lower extremity — that is, where pressure-bearing stumps are sought. The following are examples of the osteoplastic method of ampu- tation; — Pirogoff's osteoplastic amputation of the foot (page 415) — Lister's modification of Carden's transcondyloid amputation of the thigh (page 440) — Gritti-Stokes's supracondyloid amputation of the thigh (page 441) — Sabane- jeff's amputation of the thigh (Figs. 367, 368, 369) — Bier's amputation of the leg (Figs. 360, 361, and 362). IRREGULAR METHODS OF AMPUTATION. This is a special feature of modern-day surgery. Formerly amputations were done upon hard and fast lines. Now there is a marked tendency to allow the method of amputation to be determined by the special features and need of the individual case — and, as a result, irregular amputations are more commonly done, which, while accomplishing the general indica- tions, are not bound by any set rule, shape, or measurement. The practical surgeon, therefore, should, on common-sense ground, adapt his method of amputation to the case in point, rather than be bound by any fixed form of amputation. The greatest field for irregular forms of amputation is in cases of injury and deformity, rather than in disease. SELECTION OF AMPUTATION METHOD. Many considerations enter into the determination of the best method of amputation in a particular case — and the choice should be given to that method which promises to fulfil the greatest number of the following features; — Characteristics of Good Amputation Methods. — (1) Minimum sacri- 318 AMPUTATIONS. fice of healthy tissue — (2) Best permanent bone-covering — (3) Small wound area — (4) Good blood-supply to stump — (5) Favorably placed cicatrix — (6) Efficient drainage — (7) Simplicity of method — (8) Vessels and muscles cut transversely — (9) Possibility of getting satisfactory musculo-periosteal covering — (10) Ease of exposing bone at saw-line — (n) Ease of bringing soft parts together over bone without tension — (12) Adjustability of artificial limb— (13) Largest range of adaptability — (14) Shapeliness of resulting stump— (15) Rapidity of method. Comment. — Circumstances may determine the selection of an ampu- tation method known in advance not to be the best — for instance, owing to the increased mortality in approaching the trunk, a limb may be removed, in a case where the vitality of the patient demands that every chance be given him, at a level which, while increasing his chances for life, may not furnish the best covering. Again, in amputating about the hand, it may conserve the interest of the patient better to be satisfied with even a partial flap and allow the remainder to heal by granulation, rather than remove an additional \ cm. (\ inch) of an important finger. Rapidity of method used to be the chief consideration, but is now the last in importance, except in special instances — other considerations taking precedence — the operation being done with deliberation and precision. Features of the Circular Method of Amputating. — (1) Minimum sacrifice of bone and soft parts of any method. — (2) Bone especially well covered in the infundibuliform variety. Conical stump sometimes follows retraction, especially in the cuff and modified varieties of the circular. — (3) Smallest wound area of any method. — (4) Tissues of stump well supplied with blood. — (5) Cicatrix terminal. — (6) Efficient drainage when sutured antero-posteriorly. — (7) Most simple of any method. — (8) Main vessels and muscles cut transversely. — (9) Musculo-periosteal covering well provided. — (10) Exposure of bone at saw-line not always easy. — (n) Not always easy to bring soft parts together over bone. — (12) Terminal cicatrix favorable for hollow artificial limbs; unfavorable for solid limbs of lower extremity. — (13) Unfavorable for amputation following injury involving the aspects of the limb to unequal heights. — (14) Somewhat greater tendency to become conical. — (15) Most rapid of any method. Features of the Flap Method of Amputating. — (1) Greater sacrifice of bone and soft tissues (especially in unequal flaps). — (2) Coverings of bone can be more largely regulated to suit demand. Conical stumps less apt to follow than after the cuff and modified forms of the circular. — (3) Greater wound area. — (4) In long flaps the blood-supply may not be so satisfactory. — (5) Terminal or termino-lateral cicatrix — can be planned as desired. — (6) Drainage as efficient as in the circular if the flaps be lateral. Not so efficient if the flaps be antero-posterior. — (7) Not so simple as the circular. — (8) Muscles divided obliquely; vessels also, and latter may be split up. — (9) Musculo-periosteal covering well provided. — (10) Bone easily exposed at the saw-line. — (n) Flaps easily brought together over bone. — (12) Terminal cicatrix favorable for any hollow artificial limb. Terminal portion of termino- lateral cicatrix pressed upon by solid lower limb, and lateral portion pressed upon by any hollow artificial limb. — (13) Favorable for amputations following injury involving the aspects of the limbs unequally. Adaptable to any part of any limb. — (14) Stump apt to be more shapely than that of the circular. — (15) Less rapid than the circular. Circumstances Influencing Death-rate After Amputation. — The death-rate is greater; — (1) The nearer the amputation is to the trunk — (2) QUALITIES OF A GOOD STUMP. 319 In the lower than in the upper limbs — (3) Fur injury than for disease — (4) In men than in women — (5) Between the ages of five to fifteen than before or after. In a tabulation of 3600 amputations performed by himself, Estes has found that, as far as the upper extremity is concerned, there is no appreci- able difference in fatality following amputations through the various parts of the hand, forearm, and arm, until the shoulder-joint is reached, where, naturally, the maximum mortality for the upper extremity occurs. In the case of the lower extremity, on the other hand, there is an increase in mortality from ampu- tations from the foot upward, as the lower limb is ascended, reaching the maximum for the whole body at the hip-joint. Influence of Age upon Amputations. — The young and old, especially if feeble, stand the actual operation less well than those in the reverse condi- tions — and also tolerate the subsequent confinement and apparatus less well. PRIMARY, INTERMEDIATE, AND SECONDARY AMPUTATIONS. In amputations done for disease the time for operation may be selected which will coincide with the patient's best condition to meet the procedure. Amputations done for injury are either Primary (performed immediately after the reception of the injury) — Intermediate (in the course of wound-repair) and Secondary (after healing). In primary amputations the operation should be done at once, if the general condition of the patient permit. If the con- dition of shock (from psychical effect and blood loss) contraindicate imme- diate interference, stimulation, intravenous infusion, the application of heat, and the like, should be resorted to, and the limb removed during the reaction- ary period (generally within thirty-six hours). If the condition of shock is thought to be kept up by the damaged limb, amputation should be done at once, the above measures of revival being maintained the while. THE AMPUTATION STUMP. QUALITIES OF A GOOD STUMP. Firm in consistency — well covered — insensitive — of regular and symmetrical contour. The death-rate and the quality of the stump determine the success of any form of amputation. The following features are characteristic of a good stump — and also indicate the changes which follow successful ampu- tation: — Skin. — Not adherent, except at cicatrix. Capable of withstanding (and, preferably, accustomed to withstand) pressure. Plentifully supplied with blood. Muscles. — The muscles of a stump are not retained as such — the muscle tissue disappears in greater part and is replaced by fibrous tissue. Ex- ceptionally some muscle tissue remains and continues to function. The mass of fibrous tissue which replaces it, however, serves a useful purpose in padding over the end of the bone. In brief, muscle tissue tends to de- crease — and fibrous tissue to increase. Muscles and tendons either become incorporated in the cicatrix, form new attachments to bone, or retract out of the way. Bone. — The ends of the bones become rounded and the medullary canals closed bv fibrous tissue. The end of the bone may either dwindle 320 AMPUTATIONS. and atrophy, or the periosteum may, exceptionally, deposit an excess of bone. The shaft of the bone in an amputated limb also atrophies somewhat. Cartilage. — Following a disarticulation, the articular cartilage left atrophies and sometimes entirely disappears. Nerves. — Also atrophy to a greater or less extent. The ends generally become bulbous, but give no trouble unless they become adherent to bone or cicatrix. Vessels. — Share in the general atrophy, and dwindle to a size com- mensurate with the parts to be supplied. Ligated trunks become obliterated to their nearest branch. Collateral circulation is established. CHARACTERISTICS OF A BAD STUMP. In contradistinction to the general qualities of a good stump, a bad stump may be flaccid, scantily covered, sensitive, of irregular contour — and may be further characterized by the following conditions: — Skin. — Thin, scanty, tightly drawn, adherent, puckered — cold or purple from improper circulation— ulcerated from the same cause, or from trophic changes — involved with corns — and may become malignant. Muscles. — See the changes mentioned in the last section. Connective Tissue. — Bursae may form. Bone. — Osteitis, periosteitis, and necrosis may occur. Two special forms of bad stump are met: — Painful Stump. — May be due to osteitis or periosteitis— but is generally due to compression of the nerve. The nerve may be directly pressed upon by new bone or fibrous tissue — may be stretched over the stump — or may be the seat of neuritis. The end of a painful nerve is generally bulbous — but not necessarily — for often normal-looking nerve-ends are sensitive, and bulbous ones non-sensitive. Conical Stump. — The end of the bone forms the apex of a cone which may be the result of one or more of the following causes — (i) Flaps cut too short — or bone too long. — (2) Sloughing or suppuration of the soft parts. — (3) Post-operative contraction of muscles. — (4) Growth of the bone from an active epiphysis in the young. Comment. — Unfavorable changes are less apt to occur in case of primary union than in the reverse. CONDITIONS INFLUENCING VITALITY OF STUMP. (1) Blood-supply — full or scant, impeded or unobstructed by position of stump-covering. — (2) Compression by bandage, dressing or splint. — (3) Tightness and unnatural position of flaps, as compared with easy and natural position. — (4) Full allowance of skin and non-separation of skin from muscle, as compared with the reverse. — (5) Long and loose tendons and aponeuroses. (6) Too rapid sawing of bone. — (7) Finally, site of amputation, manner of performing the operation, prior local condition, prior constitutional con- dition, and after-treatment — all influence the vitality of the stump. Comment.— The chief dangers to be avoided, are — over-tension in the skin and muscle covering — insufficient blood-supply — rough projections of bone and laceration of the parts — and inclusion of nerves in the cicatrization. Immediate Complications of Amputations. — Spasm of muscles; hemor- rhage from nutrient artery of bone, and general post-operative hemorrhage. FUNCTION OF AMPUTATION STUMPS. 32 1 CONTRACTILITY OF THE TISSUES OF THE STUMP. Skin. — The average contractility of the skin is equivalent to about one- third of its length. It is most contractile where thinnest — where the sub- cutaneous tissue is least — where its attachment to underlving parts is least — where it is least stretched by movements — and where the process of healing has been longest. It is least contractile where the opposite conditions exist. Muscles. — The extremes of muscular contractility vary from a slight separation of divided parts up to a retraction of four-fifths of their length. Contractility is primary, where it occurs at the time of the operation — and secondary, where it occurs subsequent to the operation. Muscles contract most — which are freest between origin and insertion — which have long fibers — and where the process of healing has been longest. The larger the muscle, the greater the amount left in the flap, and the younger and healthier the subject, the greater the contraction. Muscles contract least where the conditions are the reverse of those just mentioned. Skin, Fascia, and Muscles. — The average contractility of the mixed tissues of a flap, or covering, is generally equivalent to about one-third of the length of the flap, or covering. Additional length, however, should be allowed, in calculating the length of coverings — (1) When the transverse section of the bone is large as compared with the transverse section of the soft parts — (2) When the amputation is considerably below the origin of the muscle involved — (3) When secondary retraction is expected. POSITION OF STUMP-CICATRICES. The cicatrix should be so placed as to be the least exposed to pressure after the healing of the wound. With Reference to Their Position. — Scars may be Terminal — at the end of the stump; — Lateral — on one or more sides of the stump; — Termino- lateral — occupying the end and side of the stump. With Reference to Their Production. — The following methods of amputation produce the following kinds of scars; — Circular is followed by terminal scar; — Elliptical, by lateral scar, if the ellipse be oblique, and terminal if the ellipse be nearly horizontal; — Oval, by termino-lateral; — Racket, by termino-lateral; — Single flap, by lateral scar; — Double flap, by terminal scar, if the flaps be equal, and lateral if the flaps be unequal. Comment. — (1) Other things being equal, that method of amputation should be chosen which will bring the scar in the most favorable position for that particular case — and especially with reference to the subsequent functioning of the stump and its adaptability to an artificial limb. (2) In amputating in some situations the muscles of one group being so much stronger than those of another, will often draw a scar, terminal at the time of opera- tion, much higher up upon one aspect than it will be drawn on the opposite aspect. Calculations for such an occurrence have, therefore, to be made. FUNCTION OF AMPUTATION STUMPS. In the Upper Extremity. — The chief function of the stump in the upper extremity is range of movement and power to wield an artificial limb, rather than to bear pressure and weight. As the chief pressure of an artificial limb 322 AMPUTATIONS. comes upon the lateral aspects of the stump, the scar of the stump in the upper extremity is best when terminally placed. In the Lower Extremity. — The chief function of the stump in the lower extemity is to bear pressure and weight. As the chief pressure of a solid artificial limb comes upon the end of the stump, the scar of the stump in the lower extremity is best when laterally placed — in those cases in which a solid artificial limb is to be worn. As, however, most modern artificial limbs for the lower extremity, for the better classes, are hollow, there is not now made the same difference as formerly. The Modern Type of Artificial Limb. — While the above was particu- larly true of the older, cruder forms of artificial limbs (and is still true of the peg-leg), the modern forms of artificial limbs are nearly always made upon the basis of a light, hollow cone, and are so adjusted as to largely adapt themselves to the conditions found — and, generally speaking, most of the pressure is of the lateral aspects of the stump and living limb against the sides of the hollow cone of the artificial limb — so that pressure is exercised upon the lateral aspects of the living stump and limb rather than upon the end — and in the lower as well as in the upper extremity. Comment. — A function of the stump of the upper extremity, especially about the hand, and more particularly of a woman, is to be as symmetrical and shapely as possible, in the case of partial sacrifice of that member. While in the case of a laborer it would certainly be better to sacrifice appearance to strength and utility, one might be urged to sacrifice strength for appearance in the case of a woman of the non-working class. SITE OF AMPUTATION IN CONNECTION WITH THE RESULTING STUMP AND ITS ADAPTABILITY TO AN ARTIFICIAL LIMB. The choice of the site of amputation is determined by the resulting mortality and the fitness of the stump for an artificial limb. Concerning the effect of the amputation site upon mortality, see Circumstances Influencing the Death- rate after Amputation (page 318). In general, the longer the stump, the more useful the limb. Considerable responsibility rests with the surgeon in choosing the site and technic of operation, which will leave the patient the best stump, circumstances considered, adaptable to an artificial limb. While formerly it was taught to save every fraction of limb possible, it is now regarded as better for the patient's interest to select that site and form of amputation furnishing a stump best suited to take an artificial limb of the widest range of function. In planning the form of skin covering, it is to be remembered that if the scar be not terminal, it should be somewhat posterior or lateral, rather than anterior, as the movement to force an artificial limb forward causes the appa- ratus to press upon an anterior scar. For the same reasons the ends of divided bones which lie near the skin, which is generally their anterior aspect, should be rounded, so as not to be pressed by the false limb. In calculating an efficient stump distal to a joint, sufficient length below the joint must be provided to bear upon and wield or swing the artificial limb. Every additional inch is here a matter of importance. The primary function of the upper artificial limb is for prehension — of the lower, to bear weight and admit of locomotion. SURGICAL ANATOMY OF THE FINGERS. 323 As the main growth in the length of the humerus and femur is from the upper epiphysis, amputation through the shaft of these bones, in the young, will almost certainly be followed by a conical stump, which will often require re-amputation. In the lower extremity an osteoplastic amputation is preferable, where feasible — especially in operating for disease, where a deliberate calculation can be made. The general tendency of the day, in operating about the foot, is to regard the foot as a whole, irrespective of joint-lines, and to amputate along improvised lines adapted to the special case. Classical and irregular amputations through the tarsus, though condemned by artificial-limb makers, and though supposed by some to yield too large a proportion of sensitive stumps, should be performed in preference to ampu- tations above the ankle. The lower third of the leg is the place of election in amputating through the leg — rather than the formerly given "hand's breadth" below the knee-joint. In the latter case too limited a length of bone is left for good leverage in adapt- ing a false limb. The site of choice is at the junction of the middle and lower thirds of the leg — thus leaving room for an artificial ankle-joint. Under no circumstances amputate through the tibia higher than 8 cm. (3 inches) below its superior articular surface. In amputating in the neighborhood of the knee-joint, one of the osteoplastic operations by which a piece of bone from the tibia is approximated to the sawn end of the femur in the condyloid region serves an useful purpose, furnishes a stump that will bear pressure well, and generally leaves room for the artificial knee-joint in approximately a normal position. Amputation through the thigh 8 cm. (3 inches) above the knee-joint gives ample room for an artificial joint in a normal position. Amputations through the thigh higher than its middle do not furnish as satisfactory stumps as those at and below this level. In operating above the knee, however, it is to be borne in mind that the weight is also borne by the ischio-perineal region. AMPUTATIONS AND DISARTICULATIONS OF THE UPPER EXTREMITY. SURGICAL ANATOMY OF THE FINGERS. Bones. — Third, second, and first phalanges of the fingers; — and second and first phalanges of the thumb. Articulations and Ligaments. — (a) Second Interphalangeal Articula- tions; anterior; two lateral; capsule. Posterior ligament not present — place supplied by united tendons of extensor communis digitorum and extensor indicis, for index; — extensor communis digitorum for middle and ring; — united tendons of extensor communis digitorum and extensor minimi digiti, for little finger, (b) First Interphalangeal Articulations; — anterior (glenoid); two lateral; capsule. Posterior ligament not present — place supplied by extensor longus pollicis (extensor secundi internodii pollicis) for thumb; — united tendons of extensor communis digitorum and extensor indicis, for index; — extensor communis digitorum, for middle and ring; — united tendons of extensor communis digitorum and extensor minimi digiti, for little finger, (c) Metacarpo-phalangeal Articulations; — anterior; two lateral; capsule. 324 AMPUTATIONS. Posterior ligament — not present as distinct ligament — place supplied by scattered fibers from one lateral ligament to opposite lateral ligament; ex- tensor brevis pollicis (extensor primi internodii pollicis) ; extensor longus pollkis (extensor secundi internodii pollicis), for thumb; — and the same ligaments for the other fingers as those for the first interphalangeal joints. Sesamoid Bones. — Two on palmar surface of metacarpophalangeal joint of thumb, developed in inner and outer heads of flexor brevis pollicis, which here replace the anterior ligament. One or two on palmar surface of metacarpophalangeal joint of index and little fingers. Rarely one on palmar surface of metacarpophalangeal of middle and ring fingers. Rarely one on palmar surface of interphalangeal joint of thumb. Muscles and Tendons. — (A) Of Fingers in General; — (a) On palmar aspect; — flexor sublimis digitorum; flexor profundis digitorum. (b) On dorsal aspect of index; — united tendons of extensor communis digitorum and extensor indicis; first dorsal interosseous (abductor indicis). On dorsal aspect of middle finger; — extensor communis digitorum; second dorsal interosseous; third dorsal interosseous. On dorsal aspect of ring finger; — extensor communis digitorum; fourth dorsal interosseous; second palmar interosseous. On dorsal aspect of little finger; — united tendons of extensor communis digitorum and extensor minimi digiti; fourth lumbrical; third palmar interosseous, (c) On ulnar aspect of little finger; — abductor minimi digiti; flexor brevis minimi digiti. (B) Of Thumb; — (a) On palmar aspect; — flexor longus pollicis. (b) On dorsal aspect; — extensor brevis pollicis (extensor primi internodii pollicis) ; extensor longus pollicis (extensor secundi internodii pollicis). (c) On radial aspect; — abductor pollicis; outer head of flexor brevis pollicis. (d) On ulnar aspect; — inner head of flexor brevis pollicis; adductor obliquus pollicis; adductor transversus pollicis. Sheaths (Thecae). — Processes of palmar fascia extending down fingers from palm of hand to bases of last phalanges, being attached to lateral margins of first phalanges, and forming sheaths for flexor tendons. Synovial Membranes. — (a) Of index, middle, and ring fingers; — extend from base of last phalanges up to bifurcation of palmar fascia, namely, about opposite necks of metacarpals (corresponding, approximately, to middle crease on palm of hand, for index, and to lowest crease for middle and ring), (b) Of thumb and little finger; — extend from base of last phalanges to and into great synovial sac of hand. Nails. — Overlie the soft parts covering the distal two-thirds of the last phalanges on their dorsal aspect. Arteries. — (a) Palmar Supply; — Four palmar digital branches of super- ficial arch; radialis indicis of deep arch; princeps pollicis of deep arch, (b) Dorsal Supply; — Second and third dorsal interosseous branches of posterior radial carpal branch of radial; first dorsal interosseous (metacarpal) branch of radial; dorsalis indicis branch of radial; dorsalis pollicis branch of radial. Veins. — (a) Superficial; — digital (one on each side), (b) Deep; — venae comites. Lymphatics. — One lymphatic vessel on dorsal and one on palmar aspect of each side of each finger. Nerves. — (a) Median supplies — thumb, index, middle, and ring fingers, (b) Ulnar supplies — ring, little, and middle (sometimes), (c) Radial supplies — thumb, index, middle, and ring. GENERAL CONSIDERATIONS IN FINGER AMPUTATIONS. 325 SURFACE FORM AND LANDMARKS OF THE FINGERS. The proximal ends of the phalanges form the knuckles — and therefore the joint-line is beyond the knuckle. The interphalangeal joint-lines are found, with approximate accuracy, by flexing the distal phalanges at a right angle with the proximal phalanges (or metacarpals) — and then prolonging the mid-lateral axis of the proximal bone forward — this line will pass through the center of the joints. More accurately, the last interphalangeal joint is 2 mm. (yV inch), the first interphalangeal joint 4 mm. (^ inch), and the meta- carpophalangeal joint 8 mm. (J inch) beyond the prominence of the knuckle. The sesamoid bones can be felt in front of the metacarpo-phalangeal joint of the thumb. The palmar aspects of the fingers are crossed by three series of transverse folds; — the highest are single for the index and little fingers, double for the middle and ring — and are nearly 2 cm. (f inch) below the metacarpo-phalan- geal joints; — the middle are double for all the fingers — and are directly opposite the first interphalangeal joints; — the lowest are single for all the fingers — and are a little above the second interphalangeal joints. The thumb has two folds — the higher, single, crosses the metacarpo-phalangeal joint obliquelv; — the lower, single, directly opposite the first interphalangeal joint. The free margin of the webs of the fingers is about 2 cm. (f inch) below the metacarpo-phalangeal joints. The lateral ligaments of the joints are nearer the palm than the dorsum. The sheaths of the flexor tendons extend from the metacarpo-phalangeal joints to the proximal ends of the third phalanges — are least distinct opposite the joints — gape when cut — and lead into the palm of the hand. The digital arteries bifurcate about 8 mm. (J inch) above the free margin of the webs of the fingers. The epiphyses form the heads of the four inner metacarpals, the base of the first, and the bases of all the phalanges — all joining the shaft about the twentieth year. The skin of the palm is thick, dense, and adherent — that of the dorsum, thin and loosely connected to the fascia. GENERAL SURGICAL CONSIDERATIONS IN AMPUTATIONS OF THE FINGERS. Minimum sacrifice of tissue is the rule in all amputations about the fingers — especially in thumb, index, and little fingers — so that there may be left some length of digit, no matter how short, to approximate to other digits and objects grasped. The basal principle here is — (a) Save a stump, no matter how imperfect — (b) provided tendons remain connected to it, or can be sutured to it — (c) and sound skin can be found to cover it. Indeed, the last may be dispensed with, if there seem fair chance that granulation will cover over the part. Amputations here, especially in cases of injury, are often irregular operations, and amount to little more than trimming of mangled parts — as a bony stump of irregular form, provided flexion and extension exist, is better than a shorter stump of more symmetrical contour. Since the bones of the fingers are large, as compared with the surrounding soft parts, an ample allowance of covering should be made. 326 AMPUTATIONS. In the interphalangeal region the joints are concave from side to side, with the concavity toward the finger-tips. In the metacarpo-phalangeal region the convexity is toward the tips. Owing to the function of the fingers, cicatrices should be planned to fall out of the way of pressure — should not be terminal or palmar — and are best placed on the dorsum. The stump of a phalanx is often considerably in the way unless the flexor and extensor tendons can act upon it. Formerly all of a finger below the center of the middle phalanx (where the superficial flexor is attached) was sacrificed. Now, however, the flexor tendon is sutured into the mouth of the cut theca and periosteum, or even the flap, thereby securing control of the phalangeal stump. The fibrous sheaths of the flexor tendons gape open when cut across and their channels lead directly into the palm of the hand, and those of the thumb and little finger into the great synovial sac beneath the annular ligament of the wrist, furnishing a ready avenue for possible infection. They should, therefore, be closed by two or three catgut sutures, passed from the palmar to the dorsal aspect of the sheath with a curved needle, whenever cut in the course of an amputation about the fingers. But when cut, especially when the finger is extended, the flexor tendons draw up into the sheath out of sight, and if the sheaths were then sutured the action of the flexor tendons upon the phalangeal stump would be lost. Therefore, to give the flexor tendons a firm hold upon the part, the sutures should include flexor tendon, theca, and periosteum — passing, in order, from before backward, through anterior wall of theca, flexor tendon (if distal to center of middle phalanx), or tendons (if proximal to center of middle phalanx), and posterior wall of theca, which is blended with the periosteum. Where the theca is imperfect, the tendons should be sutured to neighboring periosteum, glenoid ligament, adjacent fibrous tissue, or into the tissues of the flap. Thus the mouth of the sheath is closed by the tendon while anchoring the latter to the part. This sheath is absent over the terminal phalanx and over the distal inter- phalangeal joint — and is indistinct over the metacarpo-phalangeal joint. Where absent, the flexor tendons should be sutured into the neighboring structures, as just described. Where the periosteum is to be included in the suture, it should be stripped back before dividing the bone. If the base of the terminal phalanx be saved, the attachment of the deep flexor is preserved. If the upper third of the second phalanx be saved, the attachment of the superficial flexor is preserved. If the amputation be through the first interphalangeal joint, or proximal to it, both flexor tendons will be lost — unless they are sutured into the neighboring structures as just described (into theca, periosteum, or flaps). The best form of amputation for all parts below the metacarpo-phalangeal joint is one in which a palmar flap predominates — furnishing a covering of thick, sensitive skin accustomed to pressure — and a cicatrix on the dorsum. In disarticulations by the palmar flap method, a slight downward con- vexity given to the transverse dorsal incision gives a better apposition with the palmar flap than would a straight transverse incision over the dorsum of the joint. Disarticulation is best accomplished from the dorsum, after flexing the joint — cutting, in order, through the following structures — skin; fascia; extensor tendons (attached to the bases in the interphalangeal joints, and forming the posterior ligaments of the joints); dorsal portion of the capsule; the knife passing thence behind the base of the distal bone and cutting the AMPUTATION THROUGH LAST PHALANX OF FINGERS. 327 lateral ligaments from within outward; anterior portion of capsule, from within; and anterior ligament, also from within. The glenoid ligament, the fibro-cartilaginous plate which is mainly attached to the base of the distal bone, should be left in the stump. A longitudinal cut made in the mid-lateral aspect of the finger will have the digital arteries on the palmar side. All flaps should be cut from without inward — none by transfixion. The heads of the metacarpals should be preserved, especially in those who require strength in their hands. Their removal weakens the hand. If left in, they and their soft overlying parts eventually atrophy to some extent and the gap is not so apparent. If removed, somewhat greater symmetry is acquired at the cost of strength. Musculo-periosteal coverings in these small amputations through the phalanges are often difficult to provide, but should be provided where possible — even a periosteo-capsular covering in disarticulating. In making all palmar incisions, the part should be extended — and flexed while making dorsal incisions. The fullest coverings will be thus secured. Guard against making flaps too narrow and pointed — the heads of the bones to be covered are all large, following disarticulation. All incisions outlining the different amputations pass through only skin and fascia at first. All ligatures should be catgut — and the skin sutures either silk or silkworm- gut. In all amputations about the fingers the stump should be snugly dressed and bandaged, and an anterior splint should be included in the dressing. AMPUTATION THROUGH LAST PHALANX OF FINGERS, IN GENERAL. Best Form. — Palmar Flap. Comment. — The palmar flap method furnishes the best form of covering — and, owing to the presence of the nail, is about the only available form of amputation in this locality. AMPUTATION THROUGH LAST PHALANX OF FINGERS BY PALMAR FLAP. Description. — Single palmar flap of all tissues down to bone. Position (for all Amputations about the Fingers). — Patient on back; upper extremity held out from body, or, better, supported on a small table; hand pronated and fingers flexed while dorsal incisions are made, and hand supinated and fingers extended during palmar incisions. Assistant stands in front of surgeon, between him and shoulder of patient — steadying the hand with both of his own and holding the adjacent fingers out of the way. Surgeon holds digit to be removed with thumb and forefinger of left hand — with back of thumb downward and his hand pronated during palmar incisions — ■ and with his thumb upward and his hand supinated during dorsal incisions. Landmarks. — The space is so limited that the saw-line can only be placed between the matrix of nail and proximal end of second phalanx. Incision. — (1) Palmar incision — from saw-line downward along lateral aspect of phalanx, midway between dorsal and palmar surfaces, around the center of the pulp, and back to the saw-line on the opposite side. (2) Dorsal 328 AMPUTATIONS. incision — connects upper ends of palmar incision, passing transversely over the dorsum with slight downward convexity. (For principle, see Fig. 318, C, and 319, B, where disarticulation at the last interphalangeal joint is shown.) Fig. 318.— Amputations about the Finger :— A, Through first phalanx, by equal palmar and dorsal flaps ; B, At first interphalangeal joint, by long palmar and short dorsal flaps ; C, At second interphalangeal joint, by palmar flap. Operation. — Having outlined these incisions, carry the palmar incision to the bone — dissect up all palmar tissues down to the bone — deepen the dorsal incision to the bone — retract the soft parts, in the entire circumference - — and saw the phalanx with a light saw, while holding the tip of the phalanx Fig. 319. — Amputations about the Thumb: — A, Disarticulation of thumb at carpo- metacarpal joint by oval incision; B, Disarticulation at metacarpophalangeal joint by oblique palmar flap; C, Disarticulation at interphalangeal joint by palmar flap. with bone-holding forceps (as there is generally too little room for the fingers of the operator to grasp). Ligate the palmar digital artery on each side. Suture the deep flexor tendon to the periosteum or flap. Suture the palmar flap to the transverse dorsal line. DISARTICULATION THROUGH SECOND JOINT OF FINGERS. 329 DISARTICULATION AT SECOND INTERPHALANGEAL JOINT OF FINGERS, IN GENERAL. Best Method. — Palmar Flap. Other Methods. — Short Dorsal and Long Palmar Flaps. Comment. — Even where the double flap method is adopted, the covering must be almost entirely palmar, owing to the position of the nail. DISARTICULATION THROUGH SECOND INTERPHALANGEAL JOINT OF FINGERS BV PALMAR FLAP Position. — As for amputation through last phalanx (page 327). Landmarks. — Second interphalangeal joint-line. Incisions. — (1) Palmar incision — begins opposite the joint-line, midway between dorsal and palmar surfaces — passes down lateral aspect for a distance equal to i| diameters of the finger at the disarticulation-line — crosses palmar aspect with bluntly rounded corners — and passes upward to the corresponding point on the opposite side of the finger. (2) Dorsal incision — connects upper end of palmar incision by a transverse incision made over dorsum of joint, with slight downward convexity (Fig. 318, C). Operation. — Having outlined these incisions through skin and fascia, carry the palmar incision to the bone on a line with the retracted skin — and dissect the soft parts up from the bone. Deepen the dorsal incision to the bone, along the line of retracted skin — open the joint from the dorsum and disarticulate from within outward. There is no theca here to close. Suture the deep flexor tendons into the neighboring tissues. Ligate the two digital arteries. Suture the palmar flap to the dorsal line. Comment. — The joint is sometimes first disarticulated by a transverse dorsal incision — and the palmar flap then cut from within outward — but with less satisfactorv result. DISARTICULATION THROUGH SECOND INTERPHALANGEAL JOINT OF FINGERS BY SHORT DORSAL AND LONG PALMAR FLAPS. Position — Landmarks. — As in the last operation. Incisions. — (1) Palmar flap — little more than length of diameter of finger at disarticulation-line — begins at disarticulation-line, in mid-lateral aspect of finger — passes directly down the finger for the above distance — crosses the palm with bluntly rounded corners— and passes up the finger to the corresponding site upon the opposite side. (2) Dorsal flap — one-third the length of the palmar — beginning and ending at the same points as the palmar — and crossing the dorsum with bluntly rounded corners at the above distance below the upper limit. (For principle, see Fig. 318, B.) Operation. — Carry these incisions to the bone on the lines of retracted skin, completing the palmar incision first — dissect the soft parts from the bone up to the joint-line — open the dorsal aspect of the joint and disarticulate — completing the operation as in the above method. 330 AMPUTATIONS. AMPUTATION THROUGH SECOND PHALANX OF FINGERS, IN GENERAL. Best Methods. — Palmar Flap; Short Dorsal and Long Palmar Flaps. Other Methods. — Equal Dorsal and Palmar Flaps; Equal Lateral Flaps; Single External Flap (for index); Single Internal Flap (for little finger); Circular; Oblique Circular; Dorsal Flap. Comment. — Any single flap, unless taken from the palm, brings part of the scar into the palm. A dorsal flap gives a palmar scar. All equal flap methods and circular methods give terminal scars. AMPUTATION THROUGH SECOND PHALANX OF FINGERS BY PALMAR FLAP. Position. — As for amputation through last phalanx (page 327). Landmarks. — Lines of proximal and distal joints. Incisions. — (1) Palmar incision — begins opposite saw-line in mid-lateral aspect of finger — passes vertically downward a distance equivalent to ij diameters of the finger at the saw-line — crosses the palmar aspect with bluntly rounded corners — passes vertically upward in the mid-lateral aspect of the opposite side to a point corresponding with the one of beginning. (2) Dorsal incision — connects the upper limits of the limbs of the palmar incision, passing transversely across the dorsum with slight downward convexity. (For principle, see Fig. 318, C.) Operation. —The above incisions are now deepened to the bone, the palmar first and then the dorsal, on a line with the retracted skin. The soft parts are dissected off the bone back to the saw-line and are retracted while the bone is being sawed. Ligate the digital arteries. In amputating distally to the upper third of the second phalanx, the superficial flexor tendon will retain its attachment. The deep flexor tendon will, however, be severed and should be sutured into the mouth of the fibrous sheath (which ends at the middle of the second phalanx) and into neighboring periosteum and soft parts, if necessary — the closure of the sheath being accomplished in the process of anchoring the deep flexor tendon. The flap is then sutured in the usual way. AMPUTATION THROUGH SECOND PHALANX OF FINGERS BY SHORT DORSAL AND LONG PALMAR FLAPS. Position — Landmarks. — As in the last operation. Incisions. — (1) Palmar Flap — (2) Dorsal Flap — both outlined exactly as in the disarticulation through the second interphalangeal joint by short dorsal and long palmar flaps — with the necessary calculations for the change in position (page 327). (For principle, see Fig. 318, B.) Operation. — For the technic of the operation, see the disarticulation just mentioned. For the manner of dealing with the structures encountered, see the operation last described. AMPUTATION THROUGH FIRST PHALANX OF FINGERS. 33 1 DISARTICULATION AT FIRST INTERPHALANGEAL JOINT OF FINGERS, IN GENERAL. Best Methods. — Same as mentioned under amputation through second phalanx (page 330). Other Methods. — Same (page 330). Comment. — Same (page 330). DISARTICULATION AT FIRST INTERPHALANGEAL JOINT OF FINGERS BY PALMAR FLAP. Position. — As in amputation through last phalanx (page 327). Landmarks. — First interphalangeal joint-line. Incisions. — As for disarticulation at second interphalangeal joint by palmar flap (page 329). (For principle, see Fig. 318, C.) Operation. — Same, in principle, as the disarticulation at the second joint of the fingers. Both flexor tendons are here severed below their inser- tions, and the use of the proximal phalanx would be much interfered with unless these tendons were securely attached to the sheath, periosteum, or glenoid ligament of the stump. DISARTICULATION AT FIRST INTERPHALANGEAL JOINT OF FINGERS BY SHORT DORSAL AND LONG PALMAR FLAPS. Position — Landmarks. — As in the last operation. Incision. — Same as in disarticulation at the second interphalangeal joint (page 329). (For principle, see Fig. 318, B.) Operation. — Same as in the operation just referred to (page 329). For treatment of the flexor tendons, see disarticulation at first interphalangeal joint by a palmar flap (page $^, 1) . AMPUTATION THROUGH FIRST PHALANX OF FINGERS , IN GENERAL. Best Methods. — Palmar Flap; Short Dorsal and Long Palmar Flaps. Other Methods. — Same as mentioned under amputation through second phalanx (page 330). To which list may be added the oval method. Comment. — Same as made under the operation just referred to (page 33o)- AMPUTATION THROUGH FIRST PHALANX OF FINGERS BY PALMAR FLAP. Position. — As for amputation through last phalanx (page 327). Landmarks. — Lines of metacarpophalangeal and first interphalangeal joints. Incisions — Operation. — Same as for amputation through second phalanx (page 330). For reference to flexor tendons, see under disarticulation at first interphalangeal joint by palmar flap (page 331). 332 AMPUTATIONS. AMPUTATION THROUGH FIRST PHALANX OF FINGERS BY SHORT DORSAL AND PALMAR FLAPS. Position — Landmarks. — As in the above operation. Incision — Operation. — As for amputation through the second phalanx by the same method (page 330). For reference to treatment of the flexor tendons and sheaths, see under disarticulation at first interphalangeal joint by palmar flap (page 331). DISARTICULATION OF FINGERS AT METACARPO-PHALANGEAL JOINTS, IN GENERAL. Best Methods. — Oval Method (for fingers in general and for thumb); Externo-palmar Flap of Farabeuf (for index) ; Interno-palmar Flap of Fara- beuf (for little finger); Oblique Palmar Flap (for thumb). Other Methods. — Equal Lateral Flaps; Circular Incision, joined by vertical dorsal queue; Palmar Plap; Large External and Small Internal Flaps (for index); Large Internal and Small External Flaps (for little finger). Comment. — The first four are the best in the sites indicated and are superior to the others mentioned. The oblique palmar flap for the thumb gives the best covering where sufficient tissue exists. DISARTICULATION OF FINGERS, IN GENERAL, AT METACARPO- PHALANGEAL JOINT. BY OVAL METHOD. Description. — The queue is placed over the dorsum of the joint and the center of the oval passes across the palmar aspect at the web-line. Position. — As for amputation through the last phalanx (page 327). Landmarks. — Head of metacarpal; metacarpo-phalangeal joint-line; web of finger. Incision. — Begins just above head of metacarpal, on its dorsal aspect (in the position corresponding with its neck) — passes down the median dorsal aspect over the prominence of the knuckle, to just beyond the base of the first phalanx (which is about midway between the metacarpo- phalangeal joint-line and the free edge of the web) — at this point the hitherto median incision diverges into two symmetrical limbs — each sweeping across the dorso-lateral aspect of the finger to just below the junction of the finger with the web — and thence transversely across the palmar surface in the line of the crease, on a level with the free border of the web, coming to the opposite side just below the junction of the web with the finger. This rather extensive incision is best made with three strokes — from commencement to web of one side — from point of divergence of median line to web of opposite side — and across palmar surface connecting the two limbs (Fig. 320, H, and 321, E). Operation. — The above incision through skin and fascia is now deepened. The palmar portion is cut to the bone while the finger is forcibly extended. The lateral portions are carried to the bone, cutting the lumbricales and interossei. The soft parts are retracted to the joint-line. The extensor tendons are then cut and the joint thus entered from the dorsum — the lateral METACARPO-PHALANGEAL DISARTICULATION OF THUMB. 333 ligaments and glenoid ligament being cut from within and the disarticulation Fig. 320.— Amputations about the Fingers, Hand, and Wrist : — A, Through second phalanx of little finger, by single internal flap ; B, At first interphalangeal joint, by oval method ; C, Through second phalanx, by equal lateral flaps; D, Through second phalanx of index, by single external flap ; E, Through first phalanx, by oblique circular; F, Through first phalanx, by ordinary circular ; G, At metacarpophalangeal joint of little finger, by interno-palmar flap; H, At metacarpophalangeal joint, by oval method ; I, At metacarpophalangeal joint of index, by externo-palmar flap ; J, Of little finger at carpo-metacarpal joint, by racket method ; K, Same of ring finger; L, Of middle finger and part of metacarpal, by racket method ; M, Of two inner fingers at carpo-metacarpal joints, by racket method ; N, Of thumb at carpo-metacarpal joint, by racket method ; O, Through metacarpophalan- geal joint of thumb, by oblique palmar flap ; P, P, At wrist-joint, by external flap. completed. The two digital arteries are tied and the synovial sheath closed. The edges of the sides of the oval are sutured in one vertical, antero-posterior ,334 AMPUTATIONS. line, in continuation with the queue of the incision. The splint applied should include the wrist-joint. Comment. — (i) The joint may be opened from the palmar surface, by cutting the glenoid ligament transversely against the base of the metacarpal. In either case, the glenoid ligament is retained. (2) No attempt is made to attach the flexor tendons, as the entire finger is removed and there would be nothing for them to flex. (3) The lower end of the vertical cicatrix is eventually drawn up out of the way of palmar pressure. (4) If it be desired to remove the head of the metacarpal, prolong the queue of the incision upward — free the neck of the bone of soft parts, hugging the bone in the process — retract the soft parts — and, while partly lifting the metacarpal from its bed by traction upon the finger, if still attached, or by grasping the head of the bone with bone-forceps, if disarticulation have occurred, pass a chain or Gigli saw beneath the bone and make a section, so as to bevel the bone obliquely from behind downward and forward, and from the inner- or outer aspect toward the median aspect (Fig. 321, C and D). (5) Where the skin of the palm is very dense and hard, as in laborers, an awkward pro- jection of skin may be left on the palmar surface of the convexity of the oval, which can be removed and make the suturing more satisfactory by cutting out a V-shaped portion from the palmar aspect. This, however, amounts, practically, to lateral flaps, and brings part of the scar into the palm. (6) Avoid cutting into the web. DISARTICULATION OF THUMB AT METACARPO-PHALANGEAL JOINT BV OVAL METHOD. Position. — As in amputation through last phalanx (page 327). Landmarks. — Neck of first metacarpal; metacarpo-phalangeal joint. Incision. — Begins on dorsal aspect of neck of metacarpal, to ulnar side of median line — passes directly down over head of bone and along median aspect of extensor tendons, or slightly to ulnar side, to just beyond the base of the metacarpal — thence the median incision diverges — each limb passing obliquely across the dorso-lateral borders of the thumb, so as to cross and meet upon the palmar aspect opposite the center of the first phalanx (Fig. 3i9, A). Operation. — Deepen this incision to the bone along the line of the re- tracted skin — dividing the extensor brevis pollicis and extensor longus pollicis opposite the metacarpo-phalangeal joint, and the flexor longus pollicis opposite the middle of the first phalanx. The sesamoid bones are to be detached from the base of the first phalanx and left in the stump. As far as possible the muscles which are attached to the base of the first phalanx (extensor brevis pollicis, adductor obliquus pollicis, adductor transversus pollicis, abductor pollicis, flexor brevis pollicis), as well as the long flexors and extensors, should be sutured into the tissues of the stump — as considerable range of movement is thereby secured for the metacarpal bone, whereby it may offer counterpressure to the fingers. Close the synovial sheath. Tie the dorsalis pollicis and two branches of the princeps pollicis. Suture the oval in a single straight line in continuation of the queue. Comment. — The head of the metacarpal is large and requires ample covering. METACARPOPHALANGEAL DISARTICULATION OF INDEX-FINGER. 335 DISARTICULATION OF THUMB AT METACARPO-PHALANGEAL JOINT BY OBLIQUE PALMAR FLAP — (FARABEUF). Description. — This method consists of two U-shaped incisions, the dorsal having its convexity upward, the palmar having its convexity down- ward — the limhs of each U passing, and obliquely meeting, on the lateral aspects of the thumb. Position. — As for amputation through the last phalanx (page 327). Landmarks. — Lines of the metacarpophalangeal and interphalangeal joints. Incision. — The convexity of the dorsal U is upward and corresponds with the dorsal aspect of the metacarpophalangeal joint. The convexity of the palmar U is downward and is placed just above the interphalangeal joint-line. Between these two rounded extremities the lateral limbs pass in an oblique direction along the lateral borders of the thumb, becoming continuous with each other (Fig. 320, O, and 319. B). Operation. — This incision is deepened throughout to the bone, along the line of the retracted skin — the extensor brevis pollicis and extensor longus pollicis are divided over the metacarpophalangeal joint, and the flexor longus pollicis about the center of the first phalanx — the soft parts are freed back to the joint-line — the sesamoid bones are detached from the base of the first phalanx and left in the Map — the joint is entered from above and disarticulation completed. The dorsalis pollicis and the two branches of the princeps pollicis are to be tied. The synovial sheath is closed. The convexity of the palmar flap is sutured into the concavity of the dorsal wound — bringing the cicatrix well on to the dorsum and out of the way of pressure Comment. — As the head of the metacarpal is disproportionately large, an additional allowance of covering must be made. DISARTICULATION OF INDEX-FINGER AT METACARPO-PHALANGEAL JOINT P.V EXTERNO-PALMAR FLAP— (FARABEUF). Description. — This is really an oval method, so modified as to bring the cicatrix upon the interno-dorsal aspect of the metacarpophalangeal region — so that fingers and objects opposed to that aspect may not come into contact with the scar. Position. — As for amputation through last phalanx of finger (page 327). Landmarks. — Metacarpophalangeal joint-line; middle of first phalanx; web. Incision. — Begins at metacarpophalangeal joint-line, immediately over the median aspect of the extensor tendon — passes vertically down the median dorsal aspect of the finger, in the above relation to the extensor tendon, to the center of the first phalanx — thence sweeps across the lateral and palmar aspects to the web — and thence passes in a straight line, by the shortest route, up the inner side of the finger to the place of beginning (Fig. 320, I). Operation. — This superficial incision is deepened to the bone — the soft parts retracted to the joint-line — disarticulation effected — and the operation completed as in the simple oval method. The digital, dorsalis indicis, and radialis indicis arteries are to be tied. The flexor sheath is to be closed — and the parts so sutured as to cause the cicatrix to occupy the position of the straight portion of the incision, upon the interno-dorsal aspect. 336 AMPUTATIONS. Comment. — (i) The placing of the incision over the median, or even slightly to the ulnar, rather than the radial aspect of the extensor tendon (as recommended by Farabeuf), gives ampler covering, and a greater cer- tainty of the scar falling well to the ulnar side. (2) If the head of the meta- carpal be removed, it is exposed as mentioned under the oval method (page 334, Comment). DISARTICULATION OF LITTLE FINGER AT METACARPOPHALANGEAL JOINT BV INTERNO-PALMAR FLAP— (FARABEUF). Description. — This, also, is a modification of the oval method, so cal- culated as to bring the cicatrix upon the externo-dorsal aspect of the meta- carpophalangeal region — that non-scar tissue may come into contact with objects which press the stump. Position — Landmarks. — As in the last operation. Incision. — Begins at the metacarpo-phalangeal joint-line, immediately over the median aspect of the extensor tendon — passes vertically down the dorsal aspect of the finger, in the above relation to the extensor tendon, to the center of the first phalanx — thence sweeps across the lateral and palmar aspects of the finger to the web — and thence passes in a straight line, by the shortest route, up the radial side of the finger to place of beginning (Fig. 320, G). Operation. — The steps of the disarticulation are completed as in the corresponding operation just described upon the thumb, the reverse of which this is, in every respect. Two digital arteries are to be tied. The parts are to be so sutured as to cause the cicatrix to occupy the position of the straight portion of the incision, upon the externo-dorsal aspect of the region, buried in the groove formed by the adjacent finger. Comment. — (1) Carrying the incision over the median aspect of the extensor tendon insures more covering than if the incision passed down the ulnar aspect, as recommended by Farabeuf — and also makes it more certain that the scar will fall well to the radial side of the stump, out of the way of pressure. (2) If it be desired to remove the head of the metacarpal, it is exposed as described under the oval method of disarticulating the fingers in general — the bone being here beveled from ulnar to radial aspect, and from dorsum to palm. SURGICAL ANATOMY OF THE HAND. Bones. — (a) Metacarpals, of thumb and fingers; — (b) Carpals; — First Row; scaphoid, semilunar, cuneiform, pisiform; — Second Row; trapezium, trapezoid, os magnum, unciform. Articulations and Ligaments. — (A) Metacarpophalangeal Articula- tions; — See description under Surgical Anatomy of Fingers. (B) Meta- carpals with each other (Intermetacarpal) ; — (a) Carpal ends of four inner metacarpals; — dorsal, palmar, and interosseous ligaments, and synovial membrane; — (b) Digital ends of four inner metacarpals; — transverse meta- carpal ligaments (on palmar aspect). (C) Inner Metacarpals with the carpus; — dorsal, palmar, and interosseous ligaments, and synovial membrane. (D) Metacarpal of thumb with trapezium; — capsular ligament. (E) Articu- lations of second row of carpals with each other; — three dorsal, three palmar, and three interosseous ligaments, between trapezium and trapezoid, between SURGICAL ANATOMY OF THE HAND. 337 trapezoid and os magnum, and between os magnum and unciform; and synovial membrane between each. (F) Articulations of carpals of first row with each other; — two dorsal ligaments between scaphoid and semilunar, and between semilunar and cuneiform; two palmar ligaments between scaphoid and semilunar, and between semilunar and cuneiform; two interosseous ligaments between scaphoid and semilunar, and between semilunar and cuneiform; capsular ligament between cuneiform and pisiform; two palmar ligaments between pisiform and unciform process of unciform, and between pisiform and fifth metacarpal; and synovial membrane between each bone. (G) Articulations of two rows of carpals with each other (medio-carpal) ; — palmar, dorsal, external lateral and internal lateral ligaments, and synovial membrane (between each row). Anterior Annular Ligament. — (a) Attachments; — Internally; pisiform and unciform process of unciform bone. Externally; tuberosity of scaphoid inner part of anterior surface, and ridge on trapezium. Superiorly; con tinuous with deep fascia of forearm. Inferiorly; continuous with palmar fascia, and furnishing attachment to some of muscles of thumb and little finger, (b) Structures passing superficial to anterior annular ligament (from without inward) ; radial vessels and nerve, flexor carpi radialis, palmaris longus, ulnar vessels and nerve, flexor carpi ulnaris. (c) Structures passing beneath anterior annular ligament (from above downward) ; flexor sublimis digitorum, median nerve, flexor profundus digitorum, flexor longus pollicis. Posterior Annular Ligament. — (a) Attachments; — Internally; styloid process of ulna, cuneiform and pisiform bones. Externally; outer margin of radius and elevated ridge on its posterior surface. Superiorly; continuous with deep fascia of forearm, (b) Tendons passing beneath posterior annular ligament (in six compartments, from without inward) ; — (1) extensor ossis metacarpi pollicis and extensor brevis pollicis; (2) extensor carpi radialis longior and brevior; (3) extensor longus pollicis; (4) extensor communis digitorum and extensor indicis; (5) extensor minimi digiti; (6) extensor carpi ulnaris. Synovial Sacs. — Two synovial sacs lie beneath the anterior annular ligament, one for the flexor sublimis digitorum and flexor profundus digitorum, and one for the flexor longus pollicis. Both extend upward for 3 to 4 cm. (ij to ij inches) above the anterior annular ligament. That for the flexor longus pollicis extends downward to last phalanx of thumb. That for the flexor tendons of fingers divides into four processes; the one for the little finger generally extending to base of last phalanx; — those for index, middle, and ring fingers ending about middle of the metacarpals — and are thus separated by about 1.3 cm. (J inch) from the great synovial sac. Thus there is an open channel from the ends of the thumb and little fingers to a point 3 or 4 cm. (1 J to 1 ^ inches) above the anterior annular ligament. Muscles and Tendons. — (i) Of palmar aspect : — (a) Superficial Muscles from Forearm; — Flexor carpi radialis; palmaris longus; flexor carpi ulnaris; flexor sublimis digitorum. (b) Deep Muscles from Forearm; — Flexor profundus digitorum; flexor longus pollicis. (c) Short, small Muscles of Thumb; — Abductor pollicis; opponens pollicis (flexor ossis metacarpi pollicis); flexor brevis pollicis; adductor obliquus pollicis; adductor trans- versa pollicis. (d) Short, small Muscles of Little Finger; — palmaris brevis; abductor minimi digiti; flexor brevis minimi digiti; opponens minimi digiti (flexor ossis metacarpi minimi digiti). (e) Short Central Muscles of Hand; — four lumbricals; three palmar interossei. (2) Of dorsal aspect :— (a) Superficial Muscles from Forearm; — Extensor communis digitorum; extensor 33% AMPUTATIONS. minimi digiti; extensor carpi ulnaris. (b) Deep Muscles from Forearm;— Extensor ossis metacarpi pollicis; extensor brevis pollicis (extensor primi internodii pollicis); extensor longus pollicis (extensor secundi internodii pollicis); extensor indicis; extensor carpi radialis longior; extensor carpi radialis brevior. (c) Small Muscles of Dorsal Aspect of Hand; — four dorsal interossei. Attachment of Muscles to Bases of Metacarpals. — To first; extensor ossis metacarpi pollicis. To second; extensor carpi radialis longior; flexor carpi radialis. To third; extensor carpi radialis brevior. To fifth; extensor carpi ulnaris; some fibers of flexor carpi ulnaris. Arteries. — (a) Palmar supply: — (i) From Radial; — anterior radial carpal; superficialis yoke; deep arch; princeps pollicis; radialis indicis; three palmar interossei; three superior (posterior) communicating (perforating); three inferior (anterior) communicating (perforating); palmar carpal re- current. (2) From Ulnar; — anterior interosseous; anterior ulnar carpal; superficial palmar arch; four palmar digital; deep palmar (communicating); three palmar interossei (from deep arch, common to radial and ulnar) ; three superior (posterior) communicating (perforating) (also common to radial); three inferior (anterior) communicating (perforating) (also common to radial); palmar carpal recurrent (also common to radial), (b) Dorsal supply : — (i) From Radial; — radial; posterior radial carpal; dorsalis pollicis; dorsalis indicis; metacarpal (first dorsal interosseous); second and third dorsal interosseous; three superior (posterior) communicating (perforating); three inferior (anterior) communicating (perforating). (2) From Ulnar; — posterior ulnar carpal; metacarpal. Veins. — (a) Superficial; — Dorsal Venous Plexus — from which arise super- ficial radial vein, and anterior and posterior superficial ulnar veins; — Anterior Median Plexus — from which arise superficial median vein, (b) Deep; Two venae comites for each artery. Lymphatics. — Pass up the forearm from the lymphatic palmar arch, and from the dorsal plexus of lymphatics. Nerves. — (a) From Median; — Median and following branches; outer and inner palmar cutaneous; muscular branches; five digital branches; (b) From Ulnar; — Ulnar and following branches; palmar cutaneous; dorsal cutaneous; superficial palmar branch; deep palmar branch, (c) From Radial; — external branch; internal branch. SURFACE FORM AND LANDMARKS OF THE HAND. Carpal bones — two subcutaneous eminences may be felt upon the palmar aspect of the hand just below the wrist — the outer (just beneath the radial styloid process) due to the tuberosity of the scaphoid and ridge on the trape- zium (the ridge being just beneath the former) — the inner, due to the pisiform bone The unciform process of the unciform lies below and slightly internal to the pisiform. No other carpal bones are recognizable on the palmar surface — and only the cuneiform on the dorsum. Metacarpal bones — The heads of the metacarpals form the knuckles. The dorsal surface of the fifth, and the heads of all, are subcutaneous — all the other aspects of the remainder are covered by muscles or tendons. The base of the metacarpal of the thumb can be felt — and the sesamoid bones opposite the metacarpo-phalangeal joint. Skin-folds (creases) of the hand — (a) Superior fold — begins at wrist, between thenar and hypothenar eminences, and runs to the outer border SURGICAL CONSIDERATIONS IN AMPUTATIONS ABOUT HANDS. 339 of the hand at the base of the index-finger — and is formed by the adduction of the thumb, (b) Middle fold — begins at outer border of hand where supe- rior fold ends, and runs inward and slightly upward and ends at outer limit of hypothenar eminence — and is formed by the simultaneous flexion of the metacarpophalangeal joints of the first and second fingers — and about corresponds, opposite the third metacarpal, to the lower portion of the super- ficial palmar arch, (c) Inferior fold — begins opposite the cleft between the index and middle fingers and runs almost transversely to the ulnar margin of the hand, crossing the lower part of the hypothenar eminence — and is formed by the flexion of the middle, ring, and little fingers. It crosses the necks of the three inner metacarpals, and approximately indicates the upper limit of the synovial sheaths of the flexor tendons of the three outer fingers. Midway between this fold and the free margins of the webs are the meta- carpophalangeal joints. Line of carpo-meta carpal joints — from base of fifth metacarpal, to carpo- metacarpal joint-line of thumb (both of which may be recognized). The inner portion of this line is regular, the outer portion irregular. Line of metacarpophalangeal joint-line — found by flexing the first phalanges at a right angle with the metacarpals — and then prolonging the mid-lateral axis of the metacarpals forward — which lines will pass through the center of the joints. Free edges of webs of fingers, on palmar aspect, are about 2 cm. (f inch) below the metacarpophalangeal joints. Muscles — The muscles of the thenar (thumb) eminence — and .those of the hypothenar (little finger) eminence are recognizable, and also the ad- ductor transversus pollicis. The lumbricals form soft eminences behind the clefts of the fingers — and the dorsal interossei form similar soft eminences between the metacarpals. The position of many of the extensor tendons can be recognized by both sight and. touch — and some of the flexor tendons can be detected by touch while in the act of movement. Vessels — the superficial palmar arch is on a level with the lower border of the outstretched thumb, passing down from the wrist on the outer side of the pisiform. The deep palmar arch lies about 1.3 cm. (h inch) nearer the wrist, crossing the shafts of the second, third, and fourth metacarpals near their bases. GENERAL SURGICAL CONSIDERATIONS IN AMPUTATIONS ABOUT THE HANDS. A finger may be removed with a part, or the whole, of its metacarpal. In the middle metacarpals, the removal of a part, where possible, is better than a disarticulation at the carpo-metacarpal joint — as the end of the bone is not apt to get into the way, and the strength of the hand is greater. In the case of the thumb and little finger, however (which are the fingers most frequently removed, because most exposed to injury), it is best to remove the entire metacarpal — the retention of a part of the outer metacarpals being of little value, and often in the way — and its removal not weakening the hand as much as the loss of an inner one. If but a part of the metacarpal of the thumb or little finger be removed, however, the remaining portion should be beveled obliquely away from the position of most pressure. The metacarpals should be divided in their continuity by a Gigli saw It is easier, but less surgical, to divide them with bone-cutting pliers. 34° AMPUTATIONS. Fig. 321. — Amputations about Hand and Wrist: — A, Disarticulation of two inner fingers, together with their metacarpals, by curved racket incision; B, Disarticulation at wrist by equal anterior and posterior flaps; C, D, Oblique section of second and fifth metacarpals as sometimes practised in disarticulation at metacarpo-phalangeal joints of first and fourth fingers; E, Amputa- tion of part of metacarpal by oval method as sometimes performed in disarticulation at the metacarpo-phalangeal joints of the innermost and outermost fingers. Additional advantages in amputating a finger and part of its metacarpal, over disarticulating a finger and all of its metacarpal, are the following; — deep palmar arch is not exposed; synovial sacs of flexor tendons may escape, AMPUTATION OF FINGER WITH PART OF ITS METACARPAL. 341 if the bone be divided above its center; carpo-metacarpal synovial sacs are not opened; and tendons attached to bases of metacarpals are not lost. Where, in disarticulating at the carpo-metacarpal articulation, the joint- line is not easily located before incising, begin the incision as high as thought to be the articular line, and then verify the line by inserting the tip of the index-finger into the wound, while the opposite hand manipulates the special finger whose metacarpal forms part of the articulation. As the metacarpal of the thumb and, according to some, of the little finger do not communicate with the large synovial sac of the carpal bones, they can be removed in their entirety with little danger of infection — but, in un- clean cases, the removal of the second, third, and fourth metacarpals in their continuity is preferable to a disarticulation at the carpo-metacarpal line, with the likelihood of general infection. The synovial sheaths should be closed with gut-suture when cut. But where large synovial sheaths and extensive articular surfaces are opened up, drainage for twenty-four or forty-eight hours is indicated. In partial amputations of the hand, the flexor and extensor tendons should be cut long enough to be sutured into the wound, so as to retain flexion and extension of the stump. The main dangers in amputating and disarticulating about the hand are wounding of the deep palmar arch or termination of the radial, and in opening the synovial sheath of the palm or fingers. The stump should be dressed upon a splint which will immobilize the wrist. AMPUTATION OF FINGERS, IN GENERAL, WITH PARTS OF THEIR METACARPALS. Methods. — Racket Method — best for single fingers, in general, as well as for thumb and little finger; and also for two or three continguous inside fingers. Equal Dorsal and Palmar Flaps — best for the three inner fingers. Anterior Ellipse (sometimes called a Short Palmar Flap) — best for all the fingers, not including the thumb. General Indications. — Traumatism and infection. AMPUTATION OF A FINGER. IN GENERAL, WITH PART OF ITS METACARPAL, BY RACKET METHOD. Description. — The finger is removed as one continuous whole at the line of section of the metacarpal. Position. — Same as for amputation through last phalanx (page 327). Landmarks. — Outline of dorsal aspect of metacarpal; carpo-metacarpal joint; webs of fingers. Incision. — Begins over dorsum of metacarpal, a short distance above the point at which the bone is to be sawed — passes thence downward over the middle of the dorsal aspect until the neck of the metacarpal is reached — whence the median line diverges into two limbs, each limb passing down the dorso-lateral aspect of the finger to just below the junction of the web and finger — whence each limb crosses immediately in front of the digito-palmar crease to meet in the center of the palmar aspect of the finger (Fig. 320, L). 342 AMPUTATIONS. Operation.— This incision is rleepened to the bone on the line of the retracted skin. The extensor tendons are divided near the upper end of the vertical incision. The sides of the shaft of the metacarpal are carefully cleared, hugging the bone in the process. The region of the metacarpo- phalangeal joint is also freed and the flexor tendons divided near the neck of the metacarpal, while the finger is forcibly extended. The shaft of the metacarpal is further cleared up to the saw-line, the finger being held in extreme extension. The Gigli or chain saw is now passed beneath the meta- carpal, while the soft parts are held out of the way, and the bone sawed so as to bevel it from below upward and toward the dorsum. The digital arteries are divided and are to be tied. The synovial sheath of the flexor tendons should be closed with gut sutures. The wound is sutured in a single median line upon the dorsal aspect. AMPUTATION OF THUMB WITH PART OF ITS METACARPAL BY RACKET METHOD. Description — Position — Landmarks. — As for amputation of a finger with part of its metacarpal (page 341). Incision. — As in disarticulation of thumb with its entire metacarpal, by the racket method (page 345) — except that the queue of the incision only extends up to a little above the sawdine. Operation. — As for amputation of a finger with part of its metacarpal (page 341). The metacarpal should be beveled from above downward and inward. AMPUTATION OF LITTLE FINGER WITH PART OF ITS METACARPAL BY RACKET METHOD. Description — Position — Landmarks. — As for amputation of a finger with part of its metacarpal (page 341). Incision. — As in disarticulation of little finger with its entire metacarpal, by the racket method (page 344) — except that the queue of incision begins just above sectiondine of bone. Operation. — As for amputation of a finger with part of its metacarpal, by the racket method. The metacarpal should be beveled from above downward and toward the radial side. AMPUTATION OF TWO CONTIGUOUS INSIDE FINGERS WITH PART OF THEIR METACARPALS BY RACKET METHOD. Similar, practically, to the disarticulation of two contiguous inside fingers with their entire metacarpals, by the racket method (page 346). AMPUTATION OF THREE INSIDE FINGERS WITH PARTS OF THEIR METACARPALS BY RACKET METHOD. See the disarticulation of the three innermost fingers with their entire metacarpals by the racket method (page 346). DISARTICULATION OF FINGERS WITH ENTIRE METACARPALS. 343 AMPUTATION OF THREE INNERMOST FINGERS WITH PARTS OF THEIR METACARPALS BY EQUAL DORSAL AND PALMAR FLAPS. See the disarticulation of the three innermost fingers with their entire metacarpals, by the method of equal dorsal and palmar flaps (page 346) . AMPUTATION OF ALL THE FINGERS (EXCLUDING THE THUMB), WITH PARTS OF THEIR METACARPALS, BY ANTERIOR ELLIPSE. See the corresponding disarticulation of all the fingers, exclusive of the thumb, with their entire metacarpals, bv an anterior ellipse (or short palmar flap, as it is sometimes called) (page 348). Fig. 322. — Showing the Relations or the Various Metacarpal to the Correspond" tng Carpal Bones, as Guides in Disarticulating the Metacarpals from the Carpals and the Adjacent Metacarpals. DISARTICULATION OF FINGERS, IN GENERAL, WITH THEIR ENTIRE METACARPALS. Methods. — Racket Method — best for the fingers in general, including thumb, index, and little fingers — and also used for the two or three inside fingers. Equal Dorsal and Palmar Flaps — best for three innermost fingers. Anterior Ellipse (Short Palmar Flap) — best for all the fingers, exclusive of thumb — and also best for all the fingers including thumb. Palmar Flaps — ■ sometimes used for the thumb, but inferior to the racket. Circular Method — sometimes used for all the fingers, with or without the thumb. Comment. — Preservation of the carpus is desirable, especially if the flexor and extensor tendons are so sutured into the wound that considerable range of movement may be secured for the stump wielding the artificial limb. Fig. 322 shows the intercarpal and carpo-metacarpal joints. 344 AMPUTATIONS. DISARTICULATION OF AN INNER FINGER WITH ITS METACARPAL BY RACKET INCISION. Description. — The finger is removed as one continuous whole at the carpometacarpal articulation. Position. — As for amputation through the last phalanx (page 327). Landmarks. — Outline of dorsal aspect of carpo-metacarpal articulation, and metacarpal bone. Incision — Begins just above the carpo-metacarpal joint — passes down the median dorsal aspect of the metacarpal until its neck is reached — thence diverges into two limbs, each limb running over the dorso-lateral aspect of the finger to just below the junction of the web and finger — whence each limb crosses the digito-palmar crease to meet in the center of the palmar aspect of the finger. If necessary for the purpose of aiding disarticulation at the carpo-metacarpal joint, a short transverse incision may be made at a right angle to the upper end of the queue (Fig. 320, K). Operation. — This incision is now deepened on a line of the retracted skin and fascia. The shaft of the metacarpal and the metacarpophalangeal joint are carefully cleared, hugging the bones as closely as possible, while an assistant keeps the finger in the position of extreme extension. The extensor tendons are divided as near the upper limit of the queue as possible — the flexor tendons near the neck of the metacarpal. The sides of the metacarpal are now bared up toward the carpo-metacarpal articulation, using especial care in the palmar region. The ligaments of the intermetacarpal joints and carpo-metacarpal joints are divided by carefully thrusting a knife between the sides of the bases of the metacarpals and between the metacarpals and the carpal bones, working from the dorsum of the hand. The disarticulation is completed by forcibly turning back the finger upon the dorsum of the hand, completing, with the knife, the division of any undivided ligaments, insertions of tendons, or palmar structures. The synovial sheaths of the flexor tendons should be sutured with catgut, if possible. Tie the two digital arteries — and suture the wound in a single median line upon its dorsal aspect. DISARTICULATION OF INDEX-FINGER WITH ITS METACARPAL BY RACKET INCISION. Description. — The steps of this operation are practically the same as for the corresponding operation upon an inner finger. The incision is in the mid-dorsal line. The addition of a short transverse incision at a right angle to the upper end of the queue is especially advisable here, owing to the width of the base of the second metacarpal. The outer (radial) of the diverging limbs below should follow the dorsal aspect a little further down before sweeping over the lateral aspect than does the inner (ulnar) limb, in order to bring the scar more out of the way of pressure. The index should be extended and abducted in clearing and disarticulating. Tie the digital, radialis indicis, and dorsalis indicis arteries — and suture the wound in a ver- tical dorsal line. DISARTICULATION OF LITTLE FINGER WITH ITS METACARPAL BY RACKET INCISION. Description. — The steps of the operation are essentially similar to those for the removal of an inner finger with its metacarpal by the racket incision. It is better to place the incision in the mid-dorsal aspect than toward the DISARTICULATION OF THUMB WITH ITS METACARPAL. 345 inner (ulnar) side of the metacarpal, as objects less easily press such a scar. At the upper extremity of the queue a short transverse incision may be added, not crossing the upper end of the queue (as in the case of the inner fingers), but running from the upper end of the queue at a right angle toward the ulnar aspect of the hand, over the carpo-metacarpal joint — to allow of readier disarticulation. The inner (ulnar) of the diverging limbs below should follow the dorsal aspect a little further down before sweeping over the lateral border than does the outer (radial) limb — in order to bring the scar more out of the way of pressure. The little finger should be extended and ab- ducted (from the median line of the hand) in clearing and disarticulation. Carefully close the large synovial sac of the little finger, if opened. Preserve the hypothenar muscles as far as possible and suture into the wound. Suture the wound in a single dorsal line (Fig. 320, J). DISARTICULATION OF THUMB WITH ITS METACARPAL BY RACKET INCISIOX. Description. — Removal of the thumb, together with its metacarpal, at the carpo-metacarpal joint. Position. — Same as for the fingers, except that the hand is held midway between pronation and supination. Landmarks. — Outline of the dorsal aspect of the metacarpal, and the carpo-metacarpal joint. Incision. — Begins just above the carpo-metacarpal joint-line, in the mid-dorsal aspect of the metacarpal — passing into the "snuff-box," if at all, with great care and, at first, very superficially, on account of the radial artery. The incision then passes down the center of the dorsum of the thumb to the neck of the metacarpal — and here divides into the two limbs of an oval, which part to encircle the head of the metacarpal, crossing the palmar aspect of the thumb on a level with the free edge of the web — the outer (radial) of the diverging limbs following the dorsal aspect a little further down before sweep- ing over the lateral aspect than does the inner (ulnar) limb (Fig. 320, N). Operation. — This incision is deepened on the line of the retracted skin and fascia. The extensor tendons of the first and second phalanges are cut as long as possible, so as to be sutured into the wound. The dorsum and sides of the metacarpal are cleared of soft parts, hugging the bone. The thumb is extended and abducted and the muscles attached to the base of the first phalanx are divided near the sesamoid bones, preserving the thenar muscles as far as possible. The palmar aspect of the metacarpal is cleared while an assistant rotates the thumb from side to side, working as near the bone as possible. The flexor longus pollicis tendon is divided low down, so that it may be sutured into the wound. Disarticulation is accomplished by severing the binding ligaments and the extensor ossis metacarpi pollicis, while the thumb is flexed into the palm — opening the joint from the dorsum, the thumb being then rotated in different directions to complete the dis- articulation. Suture the sheath of the flexor tendon. Tie the arteria princeps pollicis, or its two branches, and the dorsalis pollicis. Quilt the muscles, suturing the flexor, extensor, and thenar tendons and muscles into the wound. The cicatrix will run in a dorsal median line. 346 AMPUTATIONS. DISARTICULATION OF TWO CONTIGUOUS INSIDE FINGERS WITH THEIR METACARPALS BY RACKET INCISION. Description. — The operation is the same, in principle, as that for the removal of a single finger and its metacarpal. A vertical incision begins just above the carpo-metacarpal joint-line and between the bases of the two contiguous metacarpals — passes down the back of the hand midway between the two metacarpals for about one-half of their length — then divides into the two limbs of an oval, or racket — the radial limb passing to the radial side of the outer of the two fingers to be removed — the ulnar limb to the ulnar side of the inner of the two fingers to be removed — to the junction of the fingers and webs — thence both limbs cross and meet beneath the fingers in the digito-palmar crease. The incision is deepened — the metacarpals cleared — the tendons cut long — disarticulation accomplished — and the opera- tion completed just as in the disarticulation of a single finger and its meta- carpal. The flexor and extensor tendons are to be sutured into the wound. (Fig. 320, M.) DISARTICULATION OF THREE INSIDE FINGERS WITH THEIR META- CARPALS BY RACKET INCISION. Description. — Same, in the main, as the disarticulation of any two contiguous inside fingers with their metacarpals — except that the vertical incision begins just above the carpo-metacarpal joint line, over the center of the base of the central one of the three metacarpals — passes down this metacarpal for about one-third of its length — and thence diverges, the radial limb to the radial side of the outer finger, and the ulnar limb to the ulnar side of the inner finger — both limbs passing to the junction of the fingers with the webs — and thence crossing and meeting in the digito-palmar crease beneath the central finger. The operation is completed as in the last — three fingers and their metacarpals being removed instead of two. DISARTICULATION OF THREE INNERMOST FINGERS WITH THEIR METACARPALS BY EQUAL DORSAL AND PALMAR FLAPS. Description. — Corresponding incisions are made upon palmar and dorsal aspects of the hand, furnishing symmetrical flaps. Position. — As in operations upon the fingers (page 327). Landmarks. — Carpo-metacarpal articulations of third, fourth, and fifth metacarpals; middle palmar crease. Incision. — (1) Palmar incision — begins just below the base of the fifth metacarpal — passes downward and outward across the palm, parallel with but just below the middle palmar crease, until opposite the center of the ring-finger or just beyond — and is thence directed to the junction of the outer side of the middle finger and web. (2) Dorsal incision — corre- sponds with the palmar incision (Fig. 323, A). Operation. — The above incisions are deepened on the line of the retracted skin and fascia. The metacarpal bones are bared to their joint-lines, which is more easilv done in the case of the fourth and fifth, the third being exposed DISARTICULATIONS OF FINGERS WITH THEIR METACARPALS. 347 by upward and outward retraction of the soft parts. The nerves are cut as near the line of disarticulation as possible. The flexor and extensor tendons are cut long, so as to be sutured into the wound. Care is taken not to wound the deep arch. Tie the interosseous branches of the deep arch, and the palmar digital branches of the superficial arch, or the arch itself, if wounded. Suture the synovial sheaths where opened. The muscles of the hypothenar eminence are left in the palmar flap as far as possible and are quilted to the fascia of the dorsal region, where there are no muscles. The Fig. 323.— Amputations about the Hand : — A, Disarticulation of three inner fingers, with their metacarpals, by equal dorsal and palmar flaps; B. Disarticulation of all the fingers, except thumb, with their metacarpals, by anterior ellipse; C, Disarticulation at wrist-joint, by circular method. (Dorsal view.) flexor and extensor tendons are also sutured into the wound. The dorsal and palmar flaps are united by suture extending along the ulnar side of the hand. Comment. — In the unusual cases where this operation is done, injury has generally been the cause, and its extent upon the dorsum and palm will determine the outline of the coverings. Where both are equally involved the above coverings will have to be taken — but if the predominant covering could be gotten from the palm, so as to make a larger palmar and smaller dorsal flap, the scar would lie on the dorsal aspect and be out of the way of pressure, which would be preferable. 348 AMPUTATIONS. DISARTICULATION OF ALL FINGERS, EXCLUDING THUMB, WITH THEIR METACARPALS PA' ANTERIOR ELLIPSE. Description. — This is, practically, a palmar covering, whose convex anterior border fits into the concave wound on the dorsum of the hand. It is sometimes called the short palmar flap method. Position. — As in the amputations upon the fingers in general (page 327). Landmarks. — Base of fifth metacarpal (marking the point at which the ellipse crosses the ulnar border of the hand); point midway between the central crease of the hand and the level of the outstretched thumb (marking the point at which the ellipse crosses the radial border of the hand); the carpometacarpal joint-line. Incisions. — Palmar incision — passes between the two above points, with a downward convexity, whose lowest part reaches below the middle of the metacarpals. Dorsal incision — also passes between the same two points, with an upward convexity, whose highest part corresponds with the bases of the two inner metacarpals (Fig. 323, B). Operation. — These incisions are deepened to the bone. The flexor and extensor tendons are cut long. The soft parts are cleared up to the carpo-metacarpal joint-line — the metacarpals are disarticulated from the carpals, and the second metacarpal from the first metacarpal, cutting the dorsal ligaments by flexing and the palmar ligaments by extending the hand. Tie the palmar digital, palmar interosseous, dorsalis indicis, radialis indicis, and palmar arches, if severed. Close the flexor sheaths — suture the flexor and extensor tendons into the wound — and suture the convex palmar flap to the concave dorsal wound. DISARTICULATION OF FINGERS AND THUMB AT CARPO-META- CARPAL ARTICULATION BY PALMAR FLAP. Description. — Same, in principle, as the disarticulation of the hand at the wrist-joint (page 352) — except that the upper limits of the flap extend only to the ulnar margin of the unciform-metacarpal articulation, on the one side, and the radial margin of the trapezio-metacarpal articulation, on the other side — the lower limit crossing the necks of the metacarpals. SURGICAL ANATOMY OF THE WRIST- JOINT. Bones. — Radius; ulna; first row of carpal bones (scaphoid, semilunar, cuneiform, pisiform). Ligaments. — Anterior radiocarpal; posterior radio-carpal; external lateral; internal lateral; and synovial membrane. Movements. — Flexion; — accomplished by flexor carpi radialis; flexor carpi ulnaris; palmaris longus. Extension; — by extensor carpi radialis longior; extensor carpi radialis brevior; extensor carpi ulnaris. Adduction; — by flexor carpi ulnaris; extensor carpi ulnaris. Abduction; — by extensor ossis metacarpi pollicis; extensores brevior et longior pollicis; extensores carpi radialis longior et brevior; flexor carpi radialis. Muscles and Tendons in Neighborhood of Wrist-joint.— (a) Ante- riorly; — flexor carpi radialis; palmaris longus; flexor carpi ulnaris; flexor SURFACE FORM AND LANDMARKS OF THE WRIST-JOINT. 349 sublimis digitorum; tlcxor profundus digitorum; flexor longus pollicis. (b) Posteriorly; — extensores carpi radialis longior et brevior; extensor communis digitorum; extensor indicis; extensor minimi digiti; extensor carpi ulnaris. (c) Radial Aspect; — supinator longus; extensor ossis metacarpi pollicis; extensor brevis (primi internodii) pollicis; extensor longus (secundi internodii) pollicis. Arteries in Neighborhood of Wrist-joint. — Radial, with its anterior carpal, superficialis volae, posterior carpal and metacarpal (first dorsal inter- osseous). Ulnar, with its anterior carpal, posterior carpal, carpal branch of anterior interosseous, posterior termination of anterior interosseous. Carpal recurrent branch from deep arch. Veins in Neighborhood of Wrist-joint. — Superficial — anterior ulnar; posterior ulnar; radial; median. Deep — two vena 1 comites accompany each of the above arteries. Nerves in Neighborhood of Wrist-joint. — Superficial — anterior and posterior branches of musculocutaneous; anterior and posterior branches of internal cutaneous; palmar cutaneous branch of median; palmar cutaneous branch of ulnar; cutaneous branch of ulnar communicating with anterior branch of internal cutaneous (frequently absent) ; dorsal cutaneous branch of ulnar; palmar cutaneous branch of radial; dorsal division of radial. Deep; — median; ulnar; termination of interosseous. SURFACE FORM AND LANDMARKS OF THE WRIST-JOINT. Articulation of the wrist-joint is on a level with the apex of the styloid process of the ulna, which is the key to the joint. To find the joint-line of the wrist, draw a straight line connecting the radial and ulnar styloid processes — then draw a curved line between the same points, with the highest part of the convexity 1.3 cm. (J inch) above the straight line — this curved line will represent the dome-shaped articular line. The ulnar styloid process is more distinct in pronation — that of radial in supination. Two or three skin-folds generally cross the palmar surface of the wrist transversely — the lowest fairly represents the upper border of the anterior annular ligament — and is about 1.3 to 2 cm. (^ to f inch) below the arch of the wrist-joint. All the muscles mentioned above under Surgical Anatomy can generally be felt and recognized about the wrist-joint — except the flexor profundus digitorum and flexor longus pollicis, of the anterior group; the extensor carpi ulnaris, of the posterior group; and the supinator longus, of the radial group. Bony prominences of the tubercle of the scaphoid and ridge of the trape- zium are generally to be felt on the anterior aspect of the radial side of the wrist — and those of the pisiform and unciform process of the unciform, on the ulnar side. The lower end of the diaphysis of the ulna just comes to the radio-ulnar joint. The lower end of the diaphysis of the radius comes within the synovial membrane. The tendon of the extensor longus (secundi internodii) pollicis marks the center of the lower end of the radius — and indicates the interval between the scaphoid and semilunar. The ulnar artery, with the ulnar nerve to the ulnar side, lies on the anterior annular ligament, to the radial side of the pisiform and to the ulnar side of the hook of the unciform (in the groove between them). The deep branch of the ulnar artery arises directly below the pisiform. 350 AMPUTATIONS. The radial artery passes under the extensor tendons of the thumb, upon the external lateral ligament, winding over the outer side of the carpus from a point just below and internal to the styloid process of the radius to the base of the first interosseous space. The superficial palmar arch is on a line with the lower border of the outstretched thumb — and the deep arch is 1.3 cm. (h inch) higher. GENERAL SURGICAL CONSIDERATIONS IN DISARTICULATING AT THE WRIST-JOINT. Disarticulation at the wrist-joint is preferable to amputation through the forearm, as pronation and supination are usually retained, and the stump is better adapted to an artificial limb. Avoid injuring the radio-ulnar articulation — which is adjacent to, but not a part of, the wrist-joint. The styloid processes of the radius and ulna should not be removed, especially that of the radius, owing to the attachment of the supinator longus. Disarticulation of the joint is more easily done from the dorsum. The pisiform bone is often unconsciously removed with the flap, and it is convenient to so remove it and subsequently to dissect it out. The best covering for the joint is from the palm, but the nature of the condition for which the operation is done will generally determine from which aspect the covering can be gotten. Care must be exercised to cover the prominent radial styloid process. In approximating the thick palmar to the thin dorsal skin, the sutures are to be securely tied and left amply long. Drainage is indicated for twenty-four or thirty-six hours. The stump should be placed upon a splint which will steady the part and prevent pronation and supination, in a position midway between pronation and supination. The lower epiphyses of the radius and ulna join the bones about the twentieth year. DISARTICULATION AT THE WRIST- JOINT, IN GENERAL. Best Methods. — Anterior Ellipse; Palmar Flap; External lateral, or radial, Flap (Dubrueil's Method). Other Methods. — Modified Circular; Circular; Equal Palmar and Dorsal Flaps; Dorsal Flap. Comment. — Anterior ellipse method forms the best covering, and amounts to a palmar flap. Palmar flap — rather bulky and unyielding and less ad- justable. External flap — a good substantial covering, and especially adapted to cases in which the palmar covering is not available. Circular method — forms a scanty covering. Dorsal flap — warrantable when the palmar and external coverings are unavailable, but consists only of skin and tendons. General Indications. — Bad crushes of hand; malignant disease; chronic disease of bones or joints of hand DISARTICULATION AT THE WRIST-JOINT. DISARTICULATION AT THE WRIST- JOINT BY ANTERIOR ELLIPSE. Description. — The covering raised is, practically, an anterior flap. The idea of the ellipse is appreciated after marking the outline, as given below, and then viewing it from the radial or ulnar aspect of the hand. Fig. 324. — Disarticulation ai the Wrist-joint by the Anterior Elliptical Method. (Palmar view.) Fig. 325.— Disarticulation at the Wrist-joint by the Palmar Flap Method. (Palmar view.) Position. — Patient on back, forearm abducted horizontally; hand pro- nated or supinated, as indicated by the stage of the operation. Surgeon sits or stands, facing the patient's hand. An assistant steadies the limb from above, and holds the parts out of the way. Landmarks. — Line of the wrist- joint; pisiform; base of fifth metacarpal; carpo-metacarpal joint of the thumb. Incision. — Highest point of the ellipse is upon the dorsum, 1.3 cm. (| inch) below the line of the wrist-joint, and on a line with the middle finger. Lowest point of the ellipse is upon the palm, 6.3 cm. {t\ inches) below the line of the wrist-joint, and on a line with the middle finger. The inner portion of the ellipse crosses the ulnar border of the hand between the pisiform bone and base of the fifth metacarpal. The outer portion of the ellipse 352 AMPUTATIONS. crosses the radial border of the hand at the carpo-metacarpal joint-line of the thumb. The entire incision has, therefore, a downward convexity upon the palm and an upward convexity upon the dorsum, and passes through the four above-mentioned points (Fig. 324, A). Operation. — Supinating the hand while incising the palm, and pronating it while making the dorsal incisions, this entire ellipse, which has been made through the skin and fascia at first, is now deepened throughout. The dorsal integuments are first dissected to the joint-line. The hand is flexed and the extensor tendons, posterior ligament, and lateral ligaments are cut and the joint opened — and then the anterior ligaments. First one and then the other lateral border of the hand is made to present and the lateral parts of the ellipse carried to the bones. The knife is then carried between the flexor tendons and the carpus, from above and within, and made to clear out the hollow of the carpus in the act of cutting its way obliquely from within downward and outward, to the margin of the palmar incision through the skin — and the hand thus severed from the arm. All loose tendons and nerves are to be cut. The following arteries are to be tied; radial, ulnar (below the deep branch), deep branch of the ulnar, superficialis volae. The deep palmar arch and part of the superficial palmar arch are removed with the hand. The convex palmar flap is sutured into the concave wound at the back of the wrist. Comment. — The palmar covering can be entirely freed up to the joint- line before disarticulating. DISARTICULATION AT THE WRIST BY PALMAR FLAP. Description. — The flap is U-shaped, and raised entirely from the palm. Position. — As in the disarticulation by an anterior ellipse (page 304). Landmarks. — Styloid process of radius; styloid process of ulna; middle of metacarpus. Incision. — Palmar incision — radial limb of the U begins 1.3 cm. (^ inch) below the radial styloid process and is directed downward along the radial border of the index. Ulnar limb of the U begins 1.3 cm. (J? inch) below the ulnar styloid process and is directed downward along the ulnar border of the little finger. These limbs are bluntly rounded at their lower ends and pass transversely toward each other so as to meet just above the center of the metacarpus. Dorsal incision — crosses the carpus in a straight line, or, better, with slightly downward convexity, between the two upper ends of the palmar incision (Fig. 325). Operation. — With the hand in supination and extension, the palmar incision is deepened to the flexor tendons, the thenar and hypothenar muscles being cut through to that extent — and the palmar flap then dissected up to the joint-line, raising the flap from the bony prominences in the palm. With the hand now in pronation and the skin of the wrist drawn upward, the dorsal incision is deepened and the integuments dissected up to the joint-line, when the extensor tendons, posterior ligament, and lateral ligaments are severed and disarticulation accomplished. The flexor tendons and surrounding tis- sues on the palmar surface are now severed, while on the stretch, by dividing the anterior ligament from within the disarticulated joint and then cutting the flexor tendons from the dorsal toward the palmar aspect, on a line with SURGICAL ANATOMY OF THE FOREARM. 353 the retracted palmar (lap. The same arteries are to be tied as in the ellip- tical method, the deep arch and loops of the superficial arch coming away with the hand. DISARTICULATION AT THE WRIST- JOINT BY EXTERNAL LATERAL, OR RADIAL FLAP — DUBRUEIL'S METHOD. Description. — A saddle-shaped flap of skin and muscles is raised from the metacarpal region of the thumb, and approximated to the disarticulated ends of the radius and ulna. Position. — As in disarticulation by the elliptical method (page 351). Landmarks. — Wrist-joint; first metacarpal. Incision. — Flap-incision — begins on back of wrist, about 6 mm. (j inch) below the wrist-joint line, and at the junction of the outer and middle thirds of that line — passes thence downward upon the dorsal aspect of the thumb — thence rounds outward to cross the first metacarpal transversely about its middle (remaining, up to the point of rounding outward, as far from the outer border of the hand as at the beginning). The incision now passes upward correspondingly on the inner aspect of the thumb, following the inner part of the thenar eminence to a point about 6 mm. (| inch) below the wrist-joint line, at the junction of the outer and middle thirds of that line on the palmar surface. Disarticulating-incision — the two upper ends of this flap are connected by a transverse incision passing directly around the inner aspect of the wrist-joint (Fig, 320, P, P). Operation. — The thenar incision, forming the flap, is deepened — the soft parts are dissected from the metacarpal, and as much of the thenar muscles as possible is taken. The soft parts upon the inner aspect of the wrist are divided to the bone by the circular incision on a level with the base of the flap. Disarticulation is accomplished from the dorsal and inner aspect, toward the palmar and outer. The following arteries are to be tied: superficial and deep palmar arches, dorsalis and radialis indicis and ulnar. The tendons and nerves are treated as in the preceding operations upon the wrist. The external or thenar flap is now brought transversely across the articular ends of the radius and ulna, and sutured to the circularly divided parts. SURGICAL ANATOMY OF THE FOREARM. Bones. — Radius; ulna. Articulations and Ligaments. — (a) Superior Radio-ulnar Articulation; — orbicular ligament; synovial membrane, (b) Middle Radio-ulnar Articu- lation; — oblique (round) ligament; interosseous membrane. (c) Inferior Radio-ulnar Articulation; — anterior radio-ulnar ligament; posterior radio- ulnar ligament; interarticular (triangular) fibro-cartilage; synovial mem- brane, (d) Elbow-joint (page 359). (e) Wrist-joint (page 348). Muscles of the Forearm. — (a) Anterior radio-ulnar region : — (i) More Superficial Muscles; — pronator radii teres; flexor carpi radialis; palmaris longus; flexor carpi ulnaris; flexor sublimis digitorum. (2) Deeper Muscles; — flexor profundus digitorum; flexor longus pollicis; pronator quadratus. (b) Radial region: — supinator longus; extensor carpi radialis longior; ex- tensor carpi radialis brevior. (c) Posterior radio-ulnar region:— (1) 2 3 354 AMPUTATIONS. More Superficial Muscles; — extensor communis digitorum; extensor minimi digiti; extensor carpi ulnaris; anconeus. (2) Deeper Muscles; — supinator brevis; extensor ossis metacarpi pollicis; extensor brevis (primi internodii) pollicis; extensor longus (secundi internodii) pollicis; extensor indicis. Arteries of the Forearm. — Radial, with radial recurrent; muscular; anterior carpal; superficialis volar, posterior carpal branches. Ulnar, with anterior ulnar recurrent; posterior ulnar recurrent; common interosseous; anterior interosseous; posterior interosseous; muscular; anterior carpal; posterior carpal branches. Veins of Forearm. — Superficial — median; median cephalic; median basilic; deep median; radial cephalic; cephalic; anterior ulnar; posterior ulnar; common ulnar; basilic. Deep — two venae comites accompanying each of above arteries. Nerves of Forearm. — Superficial; — musculocutaneous; internal cutane- ous; external cutaneous branch of musculospiral; cutaneous branch of ulnar; dorsal cutaneous branch of ulnar; cutaneous branches of radial. Deep; — ulnar and its muscular branches; median and its muscular branches; muscular branches of musculospiral; radial branch of musculospiral; posterior inter- osseous branch of musculospiral. The cross-sections of the forearm are shown in Figs. 32, 34, and 327. SURFACE FORM AND LANDMARKS OF THE FOREARM. Olecranon and posterior border of upper part of ulna are subcutaneous — and the entire shaft is to be felt down to the styloid process, passing from the center of the forearm above to the ulnar side of the wrist below, and lying between the flexor and extensor carpi ulnaris. The ulnar styloid process is best felt with the forearm midway between flexion and extension, being con- tinuous with the posterior subcutaneous border of the bone. Head of the radius is felt just below and a little in front of the posterior surface of the external condyle, revolving in the orbicular ligament and lesser sigmoid cavity — marked by a dimple in the skin posteriorly, best seen when the arm is extended. The lower half of the radius can be outlined, though not subcutaneous — the outer aspect of the lower part alone being subcutaneous, and ending in the radial styloid process. The radius is deeply covered above and superficially covered below. Opposite a point in the forearm where one bone is most slender, the opposite bone is most substantial — both being about equal in the middle. The radius and ulna are everywhere nearer the posterior than anterior aspect of the forearm, and increasingly so above. They are nearest each other in complete pronation and furthest in complete supination. Flexor and pronator muscles form the muscular elevation upon the inner side of the elbow and forearm — the extensor and supinator muscles forming a corresponding elevation upon the outer and posterior side of the elbow and forearm. These two groups diverge above toward the condyles of the humerus and converge below toward the center of the forearm — the supinator longus forming the outer boundary and the pronator radii teres the inner boundary of the triangular space at the bend of the elbow. Of the muscles of the internal group, the pronator radii teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris, alone influence surface form, the remainder being unrecognizable. The external group of muscles divides into two longitudinal SURGICAL CONSIDERATIONS IN AMPUTATIONS ABOUT FOREARM. 355 eminences, diverging from each other, with a triangular interval between them: — the outer, consisting of the supinator longus, extensor carpi radialis longior and brevis, descending from the outer condyloid ridge toward the radial styloid process; — the other, more posterior, consisting of the extensor communis digitorum, extensor minimi digiti, extensor carpi ulnaris, descend- ing from the external condyle, separated above from the anconeus by a furrow, and below from the pronator-flexor mass by the ulnar furrow. In the tri- angular interval between these two groups the extensor ossis metacarpi pollicis, extensor brevis pollicis, extensor longus pollicis, and extensor indicis pass downward. The anconeus forms a slight prominence external to the subcutaneous posterior surface of the olecranon. In the muscular, the transverse is much greater than the antero-posterior diameter of the forearm — and the downward tapering is marked. In the non-muscular, the forearm is more rounded and the tapering is less. Above, the muscles are found chiefly at the sides and in front; — below, more equally along the anterior and posterior aspects — hence flap amputations are more adapted to the upper and circular amputations to the lower part of the forearm. The three chief pronators of the forearm are, the pronator radii teres, pronator quadratus, and flexor carpi radialis. The three chief supinators are, the supinator longus, supinator brevis, and biceps. GENERAL SURGICAL CONSIDERATIONS IN AMPUTATIONS ABOUT THE FOREARM. For the purposes of amputation, the forearm may be divided into two natural regions, a lower one-third and an upper two-thirds — the former being characterized by an almost even contour of similar dimensions through- out — the latter, especially in the muscular, by its rapidly increasing measure- ments up to from 2.5 to 5 cm. (1 to 2 inches) below the elbow, and with a slight decrease thence to the elbow-joint. Therefore, on this account, and because of the grouping of the muscles, amputation-methods are described as applicable to "the lower third" and "the upper two-thirds." (In this connection, see the last paragraph from the bottom, in the above section.) The general type of amputation most suitable for the lower third of the forearm is the circular method — and the general type most suitable for the upper two-thirds is the flap method. Saving of the smallest part of the forearm, with its movement, is preferable to disarticulation at the elbow. If possible, the bones should be sawed below the insertion of the pronator radii teres, otherwise the radius will become supinated and rotatory move- ments lost. Owing to the tendency of the bones to project through the angles of the flaps, the flaps at their bases and their lower ends should be made fully long. In cutting by transfixion the interosseous membrane is apt to be pierced. A terminal cicatrix is here desirable, as best adapted to an artificial limb. The stump should be dressed with the forearm midway between pronation and supination, and the elbow steadied by a right-angled splint. 356 AMPUTATIONS. AMPUTATION OF THE FOREARM, IN GENERAL. Best Methods. — Modified Circular — for the lower third. Equal Anterior and Posterior Flaps— for the upper two-thirds Other Methods. — Long Anterior Flap — where the posterior tissues are defi- cient. Long Posterior Flap — where the anterior tissues are deficient. Long An- terior and Short Posterior Flap. Rec- tangular Flaps (Teale's method). Ex- ternal Lateral Flap — where the internal tissues are deficient. Equilateral Skin- flaps. Circular Skin-flap. Circular. General Indications. — Injury; tuber- cular disease of wrist; malignancy. AMPUTATION OF LOWER THIRD OF FOREARM BY MODIFIED CIRCULAR METHOD. Description. — Two short flaps of skin and fascia are turned back and the muscles are then circularly divided at the level of the retracted skin-and-fascia flaps. Position. — Patient supine, near edge of table, with upper limb abducted to a right angle — and held by an assistant in supination during anterior incisions, and in pronation, or vertically, during pos- terior incisions. Surgeon to outer side of right limbs and inner side of left. Landmarks. — Saw-line. Incision. — The total covering is to be i^ diameters of the forearm at the saw- line. The anterior and posterior aspects will each furnish three-fourths of a diameter. One-half of this three-fourths diameter length will be of skin and fascia alone, on each side — the remaining half of skin, fascia, and muscle. Therefore a point below the saw-line equal to three-fourths of a diameter at the saw-line will mark the lowest limit from which the covering is to be provided. Two small flaps are incised, each having a base equal to a half-circumference, and a length equal to half (the lower half) of the distance between the saw-line and the lowest limit of the skin incision. These flaps will be bluntly rounded at their lower ends (Fig. 326, A). Operation. — Dissect up the integumentary flaps half-way to the saw- line — retract them, and, on a level with the retracted flaps, circularly divide the muscles to the bone. This circular incision also divides the periosteum and interosseous membrane. The muscles and periosteum are then retracted to the saw-line — and the bones divided, completing the section of the more movable radius first. Tie the radial, ulnar, anterior and posterior inter- osseous arteries. Stitch the musculo-periosteal covering over the bones. Fig. 326. — Amputations through the Forearm and at the Elbow: — ■ A, Through lower part of forearm by modified circular; B, Through upper forearm by equal anterior and posterior flaps; C, Disarticulation at elbow-joint by oblique circular method. AMPUTATION OF LOWER THIRD OF FOREARM. 357 Quilt the muscles or tendons of the anterior to those of the posterior aspect of the forearm if possible. Suture the integumentary coverings in a straight line antero-posteriorly. Comment. — The preponderance of tendinous over muscular tissues here makes the infundibular variety of the modified circular difficult or impossible. Fig. 327. — Cross-section of the Middle of the Right Forearm: — A, Flexor carpi radialis; B, Median nerve; C, Supinator longus; D, Radial artery, veins, and nerve; E, Flexor longus pollicis; F, Extensor carpi radialis; G, Extensor ossis metacarpi pollicis; H, Flexor sub- limis digitorum; I, Flexor carpi ulnaris; J, Ulnar artery, veins, and nerve; K, Flexor profundus digitorum; L, Anterior interosseous vessels; M, Extensor indicis; X, Extensor carpi ulnaris; O, Extensor minimi digiti; P, Extensor communis digitorum. (The crods-section modified from Braune.) AMPUTATION OF LOWER THIRD OF FOREARM BY CIRCULAR METHOD (CUFF VARIETY). Description. — The cuff variety of the circular amputation is here done (see under Comment). A cuff of skin, circularly cut, is turned back — and the muscles circularly divided on a level with the reflected skin — the ends of the bones being covered by skin and fascia alone. Position. — As in the last operation. Landmarks. — Saw- line. Incision. — Circular cut, placed three-fourths of a diameter (at the saw- line) below the line of bone-section — thus making a total covering of i 1 diameters, as each side may be regarded as furnishing one-half of the cover- ing. (For principle, see Fig. 328, A.) Operation. — This circular incision divides the skin and fascia, which are then dissected up, the forearm being vertical while the posterior dissection is done. This dissection and turning back of the flap is continued up to a distance below the saw-line which will leave space to provide a musculo- periosteal covering. Here, after well retracting the integumentary coverings, the muscles are divided circularlv to the bone, — extending the hand while 35» AMPUTATIONS. c B the flexors are cut and flexing it while the extensors are being severed. A circular cut is made through the periosteum, around each bone, on a level with the cut muscles — the interosseous membrane is divided transversely — and a musculo-periosteal covering is freed up to the saw-line, with a periosteal elevator, from each bone. All soft parts are now retracted and the bones sawed, completing the section of the more mov- able radius first. Tie the radial, ulnar, anterior and posterior interosseous arter- ies. Cut the tendons (which are here especially numerous) and the nerves short. Suture the musculo-periosteal covering over the bones — and stitch the skin and fascia in a vertical antero-pos- terior or lateral direction. Comment. — (i) Owing to the pre- dominance of tendons in this locality, the infundibuliform variety of the circular method is impracticable. (2) The above operation is very similar to the modified circular method just described, which is generally considered better than the pres- ent form, in this locality. The cuff method, indeed, is not possible if the limb tapers very decidedly at the site in- volved. (3) A musculo-periosteal cover- ing is specially indicated here, as being the best means of guarding against a fusion of the cut edges of the bones and consequent loss of pronation and supina- tion. (4) As the large mass of tendons is difficult to cut squarely by a circular incision, a long, narrow knife may be slipped under them, and they may then be cut directly upward from within — or they may be divided with strong, sharp scissors. P'ig.328.— Amutations about Fore- arm and Elbow : — A, Through middled forearm, by circular method ; B, At elbow- joint, by single external flap ; C, At elbow, by oblique circular method. AMPUTATION OF UPPER TWO-THIRDS OF FOREARM BV EQUAL ANTERIOR AND POSTERIOR FLAPS. Description. — The anterior and posterior aspects of the forearm furnish equal U-shaped flaps of skin and muscle — the anteriorly largely composed of supinator longus and flexors, — the posterior largely made up of extensors. Position. — As in the modified circular method (page 356). Landmarks. — Saw-line. Incisions. — An anterior and a posterior U-shaped flap are incised on the respective aspects of the forearm, the base of each flap at the saw-line being equal to a half-circumference of the limb at that line, and the length of each equal to three-fourths of the diameter — the hand being supinated in making the anterior flap, and the forearm vertical in making the posterior flap (Fig. 326, B). SURGICAL ANATOMY OF THE ELBOW-JOINT. 359 Operation. — Having cut through skin and fascia in outlining the flaps, these incisions are now deepened upon the line of the retracted skin, beginning at the ulnar side of the anterior flap, in case of the right arm (and on the radial side upon the opposite arm). The vertical ulnar incision will involve the flexor carpi ulnaris and flexor profundus — the vertical radial incision will involve the two radial carpal extensors — both vertical incisions passing directly to the bones. The muscles on the anterior and posterior aspects of the forearm, at the lower rounded extremities of the flaps, are cut from without inward in such a manner as to bevel them, slightly. The entire flaps are now raised from the bones up to a point sufficiently below the saw-line to furnish a musculo-periosteal covering — at which level the periosteum is circularly divided around the bones — the interosseous membrane cut trans- versely — and the musculo-periosteal covering freed to the saw-line. The soft parts are then retracted and the bones sawed. The radial, ulnar, anterior and posterior interosseous arteries are tied. The median, radial, and ulnar nerves should be cut short, or even dissected from the flap. The musculo- periosteal covering is sutured and the muscles quilted — and the integuments sutured in a lateral line. Comment. — These flaps may be less satisfactorily cut by transfixion— in which method, also, the interosseous membrane is apt to be pierced. SURGICAL ANATOMY OF THE ELBOW-JOINT. Bones. — Humerus, radius, and ulna. Articulations and Ligaments. — (a) Of the Elbow-joint; — anterior, posterior, internal lateral and external lateral ligaments, and synovial mem- brane, (b) Of the Superior Radio-ulnar Joint; — orbicular ligament, and synovial membrane. Muscles in Neighborhood of Elbow. — (A) Muscles arising a greater or lesser distance above elbow and inserted below elbow: — (a) On anterior aspect; — biceps and brachialis anticus. (b) On posterior aspect; — triceps and subanconeus. (c) On radial aspect; — supinator longus and extensor carpi radialis longior. (B) Muscles arising from inner condyle of humerus and inserted into forearm and hand; — pronator radii teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris, flexor sublimis digitorum. (C) Muscles arising from outer condyle of humerus and inserted into forearm and hand; — extensor carpi radialis brevior, extensor communis digitorum, extensor minimi digiti, extensor carpi ulnaris, anconeus and supinator brevis. Muscles in Direct Relation with Elbow-joint. — Anteriorly; brachialis anticus. Posteriorly; triceps and anconeus. Externally; supinator brevis and common tendon of origin of extensor muscles. Internally; common tendon of origin of flexor muscles. Arteries in Neighborhood of Elbow. — Brachial, with superior profunda, inferior profunda, and anastomotica magna branches. Radial, with radial recurrent branch. Ulnar, with anterior ulnar recurrent and posterior ulnar recurrent branches. Veins in Neighborhood of Elbow. — Superficial; — median, median basilic, median cephalic, deep median, radial, cephalic, anterior ulnar, poste- rior ulnar, and common ulnar. Deep; — Two venae comites accompanying each of above arteries. Nerves in Neighborhood of Elbow. — Superficial; — musculocutaneous, internal cutaneous, lesser internal cutaneous, external cutaneous, and branches 360 AMPUTATIONS. of triusculospiral. Deep; — ulnar, median, radial and posterior interosseous branches of rnusculospiral. Bicipital Fascia. — A broad aponeurosis given off from inner side of tendon of biceps, opposite bend of elbow — and passing between the brachial artery and superficial veins and nerves of elbow obliquely downward and inward to become continuous with the deep fascia of forearm, fastening down the flexor muscles. Bursae in Neighborhood of Elbow. — Between olecranon and skin, and between olecranon and triceps. Epiphyses. — Portion of epiphysis forming radial condyle and trochlea is within the capsule of the joint — that forming the two condyles is without. The epiphyses for the trochlea and external condyle blend and join shaft about sixteenth or seventeenth year — that for internal condyle, about eighteenth year. The upper epiphysis of radius forms the head — is within the joint — and joins shaft about sixteenth or seventeenth year. The olecranon is chiefly formed by diaphysis — an epiphysis occurs in its summit from the tenth to twelfth year— joins shaft about sixteenth or seventeenth year — anteriorly the epiphysis being intersynovial, and posteriorly subperiosteal. Movements of Elbow- joint. — (1) Flexion — by biceps, brachialis anticus, aided by muscles having origin from internal condyle of humerus and by supinator longus. (2) Extension — by triceps, anconeus, aided by extensors of wrist and by extensor communis digitorum and extensor minimi digiti. The cross-sections at and just below the elbow-joint are shown in Figs. 329 and 29. SURFACE FORM AND LANDMARKS OF THE ELBOW. Position of radio-humeral line, and hence the joint-line of the elbow, may be found by feeling for the depression between the head of the radius and capitellum of the humerus at the back of the elbow, marked by a dimple in the integument in the interval between the anconeus to the ulnar side, and the muscular mass of supinator longus and two carpal radial extensors to the radial side. The humero-radial articulation is horizontal — the humero-ulnar articu- lation slopes slightly downward. The fold of the elbow, more prominent when the forearm is semi-flexed, is a little above the level of the joint, and forms the base of the triangular fossa below the elbow, whose sides are formed by the supinator longus and pronator radii teres. The inner condyle of the humerus is the more prominent and is a little more than 2.5 cm. (1 inch) above the elbow-joint. The outer condyle is 2 cm. (f inch) above. When the forearm is fully extended, the inner condyle, tip of olecranon, and external condyle are all on the same transverse line (in extreme extension, the tip of the olecranon is slightly above); — when the forearm is flexed to a right angle, the tip of the olecranon is directly below the condyles; — when the forearm is completely flexed, the tip of the olecranon is below and in front of the condyles. A line connecting the two condyles forms a right angle with the axis of the arm — and an angle with that of the forearm. SURGICAL CONSIDERATIONS IN DISARTICULATING ELBOW-JOINT. 361 The upper part of the olecranon is covered by the triceps — the lower part is subcutaneous, and separated from the skin by a bursa. Three eminences are present upon the anterior aspect of the elbow region; — the biceps above and in the center — the supinator longus and common extensor group on the outer — and the pronator radii teres and common flexor group upon the inner side. The ulnar nerve and posterior ulnar recurrent artery lie in a deep groove between the olecranon and inner condyle of the humerus. The anterior integument of the elbow is thin and retractile — the posterior integument loose and but little retractile. GENERAL SURGICAL CONSIDERATIONS IN DISARTICULATING AT THE ELBOW- JOINT. The stump after disarticulating at the elbow-joint is better for the adapta- tion of an artificial limb than after amputation through the arm. To find the elbow-joint — place the thumb just beneath the external condyle of the humerus and, grasping the wrist with the right hand, pronate and supinate the forearm — when the upper limit of the radial head will be found about 1.3 cm. (4 inch) below the external condyle. The joint is entered and disarticulated more easily from the outer side. Fig. 329. — Transverse Section through the Condyloid Expansion of the Right Arm: — A, Biceps tendon; B, Supinator longus; C, Musculospiral nerve and superior profundus artery; D, Brachialis anticus; E, Extensor carpi radialis longior; F, Olecranon; G, Anconeus; H, Triceps; I, Brachial artery, vena; comites, and median basilic vein; J, Pronator radii teres; K, Median nerve; L, Flexor carpi radialis; M, Condyloid expansion of humerus; N, Ulnar nerve; O, Olecranon bursa. (Cross-section modified from Braune.) The muscles on the outer side of the elbow retract more powerfully than those upon the inner side, chiefly owing to the presence of the supinator longus. 3^2 AMPUTATIONS. The lower end of the humerus is so large that a liberal allowance of covering is necessary. And a more liberal covering has to be provided for the inner than for the outer condyle of the humerus — incisions, therefore, are longer on the inner aspect. The skin posteriorly is used to pressure — but the muscles here are not so available for padding as in front. Temporary drainage should be used after disarticulation. The stump should be elevated upon a splint. DISARTICULATIONS AT THE ELBOW, IN GENERAL. Best Methods. — Anterior Ellipse — best, where ample sound tissue exists; well nourished and thick enough to cover bones well; cicatrix well placed; but requires considerable tissue; skin-pouch over the olecranon is apt to be left. Posterior Ellipse — best where anterior tissue is unavailable; covering thin and uneven, though used to pressure. Long Antero-internal and Short Postero-external Flaps — cover disarticulated end of humerus well; especially indicated where both lateral aspects of forearm can furnish covering and neither anterior nor posterior can supply the large amounts of tissue neces- sary for the elliptical methods. Other Methods. — Circular. Modified Circular. Anterior Flap. Poste- rior Flap. Long Anterior and Short Posterior Flaps. Short Anterior and Long Posterior Flaps. Single External Flap. Equal Lateral Flaps. Un- equal Lateral Flaps. Lateral Skin Flap. Racket Method. Of these methods, the circular requires the least sacrifice of parts, but the resulting covering is not so satisfactory. General Indications. — Tubercular disease; injury or disease of forearm. DISARTICULATION OF ELBOW- JOINT BY ANTERIOR ELLIPSE — FARABEUF. Description. — The covering is, essentially, an anterior flap — the idea of the ellipse being gotten in viewing the outlined incision laterally. The lower anterior convexity of the covering is sutured into the upper posterior concavity. Position. — Given in the course of the operation. Landmarks. — Joint-line; prominence of olecranon; eminence of supinator longus on anterior aspect of forearm. Incision. — The highest point of the ellipse is posterior, over the prominence of the olecranon. The lowest point of the ellipse is anterior, over the eminence of the supinator longus, just above the middle of the forearm. Midway between the upper and lower rounded ends of the ellipse the lateral borders of the ellipse pass along the mid-lateral aspects of the forearm (Fig. 330, A). Operation. — The surgeon stands on the left of either right or left elbow (which will place the patient's elbow on his right) — grasping his wrist with his left hand, and flexing the elbow, so rotates the limb as to make the entire elliptical incision without relaxing his hold of the wrist, or removing the knife, which passes from olecranon to olecranon. Taking the right limb, for instance, turn the slightly flexed elbow so as to present the radial aspect— DISARTICULATION OF ELBOW-JOINT. 363 enter the knife at the apex of the olecranon — pass down the radial lateral aspect — across the lower end of the ellipse, on the anterior aspect of the forearm (with the forearm extended and supine) — then along the inner aspect (with elbow again flexed and the inner aspect of the forearm thereby made to present) and upward to the olecranon. The skin and fascia upon the proximal side of the lower end of this incision are now further retracted by hand. On the line of the retracted integuments the muscles are then cut obliquely from without inward and upward toward the joint, in such a manner as to bevel the anterior covering which is being raised — and, at the same time, raise as much of a capsulo-periosteal covering as possible. This anterior flap is dissected and retracted upward to the joint-line. The anterior lateral and posterior ligaments of the joint are now cut in order. The triceps and any remaining posterior tissues are sev- ered. The radial, ulnar, interosseous, mus- cular branches, and, possibly, the posterior ulnar recurrent and terminations of the su- perior and inferior profunda are ligated. Quilt the muscles in the anterior flap to the fascia along the margins of the upper half of the ellipse. Suture the integumentary tis- sues of the convex lower end of the flap into those of the upper concavity. Temporary drainage is indicated. Comment. — After the integuments are incised, the muscles are sometimes, though less satisfactorily, cut by thrusting a long knife through the limb opposite the anterior g aspect of the joint and cutting from within outward on a line with the retracted skin. DISARTICULATION OF ELBOW- JOINT BV POSTERIOR ELLIPSE. A Fig. 330. — Disarticulations at the Elbow-joint: — A, By anterior ellipse; B, By long antero-internal and short postero-external flaps. Description. — The covering is, practi- cally, a posterior flap — the idea of the ellipse being seen in a lateral view of the incision. Position. — Given in the course of the operation. Landmarks. — Joint-line; tip of olecranon. Incision. — The highest point of the ellipse is anterior, opposite the lower margin of the joint-line. The lowest part is posterior, between 8 and 10 cm. (3 and 4 inches) below the joint-line. Midway between the upper and lower rounded ends of the ellipse, the lateral borders of the ellipse pass along the mid-lateral aspects of the forearm. \\ ith the elbow flexed to an angle of 135 degrees, the lateral parts of the incision will be parallel with the prolonged anterior aspect of the arm (Fig. 331). Operation. — The surgeon stands on the right of either elbow, grasping the patient's wrist with his left hand (the back of his hand uppermost and his thumb toward the patient's fingers), and manipulates the elbow so as to complete the incision at one sweep — beginning the incision at the anterior joint-line with the elbow flexed at the above angle — passing down the inner 3°4 AMPUTATIONS. aspect (while that part is manipulated so as to render it prominent) — crossing the dorsal aspect (while the forearm is held vertical) — ascending the outer aspect (while that aspect is made prominent) — to the place of beginning. Upon the line of the retracted integuments, the deeper parts are now cut. Those along the posterior aspect of the ellipse are divided, together with the periosteum, and including the anconeus, and insertion of the triceps when reached, and are dissected up to just above the tip of the olecranon. The deeper parts along the anterior portion of the ellipse are then divided, corre- sponding with the joint-line, and the capsule of the joint divided transversely, lollowed by division of the lateral ligaments and posterior portion of the capsule (unless a capsulo-periosteal covering can be raised). Tie the brachial, posterior interosseous, muscular branches and terminations of the superior and inferior profunda. Cut the ulnar nerve especially short. Quilt the muscles in the posterior flap to the fascia along the mar- gins of the upper half of the ellipse. Drain temporarily. Suture the integuments of the lower portion of the ellipse (the convexity) of the posterior flap, to the upper concavity of the incision. Comment. — Transfixion of the lower part of the posterior flap is even less advisable than transfixion in the anterior ellipse — as, in the former case, the bone is almost subcu- taneous. DISARTICULATION OF ELBOW- JOINT BY LONG ANTERO-INTERNAL AND SHORT POS- TERO-EXTERNAL FLAPS. Description. — A method of unequal lat- eral flaps of skin and muscles — the incisions themselves are lateral, the bulk of the mus- cles being antero-internal and postero-ex- ternal. Position. — The forearm is held in supi- nation during anterior incisions — and verti- cal during posterior incisions, or partly flexed. Landmarks. — Elbow joint-line; tip and base of olecranon. Incisions. — Antero-internal incision — begins at center of anterior aspect of the joint-line — passes obliquely downward and inward over the forearm, in such a way as to meet the mid-lateral aspect of the forearm, on the ulnar side, at a distance of about 7.5 cm. (3 inches) below the joint-line — thence passes upward and backward along a corresponding line to the base of the olecranon. Postero-external incision — a shorter incision but very similar to the longer, passes between the same points, crossing the mid-lateral aspect of the forearm, on the radial side, about 2.5 cm. (1 inch) below the joint- line (Fig. 330, B). This is practically an internal and external flap. Operation. — Along the line of these retracted integuments the muscles are cut obliquely down to the bone — when they, and as much of the periosteum Fig. 331. — Disarticulation of Elbow by Posterior Ellipse? SURGICAL ANATOMY OF THE ARM. 365 as possible, are dissected up to the joint-line in front, and to the tip of the olecranon behind. The elbow is then flexed — the triceps is divided at its attachment to the olecranon — and disarticulation completed by dividing the posterior, lateral and anterior ligaments, in order. Tie the brachial, termina- tions of the superior and inferior profunda, and, possibly, some small muscular and articular branches. The large antero-internal flap folds over the articular end of the humerus— its muscles are to be quilted to those of the smaller flap — and the integuments of the two flaps sutured — placing the cicatrix upon the externo-terminal aspect of the joint. Fig. 332. — Disarticulation at Elbow : — By long anterior and short posterior flaps. Fig. 333. — Disarticulation at Elbow : — By long posterior and short anterior flaps. SURGICAL ANATOMY OF THE ARM. Bones. — Humerus. Muscles of the Arm. — (A) Anterior Humeral Region: — coracobrachial, biceps, brachialis anticus. (B) Posterior Humeral Region: — triceps, sub- anconeus. (C) Muscles having their insertions in upper portion of humerus: — supraspinatus, infraspinatus, teres minor, subscapularis, pectoralis major, latissimus dorsi, deltoid, teres major. (D) Muscles having their origin from lower portion of humerus: — (a) From internal condyle and ridge: — pronator radii teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris, flexor sublimis digitorum — (b) From external condyle and ridge: — supinator longus, extensor carpi radialis longior, extensor carpi radialis brevior, ex- tensor communis digitorum, extensor minimi digiti, extensor carpi ulnaris, anconeus, supinator brevis. Arteries of Humeral Region. — From Axillary: — acromial and humeral branches of acromial thoracic, subscapular, anterior circumflex, posterior circumflex, and axillary itself. From Brachial: — superior profunda, nutrient, 366 AMPUTATIONS. inferior profunda, anastomotica magna, muscular, and brachial itself. From Radial: — radial recurrent. From Ulnar: — anterior ulnar recurrent, posterior ulnar recurrent. Veins of Humeral Region. — Superficial: — cephalic, basilic, Deep: — two vente comites accompany each of above branches of main arteries, and also brachial artery. Axillary vein is formed by two brachial venae comites and basilic vein. Nerves of Humeral Region. — Anteriorly: — musculocutaneous, median, internal cutaneous, ulnar, lesser internal cutaneous, intercosto-humeral. Posteriorly: — circumflex, musculospiral. The cross-sections of the arm are shown in Figs. 25, 27, and 335. SURFACE FORM AND LANDMARKS OF THE ARM. The humerus is almost entirely covered by muscles, being subcutaneous only at the internal and external condyles. The greater and lesser tuber- osities and the head may be defined. The greater tuberosity lies just below the antero-external aspect of the acromion. The lesser tuberosity lies to the inner side of and below the greater, the bicipital groove intervening. To feel the head of the bone, abduct the arm, when the head will project promi- nently into the axilla. The internal condyle and internal condyloid ridge, and external condyle and external condyloid ridge, can be felt just above the elbow-joint. The latter are more easily felt during semiflexion, as a depression between adjacent muscles. The greater tuberosity and external condyle are in the same straight line and face in the same direction. The head of the humerus and the internal condyle are also in the same straight line and likewise face in the same direc- tion. When the arm hangs by the side, the bicipital groove looks directly for- ward. The rough prominence upon the outer aspect of the middle of the humerus, into which the deltoid is inserted, also marks the level of the insertion of the coracobrachialis and the origin of the brachialis anticus — and also the entrance of the nutrient artery into the bone, and the level at which the musculospiral nerve and superior profunda artery cross the back of the bone. The upper epiphysis is horizontal and placed just above the surgical neck, joining the shaft at the twentieth year. The coracobrachialis and biceps above, and the biceps below, form the prominent muscular mass of the front of the arm. The brachialis anticus is discernible at the lower part of the arm, on each side of the biceps. The triceps determines the form of the back of the arm. The inner head is least distinct. The outer head forms the large prominence just below the posterior border of the deltoid. The long head emerges from between the teres major and minor and descends along the back of the arm. The supinator longus and extensor carpi radialis longior form a prom- inence on the outer side of the lower portion of the arm. Above the middle of the arm, the biceps, deltoid, coracobrachialis, and long head of triceps are more or less free and capable of retraction. Below the middle of the arm, the biceps is the only free muscle. It is for this reason that the circular method of amputation is suitable only to the lower half of the arm. In women and in fat persons the contour of the arm is more rounded SURGICAL CONSIDERATIONS IN AMPUTATIONS ABOUT ARM. 367 and more nearly of one size throughout. In the muscular, it is less regular and more flattened laterally. On the inner and outer sides of the biceps are found the inner and outer bicipital furrow,— the cephalic vein occupying the latter — and the brachial artery and basi'ic vein the former. The superior profunda artery arises just below the outlet of the axilla — the inferior profunda opposite the center of the shaft — and the anastomotica magna about 5 cm. (2 inches) above the bend of the elbow. The skin is most retractile over the inner aspect of the arm. Fig. 334. — Transverse Section through the Lower Third of the Right Arm: — A, Biceps; B, Brachialis anticus; C, Musculospiral nerve and superior profunda artery; G, Supinator longus; D, Brachial artery, vena; comites, basilic vein, and median nerve; E, Ulnar nerve and superior profunda artery; F, Triceps. (The cross-section modified from Braune.) GENERAL SURGICAL CONSIDERATIONS IN AMPUTATIONS ABOUT THE ARM. The shortest stump of an arm, even an amputation at the surgical neck, is better than a shoulder-joint disarticulation — as such a stump will ordinarily be able to move an artificial limb. It is, therefore, desirable to retain as much of the humerus as possible, as leverage for the artificial limb. From the standpoint of the amputator, the arm may be divided into two natural regions — a lower third, more or less cylindrical, and where the muscles are largely attached to bone — and an upper two-thirds, more or less conical, flattened or irregular, and where the muscles are largelv free and capable of retraction. Therefore a circular method of amputation is preferable for the lower third, and a flap method for the upper two-thirds. The surgical neck of the humerus marks the height at which a useful stump can be obtained, as the capsule extends down to its level internally. 368 AMPUTATIONS. In amputating at the surgical neck, the bone is sawed between the tuber- osities, and insertions of the pectoralis major and teres major. The supra- spinatus, infraspinatus, teres minor, and subscapularis are left attached to the head of the humerus. The bone is sawed below the epiphyseal line. The synovial membrane of the joint (accompanying the biceps tendon) is apt to be opened on the inner aspect, where it is lowest. The bursa under the subscapularis tendon generally communicates with the joint and may be opened during the operation. As much of the attachment of the pectoralis major, teres major, and latissimus dorsi as possible is raised with the peri- osteum, so as to be included in the musculo-periosteal covering of the end of the bone and in the quilting of the muscles, in order to retain the attach- ments of these muscles upon the stump and, therefore, their action upon the artificial limb. In an amputation through the upper two-thirds by an anterior flap twice as long as the posterior, the scar will eventually be terminal, owing to the much greater retraction of the anterior parts — the biceps contracting most of any muscle. A terminal cicatrix is sought in the stumps of the arm. The stump should be dressed upon a splint. For control of hemorrhage in amputating at the shoulder joint, see page 374. AMPUTATION OF THE ARM, IN GENERAL. Best Methods. — Modified Circular — best for the lower third. Long Anterior and Short Posterior Flaps — best for the upper two-thirds. Single Externa] Flap — best at the surgical neck. Other Methods. — Simple Circular (infundibular form). Single Anterior Flap (Malgaigne's method). Anterior Ellipse (practically an anterior flap). Posterior Ellipse (practically a posterior flap). Lateral Flaps (of skin and muscles). Rectangular Flap (Teale's method). Oval Method (at the surgi- cal neck). General Indications. — Extensive crushes of upper extremity; tubercular osteo-arthritis; sarcoma; tumors of elbow. AMPUTATION THROUGH THE LOWER THIRD OF THE ARM BY MODIFIED CIRCULAR METHOD. Description. — Two short skin-flaps are cut and turned back, and the muscles divided circularly in the infundibular manner. Position. — Patient supine, at edge of table; limb horizontally abducted over the edge of table during anterior incisions, and held vertically, with bent elbow, or drawn over the chest, in dorsal incisions. Surgeon on outer side of right and inner side of left limbs. Assistants steady the limb above and below the site of amputation. Landmarks. — Saw-line. Incision. — The lowest limit of the skin incision is placed at a distance below the saw-line equal to three-fourths of the diameter of the limb at the saw-line (thus securing a covering of ij diameters). Of this total dis- tance the small flaps will occupy, approximately, the lower one-third. These flaps are generally anterior and posterior (but may be lateral, or in any intermediate position, as the local conditions may demand). Their base is one-half the circumference of the limb — they pass down the lateral aspects of the limb to nearly their lower limit, when the}- bluntly round transversely AMPUTATION THROUGH THE LOWER THIRD OF THE ARM. 369 across the limb to a corresponding point on the opposite side. The anterior and posterior daps are similar (Fig. 335, A). Operation. — These flaps of skin and fascia are freed up to their base and turned back as cuffs. Here the more superficial muscles are circularly divided, and retracted in turn. Upon the line of these retracted superficial muscles, the deeper muscles are cut to the bone — at a level still beneath the saw-line. This last circular division also divides the periosteum around Fig.335.— Amputations through Arm and at Shoulder :— A, Through lower part of arm, by modified circular ; B, Through upper part of arm, by long anterior and short posterior flaps ; C, At shoulder-joint, by external racket method (Larrey's operation) ; D, D, At shoulder, by external, or deltoid, flap (Dupuytren's operation). the entire bone. All the soft parts, including the periosteum, are now freed up to the saw-line and the bone divided. Tie the brachial, superior pro- funda, inferior profunda, muscular, and possibly the anastomotica magna, branches. See that the musculospiral nerve is cleanly divided, and excise any portion of it apt to be pressed upon in bending the flap over the end of bone. Suture the musculo-periosteal covering. Quilt the muscles. Suture the flaps in a lateral line. 37° AMPUTATIONS. Comment. — (i) The modified circular method makes it easier to free the bone of soft parts up to the saw-line, and also furnishes a more sym- metrical terminal covering. If necessary, the skin-flaps may represent one- half of the distance between the saw-line and the lowest limit of the skin- incision. (2) The simple circular method (the infundibular form) mav be done here in small limbs with flabby coverings — but would be difficult in large limbs with firm coverings. When the infundibular circular method is used, it should be an oblique circular, the circle dipping lower on the antero- internal aspect of the arm, where, owing to greater retraction, it will be sub- sequently drawn up to the level with the outer part. AMPUTATION OF THE UPPER TWO-THIRDS OF THE ARM BY LONG ANTERIOR AND SHORT POSTERIOR FLAPS. Description. — Two U-shaped flaps of skin and muscle are raised, the posterior being one-half the length of the anterior. Position. — As in the last operation. Landmarks. — Saw-line. Incisions. — The base of each flap equals one-half circumference at the saw-line. The length of the anterior flap is equivalent to one diameter at the saw-line. And the length of the posterior flap is one-half the diameter. Both are U -shaped flaps. Care is taken to place these flaps so that the brachial artery will not be apt to be split — the vessel should be in the posterior flap — and the points of junction of the two flaps on the inner and outer aspect of the arm should be so shifted toward the outer side as to make this certain. The arm is raised vertically while the posterior flap is being marked out and incised (Fig. 335, B). Operation.- — Having incised skin and fascia along the above lines, the muscles are divided along the retracted integumentary coverings — cutting to the bone along the vertical limbs of the flaps, and cutting obliquely inward and upward along the rounded transverse endings of the flaps, in a bluntly beveled fashion — coming down upon the bone sufficiently far below the saw- line to provide a periosteal covering, which, with the muscles, is freed up to the saw line — and the bone divided. Care is taken to divide the musculo- spiral nerve evenly and short — as well as the nerves in the anterior flap which bend over the end of the bone, partially excising them if necessary. Tie the brachial, superior profunda, and inferior profunda, and muscular branches. Quilt the muscles of the anterior to those of the posterior flap — the former chieflv covering the end of the bone. Suture the skin margins of the flaps. The limbs should be steadied by a splint which also includes the shoulder. AMPUTATION OF ARM AT SURGICAL NECK BY SINGLE EXTERNAL FLAP. Description. — A U-shaped flap, composed chiefly of deltoid, is raised from the outer aspect of the arm, while the parts on the inner aspect are divided transversely, or with slight downward convexity, on a level with the upper limit of the limbs of the flap. Position. — As in the above operations — the limb being drawn well away from the body, which will give access to both outer and inner aspects. Landmarks. — Surgical neck of humerus (just below the tuberosities). AMPUTATION OF ARM AT SURGICAL NECK. 371 Incisions. — Flap incision — the base of the flap, which is U-shaped, is placed about 2.5 cm. (1 inch) below the saw-line through the surgical neck — its width being equal to half the circumference of the limb at the flap's upper limit — its length being that of the diameter at the saw-line. The anterior limb of the flap passes down the mid-anterior aspect of the arm, and the Fig. 336.— Amputations about Arm and at Shoulder: — A, Through lower part of arm, by equal lateral flaps; B, Through surgical neck of humerus, by single external flap; C, At shoulder- joint, by Furneaux Jordan's method. posterior limb down the mid-posterior aspect. Inner incision — crosses the inner aspect of the arm, with a slight downward convexity, connecting the upper limits of the vertical limbs of the flap (Fig. 336, B). Operation. — The above incisions pass, at first, through skin and fascia only. After the integuments have retracted, the external flap is cut from without inward, upon the line of the retracted tissues, beveling obliquely upward and inward toward the upper limit of the flap. The bleeding vessels in this external wound are clamped as met. The inner incision is now deep- ened — and the axillary vessels tied as encountered and before being cut — 37 2 AMPUTATIONS. and the nerves cut short. The tendon of the pectoralis major is preserved, the periosteum being divided below the bicipital groove and stripped up, including this tendon. Avoid opening the synovial sheath of the biceps tendon, dividing it low down, together with the coracobrachialis. Detach the tendons of the latissimus dorsi and teres major as subperiosteal^ as possible. Retract the outer flap and the parts on the inner aspect of the arm up to the saw-line — and divide the bone through the lowest part of the surgical neck possible. Avoid the circumflex nerve and the posterior circumflex artery. The brachial artery will have been tied in the course of operation — branches of the anterior and posterior circumflex and muscular branches which have not been previously tied are now taken up. Bring the outer flap across the end of the bone — quilt the muscles of the flap to those divided in the inner incision — and suture the integumentary portion of the flap trans- versely to corresponding tissues of the inner wound. Dress the arm against a full pad in the axilla. Comment. — ( i) The chief advantages of amputation through the surgical neck, over disarticulation at the shoulder, are, that the mortality is less; that a stump for an artificial limb is secured; and that there is not so much muscular atrophy. The chief disadvantages are, that the remaining epiph- ysis is apt to produce bone; and that the stump may be strongly abducted. (2) The outer flap may be less satisfactorily cut by transfixion. SURGICAL ANATOMY OF SHOULDER- JOINT. Bones. — Scapula; clavicle; humerus. Articulations and Ligaments. — (a) Acromio-clavicular Articulation: — superior acromio-clavicular, inferior acromio-clavicular ligaments; inter- articular fibro-cartilage; synovial membrane, (b) Coraco-clavicular Union: — trapezoid and conoid ligaments, (c) Shoulder-joint: — capsular, gleno- humeral bands of capsular, coraco-humeral, glenoid and transverse humeral ligaments, and synovial membrane. Muscles Reinforcing Shoulder-joint. — Above: — supraspinatus. Be- low: — long head of triceps; an upward extension of pectoralis major. In- ternally: — subscapularis. Externally: — infraspinatus; teres minor. Within Joint: — long head of biceps. Surrounding Joint: — deltoid. Muscles in More or Less Direct Relation with Shoulder-joint. — (a) Anterior Thoracic Region: — pectoralis major, pectoralis minor, subclavius. (b) Lateral Thoracic Region: — serratus magnus. (c) Acromial Region: — deltoid, (d) Anterior Scapular Region: — subscapularis. (e) Posterior Scapu- lar Region: — supraspinatus, infraspinatus, teres minor, teres major, (f) Muscles Passing from Shoulder to Arm Anteriorly: — biceps, coracobrachialis. (g) Muscles Passing from Shoulder to Arm Posteriorly: — triceps. Movements of Shoulder-joint. — Forward: — pectoralis major, anterior fibers of deltoid, coracobrachialis, biceps (when elbow is flexed). Backward: — latissimus dorsi, teres major, posterior fibers of deltoid, triceps (when elbow is extended). Abduction: — deltoid, supraspinatus. Adduction: — subscapularis, pectoralis major, latissimus dorsi, teres major. Outward Rotation: — infraspinatus, teres minor. Inward Rotation: — subscapularis, latissimus dorsi, teres major, pectoralis major. Bursa? in Neighborhood of Joint. — Beneath tendon of subscapularis — communicating with joint by opening on anterior side of capsule. Beneath tendon of infraspinatus (sometimes present) — communicating with joint by SURFACE FORM AND LANDMARKS OF SHOULDER- JOINT. 373 opening on posterior aspect of capsule. Between under surface of deltoid and outer surface of capsule — not communicating with joint. Biceps tendon passes through the joint and is surrounded by tubular sheath continuous with synovial membrane. Arteries in Neighborhood of Shoulder-joint. — Suprascapular, trans- versalis colli, superior thoracic, acromial thoracic, long thoracic, alar thoracic. subscapular, anterior circumflex, posterior circumflex. Veins in Neighborhood of Shoulder-joint. — Two suprascapular, two transversalis colli, superior thoracic, acromial thoracic, long thoracic, alar thoracic, subscapular, anterior circumflex, posterior circumflex, cephalic Nerves in Neighborhood of Shoulder-joint. — Acromial branch of cervical plexus, posterior thoracic, suprascapular, external anterior thoracic, internal anterior thoracic, upper subscapular, lower subscapular, middle subscapular, circumflex, — and following passing through axilla to arm and forearm; musculocutaneous, internal cutaneous, lesser internal cutaneous, median, ulnar, musculospiral. SURFACE FORM AND LANDMARKS OF SHOULDER- JOINT. To find the direction and position of the shoulder-joint — having fully abducted the arm, draw a slightly curved line from the middle of the coraco- acromial ligament, with convexity inward, to the innermost part of the head of the humerus felt in the axilla. The coracoid process is not actually within the infraclavicular fossa, but lies near the pectoro-deltoid groove, covered by the anterior fibers of the deltoid, and a little below the clavicle. The center of the coraco-acromial ligament lies over the superior aspect of the shoulder-joint. The greater tuberosity of the humerus is felt externally — the lesser ante- riorly. To the former are attached the supraspinatus, infraspinatus, and teres minor, in order, from above downward. To the lesser — the subscapularis. With the arm by the side and the hand supine, the bicipital groove looks directly forward — the head of the humerus lying entirely to the outer side of the vertical line from the coracoid process. The head of the humerus faces, practicallv, in the direction of the inner condyle — and the greater tuberosity in the direction of the outer condyle. The upper epiphysis of the humerus unites with the bone about the twentieth year — the inner part of the cartilage is within the capsule of the joint — the outer, anterior and posterior parts are subperiosteal. The surgical neck lies between the bases of the tuberosities and the inser- tions of the latissimus dorsi, teres major, and pectoralis major. The deltoid gives the rounded outline to the shoulder — and its insertion is marked by a depression on the outer aspect of the middle of the arm. The groove between the pectoralis major and deltoid contains the cephalic vein and the humeral branch of the acromio-thoracic artery. The acromio-thoracic artery emerges from the upper border of the pec- toralis minor in the course of the brachial artery, where a line from near the junction of the third rib and its cartilage to the coracoid process crosses that vessel. The posterior circumflex artery and circumflex nerve cross the surgical neck of the humerus transversely about 1.3 cm. (h inch) above the center of the vertical axis of the deltoid. 374 AMPUTATIONS. The skin over the deltoid is thick, adherent, and little retractile — that over the pectoralis major is fine and retractile. The dorsalis scapulae artery crosses the axillary border of the scapula opposite the center of the vertical axis of the deltoid. GENERAL SURGICAL CONSIDERATIONS IN DISARTICULATING AT SHOULDER- JOINT. Methods of Hemorrhage-control during operations near the Shoulder- joint — (a) Wyeth's Shoulder Transfixion Pins, with tubular rubber Tourni- quet placed above them; — The anterior pin (Fig. 337, A) enters the middle of the anterior axillary fold, slightly to the inner side of the center of the fold — D A u A tig. 337. — Wyeth's Pins Controlling Hemorrhage in Disarticulation at the Shoulder-joint: — A Anterior pin; B, Posterior pin. The rubber tubing is then wound about the limb proximally to the pins and knotted. Fig. 337- and emerges 2.5 cm. (1 inch) within the tip of the acromion process. The posterior pin (Fig. 337, B) enters the posterior axillary fold, at a point corre- sponding with the entrance of the anterior pin — and similarly emerges poster- iorly 2.5 cm. (1 inch) within the tip of the acromial process. Care is neces- sary to avoid striking the spine of the scapula with the posterior pin. Rubber tubing of 1.3 cm. (£ inch) diameter is wound several times around the axilla, above the pins, and tied (Fig. 268, right shoulder), (b) Where the special pins are not at hand, the tube has been held in place by several sutures passed through the true skin and temporarily tied over the tubing, after it has been knotted. The tubing is thus prevented from slipping when the soft parts recede, or sink in, after the head of the humerus is removed. The method, however, is less satisfactory than the use of the pins (Fig. 338). (c) J. Lynn Cardiff has devised a clever forceps-tourniquet for controlling hemorrhage during operations upon the extremities. It consists of a clamp, one blade of SURGICAL CONSIDERATIONS IN SHOULDER DISARTICULATIONS. 375 which is probe-pointed, the other serrated. In the interscapulo-thoracic amputation a limited incision is made, exposing the lower edge of the pectoral muscle in the mid-axilla — through this the probe-pointed blade of the clamp is thrust and carried onward and upward beneath the pectoral muscles and the axillary vessels and nerves — to emerge through the wound previously made for the purpose of dividing the clavicle (Fig. 339). The instrument is then Fig. 338.— Illustrating the Use of Sutures Passed through the True Skin and Temporarily tied over Rubber Tubing to hold it in Place: — Used in order to control the vessels in disarticulating at the shoulder-joint in the absence of the Wyeth pins. clamped — thus compressing the muscles and axillary structures between the probe-pointed and serrated blades. The soft parts are then divided distally to the clamp — the vessels are brought within easy reach — and the ligatures are placed (Fig. 340). The points of entrance and exit of the probe-pointed blade are made to correspond with some part of the incision for the interscapulo- thoracic amputation, (d) Preliminary exposure and double ligation of the axillary artery, with division between the two ligatures (as in Larrey's oper- ation, page 381). (e) Digital compression of the main artery in the flap by an assistant, who grasps the part just prior to division of the artery (as in Spence's operation, page 378). (f) By Tourniquet and Pad; — A firm pad is placed in the axilla — over tins are placed several turns of rubber tubing passing around the axilla — the ends are then carried in a single figure-of-eight fashion over the clavicle of the same side, and thence across the chest and are tied beneath the opposite axilla. Two strips of sterile gauze run beneath the tubing anteriorly and posteriorly (or placed in position prior to applying the tubing) will enable the tubing to be further and more securely drawn inward and thus make less the chances of slipping when the head of the humerus is removed (Fig. 268, left shoulder), (g) Compression (digital or instru- mental) of subclavian artery against the first rib, either with or without pre- liminary incision over the third part of the artery, through the superficial tissues, (h) Securing of the main vessels at the lower end of the incision, as 376 AMPUTATIONS. met in the course of the operation — an ordinary tourniquet having been first applied — (as in the Fourneaux Jordan method) . Comparison of methods of hemorrhage-control:— The control of hemor- rhage in disarticulating at the shoulder-joint, or in amputating very near the shoulder articulation, is the most serious consideration connected with these operations. Wyeth's method, where the pins do not interfere with the operation as planned, may be regarded as the best means against hemorrhage. Preliminary exposure and ligation of the artery — and compression of the artery in the flap— may be regarded as the next best methods. Fig. 339. — Thomas' Forceps-tourniquet for Controlling Hemorrhage during Operations itpon the Extremities: — The probe- pointed blade passes under the pectoral muscles and axillary vessels and nerves, and the serrated blade over these structures — the former coming out above the region of the previously divided clavicle. (Modified from Thomas.) The axillary vessels should be as cleanly cut as possible — and so approached as to be secured before being cut, where the method of preliminary ligation is adopted. The branches of the brachial plexus are to be divided high up. The acromial process should always be preserved — as it furnishes a support for the artificial limb. A capsulo-periosteally covered stump should be sought — as furnishing the best support for an artificial limb — therefore one should endeavor to DISARTICULATION AT SHOULDER-JOINT, IN GENERAL. 377 detach the insertions of the pectoralis major, latissimus dorsi, teres major, subscapularis, supraspinatus, infraspinatus, and teres minor along with the periosteum and capsule, in so far as this is possible. A vertical wound, in closing the site of operation, affords the best drainage. Sometimes drainage is made through a secondary opening. Temporary drainage is always indicated — owing to the extensive synovial surfaces. The stump should be dressed so as to compress dead spaces — and steadied against the thorax as a splint by the surrounding bandaging. Fig. 340. — Thomas' Forceps-tourniquet: — The pectoral muscles and axillary structures have been divided distally to the clamp and turned forward. Note: — the probe-pointed blade is here erroneously shown to be where the serrated blade should be, and vice versa. The correct position of the blades is shown in the preceding illustration. (Modified from Thomas.) DISARTICULATION AT SHOULDER- JOINT, IN GENERAL. Best Methods. — Anterior Racket Method (Spence's operation). Ex- ternal Racket Method (Larrey's operation). External or Deltoid Flap (Dupuytren's operation). Other Methods. — Anterior and Posterior Flaps. Circular. Elliptical. Lateral Flaps. Fourneaux Jordan's Method. Comparison of Methods. — The racket methods are the best. The features of the anterior racket method are: — excision of the shoulder-joint 378 AMPUTATIONS. may be done, instead of an amputation, through the vertical portion of the incision, which may be alone made at first, until it be found whether ampu- tation be necessary; there is the smallest division of muscle; the posterior circumflex artery and circumflex nerve are not cut; the main vessels are easily controlled. The features of the external racket method are: — the vertical portion of the incision also allows of an excision, the incision at first being exploratory, through which an excision of the joint may be made, or the operation may be converted into an amputation; there is considerable division of muscle and the joint is more deeply placed than in the anterior racket; the posterior circumflex artery and circumflex nerve are apt to be cut. The disadvantages of the external or deltoid flap, which may be regarded as probably the third best form of disarticulation, are, that the circumflex nerve and posterior circumflex artery are cut — and that preliminary exami- nation of the joint is impossible. General Indications. — Tumors of arm; extensive injury of arm; com- pound comminuted fractures; gunshot injuries; chronic disease of shoulder- joint; gangrene of upper limb; extensive osteomyelitis; extensive tumor masses of shoulder and scapula. DISARTICULATION AT SHOULDER- JOINT BV ANTERIOR RACKET METHOD — SPENCE'S OPERATION. Description. — The queue of the incision is placed over the anterior aspect of the upper end of the humerus — the diverging limbs of the racket, or oval, encircling the inner and outer aspects of the arm and meeting behind. Position. — Patient near edge of table; shoulders elevated; head to oppo- site side; limb partly abducted. Surgeon on outer side of both shoulders, or may stand on inner side of left. First assistant stands between shoulder and patient's head, controls hemorrhage and retracts flaps. Second assistant stands near elbow and manipulates limb. Landmarks. — Coracoid process; pectoro-deltoid groove. Incision. — Abduct the arm and rotate the head of the humerus outward. Begin the incision just to the outer side of the coracoid process — pass down through the clavicular fibers of the deltoid and pectoralis major, until the humeral attachment of the pectoralis major is reached, which is divided. From this point, the outer limb of the racket curves gently outward through the lowest part of the deltoid to the posterior border of the axilla. From the point of division of the humeral attachment* of the pectoralis major, the inner limb of the racket curves downward across the inner aspect of the arm — until it coincides with the opposite limb of the racket (Fig. 341, B). Operation. — (I) The vertical portion of the incision is carried directly to the bone. The outer limb of the racket at first passes through skin and fascia, and is then deepened to the bone and through the periosteum, along the line of the incised integuments. The inner limb of the racket merely passes through skin and fascia, and especial care is taken that it goes no deeper at this stage. (2) Returning to the outer lip of the wound, the anterior fibers of the deltoid will be found divided, and this lip of the wound is now freed from the bone and joint, as nearly subperiosteally as possible, thereby securing the retention of some of the attachments of the pectoralis major, * latissimus dorsi, and teres major to the fibrous tissue — the freeing being accomplished by means of the thumb, periosteal elevator and knife, and continuing up to the great tuberosity — carefully avoiding (by hugging the DISARTICULATION AT SHOULDER-JOINT. 379 bone) injury to the circumflex nerve and posterior circumflex artery, which are raised from the bone in this outer flap. (3) The inner lip is similarly, though less extensively, freed up to the lesser tuberosity, carefully guarding Fig. 341.— Amputations through Arm and at Shoulder :— A, Through lower arm, by oblique circular method ; B, At shoulder, by anterior racket method (Spence's operation) ; C, Of upper limb, together with scapula and part of clavicle, by antero-inferior (pectoro-axillary) and postero-superior (cervico-scapular) flaps (Berger's operation). the axillary vessels. (4) By manipulating the limb from the elbow, flexed at a right angle, the head of the bone and its tuberosities are made to present themselves in the wound. By rotating inward, the great tuberosity presents, and the supraspinatus, infraspinatus, and teres minor are severed very close 380 AMPUTATIONS. to the bone. By rotating outward, the lesser tuberosity presents, and the subscapularis is severed. (5) The long head of the biceps is next cut, and the capsule opened by dividing it transversely against the head of the bone. The capsule being cut and the muscles attached to the tuberosities severed, the head of the bone is now disarticulated and thrust upward above the glenoid cavity, by abducting and rotating the head of the humerus outward — the connection of the limb being maintained by the still unsevered tissues upon the inner aspect. (6) The surgeon grasps the disarticulated head with the left hand and draws it outward from the trunk. As he does so, the first assistant, standing behind the shoulder, places the palm of the fingers of both hands against the axillary aspect of the still uncut inner tissues, and his thumbs, one from each side, between the neck of the bone and the tissues of the inner side, compressing the axillary vessels between the thumbs in the wound and the outspread fingers in the axilla — until he feels all circulation controlled. The surgeon now passes a long knife between the neck of the bone and the thumb-nails of his assistant, and, by a steady, sawing move- ment, cuts his way from within downward and outward, aiming to come out on a line with the retracted integuments along the original incision, along me inner limb of the racket. As the knife cuts its way out, the fingers of the assistant follow the blade closely, with the artery under his grasp. Just prior to the final passage of the knife, the tissues are tightly grasped and steadilv held, until the knife emerges — when he presents to the surgeon the cut margin of the inner flap, with the vessels in easy evidence. (7) Tie the brachial artery at once, and the two brachial venae comites and the basilic vein. In the vertical and external limb of the racket, in incising and deepen- ing the wound, branches of the acromial thoracic, the anterior circumflex, and muscular branches are at first clamped and subsequently tied. (8) The posterior circumflex nerve should not be injured. The nerves which are severed are cut short. (9) The margins of the capsulo-periosteal wound, where any appreciable periosteum has been saved, are sutured. The muscles are quilted by deep and superficial tiers of buried catgut (chromic) sutures. Temporary drainage is provided. The integumentary edges of the wound are sutured in one vertical line. The stump should be snugly compressed against the thorax by the bandage. Comment. — (1) This operation is an illustration of the control of hemor- rhage by digital compression in the flap. (2) By saving as much of the attachment of the pectoralis major, latissimus dorsi and teres major, in the subperiosteal freeing of the humerus, connections in the stump are formed by these tendons and considerable range of movement is thereby added to an artificial limb. (3) The axillary vessels have been exposed where the inner limb of the racket crosses their course and ligated prior to disarticula- tion. (4) Where the deltoid tissues are very thick, this flap may be ad- vantageously thinned a little by making the incision of the outer limb of the racket in a beveling manner. (5) The more nearly the operation is done subperiosteallv, where no contraindication to the preservation of the peri- osteum exists, the greater the safety to the important tissues, especially the circumflex nerve and posterior circumflex artery. DISARTICULATION AT SHOULDER-JOINT. 381 DISARTICULATION AT SHOULDER- JOINT BY EXTERNAL RACKET METHOD — LARREY'S OPERATION. Description. — The queue of the incision is placed oYer the external aspect of the upper end of the humerus — from the center of this incision (which may first haYe been made for exploration of the joint alone) the two limbs of the racket diverge — encircling the anterior and posterior aspects of the arm and meeting on the inner side. Position. — As in Spence's operation (page 378). Landmarks. — Prominence of acromion. Incisions. — d) Vertical incision — (arm being slightly abducted) begins immediately below the anterior aspect of the prominence of the acromion and passes thence vertically down the external aspect of the arm for 10 cm. (4 inches). (2) Oval incision — from the center of the vertical incision the two limbs of the oval, or racket, begin and pass obliquely downward over the anterior and posterior aspects of the limb, meeting upon its inner border on a level with the lowest part of the vertical incision (Fig. 335, C). Operation. — (i) The vertical incision passes at once through the deltoid directly to the bone and into the joint. The operation, which may have been begun as an exploratory one, may end with an investigation of the joint — or may proceed to an excision of the joint structures — or may end as an amputation. If the latter, the oval, or racket, incision, as above described, is added to the vertical incision. (2) The limbs of the racket are at first incised through skin and fascia only, and may be made at one stroke, or, better, by two. (3) The anterior limb of the racket is now deepened, while the arm is rotated outward — the incision passing through the anterior portion of the deltoid — the tendon of the pectoralis major is severed as near the bone as possible — the coracobrachialis and biceps are divided — and, next to these, the axillary vessels are encountered, carefully exposed and doubly ligated, beyond the posterior circumflex branch. This flap is then freed up to the joint. For the same reasons mentioned under the last operation, the freeing of these flaps should be done as subperiosteally as possible. (4) The posterior limb of the racket is similarly deepened, the arm being rotated inward — the incision passing through the posterior portion of the deltoid — and meeting the anterior limb upon the inner side of the arm. This flap is then also freed up to the joint as subperiosteally as possible. (5) Dis- articulation is accomplished (after severing close to the bone in the above freeing of the anterior and posterior flaps, the attachments of the supra- spinatus, infraspinatus, and teres minor to the great tuberosity, and the subscapularis to the lesser) by cutting the capsule and the long head of the biceps against the head of the bone transversely. The head of the bone is now disarticulated and thrust upward. (6) To sever the remaining soft parts, the surgeon grasps the disarticulated head of the humerus with his left hand and draws it outward — then inserts a long knife between the neck of the bone and the remaining undivided parts, and, by a sawing movement, cuts his way downward and outward between the severed axillary vessels and the bone, coming out on a line with the retracted inner limb of the racket incision (just as in the disarticulation by the anterior racket). (7) Besides the above-named vessels, the anterior and posterior circumflex are both apt to be divided, as well as some muscular branches. The circumflex nerve is likely to be severed. All nerves are cut short. (8) The capsule is to be trimmed, if hanging in tags. Temporary drainage is used. The capsulo- 382 AMPUTATIONS. periosteal, or capsulo-muscular covering is sutured — the muscles quilted deeply and superficially — and the skin sutured in a vertical line. Comment. — This operation is an illustration of the control of hemor- rhage by the ligation of the main vessels in the line of incision, prior to dis- articulation. DISARTICULATION AT SHOULDER- JOINT PA' EXTERNAL OR DELTOID FLAP. Description. — A U-shaped flap, consisting practically of the deltoid muscle, is raised from the outer side of the shoulder — its upper limits being connected by a transversely curved incision across the inner aspect of the arm. Position.— As in Spence's operation (page 378). Landmarks. — Coracoid process of scapula; spine of scapula. Incision. — The base of this U-shaped flap extends from the coracoid process, anteriorly, to the spine of the scapula at the root of the acromion posteriorly. In length, the flap extends nearly to the insertion of the deltoid. The upper extremities of the limbs of the flap are joined by a transversely curved incision (with slight downward convexity) crossing the inner side of the arm about 5 cm. (2 inches) below the lower limit of the axilla. On the right side, the incision begins at the root of the acromion and ends at the coracoid, the arm having been placed across the chest. On the left side, the incision begins at the coracoid, with the arm abducted — and ends at the root of the acromion, with the arm across the chest. In both, the surgeon manipulates the limb with his left hand. This flap consists of the entire thickness of the deltoid at the base, while its margins are beveled. (Fig. 335, D, D.) Operation. — The entire length of the superficial incision outlining the flap is now deepened to the bone along the line of the retracted skin — cutting in a beveling fashion obliquely from without inward and from below upward. This mass of soft tissues is then raised from the bone, severing the attach- ments of the muscles of the great and less tuberosities. The joint is now opened by cutting directly down upon the capsule and long head of the biceps transversely against the head of the bone. The head of the bone is dis- articulated and thrust upward, and the operation completed as in Spence's method of disarticulating — that is, the head of the bone is grasped and drawn outward — an assistant guarding the tissues of the inner flap as in the opera- tion just mentioned, a long knife is inserted between the neck of the bone and the still undivided tissues upon the inner aspect and made to cut its way downward and outward on a line with the transversely curved portion of the incision connecting the upper limbs of the flap, thus severing the pectoralis major, latissimus dorsi, and teres major. Having ligated the vessels and cut the nerves short — the muscles are quilted — and the integumentary margin of the deltoid flap is sutured to the border of the short internal flap. Comment. — (1) This is the least desirable of the three methods of dis- articulation described. (2) Hemorrhage may be controlled by some form of tourniquet, or by the early ligation of the artery in the axilla. (3) An attempt may be made to save the circumflex nerve and the posterior circumflex artery — either by isolating and retracting them while incising from the skin downward in the posterior limb of the flap — or by approaching them from the anterior portion of the flap, working under the periosteum and then retracting them. INTERSCAPULO-THORACIC AMPUTATION. 383 AMPUTATION OF UPPER LIMB, TOGETHER WITH SCAPULA AND PART OF CLAVICLE, BY ANTEROINFERIOR (OR PECTORO-AXILLARY) AND POSTERO-SITERIOR (OR CERVICO-SCAPULAR) FLAPS— BERGER'S OPERATION. Description. — Consists in the removal of the upper limb, together with the scapula and the outer two-thirds of the clavicle, en masse, without dis- articulation at the shoulder-joint. Position. — Given in the steps of the operation. Landmarks. — Outline of clavicle; outline of scapula; line of shoulder- joint articulation. Operation.— (1) Subperiosteal Excision of middle third of Clavicle and double ligature and division of Subclavian Artery and Vein: — Patient on back, at edge of table; shoulders raised; arm by side. Make an incision through the periosteum to bone, over the upper surface of the clavicle, from outer border of sternomastoid to just beyond the acromioclavicular articu- lation (Fig. 341, C, C, C). The vein from the cephalic to the external jugular is hereby cut and is doubly ligated. The periosteum is raised, with curved periosteal elevator, from around the entire circumference of the middle third of the clavicle. A chain or Gigli saw is passed between bone and periosteum and the clavicle is divided at the junction of its inner and middle thirds. The outer two-thirds of the clavicle is now grasped with lion-jaw forceps and drawn outward, during which outward traction whatever periosteum may remain is now detached from its middle third. The clavicle is then sawed at the junction of the middle and outer thirds, by a chain, Gigli, or small saw. The middle third of the clavicle is thereby removed. The periosteum over the subclavius muscle and the subclavius muscle are now divided transversely, opposite the inner section of the clavicle, and are dissected up and turned outward, thereby exposing the subclavian vessels, surrounded by more or less fascia. Having divided the over- lying fascia, the subclavian vein and then the artery are exposed. Both artery and vein are doubly ligated and divided opposite the lower border of the first rib — the former being secured first (to lessen the amount of blood left in the limb). (2) Formation of Anteroinferior (or Pectoro-axillary) Flap: — Patient on back, with shoulder over edge of table; arm abducted; head to opposite side. Surgeon between arm and trunk. The incision begins at the middle of the clavicular incision — curves down- ward and outward, passing close to the outer side of the coracoid process — thence along the anterior portion of the deltoid, just external to the pectoro- deltoid groove, to the junction of the anterior axillary wall with the arm — thence across the lower border of the pectoralis major — thence transversely across the inner or axillary surface of the arm — to the lower borders of the tendons of the latissimus dorsi and teres major. Here the limb is elevated — and the incision is earned downward and inward in the groove between the vertical border of the scapula and the muscular elevation formed by the teres major and latissimus dorsi, to end over the posterior surface of the inferior angle of the scapula. This incision passes, at first, through skin and fascia, and is then deepened through the pectoral and axillary tissues — the pectoralis major being cut where its tendinous portion commences — the pectoralis minor near the coracoid process — the brachial plexus near the first rib — the latissimus dorsi in the more posterior part of the line of incision — and whatever remaining axillary tissues bind the limb are cut as encoun- tered. The shoulder is thus freed from the trunk anteriorly — and tends to 384 AMPUTATIONS. fall outward and backward. (3) Formation of the Postero-superior (or Cervico-scapular) Flap: — The patient is still supine, with shoulder over edge of table; the arm is now drawn across the chest to emphasize the scapular region. The surgeon stands to the outer side. The incision begins at the outer end of the clavicular incision, just external to the acromio-clavicular joint — passing thence backward over the spine of the scapula by the shortest route, to join the lower end of the antero-inferior flap incision over the inferior angle of the scapula. This incision at first involves only the skin and fascia, which are then well retracted along their upper part, thus exposing the trape- zius, which is now divided near its attachment to the clavicle and scapula, and thus severed from the whole limb. (4) Severing of Connections of Scapula to Trunk: — The patient lies as in the last step — and the surgeon stands to the inner side of the right and outer side of left limb. The anterior and posterior flaps are well retracted and the limb permitted to hang away from the side. The superior and vertical borders of the scapula are rendered prominent and are now freed by cutting the following muscles close to the bone, in order from above downward: omohyoid, levator anguli scapula 1 , rhomboideus minor, rhomboideus major, and serratus magnus. The upper extremity is now free from the trunk — the muscles arising from the scapula and inserted into the humerus (teres major and minor, subscapulars, supra- spinatus, and infraspinatus) are removed untouched with the limb. (5) Con- trol of Hemorrhage: — Preliminary ligation of the subclavian artery and vein control the chief hemorrhage. In forming the anterior flap, branches of the acromio-thoracic, long thoracic and subscapular are encountered. In forming the posterior flap, the muscular branches in the trapezius are met. In severing the scapula the chief bleeding occurs — the suprascapular artery is to be tied near the omohyoid as it is about to enter the supraspinous fossa — and the posterior scapular is to be tied near the upper angle of the scapula just after dividing the levator anguli scapulae. (6) Closure of the Wound: — All the nerves are divided short. Generally no sufficient redundancy of mus- cles is present to admit of quilting, it usually being difficult to approximate the edges of the wound — but, if it be possible, quilting of the muscles together with buried gut sutures should be done — to make a thicker stump-padding and to take the strain off the cutaneous sutures. The anterior and posterior flaps are brought together and sutured in one oblique line, extending from above, downward, outward, and backward. To obliterate the dead spaces which tend to form in so extensive a wound, considerable even pressure is applied in the dressings which bind the parts to the thorax. No drainage is indicated in simple cases. Comment. — (1) Sometimes the outer two-thirds of the clavicle is drawn outward and disarticulated at the acromion. (2) If the suprascapular and posterior scapular arteries are ligated through such a wound as is made in exposing the clavicle, at this stage, the chief bleeding of the whole operation will be avoided. The former is easily found. (3) One is apt to find too scanty an allowance of flap covering, which is caused by not extending the oval parts of the incisions far enough out over the shoulder. SURFACE FORM AND LANDMARKS OF TOES. 385 AMPUTATIONS AND DISARTICULATIONS OF THE LOWER EXTREMITY. SURGICAL ANATOMY OF THE TOES. Bones. — Third, second, and first Phalanges. Articulations and Ligaments. — (a) Second and Third Interphalangeal Joint: — Plantar; dorsal and two lateral ligaments. Extensor tendon rein- forces dorsal aspect of joint, (b) First and Second Interphalangeal Joint: — Same as last, (c) Metatarsophalangeal Joints: — Plantar (glenoid), dorsal, and two lateral ligaments. Extensor tendon reinforces dorsal aspect. Muscles. — See under Foot (page 397). Sheaths of Flexor Tendons. — Tendons of flexor longus digitorum and flexor brevis digitorum, in their passage along the phalanges, are bound against the bones by fibrous sheaths attached to margins of phalanges and forming osseo-aponeurotic canals lined by synovial membrane. They are strongest opposite the first and second phalanges, and weakest opposite the interphalangeal joints. Arteries. — Two dorsal digital, from dorsal interosseous and from dorsalis hallucis; two plantar from plantar digital and from princeps hallucis. Veins. — Superficial: — branches from the superficies of each toe. Deep: — accompany the digital arteries. Note — From the foot to the knee, two veins accompany each artery; from knee upward, one vein accompanies each artery, except at back of thigh and gluteal region, where there are gener- ally two. Nerves. — External saphenous; internal and external branches of musculo- cutaneous; internal branch of anterior tibial; digital branches of internal plantar; digital branches of external plantar. SURFACE FORM AND LANDMARKS OF TOES. Extensor tendons of four outer toes — the four tendons of the extensor longus digitorum, having been joined by the tendons of the extensor brevis digitorum (except that the latter muscle furnishes no tendon to the little toe) and by fibrous expansions from the interossei and lumbricales — all spread out into a broad aponeurosis, which covers the dorsum of the first phalanx and divides into three slips — the middle slip being inserted into the bases of the second phalanges of the four lesser toes — the two lateral slips, having united on the dorsum of the second phalanx, are inserted into the bases of the third phalanges of the four lesser toes. Extensor tendon of great toe — the innermost tendon of the extensor brevis digitorum is inserted into the dorsal surface of the base of the first phalanx — blending with the tendon of the extensor proprius hallucis, which is inserted into the dorsal surface of the base of the last phalanx. Flexor tendons of four outer toes — the four tendons of the flexor brevis digitorum divide opposite the base of the first phalanges (for the passage of the tendon of the flexor longus digitorum) and then unite opposite the first phalanges to form a channel for the flexor longus digitorum — then divide — and are finally inserted into the sides of the middle of the second phalanges. The four tendons of the flexor longus digitorum are inserted into the bases of the plantar surfaces of the last phalanges of the four lesser toes. 2 5 386 AMPUTATIONS. Flexor tendons of great toe — the flexor brevis hallucis is inserted into the inner and outer sides of the plantar surface of the base of the first phalanx, a sesamoid bone being present in each of its two heads of insertion. The tendon of the flexor longus hallucis is inserted into the plantar surface of the base of the last phalanx. The flexor sheaths, which are not so distinct as in the fingers, have been given under Surgical Anatomy (page 385). The first interphalangeal joint of each toe is about opposite its middle. The knuckle of each phalangeal joint is formed by the head of the proximal bone — as in the hand. The joint-line of the interphalangeal and metatarso-phalangeal articula- tions is found by flexing the distal bone at a right angle to the proximal and extending the mid-lateral axis of the proximal bone — which will pass over the joint-line. The metatarso-phalangeal joints follow, approximately, the curve of the toes and are about 2.5 cm. (1 inch) behind the webs. The metatarso-phalangeal articulation of the first and fifth toes is detectable by manipulation, and the line of the other joints then found by making a curve between them about parallel with the interdigital webs. The anterior, or glenoid, ligament occupies the plantar surface of the metatarso-phalangeal and the interphalangeal joints and is more firmly adherent to the base of the distal than to the head of the proximal bone. It is cut against the base of the former. The nail largely overlies the last phalanx. Each metatarsal has one epiphysis at its head, uniting from the eighteenth to twentieth year — that of the great toe having it at its base, and uniting at the same time. Each phalanx has one epiphysis at its base — uniting from the seventeenth to eighteenth year. GENERAL SURGICAL CONSIDERATIONS IN AMPUTATIONS AND DISARTICULATIONS ABOUT THE TOES. Many of the observations made concerning amputations and disarticula- tions about the fingers apply to corresponding regions of the toes. But operations here, except about the great toe, are apt to be very irregular pro- ceedings, largely determined by circumstances. Minimum sacrifice of parts is indicated, often amounting to mere trim- mings — but this principle is not as absolutely necessary as in the fingers. Preservation of the heads of the metatarsals increases the strength of the foot. If the base of the last phalanx be saved, all of the extensor and the deep flexor tendon (flexor longus digitorum) will be preserved. If the proximal half of the second phalanx be saved, part of the extensor and the superficial flexor (flexor brevis digitorum) tendon will be saved. Preservation of parts of the great toe is much more important than preser- vation of the four lesser toes. As the foot rests on the heel, heads of the metatarsals and inner margin of the sole, as much as possible of the anterior part of the foot and phalanges of the great toe is to be saved. It is important to save the base of the first phalanx of the great toe, owing to the number of muscles which are there inserted. If the base of the first phalanx cannot be saved, its many attached tendons should be removed as nearly subperiosteally as possible and be sutured into the tissues of the stump. SURGICAL CONSIDERATIONS IN AMPUTATIONS ABOUT TOES. 387 Except in the case of the great toe, a portion of a toe is of little or no use; and, in the case of the four outer toes, a retained portion of a toe may be drawn permanently upward and thus be pressed against. Therefore some surgeons remove the four outer toes at the metatarso-phalangeal joint, if removed at all. The flexor sheaths should be closed as in the finger operations (page 339). The flexor tendons should be so sutured as to secure their union to the stump, if it be wished to retain their action. But, except in the case of the great toe, this is much less important than in the fingers. Musculo-periosteal coverings and capsulo-periosteal coverings in these small amputations and disarticulations are, theoretically, desirable, but, practically, difficult or impossible. Cicatrices should be planned not to fall in the sole, where they would be constantly exposed to pressure. The plantar flap, therefore, is the best general type of amputation or disarticulation for the toes, bringing, as it does, the cicatrix upon the dorsum. In amputating by the plantar flap a slight downward convexity given to the transverse dorsal incision makes a better fit. In making all plantar incisions the part should be extended — and flexed while making dorsal incisions — whereby a fuller covering will be obtained. Flaps are generally formed (in the palmar flap method) by cutting directly downward in the mid-lateral aspects of the toes, but if the vertical limbs of the incisions be a little nearer the dorsal than the plantar surface, a more liberal covering will be secured. All flaps should be cut from without inward. Bones should be divided by a fine, rigid saw, or a chain or Gigli saw — and never by bone-cutting forceps. Disarticulation of the interphalangeal joints may be made from the dorsal or plantar aspect. In the former, the extensor tendon is cut from without, and then the lateral and glenoid ligaments are cut from within outward. In the latter, the glenoid ligament is cut against the base of the distal bone, and the joint opened, and then the lateral ligaments and the extensor tendon are cut from within outward. The dorsal disarticulation is preferable. In disarticulating at the metatarso-phalangeal joints, the following points are to be observed: — The joint is to be disarticulated from the dorsum. The sesamoid bones are to be left in with the head of the metatarsal. Ample covering is necessary for the disproportionately large head of the metatarsal. The cicatrix should be away from the plantar surface (where it would be exposed to pressure). Owing to the distance of the joint-line above the web, it would be difficult to disarticulate from the plantar aspect. The heads of the metatarsals should not be removed. Great care is necessary to hug the bone in freeing up flaps, in order to avoid the digital arteries, which run near the bone and are the sole supply to the coverings. These vessels should run to the end of the flaps. Ligatures should be catgut — and sutures silk, or silkworm-gut for the skin. Sutures for quilting muscles or tendons, or for closing sheaths, should be of catgut. Drainage is generally unnecessary. In all amputations or disarticulations, the stump should be snugly dressed and bandaged against an adjoining toe as a splint. The stump should be kept out from under the bed-clothes while healing 388 AMPUTATIONS. —and the patient frequently lie upon the side to favor drainage, where in- dicated. Note. — The indications for amputations through the various parts of the lower extremity correspond, in a general way, with those for amputating through the corresponding parts of the upper extremity. AMPUTATION THROUGH LAST PHALANX OF TOES, IN GENERAL. Best Method. ■■ -Plantar Flap. Other Method.— Oblique Circular. V jtO Fig. 342. — Dorsal View of the Bones or the Foot, Showing the Intertarsal, Tarso- metatarsal, AND INTERMETATARSAL ARTICULATIONS. Fig- 343- — Plantar View of the Bones of the Foot, Showing the Intertarsal, Tarso- metatarsal, AND INTERMETATARSAL ARTICULATIONS. AMPUTATION THROUGH LAST PHALANX OF TOES BV PLANTAR FLAP. Description. — Hardly feasible as a definite operation — amounting, generallv, to trimming of the parts — except in the case of the great toe, which is the operation here described. Position.— (For all amputations about the toes) : —Patient supine, DISARTICULATION AT SECOND INTERPHALAXGEAL JOINT. 389 with foot bevond end of table; toes extended during plantar incisions, and flexed during dorsal incisions. Assistant stands in front of surgeon, steadying foot with both hands, the fingers of which, at the same time, draw aside and out of the way, the adjacent toes. Surgeon grasps toe to be removed with thumb and forefinger of left hand — with his thumb on the dorsum of the toe during dorsal incisions; and on the plantar surface of toe during plantar incisions — the index-finger occupying the opposite aspect in each case. His hand will be supinated during dorsal, and pronated during plantar incisions. Landmarks. — Saw-line, which will lie between base of nail and inter- phalangeal joint above. Incision. — The vertical portion begins opposite the saw-line, in the mid-lateral aspect of the toe, or a little nearer the dorsum (which furnishes a fuller plantar flap) — passes straight down that aspect and around the pulp of the toe to the corresponding point on the opposite side. The trans- verse dorsal incision connects the upper ends of the limbs, with slight down- ward convexity (Fig. 349, A, for principle). Operation. — Having incised skin and fascia, these incisions are deepened to the bone — the soft parts are separated up to the saw-line and retracted. The tip of the phalanx is grasped with bone-holding forceps and steadied, while the bone is sawed. If the base of the last phalanges be left, the inser- tion of the flexor and extensor tendons will be preserved. Arteries rarely have to be tied — except in the case of the great toe. DISARTICULATION AT SECOND INTERPHALANGEAL JOINT, IN GENERAL. Best Method.— Plantar Flap. Other Method. — Oblique Circular. DISARTICULATION AT SECOND INTERPHALANGEAL JOINT OF TOES BV PLANTAR FLAP. Description. — A U-shaped flap is raised from the plantar aspect of the toe and approximated to the dorsal wound. Position. — As for the last phalanx (page 388). Landmarks. — Second interphalangeal joint-line. Incisions. — The vertical portion of the incision begins opposite the joint-line, in the mid-lateral aspect, or a little nearer the dorsum — passes directly down this aspect of the toe a distance sufficient to furnish a covering of ii diameters of the toe at the saw-line — then rounds bluntly across the plantar surface and is continued up to a corresponding point on the opposite side. The transverse incision connects the upper limbs of the flap by a slight! v rounded convex line (Fig. 349, A). Operation. — Deepen the vertical portion and the rounded end of the flap to the bone — dissect up the soft parts to the joint-line, cutting the glenoid ligament and flexor tendon against the base of the last phalanx, thus opening the joint. Forcibly hex the joint and deepen the transverse incision to and into the joint, entering from the dorsum and cutting the lateral ligaments 39° AMPUTATIONS. from within outward. Two dorsal and two plantar digital arteries may require ligation. Close the flexor sheath with catgut — and, in the great toe, include the flexor tendon. Suture the plantar flap to the transverse dorsal wound. AMPUTATION THROUGH SECOND PHALANX OF TOES, IN GENERAL. Best Method.— Plantar Flap. Other Method. — Oblique Circular. AMPUTATION THROUGH SECOND PHALANX OF TOES BY PLANTAR FLAP. Description. — The manner of performing this operation is sufficiently described in the amputation through the last phalanx (page 388), and the dimensions of the flap, under the disarticulation at the second interphalangeal joint (page 389). DISARTICULATION AT FIRST INTERPHALANGEAL JOINTS OF TOES, IN GENERAL. Best Method.— Oval Method. Other Methods. — Oblique Circular. Plantar Flap. DISARTICULATION AT FIRST INTERPHALANGEAL JOINTS OF TOES BY OVAL METHOD. Description. — Queue of incision over dorsal aspect of joint — the limbs of the oval encircling the toe beyond the first interphalangeal jointdine. Position. — As in amputating through the last phalanx. Landmarks. — First Interphalangeal joint. Incision. — The queue of the oval begins just above the head of the first phalanx, on its mid-dorsal aspect — passes vertically downward over the head of the phalanx, and continues down to near the middle of the first phalanx — where the two corresponding limbs diverge to encircle the second phalanx and meet in the middle of its plantar aspect (Fig. 344, C). Operation. — Deepen the dorsal incision to the extensor tendon. Extend the toe and deepen the oval to the bone, cutting the flexor tendons trans- versely. Dissect up the soft parts upon the plantar and lateral aspects. Divide the glenoid (anterior) ligament by cutting against the base of the second phalanx and opening the joint. Divide the lateral ligaments from wdthin outward. Draw upon the toe and cut the extensor tendon high up. Two plantar and two dorsal digital arteries are cut — the former may require ligation. Close the flexor sheath. Suture the wound vertically. The cicatrix will be vertical and dorso-terminal. Comment. — The head of the first phalanx may be removed, especially of the second and third toes — as it is large and mav be in the way. AMPUTATION THROUGH FIRST PHALANGES OF TOES. 39 1 Fig. 344.— Amputations about the Toes and Foot :— A. At interphalangeal joint of great toe, by a single internal flap: B, At first phalangeal joint, by equal lateral flaps ; C, At first phalangeal joint, by oval method ; D, Through second phalanx, by oblique circular ; E, At first phalangeal joint of little toe, by single external flap ; F, At metatarso-phalangeal joint of little toe, by externo-dorsal flap; G, At metatarso-phalangeal joint, by oval method ; H. At metatarso-phalangeal joint of great toe, by interno-plantar flap ; I, Of two inner toes at tarso-metatarsal joints, by racket method ; J, Of toe, with its entire metatarsal at tarso-metatarsal joint, by racket method. AMPUTATION THROUGH FIRST PHALANGES OF TOES, IN GENERAL. Best Methods. — Oval Method. Circular Method. Other Methods. — Oblique Circular. Equal Lateral. Single External Flap. Comparison. — The oval method allows readier access to the saw-line and the freeing of the soft parts to that line. The scar is dorso-terminal. 392 AMPUTATIONS. The circular furnishes less easy approach, but leaves a smaller cicatrix, which, however, is terminal. AMPUTATION THROUGH FIRST PHALANX OF TOES BY OVAL METHOD. Description. — The operation is exactly similar to that for disarticulation at the first interphalangeal joint just described — except that the queue begins just above the future saw-line, and the oval extends down the toe a distance that will make the covering furnished by the two lateral aspects of the oval about equal to i^ diameters of the toe at the saw-line. AMPUTATION THROUGH FIRST PHALANX OF TOES BY CIRCULAR METHOD. Description. — The covering is furnished by a circular division of all the soft parts down to the bone, with a vertical suturing of the covering. Position — Landmarks. — As for the toes in general. Incision. — A circular incision is made through skin and fascia around the toe at a distance below the saw-line equal to three-fourths of the diameter of the toe at the saw-line (to furnish a covering of i| diameters) (Fig. 350, A, for principle, disregarding obliquity of incision). Operation. — Upon the level of the retracted integuments, the remaining soft parts are circularly divided to the bone — flexing the toe while cutting the dorsal, and extending it while cutting the plantar aspect. These are now retracted to the saw-line and the bone severed. The arteries divided are the same as in the last operation — and the flexor sheath is treated in the same manner. The cicatrix will be vertical and terminal. DISARTICULATION AT METATARSO-PHALANGEAL JOINTS OF TOES. IN GENERAL. Best Methods. — Oval Method — best for the inside toes (second, third, and fourth). Interno-Plantar Flap — best for great toe. Externo-Dorsal Flap — best for little toe. Short Dorsal and Plantar Flaps — best for toes en masse at the metatarso-phalangeal joints. Other Methods. — Lateral Flaps. Internal Flap — for great toe. Ex- ternal Flap — for little toe. Oval Flap — for great or little toe. Irregular Circular, with U-shaped flap for Great Toe (Dubrueil's method) — for toes en masse at the metatarso-phalangeal joints. DISARTICULATION OF SECOND, THIRD, OR FOURTH TOES AT META- TARSO-PHALANGEAL JOINT BY OVAL METHOD. Description. — Same, in principle, as disarticulation at first interphalangeal joint by the oval method. Position. — As for the toes in general (page 388). METATARSOPHALANGEAL DISARTICULATION OF GREAT TOE. 393 Landmarks. — Metatarsophalangeal joint. Incision. — The queue of the incision begins just above the head of the metatarsal, over its mid-dorsal aspect — passes downward in the median line until past the base of the first phalanx — the limbs of the oval now gradu- ally diverge to pass obliquely downward over the lateral aspects of the toes and cross the plantar surface transversely, meeting just in front of the line of the webs (Fig. 344, G). Operation. — The vertical portion of the incision is deepened to the extensor tendon — the lateral portions are cut to the bone — the toe is extended and the plantar aspect cut transversely to the bone, thereby severing the flexor tendons high up. The soft parts are freed, partly by retraction and partly by disseccion, from the upper portion of the first phalanx to the joint- line, which lies about 2.5 cm. (1 inch) above the web. The glenoid ligament is cut transversely against the base of the first phalanx and the joint opened. Disarticulation may be completed from below, but more conveniently by severing the extensor tendon and disarticulating from the dorsum, cutting the lateral ligaments from within outward, as the toe is rotated from side to side and disarticulation completed. Two dorsal and two plantar digital arteries are cut. The flexor sheath should be closed. The wound is sutured vertically — the scar becoming dorso-terminal. DISARTICULATION OF GREAT TOE AT METATARSOPHALANGEAL JOINT BY IXTERXO-FLAXTAR FLAP — FARABEUF. Description. — A modification of the oval method, whereby the covering is gotten from the internal and plantar aspects of the great toe, and the cica- trix is brought well over to lie obliquely from the upper angle of the inter- digital web to the head of the metatarsal, and thus well removed from internal and terminal pressure. Position. — As for the toes in general (page 388). Landmarks. — Metatarso-phalangeal joint-line; interdigital web. Incision. — Begins over the metatarso-phalangeal joint, at the junction of the dorsal and internal surfaces — passes vertically down the toe, in the line represented by the junction of these two surfaces (parallel with the extensor tendon), nearly to the head of the first phalanx — curves thence downward over the inner surface to the junction of the internal and plantar surfaces — passes thence obliquely across the plantar surface to the angle of the interdigital web — thence runs directly over the external and dorsal surfaces of the toe to the point of beginning, by the shortest route (Fig. 344, H). Operation. — This incision is now deepened to the bone in the same order as made, extending the toe while cutting the plantar and flexing while cutting the dorsal tissues. Free the soft parts up to the joint-line. Sever the glenoid ligament against the base of the first phalanx, thus opening the joint, and leaving the glenoid ligament and sesamoid bones in the stump. Divide the lateral ligaments and the extensor tendon. Two plantar and two dorsal digital arteries are cut and will probably require ligation. Close the flexor sheath. Include the cut flexor and extensor tendons in the tissues of the stump. Suture the internal and plantar portions of the oval to the straight incision from the interdigital web to the head of the metatarsal, which will represent the line of the cicatrix. 394 AMPUTATIONS. Comment. — If the vertical portion of the oval be placed directly over the mid-dorsal aspect (as in the corresponding operation upon the index- finger, page 336) a fuller covering will be gotten and the cicatrix will be more certainly protected. DISARTICULATION OF LITTLE TOE AT METATARSOPHALANGEAL JOINT BV EXTERNO-DORSAL FLAP— FARABEUF. Description. — This is the reverse of the last operation — a modification of the oval method, whereby the covering is gotten from the external and dorsal aspects of the little toe — and the cicatrix brought well over to lie obliquely Fig- 345- — Amputations about the Foot: — A, Disarticulation of the great toe at the tarsometatarsal joint by a curvilinear racket incision; B, Disarticulation of the little toe at the tarsometatarsal joint by a curvilinear racket incision; C, Amputation of a toe with part of its metatarsal by a racket incision. from the upper angle of the interdigital web to the head of the metatarsal — and thus well removed from external and terminal pressure. Position — Landmarks. — As in the last operation. Incision. — Begins over dorsal aspect of metatarso-phalangeal joint, just METATARSOPHALANGEAL DISARTICULATION EN MASSE. 395 to inner side of extensor tendon — passes vertically down the inner margin of the tendon to the end of the first phalanx — curves thence downward and outward over the external aspect of the toe — thence obliquely across the plantar surface to the angle of the interdigital web — thence along the internal aspect of the toe to the point of beginning, by the shortest route (Fig. 344, F). Operation. — The steps of the operation are exactly similar to those of the disarticulation of the metatarso-phalangeal joint of the great toe. The dorsal, external and part of the plantar portion of the oval are sutured to the straight incision from the metatarso-phalangeal joint to the interdigital web, which will represent the line of cicatrix and be out of the way of pressure. DISARTICULATION OF TWO ADJOINING TOES AT METATARSO- PHALANGEAL JOINT BV OVAL METHOD. Description. — Same as the disarticulation of a single toe at the meta- tarso-phalangeal joint (page 392) — except that the queue of the oval is placed between the two toes, beginning a little higher above the metatarso-phalangeal joint-line — the two limbs of the oval diverging to encircle the outer and inner toes and meet at the margin of the web between the toes. Each toe is then freed up to the metatarso-phalangeal joint and disarticulated. The wound is sutured as a vertical cicatrix. DISARTICULATION OF ALL TOES EN MASSE AT METATARSO- PHALANGEAL JOINT BY EQUAL SHORT DORSAL AND PLANTAR FLAPS. Description. — The covering is gotten equally from the dorsal and plantar surfaces and the scar is terminal. Position. — Patient supine; foot over edge of table. Surgeon grasps toes with left hand, with thumb on dorsum and fingers on plantar surface for dorsal incisions — and thumb on plantar and fingers on dorsum for plantar incisions — manipulating the foot as indicated. After the incisions are made, an assistant takes the toes and the surgeon manipulates the flaps. The surgeon stands for the dorsal and sits for the plantar incisions. Incisions. — (Supposing the left foot to be operated upon) — the dorsal incision (with foot extended and toes flexed) begins at the mid-lateral aspect of the metatarso-phalangeal joint of the great toe — passes vertically down the inner margin of the foot to the middle of the first phalanx — thence rounds broadly on to the dorsum of the foot and follows the line of the web, dipping in between the toes as they are separated, until the little toe is reached, when the incision again rounds broadly into the outer aspect of the foot and passes vertically up in the mid-lateral aspect to the metatarso-phalangeal joint. The plantar incision (with foot flexed and toes extended) passes transversely across the plantar surface of the foot, connecting the distal ends of the vertical limbs of the dorsal incision — beginning at a point where the vertical limb begins to round onto the dorsum, the plantar incision rounds onto the plantar surface at the middle of the first phalanx of the great toe, and thence follows the line of the web and creases of the toes, dipping in between the toes as they 396 AMPUTATIONS. are separated, until the little toe is reached, when the incision rounds into the outer aspect and joins the dorsal incision at a point where the outer vertical limb began to round onto the dorsum (Fig. 346, A, A). Operation. — The dorsal incision is deepened to the extensor tendons Fig. 346.— Disarticulations about the Foot:— A, A. Of all the toes at metatarsophalangeal joints, by equal short dorsal and plantar flaps : B. B, Of all the toes at tarso-metatarsal joints, by short dorsal and long plantar flaps (Lisfranc"s operation). and freed half-way back to the joint-line, when the extensor tendons are cut transversely, each toe being previously forcibly flexed in turn. The flap of entire soft parts is then dissected back to the metatarso-phalangeal joint-line. The plantar incision is now deepened to the flexor tendons and freed half-way back to the joint-line, when the flexor tendons are cut transversely, each toe being previously forcibly extended in turn. The flap of entire soft parts is then dissected back to the metatarso-phalangeal joint-line. Both flaps are well retracted to the general joint-line — the toes are flexed and the joints are opened from the dorsum and the lateral ligaments cut from within out- ward. The toes are then extended and the plantar ligaments are cut from the plantar surface, preserving the glenoid ligaments. The disarticulation SURGICAL ANATOMY OF THE FOOT. 397 of each toe is thus completed in turn. The flexor sheaths are closed. Two plantar and two dorsal digital arteries for each toe are cut — the latter may not require ligature. The dorsal and plantar flaps are sutured in one lateral, terminal line. Comment. — It is difficult to get covering for the large head of the first metatarsal — special care is, therefore, given to procuring this covering by keeping well in the mid-lateral aspect of the inner surface of the great toe until quite to, or beyond, the middle of the first phalanx, before rounding into the dorsal and plantar surfaces. SURGICAL ANATOMY OF THE FOOT. Bones. — Five metatarsals; seven tarsals (astragalus; os calcis; scaphoid; internal cuneiform; middle cuneiform; external cuneiform; cuboid). Articulations and Ligaments. — (A) Metatarsophalangeal Articula- tions: — See Surgical Anatomy of Toes, page 333. (B) Articulation of Meta- tarsals with each other: — Dorsal, plantar, transverse metatarsal, interosseous ligaments, and synovial membrane. (C) Articulations of Metatarsals with Tarsals: — dorsal, plantar, and interosseous ligaments, and synovial mem- brane. (D) Articulation of External Cuneiform and Cuboid: — dorsal, plantar, and interosseous ligaments, and synovial membrane. (E) Articu- lations of Internal, Middle, External Cuneiform bones with each other: — dorsal, plantar, and interosseous ligaments, and synovial membrane. (F) Articulation of Scaphoid and Cuboid: — dorsal, plantar, and interosseous ligaments, and synovial membrane. (G) Articulation of Scaphoid and three Cuneiform Bones: — dorsal and plantar ligaments, and synovial mem- brane. (H) Articulation of Astragalus and Scaphoid: — Superior astragalo- scaphoid ligament, and synovial membrane. (I) Articulation of Os Calcis and Scaphoid: — superior (or external) and inferior (or internal) calcaneo- scaphoid ligaments, and synovial membrane. (J) Articulation of Os Calcis and Cuboid: — (a) Dorsal — superior and internal (interosseous) ligaments; (b) Palmar — long calcaneocuboid (long plantar) and short calcaneocuboid (short plantar) ligaments. And synovial membrane. (K) Articulation ot Os Calcis and Astragalus : — external, internal, and posterior calcaneo-astraga- loid, and interosseous ligaments, and synovial membrane. (L) Articulation of Tarsus with Bones of Leg: — See Surgical Anatomy of the Ankle, page 358. Anterior Annular Ligament. — Consists of two portions: — (a) Vertical (Superior) Portion: — Binds down extensor tendons to tibia and fibula. Con- tinuous with fascia of leg above, and extending from anterior border of tibia to anterior border of subcutaneous surface of fibula. Contains synovial sheath for tendon of tibialis anticus. Following structures pass under it- extensor proprius hallucis, extensor longus digitorum, peroneus tertius, anterior tibial vessels and nerve, (b) Horizontal (Inferior, or Y-shaped) Portion: — Binds down extensor tendons to tarsus. Is connected with vertical portion. Attached, externally, to superior surface of os calcis, — anteriorly, to depression for interosseous ligament. It passes upward and inward in a superficial band (which runs in front of the peroneus tertius. extensor longus digitorum, and part of origin of extensor brevis digitorum), and a deep band (which runs behind these muscles). Having formed this loop containing the above muscles, surrounded by synovial membrane, these two bands 398 AMPUTATIONS. unite and redivide into two limbs. The Upper Limb passes upward and inward tu the internal malleolus — containing tibialis amicus muscle and its synovial sheath in its structure, but passing over extensor proprius hallucis and anterior tibial vessels and nerve. The Lower Limb passes downward and inward to the scaphoid and internal cuneiform — running over extensor proprius pollicis, tibialis anticus, and anterior tibial vessels and nerve. Internal Annular Ligament. — Extends from inner malleolus above, to internal border of os calcis below, converting the grooves of this region into four canals, each lined by separated synovial membrane. The canals transmit, from within outward — tibialis posticus — flexor longus digitorum — posterior tibial vessels and nerve — flexor longus hallucis. It is continuous, above, with deep fascia of leg, and, below, with plantar fascia and origin of abductor hallucis. External Annular Ligament. — Extends from extremity of external malleolus to outer surface of os calcis. Binds down and transmits tendons of peroneus longus and brevis beneath the outer ankle, in one synovial sheath. Plantar Fascia. — (a) Central Portion: — Arises from internal tubercle of os calcis, posterior to origin of flexor brevis digitorum — divides, near heads of metatarsals, into processes for each of five toes — which again sub- divide, opposite metatarso-phalangeal joints, into superficial and deep por- tions. The superficial part is inserted into the transverse sulcus between sole and toes. The deep part redivides into two slips — which blend with flexor tendons and sheaths and transverse metatarsal ligament. Two vertical intermuscular septa are sent up by central portion — separating middle from external and from internal plantar groups of muscles, (b) Outer Lateral Portion : — From os calcis to base of fifth metatarsal — covering inferior surface of abductor minimi digiti — and continuous with central and dorsal fascia, (c) Inner Lateral Portion: — From internal annular ligament — covering abductor hallucis — and continuous with central and dorsal fascia. Muscles. — (a) Dorsal Region: — Extensor brevis digitorum; and muscles from leg (page 416). (b) Plantar Region: — First Layer — abductor hallucis, flexor brevis digitorum, abductor minimi digiti; — Second Layer — flexor ac- cessorius, four lumbricales; — Third Layer — flexor brevis hallucis, abductor obliquus hallucis, abductor transversus hallucis, flexor brevis minimi digiti; — Fourth Layer — four dorsal interossei, three plantar interossei. And muscles from leg (page 416). Synovial Membranes of Tarsal and Metatarsal Joints. — Synovial membranes exist for following joints; — posterior calcaneo-astragaloid joint; — anterior calcaneo-astragaloid and astragalo-navicular joints; — calcaneo- cuboid joint; — articulation of navicular with three cuneiforms, three cunei- forms with each other, external cuneiform with cuboid, middle and external cuneiform with bases of second and third metatarsals, lateral surfaces of second, third, and fourth metatarsals with each other; — internal cuneiform with metatarsal of great toe; — articulation of cuboid with fourth and fifth metatarsals; — (and sometimes the articulation of navicular with cuboid). Arteries. — Dorsalis pedis branch of anterior tibial, and following branches — external tarsal; internal tarsal; metatarsal and its three dorsal interosseous branches, with the latter's three posterior and three anterior perforating branches; dorsalis hallucis (or first dorsal interosseous); communicating (or plantar digital). Posterior tibial and following branches — anterior peroneal, posterior peroneal and external calcaneal branches of peroneal; internal calcaneal branch of posterior tibial; internal plantar branch of posterioi SURGICAL ANATOMY OF THE FOOT. 399 tibial; external plantar branch of posterior tibial and following branches, three posterior perforating (between plantar arch and interosseous), four plantar digital, three anterior perforating (between digital and interosseous), princeps hallucis (fifth plantar digital). Veins. — Superficial — tributaries of internal (long) saphenous; tributaries of external (short) saphenous. Deep — two venae comites for each artery. Nerves. — (a) From Lumbar Plexus — internal saphenous, (b) From Sacral Plexus — following from great sciatic; — external (short) saphenous — posterior tibial and plantar cutaneous branch — internal plantar with cutane- ous, muscular, articular, and four digital branches — external plantar, with superficial and deep (or muscular) branches — anterior tibial, with external (or tarsal) branch and its three interosseous; internal branch (continuation of anterior tibial) and its interosseous branch ;— and internal and external branches of musculocutaneous. Bursae About Foot. — These are variable — the following are generally present — (a) Above, or beneath, tendon of extensor proprius hallucis, over instep, — (b) Between tendon of extensor longus digitorum and projecting end of astragalus (sometimes communicating with joint of head of astragalus), — (c) Between tendo Achillis and calcaneum, — And others may occur over any bony prominence. SURFACE FORM AND LANDMARKS OF FOOT. Bony landmarks of dorsum — head of astragalus is felt on extension of foot, in front of ankle-joint. Bony landmarks of inner aspect of foot — internal tuberosity of os calcis; sustentaculum tali (lesser process of os calcis), 2.5 cm., or 1 inch, below internal malleolus; tuberosity of scaphoid (2.5 to 3 cm., or 1 to i| inches, in front of internal malleolus) ; internal cuneiform (but slightly) ; base of first metatarsal (obscurely); shaft of first metatarsal; head of first metatarsal; base of first phalanx of great toe; internal sesamoid bone. Bony landmarks of outer aspect of foot — outer tuberosity of os calcis; greater part of outer surface and anterior end of os calcis; peroneal tubercle (when present) 2.5 cm., or 1 inch, below external malleolus; base of fifth metatarsal; shaft of fifth metatarsal; head of fifth metatarsal; base of first phalanx of little toe. Bony landmarks of plantar aspect of foot — inferior surface of os calcis; heads of metatarsals. Landmarks of medio-tarsal articulation — the joint-line runs transversely across the foot from the astragalo-scaphoid articulation on the inner side, to the calcaneo-cuboid articulation on the outer side. The astragalo-scaphoid joint lies just posterior to the prominent tuberosity of the scaphoid (forcibly extend the foot, when the interval between the tuberosity of the scaphoid and head of the astragalus will be evident). The calcaneo-cuboid joint lies midway between the external malleolus and the prominent base of the fifth metatarsal. Landmarks of the tarso-metatarsal articulation — the cubo-metatarsal joint (on the outer side) is found on a line with the base of the prominent fifth metatarsal, and this serves as a guide to the remaining joints — the line of which runs obliquely forward toward the inner side of the foot, to a point about 2.5 cm., or 1 inch (extremes 3.8 to 4.5 cm., or 1^ to if inches), below 400 AMPUTATIONS. the posterior margin of the tuberosity of the scaphoid. Practically, the articulations of the fifth, fourth, third, and first metatarsals are in one line, while the line of the articulation of the second metatarsal with the middle Fig. 347. — Lines of Disarticulations about the Foot: — A, A, Metatarsophalangeal disarticulation; B, B, Tarsometatarsal disarticulation (Lisfranc's operation); C, C, Anterior intertarsal amputation (between the cuneiforms and scaphoid, with transverse section of the cuboid — the Jaeger-Bona, or Forbes' operation); D, D, Posterior intertarsal or mediotarsal disarticulation (Chopart's operation); E, E, Disarticulation at the ankle-joint. Note: — Pirogoff's intercalcaneal osteoplastic amputation, with section of the tibia and fibula, and also the sub- astragaloid disarticulation are not shown here. cuneiform is from 7 mm. to 1.3 cm. (J to ^ inch) above this oblique line. The tarso-metatarsal articulation of the great toe can sometimes be felt as a SURGICAL CONSIDERATIONS IN FOOT AMPUTATIONS. 401 depression 3.8 to 4.5 cm. (i£ to if inches) anterior to the posterior margin of the tuberosity of the scaphoid, by pressure here while manipulating the toe — which would give an inner landmark to be used with the base of the fifth metatarsal on the outer aspect. Landmarks of the metatarso-phalangeal articulations — about 2.5 cm. (1 inch) behind the webs of the corresponding toes. Muscles and tendons more or less influencing surface form upon the dorsum of the foot, from within outward — tibialis anticus, extensor proprius hallucis, extensor longus digitorum, peroneus tertius — and, beneath these, extensor brevis digitorum and dorsal interossei. Muscles on sole of foot influencing surface form — abductor minimi digiti, abductor hallucis, flexor brevis digitorum. GENERAL SURGICAL CONSIDERATIONS IN AMPUTATIONS ABOUT THE FOOT. Remove as little as possible of the metatarsals of the great and little toes as they largely support the weight of the body. Amputation of the toe, except the great toe, with part or all of its meta- tarsal, is of very little practical applicability. ' Scars should be kept from the plantar, internal, and external aspects of the foot. They should be at the end of the stump or dorsal. Plantar covering is the best form to provide. In removing the metatarsal bones entirely, or in part, it is well to adopt the subperiosteal method as far as possible. There is an increasing tendency to regard the foot as a whole and to amputate regardless of joints. Sutures should remain in the thick, hard skin of the sole extra long. Temporary drainage is indicated when large joint-surfaces are opened up. Stumps should remain out from under the bed-covering when dressed. Patients should lie part of the time on their side, or flex the knee, to allow of drainage from the angles of wounds, if any fluid accumulate. If drainage be necessary, drain with two short tubes in either end of the wound. Amputation through the metatarsus is preferable to tarso-metatarsal disarticulation, for, in the former, attachment of all the important muscles of the foot and all its movements are retained. Disarticulation at the tarso-metatarsal joints (Lisfranc's operation) gives an excellent stump. Disarticulation at the medio-tarsal joints (Chopart's operation) gives a not altogether satisfactory result. Subastragaloid disarticulation gives a very good result, furnishing a long limb with ankle-movement. Syme's amputation (disarticulation at the ankle-joint) is generally con- sidered preferable to either Chopart's or Pirogoff's operation. In Lisfranc's and Chopart's operations the unopposed action of the calf muscles may permanently raise the heel. AMPUTATION OF TOES WITH PART OF THEIR METATARSALS. The amputation of the toes with part of their metatarsals is so similar, in all essential details, to disarticulation of the toes with their entire meta- 26 402 AMPUTATIONS. tarsals that the former will not be separately given (as was done in the case of the fingers). The best method of removing any of the toes with part of their metatarsal, whether an inside toe or the great or little toe, is by the racket method (see pages 404-406). The best method for the removal of two or three contiguous toes with parts of their metatarsals is by the oval operation (see page 407). The best methods, as well as other methods for these partial operations, are the same as for the entire operations — and will be given at the above references. The practical differences between the partial and complete operations are — that the incision begins, in the former, just above the saw-line, instead of just above the tarso-metatarsal joint-line — and, instead of disarticulating the proximal end of the bone, it is sawed with a Gigli or chain saw. The amputation of all the toes with parts of their metatarsals will be given. AMPUTATION OF ALL THE TOES THROUGH THE METATARSUS BY SHORT DORSAL AND LONG PLANTAR FLAPS (METATARSAL AMPUTATION). Description. — The height at which the amputation will be done will depend upon the nature of the cause and condition of the parts. The opera- tion resembles Lisfranc's disarticulation at the tarso-metatarsal joint. Position. — Patient supine; foot over edge of table. Surgeon opposite foot, standing while operating on dorsum, sitting while working upon plantar aspect — steadying the toes with his left fingers during the incisions, while assistant holds ankle; — and, as soon as incisions are made, assistant takes the toes, while the surgeon grasps the flaps with his left hand. Landmarks. — Saw-line (which is oblique, to be parallel with the ends of the metatarsals — its inner end being more anteriorly placed than its outer — the line running about parallel with the webs) ; interdigital webs. Incisions. — Plantar incision (supposing the metatarsals to be divided at their middle, in the case of the left foot) begins at the mid-lateral aspect of the inner side of the foot and just behind the saw-line — passes vertically down this side of the foot to the level of the crease between the sole and plantar surface of the great toe — thence rounds broadly into the sole and sweeps across the plantar aspect just behind and parallel with the web, to the crease between the sole and little toe — whence it rounds broadly into the mid-lateral aspect of the outer side of the foot and passes straight upward to just beyond the saw line. Dorsal incision is made parallel with the plantar incision, and joins the vertical portion of that incision about 2.5 cm. (1 inch) from their upper ends, rounding onto the dorsum (that is, the dorsal flap is about 2.5 cm., 1 inch long). The foot is flexed on the leg while the plantar incision is made and extended while the dorsal incision is made (Fig. 348, A, A). Operation. — The plantar incision is first deepened to the flexor tendons, is then dissected up a short distance and the flexor tendons divided trans- verselv while the foot is forcibly flexed on the leg and toes extended on foot — thence upward to the saw-line, all soft parts down to the bone being raised in the plantar flap. The dorsal incision is now deepened to the extensor tendons, and dissected up a short way, when these tendons are divided trans- verselv while the foot is forcibly extended on the leg and the toes flexed on the foot — thence upward to saw-line, all soft parts down to the bone being raised in the dorsal flap. Both flaps are now retracted — the bones freed TARSOMETATARSAL DISARTICULATIONS. 403 of their interossei muscles — and each bone separately sawed with a fine saw. The following arteries are tied — six plantar digital (upon contiguous sides of the toes, and outer side of the little and inner side of the great toes), second, third, and fourth dorsal interossei, and first dorsal interosseous, or its three dorsal digital branches. The muscles are quilted, those of the dorsal to those of the plantar aspect — and the integumentary margins of the dorsal Fig. 348.— Amputations about the Foot : — A, A. Amputation of all the toes through the meta- tarsus, by short dorsal and long plantar flaps (metatarsal amputation) ; B, B, Disarticulation of an- terior part of foot at medio-tarsal joints, by short dorsal and long plantar flaps (Chopart's operation). and plantar flaps united in a transverse line. The stump is supported upon a splint. Comment. — If the division of the metatarsus is made nearer its base, the flaps will be proportionately shorter. The flaps may also be made of equal length, or otherwise planned — according to available tissue. DISARTICULATION OF TOES WITH THEIR ENTIRE METATARSALS. Best Methods. — Racket — toes in general. Racket, with or without an additional transverse incision at upper end of queue — for great or little toe. 4 04 AMPUTATIONS. Short Dorsal and Long Plantar Flaps (Lisfranc's Operation) — for the toes en masse. Short Dorsal and Long Plantar Flaps, with sawing off the end of the internal cuneiform (Hey's Operation) — for the toes en masse. Other Methods. — Internal Flap — for great toe. External Flap — for little toe. Equal Plantar and Dorsal Flaps — for the toes en masse. Long Plantar Flap — for the toes en masse. DISARTICULATION OF TOE WITH ITS ENTIRE METATARSAL BY RACKET METHOD. Description. — The coverings are gotten from the lateral and plantar aspects, and the cicatrix is vertical and dorso-terminal. Position. — As in the metatarsal amputation, page 402. Landmarks. — Tarso-metatarsal joint; interdigital web. Incision. — Begins just above the tarso-metatarsal joint, in the mid- dorsal aspect — passes vertically down in the median line to the head of the metatarsal — thence the two limbs of the oval diverge — the outer limb running downward across the outer aspect of the toe to the web — the inner limb across the inner aspect to the web — the two meeting in the digito-plantar crease (which about corresponds to the center of the first phalanx) (Fig. 344, J)- Operation. — Deepen the vertical incision, dividing the extensor tendons as high up as encountered, while the toe is flexed. Deepen the oval incision to the bone, upon the lateral and plantar aspects, extending the toe while severing the flexor tendons transversely. Free the soft parts along the dorsum and lateral surfaces, with a periosteal elevator, hugging the bone closely. Forcibly extend the toe and its metatarsal and free the plantar surface as far as possible. Sever, from the dorsum, the ligaments binding the metatarsal to the tarsus and to the adjacent metatarsals, while the toe is being manipu- lated and the ligaments are put upon the stretch — thus completing the dis- articulation. Divide the flexor tendons high up and close the sheaths. Two dorsal and two plantar digital arteries are cut and are to be tied. Suture the wound in one vertical line. Comment. — (1) By hugging the bone very closely and guarding the point of the knife while disarticulating, minimum damage is done to the tissues of the sole of the foot. (2) Disarticulation of the second toe from the tarsus and adjacent metatarsals is somewhat difficult (see Lisfranc's operation). DISARTICULATION OF GREAT TOE WITH ITS ENTIRE METATARSAL BY RACKET METHOD. Description — Landmarks. — As in the last operation. Incision. — Begins just above the tarso-metatarsal joint, at its dorso- internal aspect — passes vertically downward along the outer margin of the extensor tendon to just beyond the center of the metatarsal — thence the two limbs of the oval diverge — the outer limb passing across the dorso-external aspect of the toe to the web — the inner limb passing across the dorso-internal aspect to the plantar surface at a point opposite the web — the two limbs meeting in the digito-plantar crease. If needed for purpose of exposing the joint more readily, an additional transverse incision may be added to the upper end of the vertical incision, running as far as thought necessary directly inward parallel to the tarso-metatarsal joint (Fig. 349, B). Operation. — Deepen the vertical incision, exposing and dividing the TARSOMETATARSAL DISARTICULATION OF GREAT TOE. 405 tendons of the extensor proprius and brevis hallucis near the tarso-metatarsal joint. Deepen the limbs of the oval, cutting to the bone along the lateral and plantar surfaces. Free, up to the tarso-metatarsal joint, the soft parts from the external, internal, and plantar surfaces of the metatarsal and phalanx by closely hugging the bones with periosteal elevator, rotating the toe as indicated. The sesamoid bones are left behind, and the structures about the metatarso-phalangeal joint are removed as nearly subcapsulo-periosteally as possible, in order to retain the attachment of the severed tendons there inserted. Open the tarso-metatarsal joint from the dorsum, completing the disarticulation by severing the remaining ligaments while under tension Fig. 349.— Amputations about the Toes and Foot — Inner view : — A, At interphalangeal joint of great toe, by plantar flap ; B. Of great toe and its metatarsal, at tarso-metatarsal joint, by racket method, with transverse incision added to upper end ; C. Inner aspect of plantar and dorsal incisions in Syme's disarticulation of foot at ankle, by heel-flap ; C, Line of tibial and fibular section ; D. Inner aspect of plantar and dorsal incisions, in PirogofT s disarticulation at ankle, by heel-flap ; D', Line of section of bones of leg, in same ; I )". Line of section of os calcis. in same ; E, Inner aspect of plantar and dorsal incisions in subastragaloid disarticulation of foot, by heel-flap. during the manipulation of the toe. Divide the tendons of the peroneus longus and tibialis anticus. Cut the flexor tendons short and close their sheaths. The following arteries are divided — two dorsal digital, two plantar digital, and termination of internal plantar. Guard against wounding the communicating branch of the dorsalis pedis in the first interosseous space. The suture line will be vertical and fall over the dorso-external aspect of the toe, out of the way of pressure. Comment. — When the upper transverse incision is added, the vertical incision generallv begins just below the tarso-metatarsal joint and the trans- verse incision is then parallel with the tarso-metatarsal joint. When the vertical incision alone is used, it begins over the internal cuneiform. 406 AMPUTATIONS. DISARTICULATION OF LITTLE TOE WITH ITS ENTIRE METATARSAL PA' RACKET METHOD. Description — Landmarks. — As in the last operation. Incision. — Begins just above the tarsometatarsal joint at its dorso- external aspect — passes vertically downward along the outer margin of the extensor tendon to just beyond the center of the metatarsal — thence the two limbs of the oval diverge — the inner limb passing across the dorso-internal aspect of the toe to the web — the outer limb passing across the dorso-external aspect of the plantar surface at a point opposite the web — the two limbs Fig. 350. — Amputations about the Toes and Foot — Outer view: — A, Through first interpha- langeal joint of little toe, by oblique circular method ; B, Of little toe and its metatarsal, by racket method, with added curved incision at upper end ; C, Outer aspect of plantar and dorsal incisions, in Syme's disarticulation of foot at ankle, by a heel-flap ; C, Line of section through tibia and fibula, in same ; D, Outer aspect of plantar and dorsal incisions, in Pirogoff's disarticulation'at ankle ; D', Line of section of tibia and fibula in same ; D", Line of section of os calcis, in same; E, Supramalleolar amputation of leg, by oblique elliptical incision; E', Tibial and fibular section in same; F, Outer aspect of dorsal and plantar incisions in Subastragaloid Disarticulation of foot by heel-flap. meeting in the digito-plantar groove. If needed for purpose of more readily exposing the joint, an additional transverse, or oblique, incision may be added to the upper end of the vertical incision, by prolonging the latter a short wav directly outward parallel with the tarso-metatarsal joint (Fig. 35o, B). ' Operation. — The steps of the operation are practically the same as in the corresponding operation upon the great toe (page 404). The metatarsal is disarticulated from the cuboid and from the fourth metatarsal. Two dorsal and two plantar digital arteries are cut. TARSOMETATARSAL DISARTICULATION OF THE TOES. 407 DISARTICULATION OF TWO OR THREE CONTIGUOUS TOES WITH THEIR ENTIRE METATARSALS BY OVAL OR RACKET METHOD. Description. — Same, in principle, as the operation for the removal of a single toe and its metatarsal (page 402). Where two contiguous toes are removed, the vertical portion of the incision is placed between the two toes, beginning just above the saw-line and diverging to include both toes — meeting on the plantar surface of the web between them. Where three contiguous toes are removed, the vertical portion of the incision is placed over the middle metatarsal, beginning at the disarticulation line, or just above, and diverging to include all three toes, meeting at the center of the plantar surface of the middle toe, in the digito-plantar crease (Fig. 344, I) . DISARTICULATION OF ALL THE TOES AT TARSO-METATARSAL JOINTS BY SHORT DORSAL AND LONG PLANTAR FLAPS — LISFRANC'S OPERATION. Description. — Disarticulation of the anterior portion of the foot at the tarso-metatarsal line — the stump being formed of plantar and dorsal tissues. Position. — As for the metatarsal amputation (page 402). Landmarks. — Tarso-metatarsal joint-line; heads of metatarsals. Incision. — (Supposing the foot of the right side to be operated upon) — (1) Dorsal Flap — The surgeon's left hand grasps the foot with his thumb on the base of the fifth metatarsal and forefinger on the base of the first, his palm to the sole — the foot being extended. The incision begins just behind the base of the fifth metatarsal, nearer the plantar than dorsal surface — passes straight down the outer aspect of the foot for 2.5 cm. (1 inch) — thence rounds onto the dorsum and crosses the foot with slight downward convexity, parallel with and about 1.3 cm. (J inch) below the tarso-metatarsal joints, reaching the inner border of the foot 1.3 cm. (J inch) below the tarso- metatarsal joint — thence rounds into the inner aspect of the foot and passes straight upward and ends 2 cm. (f inch) above the cuneiform-metatarsal articu- lation of the great toe, somewhat nearer the plantar than the dorsal aspect. (2) Plantar Flap — the surgeon holds the toes between the fingers on the dorsum and thumb on the plantar surfaces — the foot being flexed. The incision is con- tinuous with the horizontal portion of the dorsal incision, passing down the outer lateral aspect of the foot along the plantar edge of the fifth metatarsal to just below its middle — then gradually rounds into the sole and sweeps obliquely across the plantar surface in such a way as to cross the fifth meta- tarsal just above its neck, the fourth metatarsal at its neck, the third and second opposite their heads, and then the first metatarsal at the metatarso- phalangeal joint — thence rounds into the inner mid-lateral aspect of the foot and passes straight up its border, along the plantar edge of the first meta- tarsal, to become continuous with the vertical portion of the dorsal incision (Fig. 346, B, B). Operation. — Deepen the dorsal line to the extensor tendons and free back the superficial tissues for about 6 mm. (\ inch) — and then divide all the soft parts down to the bones, while the foot is fully extended on the leg and the toes flexed on the foot — and free the flap to, and very slightly above, the joint-line, hugging the bone to save the interosseous vessels and portions of in- 4o8 AMPUTATIONS. terosseous muscles. Deepen the plantar incision to the flexor tendons and free back the flap of superficial tissues to the hollow behind the heads of the meta- tarsals — and then divide all the soft parts down to the bones, while the foot is fully Hexed on the leg and the toes extended on the foot — and free the flap to, and very slightly above, the tarso-metatarsal joint-line. Both flaps contain all the soft parts to the bones. Disarticulation is now accomplished from the dor- sum. Retract the flaps — extend the foot — and begin the disarticulation by entering the knife behind the prominent base of the fifth metatarsal, at the outer side of the foot — and then, passing obliquely forward and inward, cut the peroneus brevis and tertius tendons and disarticulate the fifth, fourth, and third metatarsals. Then turn to the inner side of the foot, and sever the ligaments of the first tarso-metatarsal joint, and divide the expansion of the tibialis anticus. There remains the freeing of the second metatarsal, which is somewhat diffi- cult, unless undertaken in a definite manner. Hold the knife like a dagger, with the cutting-edge toward the ankle, the blade pointing forward at an angle with the dorsum of the foot — enter the point deeply between the bases of first and second metatarsals, where they begin to bind — elevate the handle until perpendicular to the dorsum, cutting, at the same time, forward — and thus the ligaments binding the base of the second metatarsal to the base of the first metatarsal and internal cuneiform are severed (the manceuvre being called the "coup de maitre"). Repeat this manoeuvre between the bases of the second and third metatarsals. Complete the disarticulation of the second metatarsal by severing, from the dorsum, the ligaments between the middle cuneiform and base of the metatarsal. Divide any connecting bands upon the plantar aspect of the joints. The peroneus longus tendon now alone holds the metatarsal — put this upon the stretch, dividing it high up. The following arteries are to be tied — in the dorsal flap; four dorsal interosseous, communicating branch of dorsalis pedis; — in plantar flap; five plantar digital branches of external plantar (and possibly the external plantar itself) and the termination of the internal plantar. Suture any open sheaths. Quilt the muscles. Suture the plantar and dorsal flaps in one transverse line. Support the stump upon a splint. Comment. — (i) The plantar flap may be cut first. (2) The dorsal flap may be made and disarticulation accomplished, and then the plantar flap cut from within outward — which is not so satisfactory as the above. (3) Freer allowance should be made to cover the thicker inner than the thinner outer side of the foot — which is the reason for cutting the inner aspect of the flap longer. (4) Guard against making the dorsal flap (00 short and too scant on the dorsal aspects — and also against making either flap too pointed. (5) Guard against mistaking the scapho-cuneiform joint for the metatarso- cuneiform joint. (6) Guard the plantar tissues while disarticulating the second metatarsal. (7) The dorsal flap should include most of the tissues upon the outer and inner aspect of the foot. (8) This method makes an excellent and useful stump. DISARTICULATION OF ALL THE TOES AT THE TARSO-METATARSAL JOINTS, WITH SAWING OFF OF END OF INTERNAL CUNEIFORM, EY SHORT DORSAL AND LONG PLANTAR FLAPS — HEV'S OPERATION. Description. — This operation is similar to Lisfranc's as to incisions, freeing of flaps, ligation of vessels and suturing of wound — differing only in one respect — namely, after disarticulating the four outer metatarsals, MEDIO-TARSAL DISARTICULATION OF FOOT. 409 the .protruding end of the innermost cuneiform is sawed off on a line with the others, and removed together with the first metatarsal still articulated. DISARTICULATION OF ANTERIOR PART OF FOOT AT MEDIO-TARSAL JOINT, IN GENERAL. Best Methods. — Short Dorsal and Long Plantar Flaps — Chopart's Operation. Other Methods. — Modified Oval (Tripier's Operation) — medio-tarsal disarticulation, with horizontal sawing of os calcis. DISARTICULATION OF ANTERIOR PART OF FOOT AT MEDIO-TARSAL JOINT BY SHORT DORSAL AND LONG PLANTAR FLAPS — CHOPART'S OPERATION. Description. — Disarticulation of anterior portion of foot at astragalo- scaphoid and calcaneo-cuboid joints, by means of a short dorsal and long plantar flap — the operation being somewhat similar to Lisfranc's tarso- metatarsal disarticulation. Position. — As for Lisfranc's operation. Landmarks. — Astragalo-scaphoid joint (just behind the tuberosity of the scaphoid) ; calcaneo-cuboid joint (midway between the external malleolus and tubercle of fifth metatarsal); tarso-metatarsal joint-line; middle of meta- tarsus. Incisions. — (Right foot) — Plantar incision — begins on outer aspect of foot, little -nearer plantar than dorsal surface, and at a point opposite the calcaneo-cuboid joint (see Landmarks) — passes straight down the outer side of foot to near middle of fifth metatarsal — thence rounds inward and crosses sole of foot, opposite the middle of the metatarsals, to the inner side of the foot — rounds into the inner border of the foot and passes straight up that border, little nearer the plantar than dorsal surface, to a point opposite the astragalo-scaphoid joint (see Landmarks). Dorsal incision — begins by curving from the outer limb of the plantar incision, just posterior to the fifth tarso-metatarsal joint — and ends by curving into the inner limb of the plantar incision just posterior to the first tarso-metatarsal joint — crossing the dorsum opposite the bases of the metatarsals (Fig. 348, B, B). Operation. — Deepen the plantar incision, the foot flexed on the leg and the toes extended on the foot, to the flexor tendons. Free the skin and fascia a short distance — divide all soft parts to the bones — and dissect up the flap of the entire soft parts to the medio-tarsal joint. Deepen the dorsal incision, the foot extended on the leg and the toes flexed on the foot, to the extensor tendons. Free the skin and fascia a short distance — divide all the soft parts to the bones — and dissect up the flap of the entire soft tissues to the medio-tarsal joint. Disarticulate from the dorsum while the foot is forcibly extended — rotating the forepart of the foot outward while severing the ligaments of the astragalo-scaphoid joint, and inward while dividing those of the calcaneo-cuboid articulation. The tendons of the tibialis anticus and posticus, and peroneus tertius, brevis, and longus, are cut among the deeper structures. Quilt the muscular and tendinous tissues of the two flaps, especially suturing the extensor tendons and tibialis anticus of the dorsal flap, to the tissues of the plantar flap — in order to counteract the 41 o AMPUTATIONS. tendency of the tendo Achillis to permanently extend the foot. In the dorsal flap, the dorsalis pedis and its tarsal and metatarsal branches are cut — and in the plantar flap, the terminations of external and internal plantar arteries, and plantar digital branches. Comment. — (i) Considerable tendency exists for displacement of the bones of the stump subsequent to healing — either the posterior portion of the os calcis being drawn up by the tendo Achillis, thus throwing the head of the os calcis downward to be pressed upon in walking — or the stump is turned into the varus position and the patient walks upon the outer border of the os calcis. (2) The proportionate lengths of the flaps and the manner of their making may be varied, as described in Lisfranc's operation. The total covering required is about 1^ diameters at the saw-line. DISARTICULATION OF FOOT AT ASTRAGALO-SCAPHOID AND AS- TRAGALO-CALCANEAL ARTICULATIONS— SUBASTRAGALOID DISARTICULATION— IN GENERAL. Best Methods. — Large Interno-plantar Flap (Farabeuf). Heel-flap. Other Methods. — Oval, or Racket Method (Maurice Perrin). Oval Method (Verneuil). Comparison. — The interno-plantar flap furnishes the best blood-supply — the cicatrix is well placed and the stump is broad. But the method requires considerable healthy, available tissue — the operation is somewhat difficult to perform — and the flap is somewhat unwieldy. The heel-flap method is a simpler operation and requires minimum tissue — but gives a narrower stump. DISARTICULATION OF FOOT AT ASTRAGALO-SCAPHOID AND AS- TRAGALO-CALCANEAL JOINTS— SUBASTRAGALOID DIS- ARTICULATION BY LARGE INTERNO-PLANTAR FLAP — FARABEUF. Description. — A modified oval method. The structures below the astragalus are removed — the stump being covered by a large flap gotten from the sole and inner border of the foot — the scar being horizontal and upon the outer and anterior aspects of the foot. Position. — As in the preceding operations, in general — the surgeon so manipulating the foot with his left hand as to turn it from side to side in following the complicated incision. Landmarks. — Tendo Achillis; external malleolus; base of fifth meta- tarsal; joint between scaphoid and cuneiforms; joi, Osteoplastic amputation of the leg by long posterior and short anterior flap. Landmarks. — The saw-line. Incisions. — The posterior flap, having a base equal to one-half the cir- cumference of the limb at the line of bone-section, is made by an incision begin- ning just below the line of the division of the bone and passing down behind the posterior border of the tibia and fibula, rounding out into the posterior aspect of the limb at a distance below the saw-level equivalent to about one diameter of the limb at the level of the bone-section. The anterior flap is OSTEOPLASTIC AMPUTATION OF THE LEG. 423 one-third the length of the posterior, beginning and ending in the same lines laterally. (Fig. 354, B.j Operation. — Having outlined both flaps through skin and fascia, the soft parts of the posterior flap are divided to the bones, cutting obliquely from the line of the retracted skin. This flap is then retracted, en masse, up to the saw-line. The anterior flap is dealt with in the same way — both flaps con- Fig. 355. — Lines of Section of Bones in the Osteoplastic Amputation of the Leg : — Having completed the division and retraction of the soft parts, the tibia and fibula are sawn transversely at H and F; — The tibia is sawn longitudinally from H to G, along AC and BD; — The fibula' is then sawn through completely at E, and the tibia is divided at CD, nearly to but not through the periosteum toward G; — The portion of the tibia between the lines AHB and CGD represents the osteoplastic flap. sisting of all the soft parts down to but not including the periosteum. Having retracted the soft flaps well out of the way, thus exposing the tibia and fibula with their undisturbed periosteum, the bone-flap to be taken from the tibia is planned. A sufficient length of bone-flap is calculated to cover the trans- versely divided ends of tibia and fibula — the bone-flap coming from the antero- internal aspect of the tibia. The making of this flap is somewhat complicated — but is well shown in the diagrammatic Figs. 355, 356, 357, and 358. Having I Fig. 356. — Removing Sections of Tibia and Fibula to enable the Tibial Bone-flap to be Hinged over upon the Sawn Fibula: — A, A third transverse section of both bones is here made for this purpose, at a height above the preceding section equivalent to the thickness of the bone-flap. completed the division and retraction of the soft parts, the tibia and fibula are sawn transversely at H and F, Fig. 355. The tibia is sawn longitudinally from H to G, along A C and B D. The fibula is then sawn through com- pletely at E, and the tibia is divided at C D, nearly to but not through the periosteum toward G. The portion of the tibia between the lines AHB and CGD represents the osteoplastic flap. The periosteal flap is now 424 AMPUTATIONS. broken back through the limited portion of bone still holding it — by means of a chisel inserted in the saw-section and given a slight tap. Having hinged back the bone-flap, room has now to be provided for its bending forward over the transversely divided tibia and fibula. This is accomplished by making another transverse division of both bones at a height above the preceding sec- 9 M r* ~vw j Fig- 357- — -The Osteoplastic Amputation of the Leg: — The bone-flap, AB, with its periosteal hinge, K, is here shown ready to be applied to the transversely divided ends of the tibia and fibula, L, M. Owing to the removal of the piece of tibia and fibula accomplished by the last section (Fig. 356) this hinging is made possible. tion equivalent to the thickness of the bone-flap — Fig. 356. The completed bone-sections are shown in Fig. 357, where the redundancy of periosteum is shown, furnishing the hinge. The bone-flap is now dropped over the ends of the bones and is held in place either by suturing its periosteum to that of the tibia and fibula, or by carrying an absorbable suture through a hole previously Fig. 358. — The Osteoplastic Amputation of the Leg : — The tibial flap, with its adherent and continuous periosteum, is here shown applied to itself and fibula — a suture, passed through drilled holes, holding the parts in contact. drilled through both bones, as shown in Fig. 358. Having united the bone- flap to the tibia and fibula, the larger posterior flap of soft parts is brought over the bone-flap and sutured to the contour of the smaller anterior flap — the muscle structures in the two flaps being supported by buried absorbable sutures. AMPUTATION THROUGH MIDDLE THIRD OF LEG BY LONG POSTERIOR AND SHORT ANTERIOR FLAPS — BY HEY'S OPERATION. Description. — The covering is by skin and muscle flaps, furnished almost entirely from the posterior aspect of the leg. The method is fre- AMPUTATION THROUGH UPPER THIRD OF LEG. 425 quently termed simply a long posterior flap operation — and differs but little from the preceding operation. Position. — As in Guyon's operation (page 419) — and as given under Incision, below. Landmarks. — Saw-line. Incisions. — The posterior flap is U-shaped — its breadth is equal to half the circumference of the limb at the saw-line, and its length is equivalent to one diameter of the limb at that line. It begins 2.5 cm. (1 inch) below the saw-line (instead of at that line). The inner limb passes vertically down the leg just behind the internal border of the tibia, rounding broadly into the posterior aspect of the limb — the outer limb passing vertically downward just behind the fibula, posterior to the peronei muscles, and rounding broadly into the posterior aspect of the leg to unite with the opposite limb of the incision. The anterior flap is about one-third the length of the posterior, and is made by joining the vertical limbs of the posterior flap, at their upper thirds, by a transverse incision, with slight downward convexity, across the front of the leg. In these incisions the knee is flexed and the leg is laid on its outer side while the inner incision is being made from above downward, and vice versa (Fig. 353, B). Operation. — The above incisions pass through the skin and fascia onlv. With the leg flexed on the thigh and the knee everted, the gastrocnemius is held up by thumb and first finger and cut from without, on a line with the retracted skin and fascia. The upper parts of both vertical incisions are now deepened — the inner to the tibia, the outer to the fibula, behind the peronei muscles. The left thumb and index are inserted into these slits and the muscles drawn outward. The muscles having been detached from the bones and interosseous membrane above, a long knife is passed between the bones and separated muscles and is made to cut its way outward along the fine of the retracted skin. The interosseous membrane is divided transversely and the periosteum of the tibia and fibula circularly — and all the soft parts retracted upward for the 2.5 cm. (1 inch) between the saw-line and the begin- ning of the flaps. The flaps are now retracted — the bones divided, and the prominent crest of the tibia beveled. The anterior tibial, posterior tibial, and peroneal arteries are ligated. The musculo-periosteal coverings are sutured over the ends of the bones. The muscles are quilted with special care, owing to the tendency of the posterior flap to sag backward. The large posterior and short anterior flaps are then sutured together — and the stump supported upon a posterior splint. AMPUTATION THROUGH UPPER THIRD OF LEG BY LARGE EXTERNAL FLAP — FARABEUF. Description. — The stump is covered by a large U-shaped flap of skin and muscles raised from the external aspect of the leg. Position. — Patient supine; leg projecting over side of table, with knee flexed and leg lying on inner side for the incision of the external flap, and on the outer side for the transverse incision. Surgeon to outer side of right and inner side of left leg. Landmarks. — Saw-line. Incision. — External flap — U-shaped, equivalent in length to one diameter of limb at saw-line — begins opposite the saw-line anteriorly — passes vertically downward parallel with and just internal to the anterior border of the tibia 426 AMPUTATIONS. — rounds across the external aspect of the leg and passes vertically upward directly opposite the anterior incision — but ends about 4 cm. (ij inches) below the saw-line. Transverse incision — passes transversely across the inner aspect of the limb, with slight downward convexity, connecting the upper end of the posterior incision with a point on the anterior incision 4 cm. (i^ inches) below its beginning. The external flap may be cut, or outlined, 1 c Fig- 359.— Amputations about the Leg: — A, Through lower third of leg, by oblique circular method; B, Through middle third, by modified circular method ; C, Through upper third, by large external flap. with one sweep of the knife — but it is better to complete it in two strokes (Fig. 359, C). Operation. — Beginning with the external flap, the above incision is deepened along the line of the retracted skin — and the large flap, of all the soft parts to the bones, raised. To accomplish this, the incision is first deepened along the anterior limb by cutting down upon the anterior border AMPUTATION THROUGH UPPER THIRD OF LEG. 427 of the tibia, from above downward. The tibialis anticus is thus freed from the bone. The left fingers of the operator, slipped between muscle and bones, draw it outward, while the short knife continues its downward inci- sions, beveling obliquely the lower portion of the muscular mass toward the extremitv of the flap. Thus the entire muscle-mass is separated from the tibia, interosseous membrane, and fibula, by the use of the knife, fingers, and elevator. Care is taken that the anterior tibial artery is not divided before the free end of the flap is reached, the integrity of which so largely depends upon this vessel. If the parts are freed up too high, especially posteriorlv, where the vertical incision is shorter than the anterior, the anterior tibial artery may be severed before traversing the interosseous membrane. The transverse incision crossing the inner aspect of the limb is now deepened by cutting from without inward on the line of retracted skin and fascia. The interosseous membrane is divided transversely. The periosteum is circularlv divided around the tibia and fibula. The periosteum and soft parts are then freed up to the saw-line and retracted while the bones are divided — the prominent margin of the tibia being beveled from above down- ward, and from before backward. The fibula is sawed a little higher than the tibia, and beveled from above downward, and from without inward. The anterior tibial, posterior tibial, peroneal, muscular branches to the gastrocnemius and soleus, and nutrient arteries are ligated. All nerve-trunks which are apt to be pressed upon are dissected out. The muscles are quilted. The margins of the external flap are sutured to the inner transverse incision — and the limb dressed upon a posterior splint. AMPUTATION THROUGH UPPER THIRD OF LEG PA' BILATERAL HOODED FLAPS — STEPHEN SMITH. Description. — Two lateral flaps of skin and fascia are raised from the outer sides of the leg, by an incision extending much higher behind than in front— these are retracted about 2.5 cm. (1 inch)— the muscles circularly divided and retracted to the saw-line and the bones sawed— forming a bilateral hood over the ends of the bones, which is sutured vertically— the scar being eventually drawn up behind the bones. Position. — Patient supine; leg over edge of table, held horizontal for skin incisions and vertical when freeing back the soft parts. The surgeon, to outer side of right and inner side of left limbs, places the right thumb upon the crest of the tibia, to mark the upper limit of the anterior incision, and the index posteriorly, to mark the upper limit of the posterior incision- leaning over patient and cutting from behind forward on both sides, the incisions meeting at the highest point of the anterior incision. Landmarks.— Saw-line, marking the upper limit of the posterior incision —and the point on the crest of the tibia marking the upper limit of the anterior incision, and placed about three-fourths of a diameter of the limb at the saw-line below the upper limit of the posterior incision (Fig. 353, C). Incisions. — The surgeon, having grasped the limb in such a manner as to mark the upper limit of the anterior incision by his left thumb upon the crest of the tibia, and of the posterior incision by his left index in the mid- posterior aspect of the leg at the saw-line— bends over the patient's leg (his arm being above and to the far side of the limb) and inserts the point of a stout knife, held at a right angle to the skin, into the posterior tissues opposite the tip of the index— cuts thence downward, through skin and fascia— verticallv downward, at first— and then soon begins gradually to sweep to 428 AMPUTATIONS. the side of the limb opposite to that on which he is standing — and continues to pass in this curvilinear manner until a little below the level marked by his left thumb — then curves transversely across the far side of the limb and slightly ascends to the point marked by the tip of the thumb. The knife is now removed and this incision is repeated upon the near side of the limb, the knife entering at the highest point posteriorly, sweeping with the same curve (except that the flap may be advantageously made a little larger on the inner side, to cover the larger tibia) to the highest point anteriorly. , ,""-* 1 * " 1 jl 1 j 1 | 1 Jr 1 1 Fig. 360. — Bier's Osteoplastic Amputation of the Upper Third of the Leg: — Lines for" the incision of the soft parts, forming the antero-internal cellulocutaneous flap. Operation. — Having incised the skin and fascia, these flaps are raised from their lower ends for about 2.5 cm. (1 inch) and are retracted, when the muscles are circularly divided to the bone — and are retracted from the tibia and fibula up to a level far enough below the saw-line to furnish a perios- teal covering. Here the interosseous membrane is divided transversely — and the periosteum circularly around the tibia. All the soft parts, including periosteum, are then retracted above the saw-line and the bone divided, beveling the tibia and sawing the fibula shorter than the tibia. The short piece of the fibula may then be disarticulated and excised. The anterior and posterior tibial, peroneal, and muscular arteries are tied. The musculo- periosteal covering is sutured over the tibia — the muscles quilted— and the flaps sutured in a vertical line— the redundancy of soft parts being eventually drawn up behind the stump. The hood of skin and muscle falls over the ends of the bones and the stump is freely movable. OSTEOPLASTIC AMPUTATION THROUGH UPPER THIRD OF LEG. 429 OSTEOPLASTIC AMPUTATION THROUGH THE UPPER THIRD OF THE LEG BY ANTERO-INTERNAL FLAP BIER'S METHOD. Description. — An osteoplastic flap is taken from the antero-internal aspect of the tibia, in the upper third of the leg, and applied to the trans- versely divided tibia and fibula. Position. — As for amputations through the upper part of the leg (v. page 425 and 427, in part). Landmarks. — The saw-line, which may be at any height of the leg, but is usually in the neighborhood of the junction of the upper and middle thirds. Incisions. — An antero-internal skin-and-connective-tissue flap is out- lined, having a base equal to half the circumference of the limb at the saw- line, and whose length is somewhat greater than the diameter at that line. The upper limits of this flap are connected by a semi-circular incision with slight downward dip at its center and passing posteriorly (Fig. 360). Operation. — Having carried these incisions through skin and fascia, the large antero-internal flap is dissected back and turned upward upon the limb. The periosteum is incised upon the subcutaneous aspect of the tibia — trans- versely at the lower limit of the flap, and vertically along the borders of the tibia, sufficiently to plan for the formation of the periosteally covered bone-flap. Figs. 361 and 362. — Bier's Osteoplastic Amputation of the Leg: — A, Showing manner of raising an osseo- periosteal flap from tibia; B, showing bone-flap brought over sawed ends of tibia and fibula, and its periosteal margins sutured to the margins of periosteum around tibia and fibula. The osseo-periosteal flap is here shown separated from its soft parts, to which it should be adherent. (Modified from Bier.) A bone-flap, with periosteum attached, is now raised from this aspect of the tibia by means of a Gigli-Haertel saw — calculated to cover the transversely divided tibia and fibula. The bone-flap is broken back at its base, the perios- teum maintaining a hinge connection with the upper part of the bone (Fig. 361, A). This bone-flap is turned upward and backward — and the limb is amputated at the level of the upper limit of the limbs of the antero-internal flap by a transverse incision. The vessels are secured and the nerves and tendons cut short. Enough of the upper end of the bone-flap is removed with a saw to enable the intervening hinge of periosteum to bend over the end 430 AMPUTATIONS. of the bone without too great stretching. Having approximated the sawn bone-flap to the sawn ends of tibia and fibula, it is held in place by suturing the adjacents margins of periosteum with absorbable sutures, as indicated in Fig. 362, B. The skin-flap is finally turned down and sutured to the transversely divided skin posteriorly. SURGICAL ANATOMY OF THE KNEE-JOINT. Bones. — Conchies of lemur; tuberosities of tibia; head of fibula; patella. Articulations and Ligaments. — (a) External Ligaments — anterior, or ligamentum patellae; fibrous expansion of extensor tendons (central and two lateral portions); posterior, or ligamentum posticum Winslowii; internal lateral; anterior external lateral; posterior external lateral; capsular, (b) Internal Ligaments — anterior, or external crucial; posterior, or internal crucial; internal semilunar fibro-cartilage; external semilunar fibro- cartilage; transverse; coronary ligaments; and synovial membrane (with the prolonga- tions, ligamentum mucosum and ligamenta alaria). Muscles. — See under Muscles of Leg (page 416) and those of Thigh (page 436) • Arteries. — Following branches from femoral — anastomotica magna; terminal branch of profunda; descending branch of external circumflex. Popliteal and following branches — superior and inferior muscular; cutaneous; superior external articular; superior internal articular; azygos articular; inferior external articular; inferior internal articular. Following branches from anterior tibial — anterior tibial recurrent. Veins. — Superficial: — internal saphenous and tributaries; external saphe- nous and tributaries. Deep: — popliteal; two venae comites to each artery below the knee; one vena comes to each artery above the knee. Nerves. — (a) From nerves of lumbar plexus: — From external cutaneous: — anterior branch. From anterior crural: — middle cutaneous; anterior and posterior branches of internal cutaneous branch; internal saphenous; nervus cutaneus patellae branch of internal saphenous; muscular branches; articular branches, (b) From Sacral Plexus: — Small sciatic branches. From great sciatic; — internal popliteal, and its articular, muscular, and communicans poplitei branches; external popliteal (peroneal) and its articular branches. Synovial Membrane of Knee-joint. — Beginning at the upper border of the patella and following the capsule of the joint upward, it forms a large cul-de-sac beneath the quadriceps extensor tendon, on the anterior aspect of the thigh, for a distance of 5 to 6.5 cm. (2 to 2^ inches) above the articular surface of the femur, which generally communicates with a synovial bursa between the tendon and front of the femur above the level of the attachment of the capsular ligament. Having invested the circumference of the lower end of the femur, it is reflected upon the fibrous covering of the joint formed by the capsular, posterior, and lateral ligaments, extending on each side of the patella beneath the aponeurosis of the vastus internus and externus (especially the former). Below the patella the synovial membrane is separated from the anterior ligament by the capsular ligament and adipose tissue. From the capsule, the synovial membrane extends down to the semilunar cartilages, covering their upper surface, free border, and inner surface, and forming a cul-de-sac between the groove on the back part of the external semilunar cartilage and the popliteus muscle, extending down to the tibio- fibular ligament, constituting a bursa for the play of the popliteus tendon. SURFACE FORM AND LANDMARKS OF KNEE-JOINT. 431 It is reflected from the under surface of the semilunar cartilages onto the coronary ligaments, thence to the head of the tibia and a short way around its circumference. The inner surface of the ligaments enclosing the joint is covered by synovial membrane, and the crucial ligaments are surrounded by it, except where in contact with other structures (and hence excluded from the synovial cavity). Posteriorly a pouch is prolonged between the outer head of the gastrocnemius and the external condyle of the femur, and one between the internal head of the gastrocnemius and the internal condyle of the femur. For prolongations of the mucous membrane as ligamentum mucosum and ligamentaria alaria, see under Ligaments. Bursae About the Joint.— (a) In Front:— (1) Between patella and skin, (2) Between upper part of tuberosity of tibia and ligamentum patella\ (3) Between lower part of tuberosity of tibia and skin, (b) On Outer Side: — (1) Beneath outer head of gastrocnemius (sometimes communicating with joint). (2) i\bove external lateral ligament, between it and tendon of biceps. (3) Beneath external lateral ligament, between it and tendon of popliteus (sometimes only an expansion from following bursa). (4) Beneath tendon of popliteus, between it and condyle of femur (generally an extension from synovial membrane), (c) On Inner Side: — (1) Beneath inner head of gastroc- nemius, with prolongations between tendons of gastrocnemius and semi- membranosus (often communicating with joint). (2) Above internal lateral ligament, between it and tendons of sartorius, gracilis, and semitendinosus. (3) Beneath internal lateral ligament, between it and tendon of semimem- branosus (sometimes only an expansion from following). (4) Beneath the tendon of semimembranosus, between it and head of tibia. (5) Between tendons of semimembranosus and semitendinosus (sometimes). Structures in Relation with Knee-joint. — (a) Anteriorly: — quadriceps extensor, (b) Posteriorly: — expansion from tendon of semimembranosus; popliteal vessels; internal popliteal nerve; popliteus; plantaris; inner and outer heads of gastrocnemius; lymphatic glands, (c) Externally: — quadriceps extensor; tendon of biceps; tendon of popliteus; external popliteal nerve, (d) Internally: — quadriceps extensor; sartorius; gracilis; semitendinosus; semimembranosus. Movements of Joint. — Flexion — by biceps, semitendinosus, semi- membranosus — assisted by gracilis; sartorius; gastrocnemius; popliteus; plantaris. Extension — by quadriceps extensor. Inward Rotation — by pop- liteus; semitendinosus — assisted by semimembranosus; sartorius; gracilis. Outward Rotation — by biceps. The cross-section of the knee is shown in Fig. 362. SURFACE FORM AND LANDMARKS OF KNEE-JOINT. Bony landmarks — patella; condyles of femur; tuberosities of tibia; tubercle of tibia; head of fibula. To find the articular line of the knee-joint — cross the leg on the knee, when the inner tuberosity of the tibia will project beyond the inner condyle of the femur and make the articulation-line evident. The depression between the outer tuberosity of the tibia and outer condyle of the femur may also be made out. The upper margin of the external tuberosity of the tibia, when the joint is semiflexed, not only represents the articular line — but also the lower limit of the synovial membrane of the knee-joint. 43 2 AMPUTATIONS. The knee-joint lies, about 2 cm. (f inch) above the prominence of the tubercle of the tibia — and about opposite the transverse crease of skin in the popliteal space. When the limb is extended, the joint-line lies slightly above the apex of the patella. When the limb is slightly flexed, an instrument passed hori- zontally backward just below the apex of the patella will enter the joint. In full extension the lower third of the patella rests upon the condyles of the femur; — in full flexion, its upper third is in contact with the condyles; —in semiflexion, the middle third of the patella rests upon the greatest prom- inence of the femoral condyles. The apex of the patella, in extension, corre- sponds with the upper margin of the tibia. The axis of the femur inclines inward from the pelvis. The axis of the tibia is vertical. The inner aspect of the inner condyle faces, practically, in the same direction as the head of the femur. Internally, the inner condyle of the femur is more marked, and the inner tuberosity of the tibia less. Externally, the outer tuberosity of the femur is less marked, and the outer tuberosity of the tibia more. The adductor tubercle of the femur is to be felt at the upper part of the inner condyle — and marks the lower epiphysis. The upper border of the tubercle of the tibia is on a level with the upper aspect of the head of the fibula. The head of the fibula may be felt at the outer and back part, in the depression between the tendon of the biceps above, and the peroneus longus below. The hollow of the popliteal space exists only upon flexion — disappearing upon extension. The synovial membrane of the knee-joint separates the upper part of the ligamentum patellae (quadriceps extensor tendon) from the knee-joint — a bursa separates it from the tubercle of the tibia — and another bursa lies between the patella and the skin. The synovial membrane extends anteriorly for 5 to 6.5 cm. (2 to 2\ inches) above the joint — and, internally, for about 7.5 cm. (3 inches) above the joint (about 2.5 cm., or 1 inch, above the patella). Popliteal structures detectable by palpation — (a) Outer side: — ilio-tibial band, tendon of biceps, external popliteal nerve (close to preceding), (b) Inner side: — tendon of semitendinosus (slender), tendon of semimembranosus (thicker), gracilis (appearing as one tendon with preceding, unless manipu- lated), sartorius (at extreme inner side, detectable by putting into action). The lower epiphysis of the femur unites about the twentieth year, and the epiphyseal line is intracapsular. The upper epiphysis of the tibia unites about the twentieth year — and the epiphyseal line is extracapsular, and includes the tuberosities and tubercle of the tibia. The epiphysis of the upper end of the fibula unites about the twenty-fifth year. GENERAL SURGICAL CONSIDERATIONS IN DISARTICULATION AT THE KNEE-JOINT. Following disarticulation through the knee-joint, a stump usually results which is capable of bearing direct pressure (which, as a rule, stumps of the femur above the condyles cannot do), and which takes an artificial limb better — the disarticulation being preferable to an amputation through the femoral condyles, or higher. DISARTICULATION AT KNEE-JOINT, IN GENERAL. 433 Instrument-makers generally object to a limb disarticulated at the knee, as the artificial knee then comes in the upper part of the leg. In spite of this, however, and because of the reasons above given, disarticulation should be done in preference to amputation through the thigh. It is not necessarv to remove the remains of the synovial membrane, or the articular cartilages — but the knee-joint should be free of disease. The semilunar cartilages should not be removed — as they give a square, or flat, surface to rest upon, and help hold down the synovial capsule. The patella should not be removed — as it affords rotundity and firmness, and the attachment of the quadriceps extensor tendon is thereby retained. Fig- 363.— Cross-section of the Right Thigh through the Condyles and Patella: — A, Biceps; B, Popliteal artery, vein, and internal popliteal nerve; C, Outer head of the gastroc- nemius; D, External popliteal nerve; E, Sartorius; F, Inner head of the gastrocnemius; G, Semimembranosus; H, Tendon of semitendinosus; I, Tendon of gracilis. (The cross-section modified from Braune.) DISARTICULATION AT KNEE-JOINT, IN GENERAL. Best Methods.— Bilateral Hooded Flaps — Stephen Smith's Method. Other Methods. — Elliptical Method (Bauden's) — forming an anterior flap. Oblique Circular — forming an anterior flap. Long Anterior Flap. Long Posterior Flap. Bilateral Skin-flaps (Pick's operation). Equal Anterior and Posterior Flaps. Lateral Flaps. Long Anterior and Short Posterior Flaps. 28 434 AMPUTATIONS. DISARTICULATION AT KNEE-JOINT BY BILATERAL HOODED FLAPS — STEPHEN SMITH. Description. — The same, in principle, as the amputation through the upper part of the leg by the same method — except, as originally planned, the present operation furnishes a covering of skin and fascia only. For its modification, see Comment. Position. — As in the operation through the leg (page 427) — with the minor changes suggested by the higher elevation. Landmarks. — Knee-joint articulation; tubercle of tibia. Incision. — The highest point of the posterior incision is opposite the joint-line; — and the highest point of the anterior incision is 2.5 cm. (1 inch) below the tuberosity of the tibia. The surgeon's left thumb marks the anterior, and his index the posterior points, as in the last operation. The incision begins posteriorly (the surgeon wielding his knife as in the above operation) in the mid-popliteal space, opposite the interarticular line, as defined by the tip of his left index — passes thence vertically down the mid- posterior aspect for a short distance (about 5 cm., or 2 inches) — thence gradually diverges from the median line as it sweeps downward and outward over that side of the limb further from the surgeon (and over which he is leaning) until about 5 cm. (2 inches) below the tubercle of the tibia, cutting a flap with convexity downward — thence curves forward and slightly upward to a point in the median line 2.5 cm. (1 inch) below the tibial tubercle, thus ending the outline of the further flap. The knife again enters posteriorly at the same point, and makes a similar incision upon that side of the limb nearer the operator — calculating that the internal flap is slightly larger, to cover the larger internal femoral condyle — and meeting the first incision at the median line in front. The limb is rotated outward while the inner incision is being made — and vice versa. The knee is extended throughout (Fig. 364, B). Operation. — The skin and fascia are now freed all around and dissected up from the muscles and tendons. The ligamentum patellae is cut trans- versely against the tuberosity of the tibia as soon as reached. The skin and fascia flaps are retracted up to the joint-line. Incise, transversely, the struc- tures along the upper margin of the tibia, on the anterior and lateral aspects — ilio-tibial band, tendons of sartorius, gracilis, semitendinosus, biceps, the lateral ligaments — and, lastly, cut the coronary ligaments, binding down the semilunar cartilages, attacking them upon the sides of the joint — entering the joint between the head of the tibia and the semilunar cartilages, thus leaving these cartilages in the stump, and completing their separation by flexing the knee. Flex the knee and cut the crucial ligaments. Extend the knee and divide transversely, with one sweep of a long knife, all the soft parts opposite the posterior aspect of the joint — the gastrocnemius, popliteus, hamstring tendons, popliteal vessels and nerves, and posterior ligament. Ligate the popliteal artery and vein, sural, superior articular, and anastomotica magna branches. Suture the lateral flaps in a vertical line — the scar being eventually drawn into the intercondyloid notch. Drain temporarily through the upper end of the posterior incision. Comment. — The original technic may be advantageously modified by dissecting up the lower ends of the flaps for about 2.5 cm. (1 inch) — then dividing all the soft parts circularly and retracting these to the joint-line, DISARTICULATION AT KNEE-JOINT. 435 including their fibrous attachments as far as possible — and then disarticulate. A much more substantial covering is thus gotten for the femoral condyles. Wherever it is possible to quilt muscle tissue into apposition, this should be done. Fig. 364.— Amputations apout the Leg and Thigh : — A. Through upper third of leg, by equal lateral flaps; B, Disarticulation at knee, by bilateral hooded flaps (Stephen Smith's operation 1; C, Through lower part of thigh, by oval method. DISARTICULATION AT THE KNEE-JOINT BY AN OBLIQUE CURVED INCISION. Description. — An anterior covering of soft parts, including the patella, is here furnished. Position.— As in the disarticulation of Stephen Smith, page 434. Landmarks. — Knee-joint line; tibial tubercle. Incision. — Begins posteriorly opposite the level of the joint and ends anteriorly about 8 cm. (3 inches) below the tubercle of the tibia — the line curving between these two elevations. If the limb be held in such a way as to cause the leg to make an angle of 135 ° with the thigh, the continuation of the posterior aspect of the long axis of the thigh will represent the line of the incision. 436 AMPUTATIONS. Operation. — Divide skin and fascia along the above line and dissect these soft parts up to the level of the joint anteriorly. Incise the capsular ligament, after having divided the ligamentum patellae. Cut through the lateral ligaments and semilunar cartilages, leaving the latter upon the stump. Divide the crucial ligaments at their attachment to the spine of the tibia. Divide the soft parts posteriorly and the posterior part of the capsule along the upper border of the tibia, including the vessels, thus completing the disarticulation. The popliteal artery and vein and articular and muscular branches are here ligated — and the nerves drawn down and cut short. Tem- porary drainage of the portion of the joint and bursal surfaces left upon the thigh is necessary. SURGICAL ANATOMY OF THIGH. Bones. — Femur. Muscles of Thigh and Hip-joint. — (a) Muscles of Iliac Region: — psoas magnus; psoas parvus; iliacus. (b) Of Anterior Femoral Region: — tensor vaginae femoris; sartorius; rectus femoris; vastus externus; vastus internus and crureus; subcrureus. (c) Of Internal Femoral Region: — gracilis; pectineus; adductor longus; adductor brevis; adductor magnus. (d) Of Gluteal Region: — gluteus maximus; gluteus medius; gluteus minimus; pyriformis; obturator internus; gemellus superior; gemellus inferior; quadratus femoris; obturator externus. (e) Of Posterior Femoral Region: — biceps; semitendinosus ; semimembranosus. Arteries of Thigh. — Femoral and following branches: — superficial epi- gastric; superficial circumflex iliac; superficial external pudic; deep external pudic; profunda (with external circumflex, internal circumflex, and three perforating branches); muscular; anastomotica magna. And also arteries given under the supply to the hip-joint (page 450). Veins of the Thigh. — Superficial — internal saphenous and tributaries (especially external and internal femoral cutaneous). Deep — one vena comes to each artery on anterior, internal, and external aspects; two venae comites to each artery on posterior aspect and gluteal region. Nerves of Thigh. — (a) From Dorsal Nerves: — lateral cutaneous branch of last dorsal, (b) From Posterior Divisions of Lumbar Nerves: — cutaneous nerves from external branches of three upper posterior divisions, (c) From Lumbar Plexus: — ilio-hypogastric ; ilio-inguinal; genito-crural; external cu- taneous; anterior crural; obturator; accessory obturator. (d) From Sacral Plexus: — muscular; superior gluteal; inferior gluteal; perforating cutaneous; pudic; small sciatic; great sciatic (with internal and external popliteal branches). The cross-sections of the thigh are shown in Figs. 365, 50, 371, 373, 47- SURFACE FORM AND LANDMARKS OF THIGH. The only portions of the femur which can be felt are the outer surface of the great trochanter; internal and external condyles, with the tuberosities upon each; and the adductor tubercle at the upper part of the inner condyle. The rami of the pubes and ischia, from the pubic spines to the ischial tuberosities, mark the boundary between the thigh and perineum. The head of the femur lies close below Poupart's ligament, just to the outer side of its center. SURFACE FORM AXD LANDMARKS OF THIGH. 437 The.femur is nearest the external aspect of the thigh in its upper third— about the center in the middle third — and nearest the anterior, or antero- external, aspect in the lower third. The shaft of the femur is nearest the surface and is most easily reached in its lowest third, in the interval between the vastus externus and biceps. The articular surface extends higher on the anterior aspect of the external than on the internal condyle of the femur. A transverse section of the femur at the level of the adductor tubercle touches the upper limit of the articular cartilage and corresponds with the epiphyseal line. The medullary canal is only present distinctly in the middle two-fourths of the shaft of the femur. The thigh is separated from the abdomen by the inguinal furrow, the bottom of which furrow is formed by Poupart's ligament, at the meeting of the aponeurosis of the external oblique and fascia lata. The skin is coarse and thick on the external aspect of the thigh — fine and thin on the inner aspect — and loosely adherent throughout, though more adherent at the intermuscular septa. Dense fascia underlies the skin throughout. The outline of a transverse section of the thigh is irregular in the muscular — and more or less rounded in the stout, non-muscular, and in children. Most of the muscles of the femoral region are attached to the femur — but the semitendinosus, semimembranosus, sartorius, and gracilis are entirely free, and the biceps nearly so — therefore very unequal retraction follows their section, especially on the posterior and internal aspects. The rectus femoris forms a prominence below the anterior superior iliac spine, in the angle of divergence between the sartorius and the tensor vaginae femoris — and largely forms the convex front of the thigh as it descends down- ward. A furrow on either side separates it from the vasti. The vastus externus forms a flattened plane on the outer aspect of the thigh, traversed by a vertical groove formed by the ilio-tibial band. The vastus internus forms an eminence on the inner side of the lower half of the thigh. When the sartorius is relaxed, a depression exists between the extensor quadriceps and the adductor muscles, running downward and inward, from the apex of Scarpa's triangle to the inner side of the knee — which corresponds with this muscle. The adductor muscles, together with the gracilis, form the fullness of the inner aspect of the upper part of the thigh and are not to be separately identi- fied—except the upper tendon of the adductor longus (near the pubic spine), and the lower tendon of the adductor magnus (near the adductor tubercle, between the vastus internus and sartorius). The muscles on the inner aspect of the thigh are not distinctlv marked off from those on the posterior femoral aspect. But the muscles on the antero-external aspect are more distinctly marked off from the posterior femoral muscles by the external intermuscular septum. The tensor vaginae femoris extends downward and slightly backward from the upper part of the outer side of the thigh — and is continued down the thigh as the ilio-tibial band — which forms a furrow to the outer side of the knee. The hamstring muscles descend from beneath the fold of the buttock, diverging as thev pass downward to form the boundaries of the popliteal space — the biceps forming the outer hamstring — and the semitendinosus, 43 8 AMPUTATIONS. semimembranosus, and gracilis (in order, from within outward) forming the inner hamstring. For the landmarks of Scarpa's triangle and the femoral artery, see pages 92 and 93, respectively. The head of the femur joins the shaft at the eighteenth year; — the great trochanter, the same; — the lesser trochanter, at the thirteenth or fourteenth year; — and the lower extremity joins the shaft at the twentieth year. The growth, in length, of the lower extremity is chiefly from the lower epiphysis of the femur and the upper epiphysis of the tibia and fibula. GENERAL SURGICAL CONSIDERATIONS IN AMPUTATIONS ABOUT THE THIGH. The thigh is usually amputated at or below its middle. In the young, the preservation of whose epiphysis is important, division of the bone should be below the lower epiphyseal line (transcondyloid) if possible — and the covering gotten by a circular method of amputation. Any length of stump left is better than a hip joint disarticulation — for the function of the thigh-stump is partly to bear weight, but also to form a lever to move an artificial limb — and the longer the lever, the better. In amputating through the thigh, the chief weight of the body, as sup- ported by an artificial limb, is borne against the tuberosity of the ischium — and the chief pressure of the artificial apparatus is against the sides of the limb by the sides of the hollow cone of the apparatus. A terminal scar is, therefore, not contraindicated where a hollow form of artificial limb is intended. Subtrochanteric amputation is preferable to disarticulation at the hip. If it be found necessary in the course of such an operation, the amputation could be converted into a disarticulation. In amputating through the condyles (transcondyloid), the section is made through the condyles on a level with the adductor tubercle of the femur. In amputating just above the condyles (supracondyloid), the section is made from 1.3 to 2 cm. (h to f inch) above the condyles. Thigh amputations through the condyles can generally bear the pressure of the body — while one through the shaft usually cannot. The patella is removed in amputating through the condyles. The general type of amputation through the thigh is by a longer anterior and shorter posterior flap — at any level, but especially throughout the upper two-thirds. Greater retraction occurs upon the posterior and inner aspects of the thigh, where additional allowances should be made. The lower the ampu- tation through the thigh, the greater will be the retraction. In planning a method which will give a terminal scar, dissect out any nerves which might be pressed over the end of the bone. In antero-posterior flaps cut above the center of the thigh, the femoral and profunda arteries will be cut in the anterior flap; — in similar flaps below the center of the thigh, the femoral artery will be cut in the posterior flap and is in danger of being split; — and in amputations through the middle of the thigh, the antero-posterior flaps should be shifted so as to become antero- external and postero-internal, in order to avoid the risk of splitting the main artery. In longer anterior and shorter posterior flaps, as compared with equal anterior and posterior flaps, the longer anterior flap drops over the end of SURGICAL CONSIDERATION'S IN AMPUTATIONS ABOUT THIGH. 439 the bone, and the shorter posterior flap is not heavy enough to sag backward — as is apt to be the case in equal flaps (and especially in predominating posterior flaps) . Flaps are much more accurately fashioned if cut from without — and the anterior one always should be. If the posterior one must be cut by trans- fixion, first outline it through skin and fascia with a small knife, and then, transfixing, cut outward on a line with the retracted skin and fascia. Where speed is requisite (as in the very old, or in emergencv), the quickest methods of amputating through the thigh, are, by the circular method through Fig- 3 6 5- — Transverse Section through the Lower Third of the Right Thigh: — A, Y;istus externus; B, D, Biceps; C, Great sciatic nerve and vessels; E, Semitendinosus; F, Rectus; G, I, Vastus internus; H, Crureus; J, Femoral vessels and long saphenous nerve; K, Sartorius; L, Adductor magnus; M, Semimembranosus; N, Gracilis. (The cross-section modi- fied from Braune ) the lower third; and antero-posterior flap cut by transfixion through the upper two-thirds. Owing to the extent and inequality of retraction of muscles in amputating through all parts of the thigh, a conical stump is not uncommon. Hemorrhage is controlled, in operating through the middle and lower 440 AMPUTATIONS. thirds, by a rubber tourniquet ordinarily applied, just below the hip-joint. In amputating higher, the tourniquet should be applied as high as possible in the form of a spica, passing around the groin and pelvis. In both cases, especially the latter, the tubing should be held in place by a loop of bandage previously laid under the tubing or tourniquet, anteriorly and posteriorly, to be subsequently drawn upward. The femur is to be carefully sawed at a right angle to its length — sawing carefully near the linea' asperse, to avoid splintering. The stump should be dressed with a posterior splint included and placed upon an inclined plane, to relax the quadriceps extensor pull. AMPUTATIONS THROUGH THE THIGH, IN GENERAL. Best Methods. — Shorter Anterior and Longer Posterior Flaps (Lister's Modification of Carden's operation) — for transcondyloid region. Longer Anterior and Shorter Posterior Flaps (Gritti-Stokes's Method) — for supra- condvloid osteoplastic operation. Long Anterior and Short Posterior Flaps — for thigh throughout. Equal Anterior and Posterior Flaps — for thigh throughout, where the tissue is limited. Oblique Circular, or Elliptical, Method — for lower third. External Oval Method — for subtrochanteric region. Other Methods. — Long x\nterior Flap — Carden's transcondyloid opera- tion. Long Anterior and Short Posterior Flaps — Farabeuf's Modification of Carden's transcondyloid operation. Osteoplastic Transcondyloid Method of Sabanajeff. Long Anterior Rectangular Flap — Gritti's osteoplastic supra- condyloid operation. Circular. Modified Circular. Long Anterior Flap. Oval Method — throughout. Bilateral Hooded Flaps of Stephen Smith — for lower half. Rectangular Flaps of Teale — for lower half. AMPUTATION THROUGH CONDYLES OF FEMUR— TRANSCONDYLOID AMPUTATION BY SHORTER ANTERIOR AND LONGER POSTERIOR FLAPS — LISTER'S MODIFICATION OF CARDEN'S TRANSCONDYLOID OPERATION. Description. — Carden's operation consists in a division of the femur on a level with the adductor tubercle, together with the removal of the patella — the covering being gotten from a single anterior flap. Lister's modification consists in adding a posterior flap to the anterior flap, and then freeing the soft parts considerably above the base of the flaps. Position. — Patient on back; drawn down on table so that buttocks are near, or are on, the edge of the table. Surgeon on outer side of right and inner side of left limbs. One assistant steadies and supports the part below the site of operation— and another holds the limb, or retracts the parts, above the site of amputation. Landmarks. — Adductor magnus tubercle; knee-joint; tubercle of tibia. Incisions. — Anterior incision — crosses the front of the knee with slight downward convexity — beginning on the horizontal line of the knee-joint and in a vertical line with the prominences of the tuberosities of the femoral condyles, and crossing the ligamentum patellae just above its center. The left thumb and index mark the two ends of this incision, and the knee is slightly flexed and rotated from side to side during its making. Posterior AMPUTATION ABOVE CONDYLES OF FEMUR. 441 incision— joins the posterior extremities of the anterior incision at an angle of 45 degrees to the axis of the leg (Fig. 366, A, A'). Operation.— These incisions pass through skin and fascia, and the flaps outlined by them are then dissected upward as in a circular amputation. The dissection is carried on close to muscles, tendons, and patella. The hamstring muscles are cut as soon as encountered, dividing them transversely. The quadriceps extensor tendon is similarly cut transversely as soon as the upper border of the patella is reached. The soft parts, including as much of a capsulo-periosteal covering as possible, are then retracted to the level of the adductor tubercle. The condyles of the femur are then sawed through at that level, transversely to the axis of the limb (not of the bone). Ligate the popliteal, or its anterior and posterior tibial divisions, and muscular, articular, and anastomotica magna branches. Suture the capsulo-periosteal covering over the end of the bone. Suture the anterior and posterior flap margins together. Dress the stump upon a posterior splint and place upon an inclined plane. Comment. — (i) The scar is drawn posteriorly, out of the way of pressure. (2) The patella may be raised in the anterior flap and subsequently dissected out, especially if the parts be thick and unyielding. AMPUTATION JUST ABOVE CONDYLES OF FEMUR, WITH SPLITTING OF PATELLA, BY LONGER ANTERIOR AND SHORTER POSTERIOR FLAPS — GRITTI-STOKES'S SUPRA- CONDVLOID OSTEOPLASTIC AMPUTATION. Description. — Gritti's operation consists in the division of the femoral condyles at the level of the adductor magnus tubercles; the removal of the articular surface from the patella; the application of the sawed patella into contact with the sawed femur; and the covering of the stump with a long rectangular anterior flap. Stokes's modification consists in dividing the femur 2 to 2.5 cm. (f to 1 inch) above the adductor tubercle (where the trans- verse section of the femur more nearly corresponds with the size of the split patella) — the stump being then covered by an anterior longer and posterior shorter flap. The object being, in the latter case, to approximate bone- sections of nearer similar size, and to bring them into contact with less tension. Position — Landmarks. — As in the above operation. Incisions. — Anterior longer flap — begins 2.5 cm. (1 inch) directly above the prominence of one condyle and ends the same distance directly above the prominence of the opposite condyle — crossing the front of the knee, with broad curve, just below the tubercle of the tibia. Posterior shorter flap — passes, in a broad curve, between the points of beginning and ending of the anterior flap — being one-third the length of the anterior flap (Fig. 366, B, B', B"). Operation. — These flaps, having been outlined through skin and fascia, are now dissected upward. The skin and fascia of the anterior flap is raised from its lower edge until the ligamentum patelke is reached — which is cut transversely — and the flap further freed and turned up with the patella in it. The posterior flap of skin and fascia is then freed upward from the muscle structures. These flaps are now retracted to the saw-line (2 to 2.5 cm., or f to 1 inch, above the adductor magnus tubercle) and all the soft parts, in- 44: AMPUTATIONS. eluding periosteum, are circularly divided to the bone, after which the bone is sawed. The main vessels may be now tied before the section of the patella, which is the most difficult part of the operation, is done. These vessels are Fig. 366.— Amputations about Knee and Thigh : — A, Lister's modification of Garden's trans- condyloid amputation of thigh; A'. Division ol femur in Lister's operation, on level with adductor tubercle; B, Gritti-Stokcs's supracondyloid amputation of thigh ; with dotted lines, B' and B", show- ing division of femur above level of adductor tubercle, and splitting of patella; C, Through lower part of thigh, by long anterior and short posterior flaps. the popliteal, muscular, articular, anastomotic^ magna. The patella is grasped firmly by lion-jaw forceps, and held in such a way as to present its articular surface horizontally. A section of the bone is made in such a manner as to remove the articular surface of the patella. This is best accom- plished with a narrow, thin saw. It may also be done with a broad chisel, and, less satisfactorily, with cutting pliers. The cut surface of the patella is then approximated to the sawed end of the femur. It may be held in place by inserting two or three ivory or steel pegs through previously drilled holes in the patella — or by wire or chromic gut suturing through drill-holes near the margins of patella and femur — or by closely suturing fibrous parts about the patella to the fibrous or periosteal parts about the lower end of the femur. The anterior and posterior flaps are then sutured together. Firm FEMOROTIBIAL OSTEOPLASTIC AMPUTATION OF LOWER LIMB. 443 pressure is used against the stump, in the dressing, to aid in steadying the patella against the femur. Comment. — The scar is drawn up posteriorly out of the way of pressure. This operation is comparable with Pirogoff's osteoplastic amputation of the leg. FEMOROTIBIAL OSTEOPLASTIC AMPUTATION OF THE LOWER LIMB BY LONGER ANTERIOR AND SHORTER POSTERIOR FLAPS. SSABANAJEFF'S OPERATION. Description. — The limb is amputated through the condyles of the femur- To this sawn surface a bone-flap, with adherent soft parts, is applied. The osteoplastic flap is derived from the upper anterior aspect of the tibia. Position. — As for disarticulation at the knee-joint (p. 434, in part). Landmarks. — Head of fibula; internal lateral ligament; tubercle of tibia; tibio-fibular articulation; knee-joint. Fig. 367. — Ssabanajeff's Femorotibial Osteoplastic Amputation of the Lower Limb: — Lines of incision of the soft parts outlining long anterior and short posterior flaps. Fig. 368. — Ssabanajeff's Femorotibial Osteoplastic Amputation of the Lower Limb: — Lines of bone-sections; — A, Portion of femoral condyles removed; B, Rectangular piece of tibia, with attached patellar tendon, removed from tibia. (Modified from Ssaban- ajeff.) Incisions. — Anterior flap, — the vertical limbs pass down the mid-lateral aspects of the leg, from the head of the fibula on one side, and the internal lateral ligament on the other, to near the junction of the middle and upper thirds of the limb, where they round out and meet in the anterior aspect of the part. Posterior flap is similar in form and about half the length of the anterior (Fig- 367)- , . , , . Operation. — Having outlined both flaps through skin and fascia, the posterior flap of skin and fascia alone is dissected up to the articulations 444 AMPUTATIONS. between tibia and fibula and between tibia and femur. The knee-joint and the tibiofibular joint are now opened from behind. Divide the lateral, posterior, and crucial ligaments, after having severed the overlying soft struc- tures. The leg is now bent forward, so that the anterior surface of leg and thigh lie in contact — thus exposing the ends of the bones for sawing. The lower end of the femur is divided transversely through the expansion of the condyles (Fig. 368, A). Finally, a bone-flap is made from the upper and anterior aspect of the tibia as indicated in Fig. 368, B, with the attachment Fig. 369. — Ssabanajeff's Femorotibial Osteoplastic Amputation or the Lower Limb: — The rectangular portion of the excised tibia, with its attached tendon, is here shown held in contact with the sawn femoral condyles by a kangaroo tendon or wire suture, passed through the drilled bone. (Modified from Ssabanajeff.) of the ligamentum patellae preserved, the saw travelling first down the long axis of the tibia to below the attachment of the patellar ligament, thence transversely outward to its anterior surface. The sawn surface of the tibial bone-flap is then applied to the transversely sawn femoral condyles, the patellar ligament hinging around the anterior aspect of the bone sections. The femoral condyles and the tibial bone-flaps may be drilled and sutured with kangaroo tendon, as indicated in Fig. 369, or the bony surfaces may be held in contact simply by the peripheral suturing of the soft parts. The longer anterior flap is now carried backward and sutured to the posterior flap, by deep and superficial sutures. AMPUTATION THROUGH LOWER THIRD OF THIGH BY OBLIQUE CIRCULAR METHOD. Description. — Owing to greater retraction upon the posterior and inner aspects of the thigh, and in order, therefore, that the incision may eventually occupy the same height around the entire circumference of the limb, the circular incision is placed obliquely — so that it is lowest where the muscular retraction is greatest, namely, at the postero-internal aspect of the thigh. Position. — As in the transcondyloid operation. Landmarks. — Saw-line. Incision. — The highest part of the circular incision is antero-external and is a little more than half the diameter of the limb (at the saw-line) below the bone-section. The lowest part of the circular incision is postero-internal and is little less than one diameter of the limb (at the saw-line) below the AMPUTATION THROUGH LOWER THIRD OF THIGH. 445 bone-section — the two calculations of covering thus providing i^ diameters of covering in the aggregate. Such an incision is hard to follow unless pre- viously marked (Fig. 370, A). Operation.— The above incision through skin and fascia is made with Fig.370— Amputations about Thigh and Hip-joint :— A, Through lower part of thigh, by oblique circular method ; B, Disarticulation at hip-joint, by anterior racket. two strokes of a long knife — the limb being conveniently rotated during the manoeuvre, as described under the " Circular Method of Amputation," page 303. The skin and fascia are then obliquely retracted a short way, parallel with the original incision — and the more superficial muscles circularly, or 446 AMPUTATIONS. slightly obliquely, divided. These are further retracted and the deeper mus- cles circularly, or slightly obliquely, divided to and including the periosteum, to the bone — cutting each time parallel with the skin incision. The skin, mus- cles, and periosteum are freed up to just above the saw-line, and retracted— as in the ordinary infundibular form of circular amputation — and the bone sawed. The femoral, anastomotiea magna, descending branches of the external cir- cumflex, perforating and muscular branches will be cut and require ligature. The muscles are quilted in two tiers. The skin is sutured so as to make an antero-posterior scar. Comment. — (i) This may be called an elliptical method, as well as an oblique circular. It is not appropriate except at the lower third of the thigh — where it is excellent. (2) Where great difficulty is experienced in freeing back the soft parts, the circular operation may be modified by adding one or two short lateral vertical incisions, thus forming two antero-posterior in- tegumentary flaps — and dividing the muscles circularly after retracting the skin. This, however, constitutes the modified form of circular amputation. AMPUTATION THROUGH LOWER, MIDDLE, OR UPPER THIRD OF THIGH BY LONG ANTERIOR AND SHORT POSTERIOR FLAPS. Description. — Two U-shaped flaps of skin and muscle are raised, ante- riorly and posteriorly — the latter being one-fourth the length of the anterior and a little narrower at the base. Position — Landmarks. — As in the above operation. Incisions. — Anterior flap — is equal, in length, to i^ diameters of the thigh at the saw-line, and, in width, a little more than ^ circumference. It begins (on right side) (with thigh rotated outward) opposite the saw-line, at about the middle of its inner aspect, or a fraction behind — passes vertically down the inner side of thigh — rounds broadly across the anterior surface, at a distance below the saw-line equal to 1^ diameters, and into the outer aspect — and passes vertically upward (the thigh now rotated inward) to a corresponding point on the opposite side. Posterior flap — begins and ends at the upper limits of the anterior flap — rounding across the posterior surface at a distance below the saw-line equal to a half-diameter — the surgeon's hand passing beneath the thigh. In the above calculations, extra length is allowed, because of the extra retraction (Fig. 366, C). Operation. — The tissues outlined in the anterior flap are now picked up by the surgeon's left hand, and, along the line of the retracted flap, the muscles are divided obliquely from without inward and upward — so beveling the flap that its extremity will consist of skin and fascia alone. The muscle tissue will begin to enter into the formation of the flap just above the extremity, and in- creases in thickness to the bone — into contact with which the incision will come at about one-half to three-fourths the diameter of the femur below the saw-line, at which level the whole thickness of the muscle will be represented. The thigh is then elevated and the posterior flap similarly cut, being obliquely beveled from without inward and from below upward, leaving skin and fascia at the lower end of the 'flap and full thickness of the muscles at the upper end, where the bone is reached the same distance below the saw-line as in the anterior flap. At the level at which the bone has been reached in the upward cutting of the flaps, a circular sweep of the knife around the femur frees the periosteum. The soft parts, including the periosteum, are FLAP AMPUTATIONS OF THIGH. 447 then freed upward to just above the saw-line (which is everywhere easily accomplished except at the linea aspera posteriorly) and the bone sawed'. If the flaps have been made above the middle of the thigh, the femoral, pro- funda, descending branches of the external circumflex, and muscular branches will be cut in the anterior flap — and branches of the perforating arteries in the posterior flap. If the flaps have been made below the middle of the thigh, the descending branches of the external circumflex and muscular branches will be cut in the anterior flan — and the femoral, anastomotica Fig. 371. — Transverse Section through the Upper Third of the Left Thigh :— P, Adductor longus; A, Gracilis; B, Obturator nerve and vessels; C, Deep femoral vessels; D, Adductor magnus; E, Semimembranosus; F, G, Semitendinosus; H, Biceps; I, Sartorius; J, Rectus; K, Superficial femoral artery, vein, and saphenous nerve; L, Vastus internus; M, Crureus; N, Vastus externus; O, Gluteus maximus. (The cross-section modified from Braune.) magna, and branches of the perforating in the posterior flap. Suture the musculo-periosteal covering over the end of the bone. Quilt the heavy muscles of the flaps in at least two tiers, with buried chromic gut sutures. The anterior flap will drop over the end of the bone and be sutured to the posterior flap. The flaps are well supported by the pressure of the dressing, in which a posterior splint has been included — and the limb placed upon an inclined plane. Comment. — The flaps may be cut by transfixion, after outlining through skin and fascia — but less satisfactorilv. 44 8 AMPUTATIONS. AMPUTATION THROUGH LOWER, MIDDLE, OR UPPER THIRD OF THIGH BY EQUAL ANTERIOR AND POSTERIOR FLAPS. Description. — Same in all essential respects, except as to difference in length of flaps, as amputation by long anterior and short posterior flaps. Fig. 372. — Amputations about Thigh and at Hip-joint: — A, Through middle of thigh, by equal anterior and posterior flaps ; B, Disarticulation at hip-joint, by external racket method ; C, At hip-joint, by long anterior and short posterior flaps. Position — Landmarks. — As in the last operation. Incisions. — Anterior flap — is, in length, three-fourths the diameter of the limb at the saw-line. Posterior flap — is, in length, one diameter of the AMPUTATION OF THIGH JUST BELOW THE TROCHANTERS. 449 limb — its greater retraction eventually reducing its length to that of the anterior flap. The width of both is equivalent to half the circumference of the limb at the saw-line (Fig. 372, A). Operation. — As in the preceding. The vessels severed are also the same. Comment. — (i) The method by equal flaps is indicated only where the anterior tissues are limited. (2) Less sacrifice of length of limb is involved. (3) These flaps are frequently cut by transfixion, without even outlining through the integumentary tissues in advance — but such technic is not ad- visable. Fig- 373- — Cross-section through the Left Thigh at the Level of the Lesser Trochanter: — A, Sartorius; B, Rectus; C, Superficial femoral artery, vein, and anterior crural nerve; D, Profunda femoral artery and vein; E, Crureus; F, Iliacus; G, Tensor vagina? femoris; H, Pectineus; I, Vastus externus; J, Sciatic nerve and artery; K, Semimembranosus; L, Biceps and semitendinosus; M, Gluteus maximus; N, Adductor magnus; O, adductor brevis; P, Adduc- tor longus; R, Gracilis. (The cross-section modified from Braune.) AMPUTATION OF THIGH JUST BELOW THE TROCHANTERS BY EXTERNAL OVAL METHOD. Description.— Similar in principle to disarticulation of the hip-joint by the external racket method (page 458) — except that the vertical incision begins lower, and the bone is divided below the lesser trochanter. Position. — As in disarticulation of the hip-joint by the external racket method (page 458). Landmarks. — Great trochanter; lesser trochanter. 29 450 AMPUTATIONS. Incision. — With the limb adducted, rotated in and slightly flexed, the vertical portion of the incision begins over the prominence of the great tro- chanter, in the mid-outer aspect of the limb — passes vertically down the outer side of the thigh for about 10 cm. (4 inches) — thence the limbs of the oval diverge to pass over the anterior and posterior aspects of the thigh and meet in the center of its inner side, at a point about 5 cm. (2 inches) lower than the lower end of the vertical incision. Thus an inverted Y is formed upon the outer side of the thigh. Operation. — The skin and fascia are dissected up along the oval portion of the incision for about 5 cm. (2 inches). The vertical incision is then deepened to the bone. Through the vertical incision the shaft is freed as extensively as possible. The muscles are now circularly divided on a line with the retracted skin and fascia. The soft parts are entirely freed from the bone up to the saw-line — providing a musculo-periosteal covering when near that line. The soft tissues are retracted and the femur sawed. Ligate the femoral artery and vein, profunda artery and vein, internal circumflex, descending (and possibly transverse) branch of external circumflex, comes nervi ischiadici, and many muscular branches. Suture the musculo-periosteal flap. Quilt the muscles with two tiers of gut sutures, along both vertical and oval portions of incision. Suture skin in a horizontal line, forming externo-terminal scar. Include splint in dressing and place on an inclined plane. SURGICAL ANATOMY OF HIP- JOINT. Bones. — Os innominatum; femur. Articulations and Ligaments. — Capsular (with following auxiliary bands — pectineo-capsular, ilio-trochanteric, and ischio-capsular) ; ilio-femoral (also an auxiliary portion of capsular ligament); ligamentum teres; cotyloid; transverse; and synovial membrane. Synovial Membrane of Hip-joint. — Beginning at border of carti- laginous surface of head of femur — covers neck of femur within joint — is reflected to inner surface of capsular ligament — covers both surfaces of cotyloid ligament and fat at bottom of acetabulum — and is prolonged around ligamentum teres to head of femur. Muscles of Region of Hip-joint. — Mentioned in connection with the Thigh (page 436). Muscles in Relation with Hip-joint. — Anteriorly: — psoas and iliacus Posteriorlv: — pyriformis; gemellus superior; obturator internus; gemellus in- ferior; obturator externus; quadratus femoris. Superiorly: — straight and reflected tendons of rectus; and gluteus minimus. Internally: — obturator externus and pectineus. Bursae in Relation with Hip-joint. — Between great trochanter and gluteus maximus. Between vastus externus and gluteus maximus. Between front of joint, and psoas and iliacus (often communicating with joint). Movements of Hip-joint. — Flexion: — by psoas, iliacus, rectus, sar- torius, pectineus, adductor longus, adductor brevis, anterior fibers of gluteus medius, and minimus. Extension: — by gluteus maximus, biceps, semi- tendinosus, semimembranosus, gracilis. Adduction: — by adductor magnus, longus and brevis, pectineus, gracilis. Abduction: — by gluteus maximus, medius and minimus. Inward Rotation: — anterior fibers of gluteus medius, gluteus minimus, and tensor vaginae femoris. Outward Rotation: — posterior fibers of gluteus medius, pyriformis, obturator externus, obturator internus, SURFACE FORM AND LANDMARKS OF HIP-JOINT. 451 gemellus superior and inferior, quadratus femoris, psoas, iliacus, gluteus maximus, adductor magnus, longus and brevis, pectineus, sartorius. Arteries of Region of Hip-joint.— (a) From Internal Iliac— obturator; internal pudic; sciatic: ilio-lumbar; lateral sacral; gluteal, (b) From External Iliac — deep circumflex iliac, (c) From Femoral — see Arteries of Thigh, page 436- Veins of Region of Hip-joint.— Superficial:— tributaries of internal saphenous. Deep: — accompany corresponding arteries. See Veins of Thigh, page 436. Nerves of Region of Hip-joint.— (a) From Dorsal Nerves:— lateral cutaneous branch of last dorsal, (b) From Posterior Divisions of Lumbar Nerves: — cutaneous nerves from external branches of three upper posterior divisions, (c) From Lumbar Plexus: — ilio-hypogastric, ilio-inguinal, genito- crural, external cutaneous, anterior crural, obturator, accessory obturator, (d) From Posterior Divisions of the Five Sacral and First Coccygeal Nerves: — external branches, (e) From the Sacral Plexus: — muscular, superior gluteal, inferior gluteal, perforating cutaneous, pudic, small sciatic, great sciatic. The cross-section of the hip-joint is shown in Fig. 47. SURFACE FORM AND LANDMARKS OF HIP-JOINT AND VICINITY. Spine of the os pubis is palpable, and is nearly on a level with the upper border of the great trochanter — and the upper border of the great trochanter is on a level with the center of the hip-joint. Top of the great trochanter is about 2 cm. (f inch) below the level of the head of the femur. Great trochanter is from 7.5 to 10 cm. (3 to 4 inches) below the iliac crest, and a little in front of its center. Head of the femur lies just below Poupart's ligament — and just external to its center. Nelaton's line runs from the anterior superior iliac spine to the most prominent part of the tuberosity of the ischium. It runs through the center of the acetabulum and indicates the level of the hip-joint. Bryant's line — (with patient flat on back) — first line is dropped vertically to the table, from the anterior superior iliac spine; — second line passes, in a straight direction, in a line with the long axis of the thigh, from the top of the great trochanter to meet first line; — third line runs from the anterior superior iliac spine to the top of the great trochanter. On the damaged or diseased side, the second line will be shortened. Anterior superior iliac spine and the crest of the ilium are palpable. Posterior superior iliac spine is marked by a depression on each side of, and on a level with, the spinous process of the second sacral vertebra — and is just behind the center of the sacro-iliac articulation. The anterior inferior iliac spine is about 2 cm. (f inch) above the upper border of the acetabulum: Line from the posterior superior iliac spine to the outer part of the tuber- osity of the ischium will cross the posterior inferior iliac spine nearly 5 cm. (2 inches) below the posterior superior iliac spine — and the ischial spine about 10 cm. (4 inches) below the posterior superior iliac spine. Tuberosities of the ischia are palpable on either side of the anus, beneath the lower border of the glutei maximi, especially when the hip is flexed. They are covered, in standing, by the lower margin of the glutei maximi — and, when sitting, by the dense skin and fascia alone. 45 2 AMPUTATIONS. Third sacral spine is on a level with the lowest limit of the spinal mem- branes and the cerebrospinal fluid, and is opposite the upper border of the great sacro-sciatic notch. First piece of the sacrum is on a level with the spine of the ischium. Apex of the coccyx is just behind the last piece of the rectum. Gluteus maximus forms the rounded outline of the buttock — its lower border being more oblique and higher than the fold of the buttock. A line from the side of the coccyx to the lower border of the great trochanter corre- sponds with the lower border of the gluteus maximus. Fold of the buttock is caused by the creasing of the skin in flexion and extension, and does not correspond with the lower margin of the gluteus maximus but is lower and less oblique. The antero-internal margin of the acetabulum is about 5 cm. (2 inches) external to the pubic spine. Edge of the great sacro-sciatic ligament can be felt by pressing deeply under the lower edge of the gluteus maximus. Femoral artery is separated from the capsule of the hip-joint by the psoas magnus, upon which it rests. For the landmarks of the gluteal, sciatic, and pudic arteries, see under the Ligations of those arteries (pages 87, 84, and 85). Ossification in the head of the femur begins at the end of the first year, uniting with the shaft at the eighteenth year; — that in the great trochanter begins in the fourth year, and that in the lesser trochanter at the thirteenth to fourteenth year, uniting, in both cases, about the eighteenth year. The epiphyseal line of the head of the femur is entirely within the capsular ligament. GENERAL SURGICAL CONSIDERATIONS IN DISARTICULATION AT THE HIP- JOINT. The question of control of hemorrhage is the most serious problem in hip-joint disarticulations. The methods of hemorrhage-control are the following; — Wyeth's mattress- neeclles and tourniquet; elastic tourniquet; preliminary ligation of femoral; Senn's method; ligation of femoral during amputation; digital compression of the femoral, or of the external iliac, above the amputation-site; digital compression of the femoral in the flap, as cut; Trendelenburg's rod beneath the femoral vessels, with rubber tubing wound in figure-of-eight fashion over it; Thomas' Forceps Tourniquet. The first three of the above methods are the best. Such methods as pressure of the abdominal aorta, either extra- or intra-abdominally, or through the rectum, are now not usually resorted to. Only some form of circularly surrounding tourniquet controls hemorrhage from branches of the internal iliac, as well as from the femoral. When hemorrhage is once controlled, any form of disarticulation may be adopted. Manner of applying Wyeth's mattress-needles and tourniquet: — Two steel needles from 3 to 5 mm. ( T 2 g to T 3 ? inch) in diameter and 25.5 cm. (10 inches) in length are inserted and capped with corks (to prevent their points from injuring operator and assistants). The outer needle enters the tissues of the outer aspect of the thigh 6 mm. Q inch) below and just to the inner side of the anterior superior iliac spine — traverses the superficial muscles and fascia upon the outer side of the hip, and emerges on a level with, and about 7.5 cm. (3 inches) external to, the entrance. The inner needle enters GENERAL CONSIDERATIONS IN HIP-JOINT DISARTICULATION. 453 the tissues of the inner aspect of the thigh internal to the saphenous opening, and about 1.3 cm. (£ inch) below the crotch — traverses the adductors — and emerges 2.5 cm. (1 inch) below the tuberosity of the ischium. White rubber Fig. 374. — Manner of Inserting the Wyeth Pins: — The outer pin. tubing, about 7 mm. (J inch) in diameter, is wound tightly four or five times around the thigh above the fixation-needles, and clamped. This rubber -^^^ /^ --c \x i mm 0% * \ u C^j^ »-. Fig- 375- — Manner of Inserting the Wyeth Pins: — The inner pin. After both pins have been inserted, the rubber tubing is applied above them, as shown in their use at the shoulder-joint. band compresses the common femoral against the rim of the pelvis, anteriorly — and the gluteal, sciatic, and internal pudic against the margin of the great sacro-sciatic notch, posteriorly (Fig. 268, left hip). 454 AMPUTATIONS. Manner of applying the ordinary rubber tourniquet (Jordan Lloyd's method) — First elevate the limb to a vertical position, and hold thus for a few minutes, further aiding the emptying of blood from the limb by down- ward massage. A strip of sterilized roller bandage is laid down the outer, and one down the inner aspect of the thigh. A sterilized pad is placed over the external iliac artery. Rubber tubing, about 1.8 m. (6 feet) long, is passed around the thigh in several tight turns, over the pad and pieces of roller bandage. The center of these turns is placed between the tuberosity of the ischium and the anus (of the operated side) — the tubing being brought up so as to pass over the center of the iliac crest. The two ends of the tubing are finally grasped firmly in either hand and tightly drawn upward and forward and made to cross each other above the center of the iliac crest. At the point of crossing, an assistant, with the back of the hand (the right hand for the left side, and vice versa) to the patient's body, grasps and holds the crossed rubber band. Or the two ends may be carried around the trunk, brought back again, and make a second similar traversing as the first spica — the two ends being then tied, or clamped, above the center of the iliac crest (of the same or opposite side). The two roller bandages forming the two loops are now drawn upward to hold the tourniquet in place and lift it further from the field of operation — one coming up from in front of the anterior superior iliac spine, and the other from opposite the ischial tuberosity. The anterior part of the tourniquet, running above and parallel with Poupart's ligament, compresses the external iliac under the pad — the posterior part, running across the great sacro-sciatic notch, compresses the gluteal, sciatic, and internal pudic (Fig. 268, right hip). Manner of preliminary ligation of femoral: — see under Ligations, page 93, and Figs. 268 (left thigh) and 46. Manner of applving Senn's method of hemorrhage-control in disarticula- tion at the hip-joint— A straight incision of about 20 cm. (8 inches) is made over the central aspect of the great trochanter, in the long axis of the limb, and commencing about 7.5 cm. (3 inches) above the superior border of the great trochanter. As soon as the femur has been exposed and the head of the bone disarticulated, a pair of hemostatic forceps is introduced closed behind the femur, and on a level which would correspond with that of the trochanter minor when in normal position (that is, prior to disarticulation) — and is pushed inward and downward below the ramus of the ischium and just posterior to the adductor muscles — until felt through the skin on the inner aspect of the thigh, when an incision is made over its tip and the instru- ment oressed on through. By opening the blades, the tunnel through the soft parts is enlarged — and the forceps are then made to seize a piece of rubber tubing at its center and draw the doubled portion backward through the wound at the outer aspect of the thigh, leaving the free ends protruding through the inner opening. The portion of the tube grasped by forceps is then cut in two. The limb is now held elevated a few moments, during which the return of blood to the trunk is further aided by downward massage. The anterior half of the tube is then carried firmly around the anterior portion of the soft parts and tied or clamped — and the posterior around the posterior portion, and similarly tied or clamped — thus controlling all circulation prox- imal to the tubing — the tubing being prevented from slipping by the tun- neling of the soft parts. The operation is then completed. The method by Trendelenburg's rod (Fig. 376) and Thomas' Forceps Tourniquet (Fig. 377) are sufficiently described by their illustrations and legends. GENERAL CONSIDERATIONS IN HIP-JOINT DISARTICULATION. 455 I fig. 376. — Manner of Using Trendelenburg's Rod for the Control of Hemorrhage in Amputations near the Hip-joint: — The rod is thrust through the limb beneath the femoral vessels, which are then constricted by a rubber band wound in figure-of-eight fashion about the rod. (The cross-section adapted from Braune.) Where the disarticulation has been done by a method allowing of free exposure of the femur in advance of disarticulation, the shaft can be largely Fig. 377. — Thomas' Forceps Tourniquet for Controlling Hemorrhage During Operations upon the Extremities: — The probe-pointed blade passes under the femoral vessels, and the serrated blade over these structures — the former coming out through a pre- viously cut exit, after which the blades are clamped. freed subperiosteally — with the result that a sufficient growth of bone usually occurs to enable the stump to be freely moved in all directions. 456 AMPUTATIONS. Temporary drainage is indicated — and should be provided through an opening made posteriorly, if no dependent opening exist as a result of the operation. Sutures are left in an extra length of time — and the flaps are subsequently temporarily supported by strapping. The stump should be rather firmly bandaged and supported upon a pillow. DISARTICULATION AT HIP- JOINT, IN GENERAL. Best Methods.— Wyeth's Method. External Racket Method. Anterior Racket Method. Other Methods. — Furneaux Jordan's Method (external vertical incision, with circular division of muscles). Long Anterior and Short Posterior Flaps. Equal Anterior and Posterior Flaps. Equal Lateral Flaps. Antero-internal and Postero-external Flaps. Modified Circular Method. Single Internal Flap. Esmarch's Method (circular division of muscles and bone, with dissection out of the bone through an external vertical incision). DISARTICULATION AT HIP- JOINT BY WYETH'S METHOD. Description. — Having controlled hemorrhage by means of rubber-tubing wound around the thigh at its junction with the pelvis, above two large pins introduced in a special manner, a circular incision is made around the thigh, followed by a vertical external incision, and disarticulation at the hip-joint accomplished. Position. — Patient supine, drawn to foot of table until the sacrum rests upon the corner, with hip projecting beyond, and kept from slipping from table by being steadily held. Surgeon generally stands upon the outer side of both, thighs, although it is more convenient to be upon the inner side of the left limb. An assistant holds and manipulates the limb projecting over the table. Another assistant steadies the pelvis and guards the method of hemor- rhage-control. Control of Hemorrhage. — Special pins are introduced in the manner described under General Surgical Considerations (page 45 2). Previous to the application of the pins, the limb should be constricted by an Esmarch rubber bandage, from the toes to the hip-joint — unless contraindicated. Landmarks. — Great trochanter; points for the passage of the pins (page 389)- Incisions. — A circular incision is made around the thigh about 15.3 cm. (6 inches) below the center of the anterior aspect of the rubber tourniquet. The vertical incision passes vertically down the external aspect of the thigh, directly over the great trochanter — passing in a straight line from the tourni- quet to the circular incision (Fig. 378, B). Operation. — The circular incision passes through skin and fascia alone. These are dissected up to the level of the lesser trochanter— that is, for about 5 cm. (2 inches). At this level the muscles are circularly divided to the bone, on a line with the retracted skin and fascia. The vertical incision is now made from the tourniquet down to the circular division, passing directly over the great trochanter. The larger vessels are at once tied— the femoral and profunda arteries and veins, and any other prominent vessel. Through DISARTICULATION AT HIP-TOIXT. 457 the vertical incision, which has extended, at one sweep, directly through skin, fascia, muscles, and periosteum to the bone, the soft parts are all cleared, as subperiosteal!}- as possible, from the shaft and tuberosities of the femur. Retract the soft parts and divide the capsular ligament transversely over its Fig. 378.— Amputations through Thigh and at Hip-joint: — A, Through lower part of thigh, by modified circular; B, Disarticulation at hip-joint, by Wyeth's method. outer aspect. Manipulate the limb as a lever, nicking the cotyloid ligament to let in air — cut the ligamentum teres — and disarticulate by thrusting the head of the femur upward and outward. If not already severed, divide the posterior aspect of the capsule, and any retaining structures — and remove the limb. If the enucleation be difficult, which is rarelv the case in this 458 AMPUTATIONS. extensive exposure, the margin of the acetabulum can be chipped away with a chisel sufficiently to let in air — or, if all the vessels be ligatured, the tourniquet may be removed carefully and slowly and the disarticula- tion completed. The remaining vessels in the posterior aspect of the wound are now ligated — these are chiefly the branches of the sciatic, obturator, ex- ternal and internal circumflex, and perforating. Having trimmed away all tags of tissue, the heavy muscles are to be quilted together with especial care, by means of two or three tiers of chromic gut sutures. Drainage is to be established — the margins of the wound united in one continuous termino-external suture-line — firm compression made in dressing the wound — and the stump supported upon a pillow. Comment. — This method probably represents the safest, simplest, and best manner of disarticulating at the hip-joint. DISARTICULATION AT HIP- JOINT BY EXTERNAL RACKET METHOD. Description. — The queue of the incision is placed over the external aspect of the joint — the limbs of the incision encircling the anterior, internal, and posterior aspects of the thigh. Hemorrhage is controlled by an ordinary rubber tourniquet. Position. — Patient is sufficiently turned to the opposite side to expose the area, and is drawn to the end of the table so that the pelvis rests upon the edge of the table and the hips project beyond — the limb is adducted, rotated inward, and slightly flexed. Surgeon and 'assistants stand as in the last operation. Control of Hemorrhage. — For the description of the application of the rubber tourniquet, see General Surgical Considerations, page 452. Also see Hemorrhage-control, under the last operation, for reference to the Esmarch bandage. Landmarks. — Great trochanter. Incision. — The queue begins about 5 cm. (2 inches) above the upper border of the great trochanter — passes vertically down the limb, along the posterior border of the great trochanter, for about 17 cm. (7 inches) — the two limbs of the racket here diverge to encircle anteriorly and posteriorly, meeting upon the center of the inner aspect of the thigh, about 5 cm. (2 inches) lower down than the termination of the vertical portion of the incision — forming an inverted Y on the outer aspect of the thigh. The limb is rotated as the incision is made (Fig. 372, B). Operation. — These incisions pass, at first, through skin and fascia only. The skin and fascia of the oval portion of the incision are then dissected up for about 5 cm. (2 inches). The vertical portion of the incision is now deep- ened to the bone — with the limb in the original position. The anterior, superior, and posterior borders of the great trochanter are cleared of muscles in the order named — as subperiosteal^ as circumstances allow. The shaft of the femur is cleared, as far as possible, to the extent of the vertical incision. Adduct the limb strongly and divide the superior and posterior parts of the capsule transversely — flex the limb and divide the anterior part of the capsule — rotate outward and cut the round ligament — and then disarticulate. Having ascertained that the tourniquet is compressing the parts well, after the dis- articulation of the head of the femur, the muscles are circularly divided on a level with the retracted skin and fascia of the oval incision. The important DISARTICULATION AT HIP-JOINT. 459 vessels are at once ligated — consisting of the femoral and profunda arteries and veins, the internal circumflex (and possibly the transverse branch of the external circumflex), comes nervi ischiadici, and muscular branches. The muscles are quilted in two or three tiers, with buried chromic gut sutures, along both the vertical and oval portions of the wound. The suture-line of the skin margins will be termino-external, in one straight line. Comment. — The approach to the bone is through a region less vascular than by the anterior racket method. The hip-joint can be preliminarily examined, in case disarticulation prove unnecessary. Disarticulation can be effected before severing the vessels. The subperiosteal method can be more easily carried out than by an anterior approach. The branches of the internal pudic are comparatively little involved — there is a low transverse division of the muscles — and good drainage is secured. The method is probably better than disarticulation by the anterior racket method. DISARTICULATION AT HIP- JOINT BY ANTERIOR RACKET METHOD. Description. — The queue of the racket, or oval, is placed anteriorly — the limbs of the oval encircling the external, internal, and posterior surfaces. No tourniquet is used. The femoral is ligated during operation, and the remaining vessels as encountered. Control of Hemorrhage. — Utilizing the queue of the incision, the common femoral artery and vein are exposed and ligated — during the progress of the operation. Other vessels are secured as exposed. Position. — Patient supine — otherwise as in the external racket method (page 458). Landmarks. — Center of Poupart's ligament; course of femoral artery. Incision. — The queue begins at the center of Poupart's ligament — passes down along the femoral artery for about 7.5 cm. (3 inches) — thence curves inward and crosses the inner aspect of the thigh about 10 cm. (4 inches) below the genito-crural fold — continues across the posterior aspect of the thigh — crosses the outer side of the limb a short distance below the base of the great trochanter — and thence ascends upward and inward obliquely across the anterior aspect to join the vertical incision about 5 cm. (2 inches) below its commencement at Poupart's ligament (Fig. 370, B). Operation. — This incision passes well through skin and fascia only, which are allowed to fully retract — and is made with several sweeps of the knife, while the limb is manipulated as indicated. Through the vertical portion of the racket incision, the common femoral artery and vein are early exposed and each ligated in two places and severed between the ligatures. The skin and fascia are fully freed around the entire incision, without any special dissection. The muscles on the outer side (sartorius, rectus, tensor vagina? femoris) are divided and the external circumflex artery doubly ligated and severed. Passing backward, rotate the thigh inward and cut the insertion of the gluteus maximus. Passing forward, rotate the thigh outward and cut the psoas — and retract the parts and doubly ligate and divide the internal circumflex artery. Divide the muscles of the internal flap on a level with the retracted skin (pectineus, gracilis, and adductors), ligating the muscular branches. Adduct and rotate the thigh inward — severing the muscles attached to the great trochanter. Abduct and rotate the thigh outward — cut the capsule transverselv — disarticulate — sever the round ligament — and the 460 AMPUTATIONS. obturator externus tendon, if still undivided. The head of the bone is now drawn forward and outward — a long knife is carried behind the bone, passing downward and backward and dividing the remaining parts at the posterior aspect, on a level with the retracted skin (hamstrings, parts of the adductors and sciatic nerve) — ligating the perforating and muscular branches. The muscles are quilted in two or three tiers — after having severed all tags of tissue and instituted drainage. The margins of skin are sutured in a single vertical line. The stump is dressed as in the preceding operations. Comment. — While possessing many good points in common with the method by external racket incision, the anterior racket method possesses the further advantage that the hip-joint is more easily and directly reached, and disarticulation more readily accomplished. No special form of tourniquet control is necessary. There is, however, not so good an opportunity afforded for a preliminary examination of the hip-joint, with possible excision sub- stituted for amputation. The operation is longer, owing to the slower hemor- rhage-control. INTERILIO-ABDOMINAL AMPUTATION BY AX INTERNAL FLAP KEEN'S OPERATION. Description. — Consists of the removal of the entire lower extremity, with a portion or all of the ilium. Indicated in extensive growths in the region of the hip-joint. Position. — The patient is supine, with the hip-joint projecting over the end of the table, during the outlining and making of the internal flap — and is then turned toward the opposite side during the exposure of the iliac portion of the wound. Landmarks. — Spine of pubis; Poupart's ligament; crest of the ilium; posterior superior iliac spine. Incision. — Iliac incision extends from the spine of the pubis, 2 cm. (f in.) above and parallel with Poupart's ligament and the crest of the ilium to about its middle. Subsequently, after ligating the internal iliac artery, this incision is continued around nearly to the posterior superior iliac spine. Thigh incision begins just external to the middle of Poupart's ligament and passes downward to a point a little below the middle of the thigh — then horizontally to the median line of the thigh posteriorly — and then upward to the posterior end of the first incision, i. e., slightly external to the posterior superior iliac spine (Fig- 379)- Operation. — (1) Having divided skin, fascia, and muscles in the incision extending from the pubic spine, just above and parallel with Poupart's liga- ment and the iliac crest to about its middle, the internal iliac artery is exposed extra-peritoneally and ligated. (2) The long internal flap is now made. The incision is made just external to the center of Poupart's ligament, in order to preserve the femoral vessels — passing thence vertically down the anterior aspect of the thigh to just below its middle — where it rounds horizontally outward to the mid -posterior aspect — and thence vertically upward to the posterior end of the horizontal incision. Having outlined this incision through skin and fascia, it is deepened to the bone. At the transversely divided mus- cles, the femoral vessels are tied. This long internal flap, when turned upward and outward, will form the outer wall of the pelvis and will be the barrier against intestinal hernia. (3) Division of the muscles inserted into the crest of the Ilium;— Having continued the first part of the iliac incision nearly to the posterior superior iliac spine, all of the muscles of the anterior, lateral, INTERILIO-ABDOMINAL AMPUTATION. 461 and posterior abdominal wall lying beneath this incision are divided down to the peritoneum, the opening of which is carefully avoided. (4) The psoas magnus and iliacus internus are now separated from the internal aspect of the ilium, to be left with the trunk. If they be involved in the tumor-mass, they are to be sacrificed. (5) Removal of the bone; — The horizontal and descending rami of the pubic bone are divided — instead of disarticulating at Pig. 379 . — Lines of Incision for Keen's Interilio-abdominal Amputation. the symphysis. The attachment of the rectus abdominis is thus preserved, and consequently the firmness of support given thereby to the abdominal viscera. In order to preserve the sexual power in the male, the descending pubic ramus should be divided below the attachment of the corpus cavernosum of that side. Much time, difficulty, and hemorrhage are also saved in thus avoiding the separation of the rectus muscle and corpus cavernosum, and the disarticulation at the symphysis pubis. The ilium is now divided posteriorly by sawing from the crest of the ilium, near its junction with the sacrum, down 462 AMPUTATIONS. into the sacrosciatic notch. This avoids the difficulty and time involved in disarticulating at the sacro-iliac joint. If indicated, however, the small remain- ing portion of ilium thus left attached could be removed after the removal of the main portion of bone — and this would also apply to the small part of the pubic bone at first left. The entire lower extremity now comes away, with the detached ilium and the undisarticulated hip-joint. (6) The long internal flap is now brought upward and sutured so that its transversely divided end is applied to the iliac incision. The muscles are approximated by buried sutures — drainage is provided — and the skin closed. Pressure is made in the voluminous dressings, so as to sustain the weight of the heavy flap and exercise a supporting influence against the weakened pelvic wall. Comments. — Varying portions of the iliac bone have been removed — or the entire bone has been disarticulated. Where the bone is divided, this is best accomplished by the Gigli saw. Provision for infusion should be made in advance. CHAPTER XIII. EXCISIONS AND OSTEOPLASTIC RESECTIONS OF BONES AND JOINTS. GENERAL CONSIDERATIONS. Definitions. — Excision signifies a cutting-out. By Excision of Joints, is meant the removal of the articular ends (including cartilage and synovial membrane) of the bones entering into the formation of the joint, with a minimum injury to the neighboring parts. The articular extremities of the proximal and distal bones are removed, except in the cases of the shoulder- and hip-joints, where the articular ends of the humerus and femur, respec- tivelv. are alone removed, the articular cavities of the scapula and os in- nominatum being gouged or scraped. In Excision of Bones, the removal of a bone is, signified, with minimum injur}' to neighboring structures. In the Total Excision of a bone, the entire bone is removed, including its articular ends. In the Partial Excision of a bone, a part, only, of the bone is removed. By Resection, is meant the removal of the entire thickness of a bone (thus, a joint is said to be excised by the resection of the ends of its constituent bones) — but the terms excision and resection are generally used synonymously. Osteoplastic Resection signifies the temporary removal of a bone, or part of a bone, covered by its soft parts still attached, for the purpose of exposing more deeply seated structures — the cutaneo-muscular-osseous flap being re- placed later. Object of Excisions. — By the operation of Excision, in the case of the extremities, limbs are often now saved in a state of usefulness which formerly were entirely lost by amputation — thus marking one of the greatest advances of modern conservative surgery. General Features of Excisions. — (i) Total removal of all diseased tissue. (2) Preservation of a useful limb. The excessive removal of bone, or faulty repair of a wound, or improper after-treatment may result in a flail limb. A movable joint is to be expected everywhere, except in the case of the knee, where ankylosis is sought. (3) The removal of bare bone, free of its periosteum — with minimum disturbance to surrounding soft parts and neighboring bony parts. (4) Division of bones in such a manner, and at such an angle and height, as to place them in a position favorable to the formation of a new joint — or favorable to ankylosis in the most desirable position. The operation is rarely undertaken in the very young or in the very old. Indications for Excision. — Joint disease (generally tuberculosis); dis- ease of shaft or articular ends of bones; extensive injury to bone or joint; unreduced dislocation; ankylosis; deformity; compound dislocation or frac- ture; fracture-dislocation; ununited fracture. Preparation. — Locally, the part should be prepared as for any extensive operation — the part should be shaved, and should come upon the table in an aseptic dressing. Constitutionally, the patient should be gotten into a condition to stand a long operation — and, subsequently, to meet the demands of a prolonged convalescence. Previous to the operation, an apparatus 463 464 EXCISIONS. should be provided suitable for the double purpose of retaining the part immovable, and, when desired, of enabling passive movement to be accom- plished. In no other class of operations does the final result so largely depend upon the mechanical contrivance in which the part is to be subsequently held and passively exercised. Instruments. — Scalpels, light and heavy; bistouries, sharp and blunt; excision-knives (strong instruments, with good grasping handles and stout blades); scissors, straight and curved, sharp and blunt; saws, large and small, solid-bladed and open-bladed, broad and narrow, especially saws with ad- justable and revolvable blades, chain and Gigli saws, key-hole saw, Adam's pattern, Hey's pattern; forceps, dissecting, toothed, and artery-clamp; bone- holding forceps, of various sizes and curves; periosteal elevators, an especially large variety of straight, curved and angular, light and heavy; rugines and raspatories; retractors, angular and curved, toothed and smooth; spatula?, metal or ivory; directors, ordinary grooved and saw-directors; probes; chisels, narrow and broad, straight and curved; osteotomes, various; bone-gouges and curettes, of various shapes and sizes; drills; flushing-gouge; pins, pegs, and needles; wire; suture and ligature material of silk, gut, chromic gut, silkworm-gut, and wire; needles; needle-holders; Esmarch rubber bandage and tourniquet. Varieties of Excision. — A joint or a bone may be excised by either the subperiosteal or the open method. EXCISION BY THE SUBPERIOSTEAL METHOD. Description. — In this method it is sought to preserve the entire periosteum — from the site at which it is first reached in the operation — on upward or downward to the opposite limit of the wound. In the case of excising a joint, no periosteum covers the articular ends of the bones — the periosteum becoming merged into the fibrous tissue of the capsular ligament — and here a periosteo-capsular covering is separated continuously. The advantages of the subperiosteal method are: — (a) Production of new bone from the preserved periosteum; (b) Preservation of the capsule of the joint, with the ligaments attached to it — and hence a stronger and more useful joint; (c) Preservation of the attachment of tendons to neighboring periosteum — and hence additional strength and movement; (d) Less hemorrhage, and less damage to surrounding tissues, as, when the bone is once reached, the opera- tion is henceforth conducted in a comparatively safe area, between bone and periosteum (or between bone and periosteo-capsular covering); (e) The neighboring intermuscular planes (except to reach the bone) are not opened up — the operation-site being circumscribed by the periosteal or capsulo- periosteal sheath raised. The disadvantages of the subperiosteal method are the following: — (a) Possibility of retaining diseased periosteum; (b) Difficulty of the operation, and the likelihood of detaching the periosteum in shreds; (c) Time necessary for its performance. To summarize — the subperiosteal method is excellent in theory, but is often difficult, and some- times contraindicated, in practice. The subperiosteal method should be adopted whenever possible — and carried out as far as possible — where the periosteum is healthy. Always aim for the subperiosteal method, where the periosteum is healthy and there is no contraindication — and, if only partly successful, less damage will have been done to the neighboring tissues, and the result will be more satisfactory, than if the open method had been EXCISION BY THE SUBPERIOSTEAL METHOD. 465 undertaken from the start. As a result of a successful subperiosteal excision, bone is reproduced, refilling the periosteal cavity to a greater or lesser extent, and assuming a form largely determined by the limiting periosteum — being poured out, so to speak, into a mould of periosteum or capsulo-periosteum. Sometimes no new bone forms — sometimes an excess. Some reabsorption of the new bone occurs. Exceptionally, reproduction of shafts and joint surfaces of bones is remarkable — and the functioning almost normal. As to the peculiarities of the periosteum, — in the young, it is thick and easily detachable (and also more valuable); — in the old (and in cadavera) it is thinner and more adherent; — in chronic inflammation, it is easily detachable (but often less valuable here). Preparation. — (liven under General Considerations. Position. — Patient's limb is placed in such a position as to be most accessible to the surgeon, and, at the same time, most relax the overlying parts. Surgeon stands in the same general relation to the limb as in ampu- tating — to the outer side of right and inner side of left limbs. Assistant so stands as to steady the part or retract the lips of the wound. Special positions will be mentioned under special operations. Landmarks. — Will be mentioned under each operation. Preliminary Control of Hemorrhage. — While the same need for the control of hemorrhage does not exist as in the case of amputations, as no important vessels are ordinarily cut, yet, to avoid what hemorrhage would otherwise occur, and for the sake of having a clean, dry field, it is best to apply a rubber constrictor above the site of operation. If its application be preceded by elevation and proximal massage of the limb, less regurgitant bleeding will occur. Though oozing may be greater after the removal of an Esmarch than might be the case had it not been used, yet the advantages more than conterbalance the disadvantages. The constrictor should always be removed before suturing the wound, that all vessels which still bleed may be taken up. Incision. — An incision should be chosen which is simple — which passes to the joint or bone, by the most direct and safest route — which will do the minimum injury to the neighboring structures on its way to the site — which will fall in with the intermuscular planes — and, if possible, with the cleavage line of the skin. The incision should be fully long enough to admit of easy manipulation in the depth of the wound, upon which the subperiosteal method so largely depends. Generally a single straight cut is used. The incision usually passes at first through only skin and fascia — but, in some cases, passes directly to bone. Operation. — (1) If the primary incision have passed only through skin and fascia, an intermuscular plane is now sought, and, by lateral retraction of the lips of the wound and the underlying muscles, the bone is reached — with the least possible damage to the soft parts and without any further cutting, but simply by separation of fascial planes. In other instances, the way may be partly opened up by separation and retraction, and parti}' by cutting muscular tissue and less important vessels and nerves. In still other cases, the original incision passes directly to the joint or bone. In any event, the final incision passes down through the periosteum of the lower end of the proximal bone — through the capsule of the joint — and through the perios- teum of the upper end of the distal bone — all in one continuous sweep of a stout excision knife. (2) Having once gotten within the periosteum and capsule, the knife is laid aside and this capsulo-periosteal covering of the joint and articular ends of the bones — or the periosteum alone where only 3° 466 EXCISIONS. the interarticular portion of the bone is involved — is separated by means of periostea] elevators, which work constantly toward the bone, hugging it always. Where the tendons and muscles are inserted into the periosteum, these are levered off the bone by means of periosteal elevators and rugines — retaining their attachments continuous with the periosteum. In other words, in an ideal case, the osseous tissue is decorticated, or shelled out of its capsulo- periosteal sheath, leaving the periosteum and capsule intact and continuous, as well as the ligaments of the joint and the tendons in the neighborhood. (3) As soon as the articular ends have been sufficiently freed and bared in their capsulo-periosteal sheath, disarticulation is accomplished and the ends of the bones, in turn or together, are protruded through the incision, or in- cisions, and are excised just above their articular cartilages — the soft parts being protected during the sawing. (4) The sawed ends of the bones are now drawn back within their capsulo-periosteal covering. The tourniquet is then loosened and the vessels not tied during the steps of the operation which bleed are now tied. The edges of the capsulo-periosteal sheath are sutured together with catgut. But where muscles have been cut along the original incision, these are quilted with catgut. Even where no muscle- fibers are laid bare, but only the rounded borders uncut, it is well to quilt together such separated muscles, as the fascia covering them unites and fills the dead spaces and hastens repair of the wound as a whole. Temporary drainage is indicated in the larger excisions. The suturing of the skin should be done with silk or silkworm-gut — which is usually removed about the tenth day. Application of Retentive Apparatus, and After-treatment. — The future usefulness of the limb depends almost more upon the after-treatment than upon the manner of operation. There is hardly any set of operations in which the ultimate outcome is more dependent upon the care and manage- ment subsequent to operation. The usefulness of the limb also largely depends upon non-suppuration, or but limited and brief suppuration. While temporary drainage is at first indicated, the dressings should be dry and infrequent. In applying the first dressing, the limb may be immobilized upon almost any splint — often the permanent position, or method of treatment, cannot be adopted immediately. Or the limb, on the other hand, may be put up in its permanent and special splint from the first. This latter course is preferable when possible. In still another class of cases, as in operating for deformity, it may take some time to bring the limb into its permanent position. The kind of splint or retentive apparatus adopted is extremely important. It should be selected to do the special work in hand — and be very precisely applied. Its features are, — (a) that it should firmly grasp the limb above and below the excised joint — and (b) that it should be hinged, the hinge corresponding with the joint, so that from time to time the angle of the joint can be changed, while still retaining the relative relations of the ends of the bones. If mobility is to be expected, the ends of the bones should not be put up in direct contact — the amount of separation varying with circumstances — the separation being less in adults, and where much perios- teum has been saved, than in the reverse conditions. If ankylosis be desired, the ends of the bones should be put up in close contact in the position desired — and should be kept rigidly in contact until union is solid. As to passive movement, there is no fixed time at which it should begin. It should com- mence just as soon as acute inflammation and sensitiveness subside (generally in from one to three weeks). General good health, massage, and electricity all aid the favorable course of the traumatism and the final functioning. EXCISION BY THE OPEX METHOD. 467 What has been said of apparatus and after-treatment in connection with the subperiosteal method of excision, also applies equally to the open method. Comment. — (I) No vessels of importance are ordinarily injured in the operations of excision — but, if injured, should be ligated. (2) All synovial membrane, and even extra-articular tissue, must be removed if diseased. (3) Where muscles or tendons must be divided, their oblique division is preferable. In any event, they should be sutured with gut. (4) Extensive gouging, or curettage, is a legitimate substitute for typical excision, where the latter is impracticable — as where an epiphyseal cartilage might be de- stroyed. (5) Where ankylosis is sought, the synovial membrane should be thoroughly dissected away. (6) Retention of the periosteum gives firmness to the cicatrix, even where the amount of bone deposited is little or none — lessens the shortening of the limb — and helps retain the proper relational attachment of the muscles. A periosteo-capsular covering favors the repro- duction of a joint with articular cartilages, and gives support to ligaments. (7) Tendons often have to be removed with knife, cutting close to the bone — or may be chiseled away with a thin shell of bone. (8) The removal of tissue must not, ordinarily, be stopped short of the removal of the entire diseased structures. (9) The destruction of the epiphyses in young children should be avoided. (10) When the saw-section does not remove all of the involved bone, it is better to remove the balance with a gouge than to saw another section, (n) The gap of an excised bone may be filled by bone- grafting. (12) The periosteum is easily removable in chronic osteitis and synovitis — and hard to remove in acute periosteitis. EXCISION BY THE OPEN METHOD. Description. — No attempt is here made to preserve the periosteum. The continuous attachment, therefore, of periosteum and capsule is sacrificed — though the capsule is preserved. The tendons are peeled from their attach- ment to the periosteum — and some of the ligaments of the joints are sacrificed. The open method is more rapid, but more damage is done to the neighboring structures, and less satisfactory functioning of the joint is apt to follow. The chief indication for adopting the open method is found in those cases where, from disease, or other cause, the preservation of the periosteum is contraindicated. For further comparison, see under Description of the Subperiosteal Method, page 464. A reckless and careless sacrifice of capsule, tendons, and ligaments in the open method is distinctly unjustifiable. In undertaking the open method, even in disease, the operation should be carried out with the underlying idea of a "modified subperiosteal method as far as consistent." Preparation — Position — Landmarks. — As in the subperiosteal method. Preliminary Control of Hemorrhage. — The use of a constrictor is here indicated even more than in the subperiosteal method — as hemorrhage will, usually, be greater, from the greater damage to the involved parts. Incision. — The line of incision for the open method is generally the same as that for the subperiosteal method. Sometimes, however, the sub- periosteal excision of a joint is done through one incision — and the open excision through another. Whether the position of the line of incision be the same or not, the manner of making it and of reaching the level of the bone, or joint, are the same. Operation.— Up to the point of reaching the level of the joint, or bone, 468 EXCISIONS. there is no difference between the open and subperiosteal methods of excision. Once the bone is reached in the open method, however, no attempt is made to preserve the periosteum — although the soft parts are disturbed as little as possible. The periosteum is not cut through over the bones above and below the joint. The muscles and tendons are detached — not cut, but peeled — from the bones as closely as possible. While some of the ligaments of the joint are saved, some are unavoidably lost. This separation is accom- plished by rugines, raspatories, and by stout excision knives, rather than by periosteal elevators. The capsule of the joint is cut into as soon as the articular region is sufficiently exposed and cleared. The bones are then disarticulated and their ends protruded and sawed off, during which the soft parts are well protected. The ends of the bones are now drawn back into their musculo-capsular (rather than periosteo-capsular) sheath — the con- strictor relaxed — the vessels ligated — the cut or separated muscles quilted — and the limb put up and subsequently treated as in the subperiosteal method. Application of Retentive Apparatus, and After-treatment — Com- ment. — As in Excision by the Subperiosteal Method (page 464). EXCISION OF COCCYX BY POSTERIOR MEDIAN INCISION. Description. — Separation of coccyx at sacrococcygeal articulation and removal from its bed of soft parts. Position. — Patient on side at edge of table; thigh flexed; buttocks sepa- rated. Landmarks. — Tip and outline of coccyx, and position of sacrococcygeal articulation. If necessary, this articulation may be determined by means of a gloved finger introduced within the rectum and the coccyx palpated between this finger within and the thumb without. Incision. — Begins in middle line, just above sacrococcygeal articulation — passes vertically downward — and ends just below the tip of the coccyx. Operation. — Incise through skin and fascia to the bone. Separate the gluteus maximus from the posterior surface — the coccygeus from the anterior surface — the sphincter ani from its tip in front and the levator ani from its tip behind — and the sacrococcygeal ligaments from its upper aspect — hugging the bone closely and putting the parts upon the stretch after freeing the tip — thus completing the disarticulation. Sometimes the bone may be more easily removed by freeing its posterior aspect and lateral borders — then dis- articulating and levering out its upper end — and, while this is being drawn backward, its anterior surface is freed from above downward. The incised muscles are sutured together deeply with buried gut — and the superficial wound closed. OSTEOPLASTIC RESECTIONS OF BONES AND JOINTS. Description. — An osteoplastic operation, in general, consists in the ap- proximation of fresh sections of bone to each other, for the purpose of bringing about union between their opposed aspects. The surfaces brought thus into contact may have been originally in contact, as the margin of an oval of bone turned back from the skull and afterward dropped into its old place, — or some new bony contact may be brought about, as when, after total excision of the tarsus, the sawed ends of the metatarsals are approximated EXCISIONS ABOUT THE SUPERIOR MAXILLA. 469 to the sawed ends of the tibia and fibula. Osteoplastic Resection of a Bone consists in the resection, or cutting through, of a bone in such a way as to leave its soft coverings attached, and, in addition, a hinge-like connection of soft parts connecting it with the neighboring bone from which cut — and in then turning, that is, breaking, back the portion of bone, with its soft cover- ings adherent and soft hinge intact, in some convenient direction, thus ad- mitting of free access to the underlying structures sought in the special opera- tion — and of subsequently, upon completion of the object sought, turning the bone-flap, or bone part, with its connected soft parts, back into its original place — union of the bony surfaces being expected and a reproduction of the status ante quo — as in the osteoplastic exposure of the brain. Osteoplastic Resection of a Joint is an operation in which, after the ordinary excision of the joint, the sawed bony surfaces immediately beyond the joint are brought into contact for permanent union — and, therefore, implies that no motion is to be expected in that region. The excision of the knee-joint, or of any other joint, where ankylosis is expected, or results, whether expected or not, is, consequently, not, properly speaking, a simple excision, but an osteoplastic excision or resection. In another sense an osteoplastic resection of a joint may consist of a technic some part of which involves the temporary severing of a neighboring part of bone to reach the joint, after accomplishing which the severed bone is sutured back into place — as the temporary removal of the acromion to reach the shoulder-joint by Kocher's method (page 503). General Surgical Considerations. — (i) The osteoplastic resection of a bone, as to the manner of its performance, is done, in all practical respects, in the same way as an excision of a bone — except that the soft parts are not cleared from the surface of the bone entering into the osteoplastic flap, and that the hinge-like connection of soft parts between the bone-flap and the main bone, or bony surroundings, is disturbed as little as possible. (2) The osteoplastic resection of a joint is performed, as far as the excision itself is concerned, in precisely the same manner as an ordinary excision of a joint — except that after the removal, or excision of the joint surfaces, the cut surfaces of the bones beyond are brought into permanent contact — and solid bony union sought, or a neighboring process of bone may be temporarily removed to reach the joint, as described above. SURGICAL ANATOMY INVOLVED IN EXCISIONS ABOUT THE SUPERIOR MAXILLA. Articulations of Superior Maxilla. — With frontal; ethmoid; nasal; lachrymal; malar; inferior turbinated; palate; vomer; and its fellow. Muscles Attached to Superior Maxilla. — Orbicularis palpebrarum; inferior oblique; levator labii superioris akeque nasi; levator labii superioris; levator anguli oris; compressor nasi; depressor alae nasi; dilator naris poste- rior; masseter; buccinator; internal pterygoid; orbicularis oris. Arteries in Neighborhood of Superior Maxilla. — Facial and its follow- ing branches: — superior coronary, arteria septi nasi, lateralis nasi, angular, muscular (masseter and buccinator). From temporal: — transverse facial. From internal maxillary: — anterior dental, alveolar or posterior dental, descending or posterior palatine, pterygopalatine, sphenopalatine, infra- orbital. From ophthalmic: — inferior palpebral. Veins in Neighborhood of Superior Maxilla. — (1) Superficial:— Facial, with its following tributaries,— angular, superior and inferior lateral nasal, inferior palpebral, infraorbital, anterior internal maxillary (deep facial, 47° EXCISIONS. between buccinator and masseter muscles), superior coronary, transverse facial, and muscular branches (masseter and buccinator). (2) Deep: — veins corresponding to branches of internal maxillary artery, forming the pterygoid plexus (situated on the inner surface of the internal pterygoid and partly around the external pterygoid) — ending, anteriorly, in the anterior internal maxillary (or deep facial), joining the facial vein — and ending, posteriorly, in the internal maxillary vein, which unites with the common temporal vein to form the temporomaxillary vein Chief Nerves in Neighborhood of Superior Maxilla. — (1) From facial: — malar; supraorbital branches of temporofacial division; and buccal branch of cervicofacial division. (2) From superior maxillary division of fifth nerve: — malar; posterior superior, middle superior, and anterior superior dental; Fig. 380. — Skin Incisions in Excisions about the Maxill.k: — A, Excision of superior max- illa, by median incision (Fergusson's operation); B, Excision of inferior maxilla. palpebral; nasal; labial. (3) From sphenopalatine ganglion — anterior (large) palatine; middle (external) palatine; posterior (small) palatine; superior nasal branches; nasopalatine; upper posterior nasal. Other Structures in Neighborhood of Superior Maxilla. — Eye; nasal duct; antrum of Highmore. Surface Form and Landmarks of Superior Maxilla. — The superior maxilla forms the largest part of the face — the outer wall and larger part of floor of nose — the larger part of roof and part of outer wall of mouth — and part of floor of orbit. General Surgical Considerations in Operations upon Superior Maxilla. — See under Description and Comment, in Excision of the upper jaw, pages 471 and 473. EXCISION OF SUPERIOR MAXILLA. 47 1 EXCISION OF SUPERIOR MAXILLA BY MEDIAN INCISION — FERGUSSON'S OPERATION. Description. — Ordinarily refers to removal of superior maxilla of one side, as herein described — more rarely, to the removal of both superior maxilla-. The entire bone is removed — except the upper part of the nasal process. In addition to the removal of the entire bone, the following additional bones are removed, in whole or in part: — lower part of malar; part or whole of palate bone; whole inferior turbinated. Preliminary Steps to Excision. — Preliminary tracheotomy is often per formed, with plugging of the larynx, or the use of a tampon-cannula. Pre- liminary exposure of the external carotid, with temporary ligation of the vessel during the operation, is also often performed. Both of these steps are indicated in difficult cases where especial trouble is antici- pated. Position. — Patient supine; head and shoulders well elevated; face turned to sound side; region shaved; posterior nares plugged (for earlier part of operation). Surgeon to right side in either case. Assistant oppo- site surgeon. Landmarks. — General contour and boundaries of superior maxilla. Incisions. — Median Incision — begins about 1.3 cm. (\ inch) below the inner canthus — passes down in the naso-facial groove- — curves around convexity of ala nasi — passes along margin of nostril, in naso-labial groove, to mid-line of lip — and thence downward through the center of the upper lip. Horizontal Incision — passes from the beginning of the median incision along the lower border of the orbit, to end over the malar bone beyond the outer canthus (Figs. 380, A, and 381, A, B, C). Operation. — (1) The above incision passes everywhere to the bone. While incising from the inner canthus to the septum nasi, and from the inner canthus to the malar, the facial artery is compressed over the inferior maxilla. Just before dividing the upper lip, the lip is compressed on either side of the median line, between thumb and finger, and, when severed, the superior coronary arteries are tied while still compressed. In this median incision are cut the following arteries and corresponding veins — angular, lateralis nasi, superior coronary, arteria septi nasi, and branches of the infraorbital. In the horizontal incision, branches of the infraorbital and transverse facial are cut. (2) Dissect up the flap included in the above incisions — clearing the surface of the superior maxilla as completely as possible, though not subperiosteal!}'. The infraorbital artery is divided during this stage. (3) Detach the nasal cartilages from the bone. Divide the nasal process of the superior maxilla with a fine saw, from the junction of the nasal process with the lower border of the nasal bone, to the margin of the orbit just below the canal for the nasal duct. (4) Raise the periosteum from the floor of the orbit, including the origin of the inferior oblique, and retract them upward, carefully protecting the eye-structures. With a fine, narrow chisel, chisel obliquely across the orbital plate, from the end of the saw-cut dividing the nasal process, to the anterior end of the sphenomaxillary fissure. (5) The orbital and external surfaces of the malar bone are now cleared, the former subperiosteallv, preparatory to sawing. A chain or Gigli saw is then guided 472 EXCISIONS. into position through the sphenomaxillary fissure and zygomatic fossa, upon a curved carrier, or aneurism- needle, closely hugging the bone — and the malar bone divided ob- liquely through its middle, from the anterior end of the sphenomaxil- lary fissure downward and out- ward to the center of its lower free border. (6) Extract the cen- tral incisor tooth of the involved side. Divide the muco-periosteal covering of the hard palate in the median line along the intermax- illary and interpalatal sutures, from the alveolar process to the posterior nasal spine. Similarly divide the muco-periosteal cover- ing of the floor of the nose, with a long knife, cutting as near the septum as possible, from the pos- terior nasal spine to the anterior nasal spine. Make a transverse incision across the roof of the mouth, at the junction of the hard and soft palates, and separate the latter from the former. Pass a long, narrow saw in through the nose, seeing that its tip passes through the interval between the separated hard and soft palates (not injuring the latter), and divide the horizontal plate of the palate and palatal and alveolar portions of the superior maxillary bone as nearly in the central line as the septum nasi will allow. The descending palatine and nasopalatine arteries are cut here and bleed freely. (7) Grasp the superior maxilla with large bone-forceps, catching the orbital and alveolar aspects of the bone, and gently wrench it from side to side to determine the position and extent of the remaining connections which still hold it in place. The two remaining bony connections are, part of the orbital plate, and the union between the pterygoid processes and superior maxilla. These are generally severed with cutting forceps. The former is more accessible. The latter, after depressing the inferior maxilla, and freeing the outer and posterior surfaces of the superior maxilla, is separated by means of angular bone-cutting forceps introduced within the mouth and passed up behind the maxillary tuberosity — being sure that the soft palate has been entirely separated and held out of the way. Or, after depressing the inferior maxilla, a chisel may be used between the superior maxilla and pterygoid process. The superior maxilla is thus drawn away in the hold of the large forceps, after all bony connections have been divided. The posterior dental, pterygopalatine, and infraorbital arteries are here severed. (8) All bleeding vessels are now secured, and remaining hemorrhage controlled by temporary gauze packing. The wound is sutured throughout — and with especial care* through the upper lip, to avoid disfigurement. Drainage is established through the mouth. Feeding is done by a tube for a time. An artificial palate is generally worn after the operation. Fig. 381. — Bone Sections in Excisions about the Maxill/E: — A, B, C, Lines of bone-division in excision of right superior maxilla, by Fergusson's method; D, Line of division of inferior maxilla, in excision of left inferior maxilla, or in the osteoplastic resec- tion of the lower jaw, by median section. CHOXDROPLASTIC RESECTION OF NASAL CARTILAGES. 473 Comment. — (I) No attempt is made to remove the superior maxilla subperiosteal!}' in 'the above operation. (2) Preservation of branches of the facial nerve is important. (3) While the above method of freeing the bone from its final attachments is to be preferred, yet if difficulty be experienced in severing the ptervgomaxillary connections by cutting forceps, the superior maxilla may be separated from the pterygoid processes by a quick downward wrench, tearing it away from its bony attachments. (4) The upper jaw may also be excised by the methods of Velpeau, Langenbeck, Liston, Gensoul, Nelaton, Boeckel, Oilier, and others. Partial Excisions of the Superior Maxilla. — The following parts of the upper jaw may be done through special incisions, — (a) Alveolar and palate processes, — (b) Orbital and nasal portions, — (c) All the superior maxilla below the infraorbital foramen, — (d) All the superior maxilla except the orbital plate. OSTEOPLASTIC RESECTION OF SUPERIOR MAXILLA BY VERTICAL AND HORIZONTAL INCISIONS. Description. — Having made the same incisions, preceded by the same preliminaries, as in the ordinary excision of the upper jaw by Fergusson's method (page 471), and carried them everywhere to the bone — the soft parts are carefully guarded, and are nowhere freed from the bones, except in so far as necessary to reach the bones in making the original incisions. The bones are now divided just as in that operation, everywhere along the line of skin incision — except that no division of the bone is made from the anterior end of the sphenomaxillary fissure through the malar — this portion of bone being preserved for the "hinge." When all other connections have been divided, the bone, with its soft parts adherent, is broken outward and back- ward through the above indicated undivided portion as a hinge — by putting pressure from without over the region where the bone is to be broken back, and then prizing it outward and backward in that direction. At the end r>f the operation, the flap of bone and soft parts is turned back into place — and, if necessary, the bone wired. Comment. — It is better to previously divide the frontal process of the malar, making a limited incision for that purpose, prior to turning back the bone — thus avoiding the uncertainty of the line of breakage and possible harm that might result to neighboring structures through the rougher manoeuvre. CHONDROPLASTIC RESECTION OF NASAL CARTILAGES TO EXPOSE NOSE AND ANTERIOR NASOPHARYNX PA* NASAL ROUTE, BY TRANS- VERSE INCISION — ROUGE'S OPERATION. Description. — The cartilaginous portion of the nose is temporarily separated from the bony nares and turned upward. Position. — Patient supine, with head elevated and thrown back. Landmarks. — Line of reflection of mucous membrane of upper lip. Incision and Operation. — An assistant stands behind the head and draws the upper lip well upward, holding it opposite the angles of the mouth. The surgeon, standing in front, with scissors curved on the flat, cuts the mucous membrane in the line of its reflection from the superior maxilla, from one bicuspid tooth to the opposite one, hugging the bone throughout. Simi- larly separate the cartilaginous septum from the anterior nasal spine, and alar cartilages from the lateral borders of the maxilla. Having retracted 474 EXCISIONS. the cheeks well, the anterior naris is now turned upward and backward toward the forehead. At the end of the operation, the nose is dropped back into place and the cut edges of the mucous membrane sutured, if sufficient free margin exist — but suturing is not necessary. Comment. — This operation gives imperfect access to the nasopharynx — ■ but satisfactory access to the nose. The cheeks must be sufficiently separated from the underlying bones to enable the nose to be turned back. OSTEOPLASTIC RESECTION OF SUPERIOR MAXILLA TO EXPOSE NASOPHARYNX BY PALATINE ROUTE, BY TRANSVERSE AND Ml MIAN INCISIONS — ANN ANDALE'S OPERATION. Description. — After having exposed the bony anterior nares as in Rouge's operation, the alveolar and palatal processes of the superior maxilla are divided in the median line, and the septum nasi also divided. The two halves of the superior maxilla can then be separated from 1.3 to 2.5 cm. (J to 1 inch). Position. — Patient supine, head elevated and thrown back. Surgeon faces patient. Landmarks. — Anterior and posterior nasal spines; septum nasi; two central incisors. Incisions. — Transverse Incision — through mucous membrane of upper lip (this portion of the operation being similar to Rouge's). Median Incision — follows the base of the septum nasi, as near to the middle line as possible, and extending along the floor of the nose from the margin of the posterior bonv nares to the anterior bony nares, and along the alveolar process of the superior maxilla between the two central incisors, possibly extracting one. Operation. — Expose the bony anterior nares as in Rouge's operation (page 473). Divide the septum nasi just above the maxillary attachment, from before backward, with a fine narrow saw, or with cutting pliers. Having gagged the mouth open, separate the soft from the hard palate by a short transverse incision crossing the median line. If necessary, the soft palate may be divided. Drill holes in the alveolar process for future wiring. By means of a fine, narrow saw, introduced through the nose, divide the entire length of hard palate and alveolar process of superior maxilla, in the median line. The two halves of the superior maxillae are now prized apart and the nasopharynx reached with instruments. Upon the completion of the opera- tion, the alveolar process is wired and the soft palate sutured back to the soft tissues of the hard palate (and together, if divided). The nose-flap of Rouge's operation is dropped back into place and the mucous lips of the wound closed. Comment. — The room thus furnished is not great. The above operation may be considered the first step of an osteoplastic resection of the entire superior maxilla. OSTEOPLASTIC RESECTION OF SUPERIOR MAXILLA TO EXPOSE NASOPHARYNX BY MAXILLARY ROUTE, BY TWO SEMILUNAR INCISIONS — LANGENBECK'S OPERATION. Description. — A tongue-shaped flap, having its base over the nose and its apex over the malar bone is turned forward and inward upon the nasal bone and nasal process of superior maxilla as a hinge. Position. — Patient supine; head elevated and turned to opposite side Surgeon on side of operation. EXCISIONS ABOUT THE INFERIOR MAXILLA. 475 Landmarks. — Naso-frontal suture; ala nasi; malo-zygomatic arch. Incisions. — Upper Incision — begins at root of nose and passes down- ward and outward just below the lower border of the orbit, ending a short distance posterior to the center of the malar. Lower Incision — begins at ala nasi and passes upward and outward across the cheek, joining the outer end of the upper incision. These united incisions may extend further out- ward as a single incision along the zygoma, if necessary. Operation. — (1) Incise everywhere through skin, fascia, and muscles, and through periosteum to bone. Separate the periosteum for only a wide enough interval along the lines of incision for a saw to travel — except along the floor of the orbit, where it is stripped to the anterior end of the spheno- maxillary fissure. The masseter is detached from the malar where exposed. The soft parts are not otherwise raised from the bone. (2) Depress the inferior maxilla and pass a sharp periosteal elevator, or pointed director, below the inferior border of the zygoma, opposite its junction with the malar, and thrust it horizontally through the pterygomaxillary fissure to the outer wall of the nasal cavity, which is recognized by a finger in the mouth. Upon this guide, introduce a fine key-hole saw and divide the zygomatic arch upward — continuing the section so as to enter the sphenomaxillary fissure, cutting the posterior wall of the superior maxilla and following the floor of the orbit nearly to the lachrymal bone. If possible, however, it is better to make the saw section follow the line of the upper semilunar incision, thus avoiding the orbital plate. (3) The saw is again passed into the pterygo- maxillary fissure and made to cut forward and downward, passing through the walls of the antrum and into the anterior nasal cavity near its floor — following, approximately, the line of the inferior semilunar incision. (4) Pass the periosteal elevator into the pterygomaxillary fissure and prize the severed portion of the superior maxilla upward and inward — bending it over the nasal bone and nasal process of the superior maxilla (which fracture in the act) as a hinge. (5) At the end of the operation, turn the displaced bone, with its soft coverings attached, back into place — and suture the wound. Comment. — Next to the osteoplastic resection of the entire bone, the above operation gives freer access to the nasopharynx than does any of the other partial osteoplastic resections mentioned. SURGICAL ANATOMY INVOLVED IN EXCISIONS ABOUT THE INFERIOR MAXILLA. Ligaments of Temporomaxillary Articulation. — External lateral; internal lateral; stylomaxillary; capsular; interarticular fibrocartilage. Two svnovial membranes. Muscles Attached to Inferior Maxilla.— To Outer Aspect; — levator labii inferioris; orbicularis oris; depressor labii inferioris; depressor anguli oris; platvsma myoides; buccinator; masseter. To Inner Aspect; — Genio- hyoglossus; geniohyoid; mylohyoid; digastric; superior constrictor of pharynx; temporal; internal pterygoid; external pterygoid. Arteries in Neighborhood of Inferior Maxilla. — Facial and following branches: — submaxillary, submental, muscular (pterygoid, masseter, buc- cinator), inferior labial, inferior coronary. Internal maxillary and following branches: — tympanitic, middle meningeal, inferior dental, pterygoid, masse- teric, buccal. From temporal: — transverse facial. (The internal carotid lies considerablv to the inner side of the lower jaw.) Veins in Neighborhood of Inferior Maxilla. — Superficial; — facial, 476 EXCISIONS. with its following tributaries; transverse facial, inferior coronary, inferior labial, submental, submaxillary, muscular (pterygoid, masseter, buccinator). Superficial and Deep; — external jugular and its tributaries; common tem- poral, internal maxillary, communicating branch from the facial to external jugular. Deep; — veins corresponding to the above branches of the internal maxillary artery. (The internal jugular vein lies considerably to the inner side of the lower jaw.) Chief Nerves in Neighborhood of Inferior Maxilla. — From facial; — buccal, supramaxillary and inframaxillary branches of cervicofacial division. From inferior maxillary division of fifth nerve; — internal pterygoid, masse- teric, temporal, buccal, external pterygoid, auriculotemporal, lingual, inferior dental. (The glossopharyngeal and hypoglossal are considerably to the inner side of the inferior maxilla.) Other Structures in Neighborhood of Inferior Maxilla. — Parotid gland; submaxillary gland; sublingual gland. Surface Form and Landmarks of Inferior Maxillary Region. — (i) Steno's duct of the parotid gland crosses the ascending ramus of the inferior maxilla horizontally, about 2 cm. (f inch) below and parallel with the zygo- matic arch — the transverse facial artery lying above and the facial nerve below it. (2) The facial nerve crosses the parotid gland forward and slightly downward, from the junction of the anterior border of the mastoid process and the ear. (3) The facial artery crosses the inferior maxilla at the anterior border of the masseter muscle — the facial vein lying just behind. EXCISION OF TEMPOROMAXILLARY ARTICULATION BY ANGULAR INCISION. Description. — Consists in removal of condyle of inferior maxilla. The interarticular fibro-cartilage of the joint and the glenoid cavity are, ordinarily, not disturbed. Position. — Patient's head and shoulders elevated; faced turned to oppo- site side. Surgeon on side of operation. Assistant opposite. Landmarks. — Ascending ramus and condyle of inferior maxilla. Incision. — Vertical portion — begins at lower border of zygoma and passes vertically downward anterior to the temporal artery (which is about 2 cm., f inch, in front of the tragus), ending just above the transverse facial artery (which is from 1.3 to 2 cm., ^ to -| inch, below the zygoma). Horizontal portion — passes forward along the lower border of the zygoma for about 4 cm. (i£ inches). (Fig. 382.) Operation. — Incise through skin and fascia and turn the triangular flap thus raised downward and forward. Be on the lookout for the transverse facial artery, Steno's duct, and facial nerve, all crossing parallel with the zygoma from behind forward, and in the above order from above downward. Retract the lower border of the wound downward to avoid these — and the vertical border backward, with the anterior margin of the parotid gland. Incise whatever portion of the masseter fibers are encountered along the lower border of the zygoma — and along the ascending ramus, if any extend into the field. Incise the capsule of the joint vertically and expose the condyle. Clear the circumference of the neck of the condyle, as near the condyle itself as possible, closely hugging the bone — leaving some of the lower fibers of the external pterygoid, if feasible. Conduct a Gigli saw around the neck of the bone and divide it just below the condyle. This is better than dividing it by chisel or pliers. Seize the condyle with bone-forceps and divide any EXCISION OF INFERIOR MAXILLA. 477 remaining connections, while putting traction upon the end of the bone — preserving the capsule as intact as possible. Suture the capsule with buried gut. If the masseter have been extensively removed from the zygoma, suture it back to the periosteum. Establish temporary drainage. Close the angular wound — and dress the jaw closed. Comment. — (I) Both temporomaxillary articulations may require simul- taneous excision. (2) The joint may be less satisfactorily excised from within the mouth. Fig. 382. — Incisions about the Inferior Maxilla: — A, Skin incision in excision of temporomaxillary articulation by angular incision; B, Bone section in osteoplastic resection of lower jaw by lateral section. EXCISION OF INFERIOR MAXILLA BY SINGLE INCISION ALONG INFERIOR AND POSTERIOR BORDERS. Description. — Ordinarily refers to the removal of the inferior maxilla of one side. Both sides may be removed. The bone is removed subperiosteally, when the preservation of the periosteum is not contraindicated. Position. — Patient supine; head and shoulders elevated; head to opposite side; face shaved. Surgeon on side of operation. Assistant stands opposite. Landmarks. — General contour of bone, especially its inferior and poste- rior borders. Incision. — Begins in the midline of the chin, just below the free portion of the lip — passes down the front of the chin well around its prominent border — thence follows the lower border of the inferior maxilla, passing a little nearer the posterior than the anterior aspect of the border (in order to hide the scar) to the angle — thence upward along the posterior border of the ascending ramus — ending about opposite the center of the ascending ramus (about opposite the lobule of the ear). (Fig. 380, B, and 381, D.) Operation. — (1) This incision is everywhere carried through skin, fascia, platysma, and periosteum to bone — except over the facial artery, where the 478 EXCISIONS. skin alone is incised. The facial artery is then regularly exposed, doubly ligated and cut between the ligatures. (2) All the structures (see Surgical Anatomy, page 475) covering the outer surface of the inferior maxilla are now raised subperiosteally, working from the free border of the bone toward the alveolar margin, and from the symphysis toward the angle and upward along the ascending ramus. The mental vessels and nerve are divided at the mental foramen. The strong attachment of the masseter muscle is difficult to free from the margin of the angle, except with a sharp rugine, after having cut through the periosteum to the bone. The bone is closely hugged every- where. The clearing is continued as high up the ascending ramus as can be reached with the bone in situ. (3) The structures along the inner aspect of the horizontal ramus of the jaw are now similarly separated subperiosteally, in the same order as upon the outer surface, as far as they can be reached. Guard against injuring the submaxillary and sublingual glands. (4) The mucous membrane is then divided along the alveolar margin, on the outer and inner sides — all the muscles having been freed from both aspects of the bone. The lower lateral incisor tooth is extracted and a chain or Gigli saw conducted around the bone at the site of the empty socket. As much of the attachments of the digastric, geniohyoid, and geniohyoglossus of the involved side as possible are saved (for their future action). (5) Seizing the anterior end of the severed jaw, and drawing it outward, the remaining structures are detached from the inner aspect — internal pterygoid muscle, inferior dental artery and nerve at the inferior dental foramen, superior con- strictor of the pharynx, internal lateral ligament, stylomaxillary ligament. If not already divided, the mylohyoid and posterior part of the mucous mem- brane of the mouth are now separated. (6) Firmly depress the anterior portion of the inferior maxilla, thereby bringing the coronoid process further forward and downward — and then cut from it the temporal muscle with blunt curved scissors, following the anterior border of the coronoid process upward. (7) Still further depress the inferior maxilla, until the coronoid process is more accessible. This is especially necessary, as the original in- cision ceases about the center of the posterior border of the ascending ramus, in order to avoid the danger of cutting the important structures near the upper half of the posterior border of the ascending ramus (parotid gland, facial nerve, transverse facial and internal maxillary arteries, Steno's duct, and temporomaxillary vein) — hence the coronoid process is thus approached from before rather than from behind. The inferior maxilla should be de- pressed only, and not rotated outward — in doing the latter, the internal maxillary artery is apt to be hooked around the inner portion of the condyloid process and dragged out into the wound, and even ruptured. (8) Following the upper inner aspect of the condyloid process, free the insertion of the external pterygoid with elevator, or cut with blunt curved scissors. Divide the capsule and disarticulate the head of the bone forward. If not already divided, sever the internal lateral, stylomaxillary, and pterygomaxillary ligaments, and any binding bands of fascia, or fibers of the external pterygoid muscle. (9) The wound is temporarily drained through the posterior portion of the incision. The skin wound is carefully sutured to avoid scar. Comment— (1) Excision, where large growths complicate, may require a preliminary ligation of the external carotid — and a preliminary tracheotomy, with tamponing of the larynx — as well as division of the entire thickness of the lower lip. (2) If the median portion of the inferior maxilla, and therefore the genial tubercles, be removed, the tongue must be stitched forward to keep it from falling backward. (3) The coronoid and condyloid processes EXCISION OF RIBS, IN GENERAL. 479 may require to be first divided with forceps or chisel, and then withdrawn. (4) Only healthy periosteum is to be saved — otherwise an open operation is indicated. (5) Any portion of the alveolar process, or of the body, may be removed. (6) Both inferior maxillae may be simultaneously removed, by a repetition of the above procedure. (7) Feeding through a tube is, at first, indicated after the operation. OSTEOPLASTIC RESECTION OF THE LOWER JAW TO EXPOSE STRUCTURES IN PHARYNX AND UPON FLOOR OF MOUTH. Description. — The inferior maxilla is divided either in the middle line, or just in front of its ascending ramus — the former, for the exposure of the structures in the floor of the mouth, the fauces, and the anterior pharyngeal structures — the latter, for the exposure of the fauces and the posterior pharyn- geal structures. At the completion of the operation, the severed bone is brought together with silk or metallic suture. Preparation ; — Position. — As in the simple excision of the lower jaw (page 477)- Landmarks. — The median line, for the anterior operation, — and the angle of the jaw and the attachment of the masseter, for the lateral operation. Incisions. — (A) For the division in the middle line; — the incision is made in the median line, through the lower lip, extending thence down to the hyoid bone (Fig. 381, D). (B) For the division in front of the ascending ramus of the jaw, at the anterior margin of the masseter; — an incision passing from the tip of the mastoid process toward the hyoid bone (Fig. 380, B). Operation. — (A) In the middle line; — The upper part of the median incision is carried directly to the bone — the lower part is carefully deepened and extended as far as the hyoid bone. The arteries in the lips are clamped. The entire circumference of the jaw is cleared subperiosteally — a central incisor tooth is drawn — a Gigli saw is conducted beneath that site of the bone — and the jaw divided so as to be bevelled at the expense of its inner surface and lower border, and so as to spare the genial tubercles (thus prevent- ing over-riding of the bone, and keeping the genio-hyo-glossi and genio-hyoids intact). The two sides of the jaw are now widely drawn apart by hooks — and the tongue forward by a silk ligature passed through its substance. The special object of the operation is now accomplished. Holes should have been drilled on each side of the site to be divided — through which kangaroo-tendon is now carried and tied. The skin wound is then closed — and the vermillion border of the lip carefully sutured. (B) In front of the ascending ramus of the jaw; — Ligate the facial artery and expose the inferior border of the lower jaw at the anterior border of the masseter muscle — raising the periosteum and inching the mucous membrane upon both aspects of the jaw. Having drilled holes for future suturing, at the site of intended division, a Gigli saw is con- ducted around the bone behind the molar teeth, and the section made obliquely — the limit of section being farther forward upon the external and inferior than upon the internal and superior aspect. The ascending ramus is drawn upward and the body of the jaw forward — thus securing the requisite exposure. At the completion of the operation, the parts of the bone are sutured and the wound closed. EXCISION OF RIBS, IN GENERAL. Surgical Anatomy — Surface Form and Landmarks. — Given under the Thorax, pages 733, 734. 480 EXCISIONS. General Surgical Considerations. — (1) The following extents of rib may be removed; — (a) An entire rib, from and including its chondrosternal articulation, to and including its costovertebral articulation; — (b) Part of a rib (the rib proper), from and including the chondrocostal, to and including the costovertebral articulation; — (c) Part of a rib, from and including the chondrocostal, up to the costotransverse articulation; — (d) Any limited por- tion of a rib; — (e) Two or more adjacent ribs, in whole or in part. (2) Unless contraindicated, the portion of rib covered by periosteum should be removed subperiosteal!}' (that is, the rib proper). Best Methods of Excision. — By parallel incision over center of rib — for one rib, or part of a rib. Parallel incision midway between ribs — for two adjacent ribs. EXCISION OF ENTIRE RIB AND COSTAL CARTILAGE BV PARALLEL INCISION OVER CENTER OF RIB. Position. — Patient near edge of table, in such a position as to render site of operation accessible, and resting upon pad so as to render the part prominent. Surgeon on side of operation, or behind, if patient be upon side. Assistant stands opposite. Landmarks. — Tipper and lower border of rib; chondrosternal articula- tion; costovertebral articulation. Incision. — The long parallel incision begins over the center of the chondro- sternal articulation — passes directly over center of costal cartilage and rib — ending over costovertebral articulation. The posterior end of this incision will be over the center of the vertebral ends of the ribs, in the case of the lower ribs — but will run along their upper border, just above the transverse pro- cesses of the vertebra?, in the case of the upper ribs. Operation. — Incise directly through skin, fascia, overlying muscle, and periosteum, down to bone. Over the costal cartilages there is no periosteum, as such. The treatment of the overlying muscles will be modified by the part of the chest involved — where unimportant, they are cut through — where important and capable of retraction after being cut, they are divided in their cleavage line as far as this is possible — otherwise their fibers must be cut. Important vessels, and especially important nerves, coursing downward from the axillary region, are to be avoided, if possible. The rib is freed subperiosteally — and with especial care along the groove upon the lower, inner aspect, where the intercostal vessels and nerve run — using fully curved periosteal elevator and rugine. Guard the pleura behind the posterior surfaces of the ribs — intrathoracic fascia alone here intervening. Having freed the center of the rib around its entire circumference, a chain or Gigli saw is carried between bone and periosteum and the rib divided. First one and then the other cut end of the rib is seized with bone-forceps and drawn outward — and, while held in this position, is freed toward either end and disarticulated. The musculo-periosteal sheath is sutured with gut — and the wound closed. Comment. — For excision of two or more consecutive ribs, in whole or in part, see Estlaender's and Schede's operations, pages 765 and 768. EXCISION OF CLAVICLE, IN GENERAL. Surgical Anatomy. — Anteriorly; — supraclavicular nerves and vein con- necting cephalic and external jugular veins cross the antero-superior surface of the clavicle. Interiorly; — axillary vessels and brachial plexus rest upon EXCISION OF SCAPULA, IN GENERAL. 481 the first rib, under the clavicle, the subclavius muscle and dense fascia inter- vening Posteriorlv; — omohyoid, scalenus anticus, scalenus medius, scalenus posticus, sternohyoid, and sternothyroid muscles; subclavian, suprascapular, and internal mammary arteries; innominate, subclavian, and external jugular veins; brachial plexus, phrenic and posterior thoracic nerves; pleura, apex of lung, and thoracic duct. General Surgical Considerations. — The clavicle may be removed in whole or in part — or the sternoclavicular or acromioclavicular joints may be separately excised. TOTAL EXCISION OF CLAVICLE BY LONG AXIAL INCISION. Position. — As for ligation of third part of subclavian artery, page 53. Landmarks. — Clavicle; acromioclavicular joint; sternoclavicular joint. Incision. — Along the antero-superior surface, following the curve of the bone and extending beyond both sternoclavicular and acromioclavicular joints (Fig. 383, C). Operation. — The incision passes directly through skin, platysma, supra- clavicular nerves, fascia, and periosteum to bone. Once within the perios- teum, this membrane is completely detached with a fairly sharp, curved periosteal elevator, together with the attached muscles and coracoclavicular ligament. The clearing is first completed entirely around the center of the bone, and at this point the bone is divided with a chain or Gigli saw conducted between bone and periosteum. Each end is then grasped in turn with bone- forceps and drawn outward — the remaining portions of periosteum being freed to the articular ends while the bone is thus held. The outer end is first removed and then the inner — especially guarding the important struc- tures near the latter. The knife and periosteal elevator, or rugine, hug the bone throughout the entire operation, the soft and important parts being protected by spatula'. The musculo-periosteal sheath is closed as usual, and the wound closed. The arm is put up as in the case of fractured clavicle. Comment. — The safety of the operation and the freedom from hemor- rhage will depend upon the nearness with which the subperiosteal method is followed out. The chief dangers are the wounding of the structures beneath and behind the clavicle (v. Surgical Anatomy, page 480). Any portion of the clavicle may be removed through a corresponding part of this incision. Excision of Sternoclavicular or Acromioclavicular Joints. — In ex- cising the sternoclavicular or acromioclavicular articulations, disarticulation is first accomplished — the inner or outer end of the clavicle, as may be, is then elevated sufficiently to slip the Gigli saw beneath — it is then removed, and the sternum or acromion gouged. The bone is closely hugged in these operations, especially when working near its inner end. EXCISION OF SCAPULA, IN GENERAL. Surgical Anatomy. — The chief arteries in the neighborhood of the scapula are the following: — suprascapular, crossing the ligament of the suprascapular notch; posterior scapular, along the vertebral border; sub- scapular branch of axillary, along the inferior border of the subscapularis; dorsalis scapulae branch of subscapular, crossing the axillary border; acromial branches of acromial thoracic, about the acromial process. The surgical neck of the bone is marked off by a line from the suprascapular notch through the great scapular notch. 31 482 EXCISIONS. General Surgical Considerations. — (1) The scapula may be removed in whole or in part. The parts usually separately removed are, the acromion, part of the spine, and part of the lower angle. (2) The glenoid, acromion and coracoid processes are to be saved when possible. (3) The chief danger is from hemorrhage. The chief difficulty is in the detachment of the muscles. (4) Temporary drainage is indicated. (5) The excision is generally by the open method. The subperiosteal method is scarcely practicable, and is generally not indicated, as well. After-treatment. — A pad is placed in the axilla to keep the head of the humerus out. The arm is pushed up so that the head is in its natural position and steadied against the chest — and held there by a sling for three or four months. Passive movement is used in about three weeks. Results. — A very useful limb often results — capable of all underhand, but no overhand, movements, and of lifting weights. TOTAL EXCISION OF SCAPULA BY STRAIGHT INCISIONS ALONG SPINE AND VERTEBRAL BORDER, FORMING SUPERIOR AND INFERIOR FLAPS. Position. — Patient on sound side, near edge of table, with back to opera- tor. Surgeon behind both scap- ula?. One assistant compresses subclavian artery. Another as- sistant retracts flaps. Landmarks. — Bony promi- nences and outlines of scapula. Incisions. — Vertebral Inci- sion — passes parallel with and just to outer side of vertebral border, from superior to interior angle. Spinal Incision — begins over acromioclavicular joint and passes thence along acromion and spine to junction with ver- tebral incision, meeting it at almost a right angle. (Fig. 383, C, C, and B, B'.) Operation. — (1) These in cisions pass through skin and fascia. Raise the superior flap, dividing the trapezius along the upper border of the spine. (2) Raise the inferior flap, divid- ing the deltoid along the lower border of the spine. (3) Render the vertebral border prominent by drawing the patient's arm across his chest and divide the muscles along that border (leva- tor anguli scapulae, rhomboidei minor and major) — then further drawing the vertebral border outward, divide the serratus magnus. Ligate the pos- terior scapular artery near the superior angle. (4) Clear the superior border, severing the omohyoid and ligating the suprascapular artery near the supra- Fig. 383.— Excisions about the Shoulder and Scapula : — A, Excision of shoulder-joint, by posterior vertical incision ; B, B', Vertebral incision, in total excision of scapula by vertebral and spinal incisions ; C, C'i Spinal incision, in total excision of scapula by vertebral and spinal incisions ; D, V-shaped incision, for excision of superior angle of scapula ; E, V-shaped incision, for excision of inferior angle of scapula. EXCISIONS ABOUT THE FINGERS. 483 scapular notch — the arm still being held across the chest. (5) Render the angle of the shoulder prominent by drawing the arm downward — open the acromioclavicular joint — sever any remaining portions of the deltoid and trapezius — and cut the conoid and trapezoid ligaments as near the clavicle as possible. (6) Manipulate the arm so as to bring the coracoid process as far as possible into the wound made by separating the acromion from the clavicle, and sever the insertion of the biceps, coracobrachialis and pec- toralis minor. (7) Divide the capsule and the muscles surrounding it (supra- spinatus, infraspinatus, and subscapularis) — and also the scapular head of the biceps at the upper part of the glenoid fossa, and the scapular head of the triceps at the lower part of the glenoid fossa. (8) Divide the remaining muscles connecting the axillary border of the scapula to the arm, the teres major and minor, cutting these muscles from in front — seizing and tying the subscapular artery proximal to the origin of the dorsalis scapula?. (9) The deeper muscles, the supraspinatus, infraspinatus, and subscapularis, are re- moved with the bone — except that their tendons of insertion into the humerus are left. Drop the flaps into place and suture their margins. Temporary drainage should be used, as oozing is apt to be marked. Comment. — If necessary, the subclavian may be compressed through an incision. The chief vessels, however, may be ligated in advance of incisions for the flaps, that is, before the beginning of the operation proper — but can generally be taken up during the operation, before actually cutting them. Partial Excisions of the Scapula. — The acromion process may be excised through an incision placed centrally over its prominent contour (Fig. 383, B). The angles of the bone may be removed by V-shaped incisions (Fig. 383, D and E). The body of the scapula is excised through practically the same incisions as are used for the total excision. EXCISIONS ABOUT THE FINGERS. Surgical Anatomy — Surface Form and Landmarks. — See under Am- putations of the Fingers, pages 323 and 324. General Surgical Considerations. — (i) Typical excisions about the Fig.384 —Excisions about the Fingers :— A, Excision of terminal phalanx, by U-shaped pal- mar incision ; B, Excision of second phalanx of index, by dorso-external incision ; C, Excision of first interphalangeal joint, by two lateral incisions. fingers are unusual. Incomplete excisions for dead bone are more common. (2) Excision of the terminal phalanx is better than disarticulation at the last interphalangeal joint. (3) Excision of the interphalangeal joints is very satisfactory. (4) Excision of the metacarpo-phalangeal joints often leaves a 484 EXCISIONS. useless joint — except in the case of the thumb. It should n< t be clone in the young, as it destroys the epiphyses of the metacarpal and phalanx. It is satisfactory in the case of the thumb, especially if the phalangeal epiphysis be left (there is no lower metacarpal epiphysis). (5) In excisions of the phalanges and metacarpals, the subperiosteal method is particularly indicated, although its execution is not very satisfactory. (6) Partial excision of the phalanges and metacarpals is more satisfactory than total excision. (7) About the only phalanges one usually attempts to excise are the last of all the fingers, the second of the index, and the first of the thumb. Methods of Excision about the Fingers. — (a) For Terminal Phalanx of Finger or Thumb: — Best Method; U-shaped Palmar Incision, (b) For Second Interphalangeal Joint: — Be>t Methods; Two Lateral Incisions (for lingers in general); Dorso-external Incision (for index); Dorso-internal Inci- sion (for little finger) ; — Other Methods; Dorsolateral Incision; Single Lateral Incision, (c) For Second Phalanx: — Dorso-lateral Incision (for ringers in general — if done at all); U-shaped Palmar Incision (for thumb); Dorso- external Incision (for index) ; Dorso-internal Incision (for little finger — if done at all); — Other Methods; Two Lateral Incision-, (d) For First Inter- phalangeal Joints: — Two Lateral Incisions (for fingers in general); Dorso- external Incision (for index and thumb); Dorso-internal Incision (for little finger); — Other Methods; Single Lateral Incision, (e) For First Phalanx: — Dorso-lateral Incision (for fingers in general — if done at all); Dorso-internal Incision (for thumb — and for index, if done in the latter case at all) ; Dorso- internal (for little finger — if done at all; ; — Other Method; Two Lateral Incisions. EXCISION OF TERMINAL PHALANGES OF FINGERS BY I'-SHAPED PALMAR.' IXCISIOX. Position. — As for Amputations about the Fingers (page 327). Landmarks. — Terminal interphalangeal joint. Incision. — U -shaped incision — beginning opposite the terminal inter- phalangeal joint-line, with the two limbs about three-fourths of the width of the linger apart, and with the convexity extending downward nearly to the nail-tip (Fig. 384, A). Operation. — The incision passes directly to the bone — the soft parts are dissected up in the form of a palmar flap — and the terminal phalanx grasped with forceps, disarticulated, and enucleated. The palmar flap is then sutured back into position and the digit dressed upon a palmar splint. Comment. — Is is better to make a partial excision, if possible, leaving the base of the phalanx — which insures the retention of the epiphvsis and the attachment of the flexor profundus digitorum. If a total excision be done, suture the flexor tendon into the stump and close the beginning of the flexor sheath, if demonstrable. EXCISION OF SECOND INTERPHALANGEAL JOINTS OF FINGERS BY TWO LATERAL [NCISK INS. Position. — As for Amputations about the fingers (page 327). Landmarks. — Second Interphalangeal joint-line. Incisions. — Two straight incisions in the mid-lateral aspects of the fingers, with their center over the joint-line (Fig. 385 A. A'). Operation. — The incisions pass directly through skin, fascia, lateral ligaments, periosteum, and capsule into joint. By hugging the bones and EXCISION OF SECOND 1XTERPHALAXGEAL JOINTS OF FIXGERS. 485 working between them and the soft parts with a sharp, fully curved small periosteal elevator, the bones are everywhere freed. The articular ends are then disarticulated — thrust out of the wounds — cut off with saw — and the Fig.385.— Excisions about the Hand and Wrist :— A. A'. Excision of second interphalangeal joint by two lateral incisions : B. Of second interphalangeal joint of index, by dorso-external incision ; C. Of second interphalangeal joint of little ringer, by dorso-internal incision : D. Of second phalanx of finger, by dorso-lateral incision : E. E'. Of first interphalangeal joint, by two lateral incisions ; F. Of first phalanx of thumb, by dorso-external incision : G. Ofmetacarpo-phalangeal joint, by dorso-latera) (dorso-external' incision: H. Of metacarpophalangeal joint, by dorso-lateral .dorso-internal) inci- sion ; I. Of metacarpal, by dorsal incision ; J. Of metacarpal, by dorsal incision, with added angular incision : K. Of metacarpal of little finger, by dorso-internal incision; L. Of metacarpal of thumb, by dorso-extenial incision: M, M', Of wrist-joint, by radial incision, and N, ulnar incision lOllier's operation); O, O, Of wrist joint, by dorso-radial incision (Boeckel-Langenbeck operation); P, P, of wrist-joint, by dorso-ulnar incision (.Kocher's method). sawed ends drawn back. The musculo-periosteo-capstilar sheath is then closed on either side with buried gut sutures. The skin wounds are sutured and the parts dressed on a palmar splint. 4 86 EXCISIONS. EXCISION OF SECOND INTERPHALANGEAL JOINT OF INDEX BY DORSO-EXTERNAL INCISION. Position — Landmarks. — As in the above operation. Incision. — A straight incision placed over the dorsal aspect of the second interphalangeal joint, just to the outer side of the extensor tendon — with its center over the joint-line. Operation. — The incision passes directly through skin, fascia, capsule, and periosteum — going through the last over the ends of the phalanges just above and below the joint. The soft parts are subperiosteally elevated from the joint and ends of the bones. The bones are then disarticulated — pro- truded — and their ends sawed off just beyond their articular surfaces. The sawed ends are now drawn back into position — the musculo-periosteo- capsular sheath is closed, on either side, with buried gut sutures — the lips of the skin wounds sutured — and the digit dressed upon a palmar splint. (For principle, see Fig. 384, C, and Fig. 385, B.) EXCISION OF SECOND INTERPHALANGEAL JOINT OF LITTLE FINGER BY DORSO-INTERNAL INCISION. Description. — The operation is, in every respect, similar to the above — except that the incision is placed over the dorsal aspect of the second inter- phalangeal joint of the little finger, just to the inner side of the extensor tendon, with its center over the joint-line (Fig. 385, C). EXCISION OF SECOND PHALANGES OF FINGERS BY DORSO-LATERAL INCISION. Position. — As for Amputations (page 327). Landmarks. — Second phalanx, and first and second interphalangeal joints. Incision. — Straight incision placed over the dorsal aspect of the second phalanx, just to the outer or inner side of the extensor tendon — beginning just above the first interphalangeal joint and ending just below the second interphalangeal joint. In the index-finger the incision would be dorso- external (that is, to the outer side of the extensor tendon). In the little finger, if performed at all, it would be dorso-internal. In the thumb, it would be by a U-shaped palmar incision (Fig. 384, B, and Fig. 385, D). Operation. — The incision passes directly through skin, fascia, perios- teum, and capsules of the first and second interphalangeal joints. The soft parts are subperiosteally elevated from the bone and the bone isolated and disarticulated. The lips of the periosteo-capsular sheath are carefully sutured with buried gut sutures. The margins of the skin wound are closed in the usual manner. The finger is dressed upon a palmar splint until new bone has been thrown out. Comment. — In the case of the thumb, the operation is the same as for the terminal phalanx of the fingers in general. EXCISION OF SECOND PHALANX OF INDEX P.Y DORSO-EXTERNAL INCISION. Position. — As for Amputations of Fingers (page 327). Landmarks. — Second phalanx. Incision. — Straight incision over dorsal aspect of index, placed just to the outer side of the extensor tendon — beginning just above the first inter- phalangeal joint and ending just below the second interphalangeal joint (Fig. 384, B). EXCISION OF METACARPOPHALANGEAL JOINTS OF FINGERS. 487 Operation. — As for excision of the second phalanges of the fingers in general. EXCISION OF SECOND PHALANX OF LITTLE FINGER BY DORSO-INTERNAL INCISION". Position — Landmarks. — As in the last operation. Incision. — Straight incision over dorsal aspect of little finger, just to the inner side of the extensor tendon — beginning just above the first and ending just below the second interphalangeal joint. Operation. — As for excision of the second phalanges in general. EXCISION OF FIRST INTERPHALANGEAL JOINTS OF FINGERS. Description. — The best method of excising the first interphalangeal joints is the same as adopted in the case of the second interphalangeal joints — namely, by two lateral incisions for the fingers in general (Fig. 385, E, E'), ■ — dorso-external incision, for the index or thumb, — and dorso-internal in- cision, for the little finger. (For principle, see Fig. 385, G and C.) These operations are described at pages 4S4 and 486. EXCISION OF FIRST PHALANGES OF FINGERS. Description. — The excision of the first phalanx of a finger is, ordinarily, not admissible — except in the case of the thumb. If performed at all, the best methods would be the same as those adopted in the case of excision of the second phalanges — namely, by the dorsodateral incision, for the fingers in general (on either inner or outer side of the extensor tendon), — dorso- external for thumb or index, — and dorso-internal for little finger. EXCISIONS ABOUT THE HAND. Surgical Anatomy — Surface Form and Landmarks. — See under Am- putations about the Hand, pages 323, 324, and 325. General Surgical Considerations. — (i) Partial excisions about the hand are successful operations. (2) Total excisions, if subperiosteal, will some- times yield a firm cicatrix that will render the finger useful. But sometimes the finger is drawn up and useless. (3) Operations for the partial excision of the metacarpals are the same in principle as those for the excision of the entire bone, except more limited — and hence will not be given separately. If a chain or Gigli saw can be passed around the bone in these operations of partial excision, this is preferable to cutting the metacarpal with pliers. If this cannot be done, one can cut through the center of that part which is to be removed with pliers, and then slip a chain or Gigli saw under either end and remove the requisite amount, thus avoiding the crushing effect of the bone pliers. (4) Operations for the removal of individual carpal bones are uncommon. Their removal in the course of excision of the wrist is dealt with under that operation. EXCISION OF METACARPOPHALANGEAL JOINTS OF FINGERS BY DORS' )-LATERAL INCISION. Position. — As for Disarticulations at the Metacarpophalangeal joints (page 332). 488 EXCISIONS. Landmarks. — Metacarpophalangeal joints. Incision. — Straight incision over the dorsal aspect of the joint, just to the outer or inner side of the extensor tendon, with its center over the joint-line (Fig. 385, H and G). Operation. — The incision passes through skin, fascia, capsule of the joint, and the periosteum of the ends of the metacarpal and phalangeal bones. The bones are closely hugged and the soft parts are freed from the articular ends and shafts. The articular ends of the bones are disarticulated and the base of the phalanx first protruded and sawed off. The parts are then retracted from about the head of the metacarpal, which is thus made prominent and removed with a small saw, or chain or Gigli saw, while steady- ing the end of the bone with bone-forceps. The bones are then drawn back in place — the periosteo-capsular sheath sutured with buried gut stitches — the skin wound closed — and the part dressed upon a palmar splint. Comment. — In excising the metacarpophalangeal joint of the thumb or index, a dorso-external incision is used — and, in the case of the little finger, a dorso-internal incision. Otherwise the operations at these sites are similar to the one just described. EXCISION OF THE METACARPALS BY DORSAL INCISION. Position. — As for Disarticulation of the Metacarpals, page 332. Landmarks. — Carpo-metacarpal and metacarpophalangeal joints. Incision. — Straight incision over the dorsal aspect, immediately to the outer or inner side of the extensor tendon, beginning just above the carpo- metacarpal and ending just below the metacarpo-phalangeal joint. If neces- sary, the upper and lower ends of the incision may have two short diverging arms continuing from them, to better expose the joints. The incision may be placed directly in the mid-dorsal line, the extensor tendon being carefully drawn to one side, out of harm's way, as soon as the skin is incised (Fig. ^85, I and J). Operation. — After guarding the extensor tendon, the incision passes through periosteum of the metacarpal and the capsules of the two joints directly to the bone. The central portion of the metacarpal is first cleared subperiosteal]} 7 - around its entire circumference by a fully curved periosteal elevator, the interossei being separated with the periosteum. Unless a Gigli saw can be conducted around the shaft of the metacarpal, the center of the bone is divided with cutting pliers (for although they crush the bone, no part of it is to be saved). Each end of the divided bone is then seized in turn with bone-forceps and forcibly drawn backward and manipulated from side to side — during which manipulation the lateral and palmar surfaces are freed and the ligaments at the carpo-metacarpal and metacarpo-phalangeal joints are put upon the stretch and divided. The musculo-periosteal sheath is then sutured with buried catgut stitches and the skin wound closed. Comment. — (1) The metacarpal may be first disarticulated at the meta- carpo-phalangeal joint and then drawn backward — but the above method is easier. (2) The extensor tendons and the structures in the palm of the hand are always especially guarded. EXCISION OF THE WRIST-JOINT, IN GENERAL. 489 EXCISION OF METACARPAL OF THUMB BY DORSO-EXTERNAL INCISION. Position. — The ulnar side of the hand is held against the table, the radial side presenting. Landmarks. — The metacarpal bone and carpometacarpal and meta- carpophalangeal joints. Incision. — Straight incision over the dorso-external aspect of the meta- carpal, just to the outer side of the extensor brevis pollicis tendon — beginning above the trapezio-metacarpal and ending just below the metacarpo-phalan- geal joints. If necessary an angular incision may be added to the ends of the straight incision (Fig. 385, L). Operation. — Having incised skin, avoid the external branch of the radial nerve — and then cut directly through periosteum and capsules onto bone and into joints. The operation is then completed as in the case of an ordinary finger. The extensor ossis metacarpi pollicis is separated from the base of the metacarpal. The subperiosteal method is here especially to be carried out, if possible. EXCISION OF METACARPAL OF LITTLE FINGER BY DORSO-INTERNAL INCISION. Description. — The operation is the same as that for the fingers in general, except that the incision is placed upon the inner side of the extensor tendon (Fig. 385, K). EXCISION OF THE WRIST- JOINT, IN GENERAL. Surgical Anatomy — Surface Forms and Landmarks. — Given under Disarticulation at the Wrist, page 348. Position. — See each operation. General Surgical Considerations.— In complete excision of the wrist- joint, all of the carpals, the lower ends of the radius and ulna, and the articular ends of the metacarpals are removed. When not diseased, it is well, however, to leave the pisiform, unciform process of the unciform and trapezium, as the two former give attachment to man}- muscles and the latter forms part of the important thumb-joint. After-treatment. — A splint is indicated which will support the palm; keep the wrist slightlv extended; the fingers slightly flexed and the thumb slightly separated from the hand. The fingers should be passively moved within three or four days. The wrist should be kept still until fairly solid and then passively moved, still being held upon a splint, which is generally retained for from three to six months. Results. — Usually not altogether satisfactory. The hand may become rigid, adducted, and useless. Speedy healing without suppuration, a good splint, and faithful passive movement aid largely in the production of a satisfactory result. Best Methods.— Radial and Ulnar Dorsal Incisions (Ollier's operation). Single Dorso-radial Incision (Boeckei-Langenbeck operation) . Single Dorso- ulnar Incision (Kocher's method). Other Methods. — Bilateral Incisions (Lister's method). Dorso-ulnar Incision. Median Dorsal Incision (Mayo Robson's method). Single Ulnar Lateral Incision (Heron Watson's method). 49© EXCISIONS. Comparison. — The carpal bones are removed with greater ease, and less damage is done to the tendons, bv the method of the radial and ulnar dorsal EXCISION OF WRIST BV RADIAL AND ULNAR DORSAL INCISION — OLLIKR'S OPERATION. Description. — The articular ends of the radius and ulnar are removed. The articular ends of the metacarpal bono are gouged only, unless exten- sivelv diseased, and, if so, are removed. The pisiform bone, the unciform processes of the unciform bone, and the trapezium are preserved, if possible — for the reasons given below. Position. — Patient's hand, prone, rests by his side, or, preferably, upon a small table at the patient's side, supported upon a firm cushion. Surgeon sits in front of the hand. Assistant steadies patient's forearm and fingers. Landmarks. — See Incision. Incisions. — (i) Radial Incision — begins opposite the center of the dorsal surface of the second metacarpal — passes obliqued}' upward, just to the outer border of the extensor indicis tendon, to the center of a line connecting the two stvloid processes — thence changes its course slightly and passes vertically upward in the long axis of the limn for about 7.5 cm. (3 inches) above the radial styloid process. (2) Ulnar Incision — begins opposite the center of the dorsal surface of the fifth metacarpal — and passes upward $.2 cm. (i\ inches) above the tip of the ulnar styloid process, lying to the inner side of the extensor carpi ulnaris (Fig. 385, MM' and X). Operation. — (1) The radial incision is at first superficial. The internal branch of the dorsal division of the radial nerve is avoided, if possible. The extensor indicis tendon is exposed and is retracted outward, with its sheath. The tendon of the extensor carpi radialis brevior is crossed by the incision — is followed down to the insertion into the base of the third metacarpal and is drawn outward, but not cut. The upper part of the incision passes down between the extensor indicis (which, with the extensor communis digitorum, is drawn inward) and the extensor longus pollicis (which is drawn outward). This incision is now, after retraction of the muscles and tendons, carried through the posterior annular ligament, capsule of the joint, and periosteum of the carpal, radial, and metacarpal bones. (2) The ulnar incision is also at first superficial. The dorsal cutaneous branch of the ulnar nerve is avoided, if possible. The incision is carried down along the inner border of the ex- tensor carpi ulnaris — upon the ulna, cuneiform, unciform, and fifth meta- carpal — going through the posterior annular ligament, capsule, and peri- osteum of the ulna, carpal and metacarpal bones. (3) Decortication is begun upon the radial side. The periosteum and ligaments are stripped up from the dorsal surface of the carpal bones as far as can be done through the radial incision. All the tendons are raised with their periosteum bodily from their grooves, with their sheaths unopened. The same steps are re- peated through the ulnar incision — hugging the bones closely and elevating off all the overlying tissues, working entirely between these tissues and the bones. (4) Removal of the carpal bones. As each carpal bone is outlined and partially separated, it is seized from the dorsum of the hand with strong bone-forceps, and, while being twisted from side to side, its lateral attach- ments are severed as close to the bone as possible, and its palmar attachments as subperiosteal!}' as possible, and removed. The most convenient order in EXCISION OF THE WRIST- JOINT. 49 1 which to remove the carpal bones is, scaphoid, semilunar, cuneiform, os magnum, trapezoid, and body of unciform. All are thus freed and removed — except that the pisiform (which is deeply seated and has the attachments of the flexor carpi ulnaris and abductor minimi digiti) is left; — and the unci- form process of the unciform bone (which is also deeply seated and has the attachments of the flexor brevis minimi digiti, flexor ossis metacarpi minimi digiti, and anterior annular ligament) should be cut through with bone-pliers and left — and the trapezium (which is rarely diseased and which enters into the important metacarpo-trapezial joint of the thumb, and has the attach- ments of the abductor pollicis, flexor ossis metacarpi pollicis, flexor brevis pollicis, and anterior annular ligament) should also be left. If any of these be diseased, however, they should be removed. (5) The lower ends of the radius and ulna are now freed of periosteum, by following them around from the upper part of the vertical incisions. The soft parts are all then retracted and the ends of the bones protruded through the wound and removed just above the articular cartilages — or, if but little diseased, may be simply gouged without being extensively freed. (6) The articular ends of the metacarpals should be gouged, if not much involved — or. if extensively diseased, removed, by being protruded into the wound and a thin slice of bone taken off with a narrow saw. (7) Temporary drainage is used — the wound sutured and dressed — and a special splint applied. Comment. — (1) The subperiosteal method is difficult, but if carefully carried out, no tendons are cut. In the open method the tendons of the extensores carpi radialis longior et brevior are cut — and tendons of the flexor carpi radialis, flexor carpi ulnaris, and extensor carpi ulnaris are in danger of being cut. (2) The ends of the radius and ulna may be first disarticulated and sawed, and then the carpal bones removed, if such a course seem more convenient. (3) The radial artery and the palmar structures are to be specially guarded. EXCISION OF THE WRIST- JOINT BY SINGLE DORSO-RADIAL INCISION — BOECKEL-LANGENBECK OPERATION. Description. — Same as for the last operation, as to the bones removed — but different in incision of approach. Position. — As in preceding operation. Landmarks. — See Incision. Incision. — Straight incision, between the extensor communis digitorum and extensor indicis, on the inner side, and extensor longus pollicis (extensor secundi internodii pollicis) on the outer side, running close to the outer border of the former — extending from the ulnar border of the dorsal surface of the lower third (or half) of the second metacarpal up over the radius for about 5 cm. (2 inches) above the joint-line (Fig. 385, O, O'). Operation. — The incision is made carefully, and branches of the radial nerve to the middle finger avoided, if possible. The incision is now deepened toward the second metacarpal, trapezoid, scaphoid, capsule, posterior annular ligament, and radius. In this deeper incision, however, the tendons of the extensor indicis and extensor communis digitorum are retracted when exposed — and the tendons of the extensor radialis longior and extensor radialis brevior are not cut. These latter tendons are isolated and are then freed down to their attachment into the bases of the second and third metacarpals respec- tively. If the trapezium is to be left, together with the pisiform and unciform 492 EXCISIONS. process of the unciform, it is possible, though difficult, to complete the exci- sion without severing these tendons. Otherwise, however, and where the tissues are much infiltrated and bound down especially, these two tendons are detached subperiosteal!;/ at their insertion. If not divided, these tendons are shifted from side to side in the subsequent manipulations. If divided, they are sutured back as nearly in their normal positions as possible, at the end of the operation. The remaining steps of the operation — decortication — • freeing and excising of the ends of the radius and ulna — removal of the carpal bones — freeing and excising, or gouging, of the ends of the metacarpals — together with the closure of the wound — are all carried out through this single opening, aided by good lateral retraction, just as in Ollier's opera- tion by the double dorsal incisions. Comment. — The chief objections to the operation are the difficulty of dealing with the bones to lie excised without division of the extensores carpi radialis longior et bre- vior — and damage done to the extensor muscles of the hand, dorsifiexion some- times being seriously impaired subsequently. EXCISION OF THE WRIST- JOINT BY SINGLE DORSO-ULNAR INCISION kocher's METHOD. Description. — The joint is approached from its ulnar aspect — the important radial extensor tendons are not severed- — and by completely dislocating the joint, it is pos- sible to inspect it in its entirety. Position. — As in Ollier's method (page 490). Landmarks. — Fifth metacarpal bone; wrist-joint. Incision.— Is from 7 to 8 cm. (about 3 inches) in length — -extending from the cen- ter of the wrist-joint — and thence upward along the middle of the back of the fore- arm (Fig. 385, P, P). Operation. — Deepen this incision — avoiding dorsal branch of the ulnar nerve and the posterior ulnar vein in the lower part of the incision. Divide the fascia and the pos- terior annular ligament and open the sheaths of the extensor minimi digiti and extensor communis tendons and draw them to the radial side. Under the retracted tendons the ligaments connecting the fifth metacarpal, the unciform, cuneiform, and ulna are divided. The capsule together with the tendon of the extensor carpi ulnaris is separated and retracted toward the ulnar aspect. (The separation of the extensor carpi ulnaris in this operation is not as serious as the separation of the two radial extensors in the Dorso-radial operation.) The tendon of the extensor carpi ulnaris is Fig. 386. — Excisions about the Long Bones of the Upper Extrem- ity: — A, Excision of ulna, by long pos- terior incision ; B, Excision of radius, by long externo-dorsal incision ; C, Ex- cision of part of diaphysis of humerus, by external vertical incision. TOTAL EXCISION OF THE ULNA 493 removed from its osseous groove on the dorsal surface of the ulna. The cap- sule is incised and removed from around the lower end of the ulna. The meniscus is to be removed if the inferior radio-ulnar articulation is involved. The joint between the cuneiform and pisiform is opened up — leaving the tendon of the flexor carpi ulnaris attached to the pisiform. The unciform process of the unciform is exposed and cut off with bone-cutting pliers. The mass of common flexor tendons is lifted out of their groove. The ligamentous connections between the three innermost metacarpals are separated upon the palmar aspect of the hand — preserving the insertion of the flexor carpi radialis into the second metacarpal. Detach the anterior ligament of the wrist from anterior aspect of the lower end of the radius. Dorsally, the posterior ligament is detached from the inferior end of the radius as far as the extensors of the radius and thumb, and the tendons are elevated from their grooves — the insertions of the radial extensor tendons into the third and second metacarpals being preserved. The hand is now forcibly flexed toward the forearm and completely dislocated toward the radio-flexor aspect — bringing the thumb into touch with the radial border of the forearm, and displacing the extensor tendons to the radial side of the radius. If necessary, further detach the capsule from the outer aspect of the radius up to the insertion of the supinator longus. The carpal bones are now dissected out in turn — the trapezium and trapezoid being the most difficult to remove. A thin slice of the articular aspect of the bones of the forearm and the heads of the metacarpals is removed with an appropriate saw. These bones should be sawn so as to give surfaces curved on a transverse axis — to aid in subsequent dorsal and palmar flexion and extension. The hand is brought back into line with the forearm — and the limb put up in a splint which will secure dorsi-flexion of the hand, while leaving the fingers free for passive movement. Comment. — (i) Apart from the advantages mentioned under Description, this form of approach is especially indicated where the involvement is chiefly of the ulnar aspect of the hand. (2) Avoid the radial artery in its course upon the dorsum between the trapezium and trapezoid and passing to the palm between the first and second metacarpals. EXCISION OF THE ULNA, IN GENERAL. Surgical Anatomy Surface Form and Landmarks. — Given under Amputations about the Forearm, pages 353 and 354. General Surgical Considerations. — The entire ulna, or any portion of its diaphysis, may be removed. After-treatment. — A long supporting splint for the forearm, with pas- sive movement at the elbow and wrist. Results. — Satisfactory results have followed the subperiosteal method. TOTAL EXCISION OF ULNA BY LONG POSTERIOR INCISION. Position. — Patient's forearm is pronated and outstretched upon a small table. Landmarks. — Ulna; elbow- and wrist-joints. Incision. — In the long axis of the ulna, and placed so as to fall upon its posterior border in the interval between the anconeus and flexor carpi ulnaris above, and between the flexor carpi ulnaris and extensor carpi ulnaris below (Fig. 386, A). Operation. — Having incised the skin and fascia, the above intermuscular 494 EXCISIONS. spaces are recognized and followed to the bone — after having sought the dorsal branch of the ulnar nerve beneath the flexor carpi ulnaris, about 5 cm. (2 inches) above the wrist-joint, and henceforth guarded it. The perios- teum is incised to the bone throughout along the line of incision. The center of bone is then freed of periosteum entirely around its circumference, using a well-curved periosteal elevator. A chain or Gigli saw is now carried between bone and periosteum and the former divided at its center. Each end of the bone is then seized with bone-forceps and, while manipulated, is further freed of periosteum up to and into the capsules of the elbow- and wrist-joints — thus raising a periosteo-capsular covering. Both articular ends are dis- articulated — the periosteo-capsular sheath sutured with buried gut stitches — the muscles quilted — the skin-wound closed, except for temporary drainage of the elbow and wrist articulations — and the limb put up upon a long splint. Comment. — If it be possible to leave one or both articular ends of the bone, it is desirable. EXCISION OF THE RADIUS, IN GENERAL. Surgical Anatomy — Surface Form and Landmarks General Sur- gical Considerations — After-treatment — Results. — As in the case of the Ulna, page 493- TOTAL EXCISION OF RADIUS BY LONG EXTERXO-DORSAL INCISION. Position. — Patient's forearm lies outstretched and upon its ulnar border, resting on a small table. Landmarks. — Radius; elbow- and wrist-joints. Incision. — In long axis of radius, and placed so as to fall upon its ex- terno-dorsal aspect, in the groove between the supinator longus and extensor carpi radialis longior (Fig. 386, B). Operation. — Having incised the skin and fascia, this intermuscular space is identified and followed to the bone — after having sought the radial nerve beneath the supinator longus and henceforth guarded it. The periosteum is incised to the bone throughout. The insertion of the pronator radii teres is raised from the bone with the periosteum and turned forward. The supinator brevis is bisected vertically, the anterior half being displaced forward with the radial nerve, the posterior half backward with the posterior inter- osseous nerve. The bone is now freed of its periosteum entirely around its circumference at its center, using a fully curved periosteal elevator. A chain or Gigli saw is passed between bone and periosteum and the former divided. Each end of the bone is then seized with bone-forceps — and the operation completed as in the corresponding operation upon the ulna (page 49 2 )- Comment. — Same as for the Ulna (page 494) • EXCISION OF ELBOW- JOINT, IN GENERAL. Surgical Anatomy — Surface Form and Landmarks. — Given under Disarticulation at the Elbow, pages 359 and 360. General Surgical Considerations. — (1) Excision of the elbow-joint consists in the removal of the lower end of the humerus and the upper ends of the radius and ulna. (2) It is difficult, if not impossible, to save the peri- osteo-capsular sheath intact. (3) Partial excisions may be done — of the articular ends of either humerus, radius, or ulna. (4) The brachialis anticus EXCISION OF ELBOW- JOINT. 495 is inserted into the ulna beyond the coronoid process, — and the triceps into the sides as well as the tip of the olecranon, and thence into the deep fascia of both sides of the forearm, especially on the inner side. Therefore as little of these parts is to be sacrificed as possible. The preservation of the bands of fibers continued from the triceps to the fascia of the forearm is important in excising the elbow, as the power to extend the limb is thereby preserved in part. For the relation of the triceps and brachialis anticus to the move- ments of the forearm, see Movements of the Elbow-joint, page 360. (5) The ulnar and posterior interosseous nerves are to be especially guarded in these operations. After-treatment. — A special jointed splint is indicated that will hold the forearm and arm at any angle to each other, with the power to change the angle without removing the splint. The limb is at first put up at an angle of 135 degrees, with the forearm midway between pronation and supination, the ends of the bones being about 1.3 cm. (h inch) apart, and the fingers free. Where ankylosis is feared (as in children and after the subperiosteal method), or where much bone has been removed, the limb may be put up at a right angle from the start. Results. — Satisfactory, as a rule. Ankylosis is likely to follow if the sawed ends are kept in contact — and a flail limb, if kept too far apart. There is generally a tendency to the posterior displacement of the bones of the forearm. Best Methods. — Posterior Median Incision (Langenbeck). Posterior Bayonet-shaped Incision, with or without an additional Ulnar Incision (Oilier). Vertically Curved Dorso-external Incision (Kocher). The Radio- ulnar Articulation may be excised by a Posterior Vertical Incision. Other Methods. — Dorso-radial Angular Incision (Kocher). Lateral Radial and Ulnar Incisions (Hueter). H -shaped Incision (Moreau). Pos- terior Angular Incision (Nelaton). EXCISION OF ELBOW- JOINT BV POSTERIOR MEDIAN INCISION — LAN GENBECK'S OPERATION. Position. — Patient supine, near edge of table. Assistant on side of table opposite to surgeon, holding the operated limb by the wrist and forearm, with patient's forearm across his (the patient's) chest, so that the arm is vertical and the forearm horizontal (nearly at a right angle to the arm) — thus throwing the flexed elbow prominently out toward the surgeon, with the ulna and olecranon uppermost. Surgeon stands to outer side of elbow, on the involved side, and cuts from the forearm toward the arm. Landmarks. — Lower end of humerus; elbow-joint; upper ends of radius and ulna. Incision. — About 10 cm. (4 inches) in length, in the long axis of the limb, passing directly over the center of the humerus, olecranon fossa, olec- ranon process, and posterior crest of ulna — half of the incision being above the tip of the olecranon and half below (Fig. 387, A). Operation. — (i) This incision is made at once directly through soft parts, periosteum, and capsule to the bone — and, in the above position, will pass from above downward, from the forearm over the olecranon and onto the arm — bisecting the triceps tendon, incising the capsule and passing through the muscular portion of the triceps onto the humerus. (2) The incision is at once deepened to the bone throughout — efficient retraction of 49 6 EXCISIONS. the lips of the wound being very important for the ease of the subsequent steps. The periosteal elevator, of various curves, and the rugine, should closely hug the many irregularities about the joint-structure — raising up the periosteum and the periosteo-capsular sheath with the attachments of the ligaments undisturbed. The surgeon's left thumb aids in the separation, while the knife is used as sparingly as possible — the object being to peel the bones bare of all soft parts, including periosteum. (3) The inner aspect of the wound is first freed. The inner half of the triceps tendon is freed from the olecranon — especial care being observed and the bone being very closely hugged in freeing the groove between the olecranon and internal condyle, that the ulnar nerve may not be wounded. The internal lateral liga- ment is freed from the humerus and ulna, and, with it, the common origin of the flexor muscles, together with the perios- teum. (4) The outer aspect of the wound is next freed. The outer half of the tri- ceps tendon is separated from the olecra- non, with especial care that its expansion into the deep fascia of the forearm be not severed. The anconeus, the continua- tion of the outer portion of the triceps, is similarly separated. The external . lat- eral ligament, and, with it, the common origin of the extensor muscles, are sepa- rated from the external condyle, together with the periosteum. The supinator brevis is freed from the external condyle and ulna and turned forward, especially guarding the interosseous nerve between its superficial and deep portions. (5) The bones are now everywhere free ex- cept upon their anterior surfaces (Fig. 388). The articular end of the humerus is generally first removed. The patient's hand, of the involved side, is placed prone upon the table near his head, and firmly held there, while steadying the forearm in an upright position — while an assistant steadies the arm midway between a ver- tical and horizontal. By firmly drawing the soft parts downward (toward the shoulder) the assistant protrudes the lower end of the humerus upward. Its anterior surface is now sufficiently cleared— and, while the articular end is steadied with lion-jaw forceps, 'and the soft parts retracted with spatula? or retractors, the bone is sawed at a right angle to its axis and generally on a level just below the tips of the condyles, or at whatever height may be in- dicated. (6) The articular ends of the radius and ulna are now removed. By drawing down (toward the wrist) the soft parts from the radius and ulna, while held in the above almost vertical position, their articular ends are made to protrude, and are freed as far as necessary on their anterior surfaces, care being taken that the attachment of the brachials anticus is not entirely freed from the coronoid process. The olecranon is seized and Fig. 3S7.— Excisions about Elbow : — A, Excision of elbo\v-joint,by posterior median incision (Langenbeck's operation); B, B', Excision of elbow-joint, by radial and ulnar lateral incisions ; C, Excision of superior radio-ulnar articulation, by pos- terior vertical incision. EXCISION OF ELBOW-JOINT. 497 steadied with forceps, the soft parts well re- tracted, and the articular end of the olecra- non sawed off horizontally to its base, the section including a thin slice from the articu- lar end of the radius. (7) The wound in the periosteo-capsule is sutured with buried gut stitches. The muscles are quilted, also by buried gut sutures. The wound is closed, with temporary drainage provided — and dressed upon a special splint previously pro- vided. (See After-treatment, page 495 . ) Comment. — (1) Avoid injury to the ul- nar and posterior interosseous nerves. (2) Do not completely detach the insertions of the brachialis anticus and triceps from all their neighboring attachments, as such at- tachments preserved greatly aid flexion and extension. (3) The biceps insertion is also to be strictly guarded, but is not so much in danger as the others mentioned. (4) Freer access may be given to the articulation by an earlier division of the olecranon. (5) Par- tial excision of the articular end of the ulna may he readily done through the posterior median incision. Fig. 388.— Te of the Elbow-, terior Aspect. Articul ixt CPOX ar Line its Ax- Fig. 389. — Excisions about El- bow: — A, Excision of elbow -joint, by bayonet-shaped incision (Ot- her's operation); B, Ulnar incision, added to bayonet-shaped incision, if needed. 3 2 EXCISION OF ELBOW- JOINT BY POSTERIOR BAYONET-SHAPED INCISION, WITH OR WITHOUT AN ADDITIONAL SHORT VERTICAL ULNAR INCISION — OLLIER'S OPERATION. Description. — The operation can usually be completed through the bayonet-shaped in- cision alone. Where insufficient access is thereby given, a short vertical ulnar incision may be added. Position — Landmarks. — As in the above operation. Incisions. — (1) Bayonet-shaped incision — the upper part of the incision is vertical, practically parallel with the axis of the hu- merus, placed in the groove between the tri- ceps and supinator longus, and extends from about 5 cm. (2^ inches) above the joint-line to the tip of the outer condyle, — the middle portion is oblique, placed between the outer head of the triceps and anconeus, and ex- tends from the tip of the outer condyle obliquely downward and inward to the base of the olecranon, — the lower portion is again vertical, placed over the posterior border of the olecranon and extends from the base of the 498 EXCISIONS. olecranon down the forearm for about 4 to 5 cm. (i£ to 2 inches). (2) Ulnar incision (when used) — is a vertical incision of about 5 cm. (2 inches) and is placed over the lateral aspect of the internal condyle. It is resorted to in order to secure more working-room, especially in cases of disease (Fig. 389, A and B). Operation. — (1) The above incision is at first only superficial. The intermuscular planes above indicated are identified and in these planes the incision is carried to the bones, through the periosteum and periosteo-capsulai sheath. (2) Through this wound, by means of rugine and periosteal elevator, are detached, subperiosteal^, the triceps insertion, external lateral ligament, common origin of extensor muscles and insertion of brachialis anticus, and the olecranon and border of the sigmoid cavity are decorticated and the head of the radius exposed. (3) Through the same wound — or through the addi- tional ulnar incision, if necessary — the internal lateral ligament and common origin of flexor tendons are freed, and the internal condyle decorticated, special care being taken of the ulnar nerve in the groove between the olecranon and internal condyle. (4) Disarticulation is now accomplished. The articular ends of ulna and radius are thrust outward, freed to the desired extent, if not already so (being careful to preserve the greater part of the attachment of the brachialis anticus), steadied with forceps and sawed hori- zontally through at the base of the olecranon, including a slice of the radius. The articular end of the humerus is similarly treated. (5) The periosteo- capsular sheath is sutured — the muscles quilted— temporary drainage estab- lished — the wound closed — and the part dressed upon a special splint. Comment. — (1) The disadvantages of this method are, that the external expansion of the triceps tendon is cut; the anconeus atrophies (for the nerve to it comes from that branch of the musculospiral which supplies the outer head of the triceps and is cut in the oblique portion of the incision); and the ulnar nerve is less easily kept from harm. (2) Partial excision (of the articular ends of humerus, ulna, or radius) may be done through part of Ollier's incision. EXCISION OF THE ELBOW- JOINT BY VERTICALLY CURVED DORSO-EXTERNAL INCISION KOCHER'S METHOD. Description. — The special object of the present operation is to preserve all the muscles and their attachments, of the region involved, as well as the nerves which supply them. The nerve which supplies the anconeus (descend- ing from the branch of the musculo-spiral which supplies the outer head of the triceps) is here preserved — while it is divided (with consequent atrophy of the anconeus) in the excision of the elbow by Ollier's bayonet-shaped incision) . Position. — As in excision of the elbow by Langenbeck's method (page 495) . Landmarks. — Supracondyloid ridge; — line of elbow-joint; head of radius; — anconeus; — posterior border of ulna; — olecranon. Incision. — Having flexed the elbow to an angle of 150 degrees, the incision begins from 3 to 5 cm. (i| to 2 inches) above the line of the elbow-joint, at the supracondyloid ridge — passes thence downward vertically in the axis of the limb to the head of the radius — thence along the external border of the anconeus to the posterior border of the ulna, to a point about 7.5 cm. (3 inches) below the tip of olecranon — and then, curving slightly inward, ends over the inner surface of the ulna (Fig. 390) . Operation. — Passing from above downward, this incision is deepened EXCISION OF ELBOW-JOINT. 499 to the external border and outer condyle of the humerus, having the radial extensors and supinator longus in front, and the margin of the triceps pos- teriorly — and, in the forearm, it passes to the bone between the extensor carpi ulnaris and the external border of the anconeus — dividing the capsule over the radial head and the annular ligament at its attachment to the ulna. The lowermost end of the incision severs the lower fibers of the anconeus nearly transversely at their ulnar attachment — these fibers extending quite far down the forearm. It will be seen that this incision passes along the interval between Fig. 390. — Excisions about Elbow and Shoulder: — Excision of elbow by vertically curved dorso-external incision (Kocher); osteoplastic exckion of shoulder by posterior curved incision (Kocher). the muscles supplied by the musculo-spiral and those supplied by the posterior interosseous, thereby avoiding atrophy of the anconeus, which tenses and fixes the capsule of the joint. Having exposed the bones of the region and incised the capsule, detach the external head of the triceps subperiosteally, and the capsule subcapsularis- from the humerus — and the triceps and anconeus subperiosteally from the ulna. The flap thus formed of the triceps and anconeus is now retracted from the olecranon and displaced to the ulnar side. 500 EXCISIONS. The external lateral ligament and the attachment of extensor tendons are chiselled from the external condyle subcortically and displaced forward. The forearm can now be readily and completely dislocated inward, which is done. The extensor structures and their nerves are thus preserved. If the object of the operation is to gain free access to the interior of the joint, this is now readily accomplished. If it be desired to make a complete excision, the internal lateral ligament and adjacent muscles are separated subperios- teal^ from the internal humeral condyle and the inner border of the ulna — accomplishing the separation subcortically, as in the case of the external condyle. The sawing off of the articular ends of the bones is next accom- plished — and this should be done in such a way as to leave surfaces of humerus above, and radius and ulna below, curved on a transverse axis, in order to aid in subsequent flexion and extension, and also to prevent displacement. This method of sawing reproduces the curve of the olecranon. The capsule is now closed — the musculo-aponeurotic tissue brought together with buried sutures — and the wound closed with or without drainage, as indicated — and the limb immobilized. EXCISION OF SUPERIOR RADIO-ULNAR ARTICULATION BY POSTERIOR VERTICAL INCISION. Description. — An operation sometimes done for unreduced dislocation of the head of the radius. Position. — As in excision of the elbow-joint by the posterior median incision. Landmarks. — Elbow and radio-ulnar articulations. Incision. — Vertical, about 5 cm. (2 inches) in length, with its center over the radio-ulnar articulation, and placed behind and over the posterior part of the supinator longus (Fig. 387, C). Operation. — Incision passes through skin and fascia. The supinator longus is recognized and is either slightly displaced, the incision passing along its posterior border — or the incision passes directly through its posterior fibers and upon the supinator brevis. This latter muscle is then carefully divided over the head of the radius, preferably in the direction of its fibers (guarding the posterior interosseous nerve between its two layers, and also the musculospiral nerve and the biceps tendon). The orbicular ligament is now severed — the parts well retracted — the head exposed and removed with a Gigli or other saw. The musculo-periosteo-capsular structures are sutured with buried gut stitches — the muscles quilted — the wound closed — and the elbow dressed upon a special splint. EXCISION OF HUMERUS, IN GENERAL. Surgical Anatomy — Surface Form and Landmarks. — Given under Amputations about the Arm, pages 365 and 366. General Surgical Considerations. — The entire humerus has been ex- cised subperiosteallv, followed by a useful arm. Generally, however, only portions of the shaft are excised. The operation for its entire removal will be described — any portion of the incision being available for the removal of special portions of the bone. The result of the operation, even of a portion of the bone, is often a tlail and useless limb. EXCISION OF SHOULDER-JOINT, IN GENERAL. 501 EXCISION OF HUMERUS BY LONG EXTERNAL INCISION. Position. — Patient is turned partly upon his side and the arm sc placed as to expose its external aspect. Landmarks. — Pectoro-deltoid groove; external bicipital sulcus. Incision. — So placed as to lie between the deltoid and pectoralis major above — and along the external bicipital sulcus below (Fig. 386, C, where incision for partial excision is given). Operation. — The incision is carried through skin and superficial fascia, and is then carefully deepened between the soft parts, through the periosteum, to the bone throughout. The deltoid fascia is incised and the groove between the deltoid and pectoralis major opened up by retraction — the bicipital fascia incised — and the humerus reached along the outer border of the coraco- brachialis and brachialis anticus. Avoid, by retraction, the acromial thoracic and cephalic vessels in the pectoro-deltoid groove — the circumflex vessels and nerve at the surgical neck — the musculospiral nerve and superior pro- funda artery to the outer side of the middle of the shaft — and the musculo- cutaneous nerve between the biceps and brachialis anticus in the lower third of the arm. The bone is freed subperiosteally, the insertions of the tendons being raised with the periosteum. The entire circumference of the bone is freed at its center. A chain or Gigli saw is then passed between periosteum and center of humerus and the bone divided — after which either end is grasped by bone-forceps and cleared toward either articulation. The articular ends are disarticulated in a manner similar to the disarticulation in the excision of a joint — except that the ends of the bones are approached from the shaft. The long musculo-periosteal sheath of the diaphysis, and the musculo- periosteo-capsular sheaths of the articular ends, are united with buried gut sutures — the muscles quilted — temporary drainage established at the joint- ends — and the wound closed. The limb is dressed in a long rigid splint, which includes both shoulder and elbow. (See end of preceding page.) EXCISION OF SHOULDER- JOINT, IN GENERAL. Surgical Anatomy — Surface Form and Landmarks. — Given under Disarticulation at the Shoulder-joint, pages 372 and 373. General Surgical Considerations. — Excision of the shoulder-joint con- sists in the removal of the articular end of the humerus, with gouging, only, of the glenoid fossa — no part of the scapula being removed with a saw. The subperiosteal method is especially desirable, the best results attained having followed this method. After-treatment. — The sawed end of the humerus is held in contact with the glenoid fossa, the arm being bound to the side, an axillary pad inter- vening, and the weight of the extremity being supported by a sling. The axillary pad is important in keeping the head of the bone from being drawn under the coracoid process, which is more likely when the external rotators have been cut and the pectoralis major and latissimus dorsi act unopposedly. Passive movements should begin as soon as acute inflammation subsides — abduction being the last movement, as it displaces the head inward. Results. — All movements are to be expected, except abduction beyond a right angle. Weights may also be lifted. 502 EXCISIONS. Best Methods. — Anterior Oblique Incision (Baudens, Hueter, and Oilier). Posterior Curved Incision (Kocher's Osteoplastic Method). Other Methods. — Anterior Vertical Incision (Langenbeck) . Posterior Vertical Incision. Deltoid Flap. Anterior Curved Incision. Posterior Curved Incision. External Curved Incision (Senn's Osteoplastic Method) . Comparison of Methods. — The anterior oblique method involves the minimum damage to the deltoid muscle, the chief muscle of the shoulder- joint. Fig. 39 1. —Excisions about the Shoulder : — A, Excision of shoulder-joint, by anterior oblique incision ; B, Excision of shoulder-joint, by anterior vertical incision ; C, Excision of clavicle, by long axial incision. EXCISION OF SHOULDER- JOINT BY ANTERIOR OBLIQUE INCISION. Position. — Patient supine, near edge of table, shoulders raised, arm slightly abducted. Surgeon to outer side of both shoulders. Assistant supports limb. Landmarks. — Coracoid process; pectoro-deltoid groove; shoulder-joint. Incision. — Begins just to outer side of tip of coracoid process and passes obliquely downward and outward along the anterior border of the deltoid for 9 to 10 cm. (3J to 4 inches) (Fig. 391, A). OSTEOPLASTIC RESECTION OF THE SHOULDER- JOINT. 503 Operation. — (I) This incision passes, at first through skin and fascia, from the coraco-acromial arch to its lower end. The pectoro-deltoid groove is then demonstrated. The cephalic vein and pectoral muscle are drawn inward — the deltoid outward. The biceps tendon is identified, its sheath opened, and the contained tendon drawn inward. The incision is continued in the original line through the capsule into the joint just to the outer side of this tendon, and through the periosteum onto the humerus. (2) The outer lip of the wound is now cleared. The periosteum, capsule, muscular and tendinous insertions are separated by rugine and periosteal elevator as one continuous layer. An assistant depressing the elbow and rotating the humerus inward, brings the greater tuberosity into the wound, and the insertions of the supraspinatus, infraspinatus, and teres minor are cleared. (3) The inner lip of the wound is similarly cleared. By depressing the elbow and rotating the humerus outward, the lesser tuberosity is brought into the wound. The biceps tendon is now drawn out and the insertion of the subscapularis is separated. (4) The head of the humerus is then disarticulated by depressing the elbow and thrusting the head forward through the retracted wound, while the biceps tendon is drawn inward. The neck of the bone is now cleared posteriorly, hugging the bone carefully to avoid damage to the circumflex vessels and nerve. After disarticulation, the head of the humerus is steadied by lion-jaw forceps and sawed, the section passing from without and slightly downward and inward, the surgeon so standing, on both sides, as to grasp the limb with his left hand distally to the saw-cut, while the soft parts are well retracted by an assistant. Following the section, the margins of the sawed bone may be rounded slightly. The humerus is sawed between the attach- ments of the pectoralis major, latissimus dorsi and teres major below, and the muscles of the tuberosities above — the section being as high as possible. (5) The glenoid cavity is gouged thoroughly with a sharp spoon, and the capsule of the joint is scraped, if indicated. (6) Temporary drainage is provided through a posterior opening. The head of the bone is drawn into place — the periosteo-capsular wound is sutured with buried gut stitches — the muscles quilted — and the wound closed. Comment. — (1) The capsule should not be cut transversely, if avoidable. (2) All the muscles, tendons, and ligaments should be raised attached to the periosteo-capsular covering. (3) The head of the bone may be, less advis- ably, divided in situ by means of a chain or Gigli saw. OSTEOPLASTIC RESECTION OF THE SHOULDER- JOINT BY POSTERIOR CURVED INCISION KOCHER'S METHOD. Description. — The essential features of this operation are that the posterior joint structures are more fully exposed — while no serious damage is done to muscle or nerve structure. The acromion process is temporarily displaced. Position. — The patient lies partly upon the opposite chest, rendering the externo-posterior aspect of the shoulder region prominent. Landmarks. — Acromio-clavicular articulation; — acromion; — spine of the scapula; — posterior fold of axilla. Incision. — Begins at the acromio-clavicular articulation — passes over the upper part of the shoulder, along the superior border of the acromion to the outer aspect of the spine of the scapula — thence curves downward to end about 3 cm. (i| inches) above the posterior fold of the axilla (Fig. 392). 5°4 EXCISIONS. Operation. — This incision is carried directly into the acromio-clavicular joint — and separates the attachment of the trapezius from the superior border of the spine of the scapula — the lower portion of the incision exposing the posterior border of the deltoid. By a finger inserted beneath it the deltoid is separated from the posterior scapular muscles up to its insertion into the acromion. Its posterior fibers are incised. The upper border of the infra- spinatus muscle is similarly freed with a finger opposite the outer border of the spine and the root of the acromion. The supraspinatus is similarly detached with a blunt dissector from the superior border of the scapular spine — so that a passage may be made beneath the root of the acromion, which is chiselled off obliquely — and, together with the deltoid, is retracted over the head of the humerus. Prior to this chiselling, holes should be drilled for subsequent Fig. 392. — Osteoplastic Resection of the Shoulder joint by Curved External Inci- sion (Senn's Method). suturing of the acromion. The suprascapular nerve is guarded at this stage of the operation. With the reflection of the acromio-deltoid flap, the head of the humerus is freely exposed superiorly, externally, and posteriorly, together with the attachments of the supraspinatus, infraspinatus, and teres minor muscles, as well as the posterior aspect of these muscles. The capsule is now incised. Having rotated the arm outward, the capsular incision begins at the upper part of the posterior lip of the bicipital groove — extends thence upward through the thickness of the capsule along the anterior border of the insertions of the external rotator muscles^to the highest part of the humeral head — thus exposing the tendon of the biceps up to its attachment to the glenoid cavity. Detach the supraspinatus, infraspinatus, and teres minor EXCISIONS OF BONES AND JOINTS ABOUT TOES. 505 muscles from the great tuberosity and retract them backward. Lift the biceps tendon from its groove and displace it forward, exposing its sheath. Thus the whole head of the humerus and the entire glenoid fossa are freely accessible. If a complete exposure of the joint be sought, this is now accom- plished, allowing the preservation of the anterior portion of the capsule and the anterior muscles. If, however, an excision be intended, the subscapularis is detached from the lesser tuberosity — the cora-humeral head of the biceps displaced — and the head of the humerus thrown outward. The division of the bone is accomplished as in the preceding operation. The capsule is sutured. The repair of the neighboring soft parts is carried out as far as indicated. The chiselled acromion is sutured back into position through the previously drilled holes — and the skin incision closed, with temporary drainage. The shoulder and arm are immobilized. Fig. 393. — Excisions about Shoulder and Scapula: — A, Excision of shoulder-joint, by deltoid flap (or less desirable form of exposure); B, Incision for excision of acromion and spinous process of scapula. Comment. — (i) Instead of chiselling off the acromion, the posterior flap may be formed by detaching the scapular origin of the deltoid subcortically, which subsequently unites firmly. (2) The circumflex vessels and nerves, coming out from under the teres minor, can be preserved from injur}'. EXCISIONS OF BONES AND JOINTS ABOUT THE TOES. Surgical Anatomy — Surface Form and Landmarks. — Given under Amputations about the Toes, pages 385 and 386. 506 EXCISIONS. General Surgical Considerations. — The same general principles apply in excisions about the toes as in excisions about the fingers. The details of the various excisions about the toes will, therefore, not be separately given. Besides, excision of the parts of the toes is quite rare — am- putations generally being done in- stead. This applies to all the toes except the great toe — with reference to which it may be understood that most of the following operations apply. EXCISION OF TERMINAL PHA- LANGES OF TOES. Best Method. — U-Shaped Plantar Incision. Description. — As for the termi- nal phalanx of finger, page 484. EXCISION OF SECOND INTER- PHALANGEAL JOINTS OF TOES. Best Method. — Two Dorso-lat- eral Incisions. Description. — As for the second interphalangeal joint of the fingers (page 484) — except that the inci- sions are here more dorsal than lat- eral. (Fig. 394, A, A'.) EXCISION OF SECOND PHA- LANGES OF TOES. Best Methods. — Two Dorso- lateral Incisions — for toes in general. U-shaped Palmar Incision — • for great toe. Description. — As for the sec- ond phalanx of the fingers (page 486) — or of the thumb (page 484). (Fig. 394, B, B'.) Fig-. 394. — Excisions about the Foot : — A, A', Excision of second phalangeal joint by two dor- sal incisions ; B, B', Excision of second phalanx, by two dorsal incisions; C, C, Excision of first phalang :al joint, by two dorsal incisions ; D, Exci- sion of first phalangeal joint of great toe by dorso- internal incision ; E, E', Excision of metatarso- phalangeal joint by two dorso-lateral incisions ; F, Excision of metatarsal, by dorsal incision; G, Ex- _, vr , TCT __ T ~_ _ TT;)CT T __ ^^ cisionof metatarsal bv dorsal incision, with addi- r-AClblUlN Ur riK.^1 liNinxmA- tional angular incision; H, H', Osteoplastic resec- LANGEAL JOINTS OF TOES. tion of anterior tarsus and tarso-metatarsus, by in- ternal and external dorso-lateral incisions. Best Method. — T WO, Dorsolat- eral Incisions — for toes in general. Dorso-internal Incision — for great toe. Description. — As for the first interphalangeal joint of the fingers (page 487) — or of the thumb (also page 487). (Fig. 394, C, C.) EXCISION OF ASTRAGALUS. 507 EXCISION OF FIRST PHALANGES OF TOES. Best Methods. — Dorso-internal Incision — for great toe. Two Dorso- lateral Incisions — for toes in general, if done at all. Description. — As for the first phalanx of the fingers in general, if done at all (page 487) — or for the thumb (also page 487). EXCISIONS OF BONES AND JOINTS ABOUT THE FOOT. Surgical Anatomy — Surface Form and Landmarks. — Given under Amputations and Disarticulations about the Foot (pages 385 and 386). General Surgical Considerations. — (i) The general features of ex- cisions of the metatarsals are the same as of excisions of the metacarpals. (2) Individual metatarsal bones are not frequently excised. That of the great toe is the one most often excised. (3) The sesamoid bones are left in situ, as in the hand. (4) The chief tarsal bones systematically excised are the os calcis and astragalus. Other portions of the tarsus are excised as indicated. And other tarsal bones are wholly or partially excised in such operations as those for the deformities about the foot. EXCISION OF METATARSO-PHALANGEAL JOINTS. Best Methods. — Two Dorso-lateral Incisions — for the toes in general. Dorso-internal Incision — for the great toe. Description. — As for the metacarpophalangeal joint of the fingers, in general (page 487) — or of the thumb. (Fig. 394, E, E'.) EXCISION OF THE METATARSAL BONES. Best Methods. — Dorsal Incision — for toes in general. Dorso-internal Incision — for great toe. Other Methods. — Interno-plantar Flap — for great toe. Description. — As for the metacarpal bones by dorsal incision (page 488) — or of the metacarpal of the thumb by dorso-external incision (page 489). (Fig. 394.) EXCISION OF ASTRAGALUS BY EXTERNAL CURVED INCISION. Position. — Patient supine, foot resting on inner side. Surgeon on side of operation. Assistant steadies foot and leg. Landmarks. — Fibula; astragalus; base of fifth metatarsal. Incision. — Begins about 7.5 cm. (3 inches) above ankle, at anterior border of fibula — passes vertically downward external to peroneus tertius and musculocutaneous nerve — and curves thence forward over outer surface of astragalus to base of fifth metatarsal (Fig. 395, A). Operation. — Having incised skin and fascia, retract the peroneus tertius inward and extensor brevis digitorum outward. In the interval thus left, incise the capsule of the ankle-joint and open the medio-tarsal joint. Free the neck of the astragalus and the lower ends of the tibia and fibula. Divide 508 EXCISIONS. the calcaneo-astragaloid ligament and anterior and posterior bands .of the externa] lateral ligament. Run along the outline of the astragalus at its junction with the os calcis and scaphoid with a stout knife. Invert the foot forcibly and, while in this semidislocated position, free the inner surface of the astragalus, using special care near the posterior tibial vessels and nerve. The astragalus is now grasped with bone-forceps and removed — severing any further binding ligaments which may hold it, while under tension. The leg then drops down upon the upper surface of the os calcis. The soft parts are brought together with deep and superficial sutures — the deep sutures being of chromic gut and including as much fibrous tissue as possible. Temporary drainage is used — and the foot is put up at a right angle to the leg. Comment. — Excision of the astragalus by the external curved incision is preferable where the unyielding condition of the tissues does not require two lateral incisions, as in the following operation. EXCISION OF ASTRAGALUS BV EXTERNAL ANGULAR AND INTERNAL CURVED INCISION. Description. — The bone is most easily removed from the outer aspect — the bone being approached between the tendons of the tibialis anticus and tibialis posticus, on the inner side — and, on the outer side, between the tendons of the peroneus tertius and peroneus brevis. The operation is done by the open method. Position. — Patient supine, foot extending over edge of table and turned to face inward and upward for inner incision and outward and upward for outer incision. The surgeon stands facing the foot. The assistant steadies leg and toes. Landmarks. — Inner and outer malleoli; articular border of tibia; as- tragalo-scaphoid joint; astragalo-calcaneal joint. Incisions. — (i) External Angular Incision; — The Vertical portion begins just above the level of the articular border of the tibia, on its antero-external aspect, and passes downward between the tendons of the peroneus tertius and peroneus brevis, parallel with and just behind the former tendon, for about 6 cm. (2 \ inches), and ends over the cuboid bone; — the Horizontal portion, shorter, is at a right angle to the vertical portion, beginning about its center and passing backward and slightly downward, ending just below the tip of the external malleolus. (2) Internal Curved Incision; — begins just above the level of the articular surface of the tibia, on its antero-internal aspect, and passes down immediately in front of the anterior margin of the tibia to slightly below the tip of the internal malleolus, whence it curves backward and ends just below the center of the internal malleolus. (Fig. 395, B, and Fig. 396, C.) Operation. — (1) These incisions first pass through skin and fascia only. (2) The outer incision is then deepened first, and the two rectangular flaps turned back and the antero-external aspect of the astragalus exposed between the tendons of the peroneus tertius and peroneus brevis. Forcibly extend and invert the foot, retracting the tendons, and divide the ligaments between the astragalus, on the one hand, and the fibula, os caicis, scaphoid, and tibia, on the other — as far as can be accomplished from the outer wound. (3) The inner incision is now deepened and the curved flap turned back and the antero-internal aspect of the astragalus exposed between the tendons of the tibialis anticus and posticus. Forcibly extend and evert the foot, re- EXCISION OF ASTRAGALUS. 5°9 tracting the tendons out of the way, and complete the division of the ligaments binding the astragalus to the tibia, os calcis, and scaphoid — as far as can be Fig. 395.— Excisions about thk Foot : — A, Excision of astragalus, by external curved incision ; B, External angular incision, in excision of astragalus by external angular and internal curved incisions ; C, Excision of os calcis, by horizontal curved and vertical incisions. Fig. 396.— Excisions about the Foot: — A, Excision of terminal phalanx by U-shaped palmar incision; B, Excision of metatarsal of great toe, by dorse-internal incision, with or without one or more additional incisions at one or both ends; C, Internal curved incision, in excision of astragalus by external angular and internal curved incisions ; D, Internal angular incision, in excision of ankle- joint by external curved and internal angular incisions. further accomplished from the inner wound. (4) The foot being again firmly extended and inverted, the astragalus is seized with lion-jaw forceps 510 EXCISIONS. and strongly whipped out through the outer wound — any remaining connec- tions being severed while on the stretch. (5) Suture the flaps into place — institute temporary drainage — and put up the foot at a right angle to the leg. Prior to suturing the skin-flaps, it is well to apply several buried chromic gut sutures wherever loose portions of fibrous tissue may be brought into contact to strengthen the parts. Comment. — (1) This excision may be made through simply the vertical portions of these two incisions — by retracting the lips of the wounds and thus reaching the bones. (2) Movement of the ankle-joint is not expected. Other Methods of Excision. — External Angular Incision. Transverse Incision. Internal and External Vertical Incisions. EXCISION OF OS CALCIS BY HORIZONTAL CURVED AND VERTICAL INCISIONS. Description. — The bone is removed from the postero-external aspect. The operation should be done as subperiosteally as possible. Position. — Patient lies on sound side with foot supported on inner side and free. Surgeon faces foot. Assistant steadies leg. Landmarks. — Base of fifth metatarsal; position of posterior tibial vessels; tendo Achillis; calcaneo-cuboid joint. Incisions. — Horizontal Incision — begins at base of fifth metatarsal — passes horizontally backward, well above the margin of the sole, around the convexity of the heel to its inner side, to a point about 3.2 cm. (1^ inches) internal to the median line of the heel — stopping well posterior to the posterior tibial vessels and nerve. Vertical Incision — begins about 5 cm. (2 inches) above the horizontal incision, on the outer side of the foot — and passes ver- tically downward just anterior to the tendo Achillis, and between it and the tendons of the peroneus longus and brevis, and meets the horizontal incision at a right angle. (Fig. 305, C.) Operation. — (1) These incisions are now deepened and the two small flaps made by them are turned forward and upward, and backward and upward, respectively. (2) The os calcis : s exposed behind the peronei tendons and the periosteum incised in the lines of the incisions. By means of a rugine everything is raised from the bone as subperiosteally as possible — on its outer, under, posterior, inner, and upper surfaces, in order. The tendo Achillis is severed and the soft parts and tendons are well retracted during this decortication. (3) The head of the bone is grasped with lion-jaw forceps and is drawn outward — the remaining connections being severed while on the stretch. (4) The flaps are dropped into place and sutured — temporary drainage being established. The foot is put up at a right angle, upon an anterior splint (so as not to exert any undue pressure upon the wound). EXCISION OF ANKLE-JOINT, IN GENERAL. Surgical Anatomy — Surface Form and Landmarks. — Given under Disarticulation at the Ankle, pages 412, 413. General Surgical Considerations. — The operation is not frequently performed. Ankylosis results in the majority of cases. The medio-tarsal joint, however, generally takes on considerable compensatory action. Some EXCISION OF ANKLE-JOINT. 511 shortening results. Sometimes the entire astragalus is removed at the same time. After-treatment. — The foot is kept at a right angle to the leg in a fixed splint — and in the same straight line with the leg. Although ankylosis is sought by some surgeons, movement is aimed at by the majority — and passive movements are begun early. Best Methods. — Transversely curved external incision (Lauenstein) ; external curved and internal angular incisions. EXCISION OF ANKLE-JOINT BY TRANSVERSELY CURVED EXTERNAL INCISION — LAUENSTEIN'S OPERATION. Description. — The joint is exposed through a single external incision, and the articular surfaces of the bones brought into the field by disarticula- tion accomplished by forcible temporary inversion of the foot. Position. — Patient midway between supine and lateral positions; foot resting upon inner side. Surgeon stands behind heel to make incision, and faces foot to complete operation. Assistant steadies leg. Landmarks. — Ankle and astragalo-scaphoid joints; peroneus tertius tendon; external malleolus; tendons of peroneus longus, brevis. and Achillis. Incision. — Begins on dorsum of foot, midway between ankle-joint and astragalo-scaphoid articulation, and over peroneus tertius tendon — passes nearly horizontally backward below and beyond the outer malleolus — and thence upward between the tendo Achillis, on the one hand, and the tendons of the peroneus longus and brevis, until from 5 to 7.5 cm. (2 to 3 inches) above the joint (Fig. 397, A). Operation. — (1) The skin and fascia are at first carefully divided. The musculocutaneous nerve is identified and drawn inward. The peroneus ter- tius tendon and extensor tendons are also displaced inward. The external saphenous vein and nerve are not disturbed posteriorly. (2) The incision is deepened between the retracted extensor tendons and fibula down to the as- tragalus, dividing the capsule cf the ankle-joint back to the external malleolus. The three bands of the external lateral ligament are separated from the outer malleolus. The sheath of the peroneus longus and brevis is carefully incised upward posteriorly to the fibula so that it may be subsequently sutured (the sheaths being separate below the tip of the external malleolus and common above the tip). The tendons are then removed from their sheath and re- tracted backward. By dividing the peroneal sheath high up the leg and freeing of the tendons, sufficient room may often be gotten for disarticulation without severing the tendons — otherwise these tendons must be cut and subsequently sutured with catgut. (3) The periosteum is now divided over the fibula, and it, together with the peroneal sheath, are separated posteriorly, with as much as possible of the periosteum, from the posterior surface of the fibula and tibia. (4) The periosteum is similarly separated from the anterior part of the fibula and anterior surface of the tibia, carrying with it the attachment of the anterior portion of the capsule. The foot is thus freed from its attachments to the outer aspect of the fibula and to the anterior and posterior aspects of the tibia. (5) Forcibly bend the foot inward until disarticulation is so completely accomplished that the inner aspect of the foot rests against the leg and the sole looks upward (toward the crotch), turning upon the internal lateral ligament as a hinge — the ligament being preserved, if possible. All the joint surfaces are thus brought well to view — and no tendons are severed, except as mentioned above. (6) As much of the bones is now removed as indicated. It is especially sought to avoid 5i2 KXCISIONS. sawing off more than the articular surface of the astragalus — and the gouging of the articular surfaces of the tibia and fibula, leaving the malleoli to prevent lateral displacement of the foot. If necessary, however, as much may be removed of the osseous tissues as in the following operation. (7) If the peroneal tendons have been severed, these are now sutured with chromic gut — replaced in their sheath — and the sheath, in any event (whether the tendons have been divided or not), is repaired by chromic gut suturing. Temporary drainage is used — the wound closed — and the foot put up at a right angle. EXCISION OF ANKLE-JOINT BY EXTERNAL CURVED AND INTERNAL ANGULAR INCISIONS. Position. — Patient rests midway between side and back, so as to bring Fig.397.— Excisions about the Foot: — A, Excision of ankle-joint by transverse curved exter- nal incision ; B, External curved incision, in excision of ankle-joint by external curved and internal angular incisions. inner aspect of foot uppermost during the inner incision, and vice versa; with foot supported. Surgeon faces foot. Assistant steadies limb. Landmarks. — The lower part of tibia and inner malleolus; lower part of fibula and outer malleolus; tibio-astragaloid joint. Incisions. — (1) External Incision — (with foot resting on inner aspect) — about 7.5 cm. (3 inches) in length — extends down the antero-lateral aspect of fibula to just below the tip of the outer malleolus — thence curves backward around the external malleolus and passes upward along the posterior border of the fibula for about 2.5 cm. (1 inch) (Fig. 397, B). (2) Internal Incision— (with foot resting upon outer aspect) — about 7.5 cm. (3 inches) in length — extends down inner aspect of tibia to tip of internal malleolus. A second incision may then be added — either a transverse incision meeting the first almost at a right angle, and extending about 1.3 cm. (5 inch) on either side (Fig. 396, D) — or a curved incision passing forward. Operation. — (1) The outer incision passes down through skin, fascia, and periosteum as far as it lies over the fibula — that portion below the external OSTEOPLASTIC RESECTIONS ABOUT FOOT. 513 malleolus at first passes through skin and fascia alone. The periosteum is now turned forward and backward over the fibula — the external lateral ligament and capsule are split in line with the vertical incision and turned backward and forward with the periosteum. The peroneus longus and brevis tendons are retracted backward. The anterior surface of the fibula, and as much as possible of the anterior surface of the tibia and astragalus, are freed subperiosteally through the outer wound, as well as the posterior surface of the fibula, and as much as possible of the posterior surface of the tibia. (2) The lower end of the fibula is now divided with a chain or Gigli saw, or with a chisel, about 2.5 cm. (1 inch) above its tip — and is grasped bv bone-forceps and removed, aided by a touch of the rugine where necessary. (3) The internal incision is made through skin, fascia, and periosteum to bone, where it lies over the tibia — and through skin and fascia; below the tip of the malleolus. The periosteum is similarly freed forward and back- ward, with the overlying and connected ligaments — freeing, through the inner wound, the outer and remaining portions of the anterior and posterior sur- faces of the tibia, and the anterior surface of the astragalus. The internal lateral ligament and capsule are similarly divided vertically and turned for- ward and backward as part of the periosteo-capsular covering. (4) The anterior and posterior tibial tendons are well retracted while working through the inner incision — and if a lower crosscut be added to the inner vertical incision, care is taken that it does not extend far enough anteriorly or pos- teriorly to injure these tendons. (5) The lower end of the tibia is now either divided in situ with a chain-saw, or protruded through the inner wound, grasped with forceps, and sawed just above its articular surface. (6) The upper portion of the astragalus is then sawed off with a thin, narrow saw, through the outer wound — or entirely disarticulated and removed, as indi- cated. (7) The inner and outer wounds are sutured — temporary drainage established — and the foot dressed at a right angle to the leg. OSTEOPLASTIC RESECTION OF ANTERIOR TARSUS AND TARSO- METATARSUS BV INTERNAL AND EXTERNAL DORSOLATERAL INCISIONS. Description. — Consists in the removal of the tarso-metatarsal joints; the entire tarsal bones distal to the astragalo-scaphoid and calcaneo-cuboid, or medio-tarsal. joint (namely, the scaphoid, cuboid, internal, middle and ex- ternal cuneiform); and the articular surfaces of the astragalus and os calcis; followed by the approximation of the sawed proximal and distal bones. The operation is resorted to in disease, especially tubercle, of the anterior tarsal joints. Where the disease is limited to the bases of the metatarsals, a tarso- metatarsal excision is done — the bases of the metatarsals and adjacent articular surfaces of the cuboid, internal, middle and external cuneiforms are alone removed. Where the disease is more general, in addition to the tarso-meta- tarsal excision, the anterior tarsus (scaphoid, cuboid, and three cuneiforms) is also excised. And where the disease is still more extensive, the articular surfaces of the posterior tarsus (astragalus and os calcis) are additionally removed Position. — Patient supine, with foot over edge of table and so manipulated as to bring the site of operation into prominence during the various steps. Surgeon faces foot. Assistant steadies and manipulates foot and leg. Landmarks. — First metatarsal, internal cuneiform, scaphoid, and head 514 EXCISIONS. of astragalus, on inner aspect of foot, — and fifth metatarsal, cuboid, head of os calcis, and external malleolus, on outer aspect. Incisions. — Internal Incision — from the posterior third of the dorsal aspect of the first metatarsal backward over the internal cuneiform and scaphoid to just above the dorso-lateral aspect of the head of the astragalus. External Incision — from the posterior third of the dorso-lateral aspect of the fifth metatarsal (external to the extensor tendons) backward over the cuboid to the dorso-lateral aspect of the os calcis, between the calcaneo-cuboid articulation and external malleolus. (Fig. 394, H, H'.) Operation. — (1) The internal incision first passes through skin and fascia. Then working upward and toward the middle line of the dorsum, the attachment of the tibialis anticus is separated from the first metatarsal and the internal cuneiform — and the dorsal aspect of the first metatarsal, internal cuneiform, scaphoid, and part of astragalus are bared, as far toward the middle of the dorsum as possible. Then working downward and toward the middle line of the sole, the attachment of the posterior tibial to the tuber- osity of the scaphoid and internal cuneiform is separated — and the plantar surfaces of the first metatarsal, internal cuneiform, scaphoid, and part of astragalus are cleared, as far toward the center of the sole as possible. (2) The external incision also, at first, involves skin and fascia. First working toward the dorsum, the tendon of the peroneus tertius is then separated from its attachment to the base of the fifth metatarsal — and the dorsal aspect of the outer metatarsals, cuboid, and part of os calcis, and as far toward the center of the dorsum as possible, are cleared. Then working toward the sole, from the outer aspect, the attachment of the peroneus brevis is separated from the base of the fifth metatarsal and the tendon of the peroneus longus is detached from the groove under the cuboid and drawn backward — and the under surface of the other metatarsals, cuboid, and part of os calcis are cleared as far toward the center of the sole as possible. (3) The cuboid, three cuneiforms, and scaphoid are removed by being grasped by bone-forceps and dissected out from the lateral wounds. The articular surfaces of the metatarsals below, and astragalus and os calcis above, are then sawed or gouged. (4) The sawed ends of the metatarsals are approximated to the sawed ends of the astragalus and os calcis — the dorsal and plantar redundancy of tissue being eventually taken up. (5) Temporary drainage is established — the two lateral wounds sutured — and the foot put up upon a splint, at a right angle to the leg. Buried chromic gut sutures between the deeper fibrous margins of the wound should be placed wherever indicated. Comment. — The anterior tarsus alone may be removed, by limiting the incision accordintrlv. OSTEOPLASTIC RESECTION OF MID-TARSUS BY EXTERNAL TRANSVERSE CURVED INCISION. Description. — Removal of anterior part of astragalus and os calcis, and the posterior part of the scaphoid and cuboid — followed by the approximation of the sawed distal and proximal bones. Position. — As in the above operation. Landmarks. — Medio-tarsal joint line (astragalo-scaphoid and calcaneo- cuboid articulations) ; external malleolus. Incision. — Begins over dorsal aspect of astragalo-scaphoid joint — curves obliquely downward and outward over upper part of calcaneo-cuboid joint, and passes thence backward to a point on a line with and about 1.3 cm. (^ inch) below the external malleolus (Fig. 398, A). OSTEOPLASTIC RESECTION OF POSTERIOR TARSUS. 515 Operation. — (i) Incise skin and fascia. The musculocutaneous nerve is encountered and retracted at the upper angle of the wound, and the external saphenous nerve and vein at the lower. The tendons of the peroneus tertius and extensor longus digitorum appear at the upper part of the wound and are retracted. The tendons of the peroneus longus and brevis appear at the lower part of the wound — their sheaths are slit and the tendons retracted. (2) The medio-tarsal region is approached in the interval thus made. The capsule is incised over the head of the astragalus — the astragalo-scaphoid joint opened — and the capsule separated from the articular ends of both bones. (3) Retract downward the upper border of the extensor brevis digitorum and Fig. 398.— Osteoplastic Resections about the Foot : — A, Osteoplastic resection of mid-tarsus by external transverse curved incision ; B, B', Osteoplastic resection of posterior tarsus by external curved incision; B, C, Incision in osteoplastic resection of foot by externo-lateral curved incision (modification of Wladimiroff-Mikulicz operation 1. open the calcaneo-cuboid joint, and free the capsule from the articular ends of both bones. (4) Sever the greater process of the os calcis and neck of astragalus with chisel and remove with bone-forceps, cutting the binding ligaments under traction. With chisel or gouge, remove as much of the cuboid as indicated — and the whole or as much as necessary of the scaphoid. (5) The sawed scaphoid and cuboid are approximated to the sawed astragalus and os calcis. The slit sheaths are sutured over the peronei tendons — the deep parts brought together with buried chromic gut sutures — the wound sutured — and the foot put up at a right angle to the leg, with the leg flexed. No drainage is established unless articular surfaces are left. OSTEOPLASTIC RESECTION OF POSTERIOR TARSUS BV EXTERNAL CURVED INCISION. Description. — Removal of astragalus and anterior half of os calcis; together with the articular surfaces of the tibia and fibula, and of the scaphoid and cuboid; after which, the anterior sawed surface of the posterior half of the os calcis is approximated to the sawed surfaces of the tarsal bones (scaphoid 516 EXCISIONS. and cuboid) ; and the upper sawed surface of the posterior half of the os calcis is approximated to the sawed tibia and fibula. Position. — Patient supine, with foot resting upon its inner side. Surgeon stands upon the outer side — and an assistant steadies the leg and foot. Landmarks. — Tendo Achillis; external malleolus; base of fifth meta- tarsal. Incision. — Begins upon external border of tendo Achillis, about 7.5 cm. (3 inches) above the ankle-joint — passes down behind the tendons of the pero- neus longus and brevis and external malleolus — thence forward, nearer the sole than the external malleolus, to the base of the fifth metatarsal (Fig. 398, BB'). Operation. — (1) Incise skin and fascia. Slit sheaths of peroneus longus and brevis and retract the tendons forward. Separating the margins of the wound as far as possible, open the capsule of the ankle-joint and, working beneath this with rugine and periosteal elevator, free the surfaces of the astragalus and os calcis, and their articulations with the scaphoid and cuboid, as far as possible in all directions, and working as subperiosteally as possible. The origin of the extensor brevis digitorum is separated from the antero- external aspect of the os calcis. The articular line of the astragalus is freed as fully as possible. (2) The foot is then forcibly inverted and, while in this position, the astragalus is strongly prized and drawn out by bone-forceps, the binding ligaments being cut under tension. The peronei and tibial tendons are carefully preserved. (3) The calcaneo-cuboid articular surfaces are then separated. The lower ends of the tibia and fibula are projected into the wound (by complete inversion of the foot) and sawed off just above the articular lines, leaving enough of the external malleolus for the peronei tendons to hook behind, if possible. The anterior half of the os calcis is then removed by vertical section with saw or chisel. The posterior half of the os calcis is now depressed forward, so as to render its upper surface accessible, and a horizontal slice of bone is removed from its upper surface, but not involving the tendo Achillis. The posterior articular surfaces of the scaphoid and cuboid are thrust into the wound (by twisting the anterior portion of the foot inward) and a vertical section made just posterior to their articular surfaces. (4) The vertical section of the posterior half of the os calcis and vertical sec- tions of the scaphoid and cuboid are now approximated — and the horizontal sections of the tibia and fibula are dropped down upon and approximated to the horizontal section of the upper aspect of the posterior part of the os calcis. (5) Repair the incised sheaths of the peroneus tendons by suturing them over the tendons with buried gut. The wound is sutured and the foot put up at a right angle to the leg. Comment. — (1) The tendons of the peroneus longus, brevis, and tertius, and of the tibialis anticus and posticus, and their attachments, are especially preserved intact. (2) The excision of the calcaneo-astragaloid joint alone may be done through this incision. OSTEOPLASTIC RESECTION OF FOOT BY TRANSVERSE UPPER AND LOWER AND OBLIQUE LATERAL INCISIONS — WLADIMIROFF-MIKULICZ OPERATION. Description. — Removal of soft parts of heel, together with astragalus and os calcis, and approximation of sawed tibia and fibula to sawed scaphoid and cuboid. A foot in the permanent position of extreme talipes equinus results, the patent walking upon the balls and phalanges of the toes. OSTEOPLASTIC RESECTION OF FOOT. 5*7 Position. — Patient supine, with knee flexed to enable inner or outer side of foot to be turned uppermost at end of table. Surgeon's position will vary with the varied steps of the operation. Landmarks. — Tuberosity of scaphoid; base of fifth metatarsal; external and internal malleoli; ankle-joint. Incisions. — Transverse Plantar Incision — from tuberosity of scaphoid across sole of foot to a point slightly behind the base of the fifth metatarsal. Internal and External Oblique Incisions — pass from the upper extremities of the plantar incisions obliquely upward and backward over the inner and outer aspects of the foot to the bases of the internal and external malleoli. Posterior Horizontal Incision — passes transversely backward around the posterior aspect of the leg, connecting the upper extremities of the inner and outer oblique incisions. (Fig. 399, C, C, C", D, and E.) Operation. — (1) The above incisions are everywhere carried to the bone — the plantar vessels and posterior tibial nerve being divided in the transverse plantar incision. (2) Flex the foot forcibly — divide the tendo Achillis and the posterior ligaments — opening the articulation from behind. Further flex the foot on the leg and complete the disarticulation of the ankle-joint. Fig.399.— Excisions about the Foot :— A, Excision of first phalanx of great toe, by dorso- internal incision ; B, Excision of metatarsophalangeal joint of great toe by dorso-internal incision ; C, C, C", Skin incisions in Wladimiroff-Mikulicz's osteoplastic resection of foot ; D, Bone-section of scaphoid and cuboid, in same ; E, Bone-section of tibia and fibula, in same. (3) By means of rugine and periosteal elevator, and approaching from the lateral incisions, detach the soft parts from the dorsum of the foot as sub- periosteally as possible, thus guarding the anterior tibial vessels and extensor tendons. (4) Disarticulate anteriorly at the astragalo-scaphoid and calcaneo- cuboid joints, and remove the astragalus and os calcis with the adherent soft coverings. (5) Divide the tibia and fibula horizontally just above the articular surfaces. Divide the scaphoid and cuboid vertically at about the center of each bone. Approximate the sawed surfaces of the tibia and fibula above, to the scaphoid and cuboid below, in the vertical or extreme talipes equinus position — holding them in place by kangaroo tendon, silver wire, or pegs. (6) Having tied all vessels, approximate and suture the cut ends of the 518 EXCISIONS. posterior tibial nerve. Establish temporary drainage. Suture the trans- verse plantar incision and the lower half of the oblique lateral incision, to the upper half of the oblique lateral incision and posterior horizontal incision. The limb is then put up in a plaster cast. Comment. — (i) The redundancy of tissue is soon taken up. (2) The limb is generally permanently a little lengthened, and a special boot is always to be worn. (3) Nourishment of the part occurs through the dorsalis pedis artery and its anastomoses with the plantar. (4) The section of bone below may be made through the three cuneiforms and cuboid. TOTAL EXCISION OF TARSUS — OR OSTEOPLASTIC RESECTION OF FOOT BY EXTERNO-LATERAL CURVED INCISION — MODIFICATION OF WLADIMIROFF- MIKULICZ OPERATION. Description. — Removal of all the tarsal bones, and sawing off of distal articular surfaces of tibia and fibula and proximal articular surfaces of meta- tarsals — with approximation of sawed tibia and fibula to sawed metatarsals — the foot being brought into a vertical line with the leg. This is a modification of the Wladimiroff-Mikulicz osteoplastic resection of the foot, and is prefer- able to that operation where the soft tissues of the heel do not have to be sacrificed. The patient walks on the balls of the toes and the phalanges. Position — Landmarks. — As for osteoplastic resection of posterior tarsus, page 516. Incision. — As for osteoplastic resection of posterior tarsus — except that the incision extends to near the end of the fifth metatarsal (Fig. 398, BC). Operation. — The exposure and freeing of the surfaces of the tarsal bones, lower end of the tibia and fibula, and bases of the metatarsals are accomplished in the same manner as described in freeing the bones involved in osteoplastic resection of the posterior tarsus, except that the clearing is more extensive. The origins and insertions of all the muscles and tendons into the bones to be removed are to be separated as encountered. All vessels and nerves are carefully guarded by working close to the bones. The tendons of the peroneus longus and brevis are freed from their sheath and drawn forward. The tendo Achillis is subperiosteally separated from the os calcis. The long dorsal, plantar, external and internal tendons are separated — and the short muscles as well. The tarsal bones are to be removed one by one while the foot is forcibly inverted, access being gained to the region, if neces- sary, by chiseling off the external malleolus. The articular ends of the tibia and fibula and of the metatarsals are exposed by thrusting them through the external wound and are sawed off. Their sawed surfaces are then placed in contact in a vertical line — the fibrous tissues brought together with chromic sutures, where indicated — the superficial wound closed — and the limb put up in a splint, or plaster, in such a manner as to retain this position. EXCISION OF TIBIA. IN GENERAL. Surgical Anatomy— Surface Form and Landmarks.— Given under Amputations about the Leg. General Surgical Considerations. — Where a subperiosteal excision is done, a very useful limb often results, even after the entire removal of the bone. The' articular ends should be left if possible. Any portion of the tibia may be removed through the corresponding part of the following in- cision. EXCISION OF FIBULA, IN GENERAL. 519 TOTAL EXCISION OF TIBIA BY INTERNAL VERTICAL IN'CISION. Position. — Patient supine; leg turned outward. Surgeon to outer side of right limb, cutting downward, and vice versa on left. Landmarks. — Inner aspect of tibia, which is practically everywhere subcutaneous. Incision. — Passes just in front of the inner border of the entire length of the tibia, from the knee-joint to the ankle-joint (Fig. 400, A). Operation. — The incision passes directly through periosteum to bone — running behind the tendons of the sartorius, gracilis, and semitendinosus above — and the internal saphenous nerve being recognized and retracted below. Once beneath the periosteum, the shaft of the bone is entirely freed subperiosteal!}' by means of a well-curved perios- teal elevator. The periosteum, together with all the muscles and tendons attached, is freed to near the articular ends. A chain or Gigli saw is then passed between the bone and periosteum and the bone divided at its center. Each end of the tibia is grasped in turn, with strong bone-forceps, and drawn outward — during which manoeuvre the articular end is freed up to the joint subperiosteo-capsularly — and disarticulated. The edges of the incision in the periosteum of the shaft, and in the capsules of either end, are now sutured with buried gut stitches. Temporary drainage is instituted at either joint end — the muscles and deep connective tissue quilted together, wherever indicated — the skin wound closed — and the limb put up on a straight splint. EXCISION OF FIBULA. IN GENERAL. Surgical Anatomy — Surface Form and Landmarks. — Given under Amputations about the Leg, pages 417 and 418. General Surgical Considerations. — (1) The fibula may be removed in whole or in part. (2) Removal of the outer malleolus is apt to be fol- lowed by eversion of the foot. A very useful limb, however, generally follows the subperiosteal exci- sion of the bone. (3) The superior tibio-fibular ar- ticulation often communicates with the knee-joint — it is, therefore, desirable to leave, if possible, the head of the fibula entirely, or, after cutting it off, gouge out the head, leaving a protective barrier of bone to intervene between the knee-joint. (4) In excising the upper half of the bone alone, a posterior vertical incision (part of the following incision) is used, passing behind the peronei mus- cles. (5) In excising the lower half alone, an antero-external vertical incision is used, passing in front of the peronei muscles. Fig. 400.— Excisions about Long Bones of Lower Ex- tremity: — A, Excision of tibia by internal vertical incision ; B, Excision of fibula by posterior vertical incision ; C, D, Exci- sion of portions of femur by ex- ternal vertical incision. 520 EXCISIONS. EXCISION OF FIBULA BY POSTERIOR VERTICAL INCISION. Position. — Patient supine; leg turned well to inner side. Surgeon and assistant stand as in excising the tibia (page 519). Landmarks. — Outline of fibula; articulations of superior tibio-fibular joint and ankle-joint. Incision. — Passes the entire length of the bone, from the tibio-fibul ir articulation to the ankle-joint — running down behind the peroneus longus and brevis muscles, along the posterior aspect of the bone (Fig. 400, B). Operation. — The above incision is first made through skin and fascia — and then deepened through periosteum to bone— guarding the external popliteal nerve above, where it winds around the neck of the bone, and the peroneal artery behind the lower half of the bone. The bone is reached, above, between the peroneus longus in front, and soleus, behind — and, below, between the peroneus longus and brevis, in front, and flexor longus hallucis, behind. Once beneath the periosteum, this membrane is raised from the bone in as nearly one layer as possible, and to as near the articular ends of the bone as possible, together with the overlying muscles and tendons still attached. A chain or Gigli saw is then slipped between bone and perios- teum and the bone divided in its middle. Each end is then grasped by bone- forceps and drawn outward — and, while so held, is further freed of its perios- teum, and, at its articular ends, of its periosteo-capsular covering. The articular ends are then disarticulated at the ankle-joint and at the superior tibio-fibular articulation (see General Surgical Considerations, page 519). Avoid opening into the knee-joint, if possible, and injury to the anterior tibial and musculocutaneous nerves. It is preferable to preserve the upper and lower articular ends in situ — making the section just beyond the articu- lation, unless contraindicated. The long periosteal and peristeo-capsular wound is now sutured with catgut — muscles quilted — temporary drainage instituted, if the articulations have been opened up — the wound closed— and the limb put up on a long splint. EXCISION OF PATELLA BY VERTICAL INCISION. Description. — The patella, which may be considered a sesamoid bone developed in the quadriceps extensor tendon, is simply shelled out of that structure, through a single anterior longitudinal incision, with • minimum damage to the surrounding structures, and especially the knee-joint. Position. — Patient supine; limb extended. Surgeon cuts from above downward on right, and vice versa on left. Landmarks. — Contour of patella. Incision.— The incision passes through skin, fascia, prepatellar bursa, quadriceps aponeurotic expansion, and periosteum to bone. Working be- neath the periosteum with rugine and curved periosteal elevator, the bone is freed from its soft parts and from the anterior surface of the capsule and thus enucleated. The cut margins of the capsule are now sutured with buried gut stitches— the split quadriceps expansion similarly sutured— the wound closed — and the limb put up in extension. EXCISION OF KNEE-JOINT, IN GENERAL. 521 EXCISION OF KNEE-JOINT, IN GENERAL. Surgical Anatomy— Surface Form and Landmarks.— Given under dis articulation at the knee-joint, pages 430 and 431. General Surgical Considerations. — (1) In excision of the knee-joint, the articular ends of the femur and tibia are removed — the sawed ends of the bones are approximated — and firm ankylosis in full extension is sought. (2) The lower epiphysis of the femur is to be saved in the young, if possible. (3) The patella may be left, if healthy — but should be removed, in whole or in part, if diseased. (4) The subperiosteal method of excision is almost impracticable. After-treatment. — The limb is put up fully extended, and so kept for Fig. 401. — Showing Relations of Femur, Tibia, and Fibula at the Knee-joint. one and a half to three months — followed by other support for several months longer. An extra-soled shoe is used for the unavoidable shortening. Results. — The result is satisfactory where ankylosis in a good position is secured. Flail and useless limbs sometimes occur. There is a tendency of the femur to glide forward. If the whole of the trochlear surface be re- moved, the epiphysis (the chief source of growth of the lower extremity) will be lost. Best Method. — Curved Transverse Anterior Incision; Vertically Curved External Incision (Kocher). 522 EXCISIONS. Other Methods. — Anterior U-shaped Flap; Anterior Vertical Incision, with temporary splitting or retraction of patella. Transverse Incision (through patella, or removing patella). Crucial Incisions. H -shaped Incision. EXCISION OF KNEE-JOINT BV CURVED TRANSVERSE ANTERIOR INCISION. Position. — Patient supine, near edge of table, with leg half over end of table. Surgeon on side of operation, or on outer side of right and inner side of left knee. One assistant steadies the thigh — another ma- nipulates the leg. At the beginning of the operation, the knee is slightly flexed, and subse- quently bent at a right angle. Landmarks. — Posterior margins of the femoral condyles; tubercle of tibia. Incision. — Begins at posterior margin of one femoral condyle (which is about 1.3 cm. — \ inch — above the lowest articular sur- face) and ends at the posterior margin of the opposite condyle — curving downward in front to midway between the lower margin of the patella and insertion of the ligamentum pa- tella? (Fig. 402). Operation. — (1) The above incision, made while the knee is slightly flexed, passes through skin and fascia — and is then deepened, cutting through anterior capsule and ligamentum pa- tella;, thus opening the knee-joint. The divi- sion of the ligamentum patella? at its center will permit of the subsequent suturing of its ends. (2) Turn the patella and its apo- neurosis upward — further Ilex the joint and di- vide both lateral ligaments and both crucial ligaments. (3) Bend the joint to a right angle, with sole of foot on table and leg support- ing thigh. Now clear the femur to the saw- line, retracting the soft parts and guarding the popliteal region. The femur is then sawed (holding the saw vertically) just above the articular line — the antero-posterior section being at a right angle to the shaft of the femur — and the transverse section parallel to the articular surfaces of the condyles (Fig. 401). (4) The upper end of the tibia is now freed while in the vertical position, down to the saw-line — the soft parts retracted — the popliteal region guarded — and the articular end of the tibia sawed off, holding the saw horizontal and parallel with the articular surface. (5) If healthy, the patella may be left. If the articular surface be slightly diseased, the bone is steadied with bone-holding forceps while the articular surface is removed with a saw or chisel, or the diseased bone is gouged away. If badly diseased, it is entirely dissected out. It is often removed, whether healthy or not — but it is better to leave it, if uninvolved. Fig. 402.— Excision of Knee- joint : — By curved transverse ante- rior incision. EXCISION OF THE KNEE-JOINT. 523 (6) The pouch beneath the quadriceps extensor tendon is opened up and curetted out — and all other synovial recesses similarly treated. (7) The end of the bones are now approximated with extreme care, and retained in position according to the individual ideas of the surgeon (by pegging, wiring, simple suturing of periosteo-capsular sheath and fibrous tissues around the margins of the two ends ; or simply by apposition of the ends and the use of a plaster or other splint). (8) If the curved incision have severed the ligamentum patelke a short distance above the tubercle of the tibia, which is desirable, the cut ends of the ligament are now sutured with chromic gut. (9) Tempo- rary drainage is established from either angle of the wound — the subcutaneous soft parts brought together with buried gut sutures — the skin-wound closed — and the limb put up upon a posterior splint in full extension. Comment.— (1) Only branches of the articular, anastomotica magna, and anterior tibial recurrent are cut, and rarely require ligature. (2) Much of the ease of the efficient exposure of the joint structures will depend on carrying the limbs of the incision to the posterior margin of the femoral condyles. (3) The posterior ligament is separated from the femur and tibia, in preparing them for the saw — and carefully kept intact throughout the operation, as a barrier to the important popliteal region. (4) The retention of the patella is of no special service, as ankylosis of the joint is sought. If removed, it should be done as subperiosteal^ as possible, from the articular aspects, to preserve all the overlying tissues, if these be healthy. (5) As little of the femur should be removed as possible, especially in the young. (6) Be on guard for the internal saphenous vein and nerve at the back part of the inner portion of the incision. (7) If the bone sections be not made in the proper planes, the limb may be knock-kneed or bow-legged, accordingly. In such an event, another section of bone should be made, of tibia or femur, or both. The limb should be absolutely straight. EXCISION A OF THE KNEE-JOINT BY VERTICALLY CURVED EXTERNAL INCISION KOCHER'S METHOD. Description. — The joint is exposed by a curved external incision, having a general longitudinal direction. The tibial tubercle is chiselled off, retaining its periosteal attachment. The soft parts, including the quadriceps apparatus, are displaced to the inner side — the crucial ligaments severed, and the artic- ular ends of the bones thrown out. The femur is sawn convexly and the tibia concavely, so that the sawn surfaces will fit each other reciprocally. Position. — For the making of the incision, the knee is placed somewhat upon its inner aspect, to render the outer aspect prominent. Landmarks. — Vastus externus; patella; tibial tuberosity; anterior border of tibia. Incision. — Begins over the vastus externus, about 8 cm. (3 inches) above the upper border of the patella — extends vertically downward 1.5 cm. (J inch) external to it — thence curves slightly inward, ending at the anterior border of tibia just below the tibial tuberosity (Fig. 403, A). Operation. — Divide the skin and the dense fascia lata in the line of the incision. The outer margin of the vastus externus is exposed and divided in the upper aspect of the wound. The external surface of the capsular ligament, fatty tissue, and the external margin of the ligamentum patella? are exposed. The ligament of the patella is freed down to the tubercle of the tibia. The tibial tubercle, together with the patellar ligament and periosteum, are chiselled 524 EXCISIONS. off subcortically and retracted inward — the soft attachments being carefully maintained. The capsular ligament is incised over the outer part of the external condyle and the great synovial sac beneath the quadriceps opened up. The anterior end of the external semilunar cartilage is cut away from the tibia Fig. 403. — Excisions about the Lower Extremity: — A, Excision of knee-joint by vertically curved external incision (Kocher); B, Excision of hip-joint by external straight incision (Langenbeck); C, Excision of innominate bone (Kocher). and drawn aside without separating it from the capsule. The patellar ligament is retracted inward, and, after severing the anterior end of the internal semilunar cartilage from the head of the tibia, the cartilage, together with the capsule and periosteum, is detached from the margin of the internal condyle. The EXCISION OF THE KXEE-JOIXT. 525 patella is now dislocated to the inner side of the limb. The capsular ligament is detached from both sides of the tibia — until the leg can be flexed completely. The attachments of the crucial ligaments and the posterior attachments of the semilunar cartilages are separated from the head of the tibia back to its poste- rior surface. If it is intended to remove the articular ends of the bones, the upper ends of the crucial ligaments are detached from the intercondyloid fossa in such a manner that, together with the semilunar cartilages, they remain attached to the posterior aspect of the capsule and the periosteum. The capsule of the joint is now divided on a level with the condyloid cartilages of the femur — and (provided it is not to be removed) it is separated backward subperiosteally to the superior attachments of the lateral ligaments. The Fig. 404. — -Excision 7 of Knee-joint: — By anterior U-shaped incision. capsule and periosteum are separated from the posterior aspect of the tibia. The femur is then sawn below the level of the separated lateral ligaments in such a manner as to leave a convex surface from before backward — and the tibia is sawn so as to leave a concave surface from before backward — thus forming reciprocally fitting surfaces of bone. Where the capsule has been preserved, it is sutured together along the line of original incision, making provision for drainage — after which the skin and superficial parts are united by suture, up to the exit of the drains. The limb is then dressed in an immo- bilizing splint. Comment. — Where the disease extends upward, the lateral ligaments are detached higher, chiselling off the epicondyles. All involved tissue is removed, even exceeding the above limits if indicated. 526 EXCISIONS. EXCISION OF FEMUR, IN GENERAL. Surgical Anatomy — Surface Form and Landmarks. — Given under Amputations about the Thigh. General Surgical Considerations. — (1) Excision is generally confined to the removal of limited portions of the diaphvsis of the femur. But the removal of the entire shaft, subperiosteally, especially in the young, has been followed bv the reproduction of bone and a very useful limb. After-treatment. — In the young, the limb should be under traction to the same length as the other, and held rigidly in a splint. In the old, where only a limited amount of bone is removed and satisfactory reproduction of bone is not likely, the sawed ends are to be approximated, and the shorter limb built up by a shoe on that side, as a solid shorter limb is better than a flail longer one. EXCISION OF PARTS OF DIAPHYSIS OF FEMUR BY EXTERNAL VERTICAL INCISION. Description. — Portions of the entire thickness of the femur, between the articular ends, have been removed with successful result. Also see General Surgical Considerations, page 526. Position. — Patient on back, turned slightly to one side, to expose outer aspect of thigh. Surgeon stands behind limb, cutting from above downward on right, and vice versa. Assistant opposite surgeon. Incision.— Down outer side of thigh, in groove between posterior border of vastus externus and biceps — and extending from base of great trochanter to base of external condyle — or part of the way, as indicated — (Fig. 400, C and D). Operation. — The incision first passes through skin, fascia, and fascia lata. The intermuscular plane just mentioned is identified in the upper portion of the wound and followed to the bone. The transverse terminal branch of the external circumflex artery is encountered above, passing beneath the vastus externus muscle — and the superior external articular artery below, winding around the bone. The incision is carried directly through perios- teum to bone. The periosteum is then freed, together with attached muscles and tendons, from the entire circumference of the femur, by means of fully curved rugine and periosteal elevators, especially along the inner and outer lips of the linea aspera. Having freed the center of the shaft, pass a chain or Gigli saw between bone and periosteum — divide the bone — grasp either end with bone-forceps and draw outward — and further free the bone while thus held, as far upward and downward as indicated. Then again pass the chain saw subperiosteally at either end and divide. If feasible, the femur may be freed over the entire length and circumference of the part to be re- moved, and then a chain saw passed at the upper and lower limits and the bone thus divided but twice. Suture periosteal sheath — quilt the muscles with buried sutures — close the wound — and put the limb up in a rigid, straight splint (v. After-treatment, page 526). EXCISION OF HIP- JOINT, IN GENERAL. Surgical Anatomy — Surface Form and Landmarks. — Given under Disarticulation of Hip-joint, pages 450 and 451. EXCISION OF HIP-JOINT, IN GENERAL. 527 General Surgical Considerations. — (1) Excision of the hip-joint con- sists in the removal of the upper end of the femur and scraping of the acetabu- lum. (2) No tourniquet is necessary — the slight hemorrhage encountered is from small vessels which are controlled as divided. (3) According to some, the section of the bone should, as a rule, be made below the great trochanter, for even where less of the bone is involved, retention of the great trochanter is apt to be followed by harmful pressure (Fig. 405, B). According to other surgeons, as little of the bone should be removed as possible, together with the minimum disturbance of the muscles of the trochanters (Fig. 405, A) . After-treatment. — The limb is kept at absolute rest- — in full extension — with the sawed end of the femur slightly separated from the acetabular cavity. Results. — A movable and useful joint generallv follows. Ankvlosis or a flail limb is exceptional. Some atrophy generally occurs — and there is always some shortening. Fig. 405. — Lines of Section of Head of Femur in Excision of the Hii'-joint: — A, Transcervical section; B, Subtrochanteric section. (Modified from Gray. J Best Methods. — Anterior Straight Incision (Barker). External Straight Incision (Langenbeck). Posterior Angular Incision (Kocher). Other Methods. — Curved Retro-trochanteric Incision. Comparison of Methods. — Each method has its own special indication. The method by external incision is, on the whole, probably the best. The anterior incision does least harm to neighboring structures, dividing no muscles (which the external and posterior incisions do). The posterior incision gives the freest access to the joint and the best drainage. 528 EXCISIONS. EXCISION OF HIP- JOINT BY EXTERNAL STRAIGHT INCISION — LANGENBECK'S OPERATION. Position. — Patient on sound side; thigh flexed at an angle of 45 degrees and rotated inward. Surgeon to outer side of hip. Assistant, grasping knee and foot, rotates and manipulates the limb as indicated. Landmarks. — Great trochanter. Incision. — Begins over the ilium, about 7.5 cm. (3 inches) above the upper border of the great trochanter (which is about opposite the upper margin of the great sacrosciatic notch) — passes downward for 11.5 to 12.5 cm. (4 \ to 5 inches) in the long axis of the limb, lying just behind the center of the outer surface of the great trochanter, and ends just below the base of the great trochanter. (In the above position of the limb, the direction of the incision will be represented by a straight line from the posterior superior iliac spine, passing down the center of the long axis of the limb.) (Fig. 403,6.) Operation. — (1) This incision passes, at first, through skin and fascia — then through the gluteus maximus, dividing it, approximately, in the line of its fibers. (2) The gap between the gluteus medius in front, and pyriformis behind, is sought and widened to the joint by retraction — and the capsule of the joint and periosteum of the great trochanter are divided to the bone in the line of the original incision. If necessary, the capsule of the joint is further divided transversely. By means of curved rugine and periosteal elevator, the anterior and posterior capsulo-periosteal flaps are raised, sub- periosieally, if possible — or by the open method. (3) The cotyloid ligament is cut by thrusting a stout knife between the head of the bone and the cotyloid ligament and cutting the ligament toward the rim of the acetabulum, and air thus allowed to enter and separate the articular surfaces. In those cases where difficulty is experienced in admitting air to the joint cavity, a small portion of the rim of the acetabulum, with its cotyloid cartilage, may be chiseled away 'over about 1.3 cm. (J inch) of the circumference. (4) The muscles attached to the outer and posterior surfaces of the great trochanter are now raised sub- periosteally, or severed, while an assistant, grasping the knee and foot, rotates the thigh inward, — and those attached to the anterior surface and lesser tro- chanter while the thigh is rotated outward. (5) The ligamentum teres is now divided and the head of the bone dislocated backward and outward bv depressing the limb (if the thigh partly rests over the end of the table as a fulcrum) and rotating outward. (6) The soft parts are further cleared from the upper end of the femur and retracted. While steadied with bone-holding forceps, the head of the femur is sawed below the great trochanter, with slight obliquity, from above downward, and from without inward. (7) The ace- tabular cavity is scraped or cleared with a gouge. All synovial recesses are curetted. (8) Temporary drainage is instituted — the capsule sutured — the muscles quilted — the wound sutured — and the limb put up in extension (see After-treatment, page 527). Comment. — (1) Only minor hemorrhage occurs, seldom necessitating ligature. (2) The strength of the capsule is increased if its transverse division be avoided. (3) Some surgeons remove as little of the head of the femur as possible, sawing through the neck — but it is generally better *to saw below the great trochanter, as this mass of bone, if left, is apt to be drawn up and constantly press the cicatrix. (4) Considerable division of muscle is made. EXCISION OF HIP-JOINT. 529 EXCISION OF HIP- JOINT BY ANTERIOR STRAIGHT INCISION — BARKER'S OPERATION. Position. — Patient supine; limb extended. Surgeon on side of operation. Assistant steadies limb. Landmarks. — Anterior superior iliac spine; groove between tensor vagi- na? femoris and glutei on outer side, and sartorius and rectus on inner side. Incision. — Begins on front of thigh, about 1.3 cm. (h inch) below the anterior superior iliac spine — passing downward and slightly inward for 7.5 to 10 cm. (3 to 4 inches), in groove formed, on inner side, by sartorius and rectus, and, on outer side, by ten- sor vaginae femoris and glutei (Fig. 406). Operation. — (1) This incision passes through skin and fascia, at first. The external cutaneous nerve is avoided, being retracted outward, if in the way. The above intermuscular groove is rec- ognized and the muscles forming it retracted inward and outward. (2) The terminal branch of the transverse division of the external circumflex artery is encountered and generally requires ligation. The parts are further drawn aside and the joint reached without any division of muscles whatever, or of any vessels or nerves of im portance. (3) An incision is now made over the anterior aspect of the joint, in line with the original incision, passing through the capsule into the joint and on to the head of the femur. (4) The cotyloid ligament is in- cised to admit air into the joint and enable the head of the femur to be drawn down lower. The neck of the bone is exposed and divided in situ with a nar- row saw, or with a chain or Gigli saw — the soft parts being as much retracted as possible. The severed head is then seized with strong bone-forceps and removed, the ligamentum teres having been cut. (5) The acetabular cavity and recesses of synovial membrane are curetted with Barker's flushing-gouge — and the operation completed as in the excision by external incision. Tem- porary drainage is used and is best accomplished through a counter-opening made posteriorly. Comment. — Disarticulation may be accomplished as in the external incision and the head excised outside of the wound. Fig. 406. -hxcisioN of Hip-joint : — By anterior straight incision. 53° EXCISIONS. EXCISION OF HIP-JOINT BY POSTERIOR ANGULAR OR CURVED INCISION — KOCHER'S OPERATION. Position. — Patient on sound side; hip prominent; knee semiflexed and rotated inward. Surgeon stands behind hip. Assistant steadies the part. Landmarks. — Great trochanter; direction of fibers of gluteus maximus. Incision. — Begins at base of exter- nal aspect of great trochanter — passes thence upward and forward to its an- terior superior angle — and then runs obliquely upward and inward in the line of the filters of the gluteus maxi- mus (Fig. 407). Operation. — (1) Theincision passes through skin and fascia, at first. Di- vide the aponeurosis of the gluteus maximus over the external aspect of the great trochanter — and ligate the cut branches of the external circumflex ar- tery. (2) Divide the fibers of the mus- cular portion of the gluteus maximus in the upper part of the wound, and ligate the cut branches of the gluteal artery. (3) Dissect through the intermuscular fat and fascia and expose the interval between the gluteus medius and mini- mus above and pyriformis below — drawing the two former upward and the latter downward. Thus the pos- terior part of the capsule and acetabu- lum are approached and exposed. (4) Divide the capsule along the superior border of the pyriformis. Rotate the thigh outward and subperiosteally sep- arate the gluteus medius from the outer surface and the gluteus minimus from the anterior border of the great trochanter, raising a thin layer of bone, with rugine or chisel, if necessary. Then subperiosteally detach the pyriformis, obturator interims, and gemelli from the inner aspect of the great trochanter, and the obturator externus from the digital fossa. (5) Rotate the thigh inward and free the inner and posterior aspects of the great trochanter. The head, neck, and great trochanter are thus cleared. Some branches of the internal circumflex may require ligation near the capsule of the joint, and branches of the external circumflex near the base of the great trochanter. (6) Cut the internal cotyloid ligament to admit air — divide the ligamentum teres from behind, on the head of the femur while the limb is adducted, flexed, and rotated inward. The head is now dislocated through the wound by outward rotation, and removed. (7) The periosteo-muscular wound is sutured with buried chromic gut stitches — the muscles quilted — temporary drainage established — the wound closed — and the limb put up upon a splint in extension. Comment. — The above operation is really a development of Langenbeck's external incision, but admits of freer access to the joint and gives better drainage. Fig. 407. — Excision of Hip- joint: — By posterior angular incision. The angularity of this incision may be changed to a curve. EXCISION OF THE INNOMINATE BONE. 53 1 EXCISION OF THE INNOMINATE BONE kocher's operation. Description. — The entire removal of one of the innominate bones may be required by extensive growths of the bony pelvis. Position. — The patient rests upon the uninvolved side, and is turned toward his face or his back during the progress of the operation. Landmarks. — Sacro-iliac joint; crest of ilium; Poupart's ligament. Incision. — Begins at the sacro-iliac joint — passes along the crest of the ilium — and thence along Poupart's ligament (Fig. 403, C). Operation. — Divide the abdominal muscles from their attachment to Poupart's ligament and the crest of the ilium. Separate the transversalis fascia and the peritoneum from the pelvic floor as far inward as the iliac vessels and retract them further inward. The smaller nerves are cut — and the smaller arteries clamped and tied. The muscles posterior to Poupart's ligament and external to the iliac vessels are isolated and divided. Separate and detach as far back as the sacro-iliac joint the rectus femoris, sartorius, tensor vaginae femoris, and the iliac attachments of the gluteus medius and minimus. Divide the ilio-psoas muscle and the capsule of the joint. Sub- periosteally expose the pubis and ischium and divide them with Gigli saw, chisel, or bone-cutting forceps. The innominate bone can now be displaced downward. The remainder of the posterior aspect of the pelvis is exposed and the attachments of the flexor muscles severed. The great sacro-sciatic ligament is cut from the tuber ischii, and the lesser sacro-sciatic ligament from the ischial spine. While there is considerable bleeding from smaller vessels, no artery had to be ligated in Kocher's case. The wound healed by primary union. Kocher suggests, however, that the internal iliac vessels be ligated when exposed in the wound. The lower limb is immobilized in line with the trunk. PART II. THE OPERATIONS OF SPECIAL SURGERY. CHAPTER I. OPERATIONS UPON THE HEAD. I. THE CRANIO-CEREBRAL REGION. SURGICAL ANATOMY OF SCALP, SKULL, AND BRAIN. Muscles in Relation with Outer Surface of Skull.— Anteriorly; frontal portion of occipitofrontalis; corrugator supercilii; orbicularis pal- pebrarum. Posteriorly; occipital portion of occipitofrontalis; trapezius; sternomastoid ; complexus; splenius capitis; rectus capitis posticus minor and major; obliquus capitis superior; trachelomastoid; digastric; rectus capitis lateralis. Laterally; aponeurosis of occipitofrontalis; temporal; attrahens aurem; attolens aurem; retrahens aurem; external pterygoid. Superiorly; aponeurosis of occipitofrontalis. Arteries of Scalp. — Anteriorly; frontal and supraorbital branches of ophthalmic. Posteriorly; occipital and posterior auricular branches of external carotid. Laterally ; superficial temporal branch of external carotid, with its anterior and posterior branches; posterior auricular branch of ex- ternal carotid. Veins of Scalp. — Anteriorly; frontal, emptying into angular vein; supraorbital, emptying into frontal and ophthalmic veins. Posteriorly; occipital, emptying into deep cervical vein; posterior auricular, emptying into temporomaxillary vein. Laterally; anterior, middle, and posterior temporal veins; forming common temporal, which empties into temporo- maxillary vein; posterior auricular, emptying into external jugular. Nerves of Scalp. — Anteriorly; supraorbital branch of ophthalmic. Posteriorly; occipitalis major, from cervical plexus. Laterally; temporal branches of facial; auriculotemporal branch of inferior maxillary; occipitalis minor, from cervical plexus; auricularis magnus, from cervical plexus. Parts of Brain. — Medulla oblongata; pons varolii; cerebellum; crura cerebri (mid-brain) ; cerebrum. The only parts of the brain at present accessible to operation are the cerebrum and cerebellum. Chief Fissures upon Surface of Cerebrum. — Great Longitudinal Fissure ; extending antero-posteriorly in the median line and separating the hemispheres of the cerebrum. Sylvian fissure; most important of the in- complete fissures of the brain. Forms boundary between frontal and tem- poro-sphenoidal lobes. Contains middle cerebral artery. Begins at anterior perforated space, upon base of brain, and, running outward, divides into an anterior limb (passing forward into inferior frontal convolution), an ascending 533 534 OPERATIONS UPON THE HEAD. limb (passing upward also into inferior frontal convolution), and a horizontal or posterior limb (representing the continuation of sylvian fissure, passing backward and upward). Rolandic fissure; second most important incom- plete fissure of brain. Forms boundary between frontal and parietal lobes. Extends from great longitudinal fissure, at a point about 55 per cent, of the distance from the nasion to the inion, to or nearly to horizontal limb of fissure of Sylvius. Parieto-occipital fissure ; forms boundary between parietal and occipital lobes. Begins about half-way between rolandic fissure and posterior extremity of brain — its outer portion extending downward and forward upon external aspect of brain for about one inch — its inner portion extending upon internal aspect of hemisphere. These four fissures just mentioned divide the surface of the cerebrum into the five following lobes. Chief Lobes of Cerebrum. — Frontal lobe; forms forepart of hemi- sphere — rests upon orbital plate of frontal bone — presents three surfaces. Boundaries; Posteriorly, rolandic fissure, — Inferiorly, orbital plate of frontal bone and horizontal limb of sylvian fissure, — Internally, calloso-marginal fissure. Frontal (supero-external) surface, presents precentral, superior frontal, and inferior frontal sulci, — and ascending frontal, superior frontal, middle frontal, and inferior frontal convolutions. Orbital (inferior) surface, presents triradiate (or orbital) and olfactory sulci, — and internal orbital, anterior orbital, and posterior orbital convolutions. Mesial (internal) sur- face, is given below. Parietal lobe ; that portion of convexity of brain lying between frontal and occipital and above temporal lobes. Boundaries; Anteriorly, rolandic fissure, — Posteriorly, external parieto-occipital fissure and a line continuing its course, — Inferiorly, horizontal limb of sylvian fissure and a line connecting this fissure with inferior end of superior occipital sulcus, — Internally, it is continued into the mesial surface of the hemisphere. Sulcus; intraparietal (consisting of superior and inferior vertical and horizontal parts). Convolutions; ascending parietal; superior parietal; supramarginal and angular gyrus. Occipital lobe ; posterior extremity of hemisphere — rests upon tentorium — continuous with parietal lobe above and temporal lobe below. Boundaries; Anteriorly; external parieto-occipital fissure and a line continuing its course, — Posteriorly; superior fossa of occipital bone, — Inferiorly; tentorium, — Internally; it is continued into the mesial surface of hemisphere. Sulci; superior, middle (often but faintly marked) and inferior occipital. Convolutions; superior, middle, and inferior occipital. Temporal or temporo-sphenoidal lobe ; that portion of hemisphere within middle fossa of skull — continuous with parietal and occipital lobes behind. Boun- daries; Anteriorly and Superiorly; sylvian fissure, — Inferiorly, middle fossa of skull, — Posteriorly; continuous with parietal and occipital lobes. Sulci; superior (first temporal or parallel), middle (second temporal), inferior temporal (on under surface). Convolutions; superior, middle, inferior (or first, second, third) temporal, — and an external occipitotemporal (or fourth temporal) on the under surface. Central lobe, or island of Reil; corre- sponds to floor of embryonic fossa of Sylvius — is situated at base of brain, in fissure of Sylvius — and is composed of five to seven gyri operti divided by the sulci of Reil. Boundaries; separated by anterior sulcus Reilii from poste- rior orbital convolution; by external sulcus Reilii from inferior frontal, ascend- ing frontal, and ascending parietal convolutions; by posterior sulcus Reilii from temporal lobe. Mesial Fissures and Lobes of Cerebrum. — Fissures; calloso-marginal; parieto-occipital; calcarine; collateral; dentate. Lobes; gyrus fornicatus, SURGICAL ANATOMY OF SCALP, SKULL, AND BRAIX. 535 marginal, paracentral, quadrate (precuneus); cuneate; infracalcarine (fifth temporal); hippocampal; uncinate; fourth temporal. Cerebellum. — Occupies inferior occipital fossae of skull, separated from occipital lobes of brain by tentorium — and is divided into a central lobe (or worm) and two lateral lobes (or hemispheres). Fissures upon superior surface of central and lateral lobes; precentral, post-central, preclival, post- clival. Lobules upon superior surface of central and lateral lobes; lingula; lobulus centralis; culmen; clivus; folium cacuminis, lobules of the central lobe; — and frenulum ; ala; anterior crescentic, posterior crescentic and posterior superior, lobules of the lateral lobes. Fissures upon the inferior surface of central and lateral lobes; post-nodular; prepyramidal; post-pyr- amidal. Lobules upon inferior surface of central and lateral lobes; tuber valvulae; pyramid; uvula and nodulus, lobules of central lobe; — and postero- inferior; digastric; amygdala and flocculus; lobules of lateral lobes. Meningeal Arteries. — Chief meningeal arteries; Middle Meningeal branch of internal maxillary, entering skull through foramen spinosum in middle fossa, ascends a short distance in groove on great wing of sphenoid, dividing into anterior and posterior branches. Anterior Branch of middle meningeal ascends in groove upon great wing of sphenoid, up to and upon anterior inferior angle of parietal bone (corresponding to a point on exterior of skull approximately 3.8 cm. [1^ inches] behind and 2.5 cm. [1 inch] above external angular process of frontal bone), and is continued thence upward and backward, more or less parallel with anterior border of parietal bone, nearly to superior longitudinal sinus, giving off branches running backward. Corresponds, approximately, with points respectively 2.5, 3.8, and 5 cm. (1, ii, and 2 inches) both above zygoma and behind external angular process. Posterior Branch of middle meningeal runs backward and upward over squamous portion of temporal bone — less regular in its course than anterior branch — gives off branches which pass upward to superior longitudinal sinus and backward to lateral sinus. (For anatomy of these important arteries in greater detail, see Ligations, pages 44-46.) Other meningeal arteries; In Anterior Cranial Fossa ; anterior meningeal branches of anterior and pos- terior ethmoidal (through anterior and posterior internal orbital canals) ; twigs of middle meningeal (through great wing of sphenoid) ; — In Middle Cranial Fossa ; branch of ascending pharyngeal (through cartilage of foramen lacerum medium) ; meningea parva (through foramen ovale) ; meningeal branch of internal carotid; twigs of middle meningeal, — In Posterior Cranial Fossa; meningeal branch of occipital (through posterior compartment of jugular foramen) ; another meningeal branch of occipital (through mastoid foramen) ; meningeal branch of ascending pharyngeal (through posterior compartment of jugular foramen) ; another meningeal branch of ascending pharyngeal (through anterior condyloid foramen) ; meningeal branch of vertebral (through foramen magnum). Another meningeal branch of occipital sometimes enters through parietal foramen. Chief Cerebral Arteries. — Anterior Cerebral; — Middle Cerebral, larger terminal division of internal carotid and most important, surgically, of the intracerebral vessels, supplying the motor convolutions of the brain — runs upward and outward in fissure of Sylvius, dividing opposite island of Reil into, (1) Ganglionic or Central Branches (caudate branches; antero-lateral branches): Lenticulo-striate branch, or "artery of cerebral hemorrhage," a larger branch of antero-lateral set, enters outer part of anterior perforated space, passes upward between lenticular nucleus and external capsule, pierces internal capsule and ends in caudate nucleus: (2) Hemispheral or 536 OPERATIONS UPON THE HEAD. Cortical Brandies (inferior or orbitofrontal; ascending frontal; parietal; parieto-temporal) ; — Posterior Cerebral: — Anterior Communicating; — Poste- rior Communicating; — Basilar. Chief Cerebellar Arteries. — Superior cerebellar; anterior cerebellar; inferior cerebellar. Venous Sinuses of Dura Mater. — (i) More superficial sinuses; — Superior longitudinal sinus; extends from foramen caecum, at lower part of frontal bone, along median line, in attached margin of falx cerebri, to torcular Herophili in depression of internal occipital protuberance. Generally deviates slightly to right in the back part of the skull. Posteriorly, the longitudinal sinus extends 6 mm. (j inch) to left, and 15 mm. (f inch) to right of external occipital protuberance, which measurement of 2 cm. (f inch) represents width of longitudinal sinus, at this site, and attachment of falx cerebri. Lateral sinus; extends outward, forward, and downward, passing from internal occipital protuberance along lateral sinus groove of occipital, posterior inferior angle of parietal, mastoid process of temporal and jugular process of occipital, to end in posterior compartment of jugular fossa. From the internal occipital protuberance the lateral sinus forms a slight curve, with upward convexity, to back of ear, on level with upper border of meatus auditorius externus, constituting the transverse portion of the lateral sinus, — and thence passes in a curved line, convexity forward, over prominence of mastoid process to its apex, as far as a point 5 mm. ( T 3 g- inch) below lower border of external auditory meatus, thus forming the sigmoid portion of the lateral sinus. The Transverse portion of the Longitudinal Sinus lies above a straight line drawn from the external occipital protuberance to the center of the external auditory canal — its highest portion (which is opposite the posterior inferior angle of the parietal, at masto-parietal suture) lying from 15 to 25 mm. (f to 1 inch), generally averaging from 15 to 20 mm. (I to if inch), above this line, and somewhat external to its center. The Sigmoid portion of the Longitudinal Sinus generally lies from 10 to 12 mm., or -j- 7 ^ to h inch (extremes 2 to 12 mm., or nearly § to ^ inch), from the poste- rior wall of meatus auditorius externus (corresponding, approximately, to posterior reflection of skin from pinna of ear to head). Distance of sinus from surface of mastoid process varies from 1 to 15 mm., or from nearly y 1 ^ to f inch (average distance being about 7 mm., or f inch). Width of sig- moid portion of sinus (which is larger than transverse portion) is from 5 to 15 mm. (j to f inch). Right lateral sinus is generally larger, more forward, and more superficial than left. Junction of transverse and sigmoid portions lies directly below anterior part of parieto-mastoid suture. Inferior longi- tudinal sinus; situated in free margin of falx cerebri. Straight sinus; extends along line of junction of falx cerebri and tentorium. Occipital sinus; contained within attached border of falx cerebelli. (2) Sinuses at base of skull; — circular, transverse, cavernous, superior petrosal, inferior petrosal. Chief Veins of Cerebrum. — Cortical (Hemispheral or Superficial), consisting of superior and inferior cortical veins, which empty chiefly into the more superficial venous sinuses of the dura mater; — Central (Ganglionic or Deep), collect into two venae Galeni, which unite to form the vena magna Galeni, which empties into the straight sinus; — Basilar, which enters vein of Galen. Chief Veins of Cerebellum. — Superior and Inferior veins. CHIEF CRANIAL LANDMARKS. CHIEF CRANIAL LANDMARKS. 537 Nasion: mid-point of naso-frontal suture; most important anterior median landmark. Glabella: point in median line between superciliary arches; unreliable, may be an elevation or a depression. Bregma (anterior fontanelle) : point where coronal, sagittal, and frontal sutures meet; just in front of center of line between the two auditory meatuses. Coronal Suture: on line from bregma to middle of zygomatic arch, running 2.5 to 3.8 cm. (1 to ij inches) anterior to rolandic fissure. Obelion: point on sagittal suture on a line running between the two parietal foramina. Lambda (posterior fontanelle): junction of lambdoid and sagittal sutures; 8 to 10 cm. (3y\ to 4 inches) behind superior rolandic point (a point 55 per cent, of distance from nasion to inion, on median line), or 6 to 7 cm. (2§ to 2| inches) above external occipital protuberance. Lambdoid (or parieto-occipital) Suture: sometimes an elevation of superior border of occipital bone marks this suture, which is roughlv represented by a line from the external occipital protuberance to the lower part of the tip of the mastoid process. Inion (or external occipital protuberance) : most important posterior median landmark. Superior Occipital Curved Lines (nuchal line) : running from the external occipital protuberance outward toward mastoid process, marking the posterior junction of the head and neck. External Occipital Crest: from external occipital protuberance to center of posterior border of foramen magnum; sometimes palpable. Nuchal Furrow: depression in median vertical line between posterior muscles of neck, having in its center, above, the external occipital protuberance; its upper end corresponding with inner ends of superior curved occipital lines. Orbit: margin everywhere palpable. Supraorbital Arch: palpable throughout. Internal Angular process: inner end of supraorbital arch. External Angular Process: outer end of supraorbital arch. Superciliary Ridge: first prominence above supraorbital arch. Frontal Eminence: second prominence above supraorbital arch. Superior Temporal Ridge: especially marked at forepart of lateral aspect, leading downward and forward to external angular process; gives attachment to temporal fascia. Superior Stephanion: where coronal suture crosses superior temporal ridge. Inferior Temporal Ridge: indicates upper boundary and attachment o c temporal muscle, the contraction of which muscle will aid in determining site of ridge. Inferior Stephanion: where coronal suture crosses inferior temporal ridge. Pterion: point in zygomatic fossa, from 3.8 to 5 cm. ( t+ to 2 inches) behind external angular process and same distance above zygoma, where parietal, temporal, frontal, and sphenoid bones meet. Sylvian Point: where sylvian fissure reaches the convexity of the hemi- sphere, at a point from 2.9 to 3.2 cm. (ij to i^ inches) directly behind external angular process. 53 8 OPERATIONS UPON THE HEAD. Parietal Eminence: most prominent postero-lateral eminence. Malar Bone: palpable throughout. Retro-orbital Tubercle : apophysis upon posterior border of upper part of frontal process of malar bone, a short distance below malo-frontal suture; the most important anterior lateral landmark. Zygomatic Arch: palpable throughout; its upper border may be taken as a practically horizontal measurement, in the upright position of the body. Auricular Point: center of external auditory meatus; most reliable middle lateral landmark. Preauricular Point: point on Reid's base-line (v. i.) in depression between tragus of the ear and condyle of inferior maxilla. Supra-auricular Point: point vertically above auricular point, at root of zygomatic process. Squamous Suture: summit of which is 4.4 cm. (if inches) above zygoma. Mastoid Process of Temporal: palpable throughout. Asterion: point behind ear where parietal, temporal, and occipital bones and lambdoid and squamous sutures meet; about 1.8 cm. (f inch) behind and 1.2 cm. (^ inch) above upper part of posterior border of mastoid process. Note: — For other landmarks of the cranio-cerebral region, see the methods of Chipault (page 546), Kroenlein (page 553), Reid (page 551), and Chiene (page 554) for localizing the brain areas, and also the data under the following division of the subject. CRANIO-CEREBRAL TOPOGRAPHY. Description. — Relation of areas and structures of brain to the cranial bones. While discrepancies are found in the statements of the highest authorities in this department of surgical work, and differences actually exist in different heads, the following may be considered the most generally accepted data, for the average head. Extent of Cerebral Hemispheres. — (1) Superior or mesial border; extends from mid-point of naso-frontal suture to a point averaging 1 cm., or y 7 ^ inch (extremes, 5 to 15 mm., or \ to f inch), above the external occipital protuberance, and 5 mm. (\ inch) to its left and 15 mm. (f inch) to its right (representing the width of the superior longitudinal sinus and attachment of the dural walls). It is separated from the opposite hemisphere by the superior longitudinal sinus above, which deviates slightly to right, and by falx cerebri below. (2) Inferior or lateral border; (a) Frontal Portion; — begins in median line, opposite floor of naso-frontal groove — arches upward and out- ward 8 mm. (f inch) above center of supraorbital margin of frontal bone — crosses temporal crest just above external angular process — thence descends slightly to a point in temporal fossa about 30 mm., or iy^g- inches (extremes, 29 to 32 mm., or iy 2 ^ to iy 4 ^ inches), directly behind external angular process, where it coincides with margin of temporal lobe at a point where the sylvian fissure reaches the convexity of the hemisphere (the sylvian point) — the frontal lobe in front and above and the temporal lobe behind and below forming a receding angle here. (More roughly outlined, the frontal portion lies just above the eyebrow in front, and just above the upper margin of the zygoma laterally.) (b) Temporo-occipital Portion; — -continuing the line of lower margin of frontal portion from the sylvian point, at receding angle formed by svlvian fissure, it curves slightly downward and forward from the lower margin of frontal lobe to a point 20 mm. (yf inch) above the zygoma, and 15 mm. (f inch) behind external angular process (which marks the CRANIOCEREBRAL TOPOGRAPHY. 539 anterior pole of the temporal lobe) — thence passes backward on level with upper border of posterior half of zygomatic arch — thence still backward at an average distance of 6 mm., or £ inch (extremes, 3 to 9 mm., or ^ to | inch), above the roof of meatus auditorius externus — continuing horizontally backward it crosses the supramastoid crest — and runs thence to a point 5 to 15 mm. (j to f inch) above the external occipital protuberance, 5 mm. (j inch) external to the protuberance on the left, and 18 mm. (f inch) external to it on the right. (More roughly outlined, the temporo-occipital portion co- incides with the upper margin of the zygoma laterally, and the superior curved line of the occipital posteriorly.) Extent of Cerebellum.— Occupies inferior cerebellar fossae and is in contact with cranial wall, extending upward to lower margin of transverse portion of lateral sinus above, and forward to posterior margin of sigmoid portion of lateral sinus in front. Great Longitudinal Fissure. — Straight median line from mid-point of naso-frontal suture to center of external occipital protuberance — with a slight tendency to the left, especially posteriorly. Great Transverse Fissure. — (Between cerebrum and cerebellum.) Represented, approximately, by a line between external occipital protuberance and center of external auditory meatus. Sylvian Fissure. — The parts of the sylvian fissure may be traced out by measurement, or by means of the sutures of the skull, (a) Location of parts of Sylvian Fissure by Measurement; Sylvian Point — found by carrying straight line from posterior margin of fronto-malar junction directly horizon- tally backward for 3.1 to 3.5 cm., or i\ to if inches (average, ^.^ cm., or i T 5 g inches), thence vertically upward for 6 to 12 mm., or J to \ inch (average 9 mm., or § inch), the termination of which latter line marks the sylvian point, where the anterior branches of the sylvian fissure are given off. Sylvian Line — found by carrying a straight line from the sylvian point backward and upward to a point from 1.2 to 1.8 cm. (^ to £ inch) below the most prominent part of the parietal eminence. Horizontal or Posterior Limb of Sylvian Fissure — that portion just mentioned (from sylvian point to lower part of parietal eminence) having a length of 7.5 to 10 cm. (3 to 4 inches). Ascending Limb of Sylvian Fissure — a line 3 cm. (i T 3 g- inches) long, drawn upward and forward from the sylvian point, at right angle to sylvian line. Anterior Limb of Sylvian Fissure — a line 2 cm. (yf inch) long, drawn horizontally forward from the sylvian point, (b) Location of Parts of Sylvian Fissure by means of Sutures of Skull; Point of Division of Sylvian Fissure — in the pterion, under or very near the spheno-parietal suture, near its posterior end. Horizontal or Posterior Limb of Sylvian Fissure — runs from the point of division backward and slightly upward, following the squamous suture at first, and then crossing the temporal portion of the parietal bone to the inferior temporal line, and thence ascending beneath the parietal eminence. Ascending Limb of Sylvian Fissure — runs from the point of division obliquely upward and forward, crossing the lower end of the coronal suture. Anterior Limb of Sylvian Fissure — runs from point of division forward in the direction of the spheno-parietal suture. The horizontal limb of the sylvian fissure is more oblique, and further above the squamous suture, up to the third or fourth year than subsequently. Rolandic Fissure. — The parts of the Rolandic Fissure may also be traced out bv measurement, or by means of the sutures and bony landmarks, in the exposed skull; (a) Location of position and direction of Rolandic Fissure by Measurement; Superior Rolandic Point— variously estimated at 540 OPERATIONS UPON THE HEAD. from 55 to 57 per cent, (average being between 55 and' 56 per cent., probably about 55.7 per cent.) of distance from mid-point of naso-frontal suture to external occipital protuberance. Quain, upon another basis, gives the point at 1 cm. (j\ inch) behind the center of the naso-inial line, and Poirier as 2 cm. ( T f inch) behind that center. Where the inion is indistinct, the superior ro- landic point may be considered as 18 cm., or 7^ inches, in large (and 17 cm., or6yi inches, in small) heads posterior to the nasion, in the median line. Direc- tion of Rolandic Line — forms an angle generally averaging about 70 degrees (extremes 64 degrees to 75 degrees) with the median line. (Formerly the angle was generally considered 67 ^ degrees. Different writers have given the wide variations covered in the above extremes.) The rolandic line coincides with the rolandic fissure more accurately in its upper part — the inferior genu of the rolandic fissure projecting slightly in front of the rolandic line below its cen- ter, corresponding to a point 5 to 15 mm. (j to f inch) above the lower tem- poral line. Inferior Rolandic Point — lies on the rolandic line generally 1 cm. (-j\ inch) above the sylvian line (v. s.). Length of Rolandic Fissure— gen- erally from 8.5 to 9.5 cm. (3! to 3! inches). (b) Location of Rolandic Fis- sure by Bony Landmarks; lies entirely under the parietal bone, the superior rolandic point being from 4 to 5 cm. (iyV to 2 inches) and the inferior rolandic point about 3 cm. (iy 3 g- inches) posterior to the coronal suture. The rolandic fissure is somewhat further forward and more obliquely placed in children under nine years. Parieto-occipital Fissure. — A line about 2 cm. ( T f- inch) long running transversely outward, at right angle to naso-inial line, from a point averaging about 6 mm., or \ inch (extremes, from lambda itself to a point 15 mm., or f inch), in front of lambda. Where the lambda is not distinct, its position lies from 6 to 7 cm. (2§ to 2f inches) above the external occipital protuberance, or 8 to 10 cm. (3J to 4 inches) behind the superior rolandic point. The above line represents the external portion of the fissure, the internal portion lying upon the mesial aspect of the hemisphere. (If the horizontal limb of the sylvian fissure be continued backward to the median line, its last 2 cm. — yf inch — would represent, approximately, the external portion of the parieto-occipito fissure.) In children this fissure lies somewhat further forward. Precentral Fissure. — Runs downward and forward about 15 mm. (f inch) anterior to and nearly parallel with the rolandic fissure. Its upper portion lies from 2 to 3 cm. ( T f to i T 3 ¥ inches) behind the upper part, and its lower portion from 1 to 2 cm. (f to T f inch) behind the lower part of the coronal suture. Its lower end terminates about 1 cm. (§ inch) above the sylvian fissure. Postcentral Fissure. — Runs downward and forward about 15 mm. (f inch) posterior to and nearly parallel with the rolandic fissure. Superior Frontal Fissure. — Line running forward, approximately parallel with the naso-inial line, from the precentral fissure, just internal to mid-distance between temporal crest and median line, to the supraorbital notch. Inferior Frontal Fissure. — Line running forward and slightly down- ward from the precentral fissure to just above the superior stephanion (inter- section of superior temporal ridge and coronal suture), and thence forward, nearly coinciding with the anterior portion of the temporal ridge. Intraparietal Fissure. — The ascending portion runs upward for about 1.8 cm. (f inch) nearly parallel with and about 1.5 cm. (f inch) posterior to the rolandic fissure. The longitudinal portion runs thence backward and CRANIO-CEREBRAL TOPOGRAPHY. 541 slightly inward just above the parietal eminence, being about 4.5 cm. (i|f inches) from the median line anteriorly, and about 3.5 cm. (if inches) poste- riorly, at a point opposite the lambda. Superior Temporo-sphenoidal (Parallel) Fissure. — General direction of this fissure is represented by a straight line passing from the retro-orbital tubercle to the lambda, which line coincides more accurately with the tem- poral part of the fissure. This fissure lies beneath the superior part of the squamous portion of the temporal, and posterior part of temporal portion of parietal, and thence turns upward across the temporal lines and passes under the upper division of the parietal bone. Placed somewhat higher in children. Ascending Frontal Convolution. — Lies beneath the anterior third of the parietal bone. Superior Frontal Convolution. — Its base lies under the anterior third of the parietal, and its main part corresponds to somewhat less than the inner half of the frontal region of the frontal bone. Middle Frontal Convolution, — Its base lies under the anterior third of the parietal; its main part corresponds to somewhat more than the outer half of the frontal region of the frontal bone, and its anterior portion lies under the frontal eminence. Inferior Frontal Convolution. — Its base lies under the anterior third of the parietal; the apex of its triangular part lies under the anterior inferior angle of the parietal; and its orbital part lies beneath the temporal division of the frontal and superoir end of great wing of sphenoid. Island of Reil. — Pole of the triangular island of Reil corresponds with the sylvian point. Posterior Angle corresponds with a point on the sylvian line 3.5 cm. (if inches) behind the sylvian point. Superior Boundary is indicated by an evenly curved line, with upward convexity, extending from the posterior angle to the upper extremity of the ascending limb of the sylvian fissure, and thence forward in the same curve 1.5 cm. (f inch) beyond a vertical line passing upward from the sylvian point. Postero-inferior Boun- dary extends from the posterior angle downward and forward to a point on the superior temporo-sphenoidal line directly below the sylvian point. Parietal Lobe. — Lies beneath the parietal bone, the parietal eminence overlying some part of the supramarginal convolution. Ascending Parietal Convolution. — Lies between the rolandic fissure and the ascending portion of the intraparietal fissure. Angular Gyrus. — At the intersection of Reid's posterior perpendicular line (v. i.) and the direct continuation of the sylvian line. Temporal Lobe. — Lies chiefly beneath the squamous part of the temporal and the posterior and inferior fourth of the parietal — its anterior end lying under the great wing of the sphenoid — its posterior part (inferior temporal convolution) lying beneath the occipital lobe. Occipital Lobe. — Lies in the cerebral portion of the occipital bone, and sometimes slightly beneath the adjoining parietal. Basal Ganglia. — Consist of the following; nucleus caudatus and nu- cleus lenticularis, forming the corpus striatum; claustra; amygdaloid nuclei. The optic thalami lie near the corpora striata, but belong to the thalamen- cephalon or interbrain. The above ganglia, except the amygdaloid nucleus, lie subjacent to the island of Reil — they extend slightly beyond the limits of the island — and are circumscribed by the curved line limiting the main part of the lateral ventricle (v. i.). The following important white fasciculi are closely related to the corpora striata; inner capsule; outer capsule: anterior commissure; taenia semicircularis. 542 OPERATIONS UPON THE HEAD. Lateral Ventricle. — Commencing at the anterior extremity of the Ante- rior Horn, i cm. (f inch) in front of the most anterior point of the outline of the island of Reil (v. s.), pass backward along the Body of the Lateral Ventricle in a curve following parallel with and i cm. (f inch) above the superior boundary of the island of Reil, to a point 2 cm. (|f inch) behind its posterior limit — thence the Descending Horn curves forward and downward to terminate 1 cm. (§ inch) below the level of the superior temporo-sphenoidal (parallel) fissure and slightly anterior to a line from the lower rolandic point to the preauricular point — while the Posterior Horn passes backward from this curve, a variable distance, toward the back part of the hemisphere, which is somewhat higher than the occipital pole. Another method of locating the lateral ventricle is to take a point 3.1 cm. (i| inches) above and the same distance behind the external auditory meatus (Keen). Ordinarily the lateral ventricle lies at a distance of 5.7 to 6.3 cm. (2^ to 2+ inches) from the surface. Naso-lambdoidal Line. — Begins at naso-frontal groove — passes directly backward 6 mm. (j inch) above the external auditory meatus to end 1 cm. (f inch) above the lambda (or, if that is not recognizable, about 7 cm., or 2§ inches, above the external occipital protuberance). It passes through the lower part of Broca's (inferior frontal) convolution — runs along the posterior limb of the sylvian fissure for 4 to 6 cm. (i T ! V to 2| inches) — touches the lower part of the supramarginal convolution — passes through the base of the angular gyrus — and ends in the parietooccipital fissure. Superior Longitudinal Sinus. — Is represented by two straight lines, both beginning together from the mid-point of the naso-frontal suture (foramen caecum) and slightly diverging as they pass posteriorly, one going to a point opposite the external occipital protuberance and 5 mm. (y\ inch) to its left, the other to a corresponding point 15 mm. (§ inch) to the right of the external occipital protuberance. This divergence represents the attachment of the laminae of the falx cerebri forming the sinus, which increases in width poste- riorly. Lateral Sinuses. — Transverse Portion forms a slight curve, with upward convexitv, from external occipital protuberance to back of ear, on level with upper border of external auditory meatus. The highest part of the sinus (opposite masto-parietal suture) lies from 1.5 to 2.5 cm. (f to 1 inch) above a straight line drawn from the external occipital protuberance to the center of the external auditory meatus and a little external to its center. Sigmoid Portion passes from back of ear, on level with upper border of external auditory mea- tus, in a sigmoidally curved direction (convexity forward) over the prominence of the mastoid process to its apex, lying generally from 10 to 12 mm., or y^ to \ inch (extremes, 2 to 12 mm., or nearly \ to \ inch), behind the posterioi wall of the external auditory meatus, and extending downward about 5 mm. (-£r inch) below the lower border of the external auditory meatus. Distance of sigmoid portion from outer surface of mastoid process is about 7 mm., or f inch (extremes, 1 to 15 mm., or T V to f- inch). Width of sigmoid portion is about 10 mm., or § inch (extremes, 5 to 15 mm., or T : V to f inch). (For other data concerning the Lateral Sinuses, see Surgical Anatomy of Brain [page 532], and Relations of Mastoid Antrum, [page 602].) Middle Meningeal Artery and Its Branches. — For course and rela- tions, see under Surgical Anatomy of the Brain (page 535), and under the Surgical Anatomy in connection with the ligation of those vessels (pages 47-49)- Facial Nerve. — Descends in fallopian canal through the mastoid pro- cess, lying between the sigmoid portion of the lateral sinus and the external LOCALIZATION OF BRAIN AREAS. 543 auditory meatus (very near the latter). For fuller description of its relations, see under Surgical Anatomy of the Mastoid region (pages 602 and 603). LOCALIZATION OF BRAIN AREAS. Description. — The determination of the situation of those areas of the Brain which are concerned with certain functions. These centers do not fra<*c \_... o$S\lv'iu.s >*^ EcfyuiLtn uA - r M 5^ 2 5 ? .it £ o • Fig. 40S. — Craniocerebral Topography: — Cortical areas of the right outer surface of the brain. (Modified from Dalton.) necessarily coincide with fixed convolutions — are not limited in extent by hard and fast lines — often overlap each other — and their position and dimen- sions are not, in all cases, invariably fixed, nor absolutely ascertained. Each functional center most probably has a wider general representation over the adjacent areas and a more limited special representation, whereby a small area may be removed without total paralysis of that part of the limb specially represented by that area. The following summary may be taken as repre- senting the present state of knowledge of the best authorities, and was kindly prepared by Dr. Roy M. Van Wart, who has done creditable work in this field. What slight discrepancies between the plates, Figs. 40S, 409, 410, and the text appear, the text, being later, should be followed, especially as to the non- saddling of the Rolandic fissure by the motor and sensory centers, which are, in fact, divided from each other by this fissure. " The localization of brain areas is the determination of those areas of the 544 OPERATIONS UPON THE HEAD. brain which are concerned with certain functions. These centers do not necessarily coincide with the convolutions. They are, however, as far as certain areas are concerned, fairly definitely determined. "Histological studies have shown that various areas are sharply marked off from the surrounding parts by some peculiarity in structure, and this has been shown to correspond in the motor area with the physiological delineation with the ampolar electrode. As this peculiarity in structure is found to correspond to certain areas whose function is more or less definitely known, it is probable that the future will enable us to mark off sharply the functions of the various parts. "Motor Areas. — The area controlling the movements of the various parts ~Rul cr-*? ffj( s*f -/"-SSUreof ^ oJan£ y T°«5 Fissure. F SUvius Fig. 409. -Cranio cerebral Topography: — Cortical areas of the left outer surface of the brain. (Modified from Dalton.) of the body is now definitely known, and is found to be separate and distinct from that of sensation. The posterior limitation is the fissure of Rolando, and anteriorly it is bounded by a line cutting off a small part of the horizontal frontal convolutions. The movements are distributed on the convolutions from below upward as follows; — Tongue, face, head, and neck; — Thumb, fingers, forearm, arm, and shoulder; — Trunk, thigh, leg, foot, and toes. Some of the movements of the lower extremity are situated on the median surface. "Sensory Areas. — These are limited anteriorly by the fissure of Rolando. The posterior boundary is not yet definitely known. They are arranged in the same order from below upward as those of motion. It is probable that LOCALIZATION OF BRAIN AREAS. 545 areas exist for the different forms of sensation, and some writers show areas for the stereognostic sense, cutaneous sensation, and muscular sensation. "Speech Areas. — Most of the older works give complicated diagrams showing the various speech centers and their connections, but recently con- siderable doubt has been thrown on their actual existence by the studies of Marie. The following, however, may be stated — centers for the sending out of speech and writing impulses exist, but probably in conjunction with those for other movements of the parts used in speaking and writing. "Auditory and Visual Word Memories. — What has just been said of the Speech Areas may also be said of these areas. "Area of Sight Sensation. — This area occupies a site in the cortex around the calcarine fissure. It may be divided into two parts — that for the reception of sight sensations, visuo-sensory — and that for their interpretation, visuo-psychic. Motor Fig. 410. -Craniocerebral Topography: — Areas of the median aspect of the brain. 1 Mod- ified from Dalton.) "Area of Sound Sensation. — The center for the reception of auditory sensations, audito-sensory, is in the first temporal convolution — that for their elaboration, visuo-psychic, in the second temporal convolution. "Areas of Smell and Taste Sensations. — These probably lie, respec- tively, in the cortex of the uncus hippocampi and the fusiform gyrus (Mills). "Higher Psychical Centers. — Large areas of the brain are without projection fibers, and it is probable that they have to do with the higher psychical functions. The anterior part of the frontal lobe is the most import- ant of these areas. "Crura Cerebri — Pons — Medulla. — Embrace the centers of cranial nerve nuclei and contain the motor and sensory fibers passing to and from the spinal cord. "Cerebellum. — Regulates the equilibrium of the body." 35 546 OPERATIONS UPON THE HEAD. CHIPAULT'S METHOD OF CRANIO-CEREBRAL LOCALIZATION. Description. — This method of cranio-cerebral localization is based upon the relations of the parts of the brain to the skull, as determined by the percentage measurements of the skull made in the metric system. It is, therefore, equally applicable to skulls of different sizes, shapes, and ages. Following Fixed Bony Landmarks of Measurement are taken: — Nasion — mid-point of naso-frontal suture (avoid confusing this with the glabella). Inion — external occipital protuberance. Retro-orbital Tubercle — the apophysis upon the posterior border of the upper part of the frontal process of the malar bone, a short distance below the fronto-malar suture. The most prominent part of this apophysis forms the lower limit of the three primary lines of Chipault's method (avoid confusing this with the external angular process of the frontal bone). (Fig. 411.) Following Percentage Points are Marked upon the Median Naso- inial Line (a line extending in the median line of the head, from nasion to inion) — which percentage points are to become the median or upper limits of lines to be subsequently drawn: — Precentral Point is marked at 45 per cent, of the distance from nasion to inion. Rolandic Point is marked at 55 per cent, of the distance from nasion to inion. Sylvian Point is marked at 70 per cent, of the distance from nasion to inion. Lambdoidal, or Superior Te-mporo-sphenoidal Point, is marked at 80 per cent, of the distance from nasion to inion. Lateral Sinus Point is marked at 95 per cent, of the distance from nasion to inion. (Fig. 412.) (Illustration — suppose distance from nasion to inion to be 30 centimeters — then t 4 q% of that distance, or the Precentral point, will be 13.5 cm. from the nasion; — -f$\, or the Rolandic point, 16.5 cm.; — T W, or the Sylvian point, 21 cm.; — j 8 ^, or the Superior Temporo-sphenoidal point, 24 cm.; — y%\, or the Lateral Sinus point, 28.5 cm. If measured in inches, and the naso- inial line measured 12 inches, t 4 q% of 12 inches, or the Precentral point, would lie 5.4 inches from the nasion, etc.) Three Primary Lines are Drawn. — Sylvian Line — from retro-orbital tubercle to sylvian point (70 per cent.) — its anterior portion marking the sylvian fissure. Superior Temporo-sphenoidal Line — from retro-orbital tubercle to lambdoidal or superior temporo-sphenoidal point (80 per cent.) — its anterior part marking the superior temporo-sphenoidal fissure. Lateral Sinus Line — from retro-orbital tubercle to lateral sinus point (95 per cent.) —its anterior part crossing the lower portion of the temporal lobe — its poste- rior portion marking the upper part of the transverse portion of the lateral sinus, the tentorium cerebelli, and the great transverse fissure of the brain. (Fig- 413O These three primary lines are now marked off into tenths of their lengths. (For instance, if the sylvian line measures 21 cm., this line is divided off into ten parts of 2.1 cm. each.) Two Secondary Lines are Drawn. — Precentral Line — from junction of second and third tenths of sylvian line, to precentral point (45 per cent.) — commencing at the bifurcation of the sylvian fissure, it at first follows the ascending limb of the sylvian fissure, and then corresponds in its two upper thirds to the precentral fissure. Rolandic Line — from junction of third and fourth tenths of sylvian line, to rolandic point (55 per cent.) — beginning at lower extremity of rolandic fissure and following its entire length. CHIPAULTS METHOD OF CRAXIO-CEREBRAL LOCALIZATION. 547 These two secondary lines are now divided and marked off into tenths. Thus, with the tenths marked on the three primary lines, sufficient data are furnished for all practical purposes of localization." Other Points and Lines. — Inferior Frontal Fissure— begins at junction of third and fourth tenths of precentral line— Anterior Branch of Middle H5% Fig.41 1.— Chipault's Method of Cranio-cerebral Localization— Scalp View :— A, Nasion ; B, Inion ; C, Retro-orbital tubercle ; 45^, or Precentral point ; 55^, or Rolandic point ; 70^, or Sylvian point; 80^, or Superior temporo-sphenoidal uoint ; 95^, or Lateral sinus point; D, Sylvian line; E, Superior temporo-sphenoidal line; F, Lateral sinus line; G, Precentral line; H Rolandic line ; I, Junction of second and third tenths of sylvian line; J, Junction of third and fourth tenths of sylvian line. Meningeal Artery — crosses the second tenths of the three primary lines. Lateral Ventricle — lies directly opposite the junction of the third and fourth tenths of the superior temporo-sphenoidal line. This point strikes the Body of the lateral ventricle at its posterior part. Hartley has determined that the cavity of the ventricle is reached at a distance from the surface of the brain equal to one-third of the transverse diameter of the brain itself opposite 54« OPERATIONS UPON THE HEAD. this point. (For example, take the full diameter of the skull and scalp with calipers, say 15 cm. — take thickness of skull and scalp of the side opened, say 1 cm. — double this for the opposite side — take result of this doubling, say 2 cm., from the total transverse diameter, which will give the diameter of the brain alone, say 13 cm. — take one-third of this, say 4.3 cm.- — and enter the brain to that depth upon a direct horizontal line.) To puncture the Descending Horn of the lateral ventricle, Hartley passes through the Fig. 412.— Chipault's Method oh Craniocerebral Localization — Skull View :— A, Nasion; B, Inion ; C, Retro-orbital tubercle ; 45;*, or Precentral point ; 554, or Rolandic point ; 70$, or Sylvian point; 80$, or Superior temporo-sphenoidal point; 95$, or Lateral sinus point; D, Sylvian line; E, Superior temporo-sphenoidal line ; F, Lateral sinus line; G, Precentral line; H, Rolandic line; I, Junction of second and third tenths of sylvian line ; J, Junction of third and fourth tenths of sylvian line ; K, Lateral sinus. middle temporo-sphenoidal convolution in a line directly above the external auditory meatus. To puncture the Posterior Horn of the lateral ventricle, he passes through the middle temporo-sphenoidal convolution in a line with the posterior border of the mastoid process. Summary. — Having determined the position of the chief fissures of the CHIPAULT'S METHOD OF CRANIOCEREBRAL LOCALIZATION. 549 brain in the above manner, and knowing the general relations of the convo- lutions, structures, and functional areas to these fissures, any desired area may be exposed. Preference is given to the method of Chipault over the several others in use, for while none are perfect, or absolutely simple, this method has proved itself quite accurate and fairly easy of application, and furnishes sufficient data from which to locate any desired area of cerebrum or cerebellum. %7> Fig.41,3 — Chipaui.t's Method of Cranio-cerebral Localization— Brain View :— A, Nasion ; B, Inion ; C, Retro-orbital tubercle ; 45:;, or Precentral point; 55$, or Rolandic point ; 7u.n1 Sylvian point ; hov. ur Superior temporo-sphenoidal point ; 95^, or Lateral sinus point ; L). Sylvian line, over- lying sylvian fissure ; E, Superior temporo-sphenoidal line, overlying superior temporo-sphenoidal fissure; F, Lateral sinus line; G, Precentral line, overlying precentral fissure; H, Rolandic line, overlying Rolandic fissure ; I, Junction of second and third tenths of sylvian line ; J, Junction of third and fourth tenths of sylvian line ; K, Lateral sinus ; L. Cerebellum. The manner of applying these (or any other) measurements is to shave the head and mark out the landmarks and the desired areas upon the scalp, by means of a solution of nitrate of silver or a dermographic pencil — then, with a sharp-pointed instrument of small circumference inserted through the scalp to the bone, a slight blow or two is given with a mallet just sufficiently 550 OPERATIONS UPON THE HEAD. to mark the bone — the soft parts are then turned back and the bone removed by the method elected, preferably some form of motor saw, with or without the aid of previous small trephine-openings outlining the area to be removed. Where a trephine-opening is used as the entire means of exposure, an instru- ment of sufficiently large diameter should be used to allow of the possibility of a smaller opening not fully covering the area sought. Of course, it is only necessary, in operating in life, to mark out upon the scalp the particular area desired, and then to mark, in the above manner, the corresponding site on the skull — for instance, if one sought a motor center lying along the rolandic fissure, only the sylvian and rolandic points and the sylvian and rolandic lines of the above system need be marked out on the scalp — and only the center of the motor area itself on the bone. For the technique of the operations whereby this method of localization may be applied, see the operations of craniotomy (page 558) and osteoplastic resection of the skull (page 565). THE USE OF BELL'S GEOMETRICAL CYRTOMETER FOR THE EASY APPLICATION OF CHIPAULT'S METHOD OF CRANIO-CEREBRAL LOCALIZATION. William H. Bell has worked out, geometrically, a device for use in connec- tion with Chipault's method, whereby is avoided the necessity of calculating each time the percentage distances from nasion to inion and dividing the pri- mary and secondary lines into tenths. His description of its application is here given. The device is based upon the maximum and minimum measurements between the bony landmarks concerned. "These are three in number: — First, The greatest distance from Nasion to Inion over the cranial vault along the median longitudinal line; — second, The shortest distance from Nasion to Inion over the cranial vault along the median longitudinal line; — and third, The shortest distance from a point dividing the third and fourth tenths on the Sylvian line to the 55 per cent, point on the above line from Nasion to Inion. (See Fig. 411.) Fig. 414. — The Geometrical Cyrtometer of Bell: — B C, Least distance from Nasion to Inion; A C, Greatest distance from Nasion to Inion; also greatest distance in tenths; A B, The shortest distance from a point dividing the third and fourth tenths on the Sylvian line to the 55 per cent, point on the line from the Nasion to Inion. (Modified from Bell.) " The accompanying diagram (Fig. 414) illustrates the idea and, indeed, is the cyrtometer itself. It is to be printed on some soft, tough paper and used in that way, or blue prints can be made from a tracing. Either can be sterilized in lots if desired. The edge A C (40.5 m., or 16 inches) represents the first dimension (v. s.) ; B C (30.5 m., or 12 inches) the second dimension; A B (12.5 cm., or 5 inches) the third dimension. The per cents., 45, 55, 70, 80, and Q5 are pointed off on the line A C, and, from these, lines are drawn across the diagram parallel with dimensions A B. The dimension A B is divided REID'S METHOD OF CRANIO-CEREBRAL LOCALIZATION. 551 into tenths and from each point a line is drawn across the diagram parallel to the dimension B C. " The employment of this simple paper triangular chart is easy, and the manner of applying it is as with any other system of surgical craniometry: by shaving the head and marking the craniometric points and desired areas upon the scalp by means of a solution of nitrate of silver, or a dermographic pencil, etc. " To find the desired per cent, distance, or distances, along the median longi- tudinal line, place the apex C on the inion and swing the base A B across the forehead until some point on this base corresponds to the nasion (e. g., a, Fig. 414) . Mark and fold, or cut off in a straight line from a to C, and replace along the longitudinal line from Nasion to Inion, when you immediately and automatically obtain the per cent, distances desired and can point them off on the scalp in the usual way. " If the paper has been folded it can be used for the other measurements. If it has been cut (and this seems the better plan) take a new diagram and proceed as follows: Place the apex A at the Retro-orbital Tubercle and swing the base B C across the cranium until some point (for example, b, Fig. 414) on this base corresponds with the per cent, mark, say, 70 per cent., obtained by the previous proceeding. Mark and fold, or cut off in a straight line, from b to a and replace, when you immediately and automatically divide the dis- tance into tenths, by which to locate the area desired. " These two lines involve the cranial landmarks and may be regarded as the guides in Chipault's method, and they also demonstrate the use of the Geomet- rical Cyrtometer. All other lines and areas are located by a similar proceed- ing." REID'S METHOD OF CRANIO-CEREBRAL LOCALIZATION. Description. — A method of determining the relations of the principal parts of the brain to the skull, by means of certain lines drawn upon the scalp between known landmarks. (See Fig. 415.) Fundamental Lines. — Base Line: — a horizontal line from the lowest part of the infraorbital border, through center of external auditory meatus, thence directly backward (Fig. 415, A B). Anterior Perpendicular Line: — from preauricular point (a depression upon the base-line, between tragus and condyle of jaw) to longitudinal fissure (E D). Posterior Perpendicular Line: — along posterior border of mastoid process, from base-line to longi- tudinal fissure (G F). Some of the structures are located in connection with these lines, and others are located upon other data. An average adult head is supposed. Longitudinal Fissure. — From mid-point of the naso-frontal suture to external occipital protuberance. Sylvian Fissure. — Extends from a point 3.1 cm. (i| inches) horizontally behind the external angular process to a point 1.8 cm. (f inch) below the most prominent part of the parietal eminence (Fig. 415, H J). Main part of the sylvian fissure is represented by the anterior 1.8 cm. (f inch) of the above line (HI). Horizontal Limb of the fissure is represented by the remainder of the line (I J). Ascending Limb of the fissure extends from the posterior end of the main fissure vertically upward for 2.5 cm. (1 inch) (IK). Bifurcation of the sylvian fissure, therefore, lies 5 cm. (2 inches) posteriorly 55- OPERATIONS UPON THE HEAD, to the external angular process, and about 6 mm. (| inch) above the level of the external angular process (I). Rolandic Fissure. — Represented by a diagonal line from upper end of posterior perpendicular line to junction of anterior perpendicular line with the sylvian fissure (L F). Sigmoid Portion of the Lateral Sinus. Point on the baseline 1.8 cm. (f inch) behind the center of the external auditory meatus (M). Transverse Portion of the Lateral Sinus. — Point 2.5 cm. (1 inch) behind the center of the external auditory meatus, and 6 mm. (| inch) above the base-line (N). Mastoid Antrum. — Intersection of line drawn along the superior wall Fig. 415. — Reid's Method of Cranio-cerebral Localization: — A B, Base-line; E, Preauricular point; E D, Anterior perpendicular line; G F, Posterior perpendicular line; H I, Main part of Sylvian fissure; I J, Horizontal limb of Sylvian fissure; I K, Ascending limb of Sylvian fissure; L F, Rolandic fissure; M, Sigmoid portion of lateral sinus; N, Transverse portion of lateral sinus; O, Mastoid antrum; P, Lateral ventricle; R, Main trunk of middle meningeal artery; S, Cerebral abscess; T, Cerebellar abscess. (For explanations, see text.) of the auditory meatus parallel with the basedine, with line drawn along the posterior wall of the auditory meatus perpendicular to the basedine (( >). Lateral Ventricle. — Lies 3.8 cm. (i| inches) directly above the center of the external auditory meatus (P). Anterior Branch of the Middle Meningeal Artery. —Encountered at a point 3.8 cm. (ij inches) behind external angular process, and 3.8 cm. (1^ inches) above zygomatic arch (Q). Posterior Branch of Middle Meningeal Artery. — Encountered at a point 4.4 cm. (if inches) behind external angular process, and 6 mm. (j inch) above zvgomatic arch (R). Usual Site of Cerebral Abscess. — In the temporo-sphenoidal lobe at KROENLEIN'S METHOD OF CRANIO-CEREBRAL LOCALIZATION. 553 a point 1.8 cm. (f inch) above the base-line, on a line drawn along the pos- terior wall of the auditory meatus perpendicular to the base-line (S). Usual Site of Cerebellar Abscess. — Opposite a point 3.8 cm. (i| inches) behind center of external auditory meatus, and 6 mm. (\ inch) below the base-line (T). KROENLEIN'S METHOD OF CRANIO-CEREBRAL LOCALIZATION. Kroenlein's construction is formed by two parallel horizontal, two parallel vertical, and two oblique lines. (A) Horizontal Lines; — (1) The Inferior, or fundamental line, passes through the inferior border of the orbit and the superior border of the auditory Fig. 416. — Kroenlein's Method of Craniocerebral Localization: — A, The German, or lower, horizontal line; B, Superior horizontal; C, Anterior vertical; D, Middle vertical; E, Posterior vertical; F, Rolandic line and fissure; L, Lower end of Rolandic fissure; G, Sylvian line; I, O, Sylvian fissure; H, I, J, Main trunk and anterior and posterior branches of middle meningeal artery; H, I, J, K, Square within which von Bergmann recommends opening the skull for otitic abscess in the temporal lobe. meatus (Fig. 416, A). (2) The Superior Horizontal, parallel with the pre- ceding, passes through the upper border of the orbit (Fig. 416, B). (B) Vertical Lines; — (1) The Anterior Vertical, perpendicular to the Inferior Horizontal, passes through the middle of the zygoma (Fig. 416, C). (2) The Middle Vertical, perpendicular to the Inferior Horizontal, passes through the temporo-maxillary joint (Fig. 416, D). (3) The Posterior Ver- tical, perpendicular to the Inferior Horizontal, passes through the most poste- rior border of the mastoid process (Fig. 416, E). 554 OPERATIONS UPON THE HEAD. E (C) Oblique Lines; — (i) The Rolandic Line passes from the point of intersection of the Superior Horizontal and Anterior Vertical, to the point where the Posterior Vertical crosses the sagittal suture (Fig. 416, I, F). The inferior extremity of the Rolandic Fissure is found at the point where the Rolandic Line crosses the Middle Vertical (Fig. 416, L). (2) The Sylvian Line is found in the following way: — Bisect the angle formed by the inter- section of the Rolandic Line with the Superior Horizontal (Fig. 416, I, G) — the Sylvian fissure will be represented by that portion of the bisector which extends from this intersection to the Posterior Vertical (Fig. 416, I, O). The main trunk and the anterior and posterior branches of the middle meningeal artery are to be sought, respectively, at the points H, I, and J. Von Bergmann recommends exploring for otitic abscess of the temporal lobe within the square M, J, N, K. CHIENE'S METHOD OF DETERMINING THE ROLANDIC FISSURE. Take a piece of paper about three inches square — crease it diagonally from A to D, so that A B D coincides with A E D. A E D will then represent an angle of 45 degrees. Then, after open- ing out the square, crease A BD along A C, so that A B C coincides with A C D, and allow the last folding to re- main creased. A C D (half of an angle of 45 degrees) will represent 22 \ degrees. There- fore E A C will be equal to an angle of 67^ degrees. Apply figure A EDC to the head so that A E falls upon the median line, with A 1.2 cm. (h inch) posterior to the mid- point of the line from nasion to inion, with E forward — when the line A C will repre- sent an angle of 67J degrees with the median line, and, therefore, approximately, the rolandic fissure. (See Fig. 4I7-) As the angle, however, which the rolandic fissure makes with the median line is now generally regarded as somewhat greater than 6jh degrees (see Fissure of Rolando, Cranio-cerebral Topography, page 539)", a somewhat greater allowance, say about 70 degrees, should be made. [ D Fig.417.— Chiene's Method of Determining the Rolandic Fissure:— A B D E, a square; A E D (one- half of A B D E, creased diagonally), an angle of 45 de- grees : A B C (one-half of A B D), an angle of 22^ degrees. Therefore E A C represents an angle of 67^ degrees. GENERAL SURGICAL CONSIDERATIONS IN CRANIO-CEREBRAL OPERATIONS. Relations of Cranial Contents to Cranial Bones.— It has been noted that irregularities of relationships do sometimes occur, and that discrepancies sometimes exist in the statements of the different methods of localizing, as SURGICAL CONSIDERATIONS IN CRANTO-CEREBRAL OPERATIONS. 555 given by different men of extended experience— but these irregularities and discrepancies are generally so slight that the structures or areas sought are readily accessible through the data given— and if not found directly in the center of the site exposed by operation, are usually within reach of the opening made. As a rule, apparent discrepancies are generally the result of an error in applying the special method of localizing. Fig. 418. — Rubber Tourniquet for Control of Hemorrhage from the Scalp in Opera- ting ABOUT THE HEAD. Preparation. — Head shaved. Ears cleansed and packed with sterile cotton. Position. — Patient supine, head elevated upon a firm support, at end of table, and turned so as to give freest access to site of operation. Surgeon on side of operation, or directly behind patient's head. Assistant opposite surgeon, or at his side. Fig. 419. — Doyen's Saw: — The guard set at 10 mm. (i in.). Control of Hemorrhage. — Hemorrhage from the scalp is generally con- trolled by clamp-forceps, applied immediately upon the completion of the incision, followed by ligation with gut of the clamped vessels. Where ex- tensive bleeding from the scalp is anticipated, especially in removing growths of that structure, a circular constrictor around the lower part of the skull (passing just above the nose and ears and just below the external occipital protuberance) may sometimes be advantageously used — such as the narrow 556 OPERATIONS UPON THE HEAD. flat band of the Esmarch set, or a rubber tube which flattens as it is applied (Fig. 418). To aid in its effectiveness, small compresses may be first placed over the temporal, posterior auricular, and occipital arteries, upon one or, preferably, both sides, and held in place by rubber plaster — and the con- strictor applied over these. Intracranial hemorrhage (from middle meningeal arteries, venous sinuses, and the intracerebral vessels) will be specially men- tioned among the operations upon the cerebral contents. Figs. 420 and 421. -A, MacEwen's Trephining-brace, with Various Sizes of Conical Trephines; B, An Interchangeable Trephine. Manner of Making the Cranial Section. — The use of a saw (motor or hand, including the trephine, which is practically a circular saw) is prefer- able for all forms of cranial section. MacEwen's trephine-brace is a valuable modification of the trephine (Figs. 420, 421). In this category the chain and Gigli saws are also included. Next to the saw, the bone-cutting forceps are to be chosen. And last to be recommended are the various forms of chisels, used with mallets. The only field for these last-mentioned instruments CRANIOTOMY IN GENERAL. 557 (owing to the concussion caused) is where a moderate blow or two will accom- plish the object. Doyen's hand-saw is an excellent instrument (Fig. 419) . Thickness of Skull. — Average thickness is about 5 mm. (A inch). In early life and in oid age the skull is thinnest, and at these ages the diploe is absent from the squamous bone, the parietal in the neighborhood of the squamous, and in the fossae of the occipital. Thinnest parts of the cranial bones— squamous part of temporal; inferior occipital fossae; over venous sinuses; over frontal sinuses; over grooves for meningeal vessels. Thickest parts of cranial bones — occipital protuberance of occipital; mastiod portion of temporal; lower part of frontal (except over frontal sinuses). Use of Electrode in Corroborating Motor Centers. — First try to get reaction through dura, without opening this membrane. In applying to brain itself, guard against burning by too strong a current. Where part of dura is permanently removed, gold-foil, or some similar substance may be advantageously used to prevent cortical adhesions. Where much brain tissue is removed, as in operations for tumors, etc., temporary packing should be used, to equalize brain pressure. Cranio-cerebral Operations in Two Stages. — Some surgeons open the cranium, down to the dura, at the first operation — and open the dura and complete the operation several days later — upon the ground of less shi ck, less hemorrhage, and a better protection of surrounding parts by adhesions. The majority of operators, however, complete the operation at one sitting, unless specially contraindicated. INSTRUMENTS USED IN CRANIO-CEREBRAL OPERATIONS. Scalpels, light and heavy; dissecting forceps; toothed forceps; fine forceps for holding dura, various shapes; artery-clamp forceps; sinus forceps; scissors, sharp and blunt, curved, straight and angular; trephines (of Gait pattern, or with guard), various sizes; trephine brushes; saws, motor and hand; Doyen's saw; chain saw; Gigli saw and carrier; bone-cutting forceps, various sizes and shapes; bone-holding forceps, various; rongeur forceps; periosteal elevator; bone elevator; gouges; curettes; retractors; spatulae; dural separator; grooved director; probe, with one flat end, to detect depth of trephine cut; tenacula; chisels, various sizes and shapes; mallets; aneurism-needles, various; brad awl; Fluhrer's probe; metal meter measure, in millimeters and centimeters; electrode for diagnosis; measurer of skull-thickness; surgeon's wax for plugging bony canals of vessels; needles, various, especially fine curved; needle-holders; sutures and ligatures, of silk, plain and chromic gut, and silkworm-gut; drains; gauze; rubber-band tourniquet; gold foil; rubber tissue. CRANIOTOMY IN GENERAL. Description. — Section of cranial bones. Operations upon the cranio- cerebral region resolve themselves, as far as the operation upon the cranium is concerned, into the making of an opening in the bony vault for the pur- pose of reaching the object itself of the special operation — and these openings are either simple trephinings, irregular cranial sections, or some form of osteoplastic resection. The operation of cutting through the bones of the skull is, after shaving the head, preceded by either the turning back of a flap composed of the soft tissues of the scalp, or the flap turned back consists of combined soft parts and bone undetached from each other. The flap, in 558 OPERATIONS UPON THE HEAD. either case, is so planned as to have its pedicle below, that the arteries supplying its nutriment may not be severed. At the end of the operation the flap is dropped back into place and sutured. One or the other of these is the common method of approach, no matter what the subsequent steps may be. When the portion of bone is not returned, the operation becomes, strictly speaking, a partial craniectomy. Varieties. — (I) Circular Craniotomv, or Trephining; generally per- formed with the conical (Gait's) trephine. The diameter of the opening thus made may be from 1.2 to 6.3 cm. (| to 2+ inches). Generally resorted to where a more limited opening will suffice. (2) Linear Craniotomy; division of cranial bones in straight lines — preferably by means of a motor saw, gener- ally preceded by a small trephine-opening through which to begin the section. Generally used as a simple section in the course of some operation. (3) Irregular Craniotomy; openings of irregular outline and varying size, such as may be unexpectedly indicated in the course of some operation. For example, original openings, when found inadequate, may be increased to the desired extent and form by the further application of trephine, saw, chisel, or bone-cutting forceps. (4) Osteoplastic Resection; a form of irregular craniotomy in which an area of scalp and cranium are cut through throughout the greater portion of their extent, but not separated from each other — and are then temporarily turned back, partly by breaking, partly by bending the unsevered portion — and subsequently replaced. Generally resorted to where the largest openings are required. TREPHINING, OR CIRCULAR CRANIOTOMY. Description. — The division of the cranial bones by means of a trephine, preferably of the conical or Gait tvpe (Fig. 423) — preceded by the temporary turning back of a flap composed of the soft parts. Indications: intracranial hemorrhage; abscess; fracture; foreign body; evacuation of cerebrospinal fluid through the lateral ventricle; as a preliminary step to osteoplastic resec- tion and to linear craniectomy; epilepsy; bullet and other wounds; small tumors; drainage of frontal sinus; drainage of mastoid antrum and cells; thrombosis of venous sinuses. Preparation and Position. — See General Surgical Considerations in Cranio-cerebral Operations. Landmarks. — Determined by bony landmarks of skull, or calculated by some method of cranio-cerebral localization, according to special operation. Control of Hemorrhage. — Ordinarily the hemorrhage is controlled by clamping the arteries in the margin of wound as cut. Excess of bleeding can be temporarily controlled, until arteries are clamped, by digital com- pression of temporal, occipital, or posterior auricular vessels against the skull. Where much bleeding is anticipated, the arteries may be compressed against the skull by circular constriction, as explained under General Surgical Considerations in Cranio-cerebral Operations (page 555). See also under Comment at end of this operation, and under Operations for Intracranial Hemorrhage (page 586). Incision. — An incision is made outlining an oval or U-shaped flap, with its convexity toward the crown of the head and its pedicle toward the base, its sides corresponding with the general direction of the vessels and nerves, thus providing for free ingress of arteries into the flap. Where possible, so place the flap as to avoid the main arteries. Size of flap should be consider- ably greater (at least 1.2 cm., or \ inch, all around) than the disc of bone TREPHINING, OR CIRCULAR CRANIOTOMY 559 to be removed, so that the cicatrix of the soft parts should not overlie the margin of the bone-opening. The center of the soft flap should about corre- spond with the center of the bone-disc to be removed. (The oval-flap incision is distinctly superior to the crucial or other form of incision.) (Fig. 422.) Operation. — (1) The original incision passes directly through skin, fascia, muscle (or aponeurosis), and periosteum to the bone throughout. Clamp arteries as cut, followed by ligation of main vessels with gut and removal of clamp forceps, so as to avoid encumbering the site of operation with instru- ments. (2) The periosteum, together with the overlying parts adherent to 422. — Trephining, or Circular Craniotomy: — I. of soft parts. -Subperiosteal elevation of the flap it, is then detached from the bone, en masse, with periosteal elevator (its adherence being firmest along the suture lines), and the entire flap turned down (Fig. 422) — and either held out of the way by a metallic or thread "retractor, or stitched to the neighboring soft parts. (3) When all bleeding has been controlled, apply trephine to desired site, with its pin slightly pro- jecting, withdrawing pin as soon as teeth of instrument have cut a groove in the bone. By repeated right to left pronations and supinations of wrist, con- tinue the half-circular movements of the trephine until the section is made through the bone, to but not into the dura (Fig. 423). The progress of the trephine is best determined at intervals by withdrawing the instrument and 560 OPERATIONS UPON THE HEAD. ascertaining the depth of the groove by the tip of the flat end of the ordinary probe, which readily detects the yielding dura. Additional pressure should be made upon that aspect of the incision which is thickest or is least cut, while the trephine is tilted away from the part completely divided. If the teeth of the trephine become blocked with bone-dust, remove such dust with trephine- brush or gauze. Pressure upon the instrument should decrease as the brain is approached. At first, greater resistance in going through the outer table of the skull is offered — then less resistance as the instrument passes through the diploe, and the bone-dust of the diploetic region is usually more blood- Fig. 423. — Trephining: — II. — Application of the Gait conical trephine to the skul stained — then finally greater resistance is experienced again in passing through the inner table. When section of bone has been almost or quite completed, the button of bone may generally be lifted out by means of an elevator (Fig. 424) or in the grasp of special curved, thin-bladed trephine-forceps. (4) If more space be required than afforded by the removal of the button, it may be gotten by biting out pieces of bone from the circumference of the opening by means of suitably curved rongeur forceps — or by making an additional con- tiguous trephine-opening of the same or smaller size, followed by biting out of TREPHINING, OR CIRCULAR CRANIOTOMY. 56l the intervening bridge-work of bone. (5) The dura mater is now exposed, and should be opened by marking out, on a very small scale, a flap very similar to the scalp-flap — its pedicle should be placed so as to best preserve its blood- supply (without reference to coinciding with the pedicle of the scalp-flap)— its convexity should lie in the opposite direction and be everywhere sufficiently far from the edge of the bone (at least 6 mm., or \ inch) to enable the cut margins of dura to be sutured at the end of the operation (Fig. 425, D). If arteries of fair size cross the dura, they should be ligated, where possible, prior to incising the dura, by passing a small, fully curved needle, armed with fine Fig. 424. — Trephining:— III. — Levering out the excised button of bone. gut, beneath them, including the dura. Arteries should be tied along the line which will form the convexity of the flap, rather than where they enter its pedicle. If not possible to tie them in advance, they should be caught as soon as cut and tied or twisted. The dura should be carefully incised with a light touch of the point of a fine, sharp knife, or cut with fine curved scissors, aided by grasping the small dural flap with delicate forceps as soon as a margin of it is free, and taking care not to wound the surface of the brain or the vessels coursing over it. (6) The special object of the operation, whatever it may be, is now carried out. (7) Having accomplished the particular object ot the operation, the dural flap is dropped into place and sutured with two or three 36 562 OPERATIONS UPON THE HEAD. or more, fine gut sutures, by means of a small, fully curved needle held by needle-forceps, while the dura is steadied by fine forceps (Fig. 425, E). (8) The opening in the bone may now be treated in one of several ways: (a) Left without replacement of any bone-tissue, which is especially done in the making of small trephine-openings; — (b) The button of bone may be replaced intact upon the dura, and the soft flap of periosteum and other tissues brought over the button — a method which may be pursued in dealing with buttons of larger size; — (c) The button may be divided into parts by fragmentation and sprinkled over the dura, where they form the nucleus of new bone growth ; — Fig.425.— Trephining, or Circular Craniotomy : — A, Circle left by removed disc of bone ; B, Incised dura mater; C, Surface of brain; D, Dural flap, with meningeal vessels, turned back ; E, Gut-sutures through margins of incised dura and dural flap ; F, Scalp-flap, with branches of occipital vessels, turned down. (d) A celluloid, metallic, or gutta-percha plate may be placed in the opening. In trephinings of small diameter the button is not generally replaced. In large openings some surgeons do, and some do not, replace the button, whole or fragmented, or some artificial covering. Where the button, either intact or fragmented, is used, it is dropped into warm normal salt solution as soon as removed. (9) The flap of scalp tissues is now brought back into its original position — the edges of the periosteum are sutured with catgut — and the edges of the overlying soft parts are sutured interruptedly with silkworm-gut, silk, TREPHINING, OR CIRCULAR CRANIOTOMY. 563 Fig. 426. — deVilbiss' Cranial Bone-gouging Forceps: — The biting-blade is shown in detail. Also known as Dalgrene's bone forceps. or catgut, passing through all the soft tissues down to the periosteum. (10) No drainage is ordinarily used unless specially indicated — and, if indicated, ■ i^gflHH" 1 ""■■if Fig. 427. — Doyen's Cranial Chisel. a few strands of catgut, horsehair, silk, or gauze suffice. A full dressing is applied. p Fig. 428.— Osteoplastic Repair of a Trephine or other Opening:— I.— A, Flap raised in exposing site for trephining; B, Flap to be raised, including a portion of bone (the outer tablet of the skull) and to be shifted to cover the trephine-opening. Comment.— Bleeding from the diploe may be stopped by compressing a small part of the bone upon the vessel with bone-forceps, or by plugging 564 OPERATIONS UPON THE HEAD. with catgut or surgeon's wax. Bleeding from the dura may be checked by fine catgut ligature. For bleeding from venous sinuses, see Ligation of Longi- tudinal and Lateral Sinuses (page 586). It is probably always best to open the dura in all cases of trephining. If more room be required than is furnished by the trephine-opening, additional bone may be bitten away by some special instrument, such as de Vilbiss' bone-gouging forceps (Fig. 426), or less desirably may be chiselled away by such an instrument as Doyen's cranial chisel (Fig. 427), using in either case the margin of the trephine-opening as a starting point. Though not frequently resorted to, or indicated, it may be possible to make an osteoplastic closure of a trephine opening. In order to accomplish this, Fig. 429. — Osteoplastic Repair of a Trephine or other Opening: — II. — A, Flap raised in exposing site for trephining and about to be shifted to cover site of Flap B, and the shallow bony opening left by removing the outer tablet of the skull under and along with Flap B; B, Hap, including attached bone-graft, shifted so as to bring the autoplastic bone-graft over the trephine or other opening. an adjacent flap may be raised, corresponding somewhat with the flap raised for the original exposure, but with its base lying in the opposite direction. In the act of raising this secondary flap a portion of the outer layer of the skull is chiselled off, retaining its connection with the secondary flap and so planned as to approximately fit the defect which it is intended to cover. Each flap is then so shifted as to lie in the position formerly occupied by its neighbor — the bone-bearing flap covering the exposed brain, and the boneless flap covering the site furnishing the bone-flap. These steps are shown in Figs. 428 and 429. OSTEOPLASTIC RESECTION OF SKULL. 565 OSTEOPLASTIC RESECTION OF THE SKULL. Description. — Temporary partial displacement of a section of the skull, together with its overlying soft parts unseparated — accomplished by partly bending, partly breaking backward, the base of the bony section from the dura, upon a hinge, as it were, of the soft parts, without complete severance Fig. 430— Osteoplastic Resection of thk Skill:— A. Cutaiieo-musculo-osseous flap tempo- rarily turned back ; the component parts adherent, and with scalp vessels cut along the margin ; B, B. B, B, Four trephine-openings made preceding the sawing of the bon~ ; C, Line along which the bone was cracked back; D, Incised dura, with divided vessels ligated ; E, Dural flap turned back; F, Gut- sutures through margins of incised dura and dural flap ; G, Periosteum retracted from line of saw- cut; H, Margin of skull left by temporary removal of osteoplastic flap ; I, Surface of brain. of the vascular supply — followed by the replacement of the flap of bony and soft parts into apposition. (See Fig. 430.) (The replacement of a trephined button of bone is, strictly, an instance of osteoplastic resection with temporary complete displacement of the excised piece of bone.) Indications. -For exploration; tumors; intracranial abscess; intracranial 5 66 OPERATIONS UPON THE HEAD, hemorrhage; exposure of Gasserian ganglion; wounds. In general, where the freest access to brain is required. Fig. 431. — Osteoplastic Exposure of the Brain: — A horseshoe flap has been incised to the bone. Burr-openings are being made by a Doyen hand-drill, to which a fraise (burr) i-. attached. The commencement of an opening, made by the perforator, is also shown. Preparation and Position. — See under General Surgical Considerations in Cranio-cerebral Operations (page 554) • Figs. 432-436. — Doyen's Brace, with several sizes of Burr-drills (Fraises) and a Perforator. Landmarks. — Same as for trephining (q. v.). Control of Hemorrhage from Scalp. — Hemorrhages ordinarily con- trolled as in trephining (q. v.). Where extensive hemorrhage is anticipated OSTEOPLASTIC RESECTION OF SKULL. 567 the vessels may be controlled by circular constriction, as explained under General Surgical Considerations in Cranio-cerebral Operations. Form of Cranial Opening.— (1) The best and general form is that of a Fig. 437. — Perforator: — A, Fraise or burr; B, in section of the skull. horseshoe, with its broader convexity upward and its more contracted base downward (Fig. 430) — or an i-'-shaped flap, the horizontal cuts at base (which may or may not be made) serving as liberating incisions. (2) A square, or a Fig. 438. — Osteoplastic Exposure of the Braix: — Application of the mensurator through a cranial drill-opening, in order to ascertain the thickness of the skull at the different openings, as a guide to the setting of the guard in the Doyen or other form of saw. rectangular piece, longer than broad, may be used — though the process oi bending backward is always aided if the base be somewhat narrower thai* the free portion (Fig. 468). (3) A second horseshoe, or square of bone, may 5 68 OPERATIONS UPON THE HEAD. Fig. 439. — Showing the method of application of the mensurator, between dura and skull, demonstrating, at this particular site, a skull 5 mm. ( T 3 B inch) thick. be turned back, if the original flap do not furnish sufficient room — the second being either turned back in an opposite direction from the first but in the same line, or from one side of the original opening (Fig. 469) . Fig. 440.— Osteoplastic Exposure of the Brain:— Doyen hand-saw, set to cut, say, through 7 mm. ($ inch) thickness of skull, in the act of making a bevelled bone-section between two drill-openings — bevelling at the expense of the inner surface. Incision of Scalp. — The form of scalp incision will be regulated by the previously determined form of bone section. Having decided this, the incision OSTEOPLASTIC RESECTION OF SKILL. 5 6 9 through the soft parts should conform, in general outline, with the bone section to be made, but should extend at least 1.2 cm. {h inch) beyond the line of bone section, so that the cicatrix of soft parts will not fall directly over the line of bony union or repair. The incision should be so placed, where possible, Fig. 441. — Osteoplastic Exposure of the Brain: — The starting outward (by means of an osteotome carefully introduced down to the dura) of the composite flap — the bone of which is to be snapped back and broken at its base on a transverse line with the two lowermost drill- holes. as to give free ingress of the neighboring arteries into its substance, especially the chief artery of the region. The removal of an area of bone greater than 7.5 cm. (3 inches) square is rarely called for — and this would require a skin- flap at least 10 cm. (4 inches) broad. Fig. 442. — Marion's Gigli-saw Conductor. Operation. — (1) The incision passes everywhere through skin, fascia, muscle, aponeurosis, and periosteum directly to the bone (Fig. 431). Or the incision may pass down to the periosteum — these allowed to retract, and periosteum cut on line of retracted soft parts, midway between the line of the skin incision and the line of the bone incision, so that periosteal and skin cica- 57° OPERATIONS UPON THE HEAD. trices do not fall together, nor periosteal and bony cicatrices coincide. (2) A rim of periosteum, without separating the overlying soft parts, is carefully detached to the extent of about 1.2 cm. (^ inch) around the horseshoe flap, separating it chiefly toward center of flap, and but slightly upon the outer edge of the incision. (3) Having exposed the entire area for the bone section, the bone is divided about 6 mm. (| inch) inside of the division of the periosteum in one of several ways: — (a) By means of Doyen's Hand-drill and Hand-saw; — Doyen's special brace, with perforators and burr-drills, is used (Figs. 432- 436) . The beginning of the opening is made by means of the perforator (Fig. 437, A), which cuts into the bone in such fashion as to enable the burr to keep its hold and not slip over the convex surface of the skull. The burr is then Fig. 443. — Osteoplastic Exposure of the Brain: — Gigli saw being carried beneath the skull, between the burr-openings, by means of the Marion conductor. applied and cuts its way through the entire thickness of the skull down to the dura mater — its form being such as to make it impossible to crush into the brain, except through carelessness — and its cutting surface so modelled as to revolve upon the dura without cutting it, unless driven too far through the skull (Fig. 437, B). During the use of the burr the instrument should be removed and the depth of the opening sounded. The position of the brace, during these manoeuvres, is shown in Fig. 431. Having made these openings at sufficiently close intervals in the outline of the intended bone-flap, the thick- ness of the skull is ascertained by means of the mensurator (Figs. 438 and 439). These soundings (made in millimeters) through any two contiguous openings will usually give the thickness of the skull for that special interval with sufficient accuracy (barring such accidental occurrence as the presence OSTEOPLASTIC RESECTION OF SKULL. 571 of a depression in the skull for a Pacchionian body). Having set the guard of the Doyen saw (Fig. 419) at the number of millimeters indicated by the mensurator, the skull is cut through between each pair of drill-openings — ■ changing the guard to correspond with the thickness of the skull in each region. The saw sections are always made on the bevel — in such a manner as to cut at the expense of the inner surface of the bone-flap — so that when it is replaced the flap of bone will rest upon a ledge of bone furnished by the margin of the opening and thus not be depressed upon the brain (Fig. 440). It is better to saw nearly through rather than .entirely through the skull — leaving the limited bony attachments which may still exist to be broken by the slight, light tap of a wooden mallet upon an osteotome (not a chisel) (Fig. 441), Fig. 444. — Osteoplastic Exposure of the Brain: — Gigli saw making a bevelled section between two drill-openings. The bevelling is made at the expense of the inner surface of the bone-flap, so that, when replaced, the bone-flap will rest upon the skull and not be pressed against the brain. preparatory to breaking back (hinging back) the bone-flap, (b) By means of a Gigli saw conducted between burr-openings or small trephine openings, between skull and dura ; — The burr openings may be made as in the preceding technic, by the Doyen hand-drill — or small trephine openings may be made along the line of the intended flap. A pliable dural separator is then passed from hole to hole, detaching and depressing the dura from the skull. A Gigli saw is now conducted beneath the bone by a special carrier (such as Marion's Gigli-saw conductor (Fig. 442) between two contiguous holes (Fig. 443) and the bone divided — and this repeated until the section is completed — the saw bevelling the bone as described in the last method (Fig. 444). (c) By means of Doyen's Flectric-Motor Drills and Saws; — This instrument is 572 OPERATIONS UPON THE HEAD. driven by electric power and is a combination of drill and saw (Figs. 445- 447). The drill-* tpenings in the line of the flap are made in the same manner as are the drill- or burr-openings made by Doyen's hand-drill and saw (Fig. 448) . As soon as the burr-openings have been made and their depth measured, an appropriate saw, with its proper guard, is chosen (Figs. 449-452 — a guard which will enable the saw to cut nearly through (as previously determined by the mensurator), but not entirely through, the skull — leaving a thin portion of the inner plate to be divided by a stroke or two of mallet against osteotome. The section between burr-holes is then made in the same general way as by the hand saw — and bevelled in the same fashion. Another form of the Doyen Electric-Motor Saw is provided with a dural guard and separator, which D Figs. 445-447. — Doyen's Electric-motor Drill and Saw: — A, Metallic cylinder for reception of special instrument; B, Rubber tube enclosing metallic core connected with motor; C, C, C, Handle, in various positions, to accommodate application of instrument to different aspects of skull; D, Fraise; E, Saw, with guard-disc limiting depth of section. (Modified from Marion.) travels between skull and bone and ahead of the saw (Fig. 453) — and is applied as shown in Fig. 454. (d) By means of Hartley's Electric Motor; — The source of electric power is, in this case, contained within the instrument itself — consisting of a motor furnishing about one-eighth horsepower — yielding 2100 revolutions per minute — the entire instrument weighing 8J pounds. The outer casing is sterilized before the motor is placed within it (Fig. 455). The cutting instruments used with this motor are shown in Figs. 456-459, — the saws being of the same general type as the Doyen saws (Figs. 449-452). (e) By means of Hartley's Compressed-air Motor; — This instrument is pictured in Fig. 460 — the same cutting instruments being adjustable to both it and the Electric Motor, (f) By means of Sudeck's Fraise; — The fraise is shown in Fig. 461. The instrument is attached to some form of motor — OSTEOPLASTIC RESECTION OF SKULL, 573 Fig. 44S. — Osteoplastic Exposure of the Braix: — Same as preceding figure — except Doyen's electric motor drill, with fraise attachment, is here shown. and used as pictured in Fig. 462. (4) When the bone has been divided throughout down to the base of the bone-flap, provision must be made for the 'A Figs. 449-452. — A, A, Doyen's circular saws of various sizes, adjustable to the common handle of his motor saw. B, B, Doyen's safety-discs of various sizes, adjustable to various sizes of saws in order to limit the depth of their cutting-edge. (The saws and discs are shown in groups and separately.) bending and breaking back of the bone at the site which will form the hinge of the osteoplastic flap — this hinging of the flap may be accomplished in one 574 OPERATIONS UPON THE HEAD. Fig. 453. — Another form of Doyen saw, driven by electric motor — with attached guard and dural separator passing between skull and dura. of several ways; — (a) When all is in readiness, and without having previously partly divided the bridge of bone at the base of the flap, a stout steel elevator ■ Fig. 454. — Osteoplastic Exposure of the Brain: — The Doyen electric motor, with combined saw attachment and dural separator — the latter being inserted through one cranial opening, while the saw is cutting its way to the next. may be inserted under the edge of the convexity of the bone-flap (that part opposite the narrow base of the flap) so as to rest upon the intact portion of OSTEOPLASTIC RESECTION OE SKULL. 575 Fig. 455. — The Hartley Electric Motor with Sterilizable Casing: — The various cutting instruments are attached directly to the armature by means of an adjustable chuck. (Modified from Hartley and Kenyon.) the skull {Fig. 463) — the fingers of the surgeon's left hand pressing upon the "i Figs. 456-459. — Skull-cutting Instruments Adjustable to the Hartley Motor: — A, B, Conical cutters; C, Cutting ball mounted upon cutting cone; D, Composite cutter, com- bining the features of B and C. (Modified from Hartley and Kenyon.) The saws and guards are of the same general type as Doyen's, shown in Pigs. 449-452. skull immediately below the line where it is sought to bend and break the bone — and then with' a sudden sharp (not slow and deliberate) movement of the 576 OPERATIONS UPON THE HEAD. lever the bone is sprung hack — and generally breaks accurately enough for all practical purposes, and drops outward and downward still clinging to its hinge of soft parts (Fig. 464) . (b) To insure a more accurate line of break- age, as well as against splintering of the bone and wounding of the brain, two small trephine-openings may be made immediately opposite each other, at the base of the bone-flap and on the line to be broken, provided it be not too long — a pliable dural separator is now passed between the openings — a Gigli Fig. 460. — Hartley's Sterilizable Compressed-air Motor: — Driven by compressed air, at a pressure of 75 to 90 pounds; the bone-cutting instruments pictured in Figs. 456-459 are adjustable to it. (Modified from Hartley and Kenyon.) saw is conducted beneath the bone — and the bone is sawed sufficiently far through, especially at its edges, to insure an accurate breakage and freedom from splintering when the elevator is used as a lever as just described. (5) As the bone is broken back, it is separated from the dura, where not already detached by dural separator or otherwise. The osteoplastic flap of bone and soft parts is allowed to fall back upon its hinge out of the way. (6) Before proceeding, all bleeding from the diploe is controlled by pressure, plugging the openings with catgut or sterilized wax, or by gently crushing the bony Fig. 461. — Sudeck's Fraise. opening together with bone forceps. (7) The dura is now opened in the form of a flap (Fig. 464), by picking it up with two forceps, incising with knife, and further cutting with curved, blunt scissors (just as described in trephining, q. v.), the division being made sufficiently far from the margin of the bone (at least 6 mm., or I inch) to allow the suturing — and this little flap should be so planned as to preserve the arteries intact which enter its base, ligating them with fine catgut only where they cross the line of incised dura (they are OSTEOPLASTIC RESECTION OF SKULL. 577 Fig. 462. — Osteoplastic Exposure of the Brain: — Manner of using Sudeck's fraise- motor attachment not being here shown. -the Pi„ 4 6 3 — Osteoplastic Exposure of the Brain: — The final loosening of parts of the inner tablet of the bone-flap in places where the saw-section may not have passed entirely through the skull, by a few light taps with a wooden mallet upon a chisel carefully held so as not to pene- trate the brain. 37 578 OPERATIONS UPON THE HEAD. best taken up in advance by passing a small, fully curved needle beneath them). The position of the base of the small dural flap will be determined by the position of the dural vessels, and while it need not necessarily corre- spond with that of the osteoplastic flap, yet it usually does so in a general way. (8) The dural flap having been turned back out of the way, the surface of the brain is exposed and the special object of the operation accomplished (Fig. 4°5) • (9) Upon the completion of the operation the dural flap is sutured Pig. 464. — Osteoplastic Exposure of the Brain: — I. — A composite flap of soft parts and skull has been turned down. The vessels which will be cut in incising the membranes along the dotted line are ligatured in advance by passing a threaded needle beneath them. Scissors are about to divide the membranes which have been lifted away from the brain between two forceps, throwing them into a ridge. back with fine gut to the margin from which cut. (10) The question of intra - or extra-dural drainage, if any, will be determined by the special operation. Strands of silk, silkworm-gut, or fine twists of gauze are usually employed. When used, provision must be made for their passage through the membranes and through the bone-flap — as shown in Figs. 466 and 467. (n) The osseo- cutaneous flap is now turned back into place. The previously freed margin of periosteum clinging to the bone-flap is sutured with interrupted catgut sutures to the margin of the main periosteum from which cut. If muscles OSTEOPLASTIC RESECTION OF SKULL. 579 of any thickness have been involved, these are united by buried catgut sutures. Finally, the skin wound is closed with silk, silkworm-gut, catgut, or silk, by means of interrupted sutures (Fig. 467). If drainage of the extra-cranial wound be indicated, it is accomplished by gauze or fine drainage-tubing, brought out through an opening made by biting a half-button of bone from the edge of the bone-flap with rongeur forceps or through a drill-opening, Fig. 466. If intracranial drainage be used, it is brought out through this half- button opening or drill-opening — and then serves as an extra-dural and extra- cranial drain as well. Fig. 465. — Osteoplastic Exposure of the Brain: — II. — The dural flap is turned down, exposing the brain. Comment. — The narrower the pedicle of the horseshoe flap of bone, the easier it is to crack it across at its base, but it should be broad enough to insure nutrition of the osteoplastic flap. The edges of the bone of the osteoplastic flap and the margin of the cranium may be drilled and the borders of bone united (if thought necessary) by chromic gut sutures. If the osteoplastic flap be beveled, as always should be, if possible, suturing is not necessary — and is not generally necessary any- how, as the adherent scalp usually holds the bone up in place. 5 8o OPERATIONS UPON THE HEAD. It is best to open the dura in all cases calling for osteoplastic resection of the skull. The application of the osteoplastic method of exposure to some of the sites i if the brain is shown in Figs. 468, 469, 470. Fig. 466. — Ixtra-dural axd Extra-dcral Draixage: — I. — The membranes are shown sutured, and through the lower angles of the dural flap a cerebral drain of catgut strands, or silkworm gut, is making its exit from the brain and escaping onto the surface of the scalp, through the drill-holes at the lower angles of the bone-flap, for intra-dural drainage. A bone-drill is seen, the burr in the act of making an opening through the skull, for extra-dural drainage. LINEAR CRANIOTOMY. Description. — The division of the cranial bones in one or more straight lines variously placed — an operation sometimes resorted to in microcephalus for the purpose of giving increased room to the brain. No portion of the bone is removed except the buttons of bone from the trephine-openings made preliminary to the use of the saw. (While craniotomy is performed in micro- cephalus, partial craniectomy, or the removal of a definite piece of bone, is probably a preferable operation for this purpose, if any at all be justifiable.) The operation of craniotomy is included under that of craniectomy (q. v.). PARTIAL CRANIECTOMY. 58l PARTIAL CRANIECTOMY. Description. — Removal of a section of the cranial bones from one or both sides of the head, — an operation sometimes done in microcephalus for the purpose of increasing room for the growth of the brain. (Strictly, in trephining and other cranial operations where the button or part of bone is not returned, the operation becomes a Partial Craniectomy though the term is not here used in that sense.) Preparation and Position. — See under General Surgical Considerations in Cranio-cerebral Operations (page 554). Landmarks. — Nasion and inion, and the general bony landmarks of the skull. Fig. 467. — Intra-dural and Extra-dural Drainage: — II. — The strands of the intra- dural drain are seen at their exit through the drill-holes of the osteoplastic flap; — and the rubber- tube of the extra-dural drain at its exit through the burr-opening in the center of the flap. The soft parts are in the act of being sutured, after turning back the composite flap. Control of Hemorrhage. — By means of a flat rubber tourniquet wound several times around base of skull, small compresses having been placed over the main arteries of the scalp and held in place by the tourniquet — as described under General Surgical Considerations in Cranio-cerebral Opera- tions. This method of control is generally indicated, as hemorrhage is apt to be marked. Incision. — From the junction of the skin of the forehead with the hair, to the inion — passing slightly external to the median line. Operation. — (1) The incision of the soft parts passes through the skin, 5 82 OPERATIONS UPON THE HEAD. fascia, muscle, aponeurosis, and periosteum to bone. Clamp all bleeding vessels uncontrolled by constrictor and ligate the chief ones with gut. (2) The soft parts are raised from the bone by periosteal elevator and turned downward, being held out of the way by retractor, or a stitch or two. The flap thus turned back will be represented by practically the soft parts of one entire side of the skull. (3) Having exposed a large area upon one side of the skull, and having controlled all further hemorrhage, the amount, posi- tion, and shape of bone section are determined. An area of bone in the form of a narrow parallelogram represents the section of bone most usually removed, Fig. 468. — Exposure of the Cerebellum through an Osteoplastic Flap: — A correspond ing dural flap, together with double ligature of the occipital sinus, is shown. though other forms of bone-section are used. Supposing the parallel lines representing this figure to be 1.2 cm. (\ inch) or 1.9 cm. (f inch) apart, a trephine-opening is made at either end of this figure with a diameter of 1.2 cm. or 1.9 cm. (\ or § inch) accordingly. If the distance between the trephine- openings be too long for a dural separator and guide to travel, one or more PARTIAL CRANIECTOMY. 583 intermediate trephine-openings should be made. A pliable dural separator is then passed from opening to opening between bone and dura and traveling in two parallel lines corresponding with the upper and lower margins of the circumference of the trephine-openings. A grooved guide is then passed in the tracks cleared by the dural separator to protect the brain, and the bone then divided in two parallel lines with an electric motor saw (the Powell electric saw answering the purpose well)— first in a line with the upper mar- gins of the trephine-openings and then in a line with the lower margins of these openings. By properly directing the saw both ends of the section may be pointed, going beyond the trephine-openings at both ends. The bone section is best made with a motor saw— it may be made with rongeur forceps — but preferably not with chisel, as chiseling causes too much jarring. In using an ordinary motor saw a trephine-opening is necessary wherever the direction is changed. A Gigli saw passed between the openings also Fig. 469. — Hartley's Double Osteoplastic Flaps for Exposing the Frontal Con- volutions: — Having their bases over the temporal regions. (Modified from Hartley and Ken- yon.) answers well. (4) If there be no special indication for exploration, the dura is not opened. If opened, it is so incised as to admit of subsequent suturing. (5) The bone, of course, is not replaced. The soft parts are sutured into position. No drainage is ordinarily used. Comment. — (1) Hemorrhage from the diploe is apt to be great and may have to be controlled by plugging with catgut or aseptic wax, by crushing together the walls of the bony canals, or by gauze pressure. (2) Probably it is best to operate upon the second side of the head at a subsequent date. (3) A grooved director for the saw can be used — or the dural separator may be grooved. (4) Where craniotomy is done instead of craniectomy the saw- travels only once between the trephine-openings, which are merely large enough to allow of separation of dura and passage of a guide — and no bone (other than the trephine-buttons) is removed. A crescent-shaped piece of bone may be removed, instead of a piece of the above-described shape. 5§4 OPERATIONS UPON THE HEAD. EXPLORATORY PUNCTURE OF THE BRAIN. Description. — For the purposes of exploration, the needle of an aspira- torv syringe may be thrust into the brain substance, especially where pus and fluid tumors or hemorrhage are suspected — the brain having been ex^ posed through a small trephine-opening. A solid needle, or special probe, may be used for the detection of solid bodies. Fig. 470. — Osteoplastic Exposure of the Antero-superior Aspect of the Frontal Lobes of the Brain: — The superior longitudinal sinus is doubly ligated. (Modified from Kiliani.) Preparations and Position. — See General Surgical Considerations in Cranio-cerebral Operations (page 454). Landmarks. — Position of some lesion and localization symptoms, taken in connection with the special structures to be avoided. Incision. — That for ordinary trephining. Operation. — (1) Is the same as that for trephining, up to the raising of the dural flap and the exposure of the brain. (2) The needle is then steadily thrust into the brain in a straight line in any direction indicated by the phe- OPERATION FOR INTRACRANIAL HEMORRHAGE IN GENERAL. 585 nomena present, avoiding the venous sinuses, large vessels, basal ganglia), and ventricles (unless puncture of the latter be indicated). The needle should be withdrawn after each puncture. Whenever it is desired to explore in another direction, the needle is reinserted and always carried in a straight line, without side to side movement. (3) Having accomplished the obi'ect of the operation, or after meeting with a negative result, the wound is closed as after trephining. Comment. — For further data as to exploratory puncture of the intra- cerebral structures, see Operations for Cerebral and Cerebellar Abscess (pages 595 and 596), Tumor (pages 597-599), and Hemorrhage (page 585). OPERATION FOR INTRACRANIAL HEMORRHAGE IN GENERAL. Varieties of Intracranial Hemorrhage. — (i) Epidural (Extra-dural) ; between cranial bones and dura — may be arterial or venous. If arterial — generallv from middle meningeal or its branches. If venous — generally from the superior longitudinal, lateral, or occipital sinus. (2) Intrameningeal; if arterial, generallv from middle meningeal or branches. If venous, fre- quentlv from veins connected with longitudinal or other sinus. If capillary, generallv due to traumatism, and site dependent upon trauma. If subdural (into subdural space), it may be caused either by rupture of dura, and is then generallv from the middle meningeal vessels; or by a vessel of the pia rupturing through the arachnoid. If subarachnoidean (between arachnoid and pia mater), it is due either to rupture of vessels of pia into the pia-arach- noid, or to rupture of middle meningeal through dura and arachnoid. (3) Intracerebral: generally from middle cerebral or one of its branches, especially the lenticulo-striate. Onlv the general features of intracranial hemorrhage will be here con- sidered. For specific operations for hemorrhage from the middle meningeal arterv and its anterior and posterior branches, and from longitudinal and lateral venous sinuses, see ligations of those structures (pages 47, 48, 49 and 586). Preparation and Position. — See General Surgical Considerations in Craniocerebral Operations (page 554). Landmarks. — Determined by circumstances of particular case and by general cranio-cerebral topography. Site of hemorrhage may be determined by external injury or by localization symptoms. Incision. — As for trephining or osteoplastic resection (according to size of opening required), and placed in accordance with nature of case. Operation. — (I) Having exposed the area involved, either by a trephine- opening or osteoplastic section (the steps of the operation up to this point 1 icing, in all essential features, those of one or the other of these procedures), the site of the blood-clot, if any, is located and the source of the hemorrhage traced. (2) The clot is carefully turned out with such an instrument a- the handle of a thin silver spoon — the bleeding vessel is sought and doubly ligated with gut. The dura must, of course, be opened if hemorrhage be subdural — and it is even best to open it though hemorrhage appear to be only epidural, for the sake of verification. Where the hemorrhage comes from the middle cerebral an attempt should be cautiously made, when possible, to reach the site of hemorrhage, by carefully separating the lips of the sylvian fissure and doubly tying the artery with gut. If site of hemorrhage cannot be accuratelv ascertained and still continues, all that can be done is to carefully pack the region with gauze. (3) Finally, carefully irrigate with warm normal 5^6 OPERATIONS UPON THE HEAD. salt solution (except where packing is used) — drain if necessary — closing wound as after simple trephining or osteoplastic resection. Comment. — If no accurate data lead to source of hemorrhage, it is best to seek first in the position of the anterior branch of middle meningeal artery - — then in the position of the posterior branch. LIGATION OF TRUNK OF MIDDLE MENINGEAL ARTERY. See under Ligation of Arteries (page 47). LIGATION OF ANTERIOR BRANCH OF MIDDLE MENINGEAL ARTERY. See under Ligation of Arteries (page 48). LIGATION OF POSTERIOR BRANCH OF MIDDLE MENINGEAL ARTERY. See under Ligation of Arteries (page 49). LIGATION OF LONGITUDINAL OR LATERAL SINUS. Description. — The longitudinal and lateral sinuses are sometimes accidentally injured in operation, or otherwise, or lie directly in the course of some operation — under which circumstances it becomes necessary to control hemorrhage from them, which, when possible, should be done by ligation. (See Figs. 471 and 472.) Preparation and Position. — See General Surgical Considerations in Cranio-cerebral Operations (page 554). Landmarks. — Determined by site of sinus involved. Incision. — Often determined by a preceding injury or local condition — or circumstances calling for ligation may accidentally arise during the course of some other cranio-cerebral operation. If deliberately planned to tie the longitudinal or lateral sinus in the path of an operation (as, for example, preliminarily to exposing a surface of brain more or less covered by a sinus), two small trephine-openings are made on either side and very near the borders of the sinus, after having exposed the site of both trephine-openings by turning back a single oval flap. For course and deviations of the sinuses, see Surgical Anatomy of the Cranio-cerebral Region (page 536). Operation. — (1) Complete the operation, up to the removal of the two buttons of bone, as an ordinary trephining. (2) The dura and, with it, the sinus are detached from the cranium by passing a dural separator between the bone and dura, from one to the other of these two small trephine-openings immediately adjacent to the outer borders of the sinus. The bridge-work of bone between the two openings is then cut away, preferably with Gigli saw (cutting pliers or rongeur forceps). A limited longitudinal incision of the dura is made safely to the outer aspect of each side of the sinus, which enables a more intelligent and safer passage of the ligature than if it were simply carried blindly beneath the supposed lower limit of the sinus. The sinus is thereby fully exposed and is doubly ligated transversely with chromic gut, by passing a fully curved needle beneath the sinus and through the falx cerebri, and divided between the ligatures. If the sinus be wounded to a limited degree, it is often possible to either laterally ligate the rent, or suture \t — as described under the ligation of veins. (3) The operation is completed as indicated by the special circumstances attending it — the button of bone LIGATION OF LONGITUDINAL OR LATERAL SINUS. 53; being replaced, or nut, according to the judgment of the operator. Drain- age would be used or not, as indicated (generally not, if all bleeding be con- trolled and wound be clean). The flap of soft parts is sutured into place. litis. 471 and 472.— Ligation of the Longitudinal Sinus : — A, Exposure of longitudinal sinus by means of two trephine-openings on either side, followed by cutting away the intervening bridge of bone; B. Scalp-flap turned back; C, Two trephine-openings made near the outer borders of the longitudinal sinus, with intervening bone cut away; D, Incisions through dura, on either side of sinus, for passage of needle and ligature ; E, Longitudinal sinus ; F, Cross-section of head, showing position of sinuses. 588 OPERATIONS UPON THE HEAD. OPERATION FOR THROMBOSIS OF LATERAL SINUS. Description. — As a result of otitis media, the adjacent sigmoid and transverse portions of the lateral sinus frequently become infected and undergo sinus phlebitis and thrombosis, requiring their exposure, the removal of thrombosed contents and their obliteration by ligature or otherwise. The operation is intimately connected with that for the exposure of the mastoid Fig. 473. — Operation for Infection and Thrombosis of the Lateral Sinus and Internal Jugular Vein: — I. — The lateral sinus and membranes of the brain exposed through a chiselled opening in the skull. The internal jugular vein exposed in the neck and doubly ligated. antrum and cells, which should be reviewed in this connection (pages 600- 608). The internal jugular vein may also be involved and require exposing. Preparation and Position. — See General Surgical Considerations in Cranio-cerebral Operations (page 554). Landmarks. — Lines for sigmoid and transverse portions of the lateral sinus. (See Surgical Anatomy, pages 536 and 542, and also Fig. 479, L M.) OPERATION FOR THROMBOSIS OF LATERAL SINUS. 589 Incision. — Where this sinus, at junction of transverse and sigmoid portions, is independently exposed, a horseshoe flap is turned down, with pedicle below, so planned as to expose an area with its center about 2.5 cm. (1 inch) behind and 6 mm. (\ inch) above the center of the external auditory meatus. Where the opening-up of the neighboring sinus is simply a con- tinuation of the mastoid operation (which is usually the case) the incision for the exposure of the sinus is prolonged from the original incision. Fig. 474. — Operation* for Infection and Thrombosis of the Lateral Sinus and Internal Jugular Vein: — II. — The lateral sinus has been incised, the clot removed, its cere- bral end packed with gauze, and its cervical end left open for irrigation. The internal jugular vein has been ligated below the thrombosis and its upper end opened and brought out for drainage through the otherwise closed wound in the neck. Operation. — (1) Proceeding as in the operation of trephining, a trephine having a diameter of about 2.5 cm. (1 inch) is applied over this center and a button of bone carefully removed, without injury to dura and without pre- mature opening of sinus (Figs. 415 and 473). Whatever additional room 590 OPERATIONS UPON THE HEAD. may be required can be gotten by biting out the circumference of the trephine- opening by means of rongeur forceps. (2) Thrombosis having been deter- mined by palpation and exploratory needle, the thrombosed sinus is now laid open longitudinally and the contents carefully turned out with a special scoop, as far as accessible in both directions, or until a patulous condition is reached, when the flow is controlled by gut ligature of the sinus, if possible, or by gauze packing. (3) The mastoid antrum and cells, the usual source of the original infection, are generally opened up into continuity with the sinus by means of a gouge, sharp spoon, or chisel. (4) The internal jugular vein is often exposed in the neck (page 474), when found in a condition of thrombosis, and ligated. The thrombosed vein may then be opened above the ligature and the vein irrigated from the lateral sinus, and vice versa. (5) The wound is packed, and closed only in part, room being left for drainage. Comment. — If contents of lateral sinus be fluid, the sinus, if possible, should be ligated prior to opening the thrombosed part. A firm, healthy clot, about to undergo organization, may sometimes be left on the distal side of a ligature. TREPHINING FOR FRACTURE OF SKULL. Description. — The seat of fracture is exposed, the depressed pieces of bone are elevated to the common level, and any spicuke of bone which may be exercising pressure upon the brain are removed. Preparation and Position. — See General Surgical Considerations in Cranio-cerebral Operations (page 554). Landmarks. — Determined by the nature and site of the fracture ami general cranio-cerebral topography. Incision. — Where a skin wound exists, this is usually enlarged, or used as a part of the incision for the exposure. Where the skin is unbroken, the site of fracture is best exposed through a U-shaped flap, as in trephining. Operation. — (1) The soft parts, including the periosteum, are turned back, in the same manner as in trephining, and site of fracture thus exposed — hemorrhage being controlled as in that operation. Even where the bones of a depressed fracture can be raised by being levered back into position without exposing the brain (which often can be done), it is always best to expose the dura at least — and safer still to open the dura and examine the surface of the underlying brain. (2) The following steps of the operation are conducted very much as in ordinary trephining. The point of the trephine is placed upon sound bone that will resist pressure, avoiding the site of vessels and sinuses, and in a position from which the fractured bone can be best raised — with the major portion of the circle (which should be from 1.2 to 1.8 cm., or \ to f inch) generally lying over sound bone, and the inner portion overlapping or coming in line with the fractured margin. When the button of bone is removed, if more room be needed, it can be gotten by biting out portions of bone with rongeur forceps. (3) A blunt elevator (an osteotome answers well) is now carefully inserted beneath the fractured bone, resting upon the sound margin of bone, or upon an instrument or a finger stretched across the area as a fulcrum, and the fractured bone levered back into place, without disconnecting it from its natural attachments (Fig. 475). (4) Some- times judicious use of chisel or saw will aid in freeing the fragments. All sharp edges are rounded off. All pieces likely to become detached are removed. (5) The dura, if deliberately opened by the operator, is repaired as after OPERATION FOR BULLET WOUND OF BRAIN. 591 trephining — if wounded by fragments, is repaired by catgut suturing as fully as possible. (6) The manner of treating bone space left by trephining for fracture is the same as after simple trephining. Drainage is used, if indicated — and the wound entirely or partially closed in accordance. Fig. 475. — Operations for Fractures of the Skull: — A, A loosened fragment of bone being pried out by an instrument introduced beneath its border through a trephine-opening made immediately adjacent to and continuous with one of the lines of fracture. B, Levering out a bony fragment from an adjacent margin of sound bone as a fulcrum. C, The removal of a fragment by means of bone-holding forceps. OPERATION FOR BULLET WOUND OF BRAIN. Description. — For the purpose of seeking the bullet, removing spiculas of bone and foreign material, and for providing drainage. Preparation and Position. — See General Surgical Considerations in Cranio-cerebral Operations (page 554). Landmarks. — Determined by position of wound and position of im- portant underlying structures and areas. Incision. — An oval (or reversed U-shaped) flap, with pedicle downward, and center corresponding with wound. Operation. — (1) The soft parts are incised to the bone, the vessels clamped and tied, and the flap raised and turned back. If trephining were not con- templated, the periosteum need not be raised with the flap — but as the use 592 OPERATIONS UPON THE HEAD. of the trephine or that of the rongeur is practically always indicated, the bone should be completely bared. (2) Access to the brain may be gotten by biting out the circumference of the wound-opening with rongeur forceps, or, better, by trephining with a trephine whose diameter is sufficiently large to make a cut extending around the wound 1.2 to 1.8 cm. (h to f inches), according to accompanying circumstances, and with the precautions observed in trephining for fracture (q. v.). All fragments of bone are removed or elevated into position — and all foreign material is picked out with forceps as encountered. (3) Having thus enlarged the bullet wound, the bullet is sought along its track with such instruments as a long, delicate needle, Fluhrer's Fig. 476. — Operations for Bullet-wounds of Skull and Brain : — Above, the bullet- wound in the skull has been trephined and a button of bone, whose center is the bullet-hole, is being removed. Below, the bullet-hole in the bone is being enlarged by biting out its mar- gin with special rongeur forceps. aluminium probe, or Girdner's telephone probe. If the bullet can be reached with special forceps, it may be withdrawn by that means through the original wound, especially if near it. If the bullet be near the far end of the wound- track, it is generally more readily and safely removed through a counter- opening. Such a counter-opening may be made at a point determined by thrusting a probe along the track of the wound, directly in the line of the bullet-track, to the inner wall of the opposite side of the skull — passing the bullet if it lie on the way — followed by tying a piece of silk to the outer end of the probe and carrying the silk across the shaved scalp at different points OPERATION FOR EXPOSURE OF A MOTOR CENTER. 593 upon its contour — the common point at which these lines all intersect will indicate the point on the exterior of the skull opposite which the inner end of the probe has come into contact with the inner wall of the skull. At this point a trephine-opening is made. The counter-opening is made with a trephine of 3.8 to 5 cm. (i^ to 2 inches) in diameter, as the bullet is apt to lie an inch or more below the point of striking the inner wall, and room is often necessary for manipulation and exploration. Upon a probe, a grooved director is carried down to the bullet, and upon the director a pair of bullet- forceps, with which the bullet is grasped and removed. When the region does not admit of a counter-opening, as toward the base of the brain, the bullet must be removed through a single opening. (4) Thorough drainage may be instituted by drawing, upon a long probe, a few strands of silk, silk- worm-gut, or rubber drainage-tube. (5) The wound is carefully irrigated, and then closed up to the points of drainage. Comment. — The bullet may sometimes be located by placing the patient so that the bullet-track is vertical, and then letting the probe drop into the wound as far as possible. It may also sometimes be located by means of x-ray shadows taken in two directions. OPERATION FOR EXPOSURE OF A MOTOR CENTER. (ILLUSTRATED BY OPERATION FOR FOCAL EPILEPSY.) Description. — The operation performed for Focal Epilepsy consists in the exposure of an area to which attention has been called by convulsive movements beginning in those parts controlled by that area — or in connection with which some. injury has been received — the object being to remove the source of irritation, which may be some form of pressure or an adhesion, or a part of the motor center itself may be removed to a limited extent — the area usually being exposed by trephining. It will be supposed, in the present case, that the epileptic seizures are preceded by muscular twitchings of the muscles of the right fingers, hand and forearm. The exposure of the cortical center presiding over these structures will be indicated, namely, the lower posterior part of the middle third of the sensori-motor area of the left side. Preparation and Position. — See General Surgical Considerations in Cranio-cerebral Operations (page 554 1. Landmarks. — Site of the motor center (here, for example, the center for the right fingers, hand and forearm) is determined by some form of local- ization method (in this instance, by Chipault's method, page 546). Incision. — An oval flap (U-shaped), with convexity above and base below, is outlined, having its center about 1 cm. (f inch) posterior to the junction of the lower third and fourth tenths of Chipault's rolandic line (see Chipault's method). For the bone-section, a trephine of at least 3.8, cm. (ij inches) should be used. Operation. — (1) The steps of the operation, up to the removal of the button of bone, are the same as for trephining. (2) Open the aura in the form of a small flap, as heretofore described. As soon as the brain is exposed carefully examine for abnormal adhesions between dura and brain, and, if detected, free by cautiously sweeping a bent probe between these structures. If bony growths be found pressing upon brain, remove them by bone-section. (3) If part of a motor center is to be removed, incise the brain substance 38 594 OPERATIONS UPON THE HEAD. in the direction of the commissural fibers, making the incision carefully with delicate knife or scissors. (4) Tie all bleeding meningeal and cerebral vessels with fine gut — dividing them in advance, where possible, between double ligatures. Harm pia mater as little as possible, and replace if pushed aside. (5) To avoid readhesion, if previous adhesion existed, or to avoid new adhe- sion, plates of very thin celluloid, gold leaf, gutta-percha, decalcified bone- plate, india-rubber, etc., are sometimes placed over the pia mater. (6) The dura is carefully sutured with fine gut. The button of bone is replaced or not, according to the surgeon's judgment. The scalp-flap is sutured, without drainage, and speedy union especially sought. PUNCTURE AND DRAINAGE OF LATERAL VENTRICLES. Description. — Puncture of the lateral ventricle and withdrawal of cerebro- spinal fluid by aspiration, simple drainage by cannula, or by capillary drainage. Indications; acute hydrocephalus (to withdraw excess of fluid and relieve tension) ; chronic hydrocephalus (to withdraw excess of fluid and relieve tension, or to inject medicated fluid); meningitis (for drainage). Preparation and Position. — See General Surgical Considerations in Cranio-cerebral Operations (page 554). Landmarks. — Junction of the third and fourth tenths of Chipault's temporo-sphenoidal line represents the posterior part of the body of the lateral ventricle. (For this, as well as for the descending and posterior horns, see Chipault's Cranio-cerebral Localization Method, page 548.) Incision. — An oval or inverted U-shaped flap with its center at the above point is outlined. The bone-section should be made by a trephine of at least 2.5 cm. (1 inch) in diameter. Operation. — (1) Having made and turned down the flap of soft parts — controlled hemorrhage by clamps and ligature — applied trephine and removed disc of bone — the dura is exposed and a small dural flap turned down. (2) The needle of the aspiratory syringe, or trocar and cannula, is then thrust directly into the substance of the brain, opposite the point indicated above, avoiding all visible vessels — and is made to penetrate horizontally inward for one-third of the transverse diameter of the brain itself (as determined after subtracting the thickness of the scalp and skull of both sides from the total thickness of the head on the line of puncture). (See Chipault's Method, Other Points and Lines, page 547 .) Through the needle (or cannula) introduced fluid is withdrawn. (3) Subsequently, before withdrawal of instrument, medicated fluid may be injected, if indicated. Where it is desired to introduce drain- age, silk, silkworm-gut, wick, gauze, or a drainage-tube may be introduced through the cannula, if a trocar and cannula have been used — or by means of special forceps alongside an ordinary aspiratory needle before its withdrawal. (4) If no drainage be instituted, the wound is closed as after simple trephining. If drainage be used, the dura and soft parts are only partially sutured, and the button of bone is either not returned, or only a part of it is returned. Comment. — While it is more satisfactory to open the dura, thus exposing the condition of the brain and the position of the vessels, yet where drainage is not indicated, the lateral ventricles may be aspirated through the unopened dura. OPERATION FOR CEREBRAL ABSCESS. 595 INCISION OF THE CEREBELLAR SUBARACHNOID SPACE FOR DRAINAGE. PARKINS OPERATION. Description. — The exposure, by trephine, of the membranes in the cerebellar fossa, followed by the incision of the subarachnoid space below the tentorium cerebelli. Sometimes performed for the relief of intracranial pressure by dependent drainage of the cerebrospinal fluid in acute and chronic meningitis and in hydrocephalus. Preparation and Position. — See General Surgical Considerations in Cranio-cerebral Operations (page 554). Landmarks. — Lines of lateral and occipital sinuses. Incision. — An oval (or reversed U-shaped) flap is outlined, with con- vexity upward and base downward toward the neck, and its center over the center of the right or left cerebellar fossa. Operation. — (I) The incision outlining the above flap is carried to the bone, the vertical portions of the incision passing, at this site, through con- siderable thickness of muscular tissue, and rather free bleeding may occur. All vessels are clamped and tied with catgut. The flap is retracted down- ward and the occipital bone exposed. (2) A trephine of about 1.2 cm. (1 inch) diameter is so applied as to be safely below the lateral sinus, and safely to the outer side of the occipital sinus, and away from the thickness of the external occipital protuberance. The button of bone thus defined is removed, and the dura exposed. (3) The dura is seized with delicate forceps and incised with knife or scissors sufficiently to make a satisfactory opening for drainage — and the subarachnoid space thus entered. (4) Drainage is accom- plished by strands of silk, silkworm-gut, wick, gauze, or tubing. (5) The button of bone is not returned. The wound is sutured in part, leaving open only enough space for drainage. OPERATION FOR CEREBRAL ABSCESS. Description. — Intracranial abscess may be extradural or intracerebral. The site of abscess (when not directly traceable to an evident cause) is deter- mined, in conjunction with constitutional symptoms, by local compression symptoms referable to the part of the brain pressed upon by the collection of pus — and the operation is done over that area determined by these symp- toms. The most frequent causes of cerebral abscess are otitis media, first of all, and conditions of suppuration in the orbital and nasal cavities. Abscess occurs more frequently on the right side. Preparation and Position. — See General Surgical Considerations in Cranio-cerebral Operations (page 554). Landmarks. — The site of abscess, if not otherwise fixed, is determined by pressure symptoms, and localized by known position of center pressed upon. Incision. — An oval (or reversed U-shaped) flap is outlined for the appli- cation of a trephine of about 3.8 cm. (1^ inches) diameter — the center of the trephine to be placed over the site determined as above described. A 596 OPERATIONS UPON THE HEAD. trephine-opening will generally suffice, though an osteoplastic (lap is some- times raised. (See Comment.) Operation. — (1) The ordinary steps of a trephining (or the raising of an osteoplastic flap) are carried out, up to the exposure of the dura. (2) If an abscess be found between the cranium and dura, it is evacuated (pro- tecting the diploe as much as possible), irrigated, and loosely packed with gauze, a portion of the gauze serving as a drain. The scalp-flap is sutured back in place throughout its greater part, room being left for drain. The but- ton of bone is usually not replaced — if used at all, only a part of the button is returned, the rest being bitten off for drain-opening. (3) If pus be not thus found outside of dura, a flap of dura is raised, as in trephining, and the brain exposed and explored in various directions with a needle (see Exploratory Puncture of the Brain, page 584). Wherever found, especially if deep, the needle is left in situ and serves as a guide. The dura over the site is divided by a crucial incision (to provide free exit), a linear incision tending to close. If dura be divided before the presence of abscess is assured, a straight inci- sion of the membrane is made, admitting of subsequent suture if indicated. Before freeing the pus, the cut diploe should be protected from infection as well as possible, by a strip of thin rubber tissue, or by smearing the bone- section with sterile vaseline. The abscess cavity may be cut into by a punc- ture-like thrust of a knife — or, probably better, a pair of special forceps (or ordinary dressing forceps) may be inserted closed, guided by the needle left in situ, and then opened to a limited extent, allowing the pus to drain along the handles, or a grooved director may be used. Two parallel pieces of small-calibered rubber drainage-tubes are then inserted, one serving for inflow of irrigant, the other for the outflow of pus — the tubes being held in place by transfixing them with a safety-pin resting upon the gauze which has been packed around them. (4) The dural and scalp flaps are partly sutured into place, leaving room for drainage. Comment. — As the most general cause of cerebral abscess is otitis media, the most usual site for the abscess is in the temporo-sphenoidal lobe, in the middle fossa of the skull, adjacent to the antero-superior aspect of the petrous portion of the temporal bone — and the landmark for the operation is, there- fore, generally taken as a point 1.8 to 2.5 cm. (f to 1 inch) above Reid's base-line (see Reid's Method of Cranio-cerebral Localization, page 551, also Fig. 415, S), on a line drawn vertically upward along the posterior border of the external auditory meatus, at right angle to the base-line — and this point is used as the point at which first to explore, where uncertainty exists. This site having been exposed, if evidence of pus be not found, explore with needle, of fair calibre, and preferably first through the unopened dura — first inward, forward, and downward toward the apex of the petrous por- tion of the temporal — then upward and forward, and backward and inward, and in other directions — but guarding the basal ganglia and the petrosal sinuses. When pus is located, the dura is always incised. OPERATION FOR CEREBELLAR ABSCESS. Description. — Like cerebral abscess, cerebellar abscess may be extra- dural or intracerebellar. As the cause of abscess is generally, as in the case of the cerebrum, otitis media, the abscess is usually found in the vicinity OPERATION FOR CEREBRAL TUMOR. 592 of the posterior or postero-superior aspect of the petrous portion of the temporal bone. The site is usually exposed by a trephine-opening. Preparation and Position. — See General Surgical Considerations in Cranio-cerebral Operations (page 554). Landmarks. — The external auditory meatus and the lines of the sigmoid and transverse portions of the lateral sinus. Incision. — Draw a line from the external occipital protuberance to the center of the external auditory meatus. To allow for an unusually low trans- verse portion of lateral sinus, trephine 1 cm. (fy- inch) below this line. And to avoid the sigmoid portion of the lateral sinus, and also the occipital artery trephine posterior to a vertical line placed 3.5 cm. (if inches) behind the center of the external auditory meatus. Outline an oval (or reversed U- shaped) flap with its center calculated to be over the center of the above indicated area — the limbs of the incision running well into the neck, as the occipital fossa is to be opened below the nuchal furrow. Operation. — (1) Carry the incision outlining the flap to the bone — control hemorrhage, which is apt to be marked, by clamp and ligature. Retract this thick muscular flap downward, exposing the occipital bone below the superior curved line. (2) Apply, in the site indicated under Incision, a trephine of at least 2.5 cm. (1 inch) diameter and remove the button of bone, exposing the cerebellar dura. (3) The abscess is now sought in a direction forward, upward, and outward; or forward, upward, and inward, in the same general manner as in cerebral abscess — and, if found, dealt with in the same fashion — and the wound finally similarly treated. Comment. — Cerebellar abscess is often encountered, when it exists, in the course of an operation upon the mastoid region — during an operation where the inner wall of the mastoid process has been exposed and removed, laving bare the lateral sinus and the dura anterior and posterior to it. Where the abscess follows disease of the inner mastoid wall, it generally lies behind the lateral sinus and in contact with the involved bone. Where the abscess is connected with involvement of the labyrinth, it lies in front of the lateral sinus and in connection with the internal meatus or vestibular aqueduct. A fistula generally leads from the diseased bone to the abscess. OPERATION FOR CEREBRAL TUMOR. Description. — Removal, en masse, of growths from surface or interior of brain. Those involving the basal ganglia, internal capsule, and base of brain generallv, are inoperable. Preparation and Position.— See General Surgical Considerations in Cranio-cerebral Operations (page 554). Landmarks.— Site of tumor will have been determined by localization symptoms — and site of operation determined accordingly. Incision. — Amount of room required for recognition and removal of tumor generallv necessitates an osteoplastic resection of the skull, which should be planned with reference to the particular case. Or the overlying bone may be totally and permanently removed by making several small trephine-openings and connecting these — or a large trephine may be first used and the margins of the resulting opening bitten out with rongeurs as far as necessarv— in either of which cases a horseshoe flap of soft parts is temporarily turned down and then replaced. 59§ OPERATIONS UPON THE HEAD. Operation. — (i) The steps of the operation, up to the exposure of the dura, are the same as for osteoplastic resection of the skull, hemorrhage being controlled as during that operation. (2) The dural flap is turned back as in osteoplastic resection. The pia mater is divided in the direction of the length of the tumor — hemorrhage from the pia being controlled by slight tension upon it or by ligature en masse. (3) The situation and extent Fig. 477. — Removal of a Cerebral Tumor through an Osteoplastic Exposure: — The outlying area has been previously ligatured off by the needle and ligature seen dipping deeply beneath a cerebral vessel into the brain substance. The tumor is shown partly separated by a special spoon. of the tumor are now determined by palpation and exploration. (4) Having reasonably settled both of these questions, the tumor is to be excised. The incision into the brain substance is begun, where possible, at the apex of a convolution and is made in the direction of its commissural fibers — and rather over a convolution than over a sulcus, as there is less hemorrhage. A special spoon may also be used (Fig. 477). If the tumor be encapsulated, OPERATIONS UPON THE GASSERIAN GANGLION. 599 divide the overlying brain and gently retract the cerebral substance, cutting from above downward, and enucleate with a spoon. If the tumor lie beneath the surface but not encapsulated, isolate by carefully incising its connections and enucleating with such an instrument as the curved handle of a thin silver spoon. Cystic tumors sometimes only admit of draining, cauterizing, and packing. (5) The cavity left is lightly packed with gauze if bleeding occurs. Where possible, the brain incision is closed with catgut, with or without drain- age, as indicated. The dura is sutured. Celluloid or metallic plates are some- times used to reinforce the opening. The osteoplastic flap or flap of soft parts, according to method of exposure used, is sutured into place, as in the osteoplastic resection or trephining operation respectively. Comment. — If working in the motor area, use of the faradic electrode mav corroborate diagnosis. OPERATION FOR CEREBELLAR TUMOR. Description. — The operation is similar to that for cerebral tumor, in essential details — with the following modifications (chiefly from the greater inaccessibility of the cerebellum) : — (a) A horseshoe flap of soft parts alone may be used, with its base toward the neck — or an osteoplastic flap may be raised: — (b) In the former case, the opening in the bone is made with a trephine of as large a diameter as feasible, and is enlarged, if necessary, by biting out its circumference with rongeurs. Thinness of the occipital fossa^; nearness of the sinuses of the occipital bone and proximity of the foramen magnum require especial care, and make the osteoplastic method especially difficult. OPERATIONS UPON THE MASTOID ANTRUM AND CELLS. See under Operations upon the Bony (Air) Sinuses of Head and Face (page 600). OPERATIONS UPON THE GASSERIAN GANGLION. See under Operations upon the Nerves, Plexuses, and Ganglia (pages 175 and 181). 6oo OPERATIONS UPON THE HEAD. II. THE BONY (AIR) SINUSES OF THE HEAD AND FACE.* OPERATIONS UPON THE MASTOID ANTRUM AND CELLS. SURGICAL ANATOMY OF MASTOID ANTRUM AND CELLS. Muscles of the Mastoid Region. — Retrahens aurem; occipitofrontalis; sternomastoid; splenius capitis; trachelomastoid ; digastric. Fig. 478.— Surgical Anatomy of Middle Ear and Mastoid Region :— With membrana tym- pani removed and four windows chiseled into mastoid process : A, Pinna of ear stitched to cheek ; B, Curved incision of exposure, back of ear ; C, Soft external auditory canal; D, Temporal fascia ; E, Mastoid cells ; F, Mastoid antrum ; G, Lateral sinus ; H, Suprameatal spine ; I, Bony plate covering facial nerve ; J, Promontory and fenestrum rotundum ; K, Malleus ; L, Incus ; M, Stapedius muscle ; N, Tensor tympani muscle ; O, Chorda tympani nerve. (From drawing made from cadaver, in De- partment of Operative Surgery, College of Physicians and Surgeons, by Dr. A. E. Schmitt.) Arteries of the Mastoid Region. — Posterior auricular and occipital branches of external carotid. Veins of the Mastoid Region. — Posterior auricular (emptying into temporomaxillary vein); occipital (emptying into internal jugular). * Among the Bony (Air) Sinuses of the Head and Face, will be considered the Mastoid Antrum and Cells, the Frontal Sinus and the Maxillary Sinus — the Ethmoidal and Sphe- noidal Sinuses more properly belonging to the special surgery of the Nose. SURGICAL ANATOMY OF MASTOID ANTRUM AND CELLS. 601 Nerves of the Mastoid Region. — Posterior auricular branch of facial; auricularis magnus from cervical plexus; occipitalis minor from cervical plexus; auricular branch of occipitalis major; external branch of posterior division of second cervical nerve. Mastoid Antrum. — A retort-shaped cavity situated in mastoid portion of temporal bone, communicating with mastoid cells posteriorlv, and opening, anteriorly, through aditus ad antrum, into highest part of tvmpanic cavity, the epitympanic recess (attic of tympanum), thereby communicating with eustachian tube. The epitympanic recess lies above the anterior three- fourths of the orifice of the opening of the antrum into tvmpanic cavity. The floor of antrum lies below the level of the entrance into antrum, generally Fig. 479— Surgical Anatomy of Mastoid Region and Middle Ear :— With membrana tym- pani removed ; mastoid cells, mastoid antrum, and lateral sinus exposed ; and trephine disc removed just above temporal crest and ear ; A, Soft auditory canal in turned-back ear ; B, Temporal muscle; C, Temporal crest ; D, Horizontal semicircular canal ; E, Promontory ; F, Fenestrum rotundum ; G, Stapes; H, Facial nerve; I, Mastoid cells ; J, Arrow passing from attic to antrum, along aditus ad antrum; K, Trephine-opening exposing posterior branch of middle meningeal artery; L, Horizontal limb of lateral sinus ; M, Descending limb of lateral sinus ; N, Beginning of internal limb of lateral sinus ; O, Opening of opposite lateral siuns ; P, Opening of longitudinal sinus ; Q, Opening of superior petrosal sinus ; R. Mastoid foramen. ( From drawing made from cadaver, in Department of Operative Surgery. College oi Physicians and Surgeons, by Dr. A. E. Schmitt.) corresponding with level of center of auditory meatus, or even higher. The communication between antrum and epitympanic recess is triangular in shape, with base upward and rounded angle below; its lower portion being on level with superior wall of external auditory meatus; its measurement being about 4 mm. ( T \ inch) both transversely and vertically. The antrum lies from 7 to 14 mm. (y\- to ^g- inch) from surface of mastoid bone; and from 7 to 12 mm. ( T \ to T 8 g inch) behind superior posterior margin of tympanic ring — the outer portion of overlying bone being hard, the inner portion more spongy. The antrum measures, longitudinally, 10 to 15 mm. ( T 6 g to T f inch) ; vertically, 10 mm. (y 6 ^ inch); transversely, 4 to 6 mm. (f\ to T \ inch). In infancy and childhood the antrum is nearly full size, but the mastoid cells rarely develop before twelve years of age. The overlying bone is relatively thin in the young. 602 OPERATIONS UPON THE HEAD. Mastoid Cells. — Situated within mastoid process of temporal bone; opening, anteriorly, into mastoid antrum; and extending, postero-inferiorly, sometimes to tip of mastoid process. Relations of Mastoid Antrum. — (I) Superiorly; antrum is separated from middle cranial fossa of skull by a thin, bony plate, the tegmen tympani, sometimes partially deficient, a fibrous membrane and vascular tissue then intervening. Roof of antrum generally corresponds to supramastoid crest, though sometimes being upon a higher level than crest, in which latter cases the inferior temporal convolution of the cerebral hemisphere may overlap upper part of antrum. (2) Inferiorly; floor of antrum is formed by mastoid portion of petrosal bone. (3) Anteriorly; a thin wall of bone comes between antrum and deep portion of auditory meatus. (4) Posteriorly, extends backward and outward, lying nearer surface posteriorly than anteriorly, approaching sigmoid portion of lateral sinus, sometimes but a thin bony lamina intervening, though distance between the two generally averaging 5 to 10 mm. ( T 3 g- to j's inch) and usually consisting of mastoid cells; the lateral sinus ordinarily lying nearer the surface than the antrum. (5) Externally; outer wall is formed by squamous portion of temporal below supramastoid crest. (Figs. 478 and 479.) Fig. 480. — Incision for Exposing the Antrum and Mastoid Cells and the Neighbor- ing Intracranial Structures: — B D, Incision for exposing mastoid antrum and cells (antrum operation of Schwartze); B A and B E, Incisions for exposing brain abscess; C F, Incisions for exposing lateral sinus; G H, Incision for tympano-mastoid exenteration (radical operation of Schvvartze-Stacke); L, Auricle drawn forward; I, Suprameatal crest; J, Suprameatal spine; K, Position of mastoid antrum; M, Lateral sinus; N, Occipital artery. SURFACE FORM AND LANDMARKS OF MASTOID ANTRUM AND CELLS. External auditory meatus — varying in shape, size, and in the direction of its longest diameter. Separated from mastoid process by the concha of the ear. External auditory canal — corresponds with general direction of approach to antrum through mastoid process. Mastoid process of temporal bone — contour generally capable of being outlined through the skin. SURGICAL CONSIDERATIONS IN MASTOID OPERATIONS. 603 Supramastoid crest (linea temporalis) — continuation of zygomatic ridge backward. Suprameatal triangle — site of approach to mastoid antrum; having follow- ing boundaries; Superiorly, supramastoid crest; Inferiorly and Anteriorly, outer margin of posterior superior quadrant of bony external auditory meatus; Posteriorly, vertical line drawn upward along most posterior margin of bony external auditory meatus. (Fig. 480.) Suprameatal fossa (fossa mastoidea) — depression in upper posterior angle of suprameatal triangle. Suprameatal spine — crest of bone separating suprameatal fossa from external auditory meatus. Suprameatal line — line continuing level of suprameatal spine backward. Remains of masto-squamosal suture — sometimes exists, with small canals occupied by connective tissue and veins. GENERAL SURGICAL CONSIDERATIONS IN OPERATIONS UPON MAS- TOID ANTRUM AND CELLS. Site and Direction of Operation for Opening Antrum. — (i) Site lies in suprameatal fossa, directly within suprameatal triangle, or immediately behind it. This generally brings upper edge of opening about 3 mm. (y% inch) below suprameatal line, and about 5 mm. ( T 3 g- inch) behind bony external auditory meatus. (2) Direction of opening passes inward and slightly upward and forward, following general direction of bony external auditory canal. This will open into anterior part of antrum, at distance of from 7 to 14 mm. (tV t° tV inch) (extremes, especially in disease, from 3 to 18 mm., or -f^ to Cl- inch) from surface of mastoid process. General Precautions in Operating. — (i) Keep below supramastoid crest — to avoid middle cerebral fossa of skull. Middle cranial fossa some- times dips down to quite a low level between petrous and squamous portions of temporal bone, and the roof of antrum and tympanum form part of floor of this fossa. The level of floor of fossa may vary as much as 2 cm. (-^-f inch) but is never as much as 1 cm. (f^ inch) below supramastoid crest. Where supramastoid crest cannot be felt, keep 3 mm. ( T 2 g- inch) below horizontal line running backward from upper edge of bony external auditory meatus, in order to avoid middle fossa. To further avoid the possibility of entering middle cranial fossa, make opening at first directly inward, penetrating from 5 to 8 mm. (y 3 g- to j\ inch) before taking an upward direction. (2) Do not go more than 2 mm. (between T V and T 2 g- inch) behind posterior limit of suprameatal triangle — to avoid lateral sinus. (3) Check instrument as soon as antrum is entered — to avoid external semicircular canal and facial nerve. Special Structures to be Avoided. — (i) At inferior aspect of entrance into antrum, inner wall of antrum bulges slightly over external semicircular canal, which lies on median side of aditus, superior to and separated from fallopian canal by thin lamina of bone. It may form the antero-median wall of antrum, if it project backward. To avoid injury to external semi- circular canal, check instrument as soon as cavity of antrum is reached. The inner wall of antrum lies about 17 to 20 mm. (y^- to T § inch) from surface of mastoid. (2) On inner side of epitympanic recess, inferiorly and anteriorly to the bulging marking external semicircular canal, is the arching osseous 604 OPERATIONS UPON THE HEAD. canal of the facial nerve. The wall toward antrum is thin and partly wanting. Avoid facial nerve by not directing the opening too far forward. The per- pendicular portion of fallopian canal, with contained nerve, may be 3 mm. (A- inch) internal to posterior periphery of ear-drum, or its position may be almost immediately opposite this posterior periphery. (3) Between external semicircular canal anteriorly, and lateral sinus posteriorly, the air-cells are separated from posterior fossa of skull by bony wall from 1 to 9 mm. (from less than yg- to T 6 g- inch) thick. (4) Extreme curvature of sigmoid portion of lateral sinus may occur. 'Where this exists, the sigmoid sinus may be in almost direct contact with outer cortex of mastoid, and it may come to within 3 mm. (3% inch) of posterior wall of bony auditory meatus. As its course cannot be known in advance, it is best avoided by careful use of gouge or chisel (which are preferable to all instruments which approach by boring their way). Manner of Making Bone-section. — Bone is divided either by chisels and mallet, aided by hand gouges and curettes; or by a burr driven by an engine or worked by hand, followed by use of gouges and curettes. INSTRUMENTS. (i) For incision and repair of soft parts, see instruments used in cranio- cerebral operations (page 557). (2) Special instruments used upon mastoid process, auditory canal, and tympanic cavity, are the following: small mallet; chisels; gouges; guard for gouge; scoops; curettes; elevators; small trephine; forceps; burr driven by hand or by engine; bradawl; two or three centi- meters of a metallic millimeter measure. (3) Special instruments for intra- tympanic work; straight and angled knives; tenotomy knives; synechia knives; ear-drum knives; incus hooks; fine forceps. OPERATION FOR EXPOSING MASTOID ANTRUM AND CELLS. ANTRUM OPERATION OF SCHWARTZE. Description. — In this operation only the antrum and cells of the mastoid process are opened up, without invading the cavity of the tympanum. Indi- cated in such conditions as empyema, osteitis, or osteomyelitis occurring in the mastoid process alone. In the following account the description of J. Orne Green is largely followed. (See Fig. 481.) Preparation. — The ear is irrigated with antiseptic solution and packed with sterile cotton. The hair of the neighborhood is shaved, and the head and neck enveloped in sterile dressings. Position. — Patient rests upon side, with head elevated and so placed upon its opposite side as to make mastoid region prominent, resting upon a firm cushion to prevent jarring. Surgeon stands behind patient. Assistant stands opposite and to one side of surgeon. Landmarks. — External auditory meatus; supramastoid crest; mastoid process. Incision. — Slightly curvilinear, placed behind ear — beginning 1 cm. ( T fi g- inch) above level of upper edge of auditory meatus and passing down- ward at a distance of 0.5 to 1 cm. (yg- to T 6 T inch) behind insertion of auricle, and ending at tip of mastoid process. (See Fig. 480, B, D.j ANTRIM OPERATION OF SCHWARTZE. 6o = Operation. — (1) Incision passes through skin, overlying muscles, and peri- osteum directly to bone (Fig. 481). (2) The soft parts are elevated from the bone with periosteal elevator — anteriorly, until the supra meatal spine is ex- posed — posteriorly, until the mastoid process is bared. (3) From the supra- meatal spine, draw a line horizontally backward. Make an opening with its upper edge 3 mm. (y 2 ^ inch) below this suprameatal line, and its anterior edge 5 mm. (y 3 ^ inch) behind the auditory meatus — which position will correspond with the suprameatal fossa (fossa mastoidea) when that depression is suffi- ciently marked for recognition. The area of operation, bounded as above, will extend over a surface 7 to 10 mm. ( T 4 (T to T 6 -g inch) in diameter. (4) By Fig. 48 1.— Exposure of Mastoid Antrum and Cells (Operation of Schwaktze j:— A, Auricle drawn forward ; B, Mastoid antrum; C, Mastoid Cells ; D, Periosteum drawn aside; E, Sternomas- toid muscle ; F, Temporal muscle ; G, Posterior branch of posterior auricular artery. means of gouge and mallet the bone is removed in thin chips, always keeping the process of excavation in a line parallel with the auditory canal. The amount of bone to be removed varies from a thin lamina up to 1 cm. (j^ inch) before the mastoid cells are reached. (5) As soon as the air-cells are opened, explore with probe — upward, to locate the roof of the mastoid — inward and backward, to locate the posterior fossa of the skull. (6) Break down the intervening wall between the cells, working directly inward for 5 to 8 mm. (f (T to y% inch). Thence work in a slightly upward and forward direction, with curette, until the antrum is reached, at a distance from the surface of 7 to 14 mm. (y 4 ^- to y 9 ^- inch). The excavation should not extend beyond 14 or 15 mm. (y 9 -^ or T¥ inch) from the surface, which is as far as it is safe to go. (7) Carious bone should be removed wherever found, even if it be neces- sary to expose the dura — and whether the roof of the mastoid lie imme- diately beneath the cerebrum; or the inner wall, with the lateral sinus and cerebellum, lie just to the inner side. The dura is displaced with a dural 606 OPERATIONS UPON THE HEAD. separator and the bone is removed with a curette. (8) The interior of the mastoid process must be dealt with according to indications. Pus should be evacuated — granulations removed and cell-walls broken down. In in- flamed diploe, the cancellated structure should be curetted away. In osteitis, curette away softened bone short of harming the labyrinth and facial nerve. The entire external aspect of the mastoid process may be removed to the tip of the process. (9) In completing the operation, pack the cavity left in the mastoid with gauze. Suture the periosteum partially, and the soft parts also in part, leaving room for drainage. Comment. — (i) Where the interior of the mastoid is partly or wholly diploetic, proceed with greater care, using curette or hand gouge. Pass directly inward parallel with auditory canal, for 5 to 8 mm. ( T \ to ^g- inch) — if no air-cells are reached by this time, pass slightly forward, upward and inward to the antrum — but do not go beyond 15 mm. ( T \- inch) from the external surface of the anterior edge of the osseous opening, lest the facial nerve or horizontal semicircular canal be injured. (2) In a mastoid affected with osteosclerosis (from long suppuration or previous disease) the usual landmarks, gotten with a probe as one advances, are not so available. Proceed carefully in the same directions and for the same distances as in the diploetic tissue just mentioned, but working with a chisel and mallet, instead of a hand gouge. Diploetic bone may be met after passing through 7 to 10 mm. (tit t0 tt m ch) of sclerosed bone. Sometimes, though rarely, the antrum may be obliterated by osteosclerosis. (3) Where fistula? exist, these should be exposed and followed up, rather than to make another opening through healthy bone; or the fistulous tracks may be used in conjunction with the ordinary opening. An externally placed fistula is exposed by reflecting the periosteum from the external surface of the mastoid process. An anteriorly placed fistula is exposed by reflecting the periosteum from the posterior wall of the auditory canal. An inferiorly placed fistula is exposed by reflecting the periosteum from the tip of the mastoid process, toward the digastric groove. OPERATION FOR EXPOSING MASTOID ANTRUM AND CELLS, TO- GETHER WITH INTERIOR OF TYMPANUM AND MEATUS, AND THE EXENTERATION OF THE MIDDLE- EAR CAVITIES. THE TYMPANOMASTOID EXENTERATION, OR RADICAL OPERATION, OF SCHWARTZE-STACKE (OR SCHWARTZE-ZAUFAL). Description. — This operation, much more extensive than the last, con- sists in the opening up of the mastoid antrum, mastoid cells, tympanum, and meatus, and of the complete exenteration (evisceration) of the middle-ear cavities. The whole interior of the mastoid antrum, aditus, epitympanum, tympanum, and meatus are thereby converted into a single large and continu- ous cavity — the smooth walls of which are made to heal throughout by epider- mization — the epidermis growing in from the meatus and the edges of the wound. Indicated in empyema, osteitis or osteomyelitis of mastoid process occurring in connection with osteitis of the aditus, epitympanum, tympanum, and meatus; and also in cholesteatomatous collections in those parts. In the following account the description of J. Orne Green is largely followed. Preparation — Position — Landmarks. — Same as in the Antrum Opera- tion (page 604). TYMPANO-MASTOID EXENTERATION. 607 Incisions and Operation. — A. Formation of Skin-flap and Periosteal Flap, and exposure of Operation Site: — -(i) Skin-flap — incision begins 3 mm. ( T 2 g- inch) above the anterior superior insertion of the auricle — passes downward about 3 mm. (y\ inch), posterior to and parallel with the auricle, to the tip of the mastoid process — thence about 12 mm. (yg- inch) backward — thence upward and slightly backward over the posterior aspect of the mastoid to its upper part. (See Fig. 480, B.) The skin over this triangle is dissected off from the remaining soft parts and displaced upward. (2) Partial separation of auricle — dissect off the auricle, without the periosteum, up to the postero-superior margin of the meatus and displace it forward. (3) Periosteal Flap — incise horizontally- backward through the periosteum to bone along the supramastoid crest, from near the meatus to the upper end of the posterior skin incision — and also perpendicularly downward near to meatus. Displace downward the triangular flap of periosteum thus made. Sometimes this order of raising the flaps is reversed, the skin-flap being turned downward and the periosteal flap upward. Hemorrhage is controlled as encountered. B. Extirpation of lining of Superior and Posterior aspects of Osseous Auditorv Meatus — (1) Detach the cartilaginous meatus from the osseous meatus, with periosteal elevator, along its superior and posterior aspects and displace it forward and downward with the auricle. (2) Incise the lining of the meatus along the antero-superior and postero-inferior walls, beginning at the drum-membrane and ending at the free margin — dicsarding the excised triangular portion of periosteum. C. Exposure of Antrum, with Removal of posterior wall of Osseous audi- tory canal, together with Membrana and Malleus — (1) Expose the antrum as in the ordinary antrum operation (q. v.). (2) Chisel out a wedge of bone be- tween the anterior edge of the mastoid opening and the posterior edge of the meatus. As the lower chisel-cuts approach the floor of the meatus and grow deeper, they are directed somewhat upward, finally opening into the osseous auditory canal. (3) Dissect out the fibrous tympanic ring by means of a special knife, and remove the membrana tympani and the malleus, if still present. (4) Pass a bent probe, or special guide, by the tympanic route, through the aditus into the antrum, and, upon this as a guide, chisel away the remaining wedge of bone between the antrum and aditus — making as wide an opening as the position of the facial nerve will allow. D. Extirpation of Epitympanum and Removal of Incus: — (1) Chisel away the outer wall of the epitympanum with a specially curved chisel, exposing the entire epitympanum. (2) Disarticulate the incus from the stapes with a special knife, and remove the incus with forceps. E. Exenteration of entire Mastoid Antrum, Aditus, and Epitympanum: — (1) Chisel away most of the outer cortex of the mastoid and its cancellated portion. (2) So chisel away the posterior wall of the osseous auditory meatus as to leave a ridge of firm bone between mastoid and meatus, sloping outward and downward from the floor of the aditus. The fallopian canal lies inside this ridge, none of which is to be removed on the median side of the tympanic ring. (3) Smooth, by curette or surgical engine, all bony irregularities in the walls of the mastoid, antrum, epitympanum, and roof of tympanum. Espe- ciallv search for caries upon the posterior and interno-inferior aspects of antrum, lateral sinus, and roof of tympanum — exposing the dura if required. (4) Guard the horizontal part of the fallopian canal through the tympanum, 608 OPERATIONS UPON THE HEAD. and the perpendicular part running down from the aditus — also the horizontal semicircular canal in the inner wall of the aditus. F. Splitting of Membranous Meatus and Suturing: — (i) Slit the car- tilaginous meatus throughout its posterior wall, from near the concha out- ward. Two triangular flaps are thus formed, whose corners are to be sutured with catgut to the external tissues, one being stretched upward, the other downward. (2) Suture the auricle back into its former position as far down as the supramastoid crest. (3) Turn the skin-flap and periosteal flap into the cavity made, after cleansing and draining it — and tampon them with gauze. (4) Suture the skin over the lower part of the mastoid. (5) Apply a voluminous protective dressing. G. After-treatment: — Keep evefy crevice of cavity well packed with gauze, until the cavity fills with granulations, and until granulations are covered with epidermis — which epidermis is gotten partly from epidermization of granulations, partly from the skin-flap turned in — and may also be gotten from grafts. Comment. — The middle ear is sometimes first exposed by removing the upper and posterior wall of the osseous canal, and then, by means of a probe in the aditus ad antrum, the aditus and antrum are expcsed. Thus antra lying further forward than usual would be exposed with less danger to the cranial cavity (Stacke). OPERATIONS UPON THE FRONTAL SINUSES. SURGICAL ANATOMY OF THE FRONTAL SINUSES. Description. — Two more or less triangular air-spaces of variable size, with bases anteriorly and apices posteriorly, situated chiefly in antero-inferior portions of frontal bones, on either side of median line, anterior to ethmoidal notches, and separated from each other by an intervening bony septum. They lie at the antero-internal junction of horizontal and vertical portions of frontal bones, immediately internal to internal angular processes, lying above root of nose and more or less beneath inner portions of superciliary ridges. The sinuses begin to develop at two years, but are insignificant in size until after seven years. Muscles in Relation with Frontal Sinuses. — Frontal portion of occipito- frontalis; orbicularis palpebrarum; corrugator supercilii; sometimes the an- terior part of temporal. Arteries in Neighborhood of Frontal Sinuses. — Angular; termination of facial; frontal branch of ophthalmic; supraorbital branch of ophthalmic. Veins in Neighborhood of Frontal Sinuses. — Frontal (emptying into nasal arch and supraorbital); supraorbital (forming, with frontal, the angular vein); angular (becoming the facial); anterior temporal (emptying into common temporal). Nerves in Neighborhood of Frontal Sinuses. — Supraorbital and supratrochlear branches of frontal division of ophthalmic; sometimes the lachrymal branch of ophthalmic. Walls and Their Relations. — (1) Anterior Wall: formed by vertical portion of frontal; extends from supraorbital arch below, a variable distance upward (v. i.); contains diploe; thickness of wall varies from 1 to 6 mm. (from less than Jg- to yV inch) in different places, average being from 2 to 3 mm. (from about yg- to T 2 ¥ inch) ; has, in relation, the soft parts mentioned above (see muscles, arteries, veins, and nerves). (2) Postero-superior Wall GENERAL SURGICAL CONSIDERATIONS. 609 (or roof): forms part of anterior boundary wall of anterior cranial fossa; dense and brittle; has, in relation, the frontal lcbe of brain and the olfactory lobe. (3) Inferior Wall (or floor): (a) Orbital Portion: forms part of roof of orbit; of variable extent; marked by depression for pullev of superior oblique muscle of eye; (b) Nasal Portion: (the part of greater surgical im- portance) ; articulates with anterior ethmoidal cells, nasal process of superior maxillary and nasal bones; infundibulum opens through this portion of inferior surface from frontal sinus into middle meatus of nose. (4) Internal Wall: formed by the antero-posterior septum between the sinuses, which generally deviates from median line. Extent. — (1) Laterally; Average of two hundred cases gave an extension outward from median line of from 2 to 2.8 cm. (};: to i T 2 y inches) — Extremes, from mere slits in nasal part of frontal, to cavities extending from median septum into external angular process of frontal. (2) Vertically; averages, from base to apex above, along its inner border (its highest part), from 1.8 to 2.5 cm. (f-f to 1 inch) — extremes, from nasofrontal suture to frontal eminence. (3) Floor, frequently extends back as far as anterior ethmoidal foramen — rarely back to lesser wing of sphenoid. The size of the frontal sinuses is not determined by neighboring bony prominences and depressions, as they may be largely formed at the expense of the inner table of the skull. It is also often said that one sinus may be absent or rudimentary, the opposite one extending across the median line, but in Lothrop's examination of two hundred and fifty sinuses the orbital portion of the sinus was not once missing. Septum. — A thin bony septum separates the two sinuses, which may deviate slightly or considerably to one side. Septum generally does deviate to one side, and this deviation may amount to 5 mm. (j^ inch) or more. When deviation is very marked, one sinus partly overlaps the other, an im- portant surgical fact. The septum is rarely absent. Perforation of septum is very exceptionally found (once in one hundred and eighty cases). Communication with Nose. — By infundibulum, which passes downward and backward behind the nasal process of superior maxillary bone, through anterior portion of lateral mass of ethmoid, and opens into middle meatus of nose, under anterior end of middle turbinated bone, and on a level with the palpebral fissure. SURFACE FORM AND LANDMARKS. No external guide exists as to the extent of the frontal sinuses — though, generally, the more prominent and larger the supraorbital area, inclusive of the superciliary ridges and nasal eminences, the greater the extent of the sinuses. GENERAL SURGICAL CONSIDERATIONS. It is not safe to make an opening for the exposure of the frontal sinus at any point external to the supraorbital notch — the site at which the sinus is most surely encountered being just above the antero-inferior aspect of the internal angular process of the frontal bone, at a position to one side of the median line sufficiently far to miss the average position of the septum. 39 6io OPERATIONS UPON THE HEAD. INSTRUMENTS USED IN OPERATIONS UPON THE FRONTAL SINUSES. See those mentioned under the Cranio-cerebral and Mastoid regions (pages 557 and 604). EXPOSURE AND DRAINAGE OF THE FRONTAL SINUSES. Description. — The frontal sinus is exposed through its anterior wall — and subsequently drained either through the original wound — or, where possible, through the infundibulum into the middle meatus of the nose, after closing the original wound — or through both routes. Preparation. — Shave eyebrow. Close eyelid and place a sterile pad over it. Position. — Patient supine; shoulders elevated; head extended. Surgeon on side of operation, or behind head. Assistant opposite. Landmarks. — Supraorbital ridge; supraorbital notch (generally detectable through the skin, at the junction of the inner and middle thirds of the supra- orbital ridge) ; sagittal suture (middle line of head) ; nasofrontal suture (de- tectable when soft parts are retracted). Incision. — A horizontal incision is made, beginning to the outer side of the center of the supraorbital ridge, and continued inward to the median line, just above the supraorbital margin (Fig. 482). If more room be needed, this incision may cross the median line, or be curved upward or downward at the median line. (Instead of the horizontal, a vertical incision is some- times made in the median line, between the superciliary ridges — but leaves more of a scar than an incision through the eyebrow. Operation. — (1) The incision passes directly to the bone, through the skin, the fascia, transversely through the frontal portion of the occipito- frontalis, longitudinally between some fibers of the orbicularis palpebrarum and through periosteum to bone. The supraorbital vessels and the supra- orbital and supratrochlear nerves are cut — but the more important branches of the facial nerve to the occipitofrontalis, corrugator supercilii, and orbicu- laris palpebrarum are not cut. (2) The periosteum is elevated and, together with the soft parts, is displaced upward and downward by retractors. (3) The bone having been well exposed, and bleeding controlled, an opening is made with a small trephine or burr (or, less desirably, with chisel and mallet). The opening is placed just above the antero-inferior aspect of the internal angular process of the frontal bone — the inner margin of the opening should be external to the median line, to allow for deviation of the septum — the outer margin should never extend beyond the supraorbital foramen — and the lower margin should be above the nasofrontal suture. (4) After pene- trating the anterior bony wall, with its diploe, the mucous membrane of the frontal sinus is encountered and divided. (5) Pass a probe through the trephine-opening into the sinus — thence through the infundibulum (which first runs downward and backward a short way, then sharply forward and downward) into the middle meatus of the nose, which it enters under the anterior end of the middle turbinated bone. (6) The interior of the cavity, if necessary, may be curetted. The infundibulum may be forcibly dilated. Drainage, at least temporary, is generally indicated — and may be accomplished in one of the following ways — (a) by drawing a rubber tube through the infundibulum into the middle meatus of the nose, with entire closure of the SURGICAL ANATOMY OF THE MAXILLARY SINUSES. 611 external wound — or (b) by combined external drainage through the lower part of the external wound (the upper part of the wound being sutured) and drainage into the middle meatus of the nose by rubber tube or strands of silkworm-gut or silk. It is better to adopt the latter method at first — and the former may be adopted later, when external drainage can be abandoned. The first method alone is preferable if the matter of scarring from a granu- lating wound be of importance. Suture all of the external wound except that portion required for drainage. The transversely divided muscle tissue should be repaired with catgut. Comment. — (') Avoid passing the probe through the ethmoidal cells into the brain. (2) It is well to remove the anterior end of the middle tui- Fig.482.— Exposure of Frontal Sinus by Transverse Supraorbi iai. Incision : — A, Remains of frontal suture ; B, Nasofrontal suture; C, Supraorbital foramen, artery, and nerve; D, Trephine- opening through internal angular process of frontal bone ; E, Orbicularis palpebrarum divided longi- tudinally ; F, Occipitofrontalis divided transversely ; G, Supratrochlear nerve ; H, Periosteum drawn aside ; I, Nasal suture. binated bone, as freer access to and from the infundibulum is thereby given. (3) Where possible, the lips of the wound through the eyebrow should be very carefully approximated and sutured, that the eyebrows may grow out in their proper axes. OPERATIONS UPON THE MAXILLARY SINUSES. SURGICAL ANATOMY OF THE MAXILLARY SINUSES. Description. — A somewhat pyramidal air-cavity generally occupying chief portion of body of superior maxillary bones. Dimensions variable — may be contracted — may extend into malar bone. Small with thick walls in young — larger with thinner walls in old. Communicates by an irregular opening with middle meatus of nose — sometimes more than one communi- cating opening may exist. Infraorbital canal, for infraorbital nerve, pene- trates its superior and anterior walls. Posterior dental canals groove its posterior wall. Bony septa may divide interior of cavity. Floor of antrum uneven from upward projection of roots of teeth. Teeth in contact with 612 OPERATIONS UPON THE HEAD the antrum are the molars, and especially the first and second molars — sometimes the roots of all the teeth of one side may be in contact with floor of antrum of that side. Muscles in Relation. — (i) In Relation with Anterior or Facial Wall; levator labii superioris alaeque nasi; levator labii superioris; levator anguli oris; zygomaticus major; zygomaticus minor; orbicularis oris; buccinator; risorius. (2) In Relation with Posterior or Zygomatic Wall; masseter; temporal; external pterygoid. Arteries in Relation. — (1) In Relation with Anterior Wall; facial of external carotid; transverse facial branch of temporal branch of external carotid. (2) With Posterior Wall; internal maxillary of external carotid; posterior dental (alveolar) of internal maxillary; descending palatine of internal maxillary. (3) With Internal Wall; sphenopalatine of internal maxillary. (4) With Superior Wall; infraorbital of internal maxillary. Veins in Relation. — Correspond with arteries. Nerves in Relation. — (1) In Relation with Anterior Wall; middle supe- rior dental branch of superior maxillary; anterior superior dental branch of superior maxillary; malar branches of facial; infraorbital branches of facial; buccal branches of facial. (2) With Posterior Wall; posterior superior dental branches of superior maxillary; anterior or large palatine nerve from Meckel's ganglion; posterior or small palatine nerve from Meckel's ganglion. (3) With Superior Wall; infraorbital division of superior maxillary (emerges on anterior wall). (4) With Internal Wall; nasopalatine nerve of Meckel's ganglion. Walls and Their Relations. — (1) Base or Internal (Nasal) Wall; pre- sents the very irregular opening of antrum of Highmore, at its posterior part, communicating with middle meatus of nose — and is partly filled in by vertical plate of palate, unciform process of ethmoid, maxillary process of inferior turbinated, part of lachrymal and by mucous membrane. (2) Apex; formed by malar process of superior maxillary. (3) Superior Wall; orbital plate of superior maxillary. (4) Inferior Wall; alveolar ridge. (5) Anterior Wall; facial surface of superior maxillary. (6) Posterior Wall; zygomatic surface of superior maxillary. SURFACE FORM AND LANDMARKS. The antero-external and postero-external walls of the sinus, together with the alveolar ridge, which are the aspects where openings are usually made, are best exposed by upward and backward traction of the upper lip and cheek of that side, sufficiently to obliterate the fold of mucous membrane reflected from cheek to gums. GENERAL SURGICAL CONSIDERATIONS. The maxillary sinus may be approached by enlarging its natural opening into the middle meatus of the nose; by making an opening through its ex- ternal wall; or by going through a socket of one of the molar teeth. The best site for the opening, upon the facial aspect of the bone, is in the interval between the first and second molar teeth, upon the posterior aspect of the malar ridge of the superior maxillary bone, sufficiently high to avoid the roots of the teeth. Above the second molar might be better, but the malar ridge makes it difficult to get high enough up to avoid the root of the tooth OPENING OF MAXILLARY SINUS THROUGH THE FACE. 613 — but this site would be better if the tooth were absent. Where the opening is made through the alveolar ridge the second molar tooth is drawn and the socket penetrated by a burr or drill. INSTRUMENTS USED IN OPERATIONS UPON THE MAXILLARY SINUSES. See those mentioned under the Cranio-cerebral and Mastoid regions (pages 557 and 604). OPENING OF MAXILLARY SINUS (ANTRUM OF HIGHMORE) THROUGH ITS FACIAL ASPECT, ABOVE THE ALVEOLAR MARGIN. Description. — The upper lip and cheek are displaced upward and back- ward, and the antrum entered above the fangs of the molar teeth, preferably Fig. 483.— Exposure; of Maxillary Antri m : — Through the malar ridge of the superior maxilla, above the interval between fust and second molar teeth fangs. in the interval between the first and second molars, upon the postero-external aspect of the malar ridge of the superior maxilla. (See Fig. 483.) Preparation. — Mouth cleansed; sponge so placed as to absorb blood and prevent its reaching throat. Position. — Patient supine; head elevated, resting upon sound side. Surgeon on side of operation. Assistant opposite. Landmarks. — Alveolar margin; first and second molars; malar ridge of superior maxilla. 6l4 OPERATIONS UPON THE HEAD. Incision. — Having retracted upward and backward the upper lip and cheek, a vertical incision is made above the roots of the first and second molars and as nearly over the interspace between them as is accessible, being guided in the placing of the incision by the prominent ridge of the superior maxilla leading up to the malar process. Operation. — (I) Carry the incision through mucous membrane and periosteum to the bone — free the periosteum from the bone by periosteal elevator — retract soft parts anteriorly and posteriorly. (2) Apply a small trephine just above the back part of the root of the first molar and high enough to avoid its fangs, directing it upward, inward, and backward — until it is felt to have entered the cavity. (3) Remove diseased tissue of antrum with scoop or curette. By tilting head forward, irrigation may be made from artificial opening through middle meatus of nose. The opening should be plugged during meals, or a tube with an adjustable plug should be worn. Comment. — (1) Avoid injury to infraorbital vessels and nerves by keeping below and to outer side of infraorbital foramen. (2) Avoid entering the orbit. (3) This operation is probably better than entering through the socket of a tooth — while the latter gives better drainage, the former better protects from entrance of food into the sinus from the mouth. OPENING OF MAXILLARY SINUS (ANTRUM OF HIGHMORE) THROUGH THE SOCKET OF THE SECOND MOLAR TOOTH. Description. — The removal of the tooth alone may accomplish sufficient drainage, as the fangs may open directly into the antrum, save for their thin bony covering, which is easily broken down. If the opening made by the simple withdrawal of the tooth be insufficient (which is usually the case) it may be deepened and enlarged. Preparation and Position. — Same as in last operation. Landmarks. — Second molar tooth. Operation. — Draw second molar tooth. If fangs leave opening com- municating with the antrum, deepen and enlarge it with a bone-drill. If no opening be found, drill through the intervening bone. Drain and treat as in the above operation. Comment. — This operation gives better drainage than the preceding, but is more apt to be contaminated from the mouth, unless the opening be closed artificially by some form of plug, except during irrigation. The loss of the tooth is entailed. The operation is especially indicated when the tooth is already absent. III. THE EYEBALL AND THE ORBIT.* OPERATIONS UPON THE EYEBALL. SURGICAL ANATOMY OF THE ORBIT. Fibrous Tissues of the Orbit. — (1) Orbital periosteum. (2) Fascia ensheathing muscles, vessels, optic and other nerves, and enclosing lobules of fat. Posteriorly, it blends with periosteum (where the fascia is thinner * Only the removal of the eye will be here considered, most of the operations upon the contents of the orbit belonging to the special field of ophthalmology. ENUCLEATION OF THE EYEBALL. 615 and looser). Anteriorly, it is thicker and firmer, accompanying the muscles nearly to the equator of eyeball, where it divides into an anterior lamina, forming a complete investment and passing forward to eyelids, — and a poste- rior lamina, turning backward and covering the hinder third of the globe. (3) Tenon's capsule, a serous membrane (whose layers are separated by Tenon's lymph-space) — surrounding the hinder two-thirds of the eyeball. The visceral layer follows the convexity of the sclerotic, from the ciliary margin of the cornea to entrance of optic nerve, where it is reflected from the eyeball and, becoming the parietal layer, blends with the posterior lamina of the muscle-fascia (v. s.). Anteriorly, Tenon's capsule is continued into the conjunctiva. Posteriorly, it is continued with the subarachnoid space through the sheath of the optic nerve. Tenon's capsule is pierced by the ocular muscles, which are surrounded by sheaths from Tenon's capsule. Muscles of the Orbit. — Recti superior, inferior, external and internal; obliquus oculi superior and inferior; levator palpebral superioris. Arteries of the Orbit. — Ophthalmic and its branches — lachrymal; supraorbital; posterior ethmoidal; anterior ethmoidal; palpebral; frontal; nasal; muscular; anterior ciliary, short ciliary; long ciliary; arteria centralis retinas. Veins of the Orbit. — Superior muscular; anterior and posterior ciliary; anterior and posterior ethmoidal; lachrymal; central vein of retina; — all form superior ophthalmic vein. Inferior muscular and lower posterior ciliary form inferior ophthalmic. Superior and inferior ophthalmic veins unite to form the common ophthalmic vein. Nerves of the Orbit. — Optic; motor oculi; trochlear; lachrymal, frontal and nasal branches of the ophthalmic division of the fifth; ophthalmic (ciliary; ganglion. ENUCLEATION OF THE EYEBALL. Description. — Consists of the removal of the eyeball intact, after incising the conjunctiva, severing the attachment of the ocular muscles to the globe and dividing the optic nerve at its entrance into the eyeball. Indicated chiefly in malignant disease and in extensive injury. Special Instruments Required. — Eye-speculum; toothed fixation for- ceps; strabismus hook; blunt-pointed scissors curved on the flat. Position. — Patient supine; head elevated. Surgeon on side of operation. Assistant opposite. Landmarks. — Reflection of the conjunctiva on to the globe. Operation. — (1) Insert a spring eye-speculum, an arm passing between the globe and each lid, holding the latter out of the way. (2) Catch up the ocular conjunctiva with toothed forceps and snip it with blunt-pointed scissors all around, near to the cornea. (3) Having opened Tenon's capsule, catch up each rectus tendon — generally beginning with the external, then the superior and inferior, ending with the internal — with a strabismus-hook, drawing them forward and dividing them with scissors close to their sclerotic attachment. (4) Press upon the speculum slightly so as to push it behind the equator of the eye, which will cause the ball to start forward. Pass curved scissors backward, on the outer side of and behind the globe, and divide the optic nerve close to the eyeball. Draw the eyeball forward and tut the superior and inferior oblique muscles near the sclerotic — and remove the eye. (5) The ophthalmic artery is immediately clamped and tied. Other 616 OPERATIONS UPON THE HEAD. bleeding vessels are controlled by ligature or by pressure maintained by dressing. Comment. — (I) Where the globe has collapsed, or collapses during the operation, seize it with forceps and dissect it out. (2) In disease it is often indicated to remove all the soft tissues of the orbit, as well as the eye proper. EVISCERATION OF THE EYEBALL. Description. — Consists in the removal of the contents of the eyeball, leaving a stump composed of the tissues of the globe for the better reception of an artificial eye within the original sclerotic. Indicated chiefly in suppura- tion of the eyes and in limited lesions. Special Instruments. — Those given under Enucleation, together with the following in addition — Beer knife; sharp scoop; needle-holder; curved needles; silk; glass globes of various sizes, with globe-introducers. Position and Landmarks. — Same as for Enucleation. Operation. — (1) Introduce eye-speculum as for Enucleation. (2) Steady eye by grasping conjunctiva with fixation forceps. Remove cornea by incising sclerotic with a Beer knife a little outside of the sclero-corneal junction — continuing the incision a short distance into the sclerotic on each side, at the mid-lateral aspects of the opening — to provide for the insertion of the artificial eye and an easy coming together of the wound. Remove from the sclerotic the entire contents of the globe with a scoop, especially from the uveal tract. (3) Control hemorrhage by hot or cold irrigation. Insert a glass eye of appropriate size and appearance — suturing the edges of the wound over it, the sutures passing through the conjunctiva and sclerotic, around the circumference and uniting the lips of the two lateral incisions. EXENTERATION OF THE ORBIT. Description. — Removal of the entire contents of the orbit— indicated chiefly in malignant disease. Position. — As in the preceding operations. Landmarks. — Margin of the orbit; external tarsal ligament. Incision. — An incision is made from the external canthus outward through the external tarsal ligament — to allow the lids to be fully separated. The conjunctiva is cut through down to the bone, around the entire circumference of the bony orbit — to subperiosteal^ expose the cavity of the orbit. Operation. — The soft parts having been thus freed, the periosteum of the orbit is raised by means of an appropriate, curved periosteal elevator. The structures within the orbit are not disturbed separately — but are freed, en masse, within the surrounding periosteum, toward the apex of the orbit. The mass of soft parts is then drawn forward and divided close to the apex of the orbital cavity by means of a pair of curved scissors inserted deeply behind the mass of tissues. The orbital cavity, and especially its apex, is then tamponed firmly. This tamponade may be allowed to remain — or it may be withdrawn and the ophthalmic artery clamped and ligated. The manner of completing the operation will be determined by the special object for which it was performed. Grafting by means of the lids may be at once resorted to — or may be subsequently done from adjacent tissues. The incision through the outer canthus is sutured. EXPOSURE OF IXTRA-ORBITAL AND RETRO-BULBAR STRUCTURES. 617 EXPOSURE OF INTRA-ORBITAL AND RETRO-BULBAR STRUCTURES. KROENLEIN'S OPERATION. Description. —The outer wall of the orbit, consisting of bony and soft parts, is osteoplastically turned outward — and subsequently replaced. The procedure is indicated in retro-bulbar diseases and intra-orbital injuries. Position. — The patient's head, resting upon its back, is turned slightly toward the operator. Landmarks. — External angular process of the frontal bone; margin of the orbit; outline of the malar and zygoma. Fig. 484. — Kroenlein's Operation for the Exposure of the Intra-orbital Structures: — A B, Skin-incision; C and D, Bone sections. Incision. — The skin-incision begins in the temporal region, about 1 cm. (about J inch) above the supra-orbital margin — runs thence downward and forward, with anterior convexity, along the external orbital margin, to the upper edge of the zygoma — where it turns backward and ends over the center of the zygomatic arch. Operation. — Incise through skin, superficial fascia, aponeuroses, muscles, and periosteum to the bone throughout. By means of a curved periosteal elevator the periosteum is then raised from the outer wall of the orbit, carrying with it the intra-orbital structures as far as the spheno-maxillary fissure. The external angular process of the frontal bone is then sawn or chiselled through in the direction indicated by the line A, Fig. 484, the section beginning just above the fronto-malar suture-line. The malar is then divided, from its outer margin into the anterior end of the spheno-maxillary fissure, as indicated 618 OPERATIONS UPON THE HEAD. by the line B, Fig. 484. The bony outer wall of the orbit is now turned out- ward, with the adherent and undisturbed overlying soft parts — thus exposing the structures within the orbit. When the object of the exposure has been accomplished, the composite flap is turned back into position — the bone, if indicated, being sutured through previously drilled holes. Comment. — Eventration may also be performed after exposing the orbital cavity by means of Kroenlein's operation. IV. THE EAR AND EUSTACHIAN TUBE.* SURGICAL ANATOMY OF THE MEMBRANA TYMPANI. Description. — The membrana tympani is an ellipsoidal disc (with slight central depression) about 10 mm. (between y%- and y 7 ^ inch) in length, 9 mm. (between f 5 ^ and y\ inch) in width, and about 0.1 mm. in thickness. It extends obliquely from above downward, its circumference being lodged in the groove of the tympanic ring, at the inner end of the external auditory meatus — forming the boundary between external and middle ear. It con- sists of three layers — the cuticular covering without, the fibrous layer, and the mucous lining within. The handle of the malleus descends downward and backward between its two inner layers and is attached to the membrana tympani a little below its center, at the umbo. The short process of the mal- leus and long process of the incus are visible through the membrana tympani at its upper part. A cone of light is generally visible extending from the umbo (end of manubrium or handle of malleus) downward and forward toward the circumference. INTRODUCTION OF EAR SPECULUM FOR EXAMINATION OF MEM- BRANA TYMPANI. Seat patient upright in chair, with a good natural light (other than sun- light) or artificial illumination available — the patient occupying such a position as to enable the light to be reflected by a head-mirror, worn by the operator, into the auditory canal. Warm and moisten a speculum (Gruber's silver speculum, or other) — grasp the upper free portion of the auricle between the bent knuckles of the index and middle fingers of the left hand — draw the ear upward, backward, and outward (suggested by the letters u, b, o), to straighten the canal — insert the speculum, held lightly between right index and thumb, by twirling it forward and backward in a small arc until it has sunk to the right depth in the proper axis of the external auditory canal, when it is steadied by the left thumb placed upon its rim. It may then be manipulated in different directions to expose all portions of the depth of the auditory canal and the surface of the membrana tympani — noticing par- ticularly the color and position of the drum as to whether normally re- tracted, or abnormally bulging from a collection of fluid in the tympanum. *Only the introduction of the ear-speculum and the eustachian catheter and the punc- ture of the ear-drum will be here considered, most of the operations upon the ear belonging to the special field of Otology. SURGICAL AX ATOMY. 619 PARACENTESIS TYMPANI. Description. — Incision of tympanic membrane for the purpose of drainage of the tympanic cavity and for irrigation. Indicated chiefly in otitis media. Instruments Required. — Ear-speculum; double-edged paracentesis needle. Preparation. — Cleansing of auditory canal by antiseptic irrigation. Position. — Patient sits upright. Surgeon sits opposite the involved ear. Landmarks. — Handle of malleus showing through the membrana tym- pani. Operation. — (1) Insert the ear-speculum — expose the membrana tympani in the field of the speculum — and recognize the handle of the malleus. (2) Incise the ear-drum, making the incision in the posterior half of the mem- brane, between the handle of the malleus and the posterior border of the membrana tympani, and enlarge the opening vertically — taking care not to wound the middle ear. INTRODUCTION OF THE EUSTACHIAN CATHETER. Place the patient in a chair opposite the operator, with head thrown back and supported upon the back of the chair or upon a rest. The surgeon, standing or sitting, places the fingers of his left hand upon the patient's fore- head, while his left thumb pushes the tip of the patient's nose upward (to bring the nostril on a level with the floor of the nose). Warm and lubricate the eustachian catheter, having atomized the nasal cavity with a local anes- thetic, if necessary — push the tip of the catheter, pointing downward, along the floor of the nose, until it touches the posterior wall of the pharynx — turn the point obliquely outward but not quite horizontal — withdraw the instru- ment until the point is felt to glide over the projecting posterior border of the eustachian tube — now turn the tip further outward, until the guide-ring at the posterior end of the catheter points to the outer canthus of the eye of the same side — when the direction of the beak will generally coincide with the axis of the eustachian tube. V. THE NOSE AND NASAL CAVITIES. For operations exposing the Nasal Cavities, see Excisions and Osteoplastic Resections (pages 473, 474). Most of the other operations upon the Nose and Nasal Cavities belong to the special field of Rhinology. VI. THE TONGUE. SURGICAL ANATOMY. Connections of the Tongue. — (1) With Os Hyoides; by hyoglossi and geniohvoglossi muscles, and hyoglossal membrane. (2) With Styloid Process; by styloglossi muscles. (3) With Inferior Maxilla ; by geniohvoglossi muscles. (4) With Pharvnx; by superior constrictors and mucous membrane. (5) With Epiglottis; by median and two lateral glosso-epiglottic folds of mucous membrane. (6) With Soft Palate; by anterior pillars of the fauces {i.e., 620 OPERATIONS UPON THE HEAD. the palatoglossi muscles covered by mucous membrane). (7) With Gums and Floor of Mouth; by mucous membrane and fraenum linguae. Muscles Entering into Formation of Tongue. — (1) Extrinsic Muscles (arising externally and terminating in tongue); styloglossi, hyoglossi, genio- hyoglossi, palatoglossi, pharyngeoglossal portion of superior constrictors, chondroglossi. (2) Intrinsic Muscles (entirely within tongue and forming its chief bulk); superior, transverse, vertical and inferior linguales. Arteries of Tongue. — (1) Lingual (for its surgical anatomy, see Liga- tions) ; dorsalis lingiue branch of Lingual (arises beneath hyoglossus and passes to dorsum of tongue) ; sublingual branch of lingual (arises at anterior border of hyoglossus and passes forward between geniohyoglossus and sub- lingual gland); ranine branch of lingual (arises at anterior border of hvo- glossus and passes forward beneath under surface of tongue). (2) Tonsillar branch of facial; muscular branch of facial to styloglossus. (3) Branches of ascending pharyngeal branch of external carotid. Veins of Tongue. — Correspond with arteries. Nerves of Tongue. — Lingual branch of trifacial (to papilla? of front and sides of tongue) ; lingual branch of glossopharyngeal (to mucous membrane of base and sides and to papilla? circumvallata?) ; hypoglossal (to muscular substance of tongue) ; chorda tympani (to lingualis) ; sympathetic filaments. GENERAL SURGICAL CONSIDERATIONS IN THE REMOVAL OF PART OR THE WHOLE OF THE TONGUE. Indications. — Chiefly removed for malignant growth. Varieties of Operation and Manners of Operating. — (1) Small por- tions of tongue may be excised by a V-shaped, or other, incision. One half of tongue, transversely or longitudinally, may be removed. The entire organ may be excised. (2) The tongue may be removed through the un- altered mouth; through an incision in the neck; through the mouth after splitting the cheek, or temporarily dividing the inferior maxilla; or after excision of the inferior maxilla. (3) It may be removed with or without previous ligation of the lingual arteries, either beneath the hyoglossi or at their origin — and with or without previous tracheotomy — dependent upon the difficulties and circumstances of the case. (4) It may be removed by scissors; by knife; by some form of ecraseur, applied through mouth or neck; by ligature; or by galvano-cautery. General Observations. — Where the involvement is strictly limited to the tongue alone, it should be removed through the mouth. Where the floor of the mouth or the cervical glands, and especially both are involved, the tongue should be removed through the neck, together with the simultaneous removal of all the diseased tissues. Where but a limited portion of the tongue is involved, especially where the involvement is at or toward the anterior end of the organ, a limited portion of tissue, or a transverse or longi- tudinal half may be removed. The natural separation of the two halves of the tongue by a fibrous septum makes it possible to remove one half alone comparatively easy. The tongue is readily split by placing a stout silk retractor in each half, about 2.5 cm. (1 inch) behind the tip and about 1.2 cm. (\ inch) from the median line — while these are drawn in different direc- tions, the tongus is split down the median fibrous raphe with blunt-pointed scalpel or scissors. In removing one half or the entire tongue, it is readily drawn out of the mouth after dividing; the frcenum and mucous membrane EXCISION OF LIMITED PORTIONS OF THE TONGUE. 621 of the floor of the mouth in front, and the anterior pillars of the fauces laterally. The chief difficulties of operating are the narrow working-room and hemor- rhage. A good light is necessary in all cases. In exceptional cases the extraction of two or three of the lower teeth to give fuller working-room is indicated — the teeth being subsequently replaced upon a dental splint. Control of Hemorrhage in Operations upon the Tongue. — The chief hemorrhage is from the lingual arteries, divided in the floor of the mouth, anterior to the hyoglossi (where they are called the ranine) — the position of the cut vessels being the chief difficulty encountered — the hemorrhage being apt to flood the field of operation and get into the air-passages. The head is to be held so as to direct the flow of blood away from the back of the throat. If the mouth be kept well open, the cut arteries are inclined to spurt out of the mouth. By firm pressure applied without upon the neck, between the inferior maxilla and hyoid bone, the stump of the tongue can be brought into view, and the hemorrhage also temporarily arrested by that pressure. The same thing may also be accomplished by hooking a finger or an instru- ment around the base of the stump and drawing it forward. Hemorrhage can be thus temporarily controlled until the vessels can be clamped and tied. If only the anterior half or two-thirds of the tongue is to be removed, a double ligature may be passed through the center of the organ, well behind the growth and temporarily tied on either lateral aspect of the tongue, thereby controlling hemorrhage. Preliminary ligation of the lingual arteries in the neck insures a comparatively dry field, and therefore more thorough work. INSTRUMENTS USED IN REMOVAL OF THE TONGUE. Special mouth-gags; cheek retractors; blunt hooks; tongue depressors; tenacula; tongue forceps; sponges in holders; scalpels, various; dissecting forceps; toothed forceps; artery clamp forceps, long and short; scissors, straight and curved, long and short; aneurism-needles, various; ligature carriers; needles, various; ligatures, silk and chromic gut; sutures, silk and gut; needle-holder; silk-retractors for tongue; curved needle in handle to carry silk-retractors through tongue; volsella; tracheotomy tubes; tampon cannula; thermocautery; Gigli or chain saw; bone-holding forceps; bone- cutting forceps; drill; wire; wire-cutters (in case lower maxilla is to be divided) ; hare-lip pins, sometimes used if cheek be split. EXCISION OF LIMITED PORTIONS OF THE TONGUE. Description. — Limited portions of the tongue are best excised, where possible, by a V-shaped incision. Where it is possible to do so, the resulting edges of the wound are brought together and sutured with silk — otherwise the margins must heal by granulation. This method is generally applicable to limited involvement of the free portion of the tongue. Preparation and Position. — As in the removal of the entire organ. (See the following operation.) Landmarks. — The known attachments of the tongue to the structures of the mouth, and the position of its vessels. Operation. — Gag the mouth open, as in the complete operation. Place a thread retractor on each side of the area to be removed. An assistant, with a retractor in each hand, draws the tongue forward out of the mouth. The 622 OPERATION'S UPON THE HEAD. operator seizes the part to come away with toothed forceps held in his left hand — and taking a knife in his right hand, he enters it behind the center of the growth to be removed, allowing a fairly wide area, and cuts forward on one side of the area. The knife is then entered at the same spot and made to cut its way out on the opposite side of the area, thus removing a V-shaped piece. The bleeding vessels are ligatured with gut, or twisted — and the lips of the incision, if practicable, are sutured, otherwise they are left to granulate. Comment. — For removal of one half of the tongue longitudinally, see the following operation. For removal of one half of the tongue transversely, hemorrhage may be controlled as mentioned under General Surgical Con- siderations — the tongue is then drawn out of the mouth by thread retractors and the anterior portion removed by curved scissors, cutting transversely just anterior to the temporary ligatures. The lingual arteries are then clamped and tied with chromic gut or silk, the smaller ones being twisted, and the stump left to heal by granulation. EXCISION OF THE TONGUE THROUGH THE MOUTH, WITHOUT PRE- LIMINARY LIGATION OF THE LINGUAL ARTERIES. WHITEHEAD'S OPERATION. Description. — The tongue is drawn forward with a double silk retractor — its connections with the floor of the mouth and the anterior pillars of the fauces are divided with scissors — its base is similarly divided transversely — the lingual arteries being seized just before division, divided, clamped, and then twisted. Preparation. — Thorough cleansing of the mouth and teeth. Position. — Patient lies near right edge of table, shoulders and head raised almost to the sitting position (preferably until his head is nearly on a level with the surgeon's axilla) — his head being turned to the right side and slightly forward, so that blood gravitates out of the mouth. A gag is placed in position upon the left side of the mouth and held firmly pressed to the left side of the face. Surgeon stands to the right. Assistant opposite. Landmarks. — The known attachments of the tongue, and the position of its vessels. Operation. — (i) Having gagged the mouth wide open, pass a heavy double ligature through the anterior portion of the tongue, in the median line, and, by means of this retractor, draw the tongue out of the mouth. (See Fig. 485.) (2) Separate the tongue from the floor of the mouth and the anterior pillars of the fauces by cutting boldly through the fraenum linguae, connective tissues and the anterior pillars, while the tongue is drawn well forward by the thread retractors, freeing the tongue first horizontally to a point behind the focus of disease (or as far as practicable) and then dividing it trans- versely across its base — cutting not in little snips, but in decided cuts carried boldly on until near the known position of the lingual arteries upon the lingualis, just to the outer side of the geniohyoglossi — sponging away all blood promptly as the division progresses. (3) Just prior to dividing the Unguals, they are seized, together with the tissue immediately surrounding, by artery forceps and clamped — the tissues including the arteries are then cut — after which the arteries are caught by a second pair of clamp forceps, twisted, and let go. (4) Before finally severing the last attachments of the tongue, pass a stout EXCISION OF THE TONGUE THROUGH THE MOUTH. 623 silk retractor through the glosso-epiglottidean fold, to enable the base of the tongue-stump to be drawn forward in case of hemorrhage or difficulty of respiration. Allow this ligature to remain attached for about twenty-four hours, in case of need. (5) The stum]) receives, at the hands of the author of the operation, an immediate coating of a special antiseptic, styptic varnish. Other surgeons merely dust the stump with some form of powder. Others make no special form of application, merely frequently washing the mouth with an antiseptic solution. Fig.485.— Whitehead's Excision of the Tongue through the Mouth :— A, Tongue partly split in the median raphe and draw n out of the gagged mouth by thread retractors; B, Scissors free- ing the attachments of the tongue from the floor of the mouth ; C, Scissors dividing the anterior pillar of the fauces and base of the tongue ; D, Catch-forceps clamping the lingual artery in situ prior to its division by scissors ; E, Suture through the glosso-epiglottidean fold, placed before its division, for drawing the base of the tongue forward. Comment. — (1) The operation is rapidly and boldly done, until the tongue is removed and the arteries and the stump are in view and in control. (2) The thread retractor in the glosso-epiglottidean fold may be omitted, as the tongue may be hooked forward with a finger or an instrument if necessary. (3) Jacobson first splits the tongue in the middle line and removes each half separately. He also cuts a transverse groove through the side and dorsum of the tongue nearly to the artery, and then tears through with the finger and closed scissors until the artery is reached and clamped. (4) If necessary to remove but one half of the tongue, a thread retractor is placed through the 624 OPERATIONS UPON THE HEAD. tip of the sound side — the tongue is then split through the median fibrous raphe (while the opposite side is held by forceps or another thread retractor) — the connections with the floor of the mouth and the anterior pillars of the fauces are separated on that side alone — and the operation completed as above. (5) Preliminary tracheotomy is not generally done, but may be done if indicated. (6) The lingual arteries may be tied, when exposed in the above way, instead of being merely twisted. EXCISION OF THE TONGUE THROUGH THE MOUTH, AFTER PRE- LIMINARY LIGATION OF THE LINGUAL ARTERIES IN THE NECK. Description. — The two Unguals are first tied in the neck, and the tongue is then removed through the mouth by means of scissors. Preparation, Position, and Landmarks. — As in the preceding opera- tion. Operation. — The two lingual arteries are first tied in the neck, beneath the hyoglossi — precisely as in the simple ligation of those vessels (see Liga- tions, page 38) — and the wounds closed and dressed. The tongue is then removed through the gagged mouth by means of scissors, just as in the White- head operation previously described. Thus comparatively slight hemorrhage occurs — from the dorsalis linguae branch of the lingual and from branches of the facial and ascending pharyngeal of the external carotid. EXCISION OF THE TONGUE BY MEDIAN INCISION THROUGH LOWER LIP, CHIN, AND NECK, WITH OSTEOPLASTIC DIVISION OF INFERIOR MAXILLA. kocher's operation. Description. — This, the more modern form of Kocher's operations for the removal of the tongue, is especially indicated where the growth involves the adjacent intra-oral structures, particularly those rather posteriorly placed, and hence difficult to reach, and where, at the same time, the glandular structures lying along the large cervical vessels are not involved (unless these latter be removed by separate operation) . Preparation. — The teeth, mouth, and pharynx are to be thoroughly cleansed to guard against aspiration pneumonia. Position. — The patient is in the half-sitting position — no preliminary tracheotomy is done — and complete anaesthesia is used. Landmarks. — Median line of lower lip, inferior maxilla, and hyoid bone. Incision. — Carry a median incision through the structures of the lower lip and the structures of the chin down to the bone — thence the incision is prolonged in the median line through the soft structures of the neck to the center of the hyoid bone (Fig. 486, A) . Operation. — Having carried the incision through the soft parts, the vessels are clamped or tied. The inferior maxilla is now sawn through in the middle line by means of a Gigli saw conducted around and behind it, coming out above between two teeth, or through the space made by extracting a central incisor (Fig. 487). It is rather better to divide the jaw obliquely backward in the direction of the involved side, thus keeping the insertions of the genio- hyo-glossi and genio-hyoids of both sides attached to the healthy side — the EXCISION OF TONGUE THROUGH LOWER LIP. 625 bevelling also making subsequent displacement less likely. Previous to division of the bone, drill-holes may be made for subsequent sutures. Whether the muscles attached to the tubercles near the symphysis menu' be exposed so as to leave half of them or all of them attached to one side of the divided bone or not, the two sides of the divided jaw are now firmly retracted to opposite sides by means of toothed retractors. The tongue is drawm well out of the mouth by a thread or special retractor — and displaced to the side opposite to that involved. The mucous membrane of the floor of the mouth is divided posteriorly — under which is exposed the lingual vein, which is ligated as it crosses the side of the hyo-glossus muscle. The lingual nerve, coming forward just under the mucous membrane, is also divided. The hypoglossal nerve is found crossing the outer surface of the genio-glossus. The lingual artery is well in the field, between the hyo-glossus and the genio-hyo-glossus, and can be V Fig. 486. — Lines of Incision for Kocher's Excisions of the Tongue: — A, By median straight incision through lower lip, chin, and neck, with osteoplastic division of inferior maxilla; B, By lateral angular, or curved, incision raising a flap upon the side of the neck. ligated at once or later. The hyo-glossus is divided outside the growth and cauterized. The tongue is drawn forcibly forward and its mucous membrane is divided far back with the actual cautery, away from the growth. The stylo-glossus muscle and the glosso-pharyngeal nerve lying near it are also divided. If the mucous membrane is divided in front of the tonsil, the tonsil, if involved, can be separated by passing a curved, blunt dissector around its outer aspect — thus baring the internal pterygoid muscle. Divide with the cautery as much of the soft palate as is involved. The tensor and levator palati are divided, and the posterior pharyngeal mucous membrane down to the longus colli and in front of the root of the tongue. The tongue is now divided with the cautery where it is normal in structure — and the muscles, nerves, and vessels (previously tied) are divided on the under 40 626 OPERATIONS UPON THE HEAD. surface before entering the new growth — the nerves and muscles of deglutition being left as long as possible. The two halves of the lower jaw are then united by wire sutures introduced through the previously drilled holes. Gauze drainage is established through the posterior end of the opening, just above the hyoid bone. Kocher rubs xeroform into the cut surfaces and, after suturing the median wound, smears the suture line with bismuth paste. Comment. — (i) Damage as little as possible the muscles and nerves of the mouth, tongue, and pharynx. (2) Provide ample escape of wound fluids. (3) Let the patient occupy a half-sitting posture in bed from the time of the operation, during convalescence. (4) Division of the muscles by the actual cautery limits the initial infection of the soft parts at the time of operation. (5) No preliminary tracheotomy is done. (6) If the cervical glands are Fig. 487. — Kocher's Excision of the Tongue by Median Incision through Lower Lip, Chin, and Neck, with Osteoplastic Resection of Inferior .Maxilla: — A, K, Two halves of jaw drawn apart by retractors; C, Divided mucous membrane of mouth; D, Lingual nerve; E, Lingual vein; F, Lingual artery; G, Hypoglossal nerve; H, Hyoglossus muscle; B, Tongue, retracted to non-diseased side; I, Right genio-hyoglossus muscle; J, Left genio-hyo- glossus muscle; L, Genio-hyoid muscle. (Redrawn from Kocher.) involved, they are removed by a subsequent separate operation. (7) Very little hemorrhage should occur — and but limited functional disability, movements usually being possible at once without pain, and swallowing the following dav. The lip wound leaves but little scarring if properly sutured. (8) Non-inter- ference with deglutition is usually accomplished in this operation and is the chief safeguard against deglutition pneumonia. (9) The operation may be done with the patient in Trendelenburg's position. (10) The access to the involved structures is especially full, as far back as the isthmus of the fauces. (ii) In passing in between the genio-hyo-glossi the room given is not so free as in making the bone-section to one side of their attachment. The genio-hyo- glossus, however, is only detached from the jaw (as pictured in the illustration) if adherent upon the involved side, thereby preventing the separation of the two halves of the jaw. The mylo-hyoid is stretched to its limit. EXCISION OF THE TONGUE THROUGH THE NECK. 627 EXCISION OF THE TONGUE, TOGETHER WITH THE CERVICAL AND SUBMAXILLARY GLANDS, BY AN INCISION IN THE NECK, AFTER PRELIMINARY TRACHEOTOMY AND LIGATION OF THE LINGUAL AND FACIAL ARTERIES. KOCHER'S OPERATK >N. Description. — After a preliminary tracheotomy and the ligation of the lingual and facial arteries in the neck, upon both sides, followed by the removal of the cervical and submaxillary glands (and the sublingual, if necessary) of both sides, the tongue is drawn through an incision made through one side of the floor of the mouth, from the wound in the neck, and removed bv division transversely at its base. The preliminary tracheotomy is prefer- ablv done a few days in advance, that the patient may have become accustomed to breathe through the tube at the time of the operation. Thus several distinct operations are done — tracheotomy; ligation of both lingual and both facial arteries at their origin; excision of the cervical and submaxillary, and probablv sublingual, glands; and the removal of the tongue. Preparation. — Thorough cleansing of mouth and teeth. A preliminary tracheotomv done several days in advance of the main operation. Position. — Patient supine, at right edge of table; shoulders elevated; head thrown back and turned to one side; neck prominent. Surgeon on side of operation. Assistant opposite. (The positions of the principals will differ somewhat with the various steps of the complex operation.) Landmarks. — Those of the following operations (q. v.), tracheotomy, ligation of lingual and facial arteries in the neck, excision of submaxillary, sublingual, and cervical glands, together with the following; — the anterior border of the sternomastoid, the hyoid bone, and the anterior belly of the digastric muscle. Incision. — See step No. 3 of the Operation. Operation. — (1) A tracheotomy is first performed in the usual way — and, where possible, several days in advance. (See page 704.) (2) The pharynx is plugged with a sterile sponge attached to a piece of silk — to prevent the ingress of blood into the trachea or esophagus. (3) The incision is now made along the anterior border of the sternomastoid, from the mastoid process to about the center of the muscle — thence transversely forward in the crease between the floor of the mouth and the neck, to the hyoid bone — thence along the anterior belly of the digastric to the symphysis menti. (See Fig. 486.) (4) Having divided skin and subcutaneous fascia, and ligated the subcu- taneous veins, turn back, by dissection, the flap thus marked out, and, dis- placing it upward, suture it to the cheek. (See Fig. 488.) (5) Expose the anterior border of the sternomastoid, as far down as the great cornu of the hyoid bone, also the anterior belly of the digastric muscle — and remove, en masse, all enlarged glands from the upper end of the sternomastoid and from beneath the angle and body of the inferior maxilla (see page 150). The veins are ligated as encountered and the mass of involved glands and connective tissue are raised together, exposing the posterior belly of the digastric and stylohyoid muscles posteriorly. (6) The submaxillary gland is dissected up, working from behind, and removed simultaneously with the cervical glands. (See page 725.) The sublingual gland is similarly removed, if involved. (See page 726.) (7) The facial artery is tied near its origin from the external carotid, as soon as exposed in the process of raising the submaxillary gland (see page 41). The lingual artery is also tied near its origin, before passing under the hyoglossus (see page 39). All veins encountered are ligated. (8) 6a8 OPERATIONS UPON THE HEAD. Steps (3), (4), (5), and (7) are repeated on the opposite side, if the entire tongue is to be removed — and also (6) if the submaxillary and sublingual, as well as the lymphatic glands, be involved. (9) The mylohyoid muscle is now exposed and divided as far as necessary. The mucous membrane is then cut close to and parallel with the inferior maxilla — and the mouth thus Fig. 48S. — Kocher's Excision of Tongue, together with the Cervical and Sub- maxillary. Glands, by a Curved or Angular Lateral Cervical Incision, after Pre- liminary Tracheotomy and Ligation of Lingual and Facial Arteries: — B, Flap raised from neck and stitched to cheek: A, Submaxillary gland being dissected out; C, External jugular vein ligated; D, Internal jugular vein; E, Facial artery ligated near origin from external carotid: H, Hypoglossal nerve crossing hyoglossus muscle; F, External carotid artery; G, Lingual artery, ligated near origin; I, N, Retractors retracting digastric and stylohyoid muscles; O, Ranine vein; J, Scissors, introduced through mouth, cutting base of tongue away from hyoid bone and its remaining attachments; K, Flap of skin, fascia, and platysma; L, Incision in mylohyoid muscle; M, Tongue being drawn through incision in mylo-hyoid muscle. entered. (10) The tongue is seized and drawn through the floor of the mouth and the wound in the neck. While under tension it is cut away from the hyoid bone, by means of blunt scissors introduced through the mouth. The stump is then drawn forward in the mouth and a few remaining arterial twigs EXCISION OF THE TONGUE THROUGH THE NECK. 629 which bleed are twisted. (11) The wound is not sutured — but is allowed to close by granulation, with the freest possible drainage. (12) The tracheot- omy tube remains in until the wound is granulating well — the entrance to the larynx being, in the mean time, plugged to prevent lung infection. Feeding is carried on by the introduction of fluids through an esophageal tube. The mouth is frequently washed with an antiseptic solution. Comment. — If but one half of the tongue is to be removed, an incision is made only upon the corresponding side of the neck — the tongue is then split down its center, from within the mouth, and the diseased half drawn through the wound in the neck and divided at its base by blunt, curved scissors introduced through the mouth. NOTE. Operations upon the Teeth; Hard Palate; Lips; Gums; Soft Palate; and Uvula, will not be separately considered. Operations upon the following structures of the Head will be found under those structures among the Operations of General Surgery, namely, Bones; Joints; Ligaments; Fasciae; Muscles; Arteries; Veins; Lymphatics; Nerves, Plexuses, and Ganglia. CHAPTER II. OPERATIONS UPON THE SPINE AND SPINAL CORD. SURGICAL ANATOMY OF THE SPINE AND SPINAL CORD. Muscles in Relation with the Spine. — (i) Cervical Region: Ante- riorly; rectus capitis amicus major; rectus capitis anticus minor; rectus lateralis; longus colli. Laterally; scalenus anticus, medius and posticus. Posteriorly; trapezius; levator anguli scapula?; rhomboideus minor; serratus posticus superior; splenius capitis; splenius colli; cervicalis ascendens; trans versalis colli; trachelomastoid ; spinalis colli; complexus; biventer cervicis; semispinalis dorsi; semispinalis colli; multifidus spinse; supraspinales; inter- spinales; intertransversales; rectus capitis posticus major; rectus capitis posticus minor; obliquus capitis inferior; obliquus capitis superior. (2) Thoracic Region: Antero-laterally; psoas minor. Postero-laterally; trape- zius; latissimus dorsi; rhomboideus minor; rhomboideus major; serratus posticus superior; serratus posticus inferior; splenius capitis; splenius colli; longissimus dorsi; transversalis colli; trachelomastoid; spinalis dorsi; com- plexus; biventer cervicis; semispinalis dorsi; semispinalis colli; multifidus spinae; rotatores spinas; interspinales; intertransversales; levatores costarum. (3) Lumbar Region: Antero-laterally; crura of diaphragm; psoas magnus; psoas minor. Postero-laterally; latissimus dorsi; serratus posticus inferior; erector spinae; longissimus dorsi; spinalis dorsi; multifidus spina?; inter- spinales; intertransversales; transversalis abdominis; quadratus lumborum. Note — The ligamentum nuchas extends from external occipital protuberance to spinous process of seventh cervical vertebra. The supraspinous ligament is a continuation downward of the ligamentum nuchas, stretching between the spinous processes. Arteries of the Spinal Region. — (I) Arteries in the Neighborhood of the Spine; muscular branches and arteria princeps cervicis of occipital; pre- vertebral branches of ascending pharyngeal; lateral spinal, muscular, anterior spinal, and posterior spinal branches of vertebral; ascending cervical of inferior thyroid; superficial cervical of transversalis colli; muscular, anterior spinal, and profunda cervicis of superior intercostal; muscular and spinal branches from the posterior branches of the intercostals; muscular and spinal branches from the dorsal branches of the lumbar; middle sacral artery from abdominal aorta; lumbar branch from ileo-lumbar; superior and inferior branches from the lateral sacral arteries. (2) Arteries of the Spinal Cord; anterior spinal — from vertebrals, intercostals, lumbar and other arteries (passing to cord along anterior roots); posterior spinal — from vertebrals, intercostals, and other arteries (running just in front of line of attachment of posterior nerve-roots) ; anastomotic chain — formed by branches of posterior spinal running behind line of posterior nerve-roots. Veins of the Spinal Region. — (i) Extra-spinal; anterior spinal plexus (in front of bodies of vertebras, emptying into neighboring veins) ; dorsal spinal plexus (around spinous, articular, transverse, and laminar Drocesses, 630 SURGICAL ANATOMY OF THE SPINE AND SPINAL CORD. 6 3 I emptying into vertebral, dorsal branch of intercostal, lumbar and lateral sacral). (2) Intra -spinal; (a) Meningeal Veins; two anterior longitudinal X. to rectus lateralis '_to rectus antic, minor Anastomosis with hypoglossal Anastomosis with pncumogastrio ,A r . to rectus antic.major. N. to mastoid region. .Qreat auricular n. ■Transverse cervical n. N. to Trapezius, Ang. Scop, and Rhomboid- Supra clavicular n. Supra-acromial n. Phrenic n. N. to levator ang. scap* N. to rhomboid Subscapular n. Subclavicular n. JV. topectoraliQ major. Circumflex n. ^Musculocutaneous n. Internal cutaneous n. Small internal cutaneous fU J>~-z-ii 0L.I ilJjA >— . rtio-nypogastrfc rt. t 3 T^, ^\..Ilic-lngutnal n. ^^si/A V^V_. External cutaneou9 4 T^^V X. Qen ito-cru rain. \v / \f ^L— Anterior crural n. Obturator n. jr. to levator ani. r^v." -V. to obturator int ^ N. to sphincter ant. Coccygeal n. Co.I Superior gluteal n. A*, to pyriformla N. to gemellus super. ,N. lo gemellus Infer. N. to quadratus Small sciatic n. Static n. Fig. 489. — The Relations of the Segments of the Spinal Cord and Their Nerve- roots to the Bodies and Splnes of the Yertebr.e. (Dejerine and Thomas, modified by Starr.) spinal (on each side of posterior surfaces of bodies of vertebrae) connected by transverse branches, into which the venae basis vertebrae open (emptying 632 OPERATIONS UPON THE SPINE AND SPINAL CORD. into posterior longitudinal veins, the vertebral, intercostal, lumbar, and sacral veins); two posterior longitudinal spinal (between posterior wall of spinal canal and dura mater), emptying into anterior longitudinal, dorsal, and spinal veins, (b) Medullary Veins; coming from substance of cord, empty into the venous ring of each vertebra. Nerves of the Spinal Region. — Spinal nerves (emerging through the intervertebral foramina at a considerably lower level than their origin from the cord) ; posterior divisions of the cervical, dorsal, and lumbar nerves ; sympathetic ganglia and nerves. Membranes of the Cord. — (1) Dura Mater; loose, strong, fibrous sheath surrounding the cord — prolonged in tubular form around spinal nerves and cauda equina — separated from spinal canal by lax areolar tissue and plexus of veins which connect its rough external surface to periosteum and liga- ments — extends from dura of brain to second or third sacral vertebra, and thence to base of coccyx as sheath of filum terminale — its smooth inner surface is separated by subdural space from arachnoid and is connected to cord by ligamentum denticulatum (a special development of pia mater) — it sends tubular prolongations around spinal nerves, which merge into their epineurium, each tube being divided into an anterior compartment for anterior nerve-root and posterior compartment for posterior nerve-root. (2) Arachnoid; con- tinuous with cerebral arachnoid, surrounding cord down to second or third sacral vertebra — separated from dura by subdural space — separated from pia mater by subarachnoid tissue (subarachnoidean space, for cerebrospinal fluid) — sends tubular prolongations along nerve-roots — connected to pia by incomplete septum posticum. (3) Pia Mater; formed by two layers, only the outer, stronger layer being continuous with cerebral pia mater — outer and inner layers pass into anterior fissure of cord — only inner layer dips into posterior fissure. Ligamenta denticulata — fibrous bands continuous with pia, attached on either side of cord and externally to dura — not piercing arachnoid but its denticulations receiving tubular sheaths from it — extending from foramen magnum above and continuous with filum terminale below. Linea splendens — a linear thickening on anterior surface of cord. Filum terminale — prolongation of pia-matral covering of cord — attached to lower end of sacrum or first piece of coccyx. Spinal Localization. — The relation of the segments of the spinal cord and their nerve-roots to the bodies and spines of the vertebrae is shown in Fig. 489 — the distribution of the sensory nerves in the skin in Figs. 490, 491 — and the symptoms in cross-lesions of the spinal cord in Figs. 492 to 508. SURFACE FORM AND LANDMARKS OF SPINE AND SPINAL CORD. The spinal cord extends from the upper border of the atlas to the lower part of the body of the first lumbar vertebra, and is thence continued as the ilium terminale to the lower end of the sacrum or the first piece of the coccyx. At birth the cord extends to the third lumbar vertebra. The cervical enlargement of the spinal cord extends from the third cervical to the second dorsal vertebra, and the lumbar enlargement from the ninth to the twelfth dorsal. The anterior nerve-roots emerge from the cord along the antero-lateral fissure, and the posterior nerve-roots along the postero-lateral fissure — and unite near the outer part of the intervertebral foramina. The intrathecal nerve-roots increase in length as they descend. SURGICAL ANATOMY OF THE SPINE AND SPINAL CORD. 6 33 Auriculotemporal 3 V, Great oceipita Lacrimal 1 V Temporomalar 2 V Small occipital C. P Great auricular C. P. Supraclavicular * C. P. Acromial branch Middle branch Circumflex E. P. Interoostohumeral Nerve of Wrisberg B. P. Exterual cutaneous of musculospiial B. P. Internal cutaneous B. P. Musculocutaneous B. P. Median B. P. Ulnar B. P Exterual cutaneous L. P Branches from external popliteal S. P. Musculocutaneous S. P. External saphenous S. P. Anterior tibial S. P. Supra-orbital 1 V. Supratrochlear 1 V. Intratrochlear 1 V. Nasal 1 V. Infra-orbital 2 V. Buccal 3 V. Mental 3 V. Superficial cervical C. P. Sternal branch Anterior branches of intercostal nerves Lateral branches <>f intercostal nerves Iliohypogastric L. P. Porsalis penis of pudic S. P. Ilioinguinal L. P. Genitocrural L. P. Middle cutaneous L. P. Internal cutaneous L. P. Internal saphenous L. P. Fig. 490.— Cutaneous distribution of nerves (after Flower). 634 OPERATIONS UPON THE SPINE AND SPINAL CORD. Great occipital, posterior branch or second cervical Third cervical Posterior branches of spinal nerves Lateral branches of intercostal nerves Iliac branch of ilio-inguinal L. P. Second lumbar Inferior hemorrhoidal of pudic S. P. Superficial perineal of pudic and inferior pudendal of small sciatic S. P. Interior gluteal of small sciatic S. P. Internal cutaneous L. P. Internal saphenous L. P. Auriculotemporal 3 V. Small occipital C. P. Great auricular C. P. Supraclavicular C. P., acromial branch Second dorsal Circumflex B. P. Intercostohumeral Internal cutaneous of niusculospiral B. P. Nerves of Wrisberg B. P. 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The spinous processes of the vertebrae are found in the nuchal, dorso- lumbar, and sacral furrows. The spines of the more central dorsal region overlap each other considerably — those of the lower cervical and upper dorsal but slightly — those of the lower dorsal slightly or not at all — and those of the upper cervical and entire lumbar not at all. The spinous process of the seventh cervical vertebra (vertebra prominens) is generally easily located, and from this the spines of the vertebras above and below are readily found by counting — all the spinous processes being more prominent when the vertebral column is bent forward. Other less accurate methods of locating the spines are sometimes used. When the arms are at the side, the superior angle of the scapula corresponds, generally, to the interval between the first and second dorsal spines (and the upper border of the second rib) ; — the root of the spine of the scapula with the third dorsal spine, or with the interspace between the third and fourth dorsal spines; — and the inferior angle of the scapula with the seventh dorsal spine, or with the interspace between the seventh and eighth (and sometimes with the eighth rib). The twelfth dorsal spine corresponds with the head of the twelfth rib. The third lumbar spine is generally slightly above the umbilicus, — and the fourth lumbar spine is on a level with the highest part of the iliac crests. The approximate relations of the origins of the roots of the spinal nerves to the spinous processes of the vertebrae are, according to R. W. Reid, as follows; — (a) Second Cervical arises opposite the arch of the atlas, — third, from opposite the spine of the axis, — fourth, from opposite the interspace between second and third spines, — fifth, sixth, seventh, and eighth arise opposite the spine of the second cervical vertebra above the intervertebra' foramen of exit of each nerve, (b) First, second, third, fourth, fifth, and sixth Dorsal Nerves arise opposite the spinous processes of the third vertebra above their respective foramina of exit, — seventh, eighth, ninth, tenth, eleventh, and twelfth arise opposite the spines of the fourth vertebra above their respec- tive foramina of exit, (c) Lumbar Nerves arise near the spines of the tenth and eleventh dorsal vertebra?, (d) Sacral Nerves arise between the eleventh dorsal and first lumbar spines. GENERAL SURGICAL CONSIDERATIONS IN OPERATIONS UPON THE SPINE AND SPINAL CORD. I. The General Considerations of the Osteoplastic Resection of the Spine and of Laminectomy, and their Relative Values. — In an osteo- plastic resection of the spine, a composite flap, consisting of skin, fascia, one or more spinous processes, a set or more of corresponding laminae, and con- necting ligaments, is partially excised en masse, with the constituent parts adherent, and temporarily turned backward and upward, hinging upon its own ligaments, thus exposing the portion of cord or spine involved, and is finally dropped back into its normal place at the conclusion of the operation, with practically all of its structures present and in natural relation. The soft parts are at no time detached from the spines, and only partly and tem- porarily detached from the laminae. In the operation of laminectomy, or lamnectomy, as it is variously called, the spinous processes and lamina?, with connecting ligaments, of two or more vertebrae, are completely freed from surrounding structures, excised, and per- manently discarded. Where, as has occasionally been done, the spinous processes and laminae are temporarily preserved in warm normal salt solution SURGICAL CONSIDERATIONS IN OPERATIONS UPON SPINE. 643 and replaced in situ at the end of the operation, the procedure is not, strictly, a laminectomy, but becomes a form of osteoplastic resection without all the good points of the latter done in a typical manner. In performing laminectomy an attempt, at least, should always be made to do the operation subperiosteally, unless there be some pathological con- traindication. Many surgeons, however, never attempt to free the spines and laminae of their periosteum before their excision, and in the majority of cases where it is undertaken it may be safely said that the subperiosteal feature of the operation is carried out so imperfectly as to scarcely amount to a sub- periosteal method at all, so great are the difficulties of preserving that mem- brane in clearing these small and irregular bones. In the osteoplastic resection there is no indication to work along subperiosteal lines. The actual opening in the spine may be of practically the same size and shape in both operations; but the tendency is to form a narrower bony opening in laminectomy, and, of necessity, the field for manipulation is more contracted than in osteoplastic resection, owing to the much nearer approximation of the walls of the wound in the soft parts. As to difficulty of execution, when one has practised both operations equally, no appreciable difference in the difficulty of technique, worthy of a determining consideration, is experienced. It is not open to question that the laminectomy leaves a weaker spine than does an osteoplastic resection, for the latter leaves, practically, an intact spine, while the former leaves a spine minus as many spinous processes and laminae, with their connecting ligaments, as have been cut out. Just how much weaker laminectomy leaves the spine it would be hard to calculate; but it is self-evident that a whole spine is better than part of a spine, even if only one-quarter or one- third of two or three vertebrae have been permanently removed, and although the bone thus represented be replaced by fibrous tissue, or partly fibrous and partly bony. It is known that patients have sometimes not been able to sit upright, or to hold their heads up, after laminectomy, necessitating the wearing of a spinal support for some time. Weighing all considerations involved in the selection of one or the other method of approach, the choice of operation should, in the opinion of the writer, be unquestionably given to the osteoplastic resection, as an altogether more surgical procedure, — saving to the individual, as it does, practically all of his structures, all save one spinous process, — leaving, after union, an almost intact and necessarily stronger spinal column; affording a freer and fuller field for inspection and manipulation at the time of operation; furnishing greater subsequent protection to the spinal cord, and most probably furnishing also greater immediate protection to the cord by reducing, in shutting off the spinal canal, the chances of intraspinal infection in the event of non-primary healing. To summarize, it is safe to say that no operator who is equally skilful in performing an osteoplastic resection and a laminectomy will hesitate in choosing the former as the best procedure in the vast majority of cases; and that if, on the other hand, he does, it is likely he is only familiar with the older, cruder form of exposure with crushing and chiselling instruments and un- familiar with, or unskilled in, the more modern technics. Whenever laminec- tomy is elected in preference to osteoplastic resection, there being no special indication for the former, the only partial justification there would seem to be for the performing of laminectomy would be that it be done subperiosteally, and, as already mentioned, there are those who feel that a subperiosteal laminec- tomy is very rarely accomplished, even when definitelv undertaken by the skilful. 644 OPERATIONS UPON THE SPINE AND SPINAL CORD. Before considering and illustrating the operations of osteoplastic resection and laminectomy in detail, there are aspects of the technique which are common to both operations and of a fundamental importance to their performance, and which will, therefore, be first mentioned and pictured as briefly as con- sistent with their understanding. II. The Features Common to both Operations. — (i) Preparation of Operation-site. — The region is shaved, whether visible hair be present or not, and is made aseptic by the special antiseptic measures of the individual oper- ator, the patient coming to the table with the part protected by dressings applied after the preliminary preparation, the final preparation being made at the time of operation. (2) Position of Patient, Surgeon, and Assistants. — The patient lies upon a specially narrow table, in the semiprone position, as nearly upon the front of the chest as the conditions of anesthesia will allow, being supported by cushions. The surgeon stands at the patient's back throughout most of the operation, passing to the opposite side of the table and leaning over the chest whenever it is more convenient to manipulate from that side. Two assistants are useful — one at the surgeon's side, and another opposite him, on the other side of the table, bending over the patient. (S) Anesthesia. — Nitrous oxide and ether, unless contraindicated for special reasons. (4) Instruments and Accessories. — Heavy cartilage knife and medium knife; artery-clamp forceps; dissecting forceps; two pairs of special retractors with teeth blunt and long enough to reach the bottom of the wound; chisel about two centimeters (about three-quarters of an inch) wide; Doyen saw; Gigli saw; probe with thin, flat end; curved, heavy scissors for interspinous and interlaminous ligaments; small angular scissors for incising membranes of the cord; two small, toothed forceps for membranes; large and small needle- holders; fine, fully curved needles for membranes; heavy curved needles for buried muscle sutures; straight needles for skin; plain fine catgut for mem- branes; twenty-day chromic gut for buried muscle sutures; silkworm gut, or silk, for skin sutures; horse-hair or catgut for intradural drainage; tubing or gauze for extraspinal drainage; gauze for packing wound; hot normal salt solution for hemorrhage. (5) Landmarks of Operation. — The spinous processes corresponding with the lamina? to be removed should, if possible, be very clearly located before beginning the incision. This can always be done in backs of medium thick- ness, and generally in moderately thick backs upon deep pressure. The trans- verse processes in the dorsal and lumbar regions and the articular processes in the cervical region should also be located, in the case of the osteoplastic resection, if it be possible; but often cannot be determined until after the skin and fascia have been incised in the operation last mentioned. (6) Manner of Incising Muscles and Aponeuroses. — While this is not a major point, attention to the principle involved will insure a more cleanly cut section in the case of osteoplastic resection, and a more complete clearing of soft parts from the spines in laminectomy than if the principle were not observed. One is familiar with the fact that the spines of a feather may be more readily and cleanly stripped from the quill by cutting from tip to base than by cutting in the opposite direction. Therefore, will the section of muscles and aponeuroses be more cleanly and evenly made if made by a stout knife wielded in such a manner as to cut into, or toward, the more acute angle formed by the attachment of the muscular or aponeurotic fibers to the parts of the vertebral column, rather than toward the more obtuse angle; SURGICAL CONSIDERATIONS IN OPERATIONS UPON SPINE. 645 and especially is this the case the nearer the spinous processes one approaches. This will sometimes necessitate cutting toward the head, sometimes toward the sacrum, according to the direction of the fibers at the site of operation, and may require stepping to the opposite side of the table. Practically, two \ m -■ Fig. 509. — Muscles of Dorsal Region of Back, showing that Muscular axd Aponeurotic Fibers are more Cleanly Divided by Cutting t< ward the more Acute Angle formed by their Attachment to Bony Structures. (Modified from Gray's "Anat- omy.") changes in the direction of the incision on either side of the median line will fulfil these indications. It will, therefore, be seen that it is not advised to cut from skin to bone or even from fascia to bone, at one stroke, but rather with three,— one through skin and fascia and two through the musculo-aponeurotic 6 4 6 OPERATIONS UPON THE SPINE AND SPINAL CORD. structures, — retracting between each incision, such a procedure furnishing a wound with less raggedly cut walls (Fig. 509). (7) Manner of Clearing Soft Parts from Spines and Lamina;. — This, as usually done, is accomplished by the combined use of cartilage knife, perios- teal elevator, and raspatory, with more or less satisfactory result. The clean- ing of the bones may, however, be much more thoroughly done, and by a single instrument, by using an ordinary chisel. When the incisions have been carried fully to the bones, a knife is no longer necessary. Through the incision made by the knife, a chisel (about two centimeters, or about three-quarters of an inch, wide) is carried directly to the depth of the wound, guided, if necessary, by the surgeon's left index-finger, and so directed that its bevelled edge will be turned away from the soft parts to be pried from the bones. In osteoplastic resections the blade of the chisel rests against the transverse proc- esses in the dorsal and lumbar regions, and against the articular processes, Fig. 510. — Dorsal Vertebra, showing results of Incisions begun at Relatively Corresponding Sites and passing through Lamina in Different Directions: — A, Proper section, cutting lamina at right angle to its surface and entering spinal canal; B, Improper section passing through lamina parallel with general direction of spinous process and entering pedicle of vertebra and passing on into body. (Modified from Quain's "Anatomy."; partly covered by muscles, in the cervical region, and, from these as fulcra, the soft parts are levered off toward the spines (Fig. 515, D). In a laminec- tomy the chisel-blade rests against the spinous processes, and from these as fulcra the soft parts are pried out of the bony groove toward the transverse processes in the dorsal and lumbar regions, and articular processes in the cervical (Fig. 519, C). This use of the chisel is exceedingly satisfactory, its sharp edge easily and thoroughly removing all the soft parts, and probably leaving a cleaner bony bed for the saw than is accomplished in any other way. This result is not so well secured if the bevel of the chisel is turned toward the parts to be removed. (8) Manner of Dividing the Lamina?. — This step, in either operation, is of paramount importance, and the manner of its performance, as far as the actual making of the saw-cut is concerned, is the same, whether the operation be SURGICAL CONSIDERATIONS IN OPERATIONS UPON SPINE. 647 osteoplastic resection or laminectomy. And the principle is also the same, as far as the direction of the section is concerned, no matter with what form of instrument the division of bone be made. This important principle is that the instrument should have its edge placed upon the lamina? at or a little to the outer side of their center, and be made to cut its way through the laminae strictly at a right angle to the general direction of their surfaces (Fig. 510, A). Even if the edge of the bone-cutting instrument enter in about the same site as just described, and the section be made, as so often done by beginners, parallel with the general direction of the spinous processes, the chances are that the section wall pass on into the solid articular processes and pedicles, and, if continued, on into the bodies of the vertebrae (Fig. 510, B). The writer has observed the marked tendency to this serious error upon the part of students, who really often do not appreciate their difficulty until it is pointed out to them upon the skeleton. The error, once made, is hard to correct; it. is absolutely impossible to go ahead upon that straight line; it is hard to start a new saw-cut, and often, much chagrined, one is at a loss to know what to do and is tempted to chisel his way through. It is better, however, to perse- vere with the saw until the groove of a new cut is made in the right direction. (9) Instrument for Making the Bone-sections. — Doyen's saw, in the judg- ment of the writer, is the instrument, par excellence, for all bone-sections which are necessary in exposing the spinal cord and canal. It is useless to more than mention the many means that have been resorted, to to divide the parts of the vertebrae, such as excision of the spines with bone-pliers, followed by cutting away the laminae with bone-cutting forceps, or sawing them off with Gigli or chain saw; dividing the laminae directly by bone-cutting forceps, one blade of which has been thrust through an interlaminous ligament; chiselling through the laminae in parallel lines (at the cost of much jarring and irregular division) ; the use of small trephine-openings, the intervening laminae being cut away, and the use of the Hey saw. Doyen's saw is, practically, a Hey's saw with an adjustable guard (Fig. 419). (10) Hartley's Preliminary Excision of the Spinous Process immediately above the Flap in Osteoplastic Resection of the Spine. — While this procedure is not common to both osteoplastic resection and laminectomy, and conse- quently does not strictly come under this division of the subject, yet it is a fun- damental feature of the osteoplastic resection, and its general principles will, therefore, be briefly described here. It is difficult to see how an osteoplastic resection is possible without first removing the spine immediately above the flap to be turned back. Most markedly in the dorsal region, and even in the cervical and lumbar regions, will any lower spine quickly become interlocked with the one just above if an attempt be made to turn it backward and upward. So that without the preliminary excision of the spine above, the flap below can only be turned backward and upward by main force, and often a con- siderable degree of force is necessary, during the exercise of which bony por- tions of contiguous vertebrae may be broken, or other damage done. This preliminary step to the main operation may, therefore, be regarded not only as a most useful feature, but almost as a sine qua non of the operation as a whole. The manner of its execution will be described more in detail under the osteoplastic resection. (11) Control of Hemorrhage. — The three stages at which hemorrhage is apt to be encountered are: After making the skin and fascial wound; during the incision of the muscles of the back; and after opening the spinal canal, in removing or incising the vascular fatty areolar tissue from around the mem- branes. Hemorrhage from visible vessels encountered prior to reaching the 6 4 8 OPERATIONS UPON THE SPINE AND SPINAL CORD. spine should be controlled by artery-clamp forceps, followed by ligature or torsion. General oozing and hemorrhage from undetectable sources (which form the chief bleeding) should be arrested by gauze packing, or by flushing with hot normal salt solution, and by alternately working upon the two sides of the wound. Intradural bleeding from the vascular fatty areolar tissue surrounding the cord, and which is chiefly venous, should be stopped by pressure with gauze held in forceps. Fig. 511. — Lines of Skin Incisions in Relation to Underlying Bones in Osteo- plastic Resection* and in Laminectomy : — A, Line to remove seventh dorsal spine in Hartley's preliminary operation of excising the spinous process of the vertebra immediately above those forming part of the osteoplastic flap; B, modified U-shaped incision outlining the osteoplastic flap for turning back the eighth and ninth dorsal spines and lamina;; C, line of incision for laminectomy of third, fourth, and fifth dorsal spines and lamina;. (Drawn from the skeleton.) OSTEOPLASTIC RESECTION OF THE SPINE. Description. — See page 642, above. Preparation. — See page 644, above. Position. — See page 644, above. Landmarks. — See page 644, above. Incision. — See page 652, below. Operation. — Two distinct operative steps are here undertaken, — the pre- liminary excision of the spinous process above the flap, and the formation OSTEOPLASTIC RESECTION OF THE SPINE. 649 and turning-back of the osteoplastic flap. The nature of the operation has been briefly described under General Considerations. (A) Preliminary Excision of the Spinous Process Immediately Above the Osteoplastic Flap (Hartley's Operation). — This preliminary operation may be considered under the following headings: Incision; Exposure of Spinous Process; Severing of Supra- and Inter-spinous Ligaments; Excision of Spine; Temporary Packing of Preliminary Wound; Final Suturing of Preliminary Wound. Fig. 512. — Osteoplastic Resection or the Spine; Hartley's Preliminary Operation for Excising the Spine of the Vertebra Immediately above the Flap: — A, A, Retractors in the wound, also serving as protectors of soft parts; B, H, Gigli saw in position for excising the entire spinous process. (Drawn from cadaveric operation.) Note: — The subperiosteal method is not shown here. (1) Incision. — A vertical incision is made directly in the median line; its center over the spinous process to be excised, and extending in length from the tip, or near the tip, of the spine above to the tip, or near the tip, of the spine below (Fig. 511, A, and Fig. 514, B). (2) Exposure of the Spinous Process. — The above incision is carried through skin and fascia directly onto the spinous process mentioned. The lips of the wound are then well retracted, and the spine in question is exposed fully to its base by prying away the overlying and closely attached soft parts by means of a chisel used against the spine as a fulcrum, in the special manner described 650 OPERATIONS UPON THE SPINE AND SPINAL CORD. under General Considerations. This freeing having been accomplished, the soft parts are strongly drawn aside by means of retractors, which also serve the part of protectors of the soft parts during the use of the saw (Fig. 512, A, A). A subperiosteal exposure of the spine should be attempted. (3) Severing of Supra- and fiiler-spiiious Ligaments. — These ligaments are now to be divided, both in order to sever this spine from the one below and to prepare a passage for the Gigli saw. This division of ligaments may be made with a knife, but can be better and more readily accomplished by means of curved scissors whose concavity is held upward. Having passed through the supraspinous ligament, the inter-spinous ligament is divided down to the ligamenta subflava. The spinal canal should not be opened in this procedure. (4) Excision of the Spinous Process. — A passageway having been thus Fig. 513. — Hartley's Method or Preliminarily Excising the Spinous Process Imme- diately ABOVE THE LAMIN/E TO BE TEMPORARILY TURNED BACK IN OSTEOPLASTIC RESECTION OF the Spinal Column. The use of bone-cutting pliers is here shown. provided, a Gigli saw is carried deeply down to the very base of this spinous process and the entire process removed (Fig. 512, B, B). Care is exercised to avoid making but a partial excision, as the remaining stump may interfere with the turning back of the flap almost as much as though the entire spine were in situ. Some operators cut the spine off with bone-cutting forceps (Fig. 513); but the use of bone-cutting pliers here, as in many other instances, is unsurgical, removing, as they do, by a crude process of crushing, a part of bone which is much more cleanly and less traumatically cut away by a Gigli or other form of saw. (5) Temporary Packing of the Preliminary Wound. — The spine of bone having been removed, the preliminary operation is for the time being ended. The further use of this wound will be described in connection with the turning back of the osteoplastic flap. Some operators here permanently suture up OSTEOPLASTIC RESECTION OF THE SPINE. 651 the wound left by the excision of the spinous process; but it is distinctly best not to do so, as will be evident farther on. This wound should be tightly packed with gauze and temporarily left alone. (6) Final Suturing of the Preliminary Wound. — At the conclusion of the entire operation the preliminary wound is sutured upon the same general Fig. 514. — Region of the Spinal Column and Cord: — A, Position for incision in lami- nectomy of fourth, fifth, and sixth cervical vertebras; B, Position for incision in Hartley's pre- liminary excision of a spinous process (of sixth dorsal vertebra) preceding osteoplastic resection; C, Position of incision in an osteoplastic resection of seventh, eighth, and ninth dorsal vertebras; D, Lumbar puncture between the fourth and fifth lumbar laminas, for spinal analgesia. principles to be described for the main wound, namely, buried chromic gut sutures to bring the muscle and aponeurotic structures together in the space formerly occupied by the now excised spinous process, and silkworm-gut, or silk, for the skin wound, no drainage being used (Fig. 518, A, A). (B) The Formation and Turning Back of the Osteoplastic Flap. — This, the 652 OPERATIONS UPON THE SPINE AND SPINAL CORD. main operation, will be considered under the following divisions: Incision; Division of Muscles and Aponeurosis; Freeing of Laminae Preparatory to their Division; Division of Laminae and Ligamenta Subflava; Division of Supraspinous, Interspinous, and Interlaminous Ligaments; Separation and Turning Back of Osteoplastic Flap; Freeing of Spinal Cord from Extradural Fatty Areolar Tissue and Control of Intraspinal Hemorrhage; Opening of Membranes of Cord; Manner of Dealing with Incised Membranes; Reposition of Cutaneomusculo-osseous Flap; Deep Buried Suturing of Muscles and Aponeurosis; Skin and Fascial Suturing; Provision for Drainage when Indi- cated; After-treatment; Comment. (i) Incision. — A modified U-shaped incision is used. This incision out- lines the two sides and lower limit of the composite flap of skin-muscle-aponeu- rosis-bone-and-ligament to be temporarily turned back (Fig. 514, C). Its two strictly vertical limbs. begin over the lamina' of the vertebra whose spine is to be excised, commencing to the outer side of its vertical center, near the root of the transverse process in the dorsal and lumbar regions, and near the base of the articular process in the cervical vertebras, and extend, on both sides, downward in straight lines, parallel with the tips of the spinous processes, until opposite the tip of the last spine to be included in the resection; here the incisions broadly curve toward the median line, meeting midway between the tip of the spinous process just mentioned and the tip of the spinous process next below. It is very essential that this broad curve should be given to the lower end of the incision rather than that a narrow contracted curve be made, much of the ease of subsequent manipulations depending thereon. For the purpose, solely, of providing a greater influx of blood into the base of the semi- detached flap of skin-muscle-and-bone, a slightly outward curve may be given to the upper ends of the vertical portions of the U-shaped incision (Fig. 511, B). These curves, however, are awkward if the limbs of the incision have to be extended upward. It might be asked how the bases of the trans- verse processes of the dorsal and lumbar vertebra; and the bases of the cervical articular processes may be recognized prior to the skin-incision; in reply to which it may be said that the tips of these processes themselves (transverse and articular) may generally be felt upon firm pressure made upon backs of medium thickness, and, having recognized the tips of these processes, their corresponding bases lie approximately midway between their tips and the median line formed by the apices of the spinous processes. Where the tips of the transverse processes of the dorsal and lumbar vertebrae and tips of the articular processes of the cervical vertebrae cannot be recognized by palpation at all, it may be stated that the tips of the transverse processes of the dorsal vertebrae lie, in the average skeleton, about 3 to 3.5 centimeters (one and one-fourth to one and three-eighth inches) from the tips of the dorsal spines, the tips of the lumbar transverse processes about four to five centimeters (one and five-eighth to two inches) from the tips of the lumbar spines, and the tips of the cervical articular processes about three centimeters (one and one-fourth inches) from the centers of the cervical bifid spines. (2) Division of the Muscles and Aponeuroses. — The direction of the incision through the layers of muscles and aponeuroses at the different layers, and the reasons therefor, have been given above under General Considerations (page 644). The incision through skin and fascia will, upon retraction, have exposed muscle or aponeurosis, according to the site of operation. The margins of the skin and fascial wound having been retracted and hemorrhage controlled, the muscular and aponeurotic layers in view are incised in a general direction which will correspond with the acuter of the two angles which their component OSTEOPLASTIC RESECTION OF THE SPINE. 653 fibers make with the spine, and the layers below similarly incised. Imme- diately prior to deepening the muscle incision down to the bone, it is advisable to satisfy one's self, by means of a finger introduced into the wound, that the vertical limbs of the U-shaped incision are falling well within the bases of the transverse processes in the dorsal and lumbar regions and within the tips of the articular processes in the cervical region. This precaution will insure the coming of the incision down upon the spinal column over the laminae, which will make the clearing of the laminae correspondingly easy. Fig. 515. — Osteoplastic Resection of the Spine: — A, Position of dorsal spines; B, Wound of Hartley's preliminary excision of spinous process immediately above flap; C, C, C, C, Retractors of main wound; D, Chisel, against transverse processes as fulcra, in act of prying soft parts from laminar, E, Lamina; F, Interlaminous ligament (ligamentum subflavum); G, Doyen's saw in act of completing section through lamina? and interlaminous ligaments. (Drawn from cadaveric operation.) (3) JPreeing the Lamina Preparatory to their Division. — The gauze packing is now removed from that side of the U which was first incised and packed, by which time the hemorrhage, which is usually rather free, has ceased. While instrumental retraction should be practised during the latter stage of the freeing of the laminae, it is not necessary, and is certainly better omitted during the beginning of the freeing, owing to the small amount of room in the wound for finger and chisel. At the stage when retractors are used, they should have blunt hooks, to avoid wounding the fingers of operator and assist- ants, which are also in the wound; and they should be long enough to reach to the bottom of the incision. Proceeding, therefore, at first without retractors, 654 OPERATIONS UPON THE SPINE AND SPINAL CORD. the left index is introduced into the wound until its tip is in contact with the laminae. An ordinary chisel, as mentioned in the Introduction, is now inserted alongside of the already introduced finger, with its edge parallel with the direction of the spines and with the bevel turned away from the parts to be pried from the laminae, in the manner already described. A path for the Doyen saw is thus made over those laminae which are to be temporarily turned back, — the chisel being used as a lever, — braced against the transverse proc- esses in the dorsal region, against the articular and transverse processes in the lumbar region, and against the articular processes in the cervical region, and, with these as fulcra, is made to pry the overlying soft parts from the bony groove formed by the laminae and interlaminous ligaments (Fig. 515, D). While the major portion of this clearing of the saw-bed can be accomplished by manipulating the chisel from the aspect of the transverse and articular processes toward the base of the spines, a still more thorough completion of the clearing can be secured by withdrawing the chisel, turning it around (so that the bevel is toward the transverse processes), and also using it against the spines, covered by their soft parts, as fulcra, while prying away from the laminae those soft parts lying nearer the transverse and articular processes. This manipulation is shown in Fig. 519, C, where the principle is used in the laminectomy operation. Not only should the special laminae and inter- laminous ligaments involved in the resection be completely cleared of oyerlying soft parts, but the lower half of the laminae above and the upper half of the laminae below these should also be freed, as it will be necessary for them to accommodate the end of the saw in its excursions. This additional clearing is shown in Fig. 515. When the saw-bed upon one side has been thus pre- pared, it is firmly packed with gauze, to control bleeding, while the opposite side is being similarly prepared and packed. (4) Division of Lamina: and Ligamenta Subflava. — The edges of each of the vertical limbs of the wound should be retracted, one at a time, by four special retractors with extra-long blunt teeth, the wound presenting a rec- tangular shape (Fig. 515, C, C, C, and a small unlettered retractor). The guard of the Doyen saw is set at ten millimeters (about seven-sixteenths of an inch), which will give a sufficient cutting-edge to pass completely through the laminae at any portion of the spine, provided the section be made well within the laminae proper, and at a right angle to their surface. With the guard thus set it is simply impossible to wound the cord (the cord and spine being normal), not that the bone is here ten millimeters thick, but because the saw will bind after traversing the bone part of the way. As a matter of fact, the guard may be entirely dispensed with ; though under such circumstances care is necessary, and the saw must be checked immediately upon the sense of lost, or lessening, resistance, as the last thickness of the laminae is encountered. ( )ne has frequently thus used the saw upon the cadaver without other than the most ordinary precautions, and has never seen injury done in such cases; nor has he but once ever seen the cord injured by a student during the roughest manipulation, independently of the form of instrument used for the bone division, so securely is the cord ordinarily protected by its position. The saw, protected by the guard at ten millimeters, should be used until it has cut its way completely through and is stopped by the shoulder of the guard. The sweep of the saw at each stroke should be as full as the length of the wound will allow; and the general cutting-edge of the saw should be held as level as circumstances will permit, that the bone-section may be made of equal depth throughout as great a length of the wound as can be reached in one position of the saw. It is usually impossible to complete the section of one side with OSTEOPLASTIC RESECTION OF THE SPINE. 655 the saw in one position, owing to the shape and position of the handle of the saw, as the end of the saw nearer the handle will not travel the full length of the wound quite as satisfactorily as the distal end. Fig. 515, G, illustrates this principle. The surgeon, therefore, standing at the patient's back, intro- duces the saw first into one side and then into the other, using the instrument from below upward and sawing through the lower half of the laminae above those to be turned back, as well as through as many of the laminae to be resected as the teeth of the saw will engage themselves in. When division of the upper Fig. 516. — Osteoplastic Resection of Spine: — A, A, A, A, Retractors in main wound; B, Surgeon's left index-finger introduced into preliminary wound to aid in bending back of flap; C, Curved scissors cutting interspinous and interlaminous ligaments; D, Chisel introduced into saw-cut and supported against transverse processes as fulcra, prying out osteoplastic flap; E, Opposite saw-cut, the flap being levered out. (Drawn from cadaveric operation.) parts of both sides has been made, the surgeon, unless ambidextrous, must walk around the table, lean over the thorax of the patient (in his semiprone position), and, sawing now from above downward, complete the section of those laminae to be temporarily turned back, as well as of one-half of the laminae next below. The depth of the bony section may be tested from time to time by means of the flat end of a specially thin probe. This division of one-half of both the laminae above and below those to be temporarily displaced is only 656 OPERATIONS UPON THE SPINE AND SPINAL CORD. necessary because unavoidable, as the saw-blade cannot be carried abruptly up to the limit of one lamina and completely divide it without also at least partly dividing a portion of the contiguous lamina (Fig. 515, E). But no practical harm is done thereby, as only a very small proportion of these two sets of laminae is divided by the very fine blade of the saw, and must soon solidify. The ligamenta subflava are also divided by the saw (Fig. 515, F). (5) Division of the Supraspinous, Inter spinous, and Interlaminous Liga- ments. — The lowest one of the spines in the osteoplastic flap, with its corre- sponding laminae, is now to be severed from the corresponding intact structures next below, involving the division of the above-mentioned ligaments. These ligaments may be divided with a knife held sidewise, but are more satisfactorily divided by a pair of curved scissors held with their concavity backward (Fig. 516, C). The process of division is aided by grasping the composite flap to be displaced and lifting the lowest spine away from its neighbor next below, thus giving the scissors more room for dividing the V-shaped ligamentous structure formed by the supraspinous and interspinous ligaments posteriorly and the ligamenta subflava to either side. (6) Separation and Turning Back of the Osteoplastic Flap. — The detach- ment or loosening of the resected portion of the spinal column is best accom- plished by means of the same chisel used in clearing the soft parts from the bones, and held in the same way, that is, with the non-bevelled edge toward the part to be pried out. Preparatory to thus using the chisel as a lever, the edges of one of the vertical limbs of the wound are retracted by the four special retractors mentioned above (Fig. 516, A, A, A, and a small unlettered retractor), the parts sponged dry with gauze, and the saw-cut brought well into view. The surgeon's left index-finger should be introduced into the pre- liminary wound through which the spinous process has been removed (Fig. 516, B), carried down to its sawn-off end and adjacent interlaminous ligaments, and held there until the composite flap has been pried out of its site, the tip of the finger greatly aiding in this manoeuvre and in determining the progress of the elevation. The chisel is placed in position, with its bevelled side against a transverse process (in the dorsal or lumbar region) or against an articular process in the cervical region, and its edge, with non-bevelled surface toward the spines, engaged in the saw-cut (Fig. 516, D). The composite mass is seized between the surgeon's left thumb and index and steadied and gently drawn away during the prying-out process. Ordinarily, a single, light, down- ward pressure of the handle of the chisel will suffice to start the composite flap from its normal site, after which the entire flap can be readily turned back. This is always so if the section of bones and ligaments haye been previously made complete, which should invariably be the case, and verified by sounding along the entire line of section with the flat end of a thin probe. Should the flap not readily, and without force, start backward, it argues that the section has not been fully made; and there is no alternative but to lay down the chisel and complete the division of bone with the Doyen saw, or of the ligaments holding the last spine and laminae with scissors, as may be indicated, before going on with the levering-out process. As soon as the section is felt to be started from its bed sufficiently to get the end of the finger under the tip of the lowest one of the spinous processes, all instruments may be laid aside. With the left index-finger still in the preliminary wound through which the spine has been removed, pressing down between the stump of the excised end and the upper margin of the laminae below, and with the right index under the last spine of the flap, the entire mass is turned backward and upward onto the patient's back (Fig. 517, A). The backward displacement of this flap is OSTEOPLASTIC RESECTION OF THE SPINE. 657 accomplished in the following way: The mass hinges over the stump of the excised spinous process, the interlaminous ligaments serving as the hinge; Fig. 517. — Osteoplastic Resection of the Spine: — A, Tenaculum-forceps holding back composite flap; B, B, Delicate forceps grasping and elevating membranes and forming a trans- verse ridge; C, C, Tenacula holding apart edges of incised membranes; D, Angular scissors used in incising membranes; E, Half-button of bone bitten out of lower margin of last lamina in flap by rongeur forceps; F, Similar half-button bitten out of upper margin of next stationary lamina below, the two half-buttons forming a circular opening, when in contact, for drainage; G, Vascular fatty areolar tissue covering membranes. The stump of the excised spine is shown, in impression, through the turned-back flap. (Drawn from cadaveric operation.) at the maximum of tension of the parts the upper border of the detached laminae below is pried downward and outward from under the lower border of the intact laminae above, and then slightly rides up over the latter in the 658 OPERATIONS UPON THE SPINE AND SPINAL CORD. turning-back process. This manoeuvre does not so fully occur in the lumbar region, and but slightly, if at all, in the cervical region, owing to the different deposition of these lamime and their wider separation from each other. If the line of bone-section have fallen well within the articular processes, the joints of the articular processes will not be opened. This manipulation, though exercising some violence upon the structures entering into the make-up of the interlaminous relations at the hinge, does no permanent harm, as the parts readily drop back into their normal relationship at the end of the operation and undoubtedly soon solidify. The composite flap, once turned back, will generally lie in situ without restraint, or may be held so with a light retractor or tenaculum-forceps (Fig. 517, A). (7) Freeing of the Spinal Cord from the Extra-dural Fatty Areolar Tissue, and Control of Intraspinal Hemorrhage. — Having turned back the osteoplastic flap, the window in the spinal column is shown, corresponding in length with the number of lamina? resected, and in width with the distance apart of the saw-cuts (Fig. 517). In some cases the membranes of the cord lie readily within view and touch through the window thus formed, surrounded by a minimum of connective tissue. In other cases a more or less thick layer of vascular fatty areolar tissue may intervene between the bone and the cord (Fig. 517, G). To reach the membranes, this layer must be removed, which is best accomplished by grasping it with delicate forceps and cutting it with fine angular scissors. The hemorrhage which results from this manoeuvre, and which may be somewhat marked, is usually readily controlled by the pressure of gauze held in small forceps. The hemorrhage will be less if this vascular tissue, chiefly venous, be cut accurately in the median line. Upon the removal of this fatty connective tissue the white, glistening membranes of the cord are brought into the field. If the object of the operation have been only to expose the membranes, that object is now accomplished. If the cord itself is to be exposed, other steps are necessary. (8) Opening of the Membranes of the Cord. — The most satisfactory manner of incising the membranes which the writer has found is the following: Two pairs of delicate, toothed forceps are taken, one held in the surgeon's left hand and one in an assistant's right hand (Fig. 517, B, B) ; each of these, on the same level, takes a light hold upon the membranes of the cord about three millimeters (approximately one-eighth of an inch) from the median line of the membranes (making the forceps six millimeters, or one-fourth of an inch, apart), care being taken that the membranes alone are grasped. The tips of the forceps are now drawn gently outward and upward, away from the under- lying cord, whereby a marked transverse ridging of the membranes is produced at a right angle to the length of the cord. While thus held, this ridge is cut with the points of a pair of small, angular scissors held in the right hand of the operator (Fig. 517, D). Having made an opening in the membranes, the lower blade of the scissors is passed along between the cord and theca, and the incision extended to the desired length, the holds of the forceps being shifted as the incision advances, and being subsequently maintained to retract the incised membranes, or the edges of the cut theca may be held apart with fine tenacula (Fig. 517, C, C). Upon the wide retraction of the cut mem- branes the spinal cord and the exit of the nerve-roots from the cord are brought well into view. The special object of the operation, if it involve the cord, is now carried out. The present chapter deals solely with the manner of exposing the cord and canal, the various special conditions for which this exposure may have been made not being taken up. (9) Manner of Dealing with the Incised Membranes. — This will pre- OSTEOPLASTIC RESECTION OF THE SPINE. 659 eminently depend upon the nature of the special operation. All bearings of the operation being favorable, it is best to close the membranes after the carry- ing out of the special object in view. This is done with fine, plain catgut threaded upon a specially adapted, fully curved needle held in an appropriate needle-holder. The margin of each lip of the cut theca is brought into proper relationship for suturing by being held by the delicate toothed forceps used in steadying the membranes during the incision of its structures. A continuous suture completely closing the incision is preferable. (10) Reposition of the Ciiianeoniusculo-osseous Flap. — The object of the operation, as a whole, having been fulfilled, the composite flap will often fall back into accurate apposition without any effort to make it do so. It is, how- ever, better for the surgeon to reinsert his left index into the preliminary wound through which the spinous process has been excised, and carry this finger down to the stump of the excised spine (Fig. 516, B), while with his right hand he replaces the flap, thus having a better opportunity to verify the accurate fitting of the parts. This fitting of the structures back into their original relationship should be absolute; and, fortunately, it is easy to determine whether or not it is so, and equally easy to make it so if there seems to be difficulty. This replacement is brought about by manual manipulation alone, the left index in the small wound guiding the parts at their hinge-junction. The accuracy of the apposition is verified by exposing the saw-cuts, and seeing that the parts of the laminae on either side of the section line are on an exact level; and, when this is the case, it will be found that the shelving surfaces of the contiguous laminae, where the interspinous and interlaminous ligaments were cut, are in accurate apposition, that the spines are in line and on a level, and that the skin margins come easily and evenly together. (11) Buried Suturing of Muscles and Aponeuroses. — Having readjusted the composite flap, the soft parts intervening between skin and bone should be brought together by deeply buried sutures (Fig. 518, C). One would give the preference to twenty-day chromic gut, fairly stout, carried upon a fully curved needle. The cut muscles and aponeuroses are brought together in their proper layers and relations in the bite of heavy forceps, and are thus held while being penetrated by needle and suture. Two continuous sutures may be used, each passing from the upper end of one of the limbs of the U- shaped incision above to the center of the incision below, or interrupted sutures may be applied. It is not practicable to suture together the cut edges of the interspinous and interlaminous ligaments, nor is it necessary, so closely do the parts come together, but the cut ends of the supraspinous ligament may be sutured. (12) Skin and Fascial Suturing. — The skin and fascia should have their edges united with interrupted sutures of silkworm-gut or silk. A continuous suture of a wound of this shape and extent is not apt to bring the margins so accurately together (Fig. 518, D). (13) Provision for Drainage, When Indicated. — Opinions differ upon the subject of drainage, — some advising its use both within the membranes and in the extraspinal wound, and some its non-use. Unless there were some special contraindications, the preference of the writer would be to completely and accurately suture the incised membranes; to shut off infection from with- out, and the escape of cerebrospinal fluid from within; to introduce, for from twenty-four to forty-eight hours, an intraspinal but extradural drain of a few strands of horsehair or catgut, bringing these out between a couple of omitted >u]ierficial sutures (Fig. 518, E), incorporating them with a strip of gauze placed in the deep muscle wound and leading down to the spine (Fig. 518, F), 66o OPERATIONS UPON THE SPINE AND SPINAL CORD. both emerging together from the skin wound. Where intraspinal drainage is used, whether it be intra- or extra-dural, special provision must be made for it. This is best secured by biting out, with rongeur forceps, a half-button of bone from the lower margin of the lowermost lamina in the flap (Fig. 517, E), and a corresponding half-button of bone from the upper margin of the upper- most one of the intact lamina? below (Fig. 517, F), so that when the osteo- plastic flap is turned back into place, the two half-buttons will afford a circular bone-opening for drainage, the drains being conducted thence out through muscles and skin, as just mentioned. Fig. 518. — Osteoplastic Resection of the Spine: — A, A, Retractors in preliminary wound, showing buried sutures of muscles and superficial sutures of skin; B, B, Large retractors drawing back skin of main wound; C, Line of continuous buried sutures of deeper parts; D, Line of interrupted superficial sutures; E, Intradural horsehair or catgut drains; F, Extraspinal gauze drain. (Drawn from cadaveric operation.) (14) After-treatment. — It is conceivable, though the writer knows of no such recorded case, that, through the excision of a large number of laminae in the operation of laminectomy, a patient might be broken into two by subsequent rough or imprudent handling, so that it might be well, in even osteoplastic resection, where the operation has been extensive, to include some form of spinal splint in the final dressing immediately after operation, which could be worn until solidification of the parts had taken place through union, as after any other fracture, the patient meanwhile maintaining a strictly horizontal posture. In ordinary osteoplastic resection of average extent, and with the spine normal as to strength, the use of a splint would seem superfluous. The writer has never used any form of spinal support following laminectomy, LAMINECTOMY. 66l where the spine is left even weaker than after an osteoplastic resection. If the need of it were felt, following the convalescence of the patient, some form of leather, or leather and metal, support could be worn as long as indicated. Reference has been made to the occasional need of such a support under General Considerations. (15) Comment. — Both during and immediately following all operations in which the membranes of the cord are opened, the patient's head should be kept lower than the body and the spine absolutely horizontal, in order to lessen the loss of cerebrospinal fluid. Where the window in the spine has been made too narrow, through the placing of the bone-sections too near together, if more space for manipulation be absolutely demanded, there is no alternative but to bite out a portion of the margin of the opening into the spine, by means of rongeur forceps or bone- cutting pliers. If this be done to a limited extent, although there will be a corresponding gap when the osteoplastic flap is turned back into place, the flap will, nevertheless, be held in position and kept from pressing against the spine by resting upon the margins of the bone-section which have not been thus additionally cut away. While the normal cord, in a normal canal, is not apt to be injured by any method of ordinarily careful approach, in pathological cases the need of additional care is always present. When it is necessary to reach the anterior aspect of the spinal canal, the cord must be displaced temporarily to one side by means of gentle retraction. If such retraction should not give sufficient room for manipulation, one or two nerve-roots have been severed to afford the required additional room, and, at the end of the operation, sutured with fine plain catgut. LAMINECTOMY. Description. — See page 642, above. Preparation. — See page 644, above. Position. — See page 644, above. Landmarks. — See page 644, above. Incision. — See page 661, below. Operation. — The nature of this operation has been briefly described under General Considerations (page 642). So many of the features of the operation of laminectomy are in principle common to the operation of osteo- plastic resection, which has just been detailed at length, that only the salient and distinguishing points of laminectomy will be here mentioned. (1) Incision. — A median incision is made directly over the centers of the apices, which are, together with their corresponding laminae, to be removed. In order to give greater room for the exposure of these spines and lamina-, the incision should begin over the spine next above and end over the spine next below those to be removed (Fig. 511, C, also Fig. 514, A). It is a bad practice to place the vertical incision immediately to one side of the spines, in a line along which the muscles and aponeuroses are to be subsequently separated from the bone in the subperiosteal operation (or incised in the open, or non- subperiosteal, method) ; for if this be done, the median lip of this wound will have to be retracted to and beyond the line of the apices of the spines when the soft parts are freed from the side of the spine opposite to the one first attacked. (2) Division of Muscles and Aponeuroses. — These structures are divided 662 OPERATIONS UPON THE SPINE AND SPINAL CORD. in the same general way, in so far as the direction of incising their structures is concerned, as described under Osteoplastic Resection, paragraph 2, and as indicated in Fig. 509, A and B. But as soon as the spines are reached, the knife should be wielded firmly and made to cut its way through the periosteum to the bone, in a straight median line over their posterior aspects, from the apex of each up to a point where the apex of the spine above prevents further incision of the periosteum. The subperiosteal method should always be undertaken unless specially contraindicated; but if it be elected not to attempt the subperiosteal operation, the knife should hug the spines so closely, in deep- ening the incision through the soft parts, that a minimum of muscle and apo- neurotic tissue be left adherent to the bones. Fig. 519. — Dorsal or Lumbar Laminectomy: — A, A, A, Retractors withdrawing edges of wound; B, Clamp-forceps controlling hemorrhage; C, Chisel, against spinous processes as fulcra, levering soft part away from laminae; D, Spine of vertebra; E, Lamina; F, Interlaminous ligament; G, Doyen saw completing section of lamina and interlaminous ligaments. (Drawn from ca- daveric operation.) Note: — The feature of the subperiosteal operation is not shown here. (3) Subperiosteal Freeing of Spines and Lamince Preparatory to their Divi- sion. — Having started up the edge of the incised periosteum from the apices and posterior aspects of the spines by means of a raspatory or periosteal elevator, this process of separation may be continued; or, better, a chisel, with its non- bevelled edge toward the parts to be removed and its blade braced against the spinous processes (articular processes in the neck) as fulcra, is made to clear the soft parts from the spines and laminae. The edge of the chisel is carefully inserted beneath the freed margin of the periosteum, and is made LAMINECTOMY. 663 to remove the periosteum first from the spines and then from the laminae, in the form of as intact a layer as possible, and as adherent as possible to the over- lying soft parts. As it is impracticable, in advance of clearing each spine and its set of lamina?, to incise through the periosteum along the upper and lower borders of the spine and lamina?, the layer of periosteum on each side, corre- sponding with each spine and the lamina of that side, must be more or less shredded and imperfect, especially where it merges into ligamentous tissue; Fig. 520. — Cervical Laminectomy: — A, A, Saw-cuts through the lamina?, just within their junction with the articular processes; B, Doyen saw in act of dividing the lamina; at a right angle to their surface, its guard (determining the depth of section) being entirely raised at the beginning of the division; C, Knife dividing the ligamenta subflava; D, Osteotome levering away the muscles of the vertebral grooves, using the spinous processes as fulcra. but an attempt, nevertheless, should be made to preserve, even if in strips, enough periosteum from each spine and lamina to make the deposition of bone therefrom fairly likely. As mentioned under General Considerations, practically the only practical justification for performing laminectomy, ordi- narily recognized by the writer, is the doing of the operation subperiosteally. (If the subperiosteal method be not elected, the freeing of spines and lamina? is done in the same general way as in osteoplastic resection, except, in the present instance, that the chisel, with bevel toward the spines, is braced against the 664 OPERATIONS UPON THE SPINE AND SPINAL CORD. spinous processes as fulcra, and the soft parts are pried away from the spines and lamime toward the transverse processes (or articular processes in the neck). The method of manipulating the chisel is shown at Fig. 519, C, but the special feature of removing the periosteum, together with the soft parts, is not shown in this illustration. As a result of the procedures just described, a path is cleared for the saw, extending onto the lamina next above and the one just below those to be removed. Fig. 521. — Laminectomy: — A, A, A, A, Retractors separating edges of wound; B, Curved scissors dividing interspinous and interlaminous ligaments; C, Bone-holding forceps grasping spines and supraspinous ligaments, to aid in lifting out the excised area of bone; D, Chisel, against transverse processes as fulcra, with edge in saw-cut, prying out the excised part. (Drawn from cadaveric operation.) Note: — The interlaminous ligament at the upper part of the wound should also be represented cut. (4) Division of Lamina: and Ligamenta Subflava. — Having removed the packing from the wound upon one side of the spines, its lip farther from the spinous processes is firmly retracted by two special retractors, thus exposing bared lamina? (Fig. 519, A, A). The saw, held with its edge at a right angle to the surface of the laminae and somewhat nearer the bases of the transverse processes (bases of the cervical articular processes) than the bases of the LAMINECTOMY. 66 5 spines, is made to cut through the indicated laminae, as well as through one- half of the lamina next above and next below those to be removed (Fig. 519, G, also Fig. 520, B) . The course of the saw and the completion of the section should be determined as in the osteoplastic resection. (5) Division of Supraspinous, Interspinous, and Intcrlaininous Ligaments. — The above ligaments between the spines and laminae at the lower end of the section are divided with curved scissors, just as described in Osteoplastic Resection, and as illustrated in Fig. 521, B — or less safely with a knife (Fig. 520, C). In addition, the same ligaments are divided in the same manner Fig. 522. — Laminectomy: — A, A, A, A, Retractors holding apart margins of the wound: B, spinous process of vertebra above segment of spinal column removed; C, Shelving laminae of intact vertebra below; D, Cut surface of laminae; E, E, Delicate forceps grasping membranes so as to form a transverse ridge; F, Scissors in act of incising transverse ridge and continuation of membranes. (Drawn from cadaveric operation.) at the upper end of the section. The segment of spines, laminae, and ligaments is thus entirely isolated by the saw-cuts on either side and the division of the ligaments above and below. In Fig. 520 the saw cuts and the division below are alone shown. (6) Separation and Removal of Ligamento-osseous Section. — Having well retracted the margins of the wound (Fig. 521, A, A, A, A), and determined that the sections through bone and ligaments are complete, the segment thus limited is ready to be pried from its bed. While the spines and connecting ligaments are grasped by bone-holding forceps (Fig. 521, C), a chisel, with 666 OPERATIONS UPON THE SPINE AND SPINAL CORD. its bevelled edge away from the parts to be removed, and its blade braced against the transverse processes (or cervical articular processes) as fulcra, is made by depressing its handle, to lever out the mass from its bed, aided by moderate traction upon the forceps grasping the spines. In the act of its removal the mass is given a downward direction, so as to dislodge the upper- most laminae of the section from the laminae and spinous process of the last intact vertebra above (Fig. 522, B). (7) Freeing of the Cord from Extradural Areolar Tissue, and Control of Intraspinal Hemorrhage. — These are accomplished exactly as in the Osteo- plastic Operation described above, and partially illustrated in Fig. 517, G. (8) Opening of the Membrane of the Cord. — This portion of the present operation is also accomplished in a manner similar to that mentioned under the Osteoplastic Resection, and is pictured in Fig. 522, E, E, and F. (9) Manner of Dealing with the Incised Membranes. — As in the Osteoplastic Operation. (10) Deep Suturing of Muscles and Aponeuroses. — More care is here neces- sary than even in the osteoplastic resection. A large mass of tissue has been permanently removed, and the soft parts which were formerly in contact with the bones and ligaments which have just been removed are now to be brought into contact with each other and sutured together by deeply buried stout twenty-day chromic gut. In the apposition of these soft parts, whatever periosteum has been saved should be so manipulated as to be made to lie in as normal a relation as possible, so that whatever bony deposit occurs, should take place as nearly as may be in the site of the missing laminae and spines, and thus strengthen the spinal column. Interrupted sutures probably accom- plish this object better than a continuous form of suturing. (11) Skin and Fascial Suturing. — A median continuous or interrupted suture of silkworm-gut or silk should be placed through skin and fascia. (12) Provision for Drainage, When Indicated. — What applies in principle in osteoplastic resection also applies here. When temporary intraspinal drainage, whether intra- or extra-dural, is indicated, drains are readily con- ducted from within outward to the skin surface, through openings left in the soft parts between omitted sutures. (13) After-treatment. — Here, much more than in Osteoplastic Resection, may it be indicated not only to include some form of splint in the dressing immediately following the operation, but also the wearing of some form of spinal support for several weeks or months following the operation, until the spinal column has solidified through the deposit of bone by the periosteum, or otherwise. (14) Comment. — The observations made under the Osteoplastic Operation also apply here (page 661). SUBARACHNOID PUNCTURE FOR SPINAL ANALGESIA. Description. — The injection into the subarachnoid space of the spinal cord of an anesthetic solution for the purpose of producing regional surgical anesthesia or analgesia. Spinal analgesia, recently somewhat extensively and enthusiastically used, has now been largely abandoned, as being more unsafe than general anesthesia, more unpleasant in many instances, and as a retainer of consciousness during operation, an undesirable thing in itself, without in exchange offering greater safety to the patient. SUBARACHNOID PUNCTURE FOR SPINAL ANALGESIA. 667 Injections for this purpose have been made into various portions of the entire cerebrospinal tract — but the operation as practised for surgical pur- poses is practically limited to the lumbar region of the spine. As the cord ends at the lower border of the first lumbar vertebra, any intervertebral space below that may be used, namely, between the second and third — between the third and fourth — between the fourth and fifth — or between the fifth lumbar and sacrum. The space usually chosen is that between the fourth and fifth lumbar vertebrae — next, the lumbosacral space, or the space between the third and fourth lumbar. Fig. 523. — Subarachnoid Lumbar Puncture (Between Fourth and Fifth Verte- br.e): — Showing position of needle among nerves of Cauda equina in vertical section of the spinal region. (Modified from Stewart.) Various anesthetic solutions have been used — chiefly cocain or eucain B, used alone or combined with morphin. The cocain-morphin-saline solution originally used by Matas (from whose writings the accompanying description is largely taken) consisted of cocain hydrochlorate gr. j, morphin hydrochlorate gr. 7 ' n , sodium chlorid gr. i, dissolved in 20 minims of water, the water first sterilized and the mixture subsequently resterilized by the fractional method, and injected warm by means of a special syringe. More recently stovain has been found safer, and Matas now uses § of a grain dissolved in from 30 to 60 minims of the spinal fluid withdrawn. Preparation. — Thorough sterilization of the field of operation. Position. — Where possible, the patient sits upright upon the edge of the table, with feet upon a chair, and leaning forward, supporting himself by hands upon knees, so as to round out the back convexly and increase the 668 OPERATIONS UPON THE SPINE AND SPINAL CORD. transverse width of the intervertebral spaces by 1.5 cm. (§ inch) — and also to cause the cerebrospinal fluid to gravitate. Where the patient cannot sit up, he may lie upon his side in Sims's position with back similarly arched. Landmarks. — The spinous processes of the fourth and fifth lumbar ver- tebrae should be identified, which is not always easy in thickly covered backs. A straight line drawn transversely between the highest points of the iliac crests posteriorly, while the patient is as erect as possible, will cross the tip of the spinous process of the fourth lumbar vertebra. The point of injection lies just below and slightly to the outer side of the junction of this line with the tip of the spinous process of the fourth lumbar vertebra. The spinous proc- esses may be also identified by counting downward from the seventh cervical spine (the vertebra prominens) . (See Fig. 523, D.) Operation. — (1) The skin having been thoroughly prepared — the imme- diate area infiltrated with a few drops of Schleich's cocain solution — the back Fig. 524. — Subarachnoid Lumbar Puncture (Between Fourth and Fifth Verte- brae): — Showing position of needlt-point among nerves of cauda equina, in the subarachnoid space, in transverse section of the spinal region. rounded out by the patient's leaning forward — the tip of the spinous process of the fourth lumbar vertebra is marked by the left index-finger. The needle of an empty syringe (preferably a special syringe and one made without screw attachment for the junction with the needle) is entered at a point about 1 cm. (nearly \ inch) to the right and just below the tip of this spinous process — and is made to penetrate slowly in a direction forward, inward (toward the median line), and slightly upward into the interspinous space between the fourth and fifth lumbar vertebrae (Fig. 523), recognizing, if possible, the entrance of the needle into the subarachnoid space by the lessened resistance as the needle passes through a tense structure into a freer cavity. The distance thus penetrated is generally between 6.5 and 7.5 cm. (about 2% to 3 inches) (Fig. 524). (2) The piston of the syringe is now drawn and, if the needle be in the subarachnoid space, the clear cerebrospinal fluid will appear (if the needle be of fair size and not occluded). As soon as a few drops have LUMBAR PUNCTURE FOR DIAGNOSIS AND THERAPEUSIS. 669 flowed, the cylinder of the syringe is detached from the needle (which is left in situ), with the least possible loss of cerebrospinal fluid — and the cylinder of the syringe, now charged with the anesthetic solution, is reattached to the needle and the fluid carefully injected. The needle is allowed to remain in situ a few moments and is then withdrawn — and the needle wound sealed with sterilized cotton and flexible collodion. Anesthesia should follow in from ten to fifteen minutes. Comment. — Where the space originally sought cannot be found or satis- factorily entered, resort to any available interlumbar space below that between the first and second. Sometimes an incision, under local anesthesia, has been made down to tiie ligamenta subflava. A laminectomy has sometimes been first performed. But these steps are unnecessary in the vast majority of cases. LUMBAR PUNCTURE FOR DIAGNOSIS AND FOR THERAPEUSIS. This comparatively recent aspect of lumbar puncture is an important application of the operation — and is based upon the examination and inter- pretation of the fluids, and especially the suspended solids, physiological and pathological, withdrawn from the subarachnoidean space by puncture with needle or fine trocar. These examinations embrace several fields of inquiry; — (1) Physically; — For characters presented in such conditions as meningitis, jaundice, and hemorrhage (either intra-cranial or intra-spinal) . Cryoscopy of the cerebrospinal fluid has been practised, especially in meningitis, where the freezing-point has been reported as lowered. (2) Chemically; — For characters presented in such conditions as menin- gitis, general paralysis of the insane, and some degenerative lesions of the brain and cord. (3) Bacteriologically; — Chiefly for the purpose, at present, of determining the variety of micro-organisms in a special case of meningitis. (4) Microscopically ;— Not only is the centrifuged fluid examined for bacteria, but also an especially important bearing of the microscopic exami- nation is the determination of the type of leukocytes (cytodiagnosis proper), particularly under such circumstances as in the differentiation of acute and chronic meningitis, and in syphilitic and post-syphilitic involvements of the central nervous system. A particularly valuable bearing of the diagnostic possibility of lumbar puncture for the surgeon is in intra-cranial and intra-spinal hemorrhage from no matter what source. For instance, in a suspected fracture of the spine with wounding of the cord, bloody cerebrospinal fluid would be rather corrobo- ratory. Again, in a case of unconsciousness, bloody fluid drawn by lumbar puncture would argue more strongly for intra-cranial hemorrhage than for thrombosis — and such a case of hemorrhage is recorded as diagnosed by this method, operated, and saved. In making the puncture for diagnosis, it should be made as low as possible, between the fifth lumbar and first sacral, in order to get fluid rich in sediment. The chief application of lumbar puncture as a means of therapeusis is illustrated in injecting antitetanic serum into the subarachnoidean space. The technic of puncturing the lumbar subarachnoidean space, whether for cytodiagnosis or therapeusis, is practically the same as described under Lumbar Puncture for Spinal Analgesia. 670 OPERATIONS UPON THE SPINE AND SPINAL CORD SPINAL PUNCTURE FOR DRAINAGE OF THE SUBARACHNOID SPACE. Description. — Excess of cerebrospinal fluid is sometimes removed for the relief of pressure in the cerebrospinal tract. This may be done through any of the interspinous spaces — but is usually done in the lumbar region, in the same space and in the same general manner as Subarachnoid Puncture for Spinal Analgesia. For the same purpose the occipital bone has been trephined and the basal subarachnoid space beneath the cerebellum entered and drained — see Incision of the Cerebellar Subarachnoid Space for Drainage, page 595. Drainage of the cerebrospinal fluid is chiefly indicated in menin- gitis and hydrocephalus, cerebral abscess, intra-cranial tumors, uremic coma and convulsions, syphilitic headache, and in some auditory troubles of labyrinthian origin. The chief applications of lumbar puncture therapeutically, through drain- age, are either as a cerebrospinal "decompressive agent" alone, as where the accumulated fluid is harmful only because of the pressure exercised, as in hydrocephalus, or as a combined decompressive and evacuant agent, as where the fluid is also harmful because of its quality, as in suppurative menin- gitis. Preparation — Position— Landmarks. — As in Subarachnoid Puncture for Spinal Analgesia. Operation. — The steps of the operation are, in all practical respects, the same as in the preceding one. The cerebrospinal fluid may be withdrawn by trocar and cannula — or, better, by aspiratory syringe — preceded by infil- tration anesthesia. OPERATIVE TREATMENT OF FRACTURES OF THE SPINE. All cases of spinal fracture may be divided into three categories, in so far as the question of cord involvement is concerned: — cases in which it is reason- ably certain the cord is crushed; — cases in which it is fair to assume the cord is compressed or otherwise involved; — and cases in which it is fair to assume the cord is not involved by the fracture or its consequences. It is often impossible to tell whether the cord is injured until the cord is exposed, unless one waits a length of time which will often make the correction of the damage impossible. Only three general methods of treatment are open to the surgeon: — the expectant; reduction by bloodless methods and fixation; and operation. The non-operative methods are usually continuous extension, traction in the horizontal position, or vertical suspension. One would advise waiting a reasonable length of time, to exclude shock and a certain degree of anesthesia often caused by shock; then, if not otherwise contraindicated, to operate on the second day, as only exposure will reveal the exact condition, and if a harmful condition be allowed to exist for many hours, irremediable damage may be done. If, on the other hand, there be no doubt, and the general condition permit, operation should be done imme- diately. One should also exercise judgment in being deterred by the general con- dition, for that is known to be often kept up until the local condition is relieved. It may be impossible to distinguish compression, concussion, and rupture of the cord, and while it would be, of course, desirable to recognize compression OPERATIVE TREATMENT OF FRACTURES OF THE SPIXE. 671 before operation, valuable time may be lost in waiting for the diagnosis to be made clear. Compression, or even destruction of the cord and nerves, may occur from hematoma, extra- or intra-dural, or even hematomyelia, resulting from the fracture, or by exudate, and not directly from the fracture itself. In cases of fracture where the cord is not injured at the time of the fracture, or immediately after, it may be subsequently compressed by callus thrown out in repair, necessitating operation. There is no recognized technic in operating upon fractured spine. The conditions found in each case must guide the operator, the underlying principles being to remove completely detached pieces of bone which are exercising Fig. 525. — Wire-ligaturing in Fractures of the Spine: — A, Interspinal ligature of Hadra; B, Intertransverse ligature of Hadra; C, Interlaminar ligature of Chipault. pressure, and, where possible, to bring into alignment and retain partially detached bone. The latter is accomplished by simple reposition alone, or reposition followed by wiring of sound bone (Figs. 525 and 526). In either case an immobilizing dressing is applied, the wound being closed with or without drainage, as indicated. The site of fracture is best approached along the lines of an ordinary lami- nectomy. This gives full exposure to the posterior arches of the vertebrae. The transverse processes and pedicles may be exposed by continuing the freeing of these structures of their soft parts through the laminectomy incision widely retracted. In the case of fractures of the bodies, all that can be done is to pry them back into line by levering them into place by using the neighboring 672 OPERATIONS UPON THE SPINE AND SPINAL CORD. bony firm parts as fulcra, by means of some appropriate metallic instrument, or by means of manual manipulation. Whether the fracture be of the bodies or the arches, the method of using wire is to carry it from some sound part of the arch above the fracture to a corresponding sound part below the involve- ment. Fig. 526. — Wire-suturing in Fractures of the Spine: — A, Interspinous suture through drilled spines above and below fracture; B, Intertransverse suture through drilled transverse processes above and below fractured vertebra. OPERATIVE TREATMENT OF DISLOCATIONS OF THE SPINE. Dislocation of the spinal vertebrae is caused by the articular process of the higher vertebra gliding downward and forward over the lower. If the gliding has gone far enough to cause the posterior margin of the upper articular process to pass beyond the articular margin of the lower articular process, where it becomes interlocked, dislocation is said to have occurred, the body of the upper vertebra having glided to some extent over the body of the vertebra below. If the gliding has been less extensive, so that these margins have not passed each other, and interlocking, therefore, has not occurred, subluxation is said to have taken place. The dislocation may be unilateral or bilateral, the latter always causing cord pressure. OPERATIVE TREATMENT OF FRACTURE-DISLOCATIONS OF SPINE. 673 Dislocation in the dorsal and lumbar regions always involves fracture of the articular processes, and generally also of the laminae, owing to the more nearly vertical position of the articular processes. Dislocation is most common in the cervical region (owing to the play of the vertebra?), usually between the fifth and sixth vertebra?; next, between atlas and axis. It is rare in the lumbar region, and rarest in the dorsal. Dislocations should be reduced by non-operative measures if possible. If they cannot be so reduced, there are those w T ho make no further effort at rectifying the lesion, provided no nervous symptoms be present. If, however, nervous symptoms be present in a case which has withstood non-operative efforts at reduction, operation is then indicated. What has been here said applies to recent dislocations. If the case be an old one, and there are no nervous symptoms and no great deformity, it may be let alone. If there be nervous symptoms, or great deformity or discomfort, operation should be undertaken — understanding the increased difficulties in the way of reduction and the likelihood of finding a partially degenerated cord, and the possibility of inflicting additional damage in the operation. These, however, should not deter one from a radical pro- cedure. The non-operative technic consists in first practising firm traction upon the column, manual or instrumental, and then, by manipulation, to disengage the interlocked vertebra? and push the dislocated one back into place. In operating, especially in bilateral dislocation, it is to be remembered that one may expect to find the intervertebral articulation torn, the supraspinous and interspinous ligaments, ligamenta subflava, and the anterior and posterior common ligaments lacerated, and the intervertebral substance damaged. The soft parts should be well retracted from the bones, so as to expose the latter thoroughly. By manual or instrumental manipulations, while the spinal column is kept under traction, an effort should be made to return the parts to their normal positions. Failing in this, excision of part of one or both articular processes should be done — after which reduction can usually be accomplished. In completing the operation, the ligaments and other soft parts injured by the original traumatism and by the operation should be repaired by kangaroo- tendon suture — the spinous processes may be wired with silver wire — and the back should be supported by a metallic or plaster brace. OPERATIVE TREATMENT OF FRACTURE-DISLOCATIONS OF THE SPINE. Two forms of fracture-dislocation are recognized: (A) One or both inter-articular joints are dislocated, and there is pres- sure-fracture of the body of the vertebra. (B) Both inter-articular joints are dislocated, and the body of the ver- tebra is both dislocated and fractured. The indications for operation may be gleaned from what has been said under this head in the Sections upon Fractures and upon Dislocations, — the methods of procedure being practically the same. The injury done the cord in these cases is, naturally, generally greater than in either fracture or dislocation alone — and, unless the case be absolutely hope- less, the indication for surgical interference is also usually greater, and should be prompt and radical. Chipault advises, following the rectification of the injury, to drill the spi- nous processes, and even the transverse processes and lamina?, and wire them. 43 674 OPERATIONS UPON THE SPINE AND SPINAL CORD. OPERATIVE TREATMENT OF INCISED AND PENETRATING WOUNDS OF THE CORD. Classification of Wounds as to Penetration — (penetration meaning either penetration of both membranes and cord, or membranes alone), (i) Wounds where penetration is doubtful. (2) Penetrating wounds without injury to cord. (3) Penetrating wounds involving the cord. It is evident that one of these conditions must exist — but it is evident that it may often be impossible to tell which. Berger and Hartmann summarize the indications for operation as follows: — Indications for surgical measures, dependent upon the period of the wound, taken in conjunction with penetration or non-penetration: — (A) /;/ the Immediate Period: — (i) Where penetration is doubtful — One may intervene at once — or await the development of the case. (2) Where penetration is supposed to have occurred, but no nervous symptoms have developed; — Intervene. (3) Where penetration is supposed to have occurred, and nervous symp- toms have developed; — two possibilities arise: — If incomplete section of the cord is supposed — Operate. If section of the cord is supposed to be complete — the usual advice is not to operate. The writer would advise operation on the ground, first, that such cannot be known without operation, and, secondly, that it is better to attempt to repair the damage than not to attempt to do so. (B) In the Secondary Period: — If continuous suppuration occurs or pressure symptoms— Operate. If foreign body be present — If it be a determining factor — Operate. If an unimportant factor — Remove if accessible. Some generalizations may be made in connection with Incised and Penetrat- ing Wounds. An escape of cerebrospinal fluid argues a penetrating wound. A suspicious wound accompanied or followed by cord- or nerve-phenomena is more apt to be penetrating than otherwise. Lumbar puncture made for diagnosis, in which bloody fluid is withdrawn, is sufficient warranty for accepting penetration, provided it is not likely the blood comes from the needle-wound. Failure to withdraw blood, while pre- sumptive, is not such positive proof in the opposite direction. If one be in doubt, the wound can be enlarged, stopping short of exposing the cord if there be reasonable evidences against penetration. It is safer to drain all doubtful wounds — reference being here made to wounds of the overlying soft parts. If the membranes have been opened by the wound, the membranes should not be sutured where infection is likely to have occurred. If infection be unlikely, suturing of the membranes will make subsequent outside infection less likely to occur, and will prevent the escape of cerebrospinal fluid. If the membranes be drained, keep the head low. Symptoms may be caused by no actual wound of the cord, but indirectly by a hematoma resulting from the wound and pressing the cord intraspinally. Intraspinal hemorrhage may be extradural or intradural, or within the cord — hematomyelia. OPERATIVE TREATMENT OF GUNSHOT WOUNDS OF THE CORD. 675 One should guard against considering every nervous phenomenon as evi- dence of penetration. Undoubtedly the most difficult cases in which to reach a decision will be those in which it seems certain that penetration has occurred, and yet in which there are no nervous symptoms. Undoubtedly the safest plan in such cases would be to operate, yet it is probable that many surgeons would await evidences of infection or pressure. The method of dealing with a cord com- pletely divided is given under the Operative Treatment of Gunshot Wounds of the Cord (page 675). OPERATIVE TREATMENT OF GUNSHCT WOUNDS OF THE CORD. Gunshot wounds, owing to the nature and size of the projectile, form, with fractures, a class of injuries in connection with which complete transverse destruction of the cord is most apt to occur. They more nearly resemble fractures in the amount of damage they are apt to do the cord, both by their own trauma and that of bone-splinters — while they more nearly resemble penetrating wounds in other respects. The indications for surgical interference are, practically, the same as those just given for incised and penetrating wounds, with even more emphasis upon prompt operative treatment — and the generalizations there given also apply here. A paper upon Gunshot Wounds of the Spinal Cord, read before the Xew York Academy of Medicine by Haynes, gives strong argument for early and more general operation — where it was conclusively shown that cases so treated stood a better chance of recovery than the non-operated cases. His researches covered the ten years from 1896 to 1906. During this time he could find only 43 cases recorded, to which were added 3 cases (with 1 recovery and 2 deaths) operated by the writer in the Charity Hospital of Xew Orleans. Of this total of 46, 7,t, were operated, 19 recovering and 14 dying — giving a mortality of operated cases of 42^ per cent. Of the 13 non-operated cases, 4 recovered and 9 died — giving a mortality of 69J per cent. There is thus, in this collection, a percentage of 26I per cent, in favor of operation. The following conditions were found in the above cases: — Bullet in spinal canal, n times; — cord severed, 10 times; — cord crushed, 4 times; — cord pierced by bullet or bone, 5 times; — cord compressed, n times; — not desig- nated, 5 cases; — total, 46. The questions of greatest practical importance in gunshot wounds of the spine are as to the extent of injury done the cord — and the best method of treating the condition. It is exceedingly interesting, as well as remarkable, to know that among the above 46 cases there were three cases reported (by the late Dr. Fowler, of Brooklyn; by Estes, of Bethlehem, Pa., and one conjointly by Stewart and Hart, of Philadelphia) in which there was total transverse destruction of the cord, with loss of substance — in which the ends of the cord were united by suture — and in which not only was life saved, but also some degree of functioning regained. The manner of dealing with the cord in these three successful cases is here given: — In the case of Stewart and Hart, operated three hours after injury, f inch of the cord, opposite the seventh dorsal vertebra, was destroyed by the bullet. The ends of the cord were approximated by one anteroposterior and two transverse chromic-gut sutures, passing through the entire thickness of the cord. 676 OPERATIONS UPON THE SPINE AND SPINAL CORD. Estes, operating on the tenth day, writes: "I made a complete section of a disintegrated cord at the first lumbar vertebra — removed about f inch — squared off the ends, and brought them together with catgut sutures, and sutured the dura over the united cord." Fowler, also operating on the tenth day, found a .38 caliber bullet lying between the ends of a completely divided cord, between the tenth and eleventh dorsal vertebrae. He wrote: "The ends of the cord were then sutured with three fine chromic catgut sutures. No special difficulty was experienced in drawing together the ends of the cord and closing the defect, the latter representing the width of the diameter of a .38 caliber bullet. The dura was further secured with a number of sutures of fine catgut, and a drain, consisting of a half-dozen narrow strips of oiled-silk protective, introduced." In all three cases a meningomyelorrhaphy was done (Fig. 527) — and Estes preceded his suturing by the excision of the ends of the cord. Fig. 527. — Meningomyelorrhaphy: — Sutures passing through both cord and membranes. Instead of passing the sutures through both membranes and cord, Chipault advises passing them through membranes alone (meningeorrhaphy), thus avoiding further damage to the cord proper. In the writer's case, where the cord was completely severed and an amount corresponding with the diameter of the ball gone, the sutures were passed through the membranes and cord — but it was impossible to approximate the ends of the cord. In the future, one would temporarily divide two or three sets of nerves, if necessary, and loosen up the dura from the canal, and then do a simple circular meningorrhaphy (Fig. 528), by interrupted fine chromic-gut sutures passed through the membranes only — suturing the divided nerves at the end of the operation — for while there is no full consensus of opinion upon the efficacy of cord-suturing, and while the preponderance of experience does not justify the belief that there is cord- OPERATIONS FOR REMOVAL OF TUMORS OF SPINAL CORD. 677 regeneration, yet in those cases in which, at operation, the cord is found severed, it is better to make an attempt to suture it rather than to make none. Hart and Stewart and Haynes have made satisfactory union of the cord in experimental work upon the cadaver, after excising up to one inch — aided by the posture of the subject and by the temporary division of nerve-roots. Fig. 528. — Mexixgeorrhaphv: — Sutures passing through membranes alone. OPERATIONS FOR THE REMOVAL OF TUMORS OF THE SPINAL CORD. Indications for Removal of Tumors Involving the Spinal Cord as Determined by their Anatomical Origin. — The classification of William- son may be here used: — (1) Vertebral — originating within the vertebrae and secondarily compressing the cord — the most favorable for removal. (2) Extra-dural Meningeal — originating within the meninges and extending between meninges and spinal canal — favorable for removal. (3) Intra-dural Meningeal — originating within the meninges and extending between meninges and cord — generally removable. (4) Intra-medullary — originating within the cord substance — least favor- able — inoperable in proportion to degree of involvement and infiltration of the cord. Tumors within the spinal canal are generally best removed through an osteoplastic flap exposure. Those involving the posterior arches of the spinal column are usually removed by laminectomy. 678 OPERATIONS UPON THE SPINE AND SPINAL CORD. Preparation ;— Position ; — Landmarks.— As in Osteoplastic Resection of the Spine (page 648) or as in Laminectomy (page 661). Operation. — The general principles involved in the removal of cerebral and cerebellar tumors also apply to tumors of the cord (pages 597 and 599). If the tumor be of the posterior arches of the spine, it is exposed by incising Fig. 529. — Exposure or Intra-dural Spinal Tumor by Osteoplastic Resection: — A, Composite flap of soft parts, lamina;, spinous processes, and ligamenta subflava turned back- ward; B, Spinal canal exposed by the temporarily severed and displaced lamina;; C, Intra-dural meningeal tumor, displacing and pressing upon cord and nerves of left side. and retracting the overlying soft parts. If it be intra-spinal, it is preferably exposed by an osteoplastic flap. Vertebral and extra-dural meningeal tumors are removed without opening the membranes, as a rule. The membranes are incised in exposing intra-dural meningeal and intra-medullary tumors. SPIXA BIFIDA. 679 After exposure the tumor may be found non-removable, and nothing remains but to close the wound. This, however, is the exception, unless the tumor be intra-medullary. When the growth is exposed it is sometimes impossible to tell whether the tumor originated from the cord, from the meninges, or from the vertebrae. The tumor is best removed with a sharp spoon or curette, enucleating it where possible. The majority of strictly intra-spinal tumors are connected with the meninges, and their removal, mechanically, is usually not difficult. Intra-dural meningeal tumors generally involve the cord only by pressure (Fig. 529). Intra-medullary tumors which only involve a part of the cord should be dissected away from the substance of the cord with the minimum damage — hoping not to totally impair the functions of the cord by too extensive transverse destruction. Should the tumor prove inoperable the pain, which may have been severe, may at least be relieved by the intra-spinal section of the nerve-roots involved in the pressure, and it is necessary to cut at least three roots, owing to the association of the sensory fibers. It has been suggested, in operating upon tumors of the anterior aspect of the cord, to temporarily divide the necessary nerve-roots intraspinally — displace the cord laterally and posteriorly— attack the growth — and resuture the nerves at the end of the operation. The cerebrospinal fluid should be allowed to escape slowly — if too freely or rapidly, surround the upper end of the cord by temporary ligature of floss-silk (Schede) — or lightly pack the upper end of the canal (Pearson or Woolsey). Suture the dura lightly with fine catgut — although its non-suture is advised by some surgeons. Temporarily drain down to the dura in any case. In spinal tumors, resection of the vertebral arches may be indicated. INTRASPINAL PARTIAL NEURECTOMY OF THE POSTERIOR NERVE- ROOTS. Description. — In cases of inveterate neuralgia sections of the posterior nerve-roots, representing the nerves involved, have been removed after opening the spinal membranes. In the cases operated upon the results have not been altogether satisfactory. If, as in one of Abbe's cases, the limb has been ampu- tated and spasms still continue in the stump, as well as the manifestation of pain, the motor roots may also be cut (neurotomy), besides the partial excision (neurectomy) of the posterior roots. In addition to the excision, Keen has suggested the breaking up of the ganglia upon the posterior nerve-roots, for fear of reestablishment of connection. The technique of the operation is simply that of a laminectomy or, preferably, an osteoplastic spinal resection, as far as the exposure of the membranes and cord is concerned. Care is exercised in choosing the site of the exposure that the roots of the nerves involved may be accurately located. After the canal is exposed the membranes are opened as described under Laminectomy — the particular nerves are recog- nized — and as much of the posterior roots as can be resected within the dura is excised — and the membranes and the wound dealt with as in laminectomy or osteoplastic spinal resection. SPINA BIFIDA. Description. — This condition consists of an abnormal congenital opening, due to error in development, situated in some part of the spinal column, generally in the median line of the posterior arches of one or more vertebrae, 680 OPERATIONS UPON THE SPINE AND SPINAL CORD. rarely in the bodies— through which cerebrospinal fluid and a part or all of the structures of the cord protrude, or with which they are in contact. Varieties. — (i) Spina Bifida Occulta— a vertebral cleft existing without the protrusion of cord or membranes. (2) Meningocele — the membranes alone protruding through the vertebral cleft, the cord proper remaining within the spinal canal— furnishing about 8 per cent, of all cases. (3) Meningo- myelocele — both cord and membranes protrude through the cleft, the wall of the sac consisting of skin and dura mater, lined by arachnoid membrane, its cavity being continuous with the subarachnoid space. The cord is generally in contact with the posterior wail of the sac, the nerves traversing its lateral walls to the intervertebral foramina (though sometimes running directly through its cavity). In the lower part of the column the nerves forming the cauda equina are usually found spread over and adherent to the wall of the sac. This, the meningomyelocele, is the commonest form of spina bifida, forming about 62 per cent, of the cases. (4) Syringomyelocele — the cavity of the tumor is here formed by the dilated central canal of the cord, its membranes, and the integumentary coverings — constituting a rare form of the disease. (5) In the fifth form of spina bifida the central canal of the cord communicates with the surface of the body, no skin covering the bony defect and no barrier existing to the free escape of cerebrospinal fluid. This is another very rare form of the lesion. Rarely is the bony defect in the body of the vertebrae, but when it is, the hernia protrudes anteriorly into the pelvis, abdomen, thorax, or neck. The order of frequency in which spina? bifida? occur is lumbar, lumbo- sacral, sacral, cervical, dorsal. Operation for spina bifida was considered impossible a few years ago. Indications for Operation. — In the ordinary course of events, death usually occurs in about six months after birth in unoperated cases. As to the question of advisability of operation, two classes of cases occur: In the first category, the tumor, following birth, grows rapidly, the covering becomes thin, and rupture seems imminent. In these cases the general opinion is to operate — and prompt operatio: l is, undoubtedly, the better course. Others, Broca among them, on the other hand, hold that it is in just such cases that operation most frequently fails, and that it is best to do nothing. While it is true that it is in just such cases that the chances are most desperate, and hydrocephalus is most apt to follow, if parents understand and accept these conditions, operations should be done in the great majority of cases. In the second category of cases the tumor exists, but not menacingly, and parents ask for its removal for appearance's sake only. In such cases, other conditions being favorable, one should operate. If the child be in a bad general condition, the longer the delay, the better the chances to obtain a good immediate operative result and a satisfactory general result. The condition, rather than the age, should determine the time of operation — other things being equal. The best age is between three and four years, where, as mentioned above, death is not threatened earlier. The outlook is not so good when other deformities or involvements coexist. To summarize the indications for operation, spina bifida is preeminently a condition in which the patient has nothing to lose and everything to gain by operation — in spite of the fact that many cases of successful operation for spina bifida die subsequently of hydrocephalus. Preparation; — Position; — Landmarks. — Determined by the position and nature of the tumor. Operation. — The only operation to be seriously considered for this con- SPIXA BIFIDA. 68l dition is excision, with closure of the cleft by means of flaps of the soft parts, or by one of the osteoplastic methods, as indicated — the steps and modifications of which are the following: — An elliptical incision, generally in the long axis of the spine, is so planned that, beginning and ending a sufficient distance above and below the base of the tumor, its limbs are so placed upon or near the base of the tumor laterally as to enable two flaps of proper size and shape to be raised to cover the bony defect. Or a single median skin incision may be made, with elliptical muscle incisions (Fig. 530). These two flaps, consisting of all the Fig. 530. — Operation for Spina Bifida by Mcsculo-aponeurotic Flaps: — I. — A, A, Retractors exposing dorsal structures; B, B, Spines of vertebrae above and below bony defect; C, Remnant of sac of spina bifida after excision of its redundancy; D, D, Lines of relaxing incisions through outlying muscles and aponeuroses. soft parts down to the membranes, are dissected back, on each side, to a little beyond the margins of the bony cleft. Having exposed the sac proper, and having placed the head of the child low, so as to avoid loss of cerebrospinal fluid, select some part of the sac, preferably its lateral aspect, where it is not likely to encounter cord and nerves and where the cicatrices of the median skin and lateral sac incisions will not coincide. Incise the sac carefully and enlarge the opening gradually, both to better safeguard the nerve structures and to decrease the rapidity of outflow of cerebrospinal fluid. Having opened 682 OPERATIONS UPON THE SPINE AND SPINAL CORD. the sac, one of three conditions may be found: — (A) Where the sac contains neither cord nor nerves, the sac, if its neck be small, may either be ligated at its emergence from the spinal cleft, and excised — or, if its neck be large, it may be excised just distal to the cleft and its cut margins sutured; the former probably the better plan. (B) Where the sac contains unimportant nerve elements ending in its walls, one may ligate or suture as just described, as such nerves may be harmlessly sacrificed: (C) Where the sac contains the cord and important nerves, or even important nerves alone, running through the sac, Fig. 531. — Operation tor Spina Bifida by Musculo-aponeurotic Flaps: — II. — A, A, B, B, As in above figure; C, C, Relaxing incisions showing depth and extent of inward retrac- tion of musculo-aponeurotic flaps; D, Line of suture of inner margins of musculo-aponeurotic flaps over center of remnant of sutured sac of spina bifida. or adherent to its walls, one should first carefully dissect out all such structures from the sac and return them to the spinal canal, after which the sac should be excised and the deep edges of the sac, including the membranes, should be sutured over these structures. The bony cleft may be closed by the already overlying or adjacent soft structures (myoplasty) or by adjacent or distant bony structures (osteoplasty). I. Myoplastic Methods. — (A) Where the case is simple, the bony opening small, and the overlying skin, connective tissues, and adjacent muscles and aponeuroses thick, these overlying structures may simply be brought together SPINA BIFIDA. 683 in the median line and sutured — with or without lateral liberating incisions ( Fi g- S3 1 )- , e (B) In larger openings, Bayer, using the myoplastic method, after under- cutting and retracting the skin, cuts out two semilunar flaps of dorsolumbar aponeuroses and muscles from the spinal furrows, one on either side of the spine, which he then displaces inward and sutures in the middle line, so twisting them that their deeper surfaces become more superficial. II. Osteoplastic Methods. — Where large, extensive openings exist, some form of the osteoplastic method secures a better closure — and of these there are several: (1) The osseous flap may be borrowed from the vertebral column: — (a) Dolinger, retracting the muscles covering the rudimentary lamina? which form the boundaries of the osseous defect, cuts through their bases, in whole or in part, freeing them as limitedly as possible from their soft parts, bends them toward the median line over the defect, and sutures them there (Figs. 532, 533). Figs. 532 and 533. — Dollinger's Osteoplastic Method in Operating for Spina Bifida: — In A, a small bony opening is seen — which is shown repaired in B, by partially splitting the rudimentary laminas, turning them backward, and suturing them together — thus restoring the spinal canal by aid of the laminae. (b) Zenenko and Broca, splitting the bounding transverse processes of the two sides parallel with their faces, so as to form anterior and posterior halves, and bending their posterior halves backward, sutures them in the median line over the cleft (Figs. 534, 535). (2) The osseous flap may be borrowed from neighboring or distant bones other than the vertebral column: — (a) Chipault, by a semi-circular incision, convexity outward, detached a periosteal or osseo-periosteal flap, on each side, which he turned toward the median line and sutured. (b) Bobroff made a semi-circular incision, with outward convexity, along one iliac crest and detached a small osseo-periosteal flap from the postero- superior crest of the ilium. The flap is then turned backward upon the defect, its periosteal face inward, and sutured to the revivified borders of the opening. (c) Bobroff, by another method, raises an osseo-periosteal flap from the ribs, which he turns backward to cover the cleft. 68 4 OPERATIONS UPON THE SPINE AND SPINAL CORD. (d) A bony flap may be raised from the scapula in the cervico-dorsal spina bifida. Finally, osseous grafts have been taken from the scapula of dog or rabbit. Closure of the Wound. — Having provided for the closure of the bony cleft in one of the manners above mentioned, the adjacent soft parts are care- fully sutured in the median line without drainage. A gauze and cotton dress- ing is applied with moderately firm pressure, in which may be included some form of mechanical dressing to protect the parts from pressure if the dorsal decubitus is to be employed — it is better, however, to fix the child face down- ward in a special or plaster appliance. Comments. — (i) Escape of cerebrospinal fluid during operation, if excess- ive, may be prevented by lightly packing the upper end of the spinal canal with gauze. (2) In Spina Bifida Occulta no operation should be done, as no tumor protrudes — but if symptoms occur from mechanical pressure or other- wise, an attempt may be made to close the cleft by a myoplastic or an osteo- plastic operation. (3) Experience has shown that even large bony defects Figs. 534 and 535. — Zknenko's Osteoplastic Method in Operating for Spina' Bifida: — In A, a large bony opening is seen — which is shown repaired in B, by partially splitting the transverse processes, turning them backward and suturing them together, thus restoring the spinal canal by aid of the transverse processes. have been effectively closed by the displacement of muscle-flaps alone to cover them. (4) It has been suggested to spring a celluloid plate into the gap. (5) If the skin covering the tumor be inappropriate for covering, it should be gotten from the neighboring region by displacement. (6) Seek primary union — to prevent leakage of the cerebrospinal fluid and infection. Avoid drainage. (7) Bayer's method is probably the most generally applicable and most frequently used of any. (8) It is best not to sacrifice even apparently unimportant nerves, as their relative importance often cannot be determined at the operation. (9) In syringomyelocele (or, synonymously, myelocystocele), where the tumor is composed of the dilated cord itself, operation is more difficult and unsatisfactory, especially where marked paralysis has been caused by the condition. Some surgeons do not consider operation under these cir- cumstances justifiable. The dorsal part of the cord makes up a portion of the sac-wall and may have to be injured or partially destroyed during operation. TREATMENT OF ANTERIOR VERTEBRAL TUBERCULAR OSTEITIS. 685 Often, however, in such cases the amount of paralysis already present is not at all increased by section of the cord. An attempt, nevertheless, should be made to dissect the skin away from the meninges, then empty the sac, and finally cover the defect with skin, or preferably with muscle and skin — or, if feasible, by one of the osteoplastic methods. OPERATIVE TREATMENT OF POSTERIOR VERTEBRAL TUBERCULAR OSTEITIS OF THE SPINE. The posterior arches and transverse processes of the vertebra? are much less frequently the site of tuberculosis than are the bodies of the vertebrae. When so involved, the same general principle as employed in treating the more frequently invaded bodies is carried out here. The posterior structures, being much more superficially situated, the problem is a correspondingly simpler one. The disease is exposed by the safest and most direct route, differing with the part diseased or the presence of an abscess — the general features being the opening of abscesses, removal of sequestra, and the scraping away of diseased bone. The spines and lamellae are exposed as in a laminectomy — the transverse processes are less accessible — but may be reached by making a somewhat longer vertical incision, so as to allow of more extensive lateral retraction of the overlying soft parts. It may be necessary to remove lamina? in order to expose the site of disease — or in order to remove pus which may be compressing the cord. All pus-tracts should be enlarged and curetted. The costo-transverse articulations and even the heads of the ribs may be involved, requiring a considerable exposure. The methods of approaching the deeper parts are more fully given under Tubercular Osteitis of the Bodv. OPERATIVE TREATMENT OF ANTERIOR VERTEBRAL TUBERCULAR OSTEITIS. pott's disease. Description. — Pott's disease, originating in the bodies, may extend to adjacent bony processes and articulations — and is most common in the dorso- lumbar, dorsal, or cervical regions. The cord may be pressed upon by tuber- cular deposit within the canal — pachymeningitis, with thickening of the membranes — pus-formation — bony deposits, narrowing the canal — and by bony angulation of the canal. The most usual causes of pressure of the cord are tubercular deposits or pachymeningitis, rather than bony — often the greatest paralysis occurring with the least bony deformity. Indications for treatment will differ with the stage of the disease: — (I) In the early stages — General constitutional treatment and local treat- ment, especially immobilization. (H) In Pott's disease with angular curvature — of which there are two classes — ■ (1) Old cases of angularity — in which the least can be done. (2) .Angularities in the act of evolution; — of which there are three — (A) Large angularities, or angularities which may be classed as old, accom- panied by abscess, or occurring in cachectic subjects already involved in other 686 OPERATIONS UPON THE SPINE AND SPINAL CORD. tubercular lesions — immobilization. (B) Small, recent angularity, existing without abscess and occurring in otherwise satisfactory persons — extension and immobilization. Here ligation of the spines has also been done. (C) Deviations which accompany suboccipital disease — continuous extension. (III) In Pott's disease with paraplegia; — compression is not caused by the vertebrae alone, if at all, but by the tubercular deposits, thickened membranes, chronic abscesses, sequestra, and the like. Myelitis and neuritis are often so extensively present that nothing is accomplished by the operation. The para- plegia is frequently cured when the disease itself is cured. Treatment may be as in more recent angularities — by simple immobilization. If angularity co- exist, an attempt may be made to reduce it. As a last resort, more active inter- vention may be used, such as an attempt to liberate the cord and nerves com- pressed by the tubercular deposits, chronic abscess, or by bony deformity — the outcome of which is doubtful, but the attempt is frequently better than non- action. (IV) In Pott's disease with chronic abscess; — (i) Immobilization may be used alone or in conjunction with other methods. (2) If the abscess accompany angular deformity, it is wiser not to try to reduce the deformity while the pus- sac exists, as rupture of the sac is apt to be followed by mixed infection, exten- sive suppuration, and amyloid degeneration. (3) If the abscess be deeply placed and show no tendency to increase or give trouble — one may temporize without operation, as the abscess is often cured by the cure of the disease. (4) If the abscess tend to be large, or to give trouble otherwise, it may be punctured, evacuated, and injected — or operated upon as described elsewhere. (5) If the abscess be about to rupture — it should be incised and drained, without curet- tage, which would likely lead to neighboring infection. (6) If the abscess have already ruptured and fistula? be present, with or without mixed infection, — the openings should be enlarged, curetted, and the pockets connected — drainage being used. (7) If an open abscess exist and have withstood immo- bilization, curettement, injection, drainage, and general treatment, showing no tendency to heal — the site of lesion should be operated upon as described below. (8) Closed abscesses may also be operated upon radically, without being first subjected to less radical measures, according to the judgment of the individual surgeon. The more chronic manifestations of cord pressure may be due, as men- tioned by Lloyd, "to a pachymeningitis; to a tubercular deposit in the canal; to a gradual increase in the kyphosis, causing bony pressure; to an inflammatory thickening along the ligamentum subflavum; to caseous deposit around the tubercular focus; to rupture of an anterior abscess into the canal, or from pres- sure of such an abscess; or to debris from a tuberculosis of the body or other portion of the vertebras being forced into the canal; or to sequestra." The length of time of paralysis does not contraindicate operations — it is rather the kind than the length of pressure that modifies the outlook. There is a marked tendency for paralysis, even after long duration, to recov- ery. The condition of the cord is rather one of slowly developed pressure atrophy than a myelitis. Schmaus and others have shown, by postmortem work, that angularity of the column is the cause of pressure from the cord in only about two per cent, of the cases, but that it is nearly always due to an invasion of the spinal canal by the tubercular process, a tubercular peri-pachymeningitis, or tubercular abscess in the canal generally being the immediate cause. The greatest relief from operation comes when the paralysis is caused by TREATMENT OF ANTERIOR VERTEBRAL TUBERCULAR OSTEITIS 687 an intraspinal abscess or tubercular granulation tissue — and least when due to an extensive peri-pachymeningitis. It would be ideal to remove the focus of disease before time for pus-for- mation, although the technical difficulty and the danger are great. There is greater mortality in operating in the cervical region than in the dorsal. Two causes of death are peculiar to this region — wounding verte- bral arteries and phrenic nerves. The supposition of the past, of recovery following forcible straightening followed by prolonged extension, has not been verified of late years. Reinert reports a mortality of 60 per cent, from the Tubingen Clinic, of 23 out of 33 cases treated by extension alone — with 54 per cent, of recoveries and 26 per cent, improved of the 10 treated by laminectomy. Operations — are indicated — where constitutional and mechanical treat- ment have failed — where bony pressure from dislocation, sequestra, or angu- larity is present — where pressure myelitis is threatened, or peri-pachymenin- gitis is present. Operations are contraindicated — during active tuberculosis — where other complicating tubercular lesions exist — and where mechanical treatment has not been applied. The site of disease is exposed by one of the methods already described for approaching disease of the posterior arches, or by one of those about to be given for reaching disease of the more anterior aspect of the spine. The Puncture of Cold Abscesses; — The skin should be punctured obliquely so that the superficial and deep wounds are not in line. After evacuation the injection of one of the solutions usually used may be carried out (iodoform and ether; iodoform and glycerin; camphorated naphthol; 5 per cent, carbolic acid solution; and other agents). The Incision of Cold Abscesses; — this varies with the region and promi- nence of the abscess. (A) Lumbar abscess, tending to descend, should be incised in the inguinal region, in the position as for ligation of the iliac artery — or extra-peritoneally in the iliac fossa or pelvis, as indicated. (B) Lumbo-dorsal; — these should be incised either in the iliac fossa — or along the spine, in the lumbar region, as in Treves' operation. (C) Dorsal Abscess; — is best reached by the operation of costo-trans- versectomy, as described below. (D) Cervical Abscess; — is best opened by an incision posterior to the sterno- mastoid. The skin, connective tissue, and sterno-mastoid are drawn forward — the cervical plexus is guarded — the transverse process is sought and followed down posterior to the sheath of the vessel — until the bodies are met — where the abscess is encountered. Methods of Approaching the Vertebras : — The exposure of the site and treat- ment of the lesion are here given for the different regions. (I) In The Lumbar Region. The technic of Treves is the most satisfactory — the details of which are given below : Description. — The abscess is opened through an incision in the loin — the pus-sac irrigated — all caseous material curetted out — dead bone scraped away, and the sac and the wound sutured without drainage. Preparation and Position. — As for osteoplastic resection of the spine (page 648). Landmarks. — Last rib; crest of ilium; outer border of erector spinae muscle (generally from 2\ to 3 inches — 6 to 8 cm. — from spinous processes of lumbar vertebrae). 688 OPERATIONS UPON THE SPINE AND SPINAL CORD. Incision. — Vertical, 2-3 inches long (5 to 8 cm.), with its center midway between last rib and iliac crest, passing parallel with outer border of erector spina? (Fig. 536, B). Operation. — (1) Having incised skin and superficial fascia, the super- ficial layer of lumbar fascia (which is the posterior aponeurosis of the erector spinae) comes into view — the lower part tendinous, the upper part giving origin to fibers of the latissimus dorsi. (2) Divide this superficial layer of lumbar fascia the length of the incision and expose the erector spinse muscle, with its fibers running vertically. (3) Recognize the outer border of erector spinae and retract toward spine, thus exposing the middle layer of the fascia lumborum (which is the anterior aponeurosis of the erector spinae muscle) — its glistening fibers tending transversely. The erector spinas is, at this site, Fig. 536. — Incisions for Exposing the Bodies of the Vertebr.-e in Tubercular Osteitis: — A, Angular incision for exposing the dorsal vertebrae (costo-transversectomy); B, Vertical incision for exposing the lumbar vertebrae (Treves' operation). now adherent to its aponeurosis anteriorly and posteriorly. (4) Feel for the transverse processes of the lumbar vertebra? through this aponeurosis, the third usually being the most prominent. Draw the erector spinae well toward the middle line and divide its anterior aponeurosis vertically, near to the trans- verse processes, thus exposing the quadratus lumborum muscle, with its fibers and tendon bundles running obliquely outward and downward. (6) Carefully incise the quadratus lumborum near the transverse processes and enlarge to the full extent of the wound, guarding abdominal branches of lumbar arteries. The psoas muscle (with its fibers running outward and downward) is thus exposed, overlapping the inner edge of the quadratus lumborum and running about parallel with its posterior fibers. The anterior lamella of the lumbar fascia occupies the interval between these two muscles. (7) Having divided some of the fibers of the psoas close to a transverse process, pass a finger under- TREATMENT OF ANTERIOR VERTEBRAL TUBERCULAR OSTEITIS. 689 neath the muscle and cautiously advance along the transverse processes until in contact with the anterior aspect of the vertebral bodies, enlarging the incision in the psoas as far as necessary. (8) The abscess cavity is encountered in the passage of the finger around the body of the vertebra and is incised. A finger is then introduced into the abscess cavity and the anterior aspect of the vertebral column is carefully examined where disease of the lumbar or dorso-lumbar regions is suspected — care being taken to make provision for the escape of pus directly outward, the pus-sac itself and the lips of the sac after incision being drawn well into the wound. P'ree irrigation with normal salt or anti- septic fluid of the emptied pus-sac is carried out by means of a tube conducted to its bottom, the emptying of the sac being made more thorough by an assis- tant's compression of the abdomen from in front and by change in the position of the patient, thus alternately filling and emptying the sac. (9) Following the irrigation of the abscess cavity, a finger is introduced into the sac and as much of its lining membrane as possible is removed. Diverticula are opened up and caseous masses are thus removed by the finger-nail, or by a semi- sharpened spoon used with care, especially upon the thinner anterior wall of the cavity — or a flushing gouge may be used. The sac wall should finally be scrubbed' with gauze carried in upon a sponge-holder. The cavity is then once more flushed out, to free it of the debris of these last manoeuvres, and once more wiped out so as to be left dry. (10) The lips of the incisions are now brought together by buried chromic-gut suture — no drainage being used. The cut edges of muscles and aponeuroses are also sutured with buried chromic gut — and the skin and fascia with silkworm gut. After-treatment. — As these abscesses are nearly always of tubercular origin, an indefinite recumbent posture should be observed subsequently to operation, for usually a period of about six months, in either bed or spinal carriage. The abscess may refill with purely tubercular products and require to be again treated in the same way as before. On the other hand, the originally tubercular involvement may become the site of a mixed infection and require open treatment, an unfortunate sequence to be especially guarded against. Comment. — (1) The abscess may be approached almost equally well from an incision on either side of the spine, though somewhat more conveniently from the right side — while the peritoneum is somewhat less exposed on the left. (2) The difficulty of the operation is much increased by thickness of the patient's back. The length of the incision may need to be much increased, or a transverse cut added to it. (3) Great care is necessary to avoid wounding the lumbar arteries, the abdominal branches of which generally run behind the quadratus lumborum — except that from the first (and sometimes those of one or two others) which runs in front. Avoid them, and the trunks from which the)' arise, by keeping close to the transverse processes. The main vessels pass between the transverse processes, for which reason the spine is more safely reached following along a transverse process. (4) While special care should be taken to avoid doing so, there should not be much danger of wounding the peritoneum — or even opening up the subperitoneal connective tissue, both risks being less by incising close to the transverse processes. (5) If carious and necrosed bone be encountered, such destroyed bone should be curetted away, or removed as sequestra with properly shaped instruments, and the debris irrigated out. (6) If much angular deformity of the spine exist, the last rib and iliac crest may be so near each other, or actually overlap, as to make the operation very difficult or impossible, though in such extreme cases operation is generally contraindicated. (7) Iodoform emulsion thrown 690 OPERATIONS UPON THE SPINE AND SPINAL CORD. into the sac, and the excess squeezed out, after rubbing its walls, is sometimes used before suturing. (II) In the Dorsal Region. (A) The operation of costo-transversectomy best exposes the vertebra; in this region and is performed in the following manner: — A vertical incision, 3 to 4 inches (8 to 10 cm.) in length, is made about one-half inch (1 cm.) from Fig- 537-— Costo-transversectomy for Exposing the Bodies of the Dorsal Ver- tebra: — I. — Exposing thr Rib and Transverse Process: — A, A, The dorsal muscles displaced toward the median line; B, C, The flaps of soft parts retracted respectively upward and outward, and downward and outward; D, Subperiosteal exposure of rib and transverse process; E, Excision of vertebral end of rib with Gigli saw; F, Line of similar excision of trans- verse process of vertebra. the median line, its center being opposite the center of involvement. A second incision is made from the first (beginning at the center of involvement) and is carried over the rib to be partially excised (Fig. 536, A) . The incisions are carried through skin, fasciae, and muscles. The two flaps made by these inci- sions are turned aside (Fig. 537). The muscles and aponeuroses are levered from the spinal groove (made by the transverse processes and laminae — and TREATMENT OF ANTERIOR VERTEBRAL TUBERCULAR OSTEITIS. 691 corresponding with the vertical incision) ; — and from the transverse processes and ribs (corresponding with the oblique incision). The transverse process is excised at its base with Gigli saw or bone-pliers and torn away. The rib is exposed subperiosteally, most carefully, with curved periosteal elevator — and is then resected about 2 \ inches (6 cm.) from its extremity and removed — the head remaining attached to the vertebrae if its removal be unnecessary or difficult — thus giving access to the vertebrae for curettage and drainage (Fig. 538). Fig. 538. — COSTO-TRANSVERSECTOMY FOR EXPOSING THE BODIES OF THE DORSAL VER- TEBR.+;: — II. — Exposing the Body of the Vertebra: — A, A, B, C, D, As in above figure; G, right side of body of vertebra; H, Vena cava; I, Pleura; the sawn ends of rib and transverse process are seen in section. The incised periosteal membrane is shown drawn apart by three small retractors. (B) Lambotti's operation is an osteoplastic method and is performed as follows: — (1) Elevation of Osseo-musculo-cutaneous flap; — the patient lies upon his left side — a vertical incision is made on the right, opposite the angles of the ribs, and two horizontal incisions are made from the ends of this, extend- ing toward the spine, making a rectangular flap. The flap is then raised — the spines are cut at their bases — and the detachment of the flap is continued as far as the left transverse processes. A flap is thus raised, consisting of skin, fascia, aponeuroses, muscle, spines, and periosteum of the laminae. The bottom 692 OPERATION'S UPON THE SPINE AND SPINAL CORD. of thi wound is formed by lamina' and the right ribs and transverse processes. (2) Laminectomy; — Resect the lamina? with a Doyen saw — and thus one reaches the transverse process. (3) Resection of Extremities of Right Ribs; — - Fig. 539. — Displacement of the Cord to Expose its Anterior Aspect or the Spinal Canal; also showing Intraspinal Section of Nerves and Repair of Severed Nerves: — A, Tenaculum forceps holding back composite flap; B, B, Retraction hooks lifting cord from spinal canal and displacing it laterally; C, C, Sutures placed ready to repair severed nerve-roots; D, Half-button of bone bitten from lower margin of last lamina in flap by rongeur forceps; E, Similar half-button bitten from upper margin of next stationary lamina below, the two half- buttons forming a circular opening, when in contact, for drainage; F, Vascular fatty areolar tissue covering membranes. this is done subperiosteally, guarding the pleura and cutting them 1^ inches (4 cm.) from the spine and tearing them away from their articulation by torsion. According to the extent of the caries, one resects from one to four ribs. The TREATMENT OF ANTERIOR VERTEBRAL TUBERCULAR OSTEITIS. 693 removal of two ribs gives quite a large space — in which the pleura is pushed back and the lateral aspect of the vertebras reached. (4) Resection of the Vertebral Bodies; — In order to expose the intraspinal aspect of the Vertebral bodies, two or three nerves on the right are temporarily resected, which easily exposes the meningo-medullary furrow upon the retraction of the cord. The vertebral bodies are thus exposed — and may be attacked with gouge or curette, without danger to the mediastinal organs. (5) Closure of the Wound; — the cord is replaced — the cut nerves are resutured with catgut — and the composite flap is replaced and sutured — temporary drainage being used or not, according to indication. (Ill) In the Cervical Region. The operation is here performed as for cold abscess of that region, which has been just described. Incision is carried along the posterior border of the Fig. 540.— Spinal Angularity Resulting from Pott's Disease:— A, Disintegrated and solidified vertebrae, causing angularity; B, Compressed and atrophied cord; C, Line of section of bone (which is made by chisel or gouge after exposure and retraction of cord) so planned as to make spinal canal straighter and larger. (Modified from Urban.) sterno-mastoid, opening its sheath. The muscle is retracted anteriorly. Opening up the space behind the sterno-mastoid, one works toward the trans- verse processes as rallying points, and then works further inward upon the vertebral bodies, behind the prevertebral muscles — and, therefore, behind the sympathetic. The general method of treating the seat of disease is by curettage, removal of sequestra, and the ablation of fungosities — followed or not by drainage. The drainage is either prevertebral — trans-somatic (that is, through the bodies of the vertebra?) — or pre-medullary (in those case- in which the bodies have been destroyed). 694 OPERATIONS UPON THE SPINE AND SPINAL CORD. In all cases in which the spinal column may have been weakened by the combined disease and operation, some form of metallic or plaster brace should re-inforce the dressing. Generalizations of Treatment. — General Comment. — (1) Where bony angularity compresses the curd in front, as is usually the case, if re- traction laterally of the cord does not expose the site of pressure, tem- porarily resect the necessary nerves and resuture them at the end of the operation (Fig. 539). (2) The angularity of bone may be erased or chiselled after retracting the cord (Fig. 540). (3) Do not open the dura in operating for Pott's disease, if avoidable, as the tubercular infection may be spread to an otherwise uninvolved structure. (4) If the cord be pressed upon by scar or granulation tissue, or tubercular or carious masses, these are to be scraped or cut away until the cord is made comparatively smooth and pulsation in it is detected, or at least until it is evident that the constriction has been removed. To accomplish this, the cord is displaced to first one side and then the other by a blunt hook. (5) While opening the dura is to be avoided, as mentioned above, if cause of constriction cannot be otherwise located and appears to be intra-thecal, it is best to open the membranes rather than close the wound in doubt. (6) Especially in angulation of the spine, or adhesions between dura and bone, the close proximity of the cord to the laminae is to be expected in opening the canal. (7) The extra-dural plexus is generally obliterated in Pott's disease — hence hemorrhage is less apt to occur from this source. (8) All drainage is to be avoided in tubercular diseases if at all possible — as mixed infection is so apt to occur before the long course of the tubercular trouble is at an end — and it is for this reason that the dissection out of abscess and diseased bones and the closure of the wound (or even the closure of a curetted abscess sac) are so desirable. (9) In operating by the costo-transversectomy method it would be better, unless the lesion were not accessible from this side, to go in on the left, as it would probably be easier to recognize the aorta from the abscess than the vena cava from the abscess. (10) In closing off the neck of a chronic abscess sac the sutures should be placed deeply just within the neck. (n) The osteoplastic method of resec- tion is pre-eminently to be used in exposing the cord in Pott's disease, as it does not, like laminectomy, remove any portion of the already weakened spinal column. (12) The spinous processes have been drilled and wired, as well as the laminae and transverse processes. (13) One may often learn much of the nature of the deformity by means of the x-ray plates — and thus be guided in the steps of the operation. NOTE. For operations upon Bones, Muscles, Joints, Ligaments, Arteries, Veins, and Nerves of the Spinal Region, see General Surgery. CHAPTER III. OPERATIONS UPON THE NECK. I. THE LARYNX. SURGICAL ANATOMY OF THE NECK. For Surgical Anatomy of the antero-lateral region of the Neck, see under ''Lymphatic Glands and Vessels," page 149. For Surgical Anatomy of the posterior region of the Neck, see under "Spine and Spinal Cord," page 630. SURGICAL ANATOMY OF THE LARYNX. Situation. — Lies in upper forepart of median aspect of neck — below tongue and hyoid bone — in front of pharynx — and between large vessels of neck. Relations. — Anteriorly, skin and cervical fascia; — Posteriorly, sepa- rated from fourth, fifth, and sixth cervical vertebrae and prevertebral muscles by laryngeal portion of pharynx; — Laterally, sternohyoid; sternothyroid; thyrohvoid; superior end of lateral lobe of thyroid; portion of inferior con- strictor; — Superiorly, opens into pharynx; — Inferiorly, opens into trachea. Arteries. — Superior laryngeal branch of superior thyroid; inferior laryn- geal branch of inferior thyroid; dorsalis linguae of lingual. Veins. — Empty into superior, middle, and inferior thyroid veins. Lymphatics. — Drain into carotid glands and into glands in front of cricothyroid membrane, or into inferior laryngeal glands. Nerves. — From superior laryngeal and recurrent laryngeal branches of the pneumogastric, and from the sympathetic. SURFACE LANDMARKS AND GENERAL SURGICAL CONSIDERATIONS. The contour of the thyroid and cricoid cartilages, with the intervening cricothvroid membrane, can generally be outlined in the average neck — with the thyrohyoid membrane extending upward from the upper border of the thyroid cartilages, and the rings of the trachea extending downward from the cricoid cartilage. The height of the cricothyroid space is about 1 cm. (nearly \ inch) in the average adult. The internal (sensory) branch of the superior laryngeal nerve pierces the thyrohyoid membrane above the superior laryngeal artery. The external branch (principally motor) of the superior laryngeal is distributed to the cricothyroid muscle and to the mucous membrane. The inferior or recurrent laryngeal (motor) runs up in the groove between the trachea and esophagus, and reaches the larynx below the inferior constrictor and just behind the cricothvroid articulation, where it divides into anterior and posterior branches. The cricothyroid artery (branch of superior thyroid) crosses transversely 6 95 696 OPERATIONS I PON THE NECK. over the upper part of the cricothyroid membrane, and is the chief artery complicating laryngotomy. Small venous trunks cross the laryngeal region irregularly, chiefly emptying into the superior thyroid vein. INSTRUMENTS. Scalpels; scissors, sharp and blunt, curved and straight; forceps; dis- secting, toothed, and artery-clamp; tenacula; wound hooks; laryngotomy Fig. 541. — Positions of Incisions for Opening the Laryngotracheal Tract:— A, Hyoid bone; B, Thyroid cartilage; C, Cricoid cartilage; D, Isthmus of thyroid gland; E, Anterior belly of digastric; F, Mylohyoid muscle; G, Sternohyoid muscle; H, Sternothyroid muscle; I, Sternocleidomastoid muscle; J, Omohyoid muscle; K, Thyrohyoid membrane; L, Cricothyroid artery upon cricothyroid membrane; M, N, Branches of superior and inferior thyroid arteries (the lower arteries are not lettered); O, Inferior thyroid veins; P, Pneumogastric nerve; Q, Suprathyroid laryngotomy (subhyoid pharyngotomy) ; R, Median thyrotomy; S, Laryngotomy; T, High tracheotomy; Y, Low tracheotomy. tubes; tampon cannula?; artificial larynx; laryngeal forceps; artificial feather for cleansing tube; grooved director; mouth-gag; tongue forceps; tongue depressor; wound retractors; dilator for laryngeal wound; laryngeal aspirator; spatulae; needles, curved and straight - needle-holder; sutures and ligatures, LARYNGOTOMY. 697 silk and gut; traction-ligatures; O'Dwyer's intubation set; shield for mouth and eyes of operator; tracheotomy tubes. LARYNGOTOMY. Description. — Laryngotomy, or Infrathyroid Laryngotomy, consists in the opening of the larynx through the cricothyroid membrane. The super- ficial incision is made in the median line of the neck, and the opening into the larynx is made transversely through the cricothyroid membrane, followed by the introduction of a special laryngotomy tube flattened from above down- ward so as to present an oval opening. Preparation. — The neck is shaved, if covered by hair. Fig. 542. — Laryxgotoity : — A, Tenaculum steadying thyroid cartilage; B, Cricoid cartilage; C, Cricothyroid muscle; D, Sternothyroid muscle; E, Sternohyoid muscle; F, Knife in act of increasing opening in cricothyroid membrane after stab-incision; G, Forceps grasping margin of incised cricothyroid membrane; H, H, Retractors retracting sternohyoid and sternothyroid muscles. Position. — Patient supine, shoulders supported and head thrown back, so as to round out and tense the laryngeal region. Landmarks. — Thyroid and cricoid cartilages and cricothyroid space. Incision. — A vertical incision is made exactly in the median line, from 3 to 4 cm. (about i^ to 1^ inches) long — beginning over the lower part of the thvroid cartilage, passing over the cricothyroid membrane, and ending at the lower border or just below the cricoid cartilage — while the larynx is steadied in the middle line between the left thumb and forefinger. (See Fig. 541, C.) Operation. — (1) Incise the skin, superficial fascia, platysma, and cervical fascia — dividing between ligatures any veins encountered. (2) Recognize the interval between the sternothyroid and cricothyroid muscles and open up this interval bv blunt dissection, thus exposing the cricothyroid membrane (see Fig. 542). Retract the tissues laterally. Divide the cricothyroid artery 698 OPERATIONS UPON THE NECK. between two ligatures. (3) Steady the larynx by means of left thumb and forefinger and incise the cricothyroid membrane laterally, carefully stabbing, with a narrow, sharp knife, into the lumen at one side and incising trans- versely just above the cricoid cartilage in the act of withdrawing the knife. (4) Seize and evert one lip of the laryngeal wound with toothed forceps, and, parting the lips of the wound by a special laryngeal dilator, insert the oval laryngeal tube into the larynx, so that its greatest width corresponds with the length of the wound. Attach tube to the neck by means of a band. (5) If the superficial wound be long, its ends may be sutured, leaving less of an area for granulation. (6) A dressing should be applied between the flange of the tube and the neck. Comment. — Stab well into the lumen of the larynx (while guarding against stabbing too far), so as to avoid pushing the mucous lining of the larynx ahead of the knife and really not entering the lumen at all. Cut very near the cricoid cartilage, especially if compelled to operate hastily — as the cricothyroid artery runs nearer the lower border of the thyroid cartilage. Sometimes the cricothyroid membrane is incised vertically, just as the superficial wound — additional room being gotten by dividing the cricoid cartilage in the same line. The above is, however, preferable. Laryngotomy and Tracheotomy compared; — Laryngotomy is rapidly and easily performed — it is the operation where great haste is necessary and few instruments and limited assistance are at hand. It is inapplicable under thirteen years (the space being too narrow). It is more difficult to insert a proper laryngotomy tube than a tracheotomy tube. The vocal cords are nearer and are more apt to be injured by wearing a laryngotomy tube. Laryn- gotomy is not applicable where a tube must be worn for some time. In Laryngotomy the cricothyroid artery must be avoided or tied. THYROTOMY. Description. — Division of the thyroid cartilage, partially or completely, in the median line, in order to expose the cavity of the larynx. Resorted to for the removal of foreign bodies and growths. Vocalization is apt to be permanently involved. The operation is very similar to Laryngotomy. Preparation. — As in Laryngotomv. In addition, a preliminary Trache- otomy is done (preferably several days in advance). (A preliminary laryngo- tomy may be done, but is less satisfactory.) The trachea should be plugged, or a tampon cannula used after the tracheotomy. Position. — As in Laryngotomy. Landmarks. — Hyoid bone, thyrohyoid membrane, thyroid cartilage, cricothyroid membrane and cricoid cartilage. Incision. — A vertical incision is made exactly in the median line, begin- ning at the lower border of the hyoid bone and ending over the cricoid cartilage — steadying the larynx between the left thumb and forefinger (see Fig. 541, B). Operation. — (1) Incise skin, superficial fascia, platysma, and cervical fascia — encountering the terminal branches of the superficial cervical and inframaxillary nerves, the communicating branches between the anterior jugular veins, and some small superficial arterial and venous branches. (2) Open up the connective-tissue interval between the sternothyroid and crico- thyroid muscles by blunt dissection, exposing the thyroid cartilage and thyro- hyoid and cricothyroid membranes. (3) Divide the thyroid cartilage care- fully and exactly in the median line, by cutting from above downward and from without inward, with a sharp, fairly heavy, rounded knife. If the upper COMPLETE LARYNGECTOMY. 699 margin of the thyroid cartilage can be left uncut, better subsequent adjust- ment is obtained — but if necessary, not only the entire thyroid may be divided but as much of the thyrohyoid and cricothyroid membranes as indicated. This manner of division is safer than inserting the point of a knife below the thyroid and cutting upward from within. In calcined cartilages a small saw may be necessary. (4) The two aire of the thyroid cartilage are now drawn aside with small, blunt hooks, exposing the interior of the larynx and enabling the special object of the operation to be carried out. If the alae cannot be separated sufficiently for the object sought, divide the thyrohyoid or crico- thyroid membranes, or both, transversely near their cartilages. (5) Having accomplished the object of the operation, the severed borders of the thyroid are united by chromic catgut — (and the margins of membranes if cut). The external wound is left open in the center, having been closed at the ends. Temporary drainage is used. The tracheotomy tube is retained for several days. COMPLETE LARYNGECTOMY. Description. — Excision of the entire larynx. Its removal may or may not be followed by the substitution of an artificial larynx. Generally resorted to for malignant disease. Preparation. — As for Laryngotomy. In addition, a preliminary low tracheotomy should be done ten days or one week in advance. Some form of tampon cannula should be inserted into the tracheotomy wound just before the major operation. Position. — Patient supine, shoulders elevated, head thrown back, neck prominent over a cushion or sand-bag. Surgeon to patient's right. Assistant opposite surgeon. Landmarks. — Hyoid bone, thyrohyoid space, larynx, cricoid cartilage and upper tracheal rings, sternomastoid muscles. Incision. — (1) Vertical incision, exactly in the median line, extending from the center of the thyrohyoid membrane to the second or third tracheal rings; — (2) Transverse incision, carried across at upper limit of vertical incision, passing from one sternomastoid muscle to the opposite one. (See Fig. 548, B.) Operation. — (1) Having carried the above incisions through skin, superfi- cial fascia, platysma, and cervical fascia; ligated the superficial vessels; and encountered branches of the superficial cervical and inframaxillary nerves, the two rectangular flaps thus outlined are turned outward and downward, exposing the anterior margins of the sternomastoids, thyroid and cricoid cartilages, and trachea. (2) Divide, between double ligatures, the superior thyroid arteries, as they lie at the posterior border of the thyrohyoid muscles, near the superior margin of the thyroid cartilage. Similarly ligate and divide the inferior thyroid arteries at the posterior border of the sternothvroids. at the lower edge of the larynx. The thyroid veins encountered are similarly dealt with. (3) The cricothyroid, sternothyroid, and thyrohyoid of one side, together with the adjacent soft parts, are retracted outward, while the larynx is retracted to the opposite side. (4) The inferior constrictor muscle of that side is now severed from the thyroid cartilage bv a curved blunt dissector and scissors — the larynx is drawn forward and the tissues between the cut inferior constrictor and the ends of the superior thyroid arteries are divided • — the superior laryngeal nerve is cut — and the thyroid gland is retracted out of the way. (5) The larynx is now drawn to the opposite (freed) side and 700 OPERATIONS UPON THE NECK. the same process of separation is repeated upon the second side. (6) Sever the thyrohyoid membrane and the thyrohyoid ligaments — divide the extra- laryngeal attachments of the epiglottis while putting the parts on the stretch (thyro-epiglottic ligament, hyo-epiglottic ligament, glosso-epiglottic folds, and aryteno-epiglottic folds). (7) Draw the larynx forward and complete the division of the connections of the larynx to the pharynx and esophagus, from side to side and from above downward, guarding the esophagus from injury. (8) If the trachea be bound in situ by the preliminary tracheotomy, it will retain its position when cut — if not, it is to be steadied by two silk sutures — and then divided transversely between the cricoid cartilage and the first ring of the trachea, from behind forward. (9) Secure the upper end of the trachea to the surrounding integument by a few interrupted silk sutures. A deeper layer of silver wire or silk sutures may be put in to secure the deeper part of the trachea to the deeper surrounding parts — and another layer uniting the mucous membrane of the trachea to the skin. (io) Suture the transverse part of the wound, packing the rest. The tampon cannula is to be left in situ for one or two days, then replaced by the ordinary tracheotomy tube. The patient is fed through a stomach-tube at first. An artificial larynx is to be inserted in from four to six weeks, if one be used. Comment. — (a) Some surgeons do the tracheotomv only at the time of the main operation, (b) All bleeding vessels are ligated or clamped as en- countered, (c) It may be necessary to divide the isthmus of the thyroid gland between ligatures, (d) All enlarged glands encountered are to be removed, (e) Hug the cartilages throughout the entire operation, (f) The larynx may be detached from below upward, dividing transversely below the cricoid cartilage, (g) If in doubt as to the needs of removing the entire larynx, split the larynx and thoroughly examine, (h) The epiglottis is best removed — some leave it — it may interfere with the artificial larynx — or become the seat of returning disease, (i) The cricoid cartilage is best away. Some prefer to leave it as a support to an artificial larynx. Others think its retention interferes with swallowing. PARTIAL LARYNGECTOMY. Description. — Excision of one-half (in the middle line) of the larynx. Indicated in the partial involvement of the organ. Preparation. — Same as for Complete Laryngectomy, including the pre- liminarv tracheotomv. Position — Landmarks. — Same as in the complete operation. Incision. — Same as for total Laryngectomy, except that the transverse portion of the incision is made only upon one side. (See Fig. 548, B.) Operation. — Same, practically, as for the total excision, except that the thyroid cartilage is divided dowm its center and the involved half removed after being separated from its soft parts by carefully hugging the cartilage during the freeing. The superior cornu of the thyroid cartilage is divided at its base by forceps. The epiglottis is left, the aryteno-epiglottic fold of the involved side being severed near WrrSberg's cartilage — though one-half of the epiglottis may be left and one-half removed. The cricoid cartilage may be left. The after-treatment is practically the same as for the total removal, except briefer. INTUBATION OF THE LARYNX. 701 INTUBATION OF THE LARYNX. O'DWYER'S OPERATION. Description. — The introduction, by a special instrument (introductor), into the larynx of a special metallic tube — which, upon the accomplishment of the object, after a shorter or longer time, is removed by another form of special instrument (extractor). Intubation is used in cases of impeded breathing arising in the larynx or upper trachea from causes other than foreign body. Operation. — (1) Supposing the case to be a child — the nurse sits upright in a straight-back chair — the child, enveloped in a sheet or large bath-towel, thus pinioning its arms, is held upright in the nurse's right lap, her right arm passing forward around the child's shoulders and chest, her left forward around its hands and abdomen — its legs are placed between her knees — its head is thrown slightly backward over the nurse's right shoulder, and is steadied by an assistant standing behind the nurse — the child's mouth is gagged on the left side and the gag held by the assistant's left hand. (2) The surgeon, standing in front of the child (his mouth, eyes, and nose pro- tected from the cough, etc., of the patient, in contagious cases) — inserts his left index into the throat until in contact with the epiglottis, which he elevates by hooking forward and presses against the root of the tongue with the tip of this finger, at the same time also drawing the base of the tongue slightly forward. The tube, with its contained obturator attached to the introductor, is passed into the mouth parallel with the left index as a guide (the handle of the instrument, at this stage, being about parallel with the chest-wall) and is directed in the necessary curve by elevating the handle of the introductor — and is guided through the rima glottidis by the tip of the finger which has drawn the epiglottis forward. As soon as the instrument is felt to be engaged within the larynx, the left index-finger is shifted to the shoulder of the tube and aids in gently pushing it down into place between the cords. The obtu- rator is then detached from the tube by a special mechanical movement, controlled within the handle of the instrument, and is withdrawn together with the introductor. If the safety-thread (which has been previouslv intro- duced through the eye of the laryngeal tube) be removed, the left index remains in contact with the tube until the thread is withdrawn. The thread is often retained as a means of hasty and easy withdrawal in case of need, and is tied about a tooth or the ear. (3) To withdraw the tube, let the same position of patient, surgeon, assistant, and nurse be assumed as before — similarly draw the epiglottis forward with the left index — and, having similarly guided the beak of the extractor into the lumen of the laryngeal tube, expand the blades of the beak and withdraw the tube. If the thread have been left in situ, the tube may be withdrawn by it. Comment. — Always be ready, in advance, to do an immediate trache- otomy — in the event that intubation cannot be performed, or that tube get into trachea, or that membrane be protruded ahead of the tube and impede trachea and tube. To feed the child while the tube is in the larynx — place it upon its back in the nurse's lap — let its head bend over her knee, lower than its shoulders — feed it fluid food from a bottle on to the roof of its mouth (which is now lower than the floor) — the liquid will then flow over the soft palate on to the posterior pharyngeal wall, and thus nothing pass over the laryngeal tube. Some children, however, feed naturally without trouble. The shoulders of the laryngeal tube are grasped by the superior or false vocal cords. 7°2 OPERATK >NS UPON THE NECK. OTHER OPERATIONS UPON THE LARYNX. Suprathyroid Laryngotomy. — Same as Subhyoid Pharyngotomy (page 709). Sometimes employed to expose the upper part of the larynx and the region of the epiglottis. Laryngo-tracheotomy. — Larynx and trachea are both opened in one continuous median line — where more room is required than furnished by either laryngotomy or trache- otomy alone. Tamponing of Larynx. — The placing of gauze or sponge packing over the entrance of the larynx in order to prevent the entrance of fluids or blood into the air-passages during operations about the oral, pharyngeal, and nasal cavities — a preliminary tracheotomy having been done. Introduction of Artificial Larynx. — After the parts have healed, following a total laryngectomy, an artificial larynx is sometimes inserted through the wound in the neck — a mechanical contrivance having a longer tracheal tube which fits into the trachea, a shorter pharyngeal tube passing up toward the site formerly occupied by the larynx, and an external protected opening occupying the cervical wound, and a vibrat- ing apparatus for speech. Operation for the Removal of Foreign Bodies. — Foreign bodies are removed either by means of instruments introduced into the larynx through the rima glottidis by way of the mouth — or by opening the cavity of the larynx from without by means of one of the operations above described. Laryngoscopy. — Examination of the larynx by means of a laryngoscopic mirror introduced through the mouth. II. THE TRACHEA. SURGICAL ANATOMY. Situation. — The trachea extends from lower border of fifth cervical vertebra above, where it is continuous with the larynx, to fourth or fifth dorsal vertebra below, where it bifurcates into right and left bronchi. Its length is from 10 to 13 cm. (4 to 5 inches) — its width from about 2 to 2.5 cm. (f to 1 inch). It lies in a bed of lax connective tissue. Relations. — (a) Cervical portion, — anteriorly ; skin; superficial cervical fascia; anterior jugular veins; communicating branch between anterior jugular veins; inferior thyroid veins; thyroidea ima artery (when present); sternohyoid and sternothyroid muscles, separated by deep cervical fascia, and partly overlapping sides of trachea; isthmus of thyroid gland; thymus gland (or its remains). Posteriorly; esophagus. Laterally; lateral lobes of thyroid gland (especially on left); inferior thyroid arteries; recurrent laryngeal nerves; sheath of common carotid, internal jugular and pneumo- gastric. (b) Thoracic portion, — anteriorly; sternum; remains of thymus; origins of sternohyoid and sternothyroid muscles; left innominate vein; transverse arch of aorta; innominate artery; left common carotid artery; deep cardiac plexus; left recurrent laryngeal nerve. Posteriorly; esophagus. Laterally; lies between the pleural sacs; pneumogastrics. Arteries. — From inferior thyroid branch of thyroid axis. Veins. — End in thyroid plexus. INSTRUMENTS USED IN OPERATIONS UPON THE TRACHEA. 703 Nerves. — From trunk of pneumogastric; recurrent laryngeal branch of pneumogastric; sympathetic. SURFACE FORM AND LANDMARKS. The isthmus of the thyroid gland crosses the second and third tracheal rings in the adult. It is generally higher in the child. In an average adult, about 2 cm. (f inch) of additional trachea is drawn up into the neck in full extension of the cervical region. In infants under two years, the thymus gland extends upward nearlv or quite to the lower border of the thyroid gland. Small venous trunks cross the tracheal region irregularly, chiefly emptying into the superior thyroid veins. A communicating vein between the superior thyroid veins crosses the trachea above the isthmus of the thyroid gland. Arteria thyroidea ima, when present, passes up from the innominate along the anterior surface of the trachea. The upper portion of the trachea is comparatively superficial. The lower portion is comparatively deep and the vascular relations more com- plicated. GENERAL SURGICAL CONSIDERATIONS. Tracheotomy may be done in three sites — (1) Above the isthmus of the thyroid gland, or High Tracheotomy (the operation of election, because the trachea is here more accessible), — (2) Below the isthmus, or Low Trache- otomy, — and (3) Behind the isthmus (by its ligature and removal of the isthmus — hardly a separate operation, but generally added to one of the others where more room is required). Structures of the anterior aspect of the neck more or less involved in tracheotomy above the isthmus of the thyroid, — skin; superficial cervical fascia; superficial cervical nerves; inframaxillary nerves; cutaneous arteries; anterior jugulars and communicating vein; deep cervical fascia; superior thyroid arteries and veins; tracheal layer of deep cervical fascia. Structures of the anterior aspect of the neck more or less involved in tracheotomy below the thyroid isthmus, — the superficial structures men- tioned above; communicating branch between the anterior jugular veins larger; sternothyroids closer; inferior thyroid veins larger; arteria thyroidea ima possibly present; innominate artery may cross seventh tracheal ring; trachea deeper and more movable; thymus gland present up to second year. The innominate and common carotid arteries may be in the way of a low tracheotomy. The thymus gland or the isthmus of the thyroid gland is to be incised, between ligatures, if in the way. If the tracheal fascia be not well incised, there is a liability of working between the fascia and trachea rather than in the latter. INSTRUMENTS USED IN OPERATIONS UPON THE TRACHEA. Scalpels: scissors, sharp and blunt, curved and straight; forceps, dis- secting, toothed, and artery-clamp; tenacula; wound hooks; tracheotomy tubes; tampon cannula?; tracheal forceps; artificial feather for cleansing tube; grooved director; wound retractors; dilator for tracheal wound; tracheal 7°4 OPERATIONS UPON THE NECK. aspirator; needles, curved and straight; needle-holder; sutures and ligatures; silk and gut; traction ligatures; Langenbeck's double tracheotomy hook, shield for mouth, nose, and eyes of operator. HIGH TRACHEOTOMY. Description. — The opening of the trachea above the isthmus of the thyroid gland. This is the operation (if choice, because of the greater acces- sibility of the trachea here, and because of the fewer important relations. Preparation. — The neck is to be shaved, if necessary. Position.— Patient supine, at edge of table, shoulders elevated, head thrown back, neck made prominent by being bent well backward over a Fig. 543. — High Tracheotomy: — A, Tenaculum steadying cricoid cartilage; B, Retractor drawing down thyroid isthmus from tracheal rings; C, Sternohyoid muscle; D, Sternothyroid muscle; E, E, Sternohyoid and sternothyroid muscles retracted from median line; F, Forceps drawing outward one lip of incised trachea; G, Knife in act of increasing tracheal opening after stab-incision. cushion or sand-bag, chin kept rigidly in median line. Surgeon to the right of patient. Assistant opposite surgeon. Landmarks. — Median line of neck; cricoid cartilage; upper rings of trachea. Incision. — Vertical incision made exactly in the median line of the neck, extending from the upper border of the cricoid cartilage downward for 2.5 to 4 cm. (about 1 to ij inches) — the skin and trachea being steadied between the left forefinger and thumb on either side. (See Fig. 541, D.) Operation. — (1) Divide skin, subcutaneous fatty areolar tissue, possibly the platysma, and the anterior layer of the cervical fascia, cutting between double ligatures any communicating branches between the anterior jugular veins. (2) Recognize and open up the cellular interval between the sterno- HIGH TRACHEOTOMY. 705 hyoid and sternothyroid muscles by clean, full-length cuts — the inner border of these muscles being separated by blunt dissection. All separated tissues are retracted laterally. (See Fig. 543.) (3) Divide the deeper cervical fascia overlying the trachea, cutting between double ligatures any veins crossing the line of incision — a small venous plexus lies over the isthmus, and a trans- verse branch between the superior thyroids, crossing above the isthmus, sometimes occurs — also abnormal branches of the superior thyroid arteries may cross the upper part of the trachea. The isthmus of the thyroid gland is exposed, and, if in the way, drawn down by a hook. The tracheal rings are felt for by the finger-tip and exposed to view. The parts are still steadied laterally by the left thumb and forefinger, until the tracheal rings are well in the field. (4) All bleeding having been controlled and the white rings of the trachea being clearly defined, the trachea is to be steadied preparatorv to opening. For this purpose, a tenaculum, or, preferably, Langenbeck's double tenaculum hook, is fastened by its point into the anteroinferior aspect of the cricoid cartilage and given to an assistant, who draws the cricoid cartilage upward and forward directly in the median line, gently following the play of the larynx, thus steadying the trachea by making it tense. The tip of the surgeon's left forefinger feels for the upper border of the isthmus of the thyroid gland — and, with a sharp, slender knife, held with its cutting- edge upward, a quick, limited stab is made into the median line of the trachea, just above the thyroid isthmus, and the trachea divided upward toward the chin, to but not into the cricoid cartilage, in the act of withdrawing the knife. (5) Gently seize the right lip of the tracheal wound with toothed forceps held in the left hand, and evert it just sufficiently to cause a slight gap between the cut margins — into which gap gently, quickly, but steadily insert the tracheotomy tube — still steadying the cricoid with the tenaculum until the tube is in place. (6) Having seen that all hemorrhage is controlled, the tube is tied in place by bands passing around the neck, a dressing being applied between skin and instrument. The upper and lower ends of a long wound may be united by suture, to lessen the area to be closed bv granulation. Comment. —Observe the following, — Incise only in the median line; See and feel bare tracheal rings before opening trachea; Be sure the opening is made into the trachea, and not into the surrounding areolar tissue. If possible, control all bleeding before incising the trachea — although often venous hemorrhage, otherwise difficult to stop, will cease as soon as air enters the lungs freely through ihe tracheal wound. Where the thyroid isthmus encroaches upon the field, draw it down with a hook or special retractor. Where the tissues of the neck are very thick, outward retraction bv thread or instrument retractors aids in exposing the trachea and keeping the bottom of the wound freer from blood. It is easier to insert the tube if the neck be straightened just before everting the lip of the tracheal wound, to relax the tension of the structures. The lips of the tracheal wound may be held apart by a tracheal dilator while the tube is being inserted, or by two tenacula. Modification. — Where it is found that the isthmus of the thyroid gland encroaches too much upon the site of operation to avoid it — or in those cases in which it is elected to perform tracheotomy beneath the isthmus — having incised and separated the tissues down to the isthmus in the usual way, cut vertically directly through the center of the isthmus — immediately seize each cut half with clamp-forceps and allow the clamped ends to drop away from the trachea without any special effort to further dissect or retract them from 45 706 OPERATIONS UPON THE NECK. the trachea unless the opening be encroached upon. These cut portions are subsequently gut ligatured. If time allow, the isthmus may be doubly ligated in situ and divided between these ligatures. Modification. — Hose's Bloodless Method of Tracheotomy. — Make a median vertical incision from the middle of the thyroid cartilage downward for 4 to 5 cm. (about ij to 2 inches) — the soft parts are retracted laterally — incision is made through the deep layer of the cervical fascia along the upper border of the cricoid cartilage, covering the trachea and binding down the thyroid isthmus — this fascia is detached by blunt dissection and retracted downward bv a special hook, carrying the isthmus and vascular supply covering the front of the trachea. The trachea being thus bared, the opera- tion is completed as above. LOW TRACHEOTOMY. Description. — Inferior or Low Tracheotomy consists in the opening of the trachea below the thyroid isthmus. The trachea is much deeper here and its relations much more important — and subsequent wound complications more serious. Preparation — Position. — As in High Tracheotomy. Landmarks. — Median line of neck; cricoid cartilage; rings of the trachea, recognizing the upper ones, if possible, so as to determine the site of the thyroid isthmus over the second and third tracheal rings. Incision. — Vertical incision is made exactly in the middle line of the neck, extending from the lower border of the cricoid cartilage downward to within 2 cm. (about \ inch) of the sternal notch — while the trachea is steadied by the left forefinger and thumb on either side. (See Fig. 541, V.) Operation. — (1) Divide skin, subcutaneous fatty areolar tissue, anterior layer of the cervical fascia, cutting between double ligatures communicating veins crossing between the anterior jugulars. (2) Having incised the connec- tive tissue, thicker here than in the high operation, expose and separate the inner borders of the sternothyroids and sternohyoids. (3) Incise the deeper cervical fascia, also thicker here than in the high operation, and divide between double ligatures the communicating veins between the inferior thyroids, and whatever other vessels may be encountered, including the thyroidea ima artery, if present — retracting all tissues laterally. (4) The trachea is brought within sight and touch — hemorrhage is controlled by pressure forceps — the trachea is caught by Langenbeck's double tenaculum hook, or an ordinary tenaculum, and lifted upward and forward — the thyroid isthmus being re- tracted upward if necessary — and a sharp, slender knife is thrust with a con- trolled stab-movement into the trachea and made to cut through three or four rings in an upward direction as it is withdrawn. (5) The tracheotomy tube (which must have a deeper curve than for the high operation) is inserted as in the higher operation. (6) The treatment of the tube and wound are the same as in the high operation. OTHER OPERATIONS UPON THE TRACHEA. Tracheo-laryngotomy. — An opening, by median incision, involving both the upper rings of the trachea and the cricothyroid membrane of the larynx — performed where more room is required than furnished by either operation alone. INSTRUMENTS USED IN OPERATIONS UPON THE PHARYNX. 707 Tamponing of Trachea. — The use of some form of packing, or some form of inflation, applied around the stem of an ordinary tracheotomy tube, or a special form of tampon cannula, whereby fluids and blood are prevented from entering the lungs during operations upon the oral, nasal, and pharyngeal cavities. Operation for the Removal of Foreign Bodies. — Foreign bodies may be removed by means of special forceps introduced through one of the tracheotomy wounds above described. Tracheoscopy. — Examination of the upper part of the trachea by means of the laryngo- scopy mirror. Thoracic Tracheotomy. — Opening of the trachea in the posterior mediastinum (see page 752). III. THE PHARYNX. SURGICAL ANATOMY OF THE PHARYNX. Situation, Extent, and Structure. — A conical, musculo-membranous sac (consisting of nasal and buccal portions) placed base upward, apex down- ward, behind the nose, mouth, and larynx. It extends downward from base of skull to lower border of cricoid cartilage in front, and fifth (or between fifth and sixth) cervical vertebra behind. It is composed of three coats — Inner Coat, of mucous membrane: — Middle Coat, of pharyngeal aponeurosis (thickest above, where muscles are thinnest; and thinnest below, where muscles are thickest): — Outer Coat, of muscles (inferior, middle, and superior constrictors, reinforced by stylopharyngeus, palatopharyngeus and salpingo- pharyngeus). Relations and Boundaries. — Superiorly, body of sphenoid; basilar process of occipital: — Inferiorly, continuous with esophagus opposite fifth (or between fifth and sixth) cervical vertebra: — Anteriorly (incomplete), attached, from above downward, to internal pterygoid plate, pterygomaxillary ligament, inferior maxilla, tongue, hyoid bone, thyroid cartilage, cricoid cartilage: — Posteriorly, attached, by lax connective tissue, to prevertebral fascia, longi colli, and recti capitis antici majores muscles, and to cervical vertebral column: — Laterally, attached to styloid process and its muscles (styloglossus, stylohyoid, and stylopharyngeus) ; and in relation with common carotid, internal carotid, and ascending pharyngeal arteries, internal jugular vein, glossopharyngeal, pneumogastric, hypoglossal, and sympathetic nerves, internal pterygoid muscle (above) and lateral lobes of thyroid gland. Openings Into. — Two posterior nares; two eustachian tubes; mouth; larynx; esophagus. INSTRUMENTS USED IN OPERATIONS UPON THE PHARYNX. Scalpels; scissors; forceps, dissecting, toothed and artery-clamp; re- tractors; probe; grooved director; tenacula; wound hooks; mouth-gag; tongue forceps; tongue depressor; needles; needle-holder; ligatures and sutures; aneurism-needle. 708 OPERATIONS UPON THE NECK. MEDIAN PHARYNGOTOMY BY MEDIAN* VERTICAL INCISION THROUGH THE MOUTH. Description. — Incision of the posterior pharyngeal wall in the median line, through the mouth. Applicable to cases of retropharyngeal abscess of small size and due to temporary cause (e. g., an acute abscess). Preparation. — Mouth cleansed by frequent antiseptic washings. Position. — Patient on side, head elevated and turned to one side, with mouth dependent. Surgeon in front of patient. Landmarks. — Median line of the prevertebral region; contour of involved region. Operation. — The mouth is gagged and so directed that pus or other fluid will flow out. A straight, sharp bistoury, protected by wrapping except for about i cm. (about \ inch) at its point, is directed in toward the center of the posterior pharyngeal wall, or toward the most fluctuating point, guided by the left forefinger, which marks the site — an incision about i cm. (about \ inch) long is then made vertically in the median line, either upward or downward. The incised wound is not closed by suture, but allowed to drain. LATERAL PHARYNGOTOMY BY CURVED LATERAL INCISION THROUGH THE NECK — KOCHER'S OPERATION. Description. — Incision of the pharynx through the lateral wall of the neck — for the exposure of the lateral wall of the pharynx, together with the tonsil, base of tongue, and retropharyngeal space. Applicable to cases requiring the fullest exposure of the pharynx. Preparation. — Shaving of the neck, if necessary. Cleansing of the throat with antiseptic washes. Position. — Patient supine, shoulders elevated, neck prominent, head to opposite side. Surgeon either in front of, or behind, the neck. Assistant opposite surgeon. Landmarks. — Apex of mastoid process; anterior border of sternomastoid muscle; hyoid bone. Incision. — Begins at the anterior border of the apex of the mastoid process — runs in a slight downward curve, with posterior convexity, crossing the anterior border of the sternomastoid about 2 cm. (about J inch) behind the angle of the jaw — ending at the middle of the hyoid bone. (See Fig. 544, A.) Operation. — (1) Divide the skin, superficial fascia, and platysma along the above line — cutting between double ligatures the external jugular, facial, and temporofacial veins. (2) Expose the submaxillary region — dissect out the submaxillary gland and either throw it upward over the border of the inferior maxilla, or extirpate it — dividing the facial artery between two liga- tures — and preserving, if possible, the auricularis magnus and cervicofacial nerves. (3) The lingual, ascending pharyngeal, and ascending palatine arteries are tied, if necessary, close to their origin — or the external carotid itself. (4) Retract backward the great cervical vessels, with the pneumo- gastric and spinal accessory nerves — draw the hypoglossal nerve upward — the superior laryngeal nerve and superior thyroid artery remaining under the lower margin of the wound. (5) Work up along the internal surface of the inferior maxilla and of the internal pterygoid in the direction of the mucous membrane of the pharynx, in order to preserve the muscles lying anteriorly SUBHYOID PHARVXGOTOMV 709 and connected with the act of swallowing. If the muscles must be sacrificed, so cut them that their innervated ends will be as long as possible — dividing the posterior belly of the digastric and stylohyoid near the hyoid (their supply from the facial entering posteriorly) — the styloglossus near the tongue, avoiding the lingual and glossopharyngeal nerves (unless involved, when they must be divided) lying upon it — the stylopharyngeus near the pharyngeal insertion — and the hyoglossus and mylohyoid, to the extent indicated, near their insertion into the hyoid. (6) The wall of the pharynx will now be exposed, the superior constrictor lying above and the inferior constrictor below. Having well retracted the sur- rounding parts and having incised the con- strictors, forming the lateral boundary of the pharynx, its interior is exposed. (7) Having accomplished the object of the operation, in clos- ing the wound suture up the pharyngeal wall as completely as pos- sible, in so far as the mucous membrane is concerned — leaving the center of the outer wound unsutured and packed down to the mu- cous membrane with gauze, to provide for drainage both from pos- sible leakage from the mouth and from the fluids of the wound — the ends only of the outer wound being closed by suture. Comment. — If a part of the wall of the pharynx be removed, the operation becomes a partial pharyngectomy. Compare this operation with that for exposure of the tonsils through the neck, page 719. Fig. 544.— Incisions Exposing Pharyngo-esophageal Re- gion: — A, Curved lateral incision for lateral pharyngotomy, and for exposure of tonsil, base of tongue, and retropharyngeal space (Kocher's operation); B, Lateral cervical incision for exposing the retropharyngeal space (Chiene's operation); C Incision for cer- vical esophagotomy. SUBHYOID PHARYNGOTOMY BV TRANSVERSE CURVED INCISION THROUGH THE NECK. Description. — Subhyoid Pharyngotomy, or Suprathyroid Laryngotomy, consists in opening the pharynx through the thyrohyoid membrane, just below the hyoid bone. Chiefly done to expose the entrance of the larynx for the purpose of removing foreign bodies or growths from the upper air- passages, or for abscesses at base of epiglottis. Preparation. — As for Lateral Pharyngotomy. Position. — Patient supine, shoulders elevated, head thrown back, neck prominent, resting upon a cushion or sand-bag. Surgeon on patient's right or left. Assistant opposite. 710 OPERATIONS UPON THE NECK. Landmarks. — Hyoid bone, upper border of thyroid cartilage. Incision. — Transverse curved incision along the lower border of the body and greater cornua of the hyoid bone. In very thick necks a vertical incision may have to be added to this. Operation. — (i) Having incised the skin, superficial cervical fascia, and platysma, divide between double ligatures the anterior jugular veins and their branches. Some branches of the superficial cervical and cervicofacial nerves are encountered. The hyoid arteries and veins along the hyoid bone are generally not injured — and the superior thyroid artery is generally avoided, running parallel with the incision. (2) Divide most of the muscles attached to the lower border of the hyoid bone (sternohyoids, omohyoids, and most but not all of the thyrohyoids). (3) The thyrohyoid membrane (its middle and lateral portions) is now exposed — and, together with the subjacent mucous membrane lying between the base of the tongue and the superior border of the epiglottis, is incised along the inferior border of the hyoid bone, while a finger in the mouth guides the knife — keeping rather near the hyoid bone to avoid the superior laryngeal nerves piercing the lateral parts of the thyrohyoid membrane (because of the importance of preserving the sensi- tiveness, and thereby the expulsive power, of the larynx). (4) Seize the epiglottis, which projects into the wound, with toothed forceps and draw it forward, when the interior of the larynx and the lowest part of the pharynx will be exposed to view. (5) Having accomplished the object of the operation, suture the mucous membrane throughout — suture the ends of the external wound — and pack with gauze the central portion of the wound down to the sutured mucous membrane. EXPOSURE OF THE RETROPHARYNGEAL SPACE BV LATERAL CERVICAL INCISION ALONG POSTERIOR BORDER OK STERNO- MASTOID MUSCLE — CHIENE'S OPERATION. Description. — The retropharyngeal, or retro-esophageal, prevertebral areolar tissue is opened up — without incising the pharyngeal or esophageal wall. Indicated in cases of retropharyngeal abscesses due to protracted cause (e. g., chronic abscess, generally from tubercular disease of the cervical vertebra?) where drainage is apt to be prolonged; — also in large, acute retro- pharyngeal abscesses, especially where jaws can no longer be widely opened. Preparation. — Shave neck, if necessary. Position. — Patient supine, or turned slightly to one side, shoulders elevated, neck prominent, resting upon cushion or sand-bag and turned to one side. Surgeon on side of operation. Assistant opposite. Landmarks. — Posterior border of the sternomastoid. Incision. — Along the posterior border of the sternomastoid, beginning at the mastoid process and descending as far downward as necessary, de- pendent upon the thickness of the structures of the neck. (See Fig. 544, B.) Operation. — (1) Incise skin and fascia in the above line — ligate super- ficial vessels encountered — avoid the transverse and the descending superficial cervical nerves. (2) Recognize the posterior border of the sternomastoid (which overlaps the scalenus anticus somewhat) and draw it forward — the intermuscular groove between the sternomastoid and the scalenus anticus, in the deep cervical fascia, is thus made evident. (3) Follow with a blunt dissector, closely along the anterior surface of the scalenus anticus and in the connective-tissue plane between the scalenus behind and the common sheath SURGICAL ANATOMY OF THE ESOPHAGUS. 711 of the great vessels in front, guarding the spinal accessory nerve beneath the sternomastoid as the dissection passes behind its posterior border. (4) Recognize the outer border of the longus colli muscle as soon as reached, and keep behind this, as well as behind the great vessels — and having passed beneath the longus colli the prevertebral areolar tissue of the retropharyngeal space is reached — and the pus thus evacuated through a route behind and comparatively free of important structures. (5) Free drainage is established from the bottom of the wound — only the ends of the original incision being sutured. Comment. — The retropharyngeal space may be also approached by in- cising along the anterior border of the sternomastoid, on the level of the larynx (Buckhardt's operation) — passing in front of the common sheath of the great vessels — retracting these and the sternomastoid backward, and the thyroid, larynx, trachea, and anterior cervical muscles forward — opening the fascia covering the longus colli and passing, anteriorly to it, transversely across to its inner side into the retropharyngeal or retro-esophageal pre- vertebral areolar tissue. IV. THE ESOPHAGUS. SURGICAL ANATOMY OF THE ESOPHAGUS. Situation and Extent. — A muco-areolar muscular canal, from 23 to 26 cm. (about 9 to 10 inches) long — beginning at lower boundary of pharynx, at upper border of cricoid cartilage, opposite fifth cervical vertebra (or between fifth and sixth), passes down through superior and posterior mediastina along front of spine, lying at first behind left part of the aortic arch, then descending along right side of aorta until it curves forward anterior to and somewhat to left of aorta — to descend through esophageal opening in diaphragm into abdomen, ending in cardiac orifice of stomach, opposite tenth dorsal vertebra (or between tenth and eleventh). Curves of the Esophagus. — The antero-posterior curves of the esophagus follow those of the vertebral column. Laterally, it curves to the left at the root of neck, and at esophageal opening of diaphragm — and is in the middle line at fifth cervical and fifth dorsal vertebra\ Relations. — (a) In the neck : anteriorly, trachea, posterior part of left lateral lobe of thyroid, left recurrent laryngeal nerve. Posteriorly, spinal column, left longus colli muscle, prevertebral fascia. Right, right common carotid, right recurrent laryngeal nerve. Left, left carotid, left inferior thyroid artery and vein, left subclavian artery, thoracic duct. (The relation- ships are more marked on the left.) (b) In the thorax : anteriorly, lower part of trachea, beginning of left bronchus, transverse arch of aorta, left common carotid, left subclavian, posterior surface of pericardium. Posteriorly, spinal column, longi colli muscles, thoracic duct, right inter- costal arteries and veins, left inferior azygos vein, inferior part of thoracic aorta. Laterally, pleurae, pneumogastrics (forming plexus gulae below root of lungs, thence left pneumogastric passes to anterior surface and right pneu- mogastric to posterior surface of esophagus). Vena azygos major lies on the right, and descending aorta on left. Arteries. — From inferior thyroid branch of thyroid axis; descending thoracic aorta; gastric branch of cceliac axis; left inferior phrenic. Veins. — Empty into inferior thyroid, azygos, and gastric veins. Lymphatics. — Empty into inferior cervical and posterior mediastinal trlands. 712 OPERATIONS UPON THE NECK. Nerves.- From recurrent laryngeals, pneumogastrics, and sympathetic. (The recurrent laryngeal branches of the pneumogastric run upward on both sides to the interval between trachea and esophagus — the left nerve lying somewhat anterior to the esophagus — the right nerve at some distance from it.) GENERAL SURGICAL CONSIDERATIONS. The narrowest parts of the esophagus are — at its beginning (narrowest) ■ — opposite the fourth dorsal vertebra — at the diaphragm. Distances (in the average adult) — from upper incisor teeth to diaphrag- matic opening, about 37 cm. (about 14^ inches) — from same point to aorta, about 23 cm. (about 9 inches) — from same point to upper end of esophagus, about 14 cm. (about 5^ inches). The deviation from the median line toward the left, in the cervical portion of the esophagus, amounts to about 1 cm. (about h inch). INSTRUMENTS USED IN OPERATIONS UPON THE ESOPHAGUS. Scalpels; scissors, blunt, sharp, straight, curved; forceps, dissecting, toothed, artery-clamp; retractors; probe; grooved director; tenacula; ligature- retractors; needles, straight and curved; needle-holder; ligatures and sutures, silk and gut; mouth-gag; tongue-forceps; esophageal forceps, various; com- bined mouth-gag and tongue depressor; esophageal bougies; blunt bistoury; drainage tubing and material; blunt dissector; wound-hooks; elevators; bristle probang; special foreign-body forceps and devices; stomach-tube; dilating bougies; esophagotomes; bougie with string attachment; tubage set. EXTERNAL CERVICAL ESOPHAGOTOMY. Description. — Incision of the esophagus in the neck — the opening ordinarilv being made on the left side, opposite the natural curve of the esophagus, except when the object is more prominent and more easily reached on the right. Generally indicated for the removal of foreign body, and sometimes for tumor and for dilatation of the esophagus. Preparation. — The neck is shaved if necessary. Where the operation is for foreign body, the position of the body is sought by instruments before incision, and the position of the incision regulated, as far as possible, by its situation. Position. — Patient supine, shoulders elevated, neck prominent, upon cushion or sand-bag, head thrown back and turned to opposite side (generally to the right). Surgeon on side of operation — Assistant opposite. Landmarks. — Thyroid and cricoid cartilages; trachea; anterior border of sternomastoid muscle Incision. — Straight incision, generally made on the left side, 8 to 10 cm. (about 3 to 4 inches) in length, beginning opposite the upper border of the thyroid cartilage and continuing downward along the anterior border of the sternomastoid, toward the clavicle, as far as necessary. (See Fig. 544, C.) Operation. — (1) Incise skin, superficial fascia, and platysma. Ligate, between double ligatures, the communicating veins between the anterior and external jugular veins, and between the anterior jugular and facial, and possibly also the anterior jugular vein. Some branches of the superficial EXTERNAL CERVICAL ESOPHAGOTOMY. 713 cervical nerve will also be cut. (2) Expose the anterior border of the sterno- mastoid and draw it outward — also the sternohyoid and sternothyroid and draw them inward — divide the omohyoid (unless it can be displaced down- ward). (See Fig. 545.) (3) Divide the thyroid fascia — which is deep cervical fascia forming the capsule of the thyroid gland — which is blended externally with the sheath of the large vessels — and which must be divided before the esophagus can be reached. After dividing this fascia, draw the thyroid gland, larynx, and trachea inward and forward — and the common sheath of the large vessels and pneumogastric, together with the descendens noni nerve, outward. (4) Ligate and divide between two ligatures the inferior thyroid artery as it crosses the longus colli transversely, lying behind the common carotid — also the middle and superior thyroid veins if necessary. Carefully avoid the recurrent laryngeal nerve, ascending in the groove between Fig. 545.— Cervical Esophagotomy : — A, Sternomastoid muscle; P., Sternohyoid muscle; C, Sternothyroid muscle; D, Omohyoid muscle; E, Trachea; F, Esophagus, showing incision, with lips of esophageal wall retracted; G, Recurrent laryngeal nerve; H, Common carotid; I, Inferior thyroid artery, ligated ; J. Communicating vein between anterior and external jugular; k", Thyroid gland, showing superior and inferior thyroid arteries, and superior, middle, and inferior thyroid veins. the trachea and esophagus, drawing it downward and inward if necessary. (5) The esophagus, in the form of a red tube, will now appear in the bottom of the wound. Pass a sound or esophageal bougie into the esophagus through the mouth, so as to protrude the esophageal wall prominently into the wound. A vertical incision is now made through the lateral or postero-lateral aspect of the wall of the esophagus, while steadied with toothed forceps, carefully avoiding the recurrent laryngeal nerve. (6) The lips of the wound in the tube are grasped in turn with toothed forceps and a thread-retractor carried through each lip upon a fully curved needle — thus enabling the wound to be held widely open and the interior brought to view for the purpose of in- spection, removal of foreign body, or operation. (7) At the conclusion of the operation, unless contraindicated by nature of operation (generally after the simple removal of foreign bodies), the lips of the esophageal wound should 714 OPERATIONS UPON THE NECK. be sutured with gut. The outside wound is sutured at its ends, leaving the portion opposite the wound in the tube open and lightly packed with gauze, until the tube has healed and no longer danger of leakage exists from the esophagus. Where indicated, the wounds in the esophagus and in the neck are both left open until the esophageal wall has healed, when the outer wound is aided to granulate as rapidly as possible, or granulating surfaces may be brought together by suture and the process of union hastened. (8) The patient is temporarily fed by bowel at first — then by stomach-tube carefully introduced. Comment. — The wound in the esophageal wall is best closed by two rows of fine catgut sutures — one whipping together the edges of the mucous coat — the other passed a short distance from the margins of the wound, after the manner of a Lembert suture, approximating the connective-tissue coats. CERVICAL ESOPHAGOSTOMY. Description. — The making of an artificial opening in the esophagus through the neck. Generally resorted to below the site of an inoperable stricture, or during the treatment of an operable one, for the purpose, in the former case, of introducing food into the stomach, and, in the latter, of prac- tising mechanical dilatation. Preparation — Position — Landmarks — Incision. — As for Esophago- tomy. Operation. — All the steps in the operation are the same as for Cervical Esophagotomy, up to the opening of the esophagus. This having been accomplished, the edges of the esophageal wound (the walls of the esophagus) are sutured to or as near to the skin of the external wound as possible — the external incision being then closed up to the margin of the funnel-shaped wound leading into the esophagus. After healing, the patient is fed by an esophageal tube introduced through the cervical wound — or his stricture is svstematically dilated through the same channel. (See Figs. 544 and 545.) Comment. — YYheie it is found that a single seance of dilatation, in the case of esophageal stricture, accomplishes the object, the esophageal wound is closed at once — and the operation-wound becomes in name, and in all other respects, an Esophagotomy. PARTIAL CERVICAL ESOPHAGECTOMY. Description. — The excision of a portion of the cervical esophagus through- out its entire circumference — with the restoration of the severed ends by suturing, if possible — or as a preliminary to a Cervical Esophagostomy. Generally done for malignant growth of the esophagus. Preparation Position — Landmarks — Incision. — As for Cervical Esophagotomy. Operation. — (1) Having exposed the esophagus as in the above opera- tions, this tube is isolated, being separated by blunt dissection upward and downward — from the trachea in front — from the prevertebral areolar tissue behind— from the connective tissue, lateral lobes of the thyroid, recurrent laryngeal nerves, and the great vessels laterally. (2) The involved portion of the esophagus is then excised by transverse division with scissors above and below. (3) If the gap be not too great, and it be otherwise possible, the proximal and distal ends are now sutured by two tiers of chromic gut — OTHER OPERATIONS UPON THE ESOPHAGUS. 715 the first whipping the edges of all the coats of the esophagus together — the second being interrupted Lembert sutures passing through the outer walls of the esophagus a short distance from the lips of the wound in the tube — the suturing being done over an esophageal bougie passed through the mouth and distending the esophagus opposite the site of suturing. (4) If the ends of the esophagus cannot be made to meet, the proximal end is closed, first by whipping, then by suturing the outer coats in the Lembert fashion — and the distal end is sutured into the wound in the neck permanently, as for esopha- gectomy, the entire circumference of the distal portion being sutured into the cervical wound (differing in this respect from the Cervical Esophagostomy above described, where only the lips of the lateral wound in the esophagus care stitched into the cervical wound). (5) The external wound is left open in either case — temporarily in the first instance — permanently in the second. Figs. 544, C and 545 illustrate some common features.) INTRODUCTION OF ESOPHAGEAL BOUGIE. Description. — (1) Seat the patient upright, preferably in a chair — head thrown back and slightly to side away from surgeon, and steadied in this position by the individual or by an assistant. Gag the mouth, the handle of the gag being upon the patient's left. Place a small, thin napkin upon the tongue, extending well back. Insert the left index-finger to the base of the tongue, both depressing it and simultaneously drawing it forward, the napkin giving a firmer hold. (2) Upon this left finger as a guide, introduce the lubricated bougie, held between the right index and thumb, straight into the mouth, until its tip reaches the posterior pharyngeal wall — then direct it downward and backward along the esophagus — causing the patient to swallow it as he gags — being guided as to the depth of introduction by the circum- stances of the case and the known distances of the structures from the upper incisor teeth. (See General Surgical Considerations.) OTHER OPERATIONS UPON THE ESOPHAGUS. Esophagoscopy. — The introduction into the esophagus of a special instrument, elec- trically illuminated, and with or without mirrors (an esophagoscope) — wherebv the lumen of the canal may be examined as it is withdrawn from the stomach to the mouth (after the manner of an urethroscope). Internal Esophagotomy. — The division of the strictured esophagus upon the principle of the stnetured urethra — by means of a cutting instrument passed through the narrowed portion upon a guide — or by some special form of esophagotome. Operation for Foreign Bodies in the Esophagus. — Foreign bodies high up in the esophagus can often be seen or felt, and removed with special pharyngeal forceps. Those lower down, out of sight and reach, may still often be removed by special instruments for that purpose, introduced through the mouth. Impacted bodies not removable by instru- ments alone, are removed by instruments introduced, in the majority of cases, through an esophageal wound — generally a cervical esophagotomy. Foreign bodies very low down may be reached by forceps or the fingers through the cardiac orifice of the stomach, introduced through a gastrotomy wound. 716 OPERATIONS UPON THE NECK. Direct Dilatation of the Esophagus for Stricture. — The dilating bougies or instruments of increasing sizes, are passed directly from the mouth through the narrowed esophagus, in the same manner as de- scribed under the Introduction of the Esophageal Bougie, the stricture being gradually distended. Direct Divulsion of Esophageal Stricture. — The passage, from the mouth, in quick succession, of increasing sizes of dilators — thus rupturing, in a minor degree, the surrounding contracted tissues. Retrograde Dilatation of the Esophagus for Stricture.— Here the dilating instrument is passed from below — through a gastrotomy wound, in cases where but one sitting of the retrograde method is necessary, followed by the immediate closure of the stomach wound, — or through a gas- trostomy wound, where frequent resorts to the method are necessary. Dila- tation may be begun by passage of the instrument from the stomach through the strictured esophagus (as the title indicates) — but is often commenced by causing the patient to swallow, prior to anesthesia, a thread with a split shot attached — this is found in the stomach, and upon it the dilating rubber tubes, or other instruments, are drawn from the mouth, through the esophagus, out of the stomach wound — or vice versa. Retrograde Divulsion of Esophageal Stricture. — The same as Direct Divulsion — except performed in the reverse direction, through a gastrotomy or gastrostomy wound. Division of Esophageal Stricture by String Friction (Abbe's Opera- tion). — A preliminary gastrostomy is done — after recovery from which a small bougie, with attached silk thread, is passed from the mouth into the stom- ach — the ends of the thread are grasped by fingers at the mouth and stomach — the small bougie is then withdrawn — another large enough to gently engage the stricture is introduced — the thread is then drawn back and forth, and the frictioning process, as it passes between the engaged bougie and the esophageal wall, soon causes the engaged bougie to become loose — and it is then similarly replaced by a larger size, until the desired caliber is reached. Sometimes the thread is passed through a cervical esophagostomy wound, instead of through the mouth, and then out of the stomach. When sufficient dilatation has been secured, the gastrostomy wound is closed (and also the esophagostomy wound, if one have been made). Division of Esophageal Stricture by String Friction (Bryant's Operation). — A special form of bougie, carrying a thread passed through an opening near its tip and running over a concealed pulley, is passed through the mouth and down the esophagus, until well engaged in the stricture — when by the sawing motion of the thread the stricture is worn down as in the above operation. By this method, gastrostomy may often be dispensed with. Treatment of Esophageal Stricture by Permanent Tubage. — Consists in the passage through the stricture of a funnel-shaped rubber tube, by means of a guide, until the funnel portion of the tube rests above the stricture — a piece of silk attached to a hole in the tube being also tied to the ear of the patient. The tube remains in situ for ten days at a time, and is then cleansed and replaced — fluid food being taken through it. Applic- able to some otherwise inoperable cases of malignant disease. TONSILLOTOMY. 717 V. THE TONSILS. SURGICAL ANATOMY OF THE TONSILS. Situation. — In the recesses between the anterior pillars of the fauces (the palatoglossi muscles) and the posterior pillars of the fauces (the palato- pharvngei muscles) — corresponding, externally, to the angle of the inferior maxilla. Relations. — Externally, inner surface of superior constrictor — which, together with the pharyngeal aponeurosis, separates the tonsil from the internal carotid and ascending pharyngeal arteries. Internally, free. Anteriorly, palatoglossi muscles. Posteriorly, palatopharyngei muscles. Arteries. — Dorsalis linguae of lingual; ascending palatine of facial; ascending pharyngeal from external carotid; tonsillar of facial; descending palatine of internal maxillary; branch from small meningeal of internal maxillary (or from middle meningeal). Veins. — End in the tonsillar plexus, outside of the tonsil. Nerves. — From Meckel's ganglion, and from the glossopharyngeal. GENERAL SURGICAL CONSIDERATIONS. The internal carotid artery lies about 2 cm. (about f inch) to the postero- external aspect of the tonsil — and nearer when tortuous — separated from it by the superior constrictor, styloglossus, and stylopharyngeus. The facial artery, when tortuous, may approach the anterior border of the tonsil. The ascending pharyngeal artery and the glossopharyngeal nerve lie to its outer side. INSTRUMENTS USED IN OPERATIONS UPON THE TONSILS. (1) For Operations through the Mouth: — bistouries, straight and curved, sharp-pointed; Whitehead's combined tongue-depressor and mouth-gag; head-mirror; tonsillotomes; scissors, long-handled, sharp and blunt, straight and curved; forceps, long-handled; artery-clamp forceps, long-handled; tenacula, long-handled; aneurism-needles, long-handled, straight and laterally curved; sponge-holders; needle-holder, long-handled; curved needles; liga- tures; sutures. (2) For Operations through the Neck: — Same as those used for approaching the esophagus, omitting those for use within the esophagus. TONSILLOTOMY. Description. — Incision of the tonsil by means of a knife introduced through the mouth. Indicated in abscess. Preparation. — Mouth is washed frequently with antiseptic solutions. Position. — Patient sits upright in a chair, in a good light — mouth gagged on the opposite side — head thrown back and steadied. Surgeon sits in front — assistant stands behind patient's head, steadying it and gag, and pressing tonsil into the field by fingers in the neck. Operation. — A straight or slightly curved sharp-pointed bistoury, wrapped with plaster or silk to within a little more than 1 cm. (about h inch) of its point, is made to enter the mouth flatwise (its surfaces looking upward and downward), with the back of the blade toward the cheek — it passes backward horizontally and is made to enter the protruding anterior border of the tonsil 718 OPERATIONS UPON THE NECK. (which border generally extends out beyond the anterior pillar of the fauces) in this position — passes into the gland parallel with its free inner surface — and cuts its way from within outward on to its free aspect, in the act of with- drawal. PARTIAL TONSILLECTOMY THROUGH THE MOUTH. Description. — Excision of the free portion of the tonsil (generally hyper- trophied) — by means of a special instrument (tonsillotome) — or by means of scissors or knife, aided by forceps. Preparation — Position. — As for Tonsillotomy. Operation. — (a) With the Tonsillotome; Having applied a combined mouth-gag and tongue-depressor, introduce the tonsillotome flatwise, with blade drawn back, until the pharynx is reached — then rotate it through a quarter circle, holding its handle parallel with the median line — engage the tonsil in the ring of the instrument, encircling it everywhere to an equal depth, drawing the tonsil out with a tenaculum if necessary — push the blade home firmly and steadily — and withdraw the instrument with the attached portion of the tonsil, (b) With long, curved, blunt scissors; Having similarly applied a combined mouth-gag and tongue-depressor, and supposing the tonsil to be the left one, this tonsil is grasped with long forceps held in the operator's left hand — the scissors, held in the right hand, are introduced closed — and are then opened and made to seize the portion of the tonsil protruding beyond the pillars of the fauces, between the grasp of the forceps and the pillars, and to sever the tonsil with one stroke — which is withdrawn in the hold of the forceps. In operating on the right side, hold the- instruments in the opposite hands, (c) With long straight, blunt bistoury; The operation is done as with scissors. COMPLETE TONSILLECTOMY THROUGH THE MOUTH. Description. — The entire tonsil is excised through the mouth — preceded, where difficulty i- anticipated, by a preliminary tracheotomy, a temporary ligation of the common carotid, and, if necessary, by a temporary splitting of the cheek. Indicated in those cases where the growth is limited to the tonsil, or but slightly involves the adjacent portion of the base of the tongue or pillars of the fauces, but in which the tissues of the neck are not infiltrated. Preparation. — As for Tonsillotomy. Position. — Patient supine, shoulders and head raised, and head turned so as best to expose and illuminate field — Surgeon n side opposite operation = — Assistant opposite surgeon. Positions for the preliminary operations will be determined by those operations. Landmarks. — Anatomical boundaries (see Surgical Anatomy, page 717). Preliminary Operations.— (a) Preliminary tracheotomy, with plugging of the larynx, or the use of a tampon-cannula — performed several days in advance of the operation, preferably (or may be done at the time of the opera- tion), (b) Preliminary temporary ligation of the common carotid — performed at the time of the operation, (c) Preliminary splitting of the cheek, if con- sidered necessary — from the angle of the mouth backward to the masseter, with twisting or gut-ligaturing of both ends of the facial artery — performed at the time of the main operation. Operation. — (1) Having completed the preliminary tracheotomy and the temporary ligation of the common carotid, expose the region of the tonsil COMPLETE TONSILLECTOMY THROUGH THE NECK. 719 bv means of a gag on the opposite side, and by splitting of the cheek on the same side, and by drawing the tongue well out of the mouth. The tumor is now dealt with as indicated. (2) Where a movable, encapsulated tumor is encountered, the overlying mucous membrane is incised and the tumor shelled out by means of blunt dissection and the fingers. These simple cases hardly call for such extensive preliminary operations. (3) Where the tumor is immovable, and involves to some extent the fauces and the base of the tongue, — the soft palate is divided in the middle line and thence outward, with scissors — the growth is seized with forceps or tenaculum and drawn toward the median line — while its boundaries are attacked with long, blunt, curved scissors, removing the pillars and tonsillar tumor en masse — together with the entire gland and growth, and as much of the fauces and tongue as necessary, all being deliberately dissected out of their bed — controlling hemorrhage by pressure-forceps, or by twisting or traction upon the tem- porary ligature around the common carotid until the vessels can be controlled. (4) No suturing of the parts about the bed of the tonsil is done. If necessary, the region is packed with gauze, and pressure kept up without and within. (5) The wound of the cheek is neatly repaired by interrupted external and internal sutures, the latter being applied first. The wound of the common carotid is closed. The tracheotomy tube is retained in situ for a few days. The mouth is frequently rinsed with antiseptic washes. COMPLETE TONSILLECTOMY THROUGH THE NECK. CHEEVER'S OPERATION. Description. — The lateral pharyngeal wall is exposed by means of a careful dissection through the neck, and removed to the indicated extent, together with the tumor, tonsil, and all lymphatic glands and involved tissues adjacent. The operation is at first a cervical pharyngotomy, and becomes a partial pharyngectomy, in proportion to the amount of pharyngeal wall removed. Indicated in large, adherent diffused tumors of the tonsillar region, with lymphatic involvement of the neck. Preparation. — Mouth frequently cleansed with antiseptic washes. Xeck and side of face shaved, if necessary. Position. — Patient supine, shoulders elevated, head thrown back and to opposite side, over a cushion or sand-bag, rendering neck prominent — Surgeon on side of operation (or on opposite side leaning over) — Assistant opposite surgeon. Landmarks. — Lobule of ear; anterior border of sternomastoid ; hyoid bone; lower border of inferior maxilla and its angle; known anatomical relations of the tonsil. Incision. — (1) Oblique incision begins opposite lobule of ear — passes down anterior border of sternomastoid as far as the level of the hyoid bone, or to below the level of the lower border of the tumor. (2) A second nearly horizontal incision begins from the oblique one. opposite the angle of the jaw, and is continued transversely forward along the lower border of the inferior maxilla. (See Fig. 546, A.) Operation. — (1) These incisions are carried through skin, platysma, and superficial fascia — the external jugular and temporofacial veins are divided between two ligatures — branches of the cervicofacial nerve encoun- tered are guarded as far as possible. (2) The flaps thus marked out are drawn, the one upward and forward, the other downward and forward, and 720 OPERATIONS UPON THE NECK. the dissection carried on deeply in the submaxillary and superior carotid triangles (see Surgical Anatomy of the neck, page 149) — dividing the stylo- hyoid, styloglossus, stylopharyngeus, and probably the digastric — dividing the facial artery and vein between double ligatures — and guarding the hypo- glossal and glossopharyngeal nerves. (3) The parotid gland is displaced upward — the submaxillary gland forward — and the internal carotid artery and internal jugular vein outward — these structures being held out of the way by retraction. (4) The pharyngeal wall is now exposed and opened — and the tonsil removed, together with as much of the pharyngeal wall and adjacent tissues, including cervical glands, as are involved, by scissors or knife. (5) The pharyngeal wall, upon completion of the operation, is sutured as well as possible, and a temporary drain is placed from the pharyngeal wall Fig. 546.— Incisions for Excision of Tonsil and Parotid Gland :— A, Incision for complete ton- sillectomy through the neck (Cheever's operation) ; B, Incision for excision of the parotid gland. through the lower part of the cervical wound, the remainder of the outer wound being sutured. Comment. — The operation may be aided by a finger in the mouth, out- lining the growth and pressing it outward. The cheek may also be split and the tonsil attacked from both sides. Other Methods of Pharyngotomy for Exposure of the Tonsil. — Czerny's Method — a preliminary tracheotomy is performed, a tampon- cannula being used — the inferior maxilla is then divided and its parts tem- porarily turned aside. Mikulicz's Method — a preliminary tracheotomy, with a tampon-cannula, is performed — and a part or all of the ascending ramus of the inferior maxilla is excised. SURGICAL ANATOMY OF THE PAROTID GLAND. 721 VI. THE PAROTID GLAND AND STENSON'S DUCT. SURGICAL ANATOMY. Situation. — The parotid gland lies upon the side of the face just below and in front of the ear, overlapping the angle of the ramus of the inferior maxilla anteriorly, and extending behind it posteriorly. Boundaries. — Superiorly; root of zygoma. Inferiorly; angle of in- ferior maxilla, and line drawn thence to mastoid process. Anteriorly ; overlaps masseter muscle to a variable extent. Posteriorly ; external auditory meatus; mastoid process; sternomastoid; posterior belly of digastric (some- what overlapping it). Relations of Surfaces. — Anterior surface; grooved by posterior border of ascending ramus of inferior maxilla — lying, in front of ramus, over masseter muscle — and passing, behind ramus, between external and internal pterygoid muscles. External surface ; lobulated and covered by parotid fascia, platysma, and skin, with several lymphatic glands resting upon it, as well as facial branches of auricularis magnus nerve. Internal surface ; in relation with styloid process and its muscles, and with internal carotid arterv and internal jugular vein — and passes deeply into neck by three large processes — (1) Pterygoid process, running forward under ramus of inferior maxilla, between external and internal pterygoids — (2) Glenoid process, running inward under temporomaxillary articulation into back of glenoid cavitv — (3) Carotid process, running inward to surround styloid process and pass between carotid vessels. Separated from submaxillary gland by stylomaxillary ligament. Arteries. — From the external carotid and from its branches. Veins. — Empty into the external jugular. Lymphatics. — Empty into the superficial and deep cervical glands. Nerves. — From carotid plexus; facial; auriculotemporal; auricularis magnus. Structures Passing through the Parotid Gland. — Arteries; external carotid passes deeplv into gland from below and posteriorly, and gives off within the gland — transverse facial, emerging from front of gland — temporal, emerging from above — posterior auricular, emerging from behind — and internal maxillary, passing inward between neck of jaw and internal lateral ligament. Veins; temporomaxillary; connecting vein from temporomaxillary to internal jugular. Nerves; facial, entering gland at its posterior border, crossing external carotid in its passage forward, and dividing in the gland into — temporofacial division, emerging upward and forward from anterior border of gland — and cervicofacial division, emerging downward and forward from anterior border of gland; branches of auricularis magnus, entering from below to join facial; auriculotemporal branch of inferior maxillary, emerging from upper part of gland. Structures in Proximity to Bed of Parotid Gland. — Internal carotid arterv; internal jugular vein; spinal accessory, glossopharyngeal, and pneu- mogastric nerves. Stenson's Duct. — Formed by branches converging from anterior part of gland — runs transversely forward, crossing masseter muscle, piercing buccinator muscle, and passing obliquely forward between this muscle and the mucous membrane of the mouth, to open upon the inner aspect of cheek opposite the crown of the second upper molar tooth. Its general course is about a finger's-breadth below the zygoma. The transverse facial artery passes above it, and branches of the facial nerve below it. 46 722 OPERATIONS UPON THE NECK. Socia Parotidis. — Sometimes exists as a separate gland, lying upon the masseter between the zygoma and Stenson's duct. INSTRUMENTS USED IN OPERATIONS UPON THE PAROTID GLANDS. See those mentioned under the Esophagus (page 712) and Tonsils (page 717) — especially those used in exposing these structures. EXCISION OF THE PAROTID GLAND. Description. — The total removal of even the normal parotid gland is very difficult — and when involved by a large, adherent tumor, it is practically impossible to remove the entire gland. When the tumor is small and the combined mass of tumor and gland is movable, the excision is somewhat less difficult. Preparation. — Neck and side of face are shaved, if necessary. Position. — Patient supine, shoulders elevated, neck prominent, head turned to opposite side. Surgeon on side of operation. Assistant opposite surgeon. Landmarks. — Anatomical boundaries of the parotid, and the contour of the tumor. Incision. — Vertical incision beginning midway between mastoid process and condyle of jaw — extending downward parallel with the ascending ramus of the jaw to just below its angle — rounding thence forward just beneath the lower border of the inferior maxilla to the anterior border of the masseter muscle. Additional room may be gotten by adding a posterior incision to the vertical one opposite the forward curve just described. Also the vertical incision may be continued on downward along the anterior border of the sternomastoid below the point at which the anterior or posterior addition to the vertical incision comes off, as determined by the size and nature of the tumor. (See Fig. 546, B.) Operation. — (1) The flap of integuments marked out by the vertical incision with the forward curve beneath the inferior maxilla, should be raised and turned upward upon the face and stitched to the cheek — and the posterior margin of the wound drawn well backward. Doubly iigate the superficial veins as encountered, and divide them between the ligatures. (See Fig. 547.) (2) The chief hemorrhage may be controlled in one of three ways, dependent upon the nature and extent of the operation and the judgment of the operator — (a) By the ligation of the vessels as encountered in the steps of the operation — (b) By the early exposure and double ligation of the external carotid with its division between the ligatures — (c) By the early exposure and temporary ligation of the common carotid. The first method may be resorted to in the simplest cases — the third in the most difficult. (3) The gland and tumor are approached from the inferior and posterior aspect — dissected from their bed and drawn upward and forward and held under traction of vulsella. During this step the external carotid will be brought into view and should be doubly ligated and divided between the ligatures (unless done as a pre- liminary operation — and should be done even if the common carotid have had a temporary ligature thrown around it, as the branches of the external carotid help to hold the gland in its bed). And all arterial and venous branches subsequently encountered entering or leaving the gland, as it is raised from its bed, are to be similarly divided between double ligatures. (4) The treat- EXCISION OF THE PAROTID GLAND. 7 2 3 ment of the facial nerve is difficult. If the nerve be involved in large, ad- herent tumor-growth, its sacrifice is almost certain — and, under these circum- stances, it is often deliberately divided. If the tumor be more friable, and danger of leaving infecting material not thereby materially increased, one should endeavor, by means of a blunt dissector and the fingers, to break away overlying and encompassing gland and free the main divisions (temporo- facial and cervicofacial) of the nerve and preserve them intact. In any event, where possible and not contraindicated, an attempt should be made to save the branches of the nerve as long as possible — and, where they have been divided, after the removal of the gland, to gut-suture the proximal and distal ends of those severed (neurorrhaphy). (5) The deeper portions of the gland (pterygoid, glenoid, and carotid lobes) are to be now dissected from Fig.547.— Excision of Parotid Gland: — A. Parotid gland; B, Stc-nson's duct; C, Masseter muscle; D, Stylohyoid muscle; E, Sternomastoid muscle; F, External carotid artery; G, Jugular vein ; H, Hypoglossal nerve ; I, Posterior auricular artery and vein ; J, Temporal artery and vein and auriculotemporal nerve; K. Transverse facial artery and vein. Temporofacial branches of facial nerve are seen emerging upward and forward from the gland — and cervicofacial branches downward and forward. The pterygoid, glenoid, and carotid processes of the gland are hidden from view. L The flap stitched back to the cheek. their beds chiefly by means of a blunt dissector and curved scissors, with extreme care — remembering that these processes of the gland rest upon the internal carotid artery and internal jugular vein — and that the pneumo- gastric, glossopharyngeal, spinal accessory, and hypoglossal nerves lie in comparatively close proximity. Injury to the internal jugular vein is the chief danger here. Slight additional room is gained at this difficult stage, in the deep wound between the jaw and the mastoid process, by pushing the jaw well forward and to the opposite side. Where difficulties appear in- surmountable, the deeper lobes, or parts of them, must be cut off and left behind. (6) The tumor is now drawn upward and the facial portion dissected out. (7) Stenson's duct is ligated with chromic gut and severed a short 724 OPERATIONS UPON THE NECK. distance from the gland — its distal end being touched with the actual cautery, or carbolic acid, and left in situ. (8) All hemorrhage having been controlled, a dependent drainage is temporarily introduced and the remainder of the wound sutured and a firm compress applied. Comment. — The vessels from which hemorrhage is to be expected are the superficial temporal, transverse facial, occipital, posterior auricular, internal maxillary, and external carotid arteries; the external jugular and temporomaxillary veins, and branches between the external and internal jugular veins; and numerous unnamed and enlarged anastomoses. The ramus of the lower jaw may be turned aside in an osteoplastic flap to give more room. Where the tumor of the parotid is encapsulated, the tumor alone may be removed and the gland left intact, except for the incision into the gland for the enucleation of the growth. VII. THE SUBMAXILLARY GLAND AND WHARTON'S DUCT. SURGICAL ANATOMY. Situation. — The submaxillary gland lies below the base and internal surface of the inferior maxilla and above the digastric muscle — occupying the anterior part of the submaxillary triangle. Relations. — Covered by; skin; platysma; superficial cervical fascia, facial vein, inframaxillary branches of facial nerve; deep cervical fascia; submaxillary fossa of body of inferior maxilla; lymphatic glands. Rests upon; mylohyoid in front; hyoglossus behind; styloglossus above; and also upon facial artery, mylohyoid branch of inferior dental artery, and mylohyoid branch of inferior dental nerve. Anteriorly ; anterior belly of digastric. Posteriorly ; stylomaxillary ligament, which separates it from parotid gland. Other Relations. — (a) Bulk of submaxillary gland is separated from sublingual gland by mylohyoid muscle, (b) Facial artery grooves posterior and superior aspects of the gland, (c) Lingual branch of fifth and hypo- glossal nerves lie between the gland and hyoglossus muscle. The glosso- pharyngeal nerve lies beneath the hyoglossus muscle, (d) Deep portion of submaxillary gland passes around posterior free border of mylohyoid muscle on to the hyoglossus muscle. Arteries. — Submaxillary and submental branches of facial, and branches of lingual. Veins. — Branches corresponding with arteries. Nerves. — From submaxillary ganglion; mylohyoid branch of inferior dental; sympathetic. Wharton's Duct. — Runs inward between mylohyoid and hyoglossus — then between mylohyoid and geniohyoglossus — and finally under mucous membrane of mouth, between geniohyoglossus and sublingual gland — to empty at side of fraenum linguae. It runs between the lingual of fifth and hypoglossal nerves on hyoglossus muscle — passing under lingual nerve at anterior border of hyoglossus, and then lying above it. INSTRUMENTS. See those used in exposing Esophagus and Tonsils. EXCISION OF SUBMAXILLARY GLAND. 7^5 Fig. 548. — Incisions for Operations upon Larynx, Submaxillary Gland, and Thyroid Gland: — A, Curved submaxillary incision for excision of submaxillary gland; B, T-shaped incision for total laryngectomy; F, E, Kocher's curved transverse incision for total thyroidectomy; D, H, G, Kocher's triangular incision for partial thyroidectomy; F, E, H, G, Author's combined transverse curved and median vertical incision for total thvroidectomv. EXCISION OF SUBMAXILLARY GLAND. Description. — The submaxillary gland is frequently removed for tumor Preparation — Position. — As for the Parotid Gland (page 722). Landmarks. — Anatomical boundaries of the gland, and the contour of the tumor. Incision. — Curved incision, with downward convexity, extending from just below median line of inferior maxilla to just below angle of inferior maxilla — reaching below to hyoid bone. (See Fig. 548, A.) Operation. — (1) Incise skin, platysma, superficial fascia along above line — dividing, between double ligatures, the superficial veins encountered (tributaries of facial, anterior jugular, external jugular). The inframaxillary branches of the facial nerve are encountered crossing the line of incision and are safeguarded as far as possible by retraction. (2) The flap of super- ficial structures thus formed is dissected back — retracted upward toward the face — and either held out of the way, or stitched to the cheek. (3) The special compartment of deep cervical fascia enclosing the submaxillary gland is now incised transversely at its lower part and the gland exposed. The connective tissue attachments of the gland to the hyoid bone and digastric tendon are divided. (4) The gland is now raised from the mylohyoid and hyoglossus and retracted upward over the lower border of the jaw. (5) The facial artery is tied and cut between two ligatures as soon as it presents in the field. The hypoglossal nerve is guarded as it lies between the sub- maxillary gland and the lower part of the hyoglossus; and the lingual of the fifth as it lies between the gland and the upper part of the hyoglossus and styloglossus; (the glossopharyngeal lying beneath the hyoglossus and out of the way)- (6) The gland is now drawn downward and outward and separated from the submaxillary fossa of the inferior maxilla by blunt dissection — and 726 OPERATIONS UPON THE NECK. its deep portion drawn and dissected out from behind the mylohyoid muscle. (7) Wharton's duct is ligated a short distance from the gland and divided — and its distal end touched with the actual cautery or carbolic acid. (8) Temporary drainage may be used at the dependent angle of the wound — which is elsewhere closed — and a firm compress applied. VIII. THE SUBLINGUAL GLAND AND DUCT OF BAR- THOLIN. SURGICAL ANATOMY. Situation. — The sublingual gland lies beneath mucous membrane of forepart of mouth, near to fraenum linguae, in contact with sublingual fossa of inferior maxilla, and rests upon mylohyoid and geniohyoglossus muscles. Relations. — Superiorly; mucous membrane of mouth. Inferiorly; mylohyoid muscle. Anteriorly; sublingual fossa of inferior maxilla; its opposite fellow. Posteriorly; deep part of submaxillary gland (mylohyoid separating it from bulk of submaxillary gland) . Internally ; geniohyoglossus, from which lingual nerve and Wharton's duct separate it. Arteries. — Sublingual and submental. Veins. — Correspond with arteries. Nerves. — From gustatory and sympathetic. Duct of Bartholin. — The main duct of the gland — running along with, and opening in common with, Wharton's duct. Ducts of Rivinus. — Eight to twenty secondary ducts — opening on floor of mouth. INSTRUMENTS. See those used in exposing the Esophagus (page 712) and Tonsils (page 7i7)- EXCISION OF SUBLINGUAL GLAND THROUGH FLOOR OF MOUTH. Description. — The sublingual gland may require removal for tumor, or for embedded calculus. Preparation. — Frequent antiseptic rinsings of mouth. Position. — Patient supine, shoulders and head elevated, mouth gagged open and tongue held to opposite side — Surgeon on side of operation— Assistant opposite. Landmarks. — Anatomical relations of gland, and outline of tumor. Incision. — A straight incision made in floor of mouth, beginning at the median line, a short distance back of the alveolar margin, and carried obliquely backward and outward, parallel with the alveolar margin, for about 4 cm. (about ij inches). Operation. — (1) Having incised mucous membrane of mouth and re- tracted margins of wound, the upper aspect of the gland is exposed imme- diately beneath it. (2) Having well exposed the upper portion of the gland by retraction of the margins of the wound, the gland is seized with toothed forceps and drawn upward, while being separated by means of a blunt dis- sector — from the mylohyoid muscle below — from the geniohyoglossus muscle, lingual nerve, and Wharton's duct internally — from its opposite fellow in front and on the opposite side — and from the deep part of the submaxillary gland behind. (3) Having raised it from its bed, its ducts are divided. (4) The mucous membrane is sutured over its site — one end being left open for temporary drainage, if thought necessary. PARTIAL THYROIDECTOMY. 727 Comment. — The gland may be partially excised (in cystic enlargements) by picking up its upper wall with toothed forceps and cutting out a large piece of the wall and gland with curved scissors. IX. THE THYROID GLAND. SURGICAL ANATOMY. Situation. — The thyroid gland is situated at the upper part of the trachea — consisting of two lateral lobes, which extend from nearly as high as the oblique line on the ala of thyroid cartilage, down to fifth or sixth tracheal ring — and of an isthmus from 0.5 to 2 cm. (about j to f inch) broad, which generally covers the second and third (and sometimes fourth) tracheal rings. Relations. — Anteriorly; covered by sternohyoid; sternothyroid; omo- hyoid; and slightly overlapped by anterior border of sternomastoid. Later- ally ; sheath of great vessels. Upper part of lateral lobe lies between the sternothyroid and inferior constrictor, the latter separating it from the ala of thyroid cartilage. Posteriorly; embraces trachea and larynx, reaching backward to lower part of pharynx, and, especially on left, to esophagus; recurrent laryngeal nerves; branches of inferior thyroid artery. Middle or Pyramidal Process. — May be developed in connection with the thyroglossal duct — extending upward from the isthmus or left lobe — and connected to the thyrohyoid membrane or body of the hyoid bone. Suspensory Ligaments of the Thyreoid Gland. — Two ligaments pass from inner and posterior aspect of lobes upward to sides of cricoid cartilage. Recurrent laryngeal nerves lie in contact with their outer surface. Arteries. — Two superior thyroid arteries from external carotid to superior, internal and anterior parts of lateral lobes; two inferior thyroids from thyroid axis to external and posterior parts of lateral lobes; and sometimes thyroidea ima from innominate or aorta. Veins. — Two superior and two middle thyroid emptying into internal jugular; two inferior thyroid, emptying into innominate. These veins form a plexus upon the surface of the gland and trachea. Lymphatics. — Empty into thoracic duct and right lymphatic duct. Nerves. — From inferior and middle cervical ganglion. Other Relations. — Recurrent laryngeal nerves ascend obliquely to side of trachea, running eitner behind or in front of inferior thyroid arteries — requiring, therefore, special care to avoid them. Middle cervical ganglion — lies opposite sixth cervical vertebra — generally lying upon or near the inferior thyroid artery. It is necessary to distinguish the deep cervical fascia surrounding the thyroid gland from the capsule of the gland itself. INSTRUMENTS. See those used in exposing the Esophagus (page 712) and Tonsils (page 717). PARTIAL THYROIDECTOMY BY ANGULAR INCISION — KOCHER'S OPERATIOX. Description. — Consists in the removal of one lobe of the thyroid gland. The features of the removal of a larsje goitrous thyroid can be but very 728 OPERATIONS UPON THE NECK. imperfectly illustrated upon a normal thyroid gland — but the steps of the operation for the former condition will be given. Preparation. — Neck shaved. Position. — Patient supine, shoulders elevated, neck prominent, head at first slightly to opposite side and then held in median line. Surgeon in front of neck, on side of lobe to be removed (or on opposite side leaning over). Assistant opposite surgeon. Landmarks. — Outline of sternomastoid muscle; upper border of thyroid cartilage; anatomical position of thyroid gland; contour of tumor. Incision. — Begins over the prominence of the sternomastoid muscle, on a level with the thyroid cartilage — runs forward nearly transversely, to median line, inclining slightly downward in the crease of the neck — thence passes vertically downward to the suprasternal notch, or, in large tumors, on to the manubrium. (See Fig. 548. D, H, C.) Operation. — (1) The above incision passes through skin, superficial fascia, and platysma. (2) In the Horizontal Portion of the Wound; — the anterior jugular and connecting branch between it and the external jugular are divided between double ligatures. (The external jugular lies behind the posterior end of this incision.) Branches of the superficial cervical and inframaxillary nerves are encountered and are guarded as well as possible by retraction. Externally, the anterior edge of the sternomastoid is exposed, freed, and drawn backward. Internally, the sternohyoid and sternothyroid are exposed, the overlying fascia being displaced upward. (3) In the Vertical Portion of the Wound; — the cervical fascia between the sternohyoid and sternothyroid is divided. The transverse vein above the suprasternal notch is divided between double ligatures. The inner margins of the two above muscles are freed and partly divided toward their upper ends, with double ligature and division of the vessels encountered. (4) The Outer Capsule of the Goitre now alone intervenes between the Gland ; — divide this and separate it from the lateral aspects of the goitre with blunt dissector — dividing between double ligature the superior and inferior accessory veins which may pass from the capsule to the goitre. Displace the outer capsule of the goitre, with the overlying muscles, by passing a finger beneath the goitre from the outer side. (5) Dislocation of the Goitre is now done; which is accomplished, after inserting a finger beneath the goitre, by lifting it forward out of its bed and turning it toward the opposite side — exercising care that the vessels, especially the inferior thyroids, are not stretched sufficiently to give way. (6) The Chief Vessels are now Ligated between Double Ligatures; — these are brought into the field in proportion to the dislocation of the tumor from its bed. The inferior thyroid artery and vein are first sought by drawing the tumor upward and forward — the artery is isolated with especial care, as the recurrent laryngeal nerve is in very near relation, either anteriorly or poste- riorly to it — and if any doubt exist, it should be left until the last. The supe- rior thyroid artery and vein are sought above the isthmus, being freed with blunt dissector while the tumor is drawn downward and forward. The middle thyroid vein and the branches of unnamed enlarged vessels are similarly tied and divided. (7) Isolation of the Isthmus; — expose if possible, and divide between double ligatures, a superior and inferior communicating vein, and probably some arteries, at the upper and lower borders of the isthmus. By means of a director, or blunt dissector, the isthmus is separated from the trachea — a stout double ligature is passed beneath, tied on either side, and the isthmus divided between them — while the tumor is further lifted out of its bed and away from the trachea by fingers passed beneath the growth. COMPLETE THYROIDECTOMY 729 Be especially careful of the recurrent laryngeal nerve in the separation of the posterior portion of the gland from the trachea — for which reason it is well to cut through the posterior portion of the capsule of the gland in order to protect the recurrent laryngeal nerve. (8) The depth of the wound is tem- porarily drained — the major portion of the wound being sutured — and a firm, compressing dressing applied. Comment. — Many additional unnamed vessels are present in large goitres. Fig. 549. — Total Thyroidectomy by Combined Transverse Curved and Median Vertical Incision: — A, Retracting tissues from trachea; B, Retracting left margin of wound and sternohyoid muscle; C, Retracting right lobe of thyroid gland, which is in the >>.ct of being freed from its bed; D, D, Transversely divided sternohyoid muscles; E, E, E, E, Ligated ends of anterior jugular veins; F, F, Superior thyroid arteries; G, G, Thyroid veins ramifying on surface of thyroid gland. COMPLETE THYROIDECTOMY BY TRAXSYKRSF. CURVED INCISION — KOCHKR'S OPERATION. Description. — Where both lobes of the thyroid gland are involved, both lobes of the gland are removed — except that a small portion of the healthy gland tissue is left, if possible, in order to maintain the special function of the gland and thus prevent the cachexia strumipriva which is apt to supervene when the entire thyreoid gland tissue is removed. The full difficulties of the operation are very imperfectly appreciated in the excision of a normal gland, as compared with those encountered in a large goitrous tumor. 730 OPERATIONS UPON THE NECK. Preparation. — Neck shaved. Position. — As for Partial Thyreoidectomy, except that the position of the head is changed from time to time to meet the indications of the steps of the operation. Landmarks. — Those of the partial operation. Incision. — Transverse curved incision, with slight downward convexity, is made across the prominence of the tumor, so as to subsequently fall along the cleavage line of the neck — extending laterally over the sternomastoids — and extending further upward and backward on the side of greater enlarge- ment. (See Fig. 548, F, E.) Operation. — In all essential features the operation is similar to the one just described, with such modifications as the larger size of the tumor suggests. (I) After having cut through skin, superficial fascia, and platysma, and ligated the superficial vessels, the sternohyoid, sternothyroid, and omohyoid muscles (which are often thinned over the tumor by pressure) are divided transverselv over the tumor, internally, and their ends drawn upward and downward, — and the sternomastoids are partly cut through (entirely if neces- sary) from their anterior border and the uncut portions retracted outward. (2) The tumor is thus completely exposed, covered by its outer capsule — and its further removal is accomplished practically as in the partial thyroidectomy. First one lateral lobe and then the other is attacked — dislocated — and its vessels tied — the isthmus isolated and divided between ligatures — the details of the steps and the termination of the operation being similar to the unilateral operation. Comment. — The least amount of transverse division of muscles done the better, as marked retraction and deformity are apt to follow if the muscles do not reunite. All muscles severed, whether wholly or in part, should be repaired with catgut suture at the end of the operation. The transverse curved incision, where the muscles do not have to be divided, makes a better skin scar — and the angular incision leaves a more marked skin scar but does not divide the muscies. Goitres are also treated by Enucleation-resection — by Enucleation — by Exothyropexv (freeing the gland from the capsule and fixing superficially in the wound to granulate and shrink) — by injection — etc. An excellent exposure is secured by turning down two triangular flaps raised by means of a combined transverse curved and a median vertical incision (Figs. 548, F, E, H, G, and 549). CHAPTER IV. OPERATIONS UPON THE THORAX. I. THE THORACIC WALL AND CONTENTS. SURGICAL ANATOMY. Boundaries of Thorax. — Anteriorly; manubrium, gladiolus, and ensi- form portions of sternum; costal cartilages; muscles of anterior thoracic region; vessels and nerves. Posteriorly; dorsal vertebra 1 ; ribs, from vertebral extremities to angles; muscles of posterior thoracic and spinal regions; vessels and nerves. Laterally; ribs, from costal cartilages to angles; muscles of lateral thoracic regions; clavicles and their muscles; scapulae and their muscles; vessels and nerves. Superiorly, upper opening of thorax. Interiorly, lower opening of thorax, closed by diaphragm. Contents of Thorax. — Heart and pericardium; lungs and pleurae; trachea and bronchi; esophagus; thoracic vessels and nerves; thoracic duct; superior, anterior, middle, and posterior mediastina; thoracic aspect of diaphragm. (For contents of mediastina, see each mediastinum, pages 747, 748, and 752.) Boundaries of Upper Opening of Thorax. — Anteriorly; upper border of manubrium sterni. Posteriorly; body of first dorsal vertebra. Laterally; first rib. Dimensions; averages 12.7 cm. (5 inches) transversely, and 6.3 cm. (2j inches) antero-posteriorly. Structures Passing through Upper Thoracic Opening. — (1) Centrally; sternohyoid and sternothyroid muscles; thin layer of deep cervical fascia; thymus gland (in infants) or its remains; middle thyroid artery (sometimes); trachea; esophagus; prevertebral fascia; longi colli muscles. (2) Laterally; innominate artery (on right side) ; common carotid and left subclavian arteries (on left); internal mammary and superior intercostal (on both sides); in- nominate and inferior thyroid veins; pneumogastric, cardiac, phrenic, sympa- thetic, left recurrent laryngeal, and anterior branches of first dorsal nerves; apices of lungs and their pleurae; thoracic duct (on left); right lymphatic duct (on right). Boundaries of Lower Thoracic Opening. — Anteriorly; ensiform car- tilage; cartilages of seventh, eighth, ninth, tenth, and eleventh ribs. Poste- riorly; body of twelfth dorsal vertebra. Laterally; twelfth ribs. Floor; formed by diaphragm, varying in elevation with respiration. Structures Passing through Floor of Thorax: (Diaphragm). - Through Aortic Opening of Diaphragm; aorta; vena azygos major; thoracic duct; left sympathetic nerve (occasionally). Through Esophageal Opening; esophagus; pneumogastric nerves; esophageal branches of thoracic aorta. Through ('aval Opening; vena cava inferior; branches of phrenic nerve. Through Right Crural Opening; greater and lesser right splanchnic nerves; right svmpathetic nerve. Through Left Crural Opening; greater and lesser left splanchnic nerves; vena azygos minor; left sympathetic nerve (generally). (For attachments, relations, and position of diaphragm, see that structure.) Structures of Thoracic Wall Opposite an Intercostal Space (between costal cartilages and angles of ribs). — Integument; superficial fascia, with 73i 732 OPERATIONS UPON THE THORAX. superficial arteries, veins, lymphatics, and nerves; special thoracic muscles overlying ribs (dependent upon site); dec]) fascia; external intercostal muscles; intermuscular areolar tissue between intercostal muscles, with intercostal arteries, veins, lymphatics, and nerves; internal intercostal muscles; endo- thoracic fascia; subpleural areolar tissue; parietal pleura. (The external intercostal muscles extend from tubercles of ribs, posteriorly, to costal car- tilages, anteriorly, and from the anterior ends of the external intercostals the external intercostal fascia is continued to the sternum. And beneath this fascia, the internal intercostal muscles intervening, lies the triangularis sterni muscle, extending from second or third costal cartilage above, to seventh costal cartilage below, and to outer end of costal cartilages externally. The internal intercostal muscles extend from the sternum, anteriorly, to the angles of the ribs, posteriorly, and from the posterior ends of the internal intercostals the internal intercostal fascia is continued to the vertebral column. And beneath this fascia, the external intercostal muscles intervening, lie the infra- costales muscles, extending from the angles of the ribs toward the vertebral column.) Structure of Thoracic Wall Opposite a Rib (between costal cartilages and angles of ribs). — Integument; superficial fascia, with superficial arteries, veins, lymphatics, and nerves; special thoracic muscles overlying ribs (de- pendent upon site); deep fascia; external layer of costal periosteum; rib; internal layer of costal periosteum; endothoracic fascia; subpleural areolar tissue; parietal pleura. Relations of Overlying Bones to Chest-wall. — Clavicle; its inner end articulates with supero-external aspect of manubrium (forming the lateral boundaries of suprasternal notch) . The inner third of clavicle passes obliquely over the manubrium, costal cartilage, and inner end of first rib, lying 0.6 to 1.2 cm. (| to \ inch) above rib, and passes thence outward to its articulation with acromion, crossing about the center of second rib, from 3.2 to 3.8 cm. (ij to i| inches) above the rib. Scapula; rests upon postero-external aspect of thorax, from second to eighth ribs. When arms are by side, superior angle is on level with upper border of second rib (opposite interval between first and second dorsal spines), inferior angle being on level with seventh intercostal interval, or sometimes upper border of eighth rib (between seventh and eighth dorsal spines), and root of spine on level with interval between third and fourth dorsal spines. Muscles Covering and Forming Thoracic Wall (extracostal, inter- costal, and infracostal muscles). — Anteriorly; pectoralis major; subclavius, internal intercostals; triangularis sterni (and attachments of sternomastoid, sternohyoid, and sternothyroid to manubrium; and attachments of aponeuroses of external oblique, internal oblique, and transversalis abdominis and dia- phragm to ensiform cartilage). Laterally; platysma myoides; pectoralis major; pectoralis minor; latissimus dorsi; serratus magnus; external inter- costals; internal intercostals; diaphragm (and parts or all of some of the more particularly clavicular and scapular muscles — subclavius; deltoid; omo- hyoid; supraspinatus; infraspinatus; subscapularis; teres minor; teres major; trapezius, — and parts of some of the muscles attached to the upper ribs — scalenus anticus and medius, — and parts of some of those attached to the lower ribs — external oblique; internal oblique; transversalis abdominis). Posteriorly; trapezius; latissimus dorsi; quadratus lumborum; serratus magnus; levator anguli scapuli; rhomboideus major and minor; scalenus posticus; serratus posticus superior and inferior; splenius capitis and colli; ilio-costalis; musculus accessorius ad ilio-costalem; cervicalis ascendens; SURFACE FORM AND LANDMARKS. 733 longissimus dorsi; transversalis colli; trachelomastoid ; spinalis dorsi; corn- plexus; biventer cervicis; semispinalis dorsi and colli; multindus spinae; rotatores spinae; supraspinales; interspinales; intertransversales; levatores costarum; internal intercostals; infra costales; diaphragm. Chief Arteries of Thoracic Wall. — Internal Mammary of thyroid axis, giving off following branches — sternal; anterior intercostal (two in each of five or six upper spaces); perforating (five or six branches to the five or six upper spaces) ; musculophrenic (furnishing anterior intercostal branches for five or six lower spaces). Superior Intercostal of thyroid axis, to first intercostal space. Suprascapular of thyroid axis. From Trans- versa lis Colli of thyroid axis — posterior scapular. From Axillary — superior thoracic; acromial thoracic; long thoracic; alar thoracic; subscapular. From Thoracic Aorta — ten or eleven aortic intercostals, giving off anterior and posterior branches — the anterior, or true intercostal arteries, dividing into superior and inferior, supplying each intercostal space from the second to the space below twelfth rib, and anastomosing with anterior intercostals of internal mammary and musculophrenic. From Abdominal Aorta — phrenic arteries. Chief Veins of Thoracic Wall. — Correspond with arteries. Chief Nerves of Thoracic Wall. — From Posterior Divisions of Cervical Nerves — branches from third, fourth, fifth, sixth, seventh, and eighth nerves. From Cervical Plexus — supraclavicular branches; deep muscular branches. From Brachial Plexus — muscular branches; posterior thoracic; suprascapular; anterior thoracic; subscapular. From Dorsal Nerves — anterior branches of upper eleven nerves (the intercostal nerves) ; posterior branches of upper eleven nerves. SURFACE FORM AND LANDMARKS. Suprasternal Notch is formed by upper border of manubrium and inner aspects of non-articular portions of inner ends of clavicles. Superior border of sternum (during inspiration) is on level with carti- laginous disc between second and third dorsal vertebrae. Transverse ridge at junction of manubrium and gladiolus corresponds with costal cartilage of second rib, and is opposite fifth dorsal vertebra. Lower end of gladiolus is opposite ninth dorsal vertebra, and corresponds with termination of seventh costal cartilages. Infrasternal depression lies between seventh costal cartilages, and corre- sponds with ensiform cartilage. Structures behind manubrium sterni — Left innominate vein lies slightly below superior border; Innominate, common carotid, and subclavian arteries come off from aortic arch about 2.5 cm. (one inch) below upper border; Trachea bifurcates opposite manubrio-gladiolar junction; Esophagus. Pectoral furrow (sternal furrow) is the median vertical furrow between pectoral muscles, its bottom corresponding with center of sternum. Subcostal (abdominothoracic) arch is formed by ensiform cartilage and cartilages of seventh, eighth, ninth, and tenth ribs and extremities of eleventh and twelfth ribs. The subcostal angle varies from 60 degrees to 80 degrees, averaging about 70 degrees in male and 75 degrees in female. Apices of lungs, with their pleurae, rise from 1.2 to 4.4 cm. (h to if inches) above clavicle. Right sterno-clavicular articulation is in relation with innominate artery, right innominate vein, and pleura. 734 OPERATIONS UPON THE THORAX. Left sterno-clavicular articulation is in relation with left innominate vein, left carotid and pleura. First rib is almost covered by clavicle and scapula. Infraclavicular fossa is the space, or hollow, between lower border of clavicle and upper border of second rib. Coracoid process lies about i inch below junction of outer and middle thirds of clavicle. Nipple, in male, lies over infero-external part of pectoralis major, gener- ally between fourth and fifth ribs, about -f inch to outer side of junction of ribs and costal cartilages, and a little more than 4 inches from median line. Inferior border of pectoralis major corresponds with fifth rib. Internal mammary artery is 0.5 to 1.5 cm. (\ to f inch) from outer border of sternum, above — and 1 to 2 cm. ( T 7 g- to -ff inch) from it below. Costo-vertebral groove is occupied by the erector spina.' and multifidus spina?, and their subdivisions. Tips of the spinous processes at the upper and lower parts of thorax- correspond, approximately, with the neck of the rib below the particular spine, but the tips of those spines near the center of the series about correspond with the neck of the second rib below. Distance from upper central incisor teeth to bodies of first, second, third, fourth, fifth, and tenth dorsal vertebras is, approximately, 20.3, 21.8, 23.8, 25.7, 28, and 38 cm. (8, 8f, 9!, io|, n, and 15 inches) respectively, in the average person of 5 feet 8 inches, as measured by esophageal route (which data are of use in locating obstructions of the esophagus). INSTRUMENTS USED IN OPERATIONS UPON THE THORAX. Exploratory syringe; cannula and trocar; scalpels; cartilage knives; probe- pointed bistoury; dissecting forceps; toothed forceps; artery-clamp forceps; tracheal and esophageal forceps; scissors, curved and straight; retractors, various; saws, Gigli's, chain, Doyen's; probe; large sound; grooved director; tenacula; periosteal elevators, straight and curved; costotome; bone-cutting forceps; rongeur forceps; bone-holding forceps; bone-drill; wire; aneurism- needles, straight and curved; needles, various; needle-holder; sutures and ligatures of silk, plain and chromic gut, and silkworm-gut; drainage-tubes; gauze. CHONDROPLASTIC RESECTION OF CHEST-WALL BY SUBCOSTAL INCISION AND TEMPORARY DIVISION OF SEVENTH, EIGHTH, NINTH, AND TENTH COSTAL CARTILAGES. Description. — Owing to the rigidity of the chest-wall it is difficult to satis- factorily expose the dome of the diaphragm, the upper surface of the liver, the lower end of the esophagus, and the cardiac end of the stomach. By the tem- porary resection of the costal arch of either the left or right side, as indicated, these structures are much more readily brought into the operative field. While this operation* is generally resorted to in connection with structures within the abdominal cavity, yet as it involves the chest-wall, it is here described among the thoracic operations. Preparation. — As for an intra-abdominal operation. Position. — The reversed Trendelenburg position causes the abdominal CHONDROPLASTIC RESECTION OF CHEST-WALL. 735 viscera to gravitate away from the dome of the diaphragm — and hence render the operation site more accessible. Landmarks. — The costal arch of the side involved and the position of the seventh, eighth, ninth, and tenth ribs. Incision. — In the case, for instance, of operating upon the upper surface of the liver, the incision is a curved one placed just below the right costal arch and extending from the ensiform cartilage to the tenth rib (Fig. 550). Fig. 550. — Chondroplastic Resection of Chest-wall: — Subcostal incision of soft parts seen just below costal arch, from ensiform cartilage to tenth rib. Costal cartilages of seventh, eighth, ninth, and tenth ribs are divided at each end of darkened part — which latter represents the portion of costal arch temporarily turned back. (Thorax modified from Bock.) Operation. — In the upper aspect of this wound the rectus and external oblique muscles are separated from the internal oblique and transversalis — thus exposing the lower margin of the costal arch, represented by the cartilages of the seventh, eighth, ninth, and tenth costal cartilages. The cartilage of the seventh rib is divided near its junction with the sternum. Carrying the blunt dissection downward and outward, the junction of the seventh, eighth, ninth, and tenth ribs with their cartilages are exposed — and the cartilages divided just internal to their junctions with the corresponding ribs (Fig. 550, the darkened area) . The flap thus composed of these cartilages and their overlying soft parts is retracted upward and outward — giving free access to the hypochondrium. At the end of the operation the cartilages are dropped back into place — where their divided ends may be sutured with catgut through holes previously pierced — and the wound sutured. 736 OPERATIONS UPON THE THORAX. OPERATIONS UPON THE THORACIC WALL AND CONTENTS. For operations upon the Thoracic Viscera, Mediastina, Diaphragm, and Mammary Gland, see those structures in the following sections. For opera- tions upon the Bones, Joints, Arteries, and Nerves of the Thorax, see those structures in Part I, General Surgery. II. THE FEMALE MAMMARY GLAND. SURGICAL ANATOMY. Description and Position. — A hemispherical eminence consisting of glandular, fatty, and areolar tissue, lying between the two layers of the super- ficial pectoral fascia, the lower layer resting upon the sheaths of the pectoralis major and serratus magnus muscles, and the upper layer being covered by the skin. The superficial pectoral fascia (continuous above with the super- ficial cervical fascia) divides, opposite the upper border of the mamma, into anterior and posterior layers, passing, respectively, in front and behind the gland, and holding it, as it were, in a sling. From the anterior layer of this superficial pectoral fascia numerous processes pass into the gland and support its parenchyma. The posterior layer of this fascia is separated from the deep thoracic fascia by a loose, easily separable layer of areolar tissue. Arteries of Mammary Gland. — Anterior intercostals of internal mam- mary, of second, third, fourth, and fifth spaces; perforating branches of internal mammary, of second, third, fourth, and fifth spaces; intercostals of thoracic aorta, of second, third, fourth, and fifth spaces; long thoracic of axillary; external mammary, of axillary (if present). Veins of Mammary Gland. — Form circulus venosus around base of gland and empty into branches corresponding with arteries. Lymphatics of Mammary Gland. — Empty into axillary and anterior mediastinal glands. (For position of axillary glands, see Axilla, under Lymphatic Glands and Vessels, page 154.) Nerves of Mammary Gland. — Anterior and lateral cutaneous branches of second, third, fourth, and fifth intercostal nerves; supraclavicular branches of cervical plexus. SURFACE FORM AND LANDMARKS. The female mammary gland extends vertically generally over the third, fourth, fifth, and sixth (and sometimes seventh) ribs, and transversely from the border of the sternum to the anterior axillarv margin. GENERAL SURGICAL CONSIDERATIONS. Three grades of excision for the removal of the female breast may be done; — (1) Radical excision of the entire breast, with the removal of the entire lymphatic and areolar tissue of the axillary region, and of the thoracic wall between the breast and axilla (whether visibly or palpably diseased or not), with or without removal of parts of the pectoral muscles. Indicated in cases of malignant disease of mammary gland. (2) Ordinary or non- radical excision of entire breast, either without opening of axilla, or with limited opening of axilla for the removal of only the palpably enlarged glands. Indicated in non-malignant growth of the mammary gland, and also used by PARTIAL EXCISION OF MAMMARY GLAND. 737 some operators for malignancy of the gland. (3) Partial excision of the breast. Indicated where a benign growth is limited to a comparatively small portion of the breast. For instruments used in operating upon the breast, see those mentioned under "The Thoracic Wall and Contents" (page 734). INCISION OF BREAST. Description. — Division of mammary gland tissue. Most frequently in- dicated in abscesses which may be antemammary (in areolar tissue between skin and gland), intramammary (within the glandular tissue), or postmam- mary (in areolar tissue between gland and pectoral muscle). In the first and third varieties the abscess should be opened by a route not involving the gland. In the second variety (which is here considered) the gland substance itself is incised. Preparation. — Site of incision and irregularities of nipple are scrubbed. Axilla is shielded from operation-site. Position. — Patient supine, at edge of table. Surgeon on side of operation. Landmarks. — Contour of breast, together with situation of abscess. Incision. — All incisions into gland substance should be straight, and made somewhere in a straight line radiating from nipple to circumference of gland, so as to damage lactiferous ducts as little as possible. Incision should not extend too near nipple. Operation. — Incise skin, superficial fascia, and the gland substance intervening between fascia and outer wall of abscess, generally with one cut of knife. Having laid open cavity of abscess, and controlled hemorrhage with clamp-forceps, if necessary, its walls are well curetted, so as to leave clean, raw surfaces. The resulting walls of cavity may then be approximated by deeply buried gut sutures, followed by closure of more superficial wound. Or cavity may be temporarily packed with gauze, after curettage and irriga- tion, and the superficial wound closed up to the exit of gauze drainage. The latter course is better in acute and the former in chronic abscesses. Comment. — It is sometimes possible to excise the entire abscess, without opening its cavity, and close the entire wound at once by deeply buried and superficial cutaneous sutures. PARTIAL EXCISION OF MAMMARY GLAND BV ELLIPTICAL INCISION. Description. — Removal of a limited portion of the breast. Preparation. — Breast and nipple scoured; breast shaved, if necessary; axilla protected from field of operation. Position. — Patient supine, at edge of table. Surgeon on side of operation. Assistant opposite Surgeon. Landmarks. — Contour of breast, together with position of growth; plane of pectoral muscle. Incision. — An ellipse is outlined so as to include the growth by a wide margin, with the two arms of the incision meeting between the inner aspect of the growth and the nipple, and between the outer aspect of the growth and the periphery of the gland, the general direction of the ellipse radiating from nipple to circumference. When indicated, the nipple is also included in the ellipse and removed (Fig. 551, B). 47 738 OPERATIONS UPON THE THORAX. Operation. — Incise skin and superficial fascia, first along one side of ellipse, then along opposite side, controlling bleeding with clamp-forceps. Slightly retracting tissues in a direction away from the ellipse, incise through the glandular tissue along the lines of the original incision, passing downward toward the base <>f the gland, with a tendency for the incisions to approach as they deepen. The part to he removed is thus entirely surrounded and it:; depth finally reached, either before the entire thickness of the mammary gland has been traversed, or at the pectoral muscle, after traversing its entire thick- ness, and is removed en masse. All bleeding vessels are tied with gut. The depths of the wound are approximated by buried gut sutures, and the margins of the wound united with silk or silkworm-gut. Comment. — When the part removed is considerable, it may be necessary to undercut the tissues laterally to enable the walls and surface of the wound to be approximated without too great tension. The principle of the subcu- taneous excision of the mammary gland (7. v.) may also be applied to the excision of a part of the gland (page 746). RADICAL EXCISION OF MAMMARY GLAND, TOGETHER WITH ENTIRE BELLY OF PECTORALIS MAJOR AND PECTORALIS MINOR MUSCLES, AND AXILLARY GLANDULAR AND CON- NECTIVE TISSUES, IN ONE MASS. willy meyer's operation. Description. — The entire breast and the pectoralis major and pectoralis minor muscles are removed, together with the lymphatic glandular and the connective tissues of the axilla. The special feature of the operation is that, after division of the tendons of the two pectoral muscles, the structures of the axilla are first exposed and the necessary vessels ligated — in the act of dissecting out the glandular and areolar tissues — after which the axillary mass and the breast, with the two muscles, are removed en masse in a direction from the axilla toward the sternum — thus minimizing the pressure of infectious material from the site of malignancy toward the axilla and thence into the general system, and also materially lessening hemorrhage by the early clamping and dividing of vessels near their origin. Preparation. — The entire anterior aspect of the thorax, axilla, arm, and lateral and part of posterior aspects of thorax are shaven. The anterior sur- faces of both thighs are also shaven (to provide surfaces from which grafts may be needed). Position. — The patient rests upon two horsehair pillows placed parallel to the spine under the back — thus rendering the sides of the thorax more accessible by elevation. The involved arm is held slightly above a right angle with the longitudinal axis of the body, with the elbow flexed at an angle of 90 degrees. Landmarks. — Humeral attachment of pectoralis major muscle; lower border of pectoralis major; border of latissimus dorsi, sternal and thoracic origins of pectoral muscles; sternum; contour of breast; cephalic vein; clavicle. Incision. — An incision is so planned as to allow two flaps to be raised:- — (1) The lower flap is formed by an incision that begins at the humeral attach- ment of the pectoralis major — the incision passing downward and inward, parallel with and about 2.5 cm. (1 inch) above the lower border of the pectoral muscle, to the base of the breast — thence is continued along the lower margin of the breast, to end over the sternum slightly beyond the median line. (2) The RADICAL EXCISION OF MAMMARY GLAXD. 739 upper flap is formed by an incision which simply follows the upper contour of the breast, joining the upper and lower ends of the preceding incision (Fig. SSi, A). Operation. — (i) Freeing the flaps; — The lower flap is loosened and retracted downward, until the border of the latissimus dorsi and the chest-wall are exposed in the axilla — freeing the fat by incision and blunt dissection in such a way as to leave as much of it as possible adherent to the breast. The border of the latissimus dorsi is freed down to the serratus anticus major and up to the bicipital sulcus of the arm. In freeing and retracting the upper flap as much fat is here, too, left adherent to the breast as possible, guarding against endangering the nutrition of the skin. Care is taken not to include the pectoral fascia. The breast and pectoralis major are now retracted downward and the upper flap upward — and the cephalic vein, lower border of the clavicle, and sternoclavicular articulation exposed; (2) Division of tendons of pectoral muscles and exposure of axilla and subclavian vein (Fig. 552). The cephalic -eSc i /7f Fig. 551. — Incisions for the Removal of the Breast, in Whole or in Part: — A, Incision for Meyer's radical excision of the breast; B, Elliptical incision for excision of small benign tumor. vein, running in the groove between the pectoralis major and minor, is followed up to the humeral attachment of the pectoral muscle. The tendon of the muscle is then freed and divided close to the humerus. The pectoral muscle is retracted downward and inward with a sharp retractor and is severed from the lower border of the clavicle and the sternoclavicular articulation. The vessels in the lines of incision are doubly clamped and divided and the nerves to the pectoral muscle cut. The thoracic wall and the pectoralis minor are thus exposed. The pectoralis minor is traced up to the coracoid process, encircled by the finger (to guard the subclavian vein) and divided, and also retracted downward and inward. The axillary fascia is divided in a line with the vessels and the axillary artery and vein exposed by blunt dissection. (3) Extirpation of axillary glands and fatty areolar tissue. The gauze packing that had been placed under the lower flap earlier in the operation is removed. The axillary connective tissue and fat over the upper part of the latissimus dorsi is divided up to the axillary vein, the left forefinger surrounding it, its 74o OPERATIONS UPON THE THORAX. tip resting on the vein, thus severing it from the fatty areolar tissue in the sulcus bicipitalis brachii, and is then also drawn downward. The lower part of the axillary artery and vein are exposed and cleared up to the site where the sub- clavian vein disappears beneath the clavicle — doubly ligating and dividing vascular branches as encountered. Preserve the two superior subscapular nerves — sacrificing the third (to the latissimus dorsi) in order to expose all infected tissue. (4) The formation of a pedicle of the entire mass over the sternum and removal of the breast, muscles, glands, and fat. The mass of loosened tissues is carefully lifted away from the axilla and thoracic wall, avoiding the tearing away of periosteum and perichondrium. Returning to the already exposed subscapular space, the knife is made to cut perpendicularly down to the thoracic wall, avoiding the fibers of the serratus anticus major muscle. The pectoralis major is cut close to the chest-wall by incisions Fig. 552. — Radical Excision of the Breast, showing Features of the Meyer Opera- tion: — The general method of removal is the primary freeing and division of the origins of the pectoral muscles and dissection of the axilla and subsequent freeing of the mass toward the thoracic wall. The severed muscles are the pectoralis major and minor. The clavicular portion of the former muscle is not here divided. The axillary vein and branches are seen. The proper incision for this exposure is shown at A, Fig. 551. underneath its belly and parallel with and almost on a level with the ribs and intercostal muscles. All vessels encountered are clamped and ligated. The last remaining connection of the tumor mass with the chest wall is now divided close to the sternum, clamping and tying the perforating arteries. (5) Ligation, drainage, and suturing. Throughout the operation vessels are preferably clamped by two hemostats and divided between them. At the end of the operation the clamped vessels are taken up and ligated. The axillary space is drained through a separate opening at its bottom, made in the final steps of the operation — through which two halves of a divided large rubber drainage-tube are put. A small gutter drain is placed in the upper angle of the wound down to the severed tendon of the pectoralis major, the end of which has been whipped over with a suture. The upper and lower angles of the wound are now sutured, continuously or interruptedly, as far toward the RADICAL EXCISION OF MAMMARY GLAND. 741 site of the former breast as possible. An uncovered area of varying size remains, representing the base of the breast. If the thoracic stump of the pectoralis minor (about \ cm. — \ inch long) be left (and this portion of that muscle is very rarely involved) part of the lower flap can often be stitched to this stump and thus the area is prepared for grafting. (6) The raw area left by the unapproximated edges is immediately grafted by long, thin, wide grafts taken from the previously prepared thighs. These are placed longitudinally with the axis of the body, the ends of the grafts resting upon the skin surfaces and the thin margins overlapping each other. (7) Dressing of the wound. The grafted area is covered by long strips of sterilized rubber tissue placed horizontally. Gauze fluffs and compresses are put over this. The exits of drains are protected by split gauze compresses. The entire wound is now covered by abundant gauze fluffs and compresses — the arm is carried across the chest, the axilla having been filled with sterile cotton — the whole dressing being held in place by a Desault bandage. The patient is put in bed, with the elbow supported upon a small pillow. After-treatment. — The patient is kept upon her back for twenty-four hours, after which she is raised by one or more pillows. The elbow remains supported. The dressing is removed on the sixth day. One of the split drainage-tubes is then removed. The other split tube and the smaller tube at the upper angle of the wound are shortened — and a wet dressing with Thiersch's solution is applied. The second dressing is changed two days later, when all drains are removed. Beginning with the tenth to twelfth day, the patient is later taught how to exercise the arm. The patient is expected to have perfect use of the arm, including perpendicular erection. In this operation the supraclavicular space is invaded only when glands are palpable. RADICAL EXCISION OF MAMMARY GLAND, THE AXILLARY, GLANDU- LAR, AND CONNECTIVE TISSUES, AND PARTS OF THE PECTORAL MUSCLES. HALSTED'S OPERATION. Description. — Consists in complete excision of breast, together with removal of the entire pectoralis major (or all save its clavicular portion), as well as a transverse division of the pectoralis minor, with the turning outward of its outer part, and clearing, en masse, of fatty-areolar-glandular tissue from axilla. The substance of the operation, as described by Halsted, is given in the following account. The removal is made from the chest toward the axilla. Preparation. — Breast, nipple, and axilla scrubbed; chest-wall and axilla shaved. Position. — Patient supine, at edge of table, with head and shoulders elevated and arm held at right angle to side. Surgeon on side of operation. Assistant opposite. Landmarks. — Contour of breast and growth; landmarks of axilla and pectoral muscles. Incision. — Begins directly above the upper circumference of mammary gland, well beyond all detectable involvement, and passes outward and down- ward along outer border of gland; curves below around breast and ascends upon inner side upward in a curve to point of beginning, thus entirely en- circling gland; and thence, without stopping, is continued in a curved direction along anterior surface of pectoralis major, to and slightly down upon the anterior fold of the axilla (Fig. 553, M N L). 742 OPERATIONS UPON THE THORAX. Operation. — (I) Incise, throughout, through skin and fatty areolar tissue, clamping or tying all bleeding vessels. (2) Reflect the triangular flap of skin only (L M N) outward to base-line (L N). Dissect back, as a separate flap, the fattv areolar tissue (corresponding to this triangle of skin) to inferior border of pectoralis major, where it becomes a part of the axillary areolar-fattv tissue. (3) Divide costal insertions of pectoralis major, and split the muscle itself in the groove between costal and clavicular portions outward to about opposite scalenus anticus tubercle on first rib (which lies nearly opposite junction of inner and middle thirds of clavicle). (4) Cut through (opposite scalenus tubercle on first rib) the clavicular portion of pectoralis major, directly to clavicle, cutting at right angle to fibers of clavicular portion, thus exposing apex of axillary space. (5) Retract pectoralis major upward and dissect out areolar tissue from under its clavicular portion. (6) Fig. 553. — Operations upon the Mammary Gland:— R, Radical excision of the breast, Hal- sted's operation; S, Incision for radical excision of the breast, Warren's operation. Continue splitting of pectoralis major, in original line, out to humerus and sever the humeral attachment of the costal (sternal) portion. (7) Raise the entire mass of integument, mamma, and fatty-areolar tissue upward and outward, and while the submuscular fascia is thus put upon the stretch, this mass is stripped from the chest-wall and pectoralis minor, closely hugging the ribs and removing, if possible, the fascial sheath of the pectoralis minor, beginning above at the upper and inner part of the wound and proceeding downward and outward. (8) Having reached in this clearing, and well exposed, the lower (outer) margin of pectoralis minor, divide that muscle just below its center, at right angle to its fibers. (9) Divide fascia and areolar tissue over coracoid attachment of pectoralis minor and turn them inward, preparatory to the upward reflection of outer part of pectoralis minor. (10) Retract upward and outward the severed outer part of pectoralis minor with the retractor that had heretofore retracted pectoralis major alone, (n) RADICAL EXCISION OF MAMMARY GLAND. 743 Dissect out the loose fatty-areolar tissue beneath pectoralis minor near its insertion, carefully clearing the small vessels (mainly veins) and ligating them off close to axillary vein. (12) Expose subclavian vein at its highest subclavicular point and dissect away the entire contents (fat, areolar tissue, glands, and many small vessels) of the axilla, with extremest care and thor- oughness and with a sharp knife, aided by forceps. Expose and strip axillary vein absolutely clean of all extraneous tissue, ligating its branches close to main trunk, holding the tissues and pushing the vein from them, rather than the reverse. Expose axillary artery, in the majority of cases, and remove all loose tissue above the axillary vessels and axillary plexus of nerves. (13) Having cleared axillary region, grasp mass of tissues to be removed, drawing ; t outward and somewhat upward with left hand, to put upon slight stretch, Fig. 554. — Halsted's Radical Excision of the Breast: — Showing the primary detach- ment of the breast and pectoral muscles from the thoracic wall and subsequent freeing of the mass toward the axillary structures. The thoracic end of the severed pectoralis minor is shown. The separated pectoralis major and proximal end of the pectoralis minor have retracted toward their origins. The breast retains its connection to these and to the axillary connective tissue. and cut away the mass of fascia from the lateral thoracic wall (inner axillary wall), closely hugging ribs and serratus magnus. (14) Just prior to reaching junction of posterior and lateral axillary walls, the original triangle of skin (freed early in the operation) (R) is drawn outward by an assistant, to aid in exposing the tissues lying upon the subscapularis, teres major, and latissimus dorsi. The surgeon, taking a new hold upon the mass to be removed, now cleans out the posterior axillary wall, from within outward. Thus the subscapular vessels are conveniently exposed, and are tied or clamped before being cut. The subscapular nerves are exposed, and may or may not be removed, their retention being preferable. (15) Turn the mass of tissues back into their original position and divide their connection with the thorax by a single stroke of the knife passing along the first incision made, namely, 744 OPERATIONS UPON THE THORAX. from L to N, removing everything in one piece. (16) Approximate circum- ference of wound by a buried purse-string suture of strong silk. Only the base, L N, of the triangular skin-flap (L M N) is included in the purse-string. The apex and rest of the triangular flap are shifted to a new and lower position so as to form a lining for the fornix of the axilla. (17) No drainage is established. Uncovered portion of wound frequently heals by organization of the blood-clot and should be covered with rubber tissue. Comment. — Every bleeding point in this extensive field of operation is immediately clamped. The divided pectoralis minor should be sutured with chromic gut. RADICAL EXCISION OF MAMMARY GLAND. WARREN'S OPERATION. Description. — Consists in complete excision of breast, together with removal of sternal part of pectoralis major entirely; and also in removal of entire pectoralis minor, or a simple turning back of its divided ends; with clearing out, en masse, of fatty-areolar-glandular tissues of axilla, aided by a transverse division of clavicular portion of pectoralis major; and the forma- tion of one or two cutaneo-areolar flaps from the lateral thoracic wall to cover over the main wound, in conjunction with its own margins. Preparation — Position — Landmarks. — Same as in the Radical Excision of the Breast by Halsted's method (page 741). Incisions. — (1) Outer Primary Incision (Fig. 553, S) begins at anterior margin of axilla, at its junction with the arm, and passes along just above anterior border of axilla and the lower margin of pectoralis major, encircling the lower circumference of the breast to its inner and lower quadrant. (2j Inner Primary Incision (D C) begins at center of anterior axillary border (D) and, passing inward and downward, diverges from first incision to encircle upper and inner part of circumference of breast and meet first incision at point of its ending (C). (3) Upper Secondary Incision (E F) is made later, passing from point E, on upper primary incision, to clavicle (F), dividing the clavicular portion of pectoralis major at right angle to its fibers. (4) Lower Secondary Incisions (H and I) are made at end of operation, for the purpose of raising flaps to cover the main wound, the incisions (one, or both if necessary) begin from lower primary incision at point G (not shown in figure), and pass upward (I) and downward (H). Operation. — (1) Incise through skin and fatty-areolar tissue along above primary lines, clamping all bleeding vessels. (2) Dissect back margins of wound so as to expose base of gland in its entire circumference, carrying incision to pectoralis major, which is freely exposed along entire upper inci- sion. (3) Divide sternal portion of pectoralis major from thorax, and throw entire mass outward and downward. (4) Sever humeral insertion of pectoralis major, exposing pectoralis minor and axilla. (5) Upper secondary incision is now made, to expose axillary vessels up to where they pass beneath the clavicle. (6) Divide the pectoralis minor transversely and reflect halves outward and inward, or entirely remove them. (7) Clear, by careful dis- section, axilla of all extraneous tissues and unimportant vessels, from clavicle to lower part of axilla, including all fatty, glandular, and areolar tissue lying in front and behind the vessels, as well as the areolar tissue between serratus magnus and subscapularis. Branches of axillary vein and artery are tied close to their vessels, and any thoracic or scapular nerves which are in the way of thorough clearing of the axilla are sacrificed, unless they can be tern- ORDINARY EXCISION OF MAMMARY GLAND. 745 porarily displaced. (8) Reflect mamma, with pectoral muscles and adherent axillary contents, outward and sever them from thorax in one continuous mass by a few sweeps of the knife along the outer primary incision. (9) Lower secondary incisions are now made, and the cutaneo-areolar flaps represented by them are raised by undercutting, and are ready to be shifted inward, (io) Margins of original primary incisions, together with the margins of the flaps raised for that purpose, are approximated by suture, so as to entirely, if possible, cover in the whole wound and secure primary union, (n) Tem- porary horsehair or gauze drainage is used for twenty-four hours. (12) Voluminous dressings, including binding of arm to chest, are used. Comment. — Whatever muscle tissue has been divided and not subse- quently removed, should be repaired by chromic catgut suturing at the end of the operation. If indicated, the upper secondary incision may be con- tinued above the clavicle and the supraclavicular glands removed from the posterior cervical triangle. ORDINARY EXCISION OF MAMMARY GLAND BY ELLIPTICAL INCISION. Description. — Breast is circumscribed by an elliptical incision, with a straight continuation outward to the center of the axilla, and another straight Fig. 555. — Excisions of the Mammary Gland:— A, Excision of the breast by the ordinary elliptical incision, the upper end of the ellipse being extended into the axilla; B, Excision of the breast subcutaneously, by an inferior curved incision. incision continued downward toward the sternum. Mamma is simply dis- sected from pectoralis major muscle. Axilla is not invaded unless glands are felt through upper end of wound, and, if so, these glands are removed by blunt dissection through a limited exposure of axilla. Preparation. — Same as for Radical Excision (page 741); 746 OPERATIONS UPON THE THORAX. Position. — Same as for Radical Excision (q. v.). Or patient's hand may be placed behind nape of neck. Surgeon may stand on side of operation, cutting from above downward on right, and from below upward on left; or may stand on right side for either breast, leaning over thorax and cutting from above downward when operating on left side. Landmarks. — Same as for Radical Excision (q. v.). Incision. — An elliptical incision is made, with its long axis parallel with anterior axillary fold (with arm in above position) ; its center corresponding with nipple; its width regulated by size of breast (or tumor); its upper and lower angles being just beyond the mamma. The ellipse itself does not extend the full length of the incision. From the upper angle of the ellipse a straight incision is carried up to opposite the center of the axilla. From the lower angle of the ellipse another straight incision is also carried down- ward a short distance below the breast. (See Fig. 555, A.) Operation. — (1) Keeping parts tense by left hand, the full length of the incision, including upper curve of ellipse, is completed at one stroke. The lower curve of the ellipse is made with a second stroke of the knife, joining the straight portions of the first incision at upper and outer and at lower and inner circumference of breast, respectively. Incise through skin and super- ficial connective tissue throughout. (2) Having clamped bleeding vessels, the incision is carried down to pectoral muscle along upper line of ellipse, while skin above is drawn upward by assistant and breast downward by surgeon's left hand, the incision passing well above the upper limit of the breast. (3) Drawing breast away from thoracic wall, surgeon frees it from pectoralis major, beginning along the upper line. (4) Assistant now draws breast upward, and surgeon, retracting skin downward with left hand, cuts down to thoracic muscles along lower line of ellipse, the incision passing well below the lower limit of the breast. (5) While under traction, the con- nective tissue of breast to thorax is now severed toward its axillary aspect, together with the vascular connections, which are the last cut, and the breast thus freed from chest. All vessels cut are at once clamped, and clamped in advance of section, where possible. The pectoralis major is left bare. (6) Right index-finger is inserted into axilla through upper end of wound and enlarged glands felt for. If none be found, axilla is not opened up further. (7) If enlarged axillary glands be felt, the incision is continued upward into armpit, the axillary space exposed, and the glands removed with as little disturbance and damage to neighboring tissues as possible, and generally by blunt dissection. (8) Margins of wound, even the elliptical portion, are generally capable of being brought into apposition, and are sutured throughout. (9) If temporary drainage be indicated, it is provided for at the lower angle of wound. Abundant dressing is applied and arm bound to side. Comment. — Where breast is involved by small innocent tumor, merely the elliptical portion of the above incision is used, the straight portions ex- tending above into axilla and below toward sternum being omitted. SUBCUTANEOUS EXCISION OF MAMMARY GLAND BY INFERIOR CURVED INCISION. Description. — Through a curved incision made in the inferior mammary fold, the breast is turned upward and dissected (enucleated) in whole or in part from out of its overlying capsule of skin and fascia, generally leaving the nipple intact. Indicated in non-malignant conditions for partial or com- plete removal of the mamma. GENERAL SURGICAL CONSIDERATIONS. 747 Preparation — Position. — Same as for Radical Excision. Landmarks. — Inferior mammary fold (at junction of lower circumference of breast with chest-wall). Incision. — -Curved incision passing around beneath the lower margin of breast in the mammary fold, extending sufficiently far up on either side to enable breast to be turned upward and backward. (See Fig. 555, B.) Operation. — Incise through skin and fascia down to pectoral fascia. Having gotten between the deep layer of the superficial pectoral fascia and the sheath of the pectoralis major, the breast is readily detached by blunt dissection and turned upward and outward — and then freed from its cutaneo- areolar covering from behind forward. The nipple is left, if possible, to lessen disfigurement. All bleeding vessels are ligated with gut. The remain- ing portion of the breast, if any, is returned to its normal site (otherwise the cutaneo-areolar capsule of the enucleated breast is turned back into place) and the margins of the wound are carefully sutured to avoid scarring. No drainage is used. A snug dressing is applied, to obliterate dead spaces. III. THE SUPERIOR MEDIASTINUM. SURGICAL ANATOMY. Description. — The mediastinum is the region of the thoracic cavity be- tween the pleura? laterally, and the thoracic walls anteriorly and posteriorly. That portion above the upper level of the heart is the superior mediastinum. That portion below the upper level of the heart is divided into anterior, middle, and posterior mediastina, the anterior being in front of the heart, the posterior behind the heart, and the middle enclosing the heart. Boundaries of Superior Mediastinum. — Anteriorly, manubrium sterni. Posteriorlv; bodies of first, second, third, and fourth dorsal vertebrae. Later- allv; pleura\ Superiorly; upper opening of thorax. Interiorly; plane passing horizontally backward from manubrio-gladiolar junction to lower portion of body of fourth dorsal vertebra — nearly coinciding with upper portion of pericardium. Contents of Superior Mediastinum. — Origins of sternohyoid and sternothyroid, and lower ends of longi colli muscles; transverse arch of aorta; innominate, thyroidea ima, left carotid, and left subclavian arteries; in- nominate, superior vena cava, and left superior intercostal veins; pneumo- gastric, left recurrent laryngeal, phrenic, and cardiac nerves; trachea; esopha- gus; thoracic duct; thymus gland, or its remains; bronchial lymphatic glands; superior sterno-pericardiac ligaments. SURFACE FORM AND LANDMARKS. The planes limiting the upper and lower boundaries of the superior mediastinum are, respectively, those corresponding with the upper opening of the thorax above, and the junction of the manubrium and gladiolus below. GENERAL SURGICAL CONSIDERATIONS. The superior mediastinum (as well as the anterior and middle mediastina) is exposed in the operation of anterior mediastinal thoracotomy (page 748). It is also exposed in the operations upon the innominate artery, in excisions of the sterno-clavicular articulation and of the manubrium. 748 OPERATIONS UPON THE THORAX. IV. THE ANTERIOR MEDIASTINUM. SURGICAL ANATOMY. Boundaries. — Anteriorly; all of gladiolus sterni, with parts of left fourth, fifth, sixth, and seventh costal cartilages. Posteriorly; pericardium. Laterally; pleurae. Contents. — Origin of triangularis sterni muscle; areolar tissue; lymphatic vessels and glands (anterior mediastinal glands) ; thymus gland (or its remains) ; inferior sterno-pericardiac ligaments. ANTERIOR MEDIASTINAL THORACOTOMY BY LONG MEDIAN INCISION — MILTON'S OSTEOPLASTIC ANTERIOR MEDIASTINOTOMY. Description. — Exposure of the superior, anterior, and middle mediastina through a temporary longitudinal division of the sternum in the median line. (The posterior mediastinum may also be reached, in part, by this incision, but is better approached by a separate operation.) Resorted to for gaining very free access to the entire contents of the mediastina mentioned, especially for the removal of anterior mediastinal growths and pus, — the esophagus, trachea, and bronchi being more readily reached and treated from behind (Posterior Mediastinotomy). Preparation. — Beard and presternal hair shaved, if necessary. Position. — Patient supine, shoulders elevated, head supported, neck prominent — Surgeon to right — Assistant opposite. Landmarks. — Median line of neck and sternum; thyroid cartilage; ensiform cartilage. Incision. — From lower part of thyroid cartilage to base of ensiform cartilage, made in median line of neck and sternum. (The cervical portion of the incision is to give room for the lateral retraction of the split sternum.) (See Fig. 556, A.) Operation. — (1) Incise through the skin and superficial connective tis- sue along the neck — and down to the bone over the full length of the sternum. Clamp or ligate superficial vessels. (2) Deepen the cervical incision by re- tracting the sternohyoid and sternothyroid muscles and dividing the deep cervical fascia, controlling all vessels encountered. The trachea is thus exposed from the thyroid cartilage to the episternal notch, except that the isthmus of the thyroid gland is not divided. If necessary, it may be divided between two ligatures. Expose the episternal notch by separating the fascia from it outward on either side to the origins of the sternomastoids. (3) Free the posterior surface of the manubrium sterni downward as far as possible, by means of curved periosteal elevator and finger, depressing the important structures downward. The more nearly this is done subperiosteally, the greater the protection to the soft parts adjacent. (4) By means of a thin, special saw, divide the sternum longitudinally in the median line, from above downward — dividing it through its entire thickness above, where the saw- teeth can be protected by a thin metallic guide or spatula slipped behind the upper portion of the sternum — but dividing it elsewhere, at first, very nearly but not quite through, and not extending the division below the base of the ensiform cartilage. (5) Detach the ensiform cartilage from the gladiolus by stout, curved, blunt scissors or bone-forceps, avoiding the neighboring struc- tures of importance, especially the peritoneum. (6) Grasp the margins of the sawed sternum on both sides by means of broad retractors with teeth— and steadily and carefully draw the divided bones apart by outward and ANTERIOR MEDIASTINAL THORACOTOMY. 749 slight upward traction. Draw the ensiform cartilage downward. Pass a director or thin spatula upward, inserting it between the lower end of the gladiolus and the disconnected ensiform cartilage, hugging the posterior surface of the lower portion of the gladiolus — and, upon this protector, com- plete the division of the lower part of the gladiolus by means of the special saw or bone-cutting forceps, working from below upward. (7) The bony- division having been completed, additional traction is made upon the divided edges of the sternum, the separation being started by prizing the split sides of the sternum asunder with some stout, blunt instrument — detaching by Fit;. 556. — Incisions for Exposing the Mediastina: — A, A, Milton's anterior mediastinal thoracotomy for exposing superior, anterior, and middle mediastina; B, Incision for thoraco- plasty flap exposing anterior and middle mediastina (corresponding with sternum and third, fourth, and fifth costal cartilages); C, C, Incision for vertical thoracoplastic flap exposing superior mediastinum (corresponding with manubrium and first and second costal cartilages); D, D, Incision for horizontal thoracoplastic flap exposing superior mediastinum (corresponding with manubrium and first and second costal cartilages). (Thorax modified from Spalteholz.) blunt dissection all binding tissues, or dividing them with scissors, as soon as revealed by the gradual separation of the parts, and, where necessary, taking renewed holds upon the edges of bone with the retractors, as the gap increases. (8) An interval of between 5 and 8 cm. (about 2 to 3 inches) is thus ordinarily attainable. Through this opening the contents of the superior, anterior, and middle mediastina are readily reached — and even the posterior mediastinum may also, though of course less easily, be thus reached on the right side, after separating the pericardium and pleura. The further steps of the operation will depend upon the object for which performed — but, in any case, should be carried on with exceptional care, owing to the unusually important nature of the parts involved, and should be done chiefly by means 75° OPERATIONS UPON THE THORAX. of blunt dissection. (9) At the close of the operation, the edges of the sternum are approximated by four to six silver-wire sutures passed through drill-holes ■ — gauze or other drainage having been temporarily introduced behind the sternal notch and below the lower end of the gladiolus — and the skin wound closed except opposite the drainages. Comment. — The pleura and peritoneum are both in great danger of injury — wounds of these should be immediately closed by circular ligation of their mouth, if small; and by suture, if large. The principal tissues which interfere with the separation of the parts are those about the left innominate vein, crossing behind the manubrium sterni, in the line of the division, above; and about the ensiform cartilage below. Especial care is necessary as to respiration, due to collapse of lungs, and a Fell-O'Dwyer instrument should have been provided previously for main- taining artificial respiration. Costal breathing ceases with division and separation of the sternum, though the lungs may not collapse on that account alone. In special cases where dyspnoea may be anticipated, a preliminary tracheotomy is sometimes done. ANTERIOR MEDIASTINAL THORACOTOMY BY OSTEOPLASTIC RESECTION OF PART OF STERNUM CORRESPONDING WITH THIRD, FOURTH, AND FIFTH COSTAL CARTILAGES. Description. — The anterior mediastinum, and also the middle medias- tinum, may be exposed by the osteoplastic resection of that portion of the sternum corresponding with the third, fourth, and fifth costal cartilages — which portion is temporarily turned back, exposing a large part of the anterior and middle mediastina and their contents. This operation is less extensive and severe than Milton's, and is indicated where a more limited exposure will suffice — especially for the removal of glands, small growths, evacuation of pus; and for the exposure of the heart and pericardium in the treatment of wounds and evacuation of pus. Preparation. — Chest-wall shaved, if necessary. Position. — Patient supine, chest elevated and resting upon some object which will render the anterior thoracic aspect prominent. Surgeon on left. Assistant opposite. Landmarks. — Gladiolus sterni, between chondro-sternal articulations of third, fourth, and fifth costal cartilages; line of internal mammary artery (see page 57). Incision. — (1) Upper transverse incision passes on a level with the upper border of third costal cartilages, not extending more than 1.2 cm. (about \ inch) beyond either sternal border (to avoid the internal mammary artery). (2) The lower transverse incision passes similarly on a level with the lower border of the fifth costal cartilages, between points about 1.2 cm. (about \ inch) beyond the sternal borders. (3) The vertical incision joins the left ends of the two transverse incisions, passing flown between the left internal mammary artery and the left margin of the sternum. These incisions outline three sides of a square, having the hinge of the flap at the right margin of the sternum. (See Fig. 556, B.) Operation. — (1) Incise through skin, fascia, and fibers of the pectoralis major, down to the sternum and intercostal membranes, using care over the intercostal spaces that the knife does not penetrate the thorax. Clamp and ligate the superficial vessels cut along the lines of incision — but do not separate the skin and fascia from the sternum. (See Fig. 557.) (2) The costal cartilages are well exposed where the vertical incision crosses them and are divided with blunt-pointed cartilage-pliers with great care, to avoid injury ANTERIOR MEDIASTINAL THORACOTOMY 751 to pleura and pericardium. This having been dune, the left margin of the sternum, thus freed of its third, fourth, and fifth cartilages, is now drawn slightly forward with toothed retractor, and, while held in this position, the posterior surface of that portion of the sternum is freed of triangularis sterni muscle and connective tissue by means of a slightly curved periosteal elevator. (3) The sternum is now divided where the upper and lower transverse inci- sions cross it — and this is best accomplished, in those cases where it has been possible to clear the posterior surface of the sternum entirely across to the opposite border, by means of a Gigli saw conducted beneath the sternum, with which the section is readily made. In other cases the section may be made (though with less neatness and precision and more danger) by means of stout, curved, blunt-pointed, bone-cutting pliers, the lower blade hugging the sternum closely. (4) This section of the sternum having been freed upon Fig. 557.— Anterior Mediastinal Thoracotomy, by an Osteoplastic Flap Consisting of Soft Parts and Sternum Corresponding with Third, Fourth, and Fifth Costal Carti- lages :— A, Osteoplastic flap turned to left : B. Pectoralis major muscle ; C, C, Intercostal arteries ; D, Costal cartilage divided by instrument; I£. Costal cartilage partly broken in hinging back the flap; F, F, Drill-holes; ("». Triangularis sterni muscle; H. H. Lungs and pleura;, the latter extending further toward the middle line; I, Heart and pericardium. three of its sides, its posterior surface having been cleared, and with the soft parts still adherent to its anterior surface, it is now to be partly turned, parti} broken back upon the structures along its right margin, as upon a hinge, the costal cartilages generally snapping in part or entirely, though sometimes bending. (5) The anterior mediastinum, and also the middle mediastinum (although of course less fully), are now exposed — and their contained struc- tures may be reached by gentle manipulation and blunt dissection — and the special object of the operation accomplished. (6) At the close of the opera- tion, the osteoplastic flap is turned back into place. It is well to drill holes (two above and two below) for chromic gut ligatures, or silver wire, along the upper and lower transverse divisions of the sternum, before replacing the flap (holding the detached piece of sternum with strong bone forceps while drilling; and protecting the inferior surfaces of the margins of the upper and lower intact pieces) — and tightening the sutures when the piece is in place. If thought necessary, the costal cartilages may be similarly drilled and tied on either side of the line of section. (7) Temporary drainage should be pro vided — which may be done by excising a small portion of one of the costal 752 OPERATIONS UPON THE THORAX. cartilages at its articulation with the sternum, as well as a limited portion of the margin of the sternum at that point, in the form of a semicircle. The skin-portion of the osteoplastic flap is sutured throughout most of its extent, leaving an opening for drainage. Comment. — Instead of the above window opening laterally upon a vertical hinge, one may be (though less easily) formed opening upward or downward upon a transverse hinge across the sternum, by making two vertical incisions just outside of the borders of the sternum and the transverse incision on a level with the lower border of the fifth costal cartilage (where the hinge is to be above). The window may be placed higher or lower than indicated in the above operation. OTHER OPERATIONS UPON THE ANTERIOR MEDIASTINUM. See all operations upon the Heart and Pericardium — which, lying in the middle mediastinum, are reached through the anterior mediastinum, V. THE MIDDLE MEDIASTINUM. SURGICAL ANATOMY. Boundaries. — Anteriorly; limits of anterior mediastinum. Poste- riorly; limits of posterior mediastinum. Laterally; pleura'. Contents. — Heart and pericardium; ascending aorta; pulmonary artery and its two branches; arteries of the phrenic nerves; superior vena cava; right and left pulmonary veins; vena azygos major; phrenic nerves; roots of lungs; bifurcation of trachea; two bronchi; bronchial lymphatic glands. OPERATIONS UPON THE MIDDLE MEDIASTINUM. For operations upon the Middle Mediastinum, see operations upon the Pericardium and Heart (pages 780 and 785). For other operations exposing the Middle Mediastinum, see operations upon the Anterior Mediastinum (pages 748 to 752). For operations upon the thoracic esophagus and trachea and upon the bronchi, see Posterior Mediastinal Thoracotomy (page 752) — the first being in the Posterior Mediastinum — the last two in the Middle Mediastinum, but best reached through the Posterior Mediastinum. VI. THE POSTERIOR MEDIASTINUM. SURGICAL ANATOMY. Boundaries. — Anteriorly; pericardium; roots of lungs. Posteriorly; vertebral column (below inferior border of fourth dorsal vertebra) . Laterally ; pleura?. Contents. — Descending aorta; greater and lesser azygos veins; pneumo- gastric nerves; splanchnic nerves; esophagus; thoracic duct; posterior medias- tinal lymphatic glands. POSTERIOR MEDIASTINAL THORACOTOMY BV THORACOPLASTY FLAP — BRYANT'S OPERATION. Description. — Exposure of the posterior mediastinum by means of an osteoplastic flap about 8 to 10 cm. (about 3 to 4 inches) square, and generally including the width of three ribs raised over the site of the operation — part of the central rib being permanently sacrificed from angle to outer end of POSTERIOR MEDIASTINAL THORACOTOMY. 753 transverse process, and similar parts of the other two returned. Usually performed for the removal of foreign bodies in the esophagus, trachea, and bronchi, and for the evacuation of pus. Some of the more posterior contents of the middle mediastinum are thus also accessible from this opening. Position. — Patient partially upon side and chest, with the side of opera- tion uppermost, and resting upon some object in order to increase the width of the intercostal intervals at the site of operation. The scapula is drawn forward to increase the interval between the vertebrae and the vertebral bor- der of the scapula. Surgeon on side of operation. Assistant opposite. Landmarks. — Position of upper ribs; spinous processes of upper dorsal vertebra^ with corresponding ribs; vertebral border of scapula; root of spine of scapula (which generally corresponds to the interspace between third and Fig. 558. — Operations upon the Thoracic Cavity: — A, Posterior mediastinal thora- cotomy, by thoracoplastic flap; B, Position for paracentesis thoracis in the eighth intercostal space in the line of the inferior angle of the scapula. (Thorax modified from Bardeleben, Haeckel, and Frohse.) fourth dorsal spines). The site of the operation is determined by the posi- tion of the foreign body to be removed. Parts of three ribs are generally in- cluded in the operation, the central one being at the center of the field. Some- what readier access is gotten to the esophagus from the left side, though at the level of the usual operation the esophagus is practically in the middle line. The trachea usually bifurcates opposite the fourth dorsal vertebra (sometimes the fifth). Where the site of the operation cannot be previously determined, the left fourth, fifth, and sixth ribs are generally chosen. Incision. — In the form of three sides of approximately a three-inch square — the fourth side being represented by the spinous processes of the vertebrae. This area is so placed as to have its center over the central one of the three ribs to be removed — the upper and lower parallel incisions passing above and below the other two ribs respectively. (See Fig. 558, A.) Operation. — (i) Incise the three sides of the outline indicated above, through skin, fascia, and muscles down to the ribs, carefully avoiding pene- 48 754 OPERATIONS UPON THE THORAX. trating the intercostal spaces. Clamp all cut vessels. Free up the thick flap of soft parts from the ribs and turn it over the spinous processes to the opposite side. Ligate the previously clamped vessels, and others as exposed. (See Fig. 559.) (2) Make a longitudinal incision over the center of the outer aspect of the central one of the three ribs, through the periosteum, from the outer end of the transverse process of the vertebra to the angle of the rib — free it subperiosteal!}- with curved periosteotome (or by a piece of silk con- ducted between bone and periosteum) — pass a Gigli saw between rib and periosteum, guarding the pleura, and remove the portion of rib above indi- cated, and discard. (3) The inner and outer ends of the exposed portions of the upper and lower ribs are now similarly exposed subperiosteallv, without Fig. 559.— Posterior Mediastinal Thoracotomy, by Thoracoplasty Flap: — A, Skin and muscle flap turned horizontally backward ; B. Flap of part of fourth rib and intercostal muscles turned upward ; C, Flap of part of sixth rib and intercostal muscles turned downward ; D, D, Verte- bral ends of fourth and sixth ribs, drilled forwiring ; E, Intercostal artery, vein, and nerve ; F, F, F Fourth, fifth, and sixth dorsal nerves exposed and retracted ; G, Pleura and lung ; H, Broad retractor displacing pleura and lung; I, Thoracic aorta; J, Left bronchus; K, Esophagus protruded into wound by sound introduced through mouth. The operations of Bronchotomy and Thoracic Esopha- gotomy are shown at J and K, respectively. The pulmonary and bronchial vessels are omitted, for clearness. freeing the intervening portions more than can be helped, and especially without isolating the upper rib from its upper attachment and the lower rib from its lower attachment. Two holes are drilled at either end of the yet undivided ribs for future wiring. Both ribs are then divided between the pairs of drilled holes, by means of a Gigli saw. (4) The intercostal arteries in the field are now ligated at the inner and outer side of the wound. The intercostal nerves are carefully retracted throughout the operation, it being SURGICAL ANATOMY OF THE DIAPHRAGM. 755 unnecessary to divide them. The periosteum forming the bed of the central rib is now very carefully divided lengthwise of its course. Through this opening the pleura is carefully detached and is further separated by the finger from the muscular and bony wall of the thorax corresponding to the extent of the wound, the separation being accomplished during expiration. At either side of the wound, in line with the divided ribs, the remaining chest-wall is divided while the pleura beneath is carefully guarded by an instrument or the finger. These two vertical incisions last made, crossing the transverse one through the bed of the middle rib's periosteum, make, by an H-shaped incision, two small flaps — the upper one, containing the upper rib as extensively adherent as possible (for nutrition), is now turned upward upon its hinge of soft parts — and the lower one, with the lower rib similarly attached, is turned downward in like fashion — care being taken not to injure the intercostal vessels and soft tissues above the upper rib, nor below the lower rib. (5) The posterior mediastinum is thus exposed — and its contents, as well as some of the more posteriorly situated contents of the middle mediastinum, are accessible after careful separation of important structures by means of blunt dissection, instrumental retraction, and the use of the fingers. The pleura, especially, is carefully pushed externally out of the way and so guarded as to avoid opening it. The trachea, bronchi, and esophagus may be both felt and seen. The important vessels of the posterior and middle mediastinum (see Surgical Anatomy) are to be carefully guarded. When trachea, bronchi, or esophagus are to be opened, thev are incised, after being steadied with toothed forceps, in their longitudinal axis — and subsequently not sutured — but the wound packed down to the incised tube, for the escape of all drainage through a drainage-tube placed in the center of the gauze packing. (6) In completing the operation, the middle one of the three ribs is not replaced — the upper and lower ribs are turned back into place and wired (or sutured with chromic gut) through the previouslv drilled holes. The drainage will pass out of chest through the incision in the bed of the middle rib — and will escape externally through a convenient opening left beneath the skin and muscle flap which is only partially stitched into place. Comment. — (1) The scapula should be displaced forward out of the way, and so held by an assistant. (2) It might be better to plan the skin incision on a somewhat larger scale (say 2.5 cm., or about 1 inch, larger) so that the skin suture-line would not directly coincide with the bone-sections. (3) All bleeding should be controlled as encountered — first by clamp, then by liga- ture. (4) The pleura is to be widely separated around the margin of the opening by the finger — to enable freer displacement of the mediastinal con- tents. (5) Below the arch of the aorta the esophagus is more readily reached from the right — above the arch, it may be reached from either side, although somewhat better from the left. (6) Removal of a body from the esophagus below the body of the ninth dorsal vertebra is very difficult and hardly justi- fiable. (7) The left bronchus is reached with greater difficulty and risk of hemorrhage. VII. THE DIAPHRAGM. SURGICAL ANATOMY. Attachments of Diaphragm. — Anterior (sternal) part; inferior and posterior border of ensiform cartilage; neighboring posterior surface of ante- rior aponeurosis of transversalis muscle. Lateral (costal) part; inferior border and inferior surface of the cartilages and bony parts of the sixth or 756 OPERATIONS UPON THE THORAX. seventh inferior ribs. Posterior (vertebral) part; (a) ligamentum arcuatum externum (the thickened anterior layer of lumbar fascia extending from tip of transverse process of second lumbar vertebra to tip of twelfth rib); (b) ligamentum arcuatum internum (the thickened iliac fascia arching over the psoas, from the side of body of second lumbar vertebra to tip of transverse process of same vertebra ) . (c) right crus of diaphragm (arising from anterior surface of bodies of first to third, or fourth, lumbar vertebra; from inter- vening fibro-cartilages; from anterior common ligament); (d) left crus of diaphragm (arising from anterior surface of bodies of first to second, or third, lumbar vertebra; from intervening fibro-cartilages; from anterior common ligament). The insertion of these various origins is into the ante- rior, posterior, and lateral aspects of the central tendon of the diaphragm. Structures in Relation with Diaphragm. — Superiorly (thoracic cavity); pleura and lungs; pericardium and heart. Inferiorly (abdominal cavity); peritoneum; liver; stomach; spleen; pancreas; kidneys; suprarenal capsules. Upper Limits of the Diaphragm. — Right Leaflet, on level with junction of fifth costal cartilage with sternum (about 2.5 cm., or 1 inch, below the nipple). Left Leaflet, on level with junction of sixth costal cartilage with sternum. Central Tendon, about on level with end of sternum, or seventh ch< >ndro-sternal articulation. Boundaries of Lower Thoracic Opening. — See Thoracic Wall, page 731. Structures Passing through Floor of Thorax (Diaphragm). — See Thoracic Wall, page 731. Other Relations of Diaphragm. — (a) The fibers of diaphragm are absent or deficient in the interval between the sides of the muscular strip from ensiform cartilage to cartilages of neighboring ribs — areolar tissue occupies this position, covered above by pleura, and below by peritoneum. (b) The central tendon of the diaphragm is blended with the pericardium. (c) After forced expiration, the right diaphragmatic arch is on a level, ante- riorly with fourth costal cartilage; laterally, with fifth, sixth, and seventh ribs; posteriorly, with eighth rib; similar measurements on left generally being from one to two ribs' width lower. In forced inspiration, there is a descent of from 2.5 to 5 cm. (about 1 to 2 inches), (d) Circumferentially, the diaphragm is higher in the median line, and lower at the sides — but the central tendon supporting the heart is lower than the sides, (e) For a narrow interval around the lower and posterior circumference, the diaphragm is not covered by pleura, but is in immediate contact with the chest-wall, (f) The costo-phrenic sinus is that area over which the parietal and visceral layers of the pleura are in constant contact, whether in inspiration or ex- piration — and is represented by the line of reflection of the diaphragmatic pleura onto the intrathoracic wall. TRANSTHORACIC EXPOSURE OF DIAPHRAGM BY PARTIAL EXCISION OF TWO OR THREE RIBS. Description. — The upper (thoracic) surface of the diaphragm is exposed (at the site of the diaphragmatic lesion) by means of the partial excision of two or three ribs performed subperiosteally, through a single incision between them. Or the site may be exposed by turning back a flap of overlying soft parts and then excising the indicated parts of the ribs, — or an osteo-thoraco- plastic flap may be temporarily turned aside and replaced at the end of the TRANSTHORACIC EXPOSURE OF DIAPHRAGM. 757 operation. (See operations upon the pleura and heart.) Having opened the chest-wall over the area, the diaphragm may be approached in one of several ways — below the reflection of the pleura, — subpleurally (after detaching and pressing back the unopened pleura), — transpleural!}- (the pleura; being non- adherent), — or through adherent pleural surfaces. Indicated for the evacua- tion of pus in subphrenic abscess; for the repair of wounds of the diaphragm; for hernia through the diaphragm. In subphrenic abscess, the approach is usually made by the lumbar, iliac, or lateral thoracic routes, in order of preference — parts of the ninth and tenth ribs being incised in simple sub- phrenic abscess — and part of the eighth if the pleura be involved. The site of the operation may be on either side and will be determined by the lesion and the physical signs. Generally from 7.5 to 10 cm. (about 3 to 4 inches) of the ninth and tenth ribs, between the anterior axillary and scapular lines, Fig. 560.— Transthoracic Exposure of Diaphragm through the Right Ninth Inter- costal Space : — A, Latissimus dorsi muscle ; B, Serratus magnus muscle ; C, Obliquus externus ab- dominis muscle; D, D, Resected ends of ninth and tenth ribs, the periosteal bed extending between the exposed ends, the intercostal vessels and nerves showing through the periosteum ; E, Anterior layer of periosteum retracted and everted ; F, Posterior layer of periosteum, together with externa] and internal intercostal muscles, retracted ; G, Pleura displaced upward ; H, Diaphragm. as indicated, are excised through a single incision made between them, in the case of an abscess between the liver and diaphragm, which is usually ap- proached subpleurally. Where the abscess is near the dome of the diaphragm, the transpleural approach at a higher level generally must be used. The excision of one or more costal cartilages in the mammary line may suffice. For operations for hepatic abscess and empyema, see Operations upon the Liver and Pleura. Position. — Determined by the lesion — and will be such as to conve- nientlv expose the area — in this case in the semi-prone position. Landmarks. — Site of lesion; line of pleura; line of diaphragm. Incision. — In the center of the interspace between the ninth and tenth ribs — the center of the incision being midway between the anterior axillary and scapular lines — and about 13 cm. (about 5 inches) in length, so as to provide for the removal of about 9 cm. (about 3^ inches) of each rib. 758 OPERATIONS UPON THE THORAX. Operation. — (i) Incise through skin, fascia, and overlying thoracic muscles, down to the plane of intercostal muscles, clamping all bleeding vessels. Free back the upper and lower lips of the wound upon this same plane, until the ninth and tenth ribs are reached and exposed in their entire width — the soft parts being retracted well above and below their limits. (2) Subperiosteally excise about 9 cm. (about 3^ inches) of each rib, in the usual manner (see the Subperiosteal Excision of the Ribs, page 447) — carefully guarding the parietal pleura from the slightest nicking or injury (Fig. 350). (3) Incise the intercostal tissues longitudinally in the center of the interspace between the two excised ribs. If necessary, the intercostal arteries of the excised ribs may be ligated at both ends, though this may be omitted generally, as they are usually not in the way unless it be indicated to carry an incision across their course. Preserve the intercostal nerves by retraction. The re- moval of these two ribs generally gives ample room for exposure when the upper and lower limits of the wound are well retracted. (4) Five methods of reaching the diaphragm are now open to the operator; (a) If the site of operation be below the level of the reflected pleura, where the diaphragm and chest-wall are in contact, the diaphragm may be approached at once, — (b) If the pleura be encountered as soon as the chest-cavity is opened, its parietal layer should be most carefully detached with the fingers and by means of blunt dissection and peeled back from its connection with the endo- thoracic fascia and surface of the diaphragm — peeling it backward with the tips of the fingers and constantly pushing it from the freed area with the back of the fingers — continue this freeing back of the unopened pleura until the site of the diaphragmatic operation is reached — and then hold the pleura in place by gauze packing (Fig. 560). (c) If both surfaces of the pleura are found adherent, thus shutting off the general pleural cavity, the incision may be carried directly down to the diaphragmatic site without danger of entering the pleural cavity (unless the adhesions be pulled apart in the manipulations), — (d) If the two pleural surfaces are not adherent, and it be impracticable to detach the pleura as described under (1)), the two pleurae may be united by suture around an area sufficiently large to admit of operating within and thus reaching the diaphragm at once, (e) If the two pleural layers be found not in contact by adhesion, and cannot be separated and displaced upward as mentioned under (b), and if time be to spare, adhesion between the two surfaces may be brought about by gauze packing, with the accomplishment of the rest of the operation two or three days later, when the cavity will have been closed off by adhesions. Where it is possible to choose the route, it is better to approach the diaphragm either below the level of the pleural reflection — or to detach the unopened pleura and reach the diaphragm beneath the pleural cavity. (5) The surface of the diaphragm having been exposed, the special object of the operation is now accomplished — the abscess incised — the wounded diaphragm sutured — or the hernial opening closed — upon the same principles practised elsewhere. Owing to the constant move- ment of the diaphragm, it is somewhat more difficult to deal with its struc- ture. An abscess cavity should be evacuated by the most direct route, especially guarding the pleural cavity from infection. If a newly made wound exist, it is sutured at once. If the wound be old, or the opening be a hernia, the edges are seized with toothed forceps to steady them and then freshened with curved blunt scissors — the moving lung being held out of the way, if necessary, by gauze packing — and with a fully curved needle, held in special needle-holder, the margins of the wound or opening are brought together with chromic gut sutures. (6) The pleural sac, previously held SURGICAL ANATOMY OF THE PLEUR.l.. 759 out of the way by packing, is now allowed to fall into place. Temporary drainage is established, if indicated, through an unsutured part of the ex- ternal wound — the remaining portion of the outer wound being closed. Comment. — (a) If the pleura be nicked, ligate or suture it at once, (b) If necessary to gain more room, free back the soft parts and excise the same amount of the rib above or below — especially is this the case when it is needed to reach the diaphragm nearer its dome, (c) A U-shaped flap, with base forward or backward, may be used to expose the ribs, (d) On the left side all calculations are made somewhat lower. VIII. THE PLEURA. SURGICAL ANATOMY. Relations. — (1) Pleura costalic (Parietal Layer of Pleura); beginning at sternum, pleura lines thoracic cavity, covering inner aspect of costal car- tilages, ribs, intercostal muscles — passing, posteriorly, over heads of ribs, thoracic ganglia and branches, lateral surfaces of bodies of dorsal vertebra? — thence to side of pericardium, which it partially covers — thence to root of lung, where it becomes pleura pulmonis. (2) Pleura pulmonis (Visceral Layer of Pleura); beginning at root of lung, pleura passes around posterior border, over convex outer aspect, from base to summit — over sides of fissures between lobes — around its anterior border — on to anterior aspect of root — thence upon pericardium to inner aspect of sternum. (3) Pleura cervicalis; apex of pleura closely covers apex of lung, projecting, with it, from 1.3 to 4.5 cm. (about h to if inches) above the first rib — but not above level of neck of first rib. Subclavian artery arches over it, grooving its internal and anterior aspect just below its apex. Scalenus anticus and medius muscles are in contact with it externally. (4) Pleura diaphragmatis ; covers superior surface of diaphragm, except narrow interval along its circumference, which is in contact with costal parietes. (5) Pleura mediastinalis ; forms lateral boundaries of mediastina. Relations of Margins of Pleura? to Chest-wall. — (1) Anterior mar- gin ; extending from apex of lung, passes from sterno-clavicular articulation downward and inward, meeting opposite pleura at upper border of sternum — thence both pleura? descend in contact to upper margin of fifth costal cartilages, whence they diverge. Right Pleura continues nearly vertically downward to lower end of gladiolus, thence turns outward. Left Pleura diverges from median line at upper margin of fifth costal cartilage, so as to be 1.5 cm. (about § inch) to outer side of left border of sternum at level of sternal end of fifth costal cartilage — 2 cm. (about |f inch) at level of sternal end of sixth — 3.5 cm. (about if inches) at level of sternal end of seventh (Luschka). In many cases this deviation of left pleura is not so marked, the margin lying much nearer the median line. (2) Lower margin; reflected on to diaphragm along line extending from lower end of sternum outward behind seventh costal cartilage nearly to sternal end of rib. (Melsome says this margin follows lower border of sixth costal cartilage on left side.) The lower border of the pleura corresponds in height with the following structures at the following points: — In the Nipple line, with eighth rib, — In Mid-axillary line, with tenth rib on left, and ninth rib on right, — In Posterior Scapular line (vertical line from tip of inferior angle of scapula), with twelfth rib, — At Spine, with vertebral end of twelfth rib; sometimes with transverse process of first lumbar vertebra. The lower margin of the lung will correspond with a point two ribs higher in each case. 760 OPERATIONS UPON THE THORAX. Attachments of Pleurae. — (i) Ligamentum latum pulmonis, passes from lower portion of posterior part of root of lung to diaphragm — formed by two layers of pleura? continuous above with the layers in front and behind root of lung. (2) Expansion of fascia covering and strengthening apex, and extending across from posterior border of first rib to anterior border of trans- verse process of seventh cervical vertebra — and further strengthened by few fibers of scalenus anticus. (3) Interpleural Ligament, passing between two pleura? behind esophagus and in front of aorta. Supplemental or Complemental Pleural Spaces. — These spaces are situations where two portions of parietal pleura? are in contact, even during forcible inspiration — (1) Between Chest-wall and Diaphragm (Costo-phrenic sinus), where costal pleura is reflected on to diaphragm, best marked poste- riorly, where costal and diaphragmatic parts of pleura? are in contact from about tenth to twelfth ribs, — (2) Between Chest-wall and Pericardium on left, opposite lower portion of gladiolus. Arteries. — From intercostal, internal mammary, musculophrenic, thymic, pericardiac, bronchial. Veins. — Correspond with arteries. Nerves. — From phrenic and sympathetic. SURFACE FORM AND LANDMARKS. The interval between the two pleura? is considerable above and below, but opposite the gladiolus (second, third, and fourth costal cartilages) they are more nearly approximated, or are in contact. The anterior margins of the two pleura? are more nearly parallel and in a vertical line than the corresponding margins of the lungs, that is, the left anterior pleural margin extends further over the pericardium than does the lung. The right pleura is shorter and wider than the left (owing to the liver), though it reaches slightly higher in the neck. There is a tendency for the left pleura to extend lower down than the right — most markedly upon the lateral aspect of the chest-wall — somewhat so upon the anterior aspect — and even slightly so behind. In some cases the pleura has extended into the abdomen, beneath the ligamentum arcuatum externum, and uncovered by diaphragm at this site. The outer surface of the pleura is firmly adherent to the surface of the lung, to the pulmonary vessels emerging from the pericardium, to the upper surface of the diaphragm, and to the triangularis sterni — elsewhere it is less firmly adherent. If the twelfth rib be well developed and full length, the pleura is generally in contact with only its inner half. If the twelfth rib be very short, the pleura may be in contact with all of its anterior surface — and the pleura may extend to the transverse process of the first lumbar vertebra. The outer margin of the erector spina? muscle cuts the twelfth rib about its middle. Where the twelfth rib is present and extends beyond the outer border of the erector spina?, the lower border of that portion of the rib ex- ternal to the border of the muscle can be cut upon with reasonable certainty of not opening the pleura. Where the twelfth rib is absent or short, the above is not available. Never take for granted that the last rib is the twelfth rib — always count from the first rib. If the twelfth were absent and one were to cut down INTERCOSTAL THORACOTOMY. 761 upon the eleventh (mistaking it for the twelfth), the pleura would almost certainly be opened. Where the twelfth rib is absent or short, one may cut to within 2.5 cm. (about 1 inch) of the apex of the angle formed by the outer margin of the erector spinas and the lower border of that portion of the eleventh rib pro- jecting to the outer side of the muscle — that is, one should not cut higher than the position the twelfth rib would occupy if present (Melsome). PARACENTESIS THORACIS. Description. — Paracentesis thoracis (thoracentesis, or pleuracentesis) consists in the penetration of the pleural cavity by means of a hollow needle or cannula, for the purpose of exploratory aspiration or the evacuation of fluid. Sites usually Selected for Thoracentesis. — Sixth (or seventh) inter- costal space in the mid-axillary line; eighth (or ninth, especially on left) intercostal space in the posterior scapular line. Position. — Patient supine at edge of table for lateral punctures — and rolled slightly forward for posterior punctures — with arm of affected side elevated above head (to widen intercostal spaces, and draw skin upward, which will subsequently come back into place valve-like over the opening). For simple puncture, if patient can sit upright in a chair, this position will better enable fluid to gravitate downward. Landmarks. — Sixth (or seventh) intercostal space in the mid-axillary line — or the eighth (or ninth) space in the line of the inferior angle of the scapula. The posterior puncture secures better drainage. (See Figs. 563, C, and 558, B.) Operation. — Having cocainized the part, grasp a needle, or cannula and trocar, so as to control its progress and limit the depth of the puncture — and having displaced the skin upward with the left thumb and forefinger, so as subsequently to form a valve — the point is entered nearer the upper than the lower border of the ribs limiting the special interspace (in order to escape the more important lower intercostal artery, while also missing the upper one) — and is made to pass inward and upward (so as to avoid wound- ing the lung and diaphragm) — passing through skin, fascia, thoracic muscles, intercostal muscles, endothoracic fascia, and parietal layer of pleura — its entrance into the free pleural cavity being recognized by the sensation imparted to the finger guarding its onward progress. When the needle, or cannula point, is felt to be within the pleural cavity, the contents are slowly withdrawn, the opening being subsequently sealed with sterilized cotton and collodion. Comment. — Puncture may be made wherever physical signs indicate fluid within the area of the pleura — but the above sites are the most usual. The puncture may be preceded by a limited incision of the skin alone — or, if difficulty occur, the incision may extend down to the intercostal muscles. To avoid the intercostal arteries, the puncture should not be made posteriorly to the angle of the ribs. INTERCOSTAL THORACOTOMY. Description. — Intercostal thoracotomy, or pleurotomy, consists in the exposure and incision of the pleura in an intercostal space for the evacuation of fluid. A simpler though generally less satisfactory operation than thora- 762 OPERATIONS UPON THE THORAX. cotomy through the partial excision of a rib, though often sufficient in minor cases. Sites Usually Selected for Intercostal Thoracotomy. — In the sixth (or seventh) intercostal space in the mid-axillary line; in the eighth (or ninth, especially on the left) intercostal space in the posterior scapular line — i. e., in the same sites as for paracentesis, avoiding a position in which the dia- phragm or scapula would interfere with free drainage. Position. — As for paracentesis thoracis — except that here the opening must not be valulvar, but, on the contrary, it is planned that the cutaneous and pleural openings are opposite. Fig. 561. — Operations for the Exposure of the Pleura: — A, Incision for intercostal pleurotomv; B, Intercostal incision for the partial excision of two adjacent ribs; C, Incision over a rib for either the partial excision of one rib or of three ribs (the one beneath the incision and those immediately above and below). (Thorax modified from Spalteholz.) Landmarks. — As for paracentesis thoracis. Incision. — Midway between the two ribs, in the long axis of the inter- costal space — extending about 5 cm. (about 2 inches) in a thin chest-wall, and about 7.5 cm. (about 3 inches) in a thick chest-wall — the center of the incision being, as above indicated, generally in the mid-axillary line for the sixth intercostal space, and in the posterior scapular line for the eighth inter- space. (Fig. 561, A.) Operation. — (1) Incise through skin, fascia, external thoracic muscles (serratus magnus in sixth space; chiefly the latissimus dorsi in eighth space), THORACOTOMY BY PARTIAL EXCISION OF RIBS. 763 and intercostal muscles down to the endothoracic fascia. Clamp and ligate all bleeding vessels encountered — the incision lying between the upper and lower intercostal arteries and not generally involving them. Retract the soft parts upward and downward, including the ribs bounding the space — and the parietal pleura is exposed. (2) The tense pleura is then deliberately incised in the axis of the intercostal space (not by stabbing) — preceded, if necessary, by an exploratory puncture — the opening being increased, if indicated, upon a grooved director, or with blunt scissors or blunt bistoury — and the fluid evacuated. (3) Drainage is then established by some form of not easily collapsible drain (to withstand the tendency of the adjacent ribs to narrow the opening). The ends of the external wound are sutured, leaving room for the exit of the drain. Comment. — Where the incision can be made to the outer margin of the latissimus dorsi, lesser thickness of muscle presents. THORACOTOMY BY PARTIAL EXCISION OF ONE OR MORE RIBS. Description. — Exposure and incision of pleura through a thoracic open- ing made by the excision of parts of one or two (or more) ribs. Generally resorted to for the evacuation of intrapleural fluids where a larger opening is required than furnished by an intercostal thoracotomv. Part of one rib alone is generally excised — where more room is required part of the rib above or below, or both, may be excised. From 2.5 to 5 cm. (about 1 to 2 inches) of bone are ordinarily removed — and more if necessary. Sites usually Selected for the Excision of Ribs. — Wherever a collec- tion of fluid is indicated by physical signs (that is, determined by the physical signs of localized collection) — where the collection is a localized one. Where the fluid is in the free pleural cavity, the site generally chosen is the sixth or seventh rib in the mid-axillary line — or the eighth or ninth rib just external to the posterior scapular line — the latter situation usually being preferable. (Kocher gives the sixth rib in the mammary line — the ninth rib on the right, and the tenth on the left, in the lateral line — and the twelfth on both sides posteriorly in the scapular line.) But the position should be so chosen that the drainage will not be interfered with by either diaphragm or scapula in the functioning of these structures. Position. — As for Intercostal Thoracotomv (page 761). Operation by Partial Excision of One Rib. — (1) An incision of about 8 cm. (about 3 inches) is made directly over the center of the chosen rib, passing through skin, fascia, overlying muscles, and periosteum. (See Fig. 561, C, and 562.) (2) The rib is then freed subperiosteal^ for nearly 5 cm. (about 2 inches), carefully avoiding injury to the intercostal vessels and pleura — which are in safety as long as the operation is subperiosteal. About 2.5 to 4 cm. (about 1 to 1 \ inches) is now removed with a Gigli saw, as in the ordinary partial excision of a rib. (3) The intercostal vessels are then easily isolated in the bed of the rib, and are treated according to circumstances — they may be tied at both ends of the wound and divided, where they are likely to be injured — or they may be left intact, the incision into the pleura being made between and parallel with the upper and lower intercostal vessels. (4) An incision of about 2.5 to 4 cm. (about 1 to ij inches) is now carefully made through the center of the periosteal bed and in the axis of the former rib, passing through the costal periosteum, endothoracic fascia, and parietal pleura into the pleural cavity — and drainage thus established — the drain 764 OPERATIONS UPON THE THORAX. used being so placed and of such a nature as not to impinge upon the lungs during respiration. Operation by Partial Excision of Two or More Ribs. — (1) If it be found, after excising part of one rib, that it is desirable to excise part of the rib above or below, or both, add two vertical incisions to the horizontal one, extending from the ends of the former horizontal incision upward to the upper border of the rib above — or two vertical incisions extending downward Fig. 562. — Thoracotomy by Partial Excision of a Rib: — A, Thoracic muscles divided down to rib, directly over its center; B, Periosteum raised and turned back, in the subperiosteal exposure of the rib ; C, Transverse section of rib, indicating; portion of rib removed by means of a Gigli or chain saw conducted between rib and periosteum ; D, Knife incising through periosteal bed and endotho- racic fascia into pleural cavity. to the lower border of the rib below — or both. A flap of overlying soft parts may thus be turned upward or downward, or in both directions, exposing the two or three ribs — which are then partially excised just as a single rib in the above operation. (2) Where it is wished, from the first, to excise parts of two ribs — make an incision of about 10 cm. (about 4 inches) midway between the two ribs — passing through skin, fascia, and overlying muscles, down to the level of the outer surface of the ribs and intercostal muscles — then retract the upper lip of the wound upward until the upper rib is well exposed — and the lower lip downward until the lower rib is similarly exposed — incising muscle tissue, or separating by blunt dissection, in the approach toward the upper border of the rib below and the lower border of the rib above, maintaining an even thickness of soft covering everywhere. The ribs thus exposed are partially resected as in the single rib operation. (See Figs. 561, B, 560, and 562.) (3) Where it is wished to excise parts of three ribs from the first, make an incision in the long axis of the middle one of the three ribs — join this by a vertical incision at either end of the transverse incision, from the upper border of the rib above to the lower border of the rib below (making an H -shaped incision) — and turn one flap upward and the other downward (as explained in (1) above). Parts of three ribs are then PARTIAL PLEURECTOMY ESTLANDER'S OPERATION. 765 excised — the intercostal arteries are ligated at both ends — the nerves are retracted — and an incision made vertically in the center of the area. At the end of the operation, the external wound is clcsed along the lines of incision, except that drainage is provided for through an unsutured part of the wound. (4) Where more than part of a single rib is excised, the soft parts which intervene between the beds of the excised ribs, and includ- ing the beds, are carefully incised in a vertical direction, down to the endothoracic fascia — and the pleura is then incised in the same direction. Prior to this, the intercostal vessels corresponding to each rib are ligated at either end of the original wound, so that when divided in their center no bleeding of any consequence occurs. The nerves are drawn out of their beds and retracted upward and downward, out of the way, if possible. Comment. — Parts of three ribs may be excised by a single incision (about 15 cm., or 6 inches, long), made over the central rib, followed by good retraction. After making a thoracic opening at the chosen site, lower openings, or counter-openings, for better drainage, can be made by cutting down upon a curved sound introduced through the original opening and directed to a lower part of the cavity PARTIAL PLEURECTOMY. ESTLANDER'S THORACOPLASTIC OPERATION. Description — This operation, suggested by Warren Stone, and estab- lished by Estlaender, consists, as now practised, in the subperiosteal excision of parts of several contiguous ribs over a pleural cavity, together with the removal of their periosteum, the intercostal tissues, endothoracic fascia, and the parietal pleura — thereby allowing the corresponding soft thoracic wall to sink in and obliterate the abnormal cavity by the approximation and union of this thoracic wall of integumentary and muscular tissues to the visceral pleura, which has been freshened by curettage. The number of ribs which are partially excised, and the amount of each rib removed, will depend upon the position and extent of the involved area, as determined by the physical signs before operation; or by probing, or by the amount of fluid contained, after opening the cavity — and usually corresponds with that area. From the second to the ninth ribs, inclusive, have been excised — but generally from the second to the seventh, inclusive, are the ones taken. From the costal cartilages to the tubercles, in amount, has been resected — but the average is from about 13 to 15 cm. (about 5 to 6 inches)— the amount being greatest where the cavity is widest, and vice versa. The operation is appli- cable to long-standing cases of empyaema which have resisted drainage, and in which the lung no longer expands and the pleura is much thickened. Originally Estlaender did not remove the costal periosteum and intercostal tissues, nor the parietal pleura. The pleural surfaces were allowed to fall into contact if possible. The pleura was not opened, other than for the drainage which may have been previously resorted to — but the external wall, with its parietal pleura, minus ribs, was merely allowed to come into contact with the visceral pleura. Now both the costal periosteum is excised (to pre- vent regrowth of bone), together with the intercostal muscles and fascia, and the parietal pleura and endothoracic fascia removed, and even the visceral pleura scraped (to destroy pyogenic membrane and to approximate fresh sur- faces for union) — and the outer wall held in contact with the visceral pleura by dressings, as far as possible. 766 OPERATIONS UPON THE THORAX. Preparation. — The thoracic wall is shaved, where necessary. Position. — Patient is so placed as to best expose the special site involved, generally resting upon one side — surgeon usually stands in front in operating upon the left side, and behind in operating upon the right side — assistant stands opposite surgeon. Landmarks. — Outline of the empya'mic cavity to be obliterated, as determined by physical signs; normal limits of lung and pleura; relation of important adjacent organs. Incision. — Supposing that parts of the second to seventh ribs, inclusive, are to be removed, from the right antero-lateral aspect of the chest-wall — say 8 cm. (about 3 inches) of second rib — 10 cm. (about 4 inches) of third — 13 Fig. 563. — Operations upon the Pleural Cavity: — C, Incision for Estlander's thor- acoplasty (removing, in this case, parts of third to eighth ribs, inclusive, through three in- tercostal incisions); A, Schede's thoracoplasty (removing nearly all of the second to ninth ribs, inclusive); D, Position for paracentesis thoracis in the sixth intercostal space, in the mid- axillary line. (Thorax modified from Spalteholz.) cm. (about 5 inches) of fourth — 15 cm. (about 6 inches) of fifth — 18 cm. (about 7 inches) of sixth, and 20 cm. (about 8 inches) of seventh — then transverse incisions somewhat longer than the length of the part of the rib to be removed (to allow for sufficient retraction of soft parts to get at the required length of rib) are made in the center of the long axis of each alternate inter- space, as follows — between the second and third ribs, for removal of those ribs — between the fourth and fifth ribs, for the removal of those ribs — between the sixth and seventh ribs, for the removal of those. If an uneven number of ribs were to be removed, three of them could be removed through an PARTIAL PLEURECTOMY — ESTLANDER'S OPERATION. 767 incision placed over the central one of the three. The greatest length will be removed from that rib which spans the greatest width of cavity, whether at the middle or either end — and narrower lengths toward the tapering or narrowing aspects of the cavity. An equal length of each rib is sometimes removed. (See Fig. 563, A, where a kite-shaped excision is shown.) Operation. — (i) Incise through skin, fascia, and overlving thoracic muscles, until down to the external intercostal muscles (on a level with the ribs). Tie all bleeding vessels. Retract upper lip of wound, in its full thickness, upward, exposing the rib above — cutting, where necessary, muscular fibers close to the level of the external intercostal muscles and external aspect of the rib (so as to keep as thick a flap of soft parts as possible). The lower lip of the wound is similarly retracted, exposing the lower rib. (2) The upper and lower ribs are now excised subperiosteally to the requisite extent. (3) The above steps are repeated for the second and third pairs of ribs. (4) The intercostal vessels are now tied at both ends of each intercostal bed. (5) There are now three long incisions, and two bridge-like strips of external soft parts, composed of skin, fascia, and outer thoracic muscles. These bridgedike parts are carefully preserved. Beneath these lie a deeper con- tinuous layer of soft parts composed of costal periosteum (beds of ribs), external and internal intercostal muscles, endothoracic fascia, and parietal pleura (the last often very much thickened) — all forming the outer wall of the empyaemic cavity. Having retracted upward (/". e., outward), out of the way, the above-described bridge-like strips of soft parts, this deeper layer of soft parts just mentioned is all cut away with scissors — well within the ligated intercostal arteries, on either side — and along the highest and lowest inter- costal space of the involved and freed area. (6) The visceral pleura, espe- cially if much thickened, is advantageously curetted. (7) The three original incisions are now sutured throughout, except a part of the lowest is left open for drainage, where drainage is instituted. The new outer wall of soft thoracic tissues is now allowed to come into contact with the freshened visceral pleura — and is held in contact by dressings as far as possible, to promote union and obliteration of the cavity. Comment. — Considerable hemorrhage occurs throughout the operation. which is controlled by clamp, ligature, pressure, and hot solution. There is not, as now practised, as distinct a difference between Est- laender's and Schede's operations of Thoracoplasty as formerly — modern operators using the good features of both in each. The second rib is left where possible. The external soft parts may be raised as one flap (as Schede does) — or as several smaller flaps (as Tacobson advises) — or the necessary amount of ribs over a small cavity may be exposed by a vertical incision over the desig- nated ribs, followed by firm retraction (as Pearce Gould suggests). A cavity wider than long requires the excision of more of fewer ribs — a cavity longer than wide requiring the excision of less of more ribs. Where the cavity involves the posterior part of the upper ribs (those behind the scapula), their anterior ends may be severed in the usual way — the posterior ends being severed from the interior of the chest with stout, curved cutting-pliers — after freeing the rib of soft parts. 768 OPERATIONS UPON THE THORAX. PARTIAL PLEURECTOMY. schede's tiioracoplastic operation. Description. — This operation, more extensive than Estlaender's, differs in detail from the latter, while being conducted upon the same general prin- ciple, and in the same general type of cases. A large U-shaped flap is raised, corresponding in extent to the underlying cavity (sometimes to nearly the entire pleural cavity) and consisting of all the soft parts overlying the ribs. The ribs, intercostal tissues, endothoracic fascia, and parietal pleura outlined by this incision are then excised en masse — the visceral pleura scraped — and the external flap allowed to fall into contact with the freshened pleura, being sutured back in place and held in contact with the visceral pleura by the dressings — opening for drainage being left. Generally resorted to in old empyasmic cases of the worst type, especially where the pleura' are very much thickened, and which have resisted all other measures, and represents the most radical operation of its kind available, consisting, practically, of the removal of nearly the entire chest-wall of one side beneath the plane of the thoracic muscles. The number of ribs removed is determined by the vertical extent of the cavity, but is generally from the second to the ninth inclusive. The amount of each rib removed is likewise determined by the width of the cavity, but is often from the costal cartilages to the tubercles of the ribs. Preparation — Position. — As for Estlaender's Thoracoplasty (page 765). Landmarks. — Where adapted to a localized cavity, the outline of that cavity and the position of important adjacent structures will determine the landmarks. Where the maximum removal of the thoracic wall is indicated, that amount of each rib (from and including the second downward) which is in contact with the pleural cavity — in the average case, from the second to the ninth, inclusive, and from the costal cartilage to the tubercle. This latter extent will be understood in the following operation. Incision. — Begins anteriorly at the upper border of the second costo- chondral articulation (about 2.5 cm., or 1 inch, from the sternal border) — passes downward following the curve of the ehondro-costal articulations slightly outward (the cartilages increasing in length as they descend) to the eighth rib in the nipple-line — to the ninth rib in the mid-axillary line on the right side (the tenth on the left) — thence transversely backward to the poste- rior scapular line — thence upward along a line midway between the vertebral border of the scapula and the spinous processes of the vertebrae, to the second rib. (Some surgeons begin the incision at the outer border of the pectoralis major, above the level of the fourth rib — and retract from this point upward to expose the third and second ribs.) (See Fig. 563, A.) Operation. — (1) Incise down to and upon the ribs and intercostal muscles throughout the line of incision — bearing lightly over the intercostal spaces to avoid penetrating the thorax. (2) This entire flap of overlying soft parts is dissected en masse from the bony and intercostal muscular wall of the thorax, hugging the ribs and intercostal muscles closely (so that the extensive flap may be as thick and well nourished as possible). The scapula, with the subscapularis muscle, are drawn upward and away from the trunk so as to give access to the upper ribs and to enable the anterior part of the upper ribs, especially where the incision only extends upward anteriorly to the fourth, to be freed. (3) The ribs are now to be divided in front and behind, about 1.5 cm. (about ^ inch) within the line of division of the soft parts (so that the cicatrix will not fall directly over the line of the ends of the divided ribs). This division is best accomplished in the following way, devised by PARTIAL PLEURECTOMY SCHEDE'S OPERATION. 769 Hartley, — Where each rib is to be divided, anteriorly and posteriorly, the periosteum is divided over the center of the rib, midway between upper and lower borders, by an incision about 4 cm. (about 1^ inches) long, with the center of the incision at the point where each section of rib is to be made. To this more or less horizontal incision, at the two ends of the ribs, add a vertical incision through the periosteum, beginning at the center of the hori- zontal incision, or at both of its ends, and ending at the lower border of the rib. \Yith a curved periosteal elevator, free the lower half of anterior and posterior ends of the ribs where the sections are to be made, for the extent of about 1.5 cm. (about \ inch) — especially freeing the intercostal groove with the intercostal vessels. Complete this process of freeing at each end of each rib before proceeding to the next step. Now grasp the lower half of each rib, where cleared of periosteum, with rongeur forceps, inserting the lower lip of the rongeur forceps, between bone and periosteum, and bite out a half-button of bone (Oi), which will include the subcostal groove, and the removal of which will well expose the intercostal vessels. Complete this half-button excision at the inner and outer ends of each rib before proceeding further in the operation. (4) The intercostal vessels are all now ligated at both ends of the exposed part of each rib, being easily accomplished by passing a curved needle armed with chromic catgut, beneath them as they lie fully exposed — plainly in view, or very accessible in their beds, or are made accessible by a very little dissection. The arteries and veins should be picked up separately or together — but especial care should be exercised not to include the intercostal nerves. The vessels thus tied are the inferior intercostal vessels. The upper intercostal vessels are generally much smaller and may usually be taken up with clamp forceps and tied as divided in the osseo-periosteo-muscular nap. If con- sidered necessary, the superior intercostal vessels may be exposed in the same manner as the lower ones, by biting out part of the upper border of the rib with rongeur forceps. (5) The ribs may now be freely divided at both ends by passing a Gigli saw between periosteum and bone — the saw-carrier easily passing between the rib and the separated part of the pericsteum which had been freed in excising the half-buttons of bone, and for the balance of the way from the end of the separated area up to the upper border of the bone, hugging the rib closely on its inner aspect and emerging between the upper border of the rib and the position of the superior intercostal vessels. Both ends of all the ribs are thus divided. (6) Nothing now remains but to divide with blunt-pointed scissors the intercostal tissues in the line of the severed ribs on both sides, along the upper border of the second rib above, and along the lower border of the ninth rib below — thus removing the entire lot of ribs, intercostal tissues, endothoracic fascia, and parietal pleura en masse in a single sheet. (7) The thickened visceral pleura covering the remnant of contracted lung is thoroughly scraped and as much adventitious tissue removed as possible. (8) The flap of skin, fascia, and muscles is now allowed to fall into contact with the freshened visceral pleura — its margin being sutured to the margin of the thoracic opening, except a dependent opening left for drainage. The region is so dressed as to keep the flap in contact with the freshened visceral pleura and aid in early union of the surfaces and obliteration of the cavity — the arm being bound to the side. In this step of closing the wound, all divided thoracic muscles along the line of incision are quilted together by means of a buried row of chromic gut sutures, before placing the final tier of sutures. Comment. — (1) After the flap of soft parts has been turned back each 49 770 OPERATIONS UPON THE THORAX. rib may be excised subperiosteally and then the intercostal tissues cut away, as in Estlaender's operation — but much more time is consumed. (2) While removing the deeper flap composed of ribs, intercostal muscles, endothoracic fascia, and parietal pleura, a sound or a finger within the cavity should guide the scissors along the contour of the portion being excised. (3) The second rib is left where possible. (4) The scapula is displaced forward during the posterior incision. (5) The upper ribs may be removed from within the cavity, after division at both ends, as explained in Estlander's operation. TOTAL PLEURECTOMY. fowler's thoracoplastic operation. Description. — The operation consists in the removal of the entire pleura of one side. It is indicated in those cases where the lung does not expand but is bound down by firm, dense adhesions — and where Estlander's operation has Fig. 564. — Operations upon the Pleura: — A, Incision for Fowler's total pleurectomy; B, Incisions for one of the methods of exposure in Ransohoff 's discission of the pleura. (Tho- rax modified from Bardeleben, Haeckel, and Frohse.) failed to accomplish relief. There is less destruction of rib structure than in Schede's operation. The operation is sometimes called decortication of the lung. Preparation — Position. — As in Estlander's operation, page 765. Landmarks. — A pre-existing sinus, or the recognized site of a pyothorax. Incision. — In those cases where a previous sinus exists, this is incised along OTHER OPERATIONS UPON THE PLEUR.E. 77 1 the intercostal space corresponding with its position, anteriorly and posteriorly, to the extent of about 20 to 22.5 cm. (8 to 9 inches) . At the posterior extremity of this incision another incision is made vertically downward to the extent of two ribs — and similarly at the anterior extremity of the horizontal incision another incision is made vertically upward to the extent of two ribs (Fig. 564, A). Where no sinus exists, the horizontal incision is made in an inter- costal space with its center over the center of the pyothorax. Operation. — Two triangular flaps are outlined by the above incisions. The anterior flap (consisting of all the soft parts down to the ribs) is reflected upward and forward. The posterior flap is reflected downward and back- ward. In this way four ribs are exposed. About 20 cm. (8 inches) of each of these ribs is excised. The cavity is then entered — and by blunt dissection and "peeling" the entire pleura is removed — beginning with the parietal and end- ing with the visceral layer. By carefully incising across the visceral pleura that layer may be removed with les>& danger to the lung — which partially expands as it is released. At the end of the operation the flaps of soft part> arc turned into position and sutured. Provision is made for drainage, if indicated — otherwise, not. DISCISSION OF PLEURA IN CHRONIC EMPYEMA. ransohoff's operation. Description. — Having exposed the contracted and bound-down lung, the thickened overlying visceral pleura is "gridironed with many parallel incisions removed from each other about 6 mm. (j inch), and by others crossing these obliquely or at right angles. Little islands of thickened pleura are thus left on the surface of the expanding lung. But if the cuts have been made deep enough they shrivel in size, while the discission is still in process of being com- pleted." This technic is a modification of the operation of decortication. Preparation; — Position; — Landmarks. — As in the preceding operations upon the pleura. Incision. — An incision is made over the sinus, or cavity, with the partial excision of one or two ribs. Through this opening the extent of the involve- ment is determined. Operation. — As determined by the nature of the process and its extent, multiple subperiosteal rib excisions are made — either through several parallel incisions — (Fig. 564, B); through a Schede incision (Fig. 563, A); or through a trap-door incision (Fig. 565). Having gotten ample exposure, decortica- tion should be first tried, which is to be preferred if easily and satisfactorily accomplishable. If this is not readily accomplished, gridironing incisions, as described above, are made over the visceral pleura. If the lung does not satisfactorily expand following these incisions, an incision is carefully carried along the groove of reflexion of visceral and parietal pleura — the danger being less if this liberating incision is carried toward the chest-wall. Drainage is instituted where indicated — and the wound otherwise closed. Often several consecutive operations are necessary. OTHER OPERATIONS UPON THE PLEURA. See Operations upon the Lungs (pages 772 to 780) — and Operations upon the Liver (pages 1004 to 1021). 772 OPERATIONS UPON THE THORAX. IX. THE LUNGS. SURGICAL ANATOMY. Relations. — Apex; extends from 1.2 to 4.5 cm., averaging 2.5 (from \ to if inches, averaging 1), above level of first rib into the neck (but not extending higher than the neck of the first rib) — lying beneath subclavian artery, and behind interval between two heads of sternomastoid and inner end of clavicle — and covered by subclavian artery and scalenus anticus. Right apex may project slightly higher than left. Base; rests- upon convexity of diaphragm. External surface; chiefly corresponds to cavity of thoracic wall. Internal surface ; in contact with pericardium and lateral pleural wall of mediastina. Anterior border; overlaps anterior surface of pericardium on right, and partially so on left. Posterior border; fits into concavity on either side of vertebral column. Inferior border; fits into space between inferior ribs and costal attachment of diaphragm. Relations of Margins of Lungs to Chest-wall. — Anterior margins; extend from their apices (at an average point of 2.5 cm., or 1 inch, above the first rib, and nearer posterior than anterior border of sternomastoid) downward and inward across sternoclavicular articulation and manubrium sterni to near center of articulation of manubrium and gladiolus, where the two margins meet, or verv nearlv meet — thence both borders descend parallel to each other and just bevond the middle line (the right sometimes slightly overlapping it) to midway between the level of the articulations of the fourth costal cartilages with the sternum — from which point they diverge unequally. Right margin continues to descend almost vertically downward to sixth chondro-sternal articulation (sometimes to lower end of gladiolus), whence it curves downward and outward along that cartilage to sixth costo-chondral articulation. Left margin, from point of divergence, passes along lower border of fourth rib outward with a downward inclination, and then down- ward across fourth interspace and fifth rib with an outward inclination to apex of heart (a point 3.8 cm., or 1^ inches, below, and 2.5 cm., or 1 inch, to inner side of left male nipple in fifth interspace) — thence to sixth costo- chondral articulation. Lower margins; marked by a slightly curved line. with downward convexity, extending from sixth costo-chondral articulation to spinous process of tenth dorsal vertebra — crossing (while arms are elevated at right angle) the nipple-line at sixth rib — mid-axillary line (arms still raised) at eighth rib — scapular line (arms now lowered) at tenth rib. Lower margin of left lung starts on level with sixth costo-chondral joint, but much further out than right — about 7.5 cm. (3 inches) to left of median line in fifth inter- space. Sometimes lower margin of left lung may be one rib lower than right. Posterior margins ; marked by line from level of spinous process of seventh cervical vertebra, passing vertically downward on either side of spine, over the costo-vertebral articulations, to spinous process of tenth dorsal vertebra. Excursion of Lower Borders of Lungs in Forced Respiration. — Extend about 3.8 cm. (ij inches) below the line given above for the rela- tion of the lower margin, in deep inspiration — and rise above it in forced expiration. Relations of Fissures of Lungs to Chest-wall. — (1) Great or Lower Fissure of Right Lung: — draw line from fourth dorsal vertebra forward and downward around chest to intersection of anterior margin of lung and seventh rib. (2) Lesser or Upper Fissure of Right Lung: — draw line from point of intersection of preceding line with mid-axillary line, to fourth chondro- GENERAL SURGICAL CONSIDERATIONS. 773 sternal articulation. (3) Fissure of Left Lung: — draw line from third dorsal vertebra forward and downward around chest to intersection of anterior margin of lung with sixth costal cartilage. Structures of Roots of Lungs, and their Relations. — Structures of each root ; bronchial tube, pulmonary artery, pulmonary veins, bronchial artery (generally one on right and two on left), two bronchial veins, anterior pulmonary plexus of nerves, posterior pulmonary plexus of nerves, bronchial lymphatic glands, areolar tissue — all being enclosed within pleura. Rela- tions of right root : Anteriorly; right auricle, superior vena cava, ascending aorta, phrenic nerve, anterior pulmonary plexus. Superiorly; vena azygos major arching to join superior vena cava. Posteriorly; pneumogastric nerve, posterior pulmonary plexus. Inferiorly; ligamentum latum pulmonis. Relations of left root: Anteriorly; phrenic nerve, anterior pulmonary plexus. Superiorly; arch of aorta. Posteriorly; descending aorta, pneumo- gastric nerve, posterior pulmonary plexus. Inferiorly; ligamentum latum pulmonis. Order of structures of right root: From Before Backward; pulmonary veins, pulmonary artery, bronchus, and bronchial vessels. From Above Downward; bronchus, pulmonary artery, pulmonary veins. Order of structures of left root: From Before Backward; pulmonary veins, pulmonary artery, bronchus, and bronchial vessels. From Above Downward ; pulmonary artery, bronchus, pulmonary veins. Position of Hilum of Lung. — Upon inner aspect, slightly above middle, and much nearer posterior than anterior border — on level with bodies of fifth, sixth, seventh, and sometimes eighth dorsal vertebra?. Bifurcation of Trachea and Bronchi. — Trachea bifurcates opposite the spinous process of fourth dorsal vertebra — right bronchus passing nearlv horizontally outward and dividing into three chief bronchial tubes — left bronchus passing more directly downward and dividing into two chief bron- chial tubes. Arteries. — Pulmonary; bronchial. Veins. — Pulmonary; bronchial. Nerves. — From anterior and posterior pulmonary plexus, formed mainly by sympathetic and pneumogastric. Lymphatics. — End in bronchial glands. GENERAL SURGICAL CONSIDERATIONS. Collapse of the lung is one of the chief and most serious of the possible dangers in intra-pleural surgery. This possibility should be guarded against in all intra-thoracic operations in one of the following ways; — by the accurate suturing of parietal and visceral layers of the pleura together prior to incising the membrane, — the maintenance of artificial respiration by some such device as Matas' modification of the Fell-O'Dwyer instrument,— performance of the operation under negative atmospheric pressure (Sauerbruch's box),— or the carrying out of the operation under increased atmospheric pressure (Bauer's apparatus). The lung tissue is best divided by the thermocautery at red heat, especially vascular and comparatively normal portions. The tip of the finger may also be used. Indurated areas are best divided with a knife. 774 OPERATIONS UPON THE THORAX. PNEUMOTOMY THROUGH A CUTANEOMUSCULAR THORACOPLASTY FLAP. Description. — Incision of lung tissue through a temporary opening mad e in the chest-wall. This opening may be made in the form of an intercostal thoracotomy, — through the partial re- section of one or more ribs, — or through an osteothoracoplastic flap. In the present instance, a partial resection of three ribs will be made, after raising a thoracoplasty flap. Generally re- sorted to in cases of abscess, gangrene, hydatid cyst, and sometimes for bron- chial dilatation and tuberculous cavi- ties. The flap consists of soft parts only. Preparation. — Chest-wall is shaved where hairy growth exists. Position. — Patient so placed as to render site of operation accessible during exposure of lung — but placed so as to render site dependent before cutting into lung tissue (that fluid may not flow into bronchial tubes opened by incision, in addition to that which may be drawn into them). Surgeon on side of operation — assistant on same side, or opposite. Landmarks. — Determined by phy- sical signs locating disease, and gener- ally verified by preliminary explora- tion; known position of important structures. Incision. — A U-shaped flap is out- lined, with base upward and convexity downward, or vice versa — usually ex- tending over two or three ribs, and of sufficient size to well include the incision into the lung with room for manipulation (Fig. 565, A and C). (Vitality of flap would be better assured if base were forward or backward and Fig. 565.— Incisions for Pneumotomy convexity in opposite direction. (Fig. or Pneumectomy, by means of Cutaneo- $6"] , A and C.) Operation. — (1) This U-shaped flap of all the soft parts down to the ribs and intercostal muscles is raised. (2) Having controlled hemorrhage, the necessary parts of the indicated ribs are excised subperiosteally — calculating that the line of division of the ribs will fall about 1 cm. (nearly \ inch) within the line of flap-incision (that cicatrix of latter may not fall over ends of ribs). (3) An exploratory needle may now be introduced through the periosteal MUSCULAR OR CUTANEO-MUSCULO-OSSEOUS Flaps: — A, Trap-door flap involving two ribs, hinging upward; C, One involving three ribs, hinging downward. The continuous line re- presents the skin incision — the broken lines, the rib sections. (Figure redrawn from Deaver.) PXKUMOTOMV. 775 bed of a rib, thus avoiding the intercostal vessels— and the needle may be left in situ as a guide. (4) An incision is now carefulh made in the long axis of a space, or, preferably, in the bed of a rib, avoiding intercostal vessels, —if in a space, passing through intercostal muscles and endothoracic fascia. In the transverse incisions sufficient room can usually be gotten by upward and downward retraction of the soft parts, without requiring the division of the vessels. If it be elected to make a vertical opening, after removing the ribs, then the intercostal vessels are ligated at both ends of the exposed beds of the excised ribs— so that when the vertical incision is made in the center of the exposed area, little or no hemorrhage will occur. This vertical incision is in the center of the area from which the ribs have been partially excised, Fig. 566. — Exposure of Pleura and Lung by means of a Cutaxeo-muscular Flap: — A flap of skin, fascia, and muscles has been turned back. The sites of excised portions of ribs are shown. The parietal and visceral pleura? are stitched together by a continuous suture ellipticallv around the position of the future incision into the lung. An incision has been carried into the lung substance. and extends between the intact ribs above and below. In any event, the incision should be made, if possible, down to, but not directly through, the parietal pleura, at this stage. (5) Here one of two conditions will be found: — (A) The parietal and visceral pleurae may be adherent — the general pleural cavity will then be walled off, and the incision may be made directly into the lung tissue — having determined its depth by exploratory puncture. (B) Parietal and visceral pleura? may be non-adherent; (a) If it be necessary to proceed with the operation at once, suture the two surfaces of the pleurae together with catgut, in a sufficiently large circle — thus closing off the general pleural cavity by suture and by packing the outer circumference of the circle with gauze (Fig. 566) . The incision may be then made at once into the lung through the above circle, (b) If no need of haste exist, pack the wound with 776 OPERATIONS UPON THE THORAX. gauze a little firmly, so that the pleural surfaces are held in contact — and in two or three days the surfaces will be united for some distance around, and incision into lung tissue may be made through the united surfaces, without fear of invading the general pleural cavity. This adhesion is made more certain and firmer by also suturing the pleura? in a circular manner at the time of the exposure. (6) Incision into the lung is usually made in the direction of the original incision by which it has been approached — the incision extending through the full thickness of the variously thick layer of lung tissue overlying the cavity. (7) Drainage is provided for — the drain coming out through an unsutured lower part of the flap, the remainder of the flap being sutured back into place — or the drain may come out through a convenient opening in the flap, the circumference of the flap being sutured throughout. Comment. — (i) Usually the removal of parts of one or two ribs suffices to expose the site. (2) The distance of the cavity from the surface should be determined by needle before incising. (3) The following methods of incising the lung tissue are used; — actual cautery — best for soft lung tissue; incision by knife — safe in hardened lung tissue; exploratory needle and small grooved director introduced simultaneously — the needle is withdrawn and director left in situ — upon which dilators of increasing size are slipped into cavity, which is then dilated; blunt dissection; trocar and cannula. (4) If hemorrhage occurs from lung tissue, pack with gauze. (5) Collapse of lung is very apt to follow going through the opened pleural cavity (where the two surfaces are not united by adhesion) — requiring the use of a Fell-O'Dwyer instrument. (6) Pneumotomy may be performed by means of an osteo- thoracoplastic flap, as described under Pneumectomy — or by any method which satisfactorily exposes the lung. PARTIAL PNEUMECTOMY THROUGH CUTANEOMUSCULO-OSSEOUS THORACOPLASTIC FLAP. Description. — The excision of part of a lung involved in some lesion — an uncommon though possible operation. Access may be obtained by the permanent excision of parts of several ribs, after raising a thoracoplasty flap, as described under Pneumotomy — or, better still, by the turning back tem- porarily of a window consisting of the entire thickness of the soft and bony parts of the chest- wall (thoracoplasty). The operation has generally been resorted to for the removal of malignant and hydatid tumors of the lungs — and also for localized tuberculosis. In the latter cases the part excised has usually been the apex. The trap-door flap may hinge in any direction. Preparation — Position — Landmarks. — As in Pneumotomy. Incision. — (1) Supposing the tumor to be of the middle lobe of the right lung — an incision is to be planned outlining an upper, a lower, and an anterior side of a square or rectangle, the fourth or posterior side forming the hinge —the square including the antero-lateral aspect of the fourth, fifth, and sixth ribs. The upper line will lie in the middle of the third interspace, in its long axis — the lower line will be similarly placed in the center of the sixth interspace — the anterior line will run vertically about 2.5 cm. (1 inch) outside of the costal cartilages — and the posterior side will be parallel with the anterior and from 10 to 13 cm. (about 4 to 5 inches) behind it. (2) Supposing the case to be one of localized tuberculosis of the apex of the left lung — a U- shaped flap is planned, with its convexity over the middle of the sternum; its PARTIAL PXEU.MECTOMY. 777 base reaching nearly to the anterior axillary line; its upper horizontal limb in the middle of the first intercostal space; its lower horizontal limb in the middle of the third intercostal space. The general forms of" flap are shown in Fig. 567, A and C. Operation. — Carrying out the steps of the operation indicated in the first incision given above — (1) Incise through skin, fascia, and overlying thoracic muscles, down to the ribs and intercos- tal muscles, along the upper, lower, and curved sides only (Fig. 567, C). (2) Along the anterior line, where the ribs are intersected by the vertical portion of the incision, retract the soft parts a lim- ited distance on each side over the ribs — and make a short incision directly 1 wer the center of their long axes, passing through the periosteum (not through the skin) — free the circumference of the ribs here subperiosteally with a curved peri- osteal elevator over the least width of rib possible to accomplish its freeing. Do not yet divide the rib (Fig. 569). (3) A short incision is now made directly over the center of the long axis of the ribs posteriorly, through all the overlying soft parts down to and through the periosteum — the center of each in- cision being an imaginary line connect- ing the posterior ends of the upper and lower lines (just as the center of the transperiosteal incisions anteriorly was the real line connecting the anterior ends of the horizontal lines of incision). The ribs are here freed subperiosteally as in front — their circumference being bared over the smallest space practic- able (Fig. 569, D, D). (4) A Gigli saw is now carried beneath the freed por- tions of the ribs in front and behind — thus entirely freeing the bony connec- tions of the flap. (5) The upper, lower, and anterior sides of the square, or rectangle, are now carefully incised through their soft structures not already muscular divided, down to the endothoracic fascia, carefully avoiding penetration of the parietal pleura. (6) This large cutaneo- musculo-osseous flap is now carefully elevated and turned backward upon its posterior hinge (which hinge, as far as the soft parts and the integrity of their blood-supply go, has been very little injured by the longitudinal cuts over the ribs) — carefully separating it from the parietal pleura as it is turned backward. (7) If it be found that the two surfaces of pleura? are not ad- Fig. 567. — Incisions for Pxeumotomy or Pneumectomy, by means of Cutaneo- or cutaneomusculo-osseous Flaps: — A, Trap-door flap involving three ribs, hinging forward; C, One involving three ribs, hinging backward. The continuous line represents the skin incision — the broken lines, the rib sections. If base of flap A be poste- rior, the blood supply is better. 778 OPERATIONS UPON THE THORAX. herent, the wound is rather snugly packed with gauze — the flap turned as far back into place as the gauze will allow — and adhesion is awaited for three or four days. Or the vitality of the flap and the firmness of adhesion would probably be more safely and thoroughly secured if the parietal and visceral pleura? were sutured around the extreme margin of the wound with catgut — allowing the flap to fall fully into place, where it could either rest, or be sutured, the necessary time for adhesions to form — and subsequently raised for the excision of the growth. Or the pleura may be incised and the opera- tion completed immediately, after the suturing together of the pleural sur- faces. (8) At the time of the removal of the tumor, the method of the removal will be somewhat determined by the character of the tumor. Whether fluid (e.g., hydatid cyst) or solid (e.g., primary malignant tumor), if its accessi- bility will allow, it is best to ligate off the surrounding lung tissue by carrying Fig. 568. — Exposure of Pleura and Lung by means of a Cutaneomusculo-osseous Flap: — A flap of skin, fascia, muscles, and temporarily excised ribs is turned back. The parietal pleura has been incised and turned back separately upon the composite flap. The lung, with an interlobular sulcus, is seen in the field. chromic gut in a large, fully-curved needle around the growth in segments — and then excise by actual cautery, knife, or blunt dissection, where possible. (See Pneumotomy, page 774.) Sometimes previous ligation is impossible — the tumor is then removed without it. and hemorrhage controlled by packing the cavity with gauze. It sometimes happens in hydatid cysts that the tumors have to be incised, their contents evacuated and their walls curetted, the remainder being allowed to slough out — although complete removal of their walls is much preferable. (9) The cavity left by the removal of a tumor should be temporarily packed with gauze — which is brought out for drainage through a convenient opening made at a margin of the flap — the flap being elsewhere sutured back into its normal position. As the ribs are adherent to the soft part of the flap, which will be sutured to the thorax around its margin, the ribs will thereby be held in place and prevented from being materially displaced. If, when the section of the ribs is made, it be done in PARTIAL PXEUMECTOMY. 779 a beveling fashion (at the expense of the inner aspect of the parts of the ribs in the flap), when the flap is turned back into place this beveling will addi- tionally steady the rib ends in place. If desired, the contiguous ends of the severed ribs, in front and behind, can be united by chromic gut or silver wire, after having been previously drilled. Comment. — (i) In carrying out the steps of the operation indicated in the second incision given above, the description given under Pneumotomy by a Thoracoplasty Flap will sufficiently cover, being practically similar. The indurated apex of the lung, when exposed, is seized with forceps — de- D Fig. 569. — Manner of Raising a Cctaneomusculo-osseous Thoracoplastic "Trap- door" Flap: — A, A, A, Line of incision of soft parts outlining flap; K, K, Retracting convex portion of flap, snowing position of rib-sections at distal end of flap; C, C, Lines of incisions through all overlying soft parts, including periosteum, down to ribs at base of flap; D, D, Details of wounds made through incisions C, C, showing site of section of rib; E, E, Position of rib- sections at base of flap. taching it, if necessary, from its adhesions — and withdrawn through the thoracic opening — a chromic gut ligature is then carried below the involved portion — or a double ligature is passed through upon a needle and each side tied separately — the apex is now excised — the lung replaced, after bringing together the raw surfaces of the lung by gut suture, if possible — and the edges of the parietal pleura? sutured with catgut. The operation is completed as in Pneumotomy by Thoracoplastic Flap. (2) Turner has removed portions of tubercular lung through a simple intercostal thoracotomy in the second interspace — opening the pleura and delivering and excising the involved 780 OPERATIONS UPON THE THORAX. portion of lung. (3) Where the ligature is not used, the actual cautery is the safest means with which to excise lung tissue. (4) The operation is simplified if the neighboring healthy lung is adherent to the parietal pleura. Collapse is also much less likely. (5) The lower two-thirds of the first rib are sometimes alone excised. X. THE PERICARDIUM. SURGICAL ANATOMY. Position. — Occupies middle mediastinum of thorax, lying Detween anterior mediastinum, in front (opposite sternum and third, fourth, fifth, sixth, and seventh costal cartilages) — posterior mediastinum, behind — and pleura?, laterally. Consists of visceral and parietal layers. Has general outline of heart, except where reflected on to great vessels at base of heart. Attachments. — Apex; covers great vessels for about 5 cm. (2 inches) and is held in position by them. Base; attached to central tendon of dia- phragm and adjacent surface. Anterior surface of pericardium; attached to posterior surface of manubrium and ensiform process by superior and inferior sterno-pericardial ligaments. Relations. — Superiorly ; great vessels of heart. Inferiorly ; diaphragm. Anteriorly; thymus gland (or remains); areolar tissue; margins of lungs (especially left); sterno-pericardial ligaments; triangularis sterni muscle; internal mammary vessels; anterior mediastinum; sternum. Posteriorly; bronchi; esophagus; descending aorta; pneumogastric nerves; posterior medi- astinum. Laterally; pleurae; anterior margins of lungs (especially left); phrenic nerves; accompanying phrenic vessels. Structures Covered by Pericardium. — Aorta; superior vena cava; pul- monary artery and bifurcations; ductus arteriosus; four pulmonary veins. Arteries. — Pericardiac and musculophrenic from internal mammary; pericardiac, esophageal, and bronchial from descending aorta; coronary from ascending aorta; phrenic from abdominal aorta. Veins. — Pass to azygos, internal mammary and phrenic trunks, cardiac veins emptying into right auricle. Nerves. — Branches from pneumogastric, phrenic, and sympathetic. Lymphatics. — Empty into mediastinal glands. SURFACE FORM AND LANDMARKS. The anterior surface of the upper portion of the pericardium is from 3 to 5 cm. (about i\ to 2 inches) posterior to the sternum — and the anterior surface of the lower portion is about 1 cm. (about f inch) posterior to the sternum. Normally there is a collapsed cul-de-sac at the base of the anterior portion of the pericardium, which is much distended in effusion. This is the site sought in drainage. According to Yoinitch-Sianojentsky, the interpleural pericardial area extends vertically from the lower border of the left fifth chondro-sternal articulation to the left seventh chondro-sternal articulation — lying mainly behind the sternum but also corresponding to the sternal end of the sixth intercostal space — wherefore, puncture of the pericardium in the sixth space PERICARDIOCENTESIS. 781 may be made directly inward — whereas it should be directed very obliquely downward if made in the fifth interspace, to avoid the heart (that is, it runs parallel with the heart after entering the pericardium). A cartilaginous bridge unites the sixth and seventh costal cartilages — and sometimes also the fifth and sixth — and thereby the intercostal area for puncture, between the inner border of the cartilaginous bridge and the left border of the sternum, may be considerably encroached upon. The internal mammary artery runs down at an average distance of about 1.2 cm. (about \ inch) to the outer side of the sternal border— to the sixth interspace, where it divides into the superior epigastric and the musculo- phrenic. For outline of Pleura, see Anatomy of Pleura. PERICARDIOCENTESIS. Description. — -Pericardiocentesis, or paracentesis pericardii, consists in the penetration of the pericardium by a hollow needle attached to a vacuum syringe for the purpose of withdrawing pericardial contents. It is chiefly used for diagnosis — sometimes for the withdrawal, in bulk, of the fluid in hemo- pericardium and hydropericardium. In pyopericardium pericardiotomy should be performed, rather than pericardiocentesis. Preparation. — Region shaved, if necessary. Position. — Patient supine, preferably resting upon some object which will render chest prominent and increase the width of the intercostal spaces. Surgeon on left of patient. Sites of Puncture. — Puncture may be made in either the fifth or sixth interspace — and either internal to or external to the internal mammary artery (Fig. 570) . In the fifth interspace, the width is greater near the sternal border, and is the space usually chosen. In the sixth interspace, the internal mammary artery and the pleura are both further from the left sternal border, and puncture may be made more directly inward. Where sufficient width of space exists, the sixth interspace should be chosen. Puncture should, by preference, be made internal to the internal mammary artery, as the pleura is in less danger of injury, especially in the fifth space---and even in the sixth space, the punc- ture would have to be about 2.5 cm. (about 1 inch) outside of the border of the sternum to be sure of being external to the internal mammary artery, and then it is apt to strike the pleura. (See Fig. 570.) Landmarks. — Fifth left intercostal space (or sixth) ; left margin of sternum; course of internal mammary artery; anterior border of left lung and pleura; right border of heart. See the Surgical Anatomy of these structures. Operation.— (1) An incision should be made in the long axis of the sternal end of the fifth intercostal space, through skin, fascia, pectoralis major, down to the intercostal membrane, clamping all bleeding vessels. (2) Expose the in- tercostal membrane by retraction of the edges of the wound. Grasping the needle with right forefinger and thumb, so placed as to prevent its suddenly entering too far, pierce the fifth intercostal space near the left border of the sternum, and near the upper border of the sixth costal cartilage — penetrate straight backward about 0.8 cm. (about j\ inch), which is, approximately, the thickness of the sternum — then penetrate inward toward the posterior surface of the sternum for 1 to 2 cm. (f to if inch), to avoid the possible forward extension of the pleura — thence penetrate downward and inward through the pericardium — the sensation generally indicating when the pericardium is 782 OPERATIONS UPON THE THORAX. entered. Briefly stated — pass backward, inward, and downward (Delorme and Mignon). Where the sixth intercostal space is used, the needle is passed directly inward and backward, close to the sternum and in the middle of the interspace (Voinitch-Sianojentsky) . Comment. — Puncture may be made without previous incision, but pre- liminary incision is better, as the intercostal space and border of the sternum are exposed, and the course and depth of the needle and entrance into the pericardium are better appreciated. Also the bridge of cartilage across the intercostal space, when present, may be avoided. There is less danger of wounding the heart in the sixth interspace. Fig. 570. — Sites for Pericardiocentesis: — The uncovered area of the heart and the course of the internal mammary artery are shown. Paracentesis is preferably made to the inner side of the internal mammary artery, in the sixth (by choice) or fifth intercostal space, close to the margin of the sternum, — or to the outer side of the artery, in the fifth or iourth interspace, from 2.5 to 5 cm. (1 to 2 inches) outside of the sternal border. (Thorax modified from Deaver.) PERICARDIOTOMY THROUGH AN INTERCOSTAL INCISION. Description. — Incision of the pericardium through the fifth intercostal space — generally resorted to for purposes of drainage. The method here described will be the simpler one of exposing and incising the pericardium through an intercostal incision. The more extensive exposures involve the PERICARDIOTOMY. 783 removal of part of the cartilaginous or bony wall of the thorax. The inter- space where the operation of intercostal pericardiotomy is usually done is so narrow that the operation by excision of the fifth costal cartilage is much preferable. Preparation and Position. — As for Paracentesis Pericardii. Landmarks. — Sternal end of left fifth intercostal space (between fifth and sixth rib-cartilages) ; and other landmarks mentioned under Paracentesis Pericardii. Incision. — Incision in center of fifth intercostal space, parallel with its long axis — beginning at the left sternal border and extending 5 to 7.5 cm. (about 2 or 3 inches) in length. (See Fig. 571, A.) Fi,c 571. — Sites of. Incisions for Pericardiotomy: — A, Intercostal incision in fifth left interspace; B, Incision for excision of fifth left costal cartilage: C, C, Kocher"s sternocostal incision for excision of sixth and sometimes of fifth and fourth costal cartilages. (Thorax modified from Gray.) Operation. — (1) Incise skin, fascia, pectoralis major, external intercostal membrane, internal intercostal muscles — ligating all bleeding vessels. (2) Internal mammary artery is either divided between two ligatures, or, prefer- ablv, drawn outward. (3) Triangularis sterni muscle is divided, or its fibers separated by blunt dissection. If the pleura be in the field, it will lie exposed after passing through the triangularis sterni, and should be carefully dis- placed outward. (4) The pericardium is now within sight and touch — and is carefully seized and steadied by two toothed forceps and incised for 1 to 2.5 cm. (about ^ to 1 inch) between them, in a direction downward and out- ward from the border of the sternum. (5) The edges of the pericardium are sutured into the deeper plane of the thoracic wound — that is, at the opening through the internal intercostal muscle. Drainage is established from the interior of the pericardium through the lowest part of the outer wound, the upper portion of which may be closed. Comment. — (a) The pericardium should be opened with scissors, and the opening increased by blunt-pointed scissors or probe-pointed knife, (b) Pericardiotomy may also be performed, but less safely, through the costo-xiphoid angle (Larrey's space). 784 OPERATIONS UPON THE THORAX. EXPOSURE OF PERICARDIUM AND HEART FA' EXCISION OF LEFT FIFTH COSTAL CARTILAGE. Description. — Exposure of pericardium and heart after excision of the left fifth costal cartilage — and, where more room is required, also of the fourth and sixth costal cartilages. Generally resorted to for suturing wounds of the heart and pericardium and for drainage of the latter — especially in those cases where more space is required than attainable by the intercostal operation. Preparation — Position. — As for Paracentesis Pericardii. Landmarks. — Left fifth costal cartilage; and other landmarks men- tioned under Paracentesis Pericardii. Incision. — Directlv over center of fifth costal cartilage — beginning over center of sternum and ending just beyond chondrocostal articulations. (See Fig. 571, B.) Operation. — (1) Incise skin, superficial fascia, pectoralis major, and deep fascia directly down upon the full length of the fifth costal cartilage, ligating all vessels severed. (2) Isolate the fifth costal cartilage from its neighboring structures (external intercostal membrane, internal intercostal muscle, and triangularis sterni, if any of the last be attached) as completely I- if;. 5 72— Exposlrk of Pkricardhm and Hkart by Partial Excision of Left Fifth Costal Cartilage :— A, Pectoralis major muscle retracted, overlying the retracted intercostal muscles and membrane; B, Internal mammary vessels; C, Intercostal vessels; D, Sternum and part of fifth costal cartilage; E. Pleura and lung retracted; F, Pericardium, incised and margins retracted ; G, Heart, showing incised wound being sutured. as possible, by hugging and clearing the cartilage closely. Divide its sternal and costal ends with blunt-pointed pliers — or, preferably, with Gigli saw. (3) Ligate the intercostal vessels at both ends of the wound and divide them between the ligatures. Divide tissues which intervene between bed of carti- lage and internal mammary artery. Cut the internal mammary artery be- tween two ligatures, or draw it outward. Incise the triangularis sterni if necessary, or separate it from the sternum and push it to the right. Displace the pleura outward, after careful separation from the pericardium and sternal structures. (4) The pericardium is now in the field, and is treated as indi- cated by the object of the operation; — In Pericardiotomy (for drainage) the SURGICAL ANATOMY OF THE HEART. 785 pericardium is steadied between two toothed forceps and carefully incised obliquely downward and outward from close to the border of the sternum; — In Pericardiorrhaphy (for incised wounds of the pericardium) the lips of the pericardial wound are approximated and so sutured with catgut as to bring the serous surfaces together. (5) Where the pericardium has been incised for drainage, it is sutured into the lower plane of the outer wound — that is, the triangularis sterni and internal intercostal muscles. The external wound is closed in greater part, and drainage provided from the interior of the peri- cardium through the part of the thoracic wound left open. Where the peri- cardium has been sutured, temporary drainage of the external wound only is instituted, through a limited opening — the remainder of the thoracic wound being closed. (See Fig. 572.) Comment. — (a) This may be considered the best manner of exposing the pericardium and heart — and the opening of the pericardium after free exposure may, ordinarily, be considered safer than puncture or aspiration through an unopened thorax, (b) Having excised the fifth costal cartilage by the above incision, if more room be required, or it be desired also to remove the fourth and sixth costal cartilages in addition, the object may be accom- plished by making a vertical incision at the inner end of the original incision, down the center of the sternum, and another vertical incision at the outer end of the original incision. Where both the fourth and sixth costal cartilages are to be removed, these two vertical incisions will extend from above the fourth to just below the sixth cartilages, thus making an M-shaped incision, and enabling two flaps of soft parts down to the cartilages to be turned, the one upward, and the other downward. If it be desired to remove only the fourth cartilage in addition, then only the upper parts of the vertical incisions are added. If only the sixth cartilage must be additionally removed, then only the lower parts of the vertical incisions are used. If it be known from the start that two or more costal cartilages must be removed, an oval or modi- fied horseshoe flap of soft parts with its base over the sternum and its con- vexity extending beyond the outer limit of the excision, may be used, — or an I-shaped incision, the vertical portion being from 1 to 2 cm. (about h to f inch) from the sternum, the transverse parts corresponding with the uppermost and lowermost ribs to be removed, may be used, the two flaps thus outlined being turned inward and outward. Additional room may always be gotten by resecting, with rongeur forceps, the left border of the sternum. Comment. — Where a greater exposure is necessary, Kocher's sternocostal incision may be made — through which not only the sixth, but the fifth and fourth, costal cartilages may be excised (Fig. 571, C, C). PERICARDIORRHAPHY. Consists in the suturing of wounds of the pericardium. The operation is sufficiently described under Exposure of the Pericardium and Heart by Excision of the Left Fifth Costal Cartilage (page 784). XL THE HEART. SURGICAL ANATOMY. Position of the Heart and Its Various Parts. — Occupies greater por- tion of middle mediastinum — lying obliquely behind lower two-thirds of sternum — and projecting about 7.5 cm. (about 3 inches) to left of median line, 5° 786 OPERATIONS UPON THE THORAX. and about 4 cm. (about 1^ inches) to right of median line — extending from above to the right, to below and to the left. Base ; directed upward, back- ward, and to the right, corresponding to interval between fifth and ninth dorsal vertebra?. Apex; directed downward, forward, and to left, corresponding to chest-wall between fifth and sixth costal cartilages — at a point about 2 cm. (about I inch) to inner side, and about 4 cm. (about ij inches) below left male nipple. Inferior border; corresponds to right ventricle and rests on central tendon of diaphragm. Anterior border ; corresponds to right auricle. Left border; corresponds to left ventricle. Anterior surface; formed mainly by right ventricle and part of left. Posterior surface; formed mainly by left ventricle. Relations of Heart to Chest-wall. — Base; corresponds to line from point on lower border of second left costal cartilage 2.5 cm. (1 inch) from sternum, to upper border of third right costal cartilage 1.2 cm. (about J inch) from sternum. Apex; corresponds to point 3.8 cm. (about 1^ inches) below, and 2 cm. (f inch) internal to left male nipple — which is about 9 cm. (about 3^ inches) to left of median line, and between fifth and sixth costal cartilages, and just internal to end of fifth rib. Lower border ; corresponds to line from apex, with slight downward convexity, to seventh right chondro- sternal articulation. Right border; represented by line joining right extremity of base-line with right extremity of lower border-line (seventh right chondro- sternal articulation), with a slight outward convexity projecting about 3.8 cm. (about 1^ inches) from median line. Left border; represented by line joining left extremity of base-line with apex-point, with slight convexity to left — extending about 7.6 cm. (about 3 inches) to left of median line of sternum. Relations of Parts of Heart to Chest-wall. — Right auricle ; behind sternal ends of third, fourth, fifth, and sixth costal cartilages of right side; corresponding intervening spaces; right border of sternum. Right auricular appendix; behind or to left of median line, on level with third costal cartilages. Left auricle ; extends vertically from level of lower border of second left costal cartilage to upper border of fourth — and corresponds, hori- zontally, with body of seventh dorsal vertebra and heads of adjoining left ribs. Apex of left auricular appendix; behind third costal cartilage, about 3.2 cm. (ij inches) to left of sternum. Right ventricle; extends from third costal cartilage above, to seventh costal cartilage below, on left side. Right auriculo-ventricular sulcus; line obliquely upward, from sternal end of sixth right costal cartilage, to third left costal cartilage. Left ventricle ; not in contact with chest-wall, except small part of apex of left ventricle during expiration. Relations of Orifices of Heart to Chest-wall. — Pulmonary orifice (Pulmonary Semilunar Valves) ; behind junction of upper border of left third costal cartilage with sternum. Aortic orifice (Aortic Semilunar Valves); behind left half of sternum, opposite lower border of third costal cartilage. Left auriculo-ventricular opening (Mitral Valves) ; behind sternum, to left of median line, opposite fourth costal cartilage. Right auriculo-ven- tricular opening (Tricuspid Valves); behind center of sternum, opposite fourth intercostal space. Relations of Uncovered Area of Heart to Chest-wall. — The triangular area of the heart uncovered by pleura is represented within the three following lines; — (a) Draw line downward and to left from middle of sternum, between fourth costal cartilages, to apex of heart; (b) Draw line from starting-point of first line down the lower third of the central line of the sternum; — (c) Draw line from sternal end of sixth right costal cartilage through seventh left costal cartilage. PARACENTESIS OF RIGHT VENTRICLE OF HEART. 787 Arteries. — Anterior and posterior coronary. Veins. — Correspond with arteries, emptying into right auricle. Lymphatics. — End in thoracic and right lymphatic ducts. Nerves. — From cardiac plexus. PARACENTESIS OF RIGHT AURICLE OF HEART. Description. — Puncture of right auricle of heart by needle of aspiratory syringe — for the purpose of withdrawing a portion of the blood in cases where the right side of the heart is engorged from obstruction to the circulation through the lungs. Preparation — Position. — As for Paracentesis Pericardii. Landmarks. — Position of right auricle. Operation. — An aspiratory needle, so held as to control the depth of puncture, is entered in the right third intercostal space, close to the margin of the sternum — and thrust directly backward through skin, fascia, pectoralis major, external intercostal membrane, internal intercostal muscle, probably through fibers of triangularis sterni, through areolar tissue of anterior medi- astinum, both layers of pleura, periphery of right lung, into the right auricle — its entrance generally being recognized by the sensation, and verified by the free flow of blood into the syringe. The requisite amount of blood is with- drawn — and the wound is sealed with sterile cotton and collodion. (See Fig- 573, D.) Comment. — (a) A preliminary incision may be made in the intercostal space, down to the intercostal membrane — whereby the entrance of the needle into the auricle, especially in thick thoracic walls, is more readily recognized. However, in using a vacuum syringe, this is not generally neces- sary, (b) It is necessary to withdraw blood by suction, as the blood-pressure in the right auricle is not sufficient to cause spontaneous flow, (c) The right auricle is preferable to the right ventricle for operation, because its position is not apt to be altered and its internal antero-posterior diameter is greater than that of the richt ventricle. PARACENTESIS OF RIGHT VENTRICLE OF HEART. Description. — Puncture of right ventricle of heart by needle of aspiratory syringe, or by fine trocar and cannula — in the same cases as mentioned under Paracentesis of Right Auricle (q. v.). Preparation — Position. — As in Paracentesis of Right Auricle. Landmarks. — Position of Right Ventricle. Operation. — The cannula and trocar, or needle, are entered in the fourth right intercostal space, 2.5 cm. (about 1 inch) from the right sternal border. It is manipulated as in Paracentesis Auriculi — and passes through practically the same structures — but is directed inward as well as backward, in order to strike the right ventricle, which, normally, might not be certainly reached, but which is reached with greater certainty when thus engorged. The requisite amount of blood is allowed to flow spontaneously — and the wound is then sealed with sterile cotton and collodion. (See Fig. 573, E.) Comment. — Blood-pressure in the right ventricle is sufficient to cause spontaneous flow through the cannula. See Comment under Paracentesis Auriculi. 788 OPERATIONS UPON THE THORAX EXPOSURE OF THE HEART AND PERICARDIUM BY A THORACOPLASTIC FLAP — ROTTER'S OPERATION. Description. — The heart is exposed through a thoracoplasty flap con- sisting of the fourth and fifth costal cartilages and parts of the corresponding ribs. No attempt to preserve the pleura intact is made — as that membrane is almost always involved in the injury and it is generally indicated to remove blood from its cavity. Preparation. — As pneumothorax may have occurred prior to operation, Fig- 573- — Sites for Paracenteses and Lines for Exposures of the Heart: — D, Paracentesis of right auricle; E, Paracentesis of right ventricle; A, Rotter's thoracoplastic flap; B, Fontan's thoracoplastic flap; C, Kocher's thoracoplastic flap. (Thorax modified from Deaver.) or may take place in the course of the operation, the operation may be per- formed in Sauerbruch's chamber (negative atmospheric pressure) or in Bauer's apparatus (increased pressure). In this way the collapse of the lungs and, therefore, of the heart is avoided. Position. — Patient supine, preferably resting upon some object which will elevate the chest and render it prominent and thus increase the width of the intercostal spaces. Landmarks. — Left border of sternum; third, fourth, and fifth ribs and their cartilages; mammary line. EXPOSURE OF THE HEART AND PERICARDIUM. 789 Incision. — A flap is outlined with its hinge near the left border of the sternum — beginning about 2 cm. (f inch) from the left margin of the sternum. These incisions are continued along the lower borders of the third and fifth ribs — and may extend outward in the interspaces as far as the mammary line. Their outer ends are connected by a vertical incision (Fig. 573, A). Operation. — (1) In the horizontal incisions are divided the skin, fascia, Fig. S74- — Rotter's Osteoplastic Exposure of Heart and Pericardium: — A, Fifth rib; B, Fourth rib; C, Intercostal muscles; D, Pectoralis major; E, Costochondral junction (frac- tured); F, Internal mammary vessels; G, Parietal pleura; H, Fatty tissue over pericardium; I, Visceral pleura, with lung showing through; J, J, Incised pericardium retracted; K, Traction- suture in apex of heart. (Modified from Rockenheimer and Frohse.) pectoralis major and minor, intercostals, and generally the parietal layer of the pleura (Fig. 574). The vertical incision does not at first go deeper than the pectoral muscles. The intercostal vessels are ligated and the fourth and fifth ribs divided — and the incision is then carried to the pleura. (2) The entire cutaneomusculo-periosteo-osseous flap is now turned upward and inward. Even if the pleura have previously escaped, it may be torn in the process of 790 OPERATIONS UPON THE THORAX. exposure and turning back of the flap. Pneumothorax should be prevented by drawing the lung forward and suturing it to the intercostal muscles — or the opening in the pleura may be covered by gauze tampons, the lung being pushed backward and outward. When the flap is turned upward and inward, the triangularis sterni muscle is torn. The costal cartilages are apt to break near their articulations — disarticulation should, however, be carried out. The internal mammary artery is generally left intact. (3) The fatty areolar tissue over the pericardium is retracted and the pericardium incised in its longitudinal axis, from its infero-external aspect. Fixation sutures are introduced into the muscular tissue of the apex of the heart if necessary to steady it in the indicated manipulations. All accumulated blood in the pericardium is removed. (4) The special object of the operation is now accomplished. Unless specially indicated, the pericardium is sutured without drainage (as the constant impact of the heart against the drain is apt to produce pericarditis). Drainage may be used down to the pericardium, in closing the wound. CARDIORRHAPHY. Description. — Suturing of wounds of the heart-muscle — after having freely exposed the organ by the operation just described or by one of those mentioned in the preceding pages. Preparation — Position. — As for Paracentesis Auriculi. Landmarks. — The landmarks will be those of the operation by which the heart is exposed. For the fullest exposure, the osteoplastic resection for exposure of the anterior and middle mediastina is probably best — see page 750. For a less extensive exposure, the resection of the fifth costal cartilage may be used — see page 784. Additionally, the landmarks of the parts of the heart should be noted. Operation. — (1) The pericardium having been exposed and the wound in it enlarged, if necessary, the heart is brought into the held. (2) Silk, upon a fully curved needle, held in a good needle-holder, is used. The needle is quickly, but gently and steadily, inserted during diastole only, and no attempt is made to proceed with the operation except during diastole. The needle enters about 4 to 5 mm. (about f,; to yV, inch) from one edge — penetrates moderately deeply only (never entering the endocardium) — crosses the gap between the walls of the wound (or may dip beneath the bottom of the wound, if the wound does not entirely penetrate the wall of the heart and there is room beneath it for suture to pass without entering the endocardium) — and makes its exit at a corresponding point on the opposite side. During a subsequent diastole the thread is drawn through the lips of the wound — and, during still another, knotted. After the first suture has been placed, gentle traction upon it steadies the heart while placing the others. (3) The pericardial wound might also be sutured in a perfectly clean case — but, practically, it is better to temporarily leave it open, lightly packing the mouth of the pericardial wound and carrying drainage through that part of the external wound not closed. (See Fig. 572.) Comment. — When the needle enters the heart, there is a momentary stoppage, followed by brief tumultuous action. BRONCHOTOMY. 79 1 XII. THE THORACIC TRACHEA. SURGICAL ANATOMY. See Trachea under Operations upon the Xeck (page 702). THORACIC TRACHEOTOMY BY POSTERIOR MEDIASTINAL THORACOPLASTIC FLAP OPERATION. See Posterior Mediastinal Thoracotomy (page 752). The exposure and incision of the trachea in the posterior mediastinum is resorted to for the removal of foreign bodies situated too low in the trachea to be accessible and removable from a cervical tracheotomv wound. XIII. THE BRONCHI. SURGICAL ANATOMY. Relations. — (1) Right bronchus; vena azygos major passes above bron- chus from behind forward, on its way to superior vena cava ; right pulmonary arteryliesat first below and then in front of bronchus. (2) Left bronchus; passes beneath arch of aorta, resting upon esophagus, thoracic duct, and de- scending aorta; left pulmonary artery lies at first above and then in front of it. Differences in the Bronchi. — (1) Right bronchus; about 2.5 cm. (about 1 inch) long; wider, shorter, and more horizontal than left; enters right lung opposite fifth dorsal vertebra. About 2 cm. (about f inch) from origin, the upper or eparterial branch of bronchus is given off above right pulmonary artery to upper lobe of lung: the main bronchus, or hyparterial branch, passes below and behind right pulmonary artery and divides into two branches, for middle and lower lobes. 2 Left bronchus; about 5 cm. (about 2 inches) long; smaller, longer, and more oblique than right: enters left lung opposite sixth dorsal vertebra (about 2.5 cm., or 1 inch, lower than right). Left bronchus is entirely below left pulmonary artery (hypar- terial), and divides into two branches, for upper and lower lobes. Note. — In majoritv of cases, right bronchus seems a more direct continuation of trachea than left (that is, the dividing ridge between the two bronchi lies more to the left) — although the left is the more oblique in direction — wherefore, foreign bodies are more frequently lodged in the right bronchus. Arteries. — Bronchial branches of thoracic aorta. Veins. — Bronchial — emptying into vena azygos major on right side — and into superior intercostal vein on left. BRONCHOTOMY. Description. — Exposure and incision of the bronchial tubes. Generally resorted to for the removal of foreign bodies — and sometimes for the drainage of bronchiectatic cavities. The manner and site of the operation will depend upon the circumstances of the individual case — the manner of approach being by one of the procedures already described. Where Bronchotomy is done for the removal of foreign bodies, the main bronchi are the ones usually opened — and are exposed through a Posterior Mediastinal Thoracotomy, by means of the osteoplastic flap operation de- scribed at page 752. The bronchi are opened as the trachea is opened in that operation — either directly over the foreign body — or at the site most accessible 792 OPERATIONS UPON THE THORAX. to the object — the object being sought, in the latter case, by slender, curved forceps introduced through the opening in the bronchus. Both the bronchial wound and the outer wound are treated as in the operation to which reference has been made. Where Bronchotomy is performed to afford drainage in a case of dilated bronchial tube, in Bronchiectasis, the operation is practically the same as Pneumotomy for abscess, etc. The operation is rarely of much avail, unless it be practically a single, defined cavity in an accessible site, previously well located. (See Fig. 559, J.) XIV. THE THORACIC ESOPHAGUS. SURGICAL ANATOMY. See Esophagus under Operations upon the Neck (page 711). THORACIC ESOPHAGOTOMY BY POSTERIOR MEDIASTINAL OSTEOPLASTIC ELAP OPERATION. See Posterior Mediastinal Thoracotomy (page 752). Exposure and incision of the esophagus in the posterior mediastinum are resorted to for the removal of foreign bodies situated too low in the esophagus to be accessible and removable from a cervical esophagectomy. Having isolated the esophagus, as described in the operation mentioned, and having located the foreign body, the esophagus is steadied with toothed forecps, if necessary — an incision in its longitudinal axis is made — the lips of the wound are held apart by two pairs of toothed forceps, and the foreign body removed with appropriate forceps. The opening into the esophagus should be made upon its lateral aspect (generally the left aspect). The wound in the esophagus, in favorable cases, may be sutured with catgut — for drainage may take place into the stomach (where in a corresponding operation upon the trachea, or bronchi, drainage is by means of the external wound, and suturing of the trachea or bronchus is not indicated). Drainage is instituted from the wall of the esophagus through the outer wound. (See Fig- 559, K CHAPTER V. OPERATIONS UPON THE ABDOMINO-PELVIC REGION. L THE ABDOMINO-PELVIC WALL. SURGICAL ANATOMY OF THE ABDOMINO-PELVIC WALL. Boundaries of the Abdomino-pelvic Cavity. — Above ; concave dome of diaphragm. Below; levatores ani and coccygei muscles ("diaphragm of pelvis"). Laterally; lower thoracic, and abdominal and pelvic walls. Boundaries of Abdominal Cavity. — Superiorly; central tendon of dia- phragm (rising to about inferior end of sternum, or seventh chondro-sternal joint); right half of diaphragm (to about level of fifth rib, or about 2.5 cm., or 1 inch, below right male nipple) ; left half of diaphragm (rising not quite so high as right) ; costal arches and ensiform process of sternum. Inferiorly ; ileo-pectineal lines, laterally; crest of pubic bones, anteriorly; base of sacrum and sacro-vertebral angle, posteriorly; Poupart's ligaments, superficiallv. Boundaries of Pelvic Cavity. — Superiorly; ileo pectineal lines, later- ally; crest of pubic bones, anteriorly; base of sacrum and sacro-vertebral angle, posteriorly. Inferiorly; Anteriorly; pubic arch and subpubic liga- ment; rami of os pubis and ischium; — Posteriorly; great sacro-sciatic liga- ments and tip of coccyx; — Laterally; tuberosities of ischia. Regions of the Abdomino-pelvic Cavity and Their Contents. — Basis of divisions ; Two horizontal lines are drawn — one corresponding with the lowest part of the tenth costal arch — the other with the most prominent lateral points of the iliac crests; — and two vertical lines are made to intersect these passing upward from the center of Poupart's ligaments — thus forming the nine following regions (Quain) ; — Epigastric ; most or all of left lobe of liver; part of right lobe of liver; gall-bladder; part of body and cardiac and pyloric orifices of stomach; first and second parts of duodenum; duodeno-jejunal flexure; pancreas; supero-internal part of spleen; parts of both kidneys; suprarenal bodies. Right hypochondriac; most of right lobe of liver; hepatic flexure of colon; part of right kidney. Left hypochondriac; por- tion of stomach; greater part of spleen; tail of pancreas; splenic flexure of colon; part of left kidney; part of left lobe of liver (sometimes). Umbilical; most of transverse colon; third part of duodenum; some convolutions of jejunum and ileum; part of mesentery; part of great omentum; part of right kidney (sometimes parts of both). Right lumbar; ascending colon; portion of right kidney; part of ileum (sometimes). Left lumbar; de- scending colon; part of jejunum; small part of left kidney (sometimes). Hypogastric ; convolutions of ileum; bladder in children (and in adults when distended); gravid uterus; sigmoid loop; upper portion of rectum. Right iliac; caecum, with vermiform appendix; end of ileum. Left iliac; sig moid colon; convolutions of jejunum and ileum. 793 794 OPERATION'S UPON THE ABDOMINO-PELVIC REGION. Apertures in the Abdominal Wall. — Above; those through the dia- phragm (see that structure, page 756). Below; for femoral vessels ; for sper- matic curd. Anteriorly; umbilicus. Fig. 575- — Distribution of Nerves to Antero-lateral Abdominal Wall:— The Intercostal' (upper six) nerves are distributed to the chest proper; — The lower abdominal inter- costal (lower six) nerves pass forward from the intercostal spaces, between the internal oblique and transversalis muscles, to the sheath of the rectus. (Modified from an unplaced source.) Structures of Antero-lateral Abdominal Wall. — (From without in- ward) — skin; superficial fascia, superficial and deep layers; general areolar tissue overlying external oblique muscle, and special intercolumnar fascia of external abdominal ring; external oblique and its aponeurosis; internal oblique and its aponeurosis; transversalis and its aponeurosis; rectus; pyramidalis; fascia transversalis; subperitoneal areolar tissue; peritoneum. Structures of Posterior Abdominal Wall.— (J) Osseous Portion — five SURGICAL ANATOMY OF THE ABDOMINO-PELVIC WALL. 795 lumbar vertebrae and interarticular fibro-cartilages; posterolateral portions of ilia; — (2) Soft Portion (from without inward) — skin; subcutaneous areolar tissue ; lumbar aponeurosis (posterior layer) ; erector spina? ; lumbar aponeu- rosis (middle layer) attached to transverse processes of lumbar vertebrae; quadratus lumborum; lumbar aponeurosis (anterior layer); psoas; crura of diaphragm; kidney, areolar tissue, and colon; subperitoneal areolar tissue; peritoneum. Arteries of Antero-lateral Abdominal Wall. — Superficial epigastric, superficial circumflex iliac, and superficial external pudic from femoral; lowest two intercostals from thoracic aorta; abdominal branches of lumbar arteries from abdominal aorta; ilio-lumbar from internal iliac; deep circum- flex iliac and deep epigastric from external iliac; superior epigastric and musculophrenic from internal mammary. Arteries of Posterior Abdominal Wall. — Lumbar branches of abdom- inal aorta. Veins of Antero-lateral Abdominal Wall. — Correspond, chiefly, with the arteries. Veins of Posterior Abdominal Wall. — Correspond, chiefly, with the arteries. Lymphatics of Antero-lateral Abdominal Wall. — Superficial vessels above umbilicus empty into axillary glands: — superficial vessels below um- bilicus empty into inguinal glands: — deep vessels above umbilicus empty into sternal glands (probably) : — deep vessels below umbilicus empty into iliac glands. Lymphatics of Posterior Abdominal Wall. — Median (aortic) lumbar glands: — lateral (psoas) lumbar glands. Distribution of Nerves to Antero-lateral Abdominal Wall (Fig. 575). — Lower intercostal nerves; emerging from intercostal spaces behind costal cartilages (except twelfth, which is subcostal), they pass forward between inter- nal oblique and transversalis (generally intercommunicating here) — penetrate outer edge of sheath of rectus — supply rectus — pass through its substance — penetrate anterior layer of rectal sheath — and are distributed to skin. Lateral cutaneous branches of lower intercostal nerves; divide into Anterior Branches (to skin up to outer border of rectus, and superficial part of external oblique) and Posterior Branches (to skin of outer part of back). Sixth intercostal; supplies region between lower end of sternum and tip of end- form cartilage. Seventh intercostal; distributed to region near lower end of ensiform cartilage. Eighth intercostal; runs up under cover of costal arch and supplies area of middle linea transversa, between tip of ensiform cartilage and umbilicus. Ninth intercostal; runs directly forward on level with ninth costal cartilage and supplies region just above umbilicus. Tenth intercostal; runs directly forward on level with tenth costal cartilage and sup- plies skin about umbilicus. Eleventh intercostal; runs forward and down- ward, supplying the region a little below the umbilicus. Twelfth intercostal ; passes in front of quadratus lumborum, along lower border of twelfth rib — pierces transversalis and runs forward between transversalis and internal oblique — (a) Anterior Branch of Twelfth Intercostal, penetrates rectus and is distributed below a point midway between umbilicus and pubis — (b) Lateral Cutaneous Branch of Twelfth Intercostal, penetrates internal oblique, then emerges from external oblique from 2.5 to 8 cm. (about 1 to 3 inches) above the iliac crest, and is distributed to skin over front of hip. Ilio-hypo- gastric branch of first lumbar ; emerges from upper outer border of psoas 796 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. — runs in front of quadratus lumborum to iliac crest — piercing transversalis posteriorly, and divides between transversalis and internal oblique, about 6.5 cm. (about 2 \ inches) posterior to anterior superior iliac spine into: — (a) Hypogastric Branch, passing forward between transversalis and internal oblique, pierces internal oblique, then pierces aponeurosis of external oblique about 2.5 cm. (about 1 inch) above and just to outer side of external abdominal • ring, and supplies skin of hypogastric and external ring region, — (b) Iliac Branch, piercing internal oblique and external oblique directly above crest of ilium, and supplying skin of gluteal region posterior to lateral cutaneous branch of twelfth dorsal nerve. Ilio-inguinal branch of first lumbar; passes from outer border of psoas just inferior to ilio-hypogastric — runs obliquely across quadratus lumborum and iliacus — penetrates transversalis near anterior part of iliac crest (communicating here with ilio-hypogastric) —runs forward between internal oblique and transversalis, piercing internal oblique a little in front of anterior superior iliac spine — passes forward beneath aponeurosis of external oblique, accompanying cord through inguinal canal and emerging at external abdominal ring — supplying skin of upper and inner aspects of thigh — and scrotum in male, and labium in female. Distribution of Nerves to Posterior Abdominal Wall. — Posterior divisions of lumbar nerves; dividing into internal and external branches. Genitocrural nerve ; arising from first and second lumbar nerves, passes obliquely through psoas, emerging from its inner border opposite disc between third and fourth lumbar vertebrae — passing downward upon anterior surface of psoas and dividing, at outer side of external iliac artery, into — (a) Genital Branch, piercing fascia transversalis and descending on posterior part of spermatic cord through inguinal canal — emerging at external abdominal ring and supplying cremaster muscle in male, and round ligament in female. — (b) Crural Branch, descending on external iliac artery and piercing femoral sheath about 5 cm. (about 2 inches) below Poupart's ligament, to be dis- tributed to skin of upper central part of thigh. External cutaneous ; arising from second and third lumbar nerves, emerges from center of outer border of psoas and runs obliquely over iliacus muscle to notch just below anterior superior iliac spine, where it escapes beneath Poupart's ligament on to thigh. Anterior crural ; obturator ; accessory obturator nerves — descend to their distributions through the postero-lateral aspect of the abdomino-pelvic wall. Summary of Distribution of Anterior Abdominal Nerves. — Seventh and eighth run upward and inward and supply upper third of abdominal wall; — ninth and tenth run nearly transversely inward and supply middle third; — eleventh and twelfth, and Ilio-hypogastric and Ilio-inguinal, run downward and inward and supply lower third of abdominal wall. Anterior Sheath of Rectus. — Formed, above, by blending of aponeu- roses of external oblique and outer lamella of internal oblique — below, by blending of aponeuroses of external oblique, internal oblique, and trans- versalis. Posterior Sheath of Rectus. — Formed, above, by blending of aponeu- roses of inner lamella of internal oblique and transversalis; next to which come, in order, transversalis fascia, subperitoneal areolar tissue, and parietal peritoneum, — below semilunar fold of Douglas, by transversalis fascia alone; next to which come, in order, subperitoneal areolar tissue and parietal peri- toneum. Linea Alba. — A tendinous raphe, extending from ensiform cartilage to SURFACE FORM AND LANDMARKS OF ABDOMINO-PELVIC WALL. 797 symphysis pubis, down median line of abdominal wall, and formed by the union of the aponeuroses of the obliquus externus and interims and the trans- versalis, between the inner margins of the rectus muscles. Most distinct just above the umbilicus. Practically absent below semilunar fold of Douglas — because from that line downward the aponeuroses of external oblique, internal oblique, and transversalis all pass in front of rectus (the linea alba being formed by the junction of the anterior and posterior aponeuroses which form the sheath of the rectus). SURFACE FORM AND LANDMARKS OF THE ABDOMINO-PELVIC WALL. Linea alba — extending from apex of ensiform cartilage to symphysis pubis — broader above, narrower below the umbilicus — incomplete posteriorly (only) in its lower fourth, where the transversalis fascia replaces it. One or both borders of the recti are apt to be incised in operating below the umbilicus. Represents junction of inner borders of aponeuroses of the flat abdominal muscles. Linear semilunares — represent the line of division of the aponeuroses of the abdomen — correspond with the outer borders of the recti muscles — extend from lowest part of seventh costal cartilages to spines of os pubis, so curved that opposite the umbilicus they are 6 to 7.5 cm. (2^ to 3 inches) from the median line. Linea? transversa? — three tendinous intersections in the substance of the recti muscles, forming transverse furrows upon their surface — the upper one, opposite, or just below, the tip of the ensiform cartilage, — the middle one, between the tip of the ensiform cartilage and the umbilicus (about opposite the tenth costal cartilage), — the lower one, opposite the umbilicus, — (and sometimes a fourth one, below the umbilicus). Semilunar fold of Douglas — below which the posterior sheath of the recti is formed by transversalis fascia alone — about opposite the junction of the upper three-fourths and the lower fourth of the recti muscles — about 3 cm. (1 j inches) below the umbilicus. Abdominal furrow — extends from infrasternal fossa to, or a little below, the umbilicus, where it becomes lost. Its bottom is formed by the linea alba. Umbilicus — situated in the linea alba — always above the level of the highest points of the crests of the ilia (generally from 2 to 2.5 cm., f to 1 inch, above) — from 2 to 2.5 cm. (f to 1 inch) above and to the inner side of the bifurcation of the abdominal aorta — opposite the tip of the third lumbar spine, or the intervertebral disc between the third and fourth lumbar vertebrae. Spine of the os pubis — found by following up the tendon of the abductor longus — nearly on the same horizontal line as the upper edge of the great trochanter — gives attachment to the outer pillar of the external abdominal ring. Anterior superior iliac spine — the most prominent landmark of the lower antero-lateral abdominal wall. Crests of the iliac bones — continuations backward of the anterior superior iliac spines — found at the bottom of the iliac furrows, in the fleshy. Poupart's ligament — represented by a line curved slightly downward, be- tween the anterior superior iliac spine and the pubic spine. Iliac furrow — corresponds to the iliac crests — and formed by the attach- ment of the external oblique muscles to these crests. 798 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Sacral promontory — represented by a transverse line between the two an- terior superior iliac spines. Internal abdominal ring — situated about 1.3 cm. (\ inch) above the center of Poupart's ligament. External abdominal ring — situated just superior and external to the crest of the os pubis. Aponeuro-muscular limits of external oblique — the line representing the junction of the aponeurotic and muscular portions anteriorly, is one passing from the anterior superior iliac spine to the ninth costal cartilage (or one slightly anterior to these points) ; — The lower limit of the fleshy part of the external oblique is represented by a transverse line from a point on the iliac crest 2.5 to 5 cm. (1 to 2 inches) posterior to the anterior superior iliac spine, to a corresponding point on the opposite side. The fibers of the muscle and aponeurosis run about at a right angle with a line from the anterior superior iliac spine to the umbilicus. Aponeuro-muscular limit of the internal oblique — Above, by an oblique line from a point below the anterior end of the twelfth rib extending upward parallel with the costal arch, — Internally, by a line extending from the middle of Poupart's ligament upward and slightly outward. The upper line marks the upper limit of the muscular part. Aponeuro-muscular limit of the transversalis — the median limit of the fleshy part of the transversalis is nearer the middle line of the body above and below than at the center. Deep epigastric artery — runs from a point just internal to the middle of Poupart's ligament upward and inward to the inner aspect of the internal abdominal ring — thence still upward and inward to about midway between the pubes and umbilicus — and, passing beneath the semilunar fold of Douglas, runs between the sheath of the rectus and the muscle, finally piercing the muscle. Abdominal aorta — bifurcates about 2 cm. (f inch) below and to left of the umbilicus. Cceliac axis — situated from 10 to 12.5 cm. (about 4 to 5 inches) above the umbilicus. Superior mesenteric and suprarenal arteries — arise just below the cceliac axis. Renal arteries — arise about 1.2 cm. (J inch) below the superior mesenteric. Inferior mesenteric — arises about 2.5 cm. (1 inch) above the umbilicus. Peritoneal reflection from bladder on to lower abdominal wall — see under the Bladder, page 1093. Posterior superior spinous process of ilium — generally marked by a de- pression on a level with, and on either side of, the spinous process of second sacral vertebra. Spinous process of third sacral vertebra — generally to be felt below the second sacral vertebra, which last is nearly always detectable. Outer border of erector spinae — generally felt by deep palpation made to the outer side of and parallel with the vertebral column. See Surgical Land- marks of the Kidney, page 105 1. GENERAL SURGICAL CONSIDERATIONS. 799 GENERAL SURGICAL CONSIDERATIONS IN OPERATIONS UPON THE ABDOMINO-PELVIC CAVITY. Guide to the choice of special abdominal incisions — that incision should be chosen which most satisfactorily accomplishes the following (in order of importance) : — free access — avoidance of nerves — separation of muscular and aponeurotic fibers rather than their division — avoidance of vessels. Separation of the fibers of muscles and aponeuroses in their cleavage line should always be done in preference to a division of those fibers transversely or even obliquely. Blood-vessels, as compared with nerves, are of secondary importance — though the deep epigastric artery (the most important of the abdominal wall), and its anastomosis with the superior epigastric of the internal mam- mary, should be spared when possible. (See Fig. 575.) Better to cut through muscle than through aponeurosis (where cleavage separation is not possible) — as the former is more resistant to hernia (Hyrtl). Median Incisions — available for parts most accessible thereby. Through a median incision above the umbilicus; the stomach, liver, pancreas, and intestines may be reached. Through a median incision below the umbilicus; the intestines, bladder, ureters, uterus, and ovaries may be reached. Lateral Vertical Incisions — (along the outer border of the rectus) — not ad- visable ordinarily, as they divide the motor nerves to the rectus muscle, and thereby predispose to hernia. When done, generally done for the gall-bladder and ducts, duodenum, ascending and descending colons, spleen, and kidneys. Transverse or slightly Oblique Incisions — preferable for reaching those sites laterally placed. The incisions are more or less parallel with the nerves — the muscles are separated in their cleavage lines, where possible, and re- tracted — the nerves are recognized in the intermuscular planes (especially between internal oblique and transversalis) and held to one side. This incision may be used for the appendix, ascending and descending colons, kidneys, stomach, liver, gall-ducts, intestines, and ureters. Special Abdominal Incisions — see the different methods of abdominal section following. In the above summary of abdominal incisions no hard-and-fast rule exists as to their application — it merely being meant to mention some cases in which each category of incisions may be used — more specific data being given under the different viscera. All abdominal incisions should avoid, where possible, the anterior branches of the dorsal and lumbar nerves — which run obliquely from behind downward and forward between the muscular abdominal planes. The lower abdominal nerves run inwardly somewhat more transversely than do the fibers of the external oblique muscle and aponeurosis — so that in an oblique incision parallel with the fibers, one or more nerves may be encountered — but should be recognized, and can generally be spared. All vertical incisions of the abdominal wall, of any length, except those in the median line, cut one or more nerves. Vertical incisions over the center of the rectus divide the motor nerves to the inner half of the rectus muscle. Long cutaneous and fascial incisions are harmless — and are desirable if thereby free access to the site be gained. Longer incisions are necessary in the intramuscular separation than where the muscle-fibers are cut. Longer incisions are necessary in verv fat and thick abdominal walls. 800 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Hernia is more apt to follow incisions in the lower than in the upper part of the abdomen — and in the anterior rather than in the lateral and posterior portions. Linea alba is broader above than below the umbilicus, hence both inner rectal borders are more likely to be exposed by a median incision below than above the navel. If it be desired to identify the linea alba, after cutting through the superficial fascia, make a slightly oblique superficial incision over the median line — until the linea alba is recognized as a white fascial line or as a cord extending between the inner borders of the recti. Pyramidales (one or both) may overlap the median line and their fibers may be divided in a median abdominal section performed low down. Linea? transversa. 1 do not extend all the way through the rectus to its posterior aspect. Avoid cutting through the umbilicus, ordinarily. Also pass slightly to its left to avoid the round ligament. Incision may be made directly through the center of the umbilicus itself — inclining slightly to the left just above it, to avoid the round ligament. Kelly mentions, after cutting through the um- bilicus, that it is well, in closing the wound, to " split it on each side before putting in sutures, to convert the naturally thin surface between skin and peritoneum into a broader area for better approximation. " If the round ligament of the liver be cut during operation, no harm of consequence is done. It should be repaired with chromic gut suture. Peritoneum is more loosely connected with the linea alba above and below the umbilicus — and more closely in the neighborhood of the umbilicus. A transverse vessel in the subcutaneous fat, about 2 cm. (f inch) above the symphysis pubis, is mentioned by Kelly, which spouts arterial blood from one side and venous blood from the other when cut. He also mentions one or more veins ("celiotomy veins") lying just over the peritoneum in the lower third of the linea alba, running very nearly parallel with the linea alba and ending in the vesical plexus at the neck of the bladder. Empty the bladder before operating — and, if necessary, outline the bladder with a sound during operation. In all operations involving the pelvic and lower abdominal regions, the Trendelenburg position is desirable — causing a displacement of the intestines and viscera above away from the field of operation. It should be assumed just before the operation and continued during it — at an angle of from 18 to 45 degrees, the average being about 30 degrees. Intestines and viscera are best held out of the way by means of flat pads of sterilized non-absorbable cotton covered with non-absorbable gauze. As soon as the peritoneum is incised, and in order to make less likely the stripping of the peritoneum from the muscular wall, a silk ligature may be passed into either lip of the peritoneum, including the muscular wall, and used as a retractor, after being knotted. In incising the abdominal wall the peritoneum is at first only opened to a limited extent — the opening being increased after intra-abdominal examina- tion by means of a finger introduced. Avoid mistaking the transversalis fascia for subserous areolar tissue — and subserous areolar tissue for omentum — and especially intestine for peritoneum. In cleansing the abdomino-pelvic cavity, the natural fossae should receive especial attention — especially Douglas's cul-de-sac, rectal, duodenal, jejunal, renal, and caecal. Part or all of the omentum may be ligated off and removed. Suture-materials — For peritoneum; fine, plain catgut. For fascial and MEDIAN ABDOMINAL SECTION. 801 aponeurotic planes; chromic gut, kangaroo tendon, silk, silver wire. For muscles; chromic gut, plain gut, silk, kangaroo tendon. For subcutaneous tissue; plain or chromic gut, silk. For skin; silkworm-gut, silk (gut). Avoid including omentum and intestinal walls in the tightening of sutures. Just before tightening the last suture or two, press upon the abdominal wall to expel air or fluids. Quilt sutures may be used for the fascial planes of suturing. Relaxation sutures may be used — about 2.5 cm. (1 inch) apart, and from about 1.2 to 2 cm. (J to f inch) from the edges of the wound. In all kinds of suturing the process is aided by the use of wound -hooks, which render the edges straight, parallel, and tense, and lift away the abdomi- nal wall from the underlying intestines and viscera. Sutures are removed from the tenth to the fifteenth day. INSTRUMENTS USED IN OPERATIONS UPON THE ABDOMINO-PELVIC WALL. Scalpels; probe-pointed bistoury; scissors, pointed and blunt, straight and curved; forceps, dissecting and toothed; artery-clamp forceps; retractors, various; probe; grooved director; tenaculum; wound-hooks; sponge-holders; aneurism-needle ; needles, curved and straight ; needle-holder; ligature-car- riers; ligatures and sutures, plain and chromic gut, silk, silkworm-gut; gauze pads; drainage-tubes. MEDIAN ABDOMINAL SECTION. Description. — The opening of the abdominal or abdomino-pelvic cavity through an incision in the median line of the abdomino-pelvic wall. The site of this incision may be anywhere between the tip of the ensiform cartilage and the svmphysis pubis — dependent upon the object of the operation. Ab- dominal section, except in cases where done for exploration, is generally but the preliminary step preceding some special operation. Preparation. — Anterior abdominal wall shaved, especially along site of linea alba. Recesses of navel thoroughly cleansed. Bladder is emptied, especially if incision is to extend very low. Position. — Patient supine, at edge of table, with arm beneath back. Operation-site is walled off with sterilized towels. Surgeon on right, cutting from above downward. Assistant opposite. Landmarks. — Median line (linea alba). The center of the lower portion of the sternum, the umbilicus, and the suprapubic notch all are in the median straight line of the body in the normal abdomen. Incision. — Is placed directly in the median line — above, below, or in- cluding the umbilicus, as indicated. If more room be needed than planned in the original incision, it may be gotten by continuing the incision upward or downward. After incising to within 5 cm. (2 inches) of the bladder, great care should be exercised and the bladder protruded away from the line of incision by the fingers of the left hand — for, although empty, if adherent unusually high, it may be wounded. In passing the site of the umbilicus the incision may be carried directly through its center, with a slight tendency to the left just above the umbilicus, to avoid the suspensory ligament of the liver — or may pass, when quite near the upper or lower aspects of the um- bilicus, in a curved direction around it — the curve passing to the left, thereby 51 802 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. avoiding the round or suspensory ligament (the remains of the fetal umbilical vein) between the umbilical fissure of the liver and the umbilicus — which is, in consequence, left adherent to the right lip of the wound. (See Fig. 576 A and B.) I Fig- 5 76-— Incisions for Abdominal Sections: — A, Median Abdominal Section, supra-umbil- ical; B, Median Abdominal Section, infra-umbilical; C, Imaginary line from umbilicus to anterior superior iliac spine; D, Anterior superior iliac spine; E, Incision for McBurney's Intramuscular Abdominal Section ; F, Incision (skin portion) for Weir's prolongation of the antero-lateral Intra- muscular Abdominal Section; G, The Battle-Jalaguier-Kammerer Incision; H, Superficial trans- versely curved incision of Pfannenstiel's Median Inferior Abdominal Section ; I, Deep vertical inci- sion of Pfannenstiel's Median Inferior Abdominal Section ; J, Meyer's " Hockey-stick " Incision ; K, Fowler's Angular Incision; L, Oblique Subcostal Incision; M, Vischer's Lumbo-iliac Incision; N, Position of deep epigastric vessels. Operation. — (1) Having steadied and rendered tense the abdominal wall by left thumb and forefinger (or middle finger) on either side of the median line, the incision is made the full length of the predetermined distance, at one clean sweep of the knife, passing through skin and connective tissue. MEDIAN ABDOMINAL SECTION. 803 In very fat subjects the skin and thick fatty areolar tissue may be divided by two or three successive sweeps of the knife. Throughout the passage through the abdominal wall, all incisions should be made the full length of the original skin incision. (See Fig. 577.) (2) Clamp all bleeding vessels upon the lips of the wound, and subsequently tie with gut those likely to bleed. (3) Continuing to retract the lips of the wound with left thumb and Fig. 577- — Median Abdominal Section: — A, Skin; B, Fascia; C, C, Inner borders of the recti and pyramidales muscles; D, Transversalis fascia and subperitoneal areolar tissue; E, Peritoneum; F, F, Forceps grasping and lifting up the peritoneum; G, Knife cutting through the fold of peritoneum made prominent by traction. forefinger, incise the aponeurosis of the recti directly to the median line. While aiming to cut between the inner margins of the recti muscles, along their line of junction, without dividing their muscular fibers, it is found, especially when operating below the umbilicus, that frequently one or both recti, together with their sheaths, are cut, or the pyramidales, where the latter overlap inwardly. The linea alba is not as distinct below the umbilicus as above it. In the upper three-fourths of the anterior abdominal wall, 804 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. directly in the median line, after passing through the skin and fascia, one divides the aponeurosis between the inner borders of the recti; and just to one side of the median line, one divides the outer layer of the rectal sheath, the rectus muscle, the inner layer of the rectal sheath (which inner layer is formed by the aponeurosis of the transversalis and inner lamella of the internal oblique). In the lower one-fourth of the anterior abdominal wall, directly in the median line, after passing through skin and fascia, one divides the aponeurosis between the inner borders of the recti; and just to one side of the median line, one divides the outer layer of the rectal sheath, the pyrami- dalis, the rectus muscle, and comes directly down upon the transversalis fascia, which here alone forms the posterior layer of the rectal sheath. All bleeding vessels encountered in passing through the aponeurotic and muscular planes of the abdominal wall are clamped or tied. (4) The fascia transversalis is now exposed in the whole length of the wound, lying beneath the posterior layer of the rectal sheath in the upper three-fourths of the linea alba — and forming the posterior layer in the lower fourth — and is similarly incised. (5) The subperitoneal areolar tissue lies between the transversalis fascia and the peritoneum, and is generally divided together with the transversalis fascia. It may be quite thick in the very fatty. All clamped vessels are now tied before opening the peritoneum. (6) The peritoneum is now encountered lying directly beneath the subperitoneal areolar tissue — its position being anticipated by a recognition of the structures and layers through which the incisions have passed — and its actual presence is further recognized by its commoner characteristics, available in the majority of cases — its glistening, bluish, arborescent surface, and tough nature (which are less available iii adhesions and other abnormalities). Having controlled all bleeding, the peri- toneum, the final barrier to the peritoneal cavity, is now to be opened. L is important that the peritoneum should be isolated from all underlying structures, and especially the intestines, before being incised. This is best done by picking it up lightly with a pair of toothed forceps, in the form of a small fold. Thus grasping the peritoneum, the forceps should be shifted laterally and vertically to determine that they hold nothing in their teeth but peritoneum alone. Should intestines, omentum, or other structures have been grasped, in addition to the peritoneum, a new and lighter hold should be taken. While thus held in the grasp of the forceps — or, better still, between the grasps of two pairs of forceps, one held by the surgeon and the other by the assistant — the peritoneum is at first opened to a very limited extent, by making a carefully guarded scissors-cut or knife-incision, in the median line, near the tip of the single pair of forceps — or between the tips of the double pair. One limb of a pair of straight, blunt scissors, or a probe-pointed bistoury, is now introduced into this small opening, and the incision enlarged by cutting in the median line — introducing the left first and second fingers as a guide (formed by their palmar surface) as soon as sufficient opening has been made — after which the peritoneal opening is enlarged to correspond with the length of the rest of the wound, which should nowhere be funnel- shaped, but of equal depth throughout. (7) Having opened the peritoneum and widely retracted the lips of the abdominal wound, the special object for which the abdominal section was made is now carried out. (8) Having completed the object of the operation, and prior to closing the abdominal wound, the abdominal cavity should be cleansed of all fluid, by means of gauze mops or sponges — especially in the regions of Douglas's pouch, in the female, the iliac fossae, the renal and hepatic regions, and among the intestinal coils and recesses. Where the abdominal cavity has been extensivelv soiled, MEDIAN ABDOMINAL SECTION. 8o 5 especially bv tenacious fluids, a general flushing of the cavity may be indicated, until the irrigating fluid comes away clear, followed by light sponging with gauze mops. Having cleansed the cavity, stopped all bleeding by ligature, and counted all instruments and sponges, or pads, used in the oper- ation, the abdomen is ready for closure. (9) Several methods of su- turing the lips of the wound are in use. Preceding the adoption of any particular method, the underlying in- testines and viscera are protected and held out of the way by a broad pad of absorbable gauze. This pad also absorbs any suture-bleeding which may occur, and remains in situ until nearly the entire length of the deepest layer (or nearly all of the single layer, where but one layer of sutures is used) is placed and tied (if interrupted), or tightened (if continuous) — and is then withdrawn through one end. (a) In- terrupted sutures of all layers in a single tier: — Having armed a fully curved needle, held in a needle- holder, with fairly stout silk, the su- tures are passed from without into the abdominal cavity through one wound- lip, and thence outward through the opposite, passing through all of the constituents of each lip, in the follow- ing manner: While the lips of the wound are held under slight tension by wound-hooks at either end, the sur- geon grasps the entire thickness of one lip between his left thumb and finger and sees that all of the component structures of that lip are brought into line at the margin of the wound, so as to be within bite of the point of the needle. This is particularly neces- sary in the case of the peritoneum, which is often partially separated from the rest of the abdominal wall in the subperitoneal areolar plane and is thus apt not to be included in the suture. While thus holding the lip of one side, the needle is passed from without inward, passing through all the structures of the lip at the same distance from their free edge and entering the abdominal cavity. The opposite lip is similarly grasped and the needle similarly passed — but from within outward, emerging at a corresponding point on the side opposite to that entered. Each of the in- Fig. 578. — Tier-suturing of the Wound following Median Abdominal Section: — Continuous suture approxima- ting edges of peritoneum; — Interrupted sutures bringing together subserous areolar tissue, transversalis fascia, borders of recti muscles, and aponeuroses of the recti; — Continuous suture of superficial fascia, especially where this is thick; — Interrupted sutures of the skin. 806 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. terrupted sutures will penetrate the lips of the wound at about 0.5 cm. ( T \ inch) from their edge, and will be about 1 cm. (f inch) apart. When all are placed, the free ends of the sutures on either side should be grasped and drawn upon, to see if the lips come well and evenly together. While the lips are still under tension the sutures are tied, generally beginning at one or the other end. Just prior to completing the tying, the gauze pad over the intestines must be withdrawn. Superficial sutures may be put through the skin and connective tissue between the others, if necessary. Where much tension exists, deep relaxation sutures, placed about 1.2 cm. (^ inch) from the lips of the wound, and about 2 cm. (f inch) apart, may be placed. Chro- mic gut may be similarly used. Silkworm-gut may be used, but requires especial care in tying the knot, (b) Tier-suturing: — First Tier — peritoneum. (To shut off the abdominal cavity.) A buried, continuous (may be inter- rupted), fine, chromic catgut suture, passed upon a straight needle, at a distance of about 0.3 cm. (£ inch) from the edge. Second Tier — aponeuroses of rectal sheath, including transversalis fascia and subperitoneal areolar tissue, and margins of recti where they have been cut. (Chief suture of strength.) Interrupted, buried, chromic catgut suture, introduced upon a curved needle, about 0.5 cm. (f^- inch) from the edge and about 1 cm. (f inch) apart. Third Tier — subcutaneous areolar tissue, that is, all tissues between the outer layer of the rectal sheath and the skin. (To obliterate dead spaces.) A continuous, buried, chromic catgut suture, introduced upon a straight needle. Fourth Tier — skin. (To shut off outside contamination.) A continuous, subcuticular silk suture passing through the tough corion, intro- duced upon Keith's long, straight abdominal needle. (See Fig. 578.) Inter- rupted silkworm-gut maybe used for the fourth tier (though stitch-abscesses are more frequent) . Or strong, fine catgut may be used — and need not be removed. Interrupted silk sutures are often used. The tier method of suturing is prefer- able to the single- layer suture. Often but three tiers are used — Continuous chromic suture of peritoneum; — Interrupted chromic gut suture of subperi- toneal and transversalis fascial, rectal aponeuroses (or recti themselves) en masse; — Interrupted silkworm-gut, or silk suture, of skin and subcutaneous fascia. Sometimes only two tiers are used — Continuous chromic gut of peri- toneum; — and Interrupted silk or chromic gut of the remaining tissues. (10) No drainage is ordinarily used. Several layers of gauze and cotton are placed over the wound — and one of the various forms of abdominal binders applied. Complications Occurring during Abdominal Section. — (a) Adhe- sions; — (1) Adhesions of the intestines, viscera, or omentum with each other, or with the parietal wall, may be encountered. (2) When, in the presence of adhesions, there is doubt as to whether the peritoneal cavity has been reached, pick up and roll the tissues between the finger-tips, thus judging of their nature. (3) The general principle to be adopted in the management of adhesions is to find the plane of cleavage in the abnormal union — and, following it up, separate it as carefully as possible by fingers or blunt dissection. Where this is impossible, areas, dependent upon their nature, have to be ligated or clamped and cut, with the sacrifice of some portion of the least important structure. Ligatures are best made with plain gut for small adhe- sions, and chromic gut for large adhesions. While slighter adhesions may be mechanically separated, denser ones are to be clamped or ligated, en masse or piecemeal, and cut. (4) Intestinal Adhesions. Thin membranous adhe- sions may be stripped apart. Dense, organized adhesions must be separated by careful dissection, requiring especial care, as no part of the entire thickness ANTEROLATERAL ABDOMINAL SECTION. 807 of the adhesion can be taken from the one and left as a patch on the other, as may be done in some adhesions in other localities. (5) Omental Adhesions. These must be stripped off, or ligated and excised. The entire omentum may be ligated and excised, if necessary. Omental adhesions are ligated on their proximal side — by pushing forceps through the free spaces and drawing back the gut ligature and tying — and repeating the step, always tying over the free edge left by the preceding ligature. See Omentum, page 830. (6) Visceral Adhesions: — Where separation cannot be accomplished — - and where the step is possible, a layer, or the entire thickness, of the less important structure is left attached to the more important one — after ligaturing and blunt dissection or incision. The serous covering of the viscera should be preserved wherever possible — thereby aiding in the preservation of nutrition and the avoidance of adhesions and sloughing. Such denuded surfaces may have omental grafts applied. See Omentum, page 830. In the median ab- dominal section it is to be remembered that an adherent bladder, though empty, may not be able to descend out of the way of the incision, — and thereby may not escape injury unless specially guarded. For further consideration of adhesions, see the Peritoneum, page 820. Also see Fig. 586. (B) Hemor- rhage : — Tie, where possible, all vessels prior to their division, or immediately afterward — as encountered in the steps of the operation after entering the abdominal cavity. Vessels which have been cut without recognition, should be immediately clamped and then tied. In the abdominal incision, prior to enter- ing the cavity, the vessels are clamped as cut and tied before opening the peri- toneal cavity. Gauze pressure and hot douching often control bleeding from indefinite sources. (C) Irrigation : — Unless the abdominal cavity be contami- nated or soiled, or unless much hemorrhage have occurred, irrigation is gen- erally not indicated. If indicated, hot normal salt solution is used. Localized infection can often be treated by localized flushing and wiping — general infection by general flushing and drying with gauze mops. (D) Drainage : — Not indicated in uncomplicated cases. Indicated in (a) Localized and general infection (in the former, generally — in the latter always), — (b) After intestinal or hollow-visceral suturing, where there is uncertainty of efficiency of the suturing or integrity of the intestine or viscus, — (c) In persistent hemor- rhage. Nature of drainage materials, — gauze, rubber tubing, glass tubing, strands of gut, silk, or horsehair. Where drainage is used, the wound should have the suturing placed throughout, and just as though the entire wound were to be closed — and those at first left untied for the passage of the drain, should be tightened and tied when all occasion for drainage has ceased. Comment. — See under General Surgical Considerations, page 799. ANTERO-LATERAL ABDOMINAL SECTION BY McBURNEY'S INTRAMUSCULAR ("GRIDIRON") INCISION. Description. — Having divided skin and fascia, the various musculo- aponeurotic planes of the abdominal wall are divided in the order encountered and in a line with the muscular and tendinous fibers composing those planes — ■ thus avoiding the division of any important nerves; the transverse division of any of the component muscular fibers; the retraction of transversely cut mus- cular and tendinous fibers — and, therefore, avoiding the consequent paralysis of parts supplied by severed nerves, and weakening of cut muscles. While McBurney's operation is chiefly applicable to the antero-lateral abdominal region (where the external and internal oblique and the transver- 8o8 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. salis muscles are all present), the principle of intramuscular separation should be applied to all sites of the abdominal wall where it is possible to do so. The operation is principally resorted to for the removal of the appendix vermiformis, especially in the quiescent stage of appendicitis Preparation.— Site of incision to be shaved. Position.— As in Median Abdominal Section. Landmarks. — Where the operation is done in connection with Appendic- i Fig. 579. — Anterolateral Abdominal Section by McBurney's Intramuscular ("Gridiron") Incision: — A, A, Retracting external oblique, the fibers of which have been separated in the line of their cleavage; B, B, Retracting internal oblique and transversalis, split in the lines of their cleavage. Beneath these an incised wound in the peritoneum is seen, through which appear coils of intestine. ectomy, McBurney's point is located, which is a point on an imaginary line extending from the anterior superior iliac spine to the umbilicus, at a distance of 3.8 cm. (ij inches) internal to the anterior superior iliac spine. Incision. — In cases of Appendicectomy, the incision commences about 2.5 cm. (1 inch) above the imaginary line just mentioned, and passes obliquelv downward and inward in the direction of the fibers of the external oblique muscle and aponeurosis — crossing the above line at McBurney's point — and ending about the same distance below as above it. The length of the incision AXTERO-LATERAL ABDOMINAL SECTION. 809 may be greater or less than the above, according to the space required. A free skin incision greatly aids the muscular retraction. (See Fig. 576, E.) Operation. — (I) Having incised the skin and fascia in the above line (which will correspond with the cleavage line of the skin), and having con- trolled hemorrhage and retracted the lips of the wound, the muscular and tendinous fibers of the external oblique will be exposed. (See Fig. 579.) (2) Incise the external oblique, with a sharp scalpel, directly in a line with its muscular fibers above, and their tendinous continuation in the aponeurosis below — continuing the separation with scalpel or scissors, incising between the fibers without severing them. The two lips of the incised external oblique are drawn respectively upward and inward, and downward and outward — thus exposing the intermuscular fascia between external and internal oblique. (3) The sheath and fibers of the internal oblique (the muscle being here quite thick) are now similarly separated by scalpel, scissors, or blunt dissection, in the line of their cleavage (which is nearly at a right angle to the cleavage line of the fibers of the external oblique), the center of the separation of the fibers being about opposite the anterior superior iliac spine. The lips of the internal oblique are now retracted respectively upward and outward, and downward and inward — thus exposing the intermuscular fascia between in- ternal oblique and transversalis. Guard with especial care all nerves lying in this intermuscular plane. (4) The fibers of the transversalis, which, for practical purposes, run very nearly in the same direction as those of the internal oblique, are now similarly separated in their cleavage line. The lips of the transversalis may be separately retracted upward and downward, but are generally included in the grasp of the same retractors which retract the internal oblique. The transversalis fascia at the bottom of the wound is thus exposed for an inch or more. (5) The transversalis fascia is grasped with forceps and divided in the line of the transversalis muscle (transversely) — when the subserous areolar tissue and peritoneum will be exposed. (6) The peritoneum is grasped with two delicate-toothed forceps, manipulated as in the median abdominal section, and divided with scissors to a limited and guarded extent. One blade of the scissors is then carefully introduced within the abdominal cavity and the opening enlarged toward the median line and the anterior superior iliac spine. The subperitoneal areolar' tissue, trans- versalis fascia, and peritoneum may be simultaneously incised — but it is better to incise down to and recognize the peritoneum, and then incise the peritoneum separately and alone. (7) The special object of the operation is now accom- plished. The wound is then ready for closure. (8) Separate continuous suturing of the following layers with catgut is made ; — (a) peritoneum, sub- serous areolar tissue, and transversalis fascia — (b) transversalis — (c) internal oblique — (d) external oblique — (e) subcutaneous fascia, especially where thick — (f) and the skin is closed by subcuticular silk suture, or interrupted silkworm-gut. The subcutaneous areolar tissue and skin are often included in one tier, where interrupted suturing of these two structures is done. All parts are thus brought together along their original cleavage lines and accu- rately approximated. Comment. — (I) But small part of the muscular portion of the external oblique is exposed. (2) The twelfth intercostal nerve, and, when the incision is long, the iliohypogastric nerve are in danger (as they run somewhat more transversely than the fibers of the external oblique) and should be retracted out of danger. (3) This is the best method of entering the abdominal cavity, where applicable. 8io OPERATIONS UPON THE ABDOMINO-PELVIC REGION. ANTERO-LATERAL ABDOMINAL SECTION BY THE HARRINGTON-WEIR PROLONGATION OF THE ANTERO-LATERAL INTRA- MUSCULAR INCISION THROUGH THE RECTAL SHEATH, WITH TEMPORARY DISPLACEMENT OF THE RECTUS. Description. — Having entered the abdominal cavity by the intramuscular operation just described, an extension or enlargement of that incision, with a fuller exposure of the abdominal, pelvic and iliac cavities, may be obtained by continuing that incision to the outer border of the rectal sheath, tearing off the " denuded fascia of the external oblique muscle," incising transversely the remaining structures forming the anterior layer of the rectal sheath and displacing the rectus muscle toward the median line, followed by the transverse division of the posterior rectal sheath. While the operation is chiefly appli- cable to the region of the appendix, it may be used on either side of the abdomino-pelvic region, and also in the region of the liver and gall -bladder where additional room is necessary. It will be here described in connection with appendicectomy. Preparation — Position. — As in McBurney's Intramuscular Operation (page 808). Landmarks. — McBurney's point (see McBurney's Operation, Landmarks, page 808) ; linea alba; semilunar line. Incision. — Begins as an ordinary McBurney intramuscular incision — and, after prolonging the incision to the outer border of the rectus, and after Fig.580.— Antero-lateral Abdominal Section by Weir's Method :— A, External oblique muscle; B, External oblique being separated from the anterior layer of the rectal sheath ; C, Internal oblique muscle ; D, Transversalis muscle; E, Transversalis fascia, subperitoneal areolar tissue, and peritoneum; F, Anterior layer of rectal sheath; G, Posterior layer of rectal sheath; H, Rectus muscle ; I, Deep epigastric vessels ; J, Branch of deep circumflex iliac, or of one of lumbar arteries; K, Twelfth intercostal, or iliohypogastric nerve ; L, A superficial vessel ; M, Coils of small intestine. tearing off and retracting inward the fascia of the external oblique from the sheath of the rectus, the incision is continued across the anterior layer of the sheath of the rectus in a prolongation of the same line with the intra- ANTERIOR ABDOMINAL SECTION THROUGH RECTAL SHEATH. 8ll muscular opening into the peritoneum (or may be continued transversely across) — followed by the inward retraction of the rectus muscle and trans- verse division of the posterior rectal sheath. (See Fig. 576, F.) Operation. — (1) Proceed exactly as in the McBurney operation, up to the point of entering the abdominal cavity — whether operating upon the right or left side. (2) Continue the separation of the fibers of the external oblique muscle and aponeurosis, in the line of their cleavage, right up to the linea semilunaris (outer border of the rectal sheath). Also continue the separation of the fibers of the internal oblique and transversalis until the inner aspect of the common opening is brought up to the outer margin of the rectal sheath. (See Fig. 580.) (3) The already denuded fascia of the external oblique is now separated by blunt dissection from the anterior layer of the sheath of the rectus, from the linea semilunaris inward to the median line — retracting or dividing the overlying structures where necessary. (4) While the denuded and displaced fascia of the external oblique is held retracted, the remaining structures forming the anterior layer of the rectal sheath (aponeuroses of in- ternal oblique and transversalis) are divided transversely, or slightly obliquelv, inward, in a line continuing the external oblique intramuscular incision — or, if the abdominal cavity have been already opened and more room be needed, in a line with the intramuscular opening into the peritoneum. (5) Separate the outer border of the rectus from its sheath and retract the muscle inward as far as necessary, lifting it away from the posterior layer of the sheath. (6) Doublv ligate and divide the deep epigastric artery and veins lying upon the transver- salis fascia — unless they may be temporarily displaced by retraction. (7) Incise transversely the posterior layer of the sheath of the rectus (which, in the lower part of the abdomen, consists of transversalis fascia alone) and peritoneum, both in the same line as the incision through the anterior laver — thus opening up the abdomino-pelvic cavity toward the median line. (8) The abdominal, pelvic, and iliac cavities are thus exposed and the object of the operation accomplished. (9) The suturing of the general wound is done as in the McBurney operation (page 809, paragraph 8). In closing the portion involving the rectal sheath, the posterior layer of the sheath is sutured with continued catgut — the rectus muscle is then allowed to fall back into place — and the anterior layer of the sheath is similarly closed. Comment. — Additional exposure is secured by the Trendelenburg posi- tion, or by sand-bags under the hips. This is the best one of the modifications of the intramuscular operation, for giving increased room. ANTERIOR ABDOMINAL SECTION THROUGH THE RECTAL SHEATH, WITH TEMPORARY DISPLACEMENT OF THE RECTUS, BV THE BATTLE-JALAGUIER-KAMMERER METHOD. Description . — Consists, after a vertical incision of skin and fascia, in the vertical division of the anterior layer of the sheath of the rectus, with the retraction of the entire rectus inward — followed by the vertical division of the posterior layer of the rectal sheath, somewhat nearer the median line, together with the subserous areolar tissue and peritoneum. At the end of the operation the rectus is allowed to resume its normal position, and the divided rectal sheath is repaired. Chiefly used in the quiescent stage of appen- dicitis — and also applicable in some operations upon the stomach, liver, and gall-bladder. Preparation— Position.— As in Median Abdominal Section. 8l2 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Landmarks. — Linea alba and linea semilunaris, forming, respectively, the inner and outer boundaries of the rectal sheath. Incision. — Vertical incision about 7.5 cm. (3 inches) long, and calculated, as nearly as possible, to fall from 1 to 2.5 cm. (f to 1 inch) internal to the outer border of the rectus. (See Fig. 576, G.) Operation. — (1) Incise skin and fascia in the above line — clamp vessels — retract overlying tissues — and expose the rectal sheath. (2) Incise the ante- rior layer of the sheath of the rectus vertically, at a distance of from 1 to 2.5 cm. (f to 1 inch) internal to its outer border. (See Fig. 581.) (3) Retract outward the outer portion of the divided rectal sheath, so as to expose the Fig. 5S1. — Abdominal Section by the Battle-Jalaguier-Kammerer Incision: — A, A, Anterior layer of rectal sheath; B, Posterior layer of rectal sheath; C, Incision through anterior layer of rectal sheath; D, Left rectus muscle displaced toward median line; E, Incision through posterior layer of rectal sheath (further toward median line than incision through outer rectal sheath) exposing coils of intestine; F, Transverse fascia, subperitoneal areolar tissue, and peri- toneum; G, A superficial vessel. The operation is here shown on the left side. outer border of the rectus muscle — and then retract the intact rectus muscle in- ward (Fig. 582). (4) Incise the posterior layer of the rectal sheath somewhat nearer the median line than in the case of the anterior layer. Or, in operating in the neighborhood of the deep epigastric artery, in order to avoid this vessel, the incision in the posterior layer may be made somewhat further outward than the incision through the anterior layer. The artery may, however, be readily ligated if in the way. (5) In the same line as the division of the posterior layer of the rectal sheath, incise vertically the subjacent tissues — which will consist of transversalis fascia, subperitoneal areolar tissue, and peritoneum, except below the semilunar fold of Douglas, below which line ANTERIOR ABDOMINAL SECTION THROUGH RECTAL SHEATH. 813 the posterior layer of the sheath itself consists of transversalis fascia alone, and the subjacent tissues consist of subperitoneal areolar tissue and perito- neum. (6) Having accomplished the object of the operation, the structures are to be sutured in the following layers, — peritoneum, subserous areolar tissue, and posterior layer of the rectal sheath, with interrupted or continuous catgut suture; — anterior layer of rectal sheath with interrupted gut sutures, which also pass partly through the rectus muscle (the displaced border of the rectus should also be sutured to the outer margin of the rectal sheath) ; — the fascia, with gut — and the skin with subcuticular silk, or interrupted silk- worm-gut sutures (or skin and fascia may be sutured together). Fig. 582. — " Overlapping " Closure of Exposltre of Abdominal Cavity through the Rectal Sheath: — Line of continuous sutures through peritoneum, subserous areolar tissue, and transversalis fascia; Interrupted mattress sutures passing through posterior layer of outer portion of rectal sheath, on the left, and posterior layer of rectal sheath and outer aspect of rectus, on the right; Mattress suture passing through inner aspect of anterior layer of rectal sheath, on the right, and the outer aspect of the anterior layer, on the left; Interrupted skin sutures. Comment. — The chief objection to the operation is the division of the nerves corresponding with the incision, and consequent atrophy and paresis of the rectus. The nerves severed in the site where the operation is usually 814 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. performed (for appendicitis) being generally the tenth, eleventh, and twelfth dorsal, with or without the iliohypogastric. The deep epigastric artery is usually divided, although this is of no great consequence. A lateral exposure of the abdominal contents may be secured by adding to the regular Battle-Jalaguier-Kammerer form of exposure the features common to the Fowler operation and to the Weir modification of the McBurney oper- ation. The sheath of the rectus is exposed in the usual manner (Fig. 583). Fig. 583. — Fowler's Method of Intramuscular Transverse Exposure of the Abdominal Cavity: — A, Retracting skin and fatty areolar tissue from external oblique; B, Retracting inner lip of incision through outer aspect of rectal sheath. (Modified from Fowler.) The rectus is then retracted inward (Fig. 584) — after which the fibers of the external oblique are separated in their cleavage line (Fig. 584) — the internal oblique is retracted or divided — the transversalis fibers are separated in the line of their cleavage — and the transversalis fascia, subserous areolar tissue, and peritoneum are incised at a right angle to the line of the rectus — and the poste- rior layer of the rectal sheath is incised transversely, after careful retraction of the rectus muscle and epigastric vessels. At the close of the operation the aponeurotic lines of division are closed in the lines of their separation. MEDIAN INFERIOR ABDOMINAL SECTION. >I5 Fig. 584. — Same as Above: — A, Inward retraction of rectal sheath; B, Inward retraction of rectus; C, Separation of fibers of external oblique in cleavage line. The internal oblique is shown beneath the fibers of the external oblique — as is also the transverse incision through the peritoneum and posterior layer of the rectal sheath. (Modified from Fowler.) MEDIAN INFERIOR ABDOMINAL SECTION BY PFANNENSTIEL'S SUPERFICIAL TRANSVERSELY CURVED AND DEEP VERTICAL INCISIONS. Description . — A method of entering the peritoneal cavity in the lower median abdominal region — by means of a superficial curved incision, with downward convexity, just above the inner halves of Poupart's ligaments and the symphysis., with an upward retraction of the outlined flap of skin, fascia, and anterior rectal sheath — followed by a deep vertical division in the median line. A median scar is avoided, and the transverse scar lies partly hidden by the hair-line. Hernia is supposed to be less apt to follow. Chiefly used for limited operations upon the tubes, ovaries, uterus, bladder, and pelvic cavity. Preparation — Position. — As for Median Abdominal Section. Landmarks. — Linea alba; position of deep epigastric arteries; Poupart's ligaments; symphysis pubis. Incision. — (1) Superficial transversely curved incision, with downward convexity, beginning and ending over the deep epigastric arteries, passing just above the inner halves of Poupart's ligaments and the symphysis pubis, 8i6 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. in the hair-line; — (2) Deep vertical incision, after the anterior layer of the rectal sheath has been retracted, passes between the inner borders of the recti muscles, in the median line, from just above the symphysis pubis upward. (See Fig. 576, I and H.) Operation. — (1) Incise skin, fascia, and anterior layer of rectal sheath in the superficial transversely curved incision. Clamp vessels. Dissect and retract the curved flap thus formed upward, including the anterior rectal Fig.jS^. — Abdominal Section by Pfannenstiel's Superficial Transversely Curved and Deep Vertical Incisions : — A, Flap, with anterior layer of rectal sheath adherent, turned upward ; B, Linea semilunaris; C, Rectus muscle; D, Pyramidalis muscle; E, Transversalis fascia, subperi- toneal areolar tissue, and peritoneum; F, Coils of small intestine; G, Uterus; H, Bladder; I, A superficial vessel. sheath, thereby exposing the bared recti muscles. (See Fig. 585.) (2) Incise between the inner borders of the recti and pyramidales muscles, just as in median abdominal section, until the peritoneal cavity is reached, which is entered just as in that operation. (3) Having accomplished the object of the operation, the wound is sutured in the following manner; — the posterior laver of the rectal sheath is closed with continued catsrut suture, including INFERIOR ANTEROLATERAL ABDOMINAL SECTION. 817 the edges of the peritoneum and subserous areolar tissue — the inner margins of the recti are next sutured with gut — the cut edge of the transversely divided anterior rectal sheath is similarly sutured with gut — and the skin wound is closed with silk, or silkworm-gut. Comment. — Care is necessary to avoid wounding the bladder, which should be empty at the time of operation. INFERIOR ANTERO-LATERAL ABDOMINAL SECTION BY MEYER'S " HOCKEV-STICK " IN'CISION. Description. — A method of entering the lower antero -lateral abdominal cavity, partly by intramuscular separation, partly by transverse division of muscle, by means of an incision shaped somewhat like a "hockey-stick." Resorted to for the purpose of gaining a greater degree of exposure of the abdomino pelvic cavity than afforded by the simple McBurney incision. Used by its originator for some complicated cases of appendicitis. Preparation — Position. — As in McBurney's Operation. Landmarks. — Imaginary line from umbilicus to anterior superior iliac spine, with the location of McBurney's point (see McBurney's operation. Landmarks, page 808); Poupart's ligament; outer border of the rectus; deep epigastric artery. Incision. — (1) Primary Incision, — begins about 1.3 cm. (\ inch) above an imaginary line from the umbilicus to the anterior spine of the ilium, at a point 2 cm. (J inch) to the inner side of the anterior superior iliac spine (that is, midway between McBurney's point and the anterior superior iliac spine), and passes thence in a direct line toward the point where the femoral artery runs under Poupart's ligament, ending about 1.3 to 2 cm. (h to f inch) above Poupart's ligament. (2) Secondary incision, which is only made sub- sequently, for the purpose of gaining more room, passes upward and inward, or curves directly inward, from the lower end of the primary incision toward the outer border of the rectus. (See Fig. 576, J.) Operation. — (1) Incise skin and fascia in the line of the primary inci- sion — clamp vessels — and retract margins of wound. (2) Split the fibers of the external oblique muscle and its aponeurosis in their cleavage line. (3) Divide the internal oblique and transversalis in the same line as made by the separation of the fibers of the external oblique — which will cut the fibers of the internal oblique transversely and those of the transversalis obliquely. (4) Incise the transversalis fascia, subserous areolar tissue, and peritoneum transversely. (5) If more room be now necessary, the left index is passed into the abdominal cavity to the deep epigastric artery, as a guide and pro- tector, and the lower end of the incision is extended upward and inward, or directly inward, to the outer border of the rectus muscle. (6) If still more room be needed, the rectus muscle itself can be displaced inward and the peritoneum incised beneath it. (7) The object of the operation is now accom- plished. The wound is then closed by tier-suturing. Comment. — The deep epigastric vessels are doubly ligated and divided, if necessary. 52 OPERATIONS UPON THE ABDOMINO-PELVTC REGION. INFERIOR ANTERO-LATERAL ABDOMINAL SECTION PA' FOWLER'S ANGULAR INCISION. Description. — Founded, in part of its application, upon the same principle as McBurney's intramuscular operation — and planned to give freer access to the contents of the ileo-caecal region, and especially to the base of the appendix. Especially intended by its author for cases of appendicitis in which the process is still limited to the appendix. Preparation — Position. — As in McBurney's operation. Landmarks. — Anterior superior iliac spine; outer border of the rectus. Incision. — Begins at the upper border of the anterior superior iliac spine — runs horizontally inward to the outer border of the rectus muscle — curves thence downward and runs parallel with the outer border of the rectus for 5 to 7.5 cm. (2 to 3I inches). (See Fig. 576, K.) Operation. — (1) Incise skin and fascia in the above line — clamp vessels — and turn downward and outward this triangular flap of skin and fascia, exposing the aponeurosis of the external oblique beneath. Place retractors at the center of the transverse incision and at the lower angle of the wound, and retract in the cleavage line of the external oblique. (2) Incise the ex- ternal oblique muscle and aponeurosis in the cleavage line of their fibers, and retract in the direction opposite to their cleavage line. (3) Expose and open the sheath of the rectus and retract the rectus muscle, with the deep epigastric vessels, strongly toward the linea alba — while retracting the aponeu- rosis to the outer side. (4) Incise transversely, in line with the horizontal part of the skin incision, the internal oblique and transversalis muscles, transversalis fascia, subserous areolar tissue and peritoneum, all as one structure — beginning at the outer margin of the retracted rectus. And retract the deep lips of the wound, exposing the abdominal cavity. (5) The special object of the operation is now accomplished. (6) At the completion of the operation, the structures are sutured in the following order; — peritoneum, subserous areolar tissue, transversalis fascia, transversalis and internal oblique muscles are all sutured in one layer, with continuous chromic gut; — the rectus is allowed to fall back into place; — the external oblique aponeurosis and muscle are sutured with continuous kangaroo tendon, in which layer the rectal sheath is also included ; — and the skin is closed by a subcuticular silk suture (and the fascia separately with gut, if it be very thick). Comment. — In applying the above operation to cases of appendicitis, Fowler considers the base of the appendix to be most generally found at the intersection of a transverse line between the anterior superior iliac spines with a vertical line running midway between the median line of the body and the anterior superior iliac spine. This operation gives no more room than Weir's — and the latter operation does not divide muscle-fibers transversely. SUPERIOR ANTERO-LATERAL ABDOMINAL SECTION BY OBLIQUE SUBCOSTAL IN'CISION. Description. — A method of entering the abdominal cavity parallel with and a short distance below the costo-chondral arches. Generally resorted to for the exposure of the subhepatic, gastric, and splenic regions. LATERAL ABDOMINAL SECTION. 819 Preparation — Position. — As in Median Abdominal Section. Landmarks. — Costo-chondral arches. Incision. — Generally parallel with and about 2.5 cm. (1 inch) below the costo-chondral arch of one or the other side — with the center of the incision over the object sought. (See Fig. 576, L.) Operation. — (I) Incise skin, and fascia — clamp vessels — retract lips of wound. (2) Incise external oblique, which will be aponeurotic above and muscular below — the incision crossing its fibers about at a right angle. (3) Separate the fibers of the internal oblique in their cleavage line — which may be done external to the outer border of the rectal sheath. (4) Incise the transversalis parallel with the costo-chondral border, which will be perpen- dicular to their fibers. (5) Incise the transversalis fascia, subserous areolar tissue, and peritoneum in the same line with the preceding incision — and thus enter the peritoneal cavity. (6) Having completed the object of the opera- tion — suture the structures in the following layers, with buried catgut; — peri- toneum, subserous areolar tissue, transversalis fascia; — transversalis and in- ternal oblique muscles; — external oblique ; — and fascia and skin with silk or silkworm-gut. Comment. — This incision corresponds with the cleavage line of the skin — and especially corresponds with the course of the seventh and eighth inter- costal nerves, which run upward and are thereby uninjured. The incision can be prolonged up to the rectus muscle followed by a transverse incision of its anterior sheath, with inward retraction of the intact muscle — and a similar transverse division of its posterior sheath — the sheath being sutured at the end of the operation. For the application of this incision, see operations upon the stomach. EXPOSURE OF HYPOCHONDRIAC REGIONS BY CHONDROPLASTIC RESECTION OF CHEST-WALL BY SUBCOSTAL INCISION AXD TEMPORARY DIVISION OF SEVENTH, EIGHTH, NINTH, AND TENTH COSTAL CARTILAGES. Owing to the rigidity of the chest-wall it is difficult to satisfactorily expose the dome of the diaphragm, the upper surface of the liver, the lower end of the esophagus, and the cardiac end of the stomach and the spleen. By the tem- porary resection of the costal arch of either the right or left side, as indicated, these structures are much more readily brought into the operative field. The details of this operation have been given under Thoracic Operations, page 734- LATERAL ABDOMINAL SECTION BY YISCHER/S LLMBO-ILIAC INCISION. Description. — Consists in the separation of the muscular and tendinous fibers of the abdominal muscles of the lumbo-iliac region, just above the center of the iliac crest, in their cleavage lines, without transverse division of muscle-fibers, or harm to abdominal nerves — and exposing the operation- site by retraction of the separated muscles. Applicable to exposure of struc- tures in the above region, and especially for suppurating cases of appendi- citis — being advantageous because of the ability to extend the opening from either end of the original incision. 820 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Preparation. — As in McBurney's operation. Position. — Patient partly turned toward opposite side, with pad placed beneath involved side, to render site of operation prominent. Surgeon on side of operation. Assistant opposite to surgeon. Landmarks. — Crest of ilium; anterior superior iliac spine; Poupart's ligament. Incision. — Runs 2.5 cm. (1 inch) above and parallel with the crest of the ilium, beginning at the outer border of the external oblique (which corre- sponds with about the center of the iliac crest) and ending opposite the anterior superior iliac spine — or may extend forward parallel with the outer part of Poupart's ligament. (See Fig. 576, M.) Operation. — (1) Incise skin and fascia in the above line — clamp vessels — retract lips of wound, exposing the external oblique. (2) The fibers of the external oblique are now separated in their cleavage line. As the fibers of the muscular portion run somewhat more vertically here than the line of the skin incision, a good, free length of separation is necessary, with firm retraction inward and upward, and outward and downward, respectively, in order to expose the internal oblique. (3) The fibers of the internal oblique, which run upward and inward, are similarly separated in their cleavage line, and retracted upward and backward, and downward and forward; — care- fully guarding all important nerve structures between the internal oblique and transversalis, which latter muscle is now exposed. (4) The fibers of the transversalis, running transversely inward, practically in the same line with the internal oblique, are now separated in like manner in their cleavage line, and retracted upward and downward, exposing the transversalis fascia. (5) The transversalis fascia, subserous areolar tissue, and peritoneum are divided vertically — and the peritoneal cavity entered. (6) Upon completion of the operation, the structures are sutured as in McBurney's operation (page 809). Comment. — More room may be gotten anteriorly, by continuing the separation of the aponeurotic fibers of the external oblique parallel with Poupart's ligament, in the line of the original incision, — and posteriorly and superiorly, by continuing the separation of the muscular fibers and lumbar aponeurosis. A branch of the deep circumflex iliac artery, between trans- versalis and internal oblique, is clamped and divided. Note. — Other incisions are given under the different abdomino-peivic viscera. Closure of the abdominal wall by " overlapping " methods is espe- cially shown under Operations for Hernia, pages 1163 to 1183. II. THE PERITONEUM. SURGICAL ANATOMY. Course of the Peritoneum Forming the Greater Sac — In Longitudinal Section. — Passing down from the umbilicus, the peritoneum lines the anterior abdominal wall — covers the urachus and obliterated hypogastric arteries — passes onto the bladder, from its upper aspect to the trigone — is reflected onto the anterior and upper part of the lateral aspects of the rectum, in the male, forming the recto-vesical pouch. In the female, the reflection is from the bladder onto the uterus (utero-vesical fold) — extending thence over the upper portion of the posterior vaginal wall — and thence to the rectum (recto- vaginal pouch). From the rectum, the sigmoid flexure of the colon is entirely covered (sigmoid mesocolon) — the ascending and descending colons being SURGICAL ANATOMY OF THE PERITONEUM. 821 covered, generally, only anteriorly and laterally — and passing from the spine downward, the peritoneum covers the small intestines, forming the lower leaf of the mesentery — and thence back again, completing the investment of the small bowel, forming the upper leaf of the mesentery — and passes backward over the transverse portion of the duodenum to the pancreas — thence forward to form the inferior layer of the transverse mesocolon — covers the inferior and part of the anterior aspect of the transverse colon — thence runs downward to form the posterior layer of the great omentum — returning to form the anterior layer of the great omentum — thence to the stomach, covering its antero-superior aspect — thence to the under surface of the liver, forming the anterior layer of the lesser or gastro-hepatic omentum — thence covers the inferior surface of the liver, from the transverse fissure to its anterior border — whence it is reflected over the anterior border to cover the superior surface of the liver to the posterior peritoneal limit — thence it passes to the inferior concave surface of the diaphragm (superior layer of the coronary ligament) — thence over the anterior portion of the concavity of the diaphragm to the anterior abdominal wall — whence it passes down the anterior abdominal parietes to the umbilicus, to the place of beginning. Course of the Peritoneum Forming the Lesser Sac — In Longitudinal Section. — Beginning at the posterior aspect of the stomach, which it covers, the peritoneum of the lesser sac passes upward to the inferior surface of the liver, behind the transverse fissure, forming the posterior layer of the lesser or gastro-hepatic omentum — and having covered the postero-inferior aspect of the liver, it passes on to the under surface of the diaphragm (inferior layer of the coronary ligament) — thence passes downward over the posterior portion of the concavity of the diaphragm to the spine, covering the great vessels — thence to the pancreas — thence forward, forming the upper layer of the transverse mesocolon — covers the supero-anterior aspect of the transverse colon — descends, forming the innermost layer of the great omentum — then ascends to the greater curvature of the stomach — and covers its posterior wall, to the place of beginning. The lesser sac is in relation with the inner aspect of the spleen, forming the inner layer of the gastro-splenic omentum — and also in relation with the superior portion of the left kidnev. Layers and Folds of Peritoneum. — (i) Parietal Layer — connected by subperitoneal areolar tissue with the walls of the abdomino-pelvic cavity. (2) Visceral Layer — covers some part, or the entire surface, of all the viscera of the abdomino-pelvic cavity. (3) Mesenteries — folds of peritoneum con- necting parts of the intestinal tract with the posterior abdomino-pelvic wall. See page 833. (4) Omenta — folds of peritoneum connecting the stomach with other viscera. See page 830. (5) Ligaments — reflections of peritoneum from parts of the abdomino-pelvic walls and diaphragm to the various abdomino-pelvic viscera other than the intestines — for example, those of the liver, spleen, uterus, etc. For these ligaments, see the various viscera of the abdomino-pelvic region. Foramen of Winslow. — Communication between the greater and lesser peritoneal sacs — revealed by lifting the liver upward and to the right, and depressing the first part of the duodenum and intestines downward and to the left. Bounded: — Superiorly; by caudate lobule of liver; — Inferiorly; by first part of duodenum and first part of hepatic artery; — Anteriorly; by liga- mentum hepato-duodenale (right free edge of lesser omentum), with its con- tained ductus communis choledochus, vena portae, and hepatic artery, in order from right to left — the vena porta? lying somewhat posterior to artery and duct. Viscera Almost Entirely Covered by Peritoneum. — Liver; stomach; 822 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. spleen; first portion of duodenum; jejunum; ileum; transverse colon; caecum; sigmoid flexure of colon; upper half of rectum; uterus; ovaries. Viscera Partly Covered by Peritoneum. — Descending and transverse parts of duodenum; ascending and descending colons; mid-portion of rec- tum; upper part of vagina; posterior wall of bladder. Viscera in Contact with Peritoneum without Being Especially Cov- ered by It. — Kidneys; suprarenal capsules; pancreas. Viscera Uncovered by Peritoneum. — Lower end of rectum; neck, base and anterior aspect of bladder; anterior and inferior portion of posterior wall of vagina. GENERAL SURGICAL CONSIDERATIONS IN OPERATIONS UPON THE PERITONEUM. Where the peritoneum is attacked surgically it is generally dealt with incidentally, as a part of some special operation. The technic, therefore, of dealing with the peritoneum is described in those special operations. In some cases, however, the peritoneum is the structure primarily dealt with — and will be so considered in the present section. The surface form and landmarks of the peritoneum, as well as the instru- ments used, are sufficiently given under the operations upon the viscera of the abdomino-pelvic cavity. OPERATIONS FOR THE SEPARATION, DIVISION, OR LIGATION OF PERITONEAL ADHESIONS. Description. — Adhesions, resulting from the union of the serous surfaces of the peritoneum, may occur in the form of thin, thick, narrow or broad sheets or membranes; — in the form of fragile, dense, short or long bands; — or as limited or extensive surfaces loosely or intimately united. Adhesions may be vascular or comparatively non-vascular. Adhesions may be en- countered in any operation involving any serous cavity — therefore, the special features, anatomical relations, and all steps preliminary to the discovery of the adhesions, will depend upon the operation in question. Two general methods of dealing with adhesions are available; (i) By blunt dissection, with or without ligature, — more applicable in non-vascular, loose and limited adhesions; — (2) By division between ligatures, — more appli- cable to vascular, firmer and more extensive adhesions. Separation of Adhesions by Blunt Dissection, with or without Liga- tion. — The underlying principle in this method of dealing with adhesions is to find the plane of cleavage in the abnormal union and follow it up, sepa- rating the adherent surfaces as carefully as possible. This separation is best accomplished by means of a blunt dissector, the handle of a knife, the closed ends of a pair of blunt scissors, or the tip of the finger. If the last be used, a better hold may be gotten upon the parts by stretching a single thickness of gauze over the finger-tip. The adhesions are gently torn apart, always endeavoring to adhere strictly to the cleavage line, especially where important structures are involved, as in the serous coverings of viscera. If the adhesions be limited and but little vascular, ligation is generally unnecessary. If they be vascular, and especially if somewhat extensive and dense, they should be ligated in two places from 1.3 to 2.5 cm. (J to 1 inch) apart, according to circumstances, and then divided between the ligatures. The preferable liga- OPERATIONS FOR PERITONEAL ADHESIONS. ^3 ture is plain gut for small adhesions — and chromic gut for larger ones. Ad- hesions are often first divided and then ligated. (See Fig. 586, D.) Division of Adhesions between Ligatures. — The adhesions are first carefully isolated — and then treated according to their nature. If they be in the form of bands, double ligatures of chromic gut are thrown around them Fig.586.— OPERATIONS FOR THE SEPARATION OF PERITONEAL ADHESIONS AND THE LIGATION ok Omentum : — A, A, Dividing-, in sections, thick layers of intestino-abdominal adhesions between double ligatures ; B, Incising thin layers of inter-intestinal adhesions ; C, Ligating isolated bands of intestino-abdominal adhesions ; D, Separation of membranous inter-intestinal adhesions by blunt dis- section ; E, F, F, Tying off. in sections, adherent omentum, preparatory to excision of distal portion — E, by means of individual ligature carried by aneurism-needle — F, F, by means of continuous liga- ture applied to the posterior and drawn through the anterior aspect of the omentum in sections, by catch-forceps. and tied, and the bands are then divided between them. If the adhesions be in the form of broad surfaces, they are ligated in sections and divided upon the distal side of the ligatures — or between two ligatures, if indicated. (See Fig. 586, A.) Visceral Adhesions to the Abdomino-pelvic Wall. — \\ hen entering the abdominal cavity where adhesions may be suspected, or where, in the 824 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. neighborhood of known adhesions, it is uncertain as to whether the peritoneal cavity have been entered, the underlying tissues should be picked up and rolled between the fingers, to enable a judgment to be formed by the sensation imparted. If the peritoneal cavity be entered in the immediate vicinity of an adhesion, this should be at once recognized by sweeping the finger around the vicinity of the opening — and the adhesion separated by blunt dissection, or divided between double ligatures if necessary. Where the opening made comes directly down upon adhesions, these should be recognized as soon as possible, that the progress toward the peritoneal cavity may be known — and then an endeavor be made to reach a free margin of the adhesion, from which the remainder of the separation, or division, may be made on the general principles mentioned. (See Fig. 586, A, C.) Intestinal Adhesions. — The thin, membranous or velamentous adhesions may generally be separated by blunt dissection with the fingers — by putting the parts gently upon the stretch and keeping the adhesion in a broad, thin layer, rather than in a thick, twisted cord. Dense, organized adhesions require careful dissection — that no part of either wall raav be dangerouslv thinned. (See Fig. 586, B, D.) Inter-visceral Adhesions. — Or adhesions between growths and viscera — should be dealt with by putting the adhesion upon moderate stretch — by traction upon one or both viscera, until the bond of adhesion is demonstrated — then first ligate or clamp on each side, safely to the outer side of the viscus, and divide the adhesion between the ligatures or clamps. Omental Adhesions. — Adherent omentum may often be stripped off with the fingers. If too dense, or too firmly united for this, it should be ligated with a single ligature, or in sections, and divided. Large portions of the omentum — and even the entire omentum — may be amputated. The omentum may require onlv a proximal, or mav require double ligaturing. (See Fig. 586, E, F, F.) Comment. — (1) While the separation in the plane of the abnormal adhe- sion should always be the course attempted, where this is impossible it often happens that areas, dependent upon their nature, have to be ligated, or clamped, and cut, with the sacrifice of some portion of the least important structure. (2) Where the separation of an adhesion between viscera and neighboring structures (visceral or otherwise) is impossible, and where the step is permissible, one or more layers, or even the entire thickness, of the less important structure is left attached to the more important one — after ligating and blunt dissection, or incision, of the adhesion — thus leaving a limited area of adherent tissue attached to an organ, rather than risk injuring the organ by further attempt at removal. In such cases the portion left is reduced to its smallest and thinnest size. (3) It is always desirable to preserve the serous covering of a viscus (to aid nutrition and avoid adhesions and sloughing) — and sometimes surfaces left raw by separating adhesions may be covered, and hemorrhage also controlled, by suturing adjacent serous surfaces over them — or by attaching omental grafts. (See page 832.) Xote. — For further consideration of this subject, see Complications of Median Abdominal Section, page 806. PARACENTESIS ABDOMINIS. Description. — Puncture of the peritoneal cavity for diagnostic purposes, or for evacuation of fluid. OPERATIVE TREATMENT OF DIFFUSE SEPTIC PERITONITIS. 825 Preparation. — Shave abdominal wall. Empty bladder and bowels. Area of dulness verified by percussion immediately before paracentesis. Cocainization of the area of puncture. Position. — Patient, where possible, sits upright in chair — where impossi- ble, lies upon edge of bed. A many-tailed, sterilized bandage, or ordinary towel, with a central opening corresponding to the site of paracentesis, is placed around the patient, and tightened posteriorly by an assistant as the abdominal enlargement decreases with the evacuation of fluid. Surgeon sits immediately in front of patient. Landmarks. — Linea alba; umbilicus; limit of upper aspect of bladder (see that structure, page 796). Special Instruments. — For exploratory punctures, aspiratorv svringes with needles of small caliber. For evacuation of considerable quantity of fluid, a straight cannula and trocar of fairly large size is used. Aspirators of the Dieulafoy and Potain type may be employed. Where the skin is to be preliminarily incised, a knife is necessary — and a needle and thread, where the incision, or trocar-wound, is to be closed bv suture. Site of Paracentesis. — Generally in the linea alba, midway between umbilicus and symphysis pubis. Sometimes the puncture is made in the lower half of either semilunar line. Operation. — (1) Having so placed the broad bandage that the opening is opposite the site of paracentesis, and having grasped the exploratorv or aspira- torv needle, or trocar, in such a way as to predetermine, by means of the right index, the depth to which it is to enter, which will be decided bv the estimated thickness of the abdominal wall, the instrument is quickly but guardedly thrust through the abdominal wall into the free peritoneal cavity, in a single movement. In the case of the exploratory syringe, sufficient fluid is with- drawn for examination — the needle withdrawn, and the wound closed with collodion and cotton. (2) In the case of the evacuation of large amounts of fluids by means of cannula and trocar (or aspirator) the trocar is with- drawn and the cannula left in situ — the fluid is then allowed to flow, the bandage being tightened pari passu. At the end of the operation, the can- nula is withdrawn — and, if it have been of large size, an interrupted gut suture is made to close the opening by being passed on a curved needle, from side to side, through a part of the thickness of the abdominal wall. The outer aspect of the opening is then closed with collodion and gauze, or cotton. Comment. — (i) Where a large size instrument is used, it is best to make a small preliminary incision through the tough skin. (2) A cannula should preferably be used the end of which is not pointed or sharp. (3) If the cannula be obstructed during the flow, it may generally be freed by the passage of a sterile probe down its length. (4) As the fluid escapes, the inner end of the cannula (especially if dull) may be shifted so as to furnish the best evacuation. (5) The fluid should be made to escape slowly — and may be retarded by a compress over the outer end of the cannula — tc avoid syncope. OPERATIVE TREATMENT OF DIFFUSE SEPTIC PERITONITIS. murphy's method. A great variety of methods of operating for diffuse septic peritonitis, variously combined, have been resorted to by various surgeons — the chief among which have been: Local dry sponging of the involved area, with or 826 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. without evisceration; Extensive saline irrigation of the entire peritoneal cavity during the operation; Local irrigation of the involved area; Simple evacu- ation of septic fluid, with no other procedure; Cigarette, cigar and Mikulicz drains; Glass-tube drainage, with or without gauze; Rubber-tube drainage, with or without gauze; Drainage through unsutured wound, or through wound but partly sutured, with or without gauze or other drains; Drainage through counter-openings (as through the pelvis, loin, perineum, or vagina) ; Closure without irrigation; Irrigation followed by closure; Elevation of head of bed (Fowler's position), with one or more of the above measures. Two methods will be here described; Murphy's method, illustrating drainage; — and Blake's method, illustrating irrigation with closure. It can not be said that any radically new ideas are used in either method — but each, by grouping various measures, has evolved a technic. The features of the Murphy method are the following: (1) The rapid removal of the cause of infection, as far as possible, and with the minimum handling of the intestines. No attempt is made to sponge the peritoneal surfaces, or to remove lymph exudate, which would tend to open up channels for toxic absorption. (2) The drainage of the floor of the pelvis through a suprapubic incision as well as through the operative incision. The combined post-operative pos- ture and the action of the diaphragm thereby aid in the expulsion Of accumu- lated fluid. (3) The foregoing of all lengthy procedure and secondary objects accom- plishing satisfactory drainage and minimizing manipulation and length of anesthesia. (4) The semi-sitting post-operative posture (Fowler's position), — for the purpose of causing the fluids to gravitate toward the drains and away from the channels of greatest absorption into the system. (5) The post-operative absorption of large quantities of saline solution through the rectum, thus reversing the lymphatic current and converting the peritoneal surface into a secreting rather than an absorbing membrane — and also largely increasing the urine. This is accomplished in the following way; — a nozzle with several openings is inserted into the rectum — to which is attached a rubber tubing leading to a reservoir bag — the bag hanging only a few inches above the level of the rectum — so that the fluid simply trickles into the rectum at but slightly faster rate than absorption occurs. From one to two quarts flows in continuously in about an hour. Through the extra holes in the nozzle flatus is expelled and the intestine thus kept deflated, especially as the nozzle may remain in situ after the tube is disconnected. The peritoneum thus discharges fluid freely — whicn, by diaphragmatic action and the special pos- ture, is carried downward toward the dependent drains — thereby washing the peritoneum in its passage over its surface and escaping through the exits provided. The heart's action is increased and larger quantities of urine are voided, thus increasing the elimination of septic material. (6) Intestinal peristalsis is prevented by abstinence from mouth-feeding and drinking — thereby lessening the chance of disseminating septic matter. Opium may possibly be given to aid to this end. OPERATIVE TREATMENT OF DIFFUSE SEPTIC PERITONITIS. blake's method. The features of this technic are, in the words of its author, — "Early oper- ation — lavage of the peritoneum with large quantities of saline solution — OPERATIVE TREATMENT OF DIFFUSE SEPTIC PERITONITIS. 827 closure of the peritoneal cavity without drainage, unless the latter is absolutely indicated by the presence of non-absorbable amounts of necrotic material." Three categories of cases are recognized — Localized collections of pus, with limiting adhesions — cases of spreading peritonitis with no limitations of Fig. 587. — Sites and Forms of Intra-abdominal Drainage and Irrigation: — (1) Cigarette drainage in the appendical region; (2) Mikulicz bag and pack in the left hypochondriac region; (3) Gauze drain from the pelvic peritoneum through the posterior vaginal pouch and vagina; (4) Intra-peritoneal irrigation by Blake's irrigator through median incision (the filling funnel and exit tube are not attached); (5) Drainage of the pelvic peritoneum may also be accomplished through this wound, especially if made somewhat lower; (6) Intra-peritoneal irrigation by Kelly's irrigator (the water returning through open wound, along tube, after dis- tending abdomen); (7) Drainage of the right hypochondrium may also be secured through this wound. the process by adhesions or gravitation, but in which the limits, nevertheless, are ascertainable — and cases of general peritonitis in which apparently the entire peritoneal cavity, with possibly the exception of the lesser cavity, is involved. The last two categories constitute general diffuse peritonitis. 8 2 8 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. The two essential features of the technic are — The removal, as early as possible, of the cause of infection, or the limitation of the results of infection, thereby minimizing additional peritoneal and general infection; the placing of the peritoneum in the best condition to combat and eliminate generalized infection. The peritoneum is cleansed by abundant irrigation with decinormal saline solution of no° F. This solution may be delivered into the cavity of the peritoneum from the mouth of a pitcher — or, more recently, is carried throughout the indicated portions of the peritoneal cavity by means of a special irrigator (Fig. 587). As much of the fluid as does not readily flow Fig. 588. — Approaching an Appendical Abscess by an Extra-peritoneal Route: — A, A, Retracting abdominal wound; B, Reflection of peritoneum detached from iliac fossa and pushed inward; C, Cecum; D, Ileum; E, Appendix; F, Iliac muscle; G, Psoas muscle; H, Iliac vessels; I, Appendical abscess; J, Course of approach and drainage of abscess. (Modified from Kelly and Hurdon.) out is left in the cavity — and handling of the intestines, other than done by the irrigator and fluid, is avoided. The peritoneal endothelium is thus less damaged and the detachable products of infection are diluted and removed. In those cases in which the focal cause of infection can be removed, drainage may or may not be used. In other cases drainage has been generally used by the majority of operators. More latterly the author of the technic has omitted drainage almost entirely — only using it in cases where the existence of necrotic tissue or hemorrhage necessitated it. When indicated, the parietal wound can be drained down to the peritoneum. Other forms of intra-abdominal irrigation and drainage are shown in Fig. 587. OPERATIVE TREATMENT OF DIFFUSE SEPTIC PERITONITIS. 829 OPERATIVE TREATMENT OF INTRA-ABDOMINAL ABSCESSES. Only generalizations of technic can be here mentioned — the indications differing in abscesses of different origins and sites. In the present instance an abscess of appendical origin will be taken as a type. The site of evacuation of such an abscess, as of any other, will often be determined by the local phenomena of tenderness and swelling — and the incision to the focus of suppuration should generally be over these. As a Fig. 589. — Localization of an Adherent Appendicular Abscess through a Primary Incision in the Outer part of the Right Rectus, opening up the General Peritoneal Cavity — and its Evacuation and Drainage through a Secondary Incision near the Iliac Crest, through Adhesions Walling it off from the General Cavity — the Main Wound being Closed. (Modified from Kelly and Hurdon.) usual thing, the incision will lie rather to the outer side, between the position of the appendix and the iliac crest, or Poupart's ligament. Where it is possible, the fibers of the external oblique should be separated rather than cut. The internal oblique and transversalis should be injured as little as possible, but the fibers of one or both must generally be divided — or may be penetrated by 830 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. blunt dissection. Sometimes it is necessary to make a free incision, largely dividing the muscles from the last rib to the iliac crest. When it is possible to do so, the abscess should be opened retroperitoneally — which is usually accomplished by following down closely to the iliac fossa, detaching and pushing the peritoneum inward — until the abscess can be reached behind the peritoneum (Fig. 588). If, on approaching the abscess, the peritoneum be found free and movable over the abscess, one of several courses may be pursued — By displacement of the peritoneum, or the mass, an attempt may be made to reach the site of pus outside of the peritoneum, as just described — The general relations and extent of the abscess may be discovered by one hand introduced into the general peritoneal cavity through a median, or other, incision, and, while this is open, or after its closure, the abscess may be approached and evacuated through a second incision extraperitoneally (Fig. 589) — Or the abscess may be deliber- ately incised transversely, after packing off the field with gauze and guarding the general cavity from infection. Whether the pus-sac be reached retroperitoneally, or through adherent peri- toneum, or be free in the peritoneal cavity, it is best opened by carrying a pair of closed artery or dressing forceps into its cavity — and opening its blades in the act of withdrawal (Fig. 589). The neighboring structures should be protected from soiling by gauze packing and the abscess be brought as near to the surface before emptying as possible, that its contents may be poured directly outward. Part of its fluid, especially if the cavity be distended, may be first aspirated, that the remainder may be more fully controllable during evacuation. Following penetration of its wall, a finger should be introduced for exploration. After evacuation and cleansing of the abscess cavity free drainage should be established by means of cigarette drains, Mikulicz pack, or rubber tubes. III. THE OMENTUM. SURGICAL ANATOMY. Description. — The omenta are folds of peritoneum connecting the stom- ach with other viscera. They consist of the great or gastro-colic, small or gastro-hepatic, and gastro-splenic omenta. Great or Gastro-colic Omentum. — Passes down from the greater curva- ture of the stomach as an apron in front of the small intestine, thence upward to be fused with the transverse colon, being connected with the gastro-splenic omentum on the left, and with the hepatic flexure of the colon and descend- ing colon on the right; — consisting of four layers, two descending and two ascending; the two middle layers belonging to the lesser sac and the two superficial layers to the greater sac; — its vessels coming chiefly from the gastro-epiploica sinistra of the splenic artery, and to a less extent from the gastro-epiploica dextra of the gastro-duodenal branch of the hepatic artery. Small or Gastro-hepatic Omentum. — Extends from transverse fis>ure of liver to lesser curvature of stomach, being continuous on the right with the first part of the duodenum (there forming the ligamentum hepato-duo- denale), and, on the left, with the gastro-splenic omentum; — formed of two la vers, one from the lesser and one from the greater sac; — and having the following relation of vessels between the layers of the hepato-duodenal portion of the gastro-hepatic omentum: ductus communis choledochus, on the right: hepatic arterv, on the left: vena porta\ between the two and somewhat pos- terior to them. LIGATION OF THE OMENTUM. 831 Gastro-splenic Omentum. — Extends from the fundus of the stomach to the gastric surface of the spleen; — and transmits the vasa brevia of the splenic artery to the stomach. GENERAL SURGICAL CONSIDERATIONS IN OPERATIONS UPON THE OMENTUM. The remarks made under this head in connection with the Peritoneum are applicable to this section. See page 649. Fig. 590. — LlGATIXG THE OMENTUM THROUGH AREAS PREVIOUSLY CRUSHED BY AN ANGIO- TRIBE. LIGATION OF THE OMENTUM. Description. — In the course of intra-abdominal operations, it is often necessary to ligate portions of the omentum, either for the purpose of freeing adhesions, or as a preliminary step to the removal of a part, or even the whole, of the great omentum. Ligation of Omental Adhesions. — The general principle of dealing with adhesions by separation by blunt dissection, or by ligature and division, described under the operations for peritoneal adhesions (see page 649), applies equally to those of the omentum. \Yhere the separation can be accomplished by blunt dissection, this should be done. Where division by knife or scissors is necessary, this should generally be preceded by ligation with chromic gut. The ligature may be conveniently passed by means of an aneurism-needle — either around a single band of adhesion, or in sections through broader extents of adhesion. The omentum is then divided distally to the ligature — or, where indicated, as is generally the case in dense adhe- sions, between double ligatures. (See Fig. 586, E, F, F.) Ligation of the Omentum Preparatory to Removal of Larger Por- tions. — The omentum may be so irregularly and completely bound down as to require ligature and division in piecemeal, as in tying off adhesions, 8 3 2 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. as just described. Where, however, it is largely or entirely free, a tier of ligatures may be quickly run across the free portion just above the line of subsequent division. This tier may be applied in sections by means of an aneurism-needle. (See Fig. 586, E.) Or it may be more quickly placed by holding the ligature in contact with the back or opposite side of the omen- tum, and then, at proper intervals, piercing the omentum from the front with a pair of catch-forceps, or a Cleveland ligature-carrier, grasping the ligature and drawing it through — it is then cut at each opening through which drawn, interlocked with its neighbor by a half-turn, and tied — as shown in Fig. 586, F, F. Heavy, thick portions of omentum are best crushed with an angiotribe and ligated through the crushed area (Fig. 590). OMENTAL GRAFTING. Description. — Consists in the using of isolated pieces of omentum to repair peritoneal defects. These pieces of omentum are excised from the great omentum and sutured to wounded or denuded surfaces, or suture- lines, of the abdomino-pelvic viscera normally covered by peritoneum. They are especially used to reinforce suspicious intestinal sites — but may be applied to any of the serous surfaces of other viscera. They become adherent within a few hours — and thus strengthen weakened sites. Operation. — The application of omental grafts is called for during the course of intra-abdominal operations — and the technic of the operation is simple. A small piece of the great omentum, preferably its free aspect, Fig-. 591.— Omental Grafting :— Graft of omentum reinforcing circular enterorrhaphy, sutured to the mesentery and partly sutured to the intestine. calculated in shape and size to cover the defect by a good margin, is cut away with scissors, distally to previously placed ligatures of gut — and this graft is placed in contact with the area to be reinforced, preceded or not by slight scarification of the site with a needle-point — and is held in contact by means of a few loosely applied, interrupted, fine gut-sutures. If the grafts cannot be used immediately after being cut, they are placed in warm normal salt solution until required, when they are partially dried between gauze. The grafts used to reinforce circular enterorrhaphy generally average from 4 to 5 cm. (1^ to 2 inches) in width, and should be long enough to completely surround the site in question. (See Fig. 591.) SURGICAL ANATOMY OF THE SMALL INTESTINES. 833 IV. THE MESENTERY. SURGICAL ANATOMY. Description. — The mesenteries are peritoneal folds connecting any por- tion of the gastro-intestinal tract to the posterior abdomino-pelvic wall. Divisions. — Mesogastrium; mesoduodenum; mesentery proper; mesen- teriolum (mesentery of the vermiform appendix) ; ascending mesocolon (some- times present); transverse mesocolon; descending mesocolon (sometimes present); sigmoid mesocolon; mesorectum. Mesentery (proper). — A fan-shaped fold of peritoneum beginning at the spinal column and following and covering the anterior aspect of the superior mesenteric vessels to the loops of the small intestine, enveloping all the coils of the jejunum and ileum (but not those of the duodenum) — returning thence along the posterior aspect of the superior mesenteric vessels to the vertebral column. The root of the mesentery extends from the left lateral aspect of the body of the second lumbar vertebra downward — crossing obliquely the spinal column, aorta,- vena cava inferior, and third portion of the duodenum, ending at the right sacro-iliac synchondrosis, or in the right iliac fossa. It contains, between its right upper and left lower layers, the mesenteric arteries and veins, lacteals, lymphatics and nerves, all held together by fatty areolar tissue. The right upper layer of the mesentery passes from the root of the mesentery to the lower layer of the transverse mesocolon. Laterally the layers are continuous with the inner lamellae of the right and left colons. Below, the left layer is continuous with the peri- toneum covering the lumbar vertebra?, and passing thence over the pelvic organs. In dimensions, its length (convex intestinal border) is about 6.45 m. (21 feet) — its width averages 20.5 to 23 cm. (8 to 9 inches), its greatest width (opposite the central and lower loops of the intestine) being from 20 to 25 cm. (8 to 10 inches). GENERAL SURGICAL CONSIDERATIONS IN OPERATIONS UPON THE MESENTERY. The mesentery is involved surgically chiefly in the operation of partial enterectomy. PARTIAL EXCISION OF THE MESENTERY. See under Partial Enterectomy, page 850. SUTURING OF THE MESENTERY. See under Partial Enterectomy, page 850. V. THE INTESTINES. SURGICAL ANATOMY OF THE SMALL INTESTINES. Description. — Extend from pylorus of stomach to ileo-caecal valve. About 7.6 meters (25 feet) long. Divisions. — Duodenum (from 25.5 to 30.5 cm., or 10 to 12 inches) — con- sists of First or Superior Curved Portion (Superior Hepatic Curve) (not quite 5 cm., or 2 inches); — Second or Descending (Vertical) Portion (not quite 7.5 cm., or 3 inches); — Third or Transverse (Preaortic) Portion (about 12.5 cm., or 5 inches); — Fourth or Ascending Portion (about 2.5 to 5 cm., or 1 to 2 inches): — Fifth or Duodenojejunal angle. Jejunum — about upper two-fifths of remaining small intestines (about 2.9 meters, or 9 feet 7 inches). 834 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Ileum — about lower three-fifths of remaining portion (about 4.3 meters, or 14 feet 5 inches). General Form of Duodenum. — Usually has the form of a U, with which the above description corresponds — but is sometimes V-shaped. Course and Relations of First or Superior Curved Portion (Superior Hepatic Curve) of Duodenum. — Course ; from pylorus, passes upward and backward to right, ending at neck of gall-bladder. Superiorly and ante- riorly; quadrate lobe of liver; neck of gall-bladder; foramen of Winslow (duodenum forming its lower boundary); hepatic artery. Inferiorly; head and neck of pancreas. Posteriorly; common bile-duct; venaportae; gastro- duodenal artery; vena cava inferior; first lumbar vertebra. Course and Relations of Second or Descending (Vertical) Portion of Duodenum. — Course; descends from neck of gall-bladder down right side of vertebral column, from first to body of third or fourth lumbar vertebra — transverse colon crossing its middle third. Anteriorly; right lobe of liver (duodenal impression); right end of transverse colon; transverse mesocolon; small intestine; mesentery (right leaf). Posteriorly; right kidney, and suprarenal capsule (sometimes); renal vessels; common bile and pancreatic ducts; inferior vena cava; spermatic vessels. Internally (to left); head of pancreas; common bile and pancreatic ducts; pancreatico-duodenal vessels; first to fourth lumbar vertebra? and intervertebral discs. Course and Relations of Third or Transverse (Preaortic) Portion of Duodenum. — Course; from right side of body of third or fourth lumbar vertebra, crosses vertebral column in horizontal or slightly ascending manner, in front of great vessels and crura of diaphragm, moulding itself over these structures. Superiorly; head of pancreas; superior mesenteric vessels; in- ferior pancreatico-duodenal artery. Anteriorly; root and right and left layers of mesentery; lower layer of transverse mesocolon; superior mesenteric vessels; small intestines. Posteriorly; inferior vena cava; aorta; dia- phragmatic crura; third and fourth lumbar vertebra. Course and Relations of Fourth or Ascending Portion of Duodenum. — Course ; ascends vertically along left side of spine, from third or fourth lumbar vertebra to side of second or first lumbar vertebra. Anteriorly; transverse colon; transverse mesocolon (lower layer); small intestine; mesen- tery (left layer); antrum pylori (sometimes). Posteriorly; left diaphrag- matic crus; left psoas; left renal vessels; spermatic vessels; kidney (interno- inferior part). Internally (to right); head and neck of pancreas; aorta; fourth or third and second lumbar vertebra?. Course and Relations of Fifth Part, or Duodenojejunal Angle : Position; at left side of second or first lumbar vertebra. Superiorly; body of pancreas. Anteriorly; mesentery (left layer). Externally; left kidney (inner border). Peritoneal Covering of Duodenum. — First part; covered by perito- neum, except parts of posterior surface near vena cava and neck of gall- bladder. Second part; covered in front only (except that no peritoneum covers the front opposite the divergence of two layers of transverse mesocolon). Third part ; covered in front only (except that there is no peritoneum in front opposite root of mesentery). Fourth part; covered entirely in front, and partly at sides. Fifth part; entirely covered by peritoneum where it becomes jejunum. Ligaments of Duodenum. — Ligamentum Hepato-duodenale (suspensory ligament of duodenum) — right edge of lesser omentum — from hilus of liver to first part of duodenum. Ligamentum Cystico-duodenale — from neck of gall-bladder to first part of duodenum. Ligamentum Duodeno-renale — SURGICAL ANATOMY OF THE SMALL INTESTINES. 835 from summit of right kidney to outer aspect of first part. Ligamentum Duodeno-mesocolica — from junction of left layer of mesentery with lower layer of transverse mesocolon, to outer aspect of fourth part of duodenum. Other Fixation-points of Duodenum. — Common bile-duct and pan- creatic duct; cceliac axis and superior mesenteric artery; fibro-nervous struc- tures; muscle of Treitz (passing from duodeno-jejunal angle upward beneath pancreas to left crus of diaphragm). Fossae in Neighborhood of Ascending Duodenum and Duodeno- jejunal Angle. — Inferior duodenal fossa; superior duodenal fossa (these two may coexist) ; duodeno-jejunal (mesocolic) fossa (non-coexistent with above two) . Position of Jejunum. — Extends from duodeno-jejunal angle to beginning of ileum. Position not fixed — coils of jejunum generally to be found upon left side of abdominal cavity, in left lumbar, left inguinal, and left half of umbilical regions. The upper loops are apt to be more transverse than the lower. Characteristics of Middle Portion of Jejunum (as Compared with Middle Portion of Ileum). — Diameter about 4 cm. (i£ inch). Walls thicker, more vascular, and mucous membrane more complex. Weight of given length greater. No valvular conniventes (or poorly marked). Its position. Mesentery of Jejunum and Ileum (Attachment of Jejunum and Ileum) — (1) Passes obliquely from left side of body of second lumbar vertebra downward and to right, crossing spinal column, aorta, inferior vena cava, and third part of duodenum, to right sacro-iliac synchondrosis (or to right iliac fossa). (2) Middle and inferior loops of small intestine have longest mesen- tery — and are, therefore, generally found in pelvis. Duodenum has no mesentery. Lower part of Ileum has shortest mesentery (opposite right psoas muscle). (3) Mesentery extends from distal end of duodenum to ileo-caecal junction. Its upper (right) layer is continuous with inferior layer of transverse mesocolon and with peritoneum of ascending colon. Its lower (left) layer joins peritoneum enclosing descending colon and forming sigmoid mesentery. (4) Average length of mesentery (from spine to intestines) from 20 to 25 cm. (8 to 10 inches). Position of Ileum. — Extends from lower end of jejunum to ileo-ca?cal valve. Position not fixed — coils of ileum generally to be found on right side of abdomen and pelvis, in right lumbar, right inguinal and in right half of umbilical and hvpogastric regions. The lower loops are apt to be more vertical than the upper. Characteristics of Middle Portion of Ileum (as compared with Middle Portion of Jejunum). — Diameter about 3 cm. (i\ inch). Walls thinner, less vascular, and mucous membrane simpler. Weight of given length less. Valvular conniventes. Its position. Meckel's Diverticulum of Ileum (remains of vitelline duct). — Blind diverticulum of ileum and directly continuous with its lumen. Length, from 5 to 7.5 cm. (2 to 3 inches) — extremes, from 1 to 18 cm. (^ to 7 inches). Arises about 109 cm. (43 inches) — extremes, from 30.5 to 305 cm. (1 to 10 feet) — above ileo-caxal junction. Generally lies free in abdominal cavity (instead of passing to umbilicus, as in fetus). But distal end may be con- nected with umbilicus, or other site, by strong band (remains of enlarged omphalo-mesenteric vessels). Its presence occurs in about 50 per cent. Arteries of Small Intestines. — (1) Duodenum; pyloric of hepatic; supe- rior pancreatico-duodenal branch of gastro-duodenal branch of hepatic; 836 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. inferior pancreaticoduodenal of superior mesenteric. (2) Jejunum and Ileum; superior mesenteric. Veins of Small Intestines. — Correspond with arteries — a single vein accompanying each artery. Lymphatics of Small Intestines. — End in mesenteric lacteals. Nerves of Small Intestines. — From superior mesenteric plexus, formed by nerves from cceliac plexus, semilunar ganglion, and right vagus. SURFACE FORM AND LANDMARKS OF THE SMALL INTESTINES. Upper limit of attachment of mesentery (duodenojejunal angle) generally lies from 8 to 10 cm. (3 to 4 inches) above the umbilicus, slightly to left of median line. Lower limit is about 10 cm. (4 inches) from middle of right Poupart's ligament, on a line directed upward and inward in the course of psoas muscle. SURGICAL ANATOMY OF THE LARGE INTESTINES. Description. — Extend from lower end of ileum to anus. About 1.5 to 1.8 meters (5 to 6 feet) long. Divisions. — Cfficum; Ascending Colon; Hepatic Flexure; Transverse Colon; Splenic Flexure; Descending Colon; Sigmoid Flexure (Sigmoid Colon) ; Rectum. General Characteristics of Large Intestines (as compared with small intestines). — Greater size; greater fixity of position; sacculations; longitu- dinal bands; appendices epiploicae. (Last three characteristics not present in rectum). Caecum. — (About 7.5 cm., or 3 inches, broad, and 6.3 cm., or 2\ inches, long.) Position; lies in right iliac fossa, above outer half of Poupart's ligament, generally resting upon psoas muscle — sometimes upon iliacus only — sometimes bulk of caecum rests on iliacus and apex on psoas — sometimes free of both, being entirely in pelvic cavity, or even projecting beyond median line. Its apex, or lower point, lies slightly to inner side of middle of Poupart's ligament, just behind anterior abdominal wall and opposite inner portion of psoas. The caecum is entirely covered by peritoneum and lies free in abdominal cavity. There is no mesocaecum. Several forms or types of caecum occur (see Appendix). Anteriorly; abdominal parietes above outer half of Poupart's ligament. Posteriorly; ilio-psoas; appendix (origin). Superiorly; ileo-caecal valve. Internally; ileum (termination). Ileo-ceecal Fossae. — Superior Ileo-caecal Fossa, an anterior pouch be- tween end of ileum and ascending colon. Inferior Ueo-Caecal Fossa, an inferior pouch under ileum, between it and caecum. Appendix Caeci. — Description; small blind tube, generally hollow to tip, its lumen continuous with that of caecum and sometimes guarded by valve. Average length, 9.2 cm., or 3! inches (extremes, from 3.1 to 23 cm., or from \\ to 9 inches). Diameter, about 6 mm. {\ inch) at base — 5 mm.(f\ inch) at apex. Origin, generally arises 1.7 cm. {\\ inch) below ileo-caecal valve, upon its inner and posterior aspect — but sometimes forms the true apex of caecum. Course; variable — (1) According to Treves, the appendix generally passes upward from behind caecum toward spleen, lying behind lower end of ileum and its mesentery. (2) According to Berry, the order of frequency of position is, " (a) pelvic; (b) retrocaecal; (c) internal to caecum, i. e., Treves's position; (d) variable." (3) According to Bryant, in order of SURGICAL ANATOMY OF THE LARGE INTESTINES. 837 frequency, "(a) inward; (b) behind caecum; (c) downward and inward; (d) into true pelvis. " Relations to peritoneum ; Mesentery always present but not extending to tip — about distal third being entirely enveloped in peri- toneum and free. Meso-appendix, of triangular form — derived from left leaf of mesentery — containing, in its free margin, posterior branch of ileo- cecal artery (from ileo-colic). Relations to caecum; four types of caecum occur (Treves) — (a) appendix arising from apex of caecum; (b) appendix arising between two sacculi of equal size; (c) appendix arising between two sacculi of unequal size (about 90 per cent, of cases) ; (d) appendix appearing to arise from ileo-colic junction. Relations to anterior abdominal wall; (1) According to McBurney, — draw straight line from anterior superior iliac spine to umbilicus, and beneath this line, from 4 to 5 cm. (ih to 2 inches) internal to the spine, the base of the appendix is found (in right iliac fossa). (2) According to Clado, — draw a line along outer edge of rectus — another between anterior superior iliac spines — opposite the junction of these the base of the appendix is found (in hypogastric region). Ileo-caecal Valve. — Opens upon postero-internal aspect, at upper border of caecum. Ascending Colon. — Description; About 20 cm. (8 inches) in length. Extends vertically upward from caecum to inferior surface of right lobe of liver, at right of gall-bladder (hepatic flexure). Covered by peritoneum anteriorly and laterally, which binds it to posterior abdominal wall. Its posterior surface (where peritoneum is absent) is bound by areolar tissue to quadratus lumborum, transversalis, and right kidney (antero-external part). Mesentery (ascending mesocolon) present in 26 per cent. (Treves). Rela- tions; Anteriorly; ileum; abdominal wall. Posteriorly; quadratus lum- borum; transversalis; kidney (antero-external part). Superiorly; liver (right lobe). Hepatic Flexure of Colon. — Upon under surface of liver, near gall- bladder, the ascending colon bends from posterior abdominal wall sharply to front and left, to become transverse colon. Transverse Colon. — Description; About 51 cm., or 20 inches (ex- tremes, from 30 to 84 cm., or 12 to ^t, inches), in length. Extends from inferior surface of liver, in right hypochondrium (hepatic flexure), trans- versely across anterior abdominal wall, with slight downward and forward convexity at its center, to the spleen in left hypochondrium (splenic flexure). Transverse mesocolon is long, and connects transverse colon to posterior abdominal wall — most movable part of large intestine. Transverse colon lies above the umbilicus four times out of five — and below it one time out of five (usually on a line connecting lowest parts of costal arches). Peritoneum entirely surrounds transverse colon. Relations; Anteriorly; abdominal wall; great omentum. Posteriorly; transverse mesocolon; descending duo- denum; small intestines; superior curvature of stomach (at times). Supe- riorly ; liver and gall-bladder (inferior surfaces) ; great curvature of stomach ; spleen (inferior end); pancreas (tail). Inferiorly; small intestines. Splenic Flexure of Colon. — Situated beneath lower end of spleen — further back in abdomen than hepatic flexure. Connected by phreno-colic ligament (a fold of peritoneum) passing between splenic flexure to diaphragm, between tenth and eleventh ribs. Descending Colon. — Description; About 21.5 cm. (8| inches) long. Extends from spienic flexure vertically through left hypochondrium and lumbar regions to sigmoid flexure. Peritoneum covers it similarly to ascend- ing colon (q. v.). Mesenterv (descending mesocolon) present in 36 per cent. 838 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. (Treves). Relations: — Anteriorly; abdominal wall; jejunum. Poste- riorly; diaphragm; left kidney (infero-external part); quadratus lumborum; transversalis. Superiorly; spleen; phreno-colic ligament. Sigmoid Flexure of Colon (Sigmoid Colon). — Description; An S- shaped curve, about 31 cm. (13 inches) long, lying in left iliac fossa, beginning at iliac crest and ending at brim of true pelvis, opposite left sacroiliac syn- chondrosis (or opposite upper edge of sacrum). Divisions; First Portion, of Colic Limb, tends downward, inward, and slightly forward toward outer aspect of Poupart's ligament and abdominal wall — generally has a short mesocolon (though sometimes peritoneum only anteriorly and laterally). Second or Rectal Part, tends to hang into true pelvis — mesentery about 7.5 cm. (3 inches) — very movable. Insertion of Sigmoid Mesocolon; in line extending obliquely from left iliac crest across psoas and left iliac vessels (at about their bifurcation) to join mesorectum at sacral promontory. Note ; More properly the sigmoid colon, or flexure, should include that portion of large intestine usually described as the first part of the rectum — and then would end where the mesorectum ceases, opposite the third piece of the sacrum, thus having more of an omega than a sigmoid appearance. Rela- tions ; Anteriorly; abdominal wall; small intestines. Posteriorly; left ilio-psoas; posterior pelvic wall; rectum. Intersigmoid Fossa. — In the layers of the mesocolon, generally over bifurcation of iliac vessels — looks downward to left. Sometimes found in children — rarely in adults. Rectum. — (Length, about 20 to 23 cm., or 8 to 9 inches.) Divisions: First or Superior Part; Second or Middle Part; Third Part, or Anal Canal. Note ; The rectum will be here described as consisting of three parts, as mentioned. More properly it consists of but two parts, corresponding with the second and third parts just mentioned — the first part above mentioned being, strictly, a portion of the Sigmoid Colon (see "note" under Sigmoid Flexure of Colon). First or Superior Part; 8 to 9 cm. (3 \ to 3^ inches) long. Corresponds with lower part of Sigmoid Colon, as sometimes de- scribed. Runs obliquely from left pelvic brim (beginning opposite either sacro-iliac synchondrosis, or sacral promontory, or even right side of base of sacrum) downward, backward, and to right to third sacral vertebra in the median line. Almost entirely enveloped in peritoneum, except posteriorly. Mesorectum connects its posterior aspect to anterior surface of sacrum. Mes- entery continuous with sigmoid mesocolon and terminates at third sacral ver- tebra. Relations of first part; Anteriorly; small intestine; sigmoid colon; bladder (posterior surface) in male; uterus (posterior surface) in female. Pos- teriorly; mesorectum; left pyriformis muscle; left sacral plexus; left internal iliac artery and veins; first, second, and one-half of third sacral vertebra?. Ex- ternally ; left ureter; left internal iliac artery and veins. Description of sec- ond or middle part ; 10 to 1 1 cm. (3 to 4 inches) long. Extends in a curve from middle of third sacral vertebra to opposite apex of prostate gland — running at first along right aspect of fourth sacral vertebra — thence back to median line about the sacro-coccygeal articulation — and passes thence downward and forward to opposite a line connecting the anterior aspects of the two ischial tuberosities, which is opposite the apex of prostate gland, and about 2.5 cm. (1 inch) below tip of coccyx. Partially covered by peritoneum— covered above, anteriorly and laterally — then only anteriorly — and about 2.5 cm. (1 inch) above prostate gland (never more than 8 cm., or 3I inch) it is re- flected from anterior surface of rectum to posterior surface of bladder, in male, or to posterior surface of upper one-fifth of vagina, in female (forming SURFACE FORM AND LANDMARKS OF LARGE INTESTINES. 839 rectovesical or recto-vaginal pouch). No mesorectum exists. On posterior surface of rectum there is no peritoneum below a point 12.5 cm. (5 inches) above anus. Relations of second or middle part of rectum; Anteriorly; (a) In Male; recto-vesical pouch; small intestines; bladder (trigone); vesicular seminales; vasa deferentia; prostate gland (inferior aspect); (b) In Female; vagina (posterior surface); recto-vaginal pouch; recto-uterine pouch; small intestines. Posteriorly; sacrum (lower portion); coccyx; ano-coccygeal body; middle sacral vessels; pyriformis muscles. Description of third part, or anal canal; About 2 to 3 cm. (f to i£ inch) — little less in female. Passes downward and backward, from a point opposite apex of prostate gland (about 2.5 cm., or 1 inch, below tip of coccyx) to end in anus. No peritoneal covering. Surrounded by sphincter muscles. Relations of third part, or anal canal ; Anteriorly ; bulb and membranous part of urethra (male); perineal body (female). Posteriorly; ano-coccygeal body; coccygei muscles. Laterally; fatty areolar tissue of ischio-rectal fossae; levatores ani muscles. Anus. — Surrounded by internal sphincter, levatores ani, and external sphincter. (See Perineum.) Arteries of Caecum and Colon. — Ileo-colic, colica dextra, and colica media, from superior mesenteric; colica sinistra and sigmoid, from inferior mesenteric. Veins of Caecum and Colon. — Superior and inferior mesenteric, emptying into portal system. Lymphatics of Caecum and Colon. — Those of ascending, transverse, and descending colon empty into mesenteric glands. Those of sigmoid colon empty into lumbar glands. Nerves of Caecum and Colon. — Caecum, ascending and proximal half of transverse colon are supplied by superior mesenteric plexus, from cceliac plexus. Distal half of transverse colon, descending and sigmoid colon are supplied by inferior mesenteric plexus, from aortic plexus. Arteries of Rectum. — Superior hemorrhoidal (of inferior mesenteric); middle hemorrhoidal (of internal iliac); inferior hemorrhoidal (of internal pudic) ; branches from sacra media (of abdominal aorta) ; branches from sciatic (of internal iliac); branches from vaginal,' in female (of internal iliac). Veins of Rectum. — Chiefly from superior hemorrhoidal to inferior mesen- teric, and thence to portal system. Some blood passes back by systemic system to inferior vena cava. Anastomosis between systemic and portal systems occurs in rectum. Lymphatics of Rectum. — Empty into anterior sacral and inguinal glands. Nerves of Rectum. — From cerebrospinal system (sacral plexus) — and from sympathetic system (hypogastric and inferior mesenteric plexuses). SURFACE FORM AND LANDMARKS OF THE LARGE INTESTINES. Caecum lies in right inguinal region, its lower border corresponding, at its center, with the center of a line drawn from anterior superior iliac spine to symphysis pubis. Ascending Colon ascends through right lumbar and hypochondriac regions to hepatic flexure. Hepatic Flexure lies beneath the liver in the right hypochondrium. 840 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Transverse Colon crosses the abdomen transversely at about the junction of the umbilical and epigastric regions — its superior border lying just below the greater curvature of the stomach — its inferior border just above the umbilicus. Splenic Flexure is posterior to the stomach in the left hypochondrium. Descending Colon descends through the left hypochondriac and lumbar regions to the sigmoid flexure. Sigmoid Colon lies in the left inguinal region. Note. — For the more detailed description of the relations of the parts of the large intestines, see Surgical Anatomy of the special parts. GENERAL CONSIDERATIONS IN OPERATIONS UPON THE INTESTINES. Preparation of Patient. — Bowels are to be emptied. Abdomen should be shaved. Position. — Patient lies supine, usually in a horizontal position, near the edge of the table. Surgeon may stand on either side of patient, but usually stands on the patient's right, incising from above downward. Assistant stands opposite surgeon. Portion of the Intestinal Wall where the Lamina? of the Mesentery Separate to Enclose the Intestines. — In the case of those portions of the intestines which have a mesentery, the lamina? of the mesentery begin to separate (in order to surround the wall of the gut) about 1.5 to 2 cm. (§ to f inch) from the intestine, leaving, upon these viscera, a triangular interval with a base of about 8 mm. (fV inch) where the muscular coat is uncovered by peritoneum — this triangular space being occupied by fatty areolar tissue, vessels, and nerves. The practical bearings of the above fact being; — (1) The necessity of being particularly careful in ordinary suturing, or the adoption of some special form ot suturing, in operations upon the intestines, in order to bring the peritoneum of the cut margins into contact with the wall of the intestines at the mesenteric border, thus securing the covering of the denuded tract with peritoneum and also securing apposition of serous surfaces when two ends of intestine are brought together; — (2) The guarding of the blood-supply to the intestines transmitted through this triangular space. Note— the method of dealing with this area of the intestine will be mentioned under special operations. Note. — For other general considerations bearing upon operations upon the intestines, see the introductions to the special classes of intestinal opera- tions. INSTRUMENTS USED IN OPERATIONS UFON THE INTESTINES. I. Instruments used in entering the peritoneal cavity — see the instru- ments for performing Abdominal Section (page 801). II. Instruments used in general intestinal operations; — intestinal clamps; artery-clamp forceps; dissecting and toothed forceps; scissors; bistouries; aneurism-needles; probe; grooved director; tenaculum; needles, ordinary straight cambric, curved, calyx-eyed, Keith's abdominal; needle-holder; fine silk; catgut; gauze pads; gauze sponges; sponge-holders; drains of gauze, wick, rubber tubing, glass tubing. Special instruments and mechanical contrivances required in special operations upon the intestines in general, particularly in the operations of entero-enterostomy. ENTERORRHAPHY IN GENERAL. III. Instruments used in operations upon the rectum and anus — see the operations upon those structures. ENTEROTOMY. Description. — Incision of intestine, with closure of wound at the same sitting. Generally resorted to for the removal of foreign bodies from the intestinal canal, or as a step in some operation. Formerly used in the same sense as enterostomy. Preparation — Position — Landmarks — Incision. — As in Median Ab- dominal Section (page 801). Operation. — (I) Having exposed that portion of the intestine which is to become the site of the operation, the coil involved is lifted out of the ab- dominal cavity and placed upon a warm, wet, sterile towel — the rest of the abdominal cavity and the other coils of intestine being protected by gauze packing. (2) The intestinal contents are pressed away from the site to be opened and the intestine is clamped proximally and distally to the operation- site. (3) Incision into the intestine is made upon its anti-mesenteric border, in the long axis of the gut — exercising care that the opposite intestinal walls be not injured. If the canal contain a foreign body, this may usually be cut down upon directly, its presence protecting the other coats. Otherwise the assistant should so hold the gut that its walls are separated while the surgeon makes a rapid, controlled stab into the lumen with a sharp, narrow bistoury, in order that the mucous membrane may not be simply protruded ahead of the incision. The keeping of the opposite walls apart during incision is best accomplished by gently grasping the lateral aspects of the intestine (a little nearer the anti-mesenteric than the mesenteric border) with forceps (or with the fingers, or thread retractors passing only through the outer coats) and drawing them apart laterally, while the mesenteric border is simultaneously drawn downward, thus forming a hollow triangle within the lumen of the gut. The wound in the intestine may be enlarged in the act of withdrawing the original bistoury — or by means of a blunt-pointed bistoury separately inserted — or one blade of blunt-pointed scissors may be introduced and the opening thus enlarged. (4) Care is used in preventing any unnecessary escape of in- testinal contents — and all sites of possible infection are packed off. (5) The object of the operation having been accomplished, the wound in the intestine is closed by one of the methods of intestinal suturing described under Enteror- rhaphy (usually with Lembert sutures). The abdominal wound is closed in the ordinarv manner. ENTERORRHAPHY IN GENERAL. Description. — Union of intestinal tissue by suturing. Sutures are of two kinds — Interrupted, each suture being formed of a separate thread; — Continuous, the entire line of suturing being formed of one thread. The features in favor of interrupted sutures are: — the strain is upon many rather than upon one thread, and is more evenly distributed; the blood-supply of the edges of the intestine is less interfered with; the giving-way of one thread is not so serious. The feature in favor of the continuous suture is its rapidity of application. Linear Enterorrhaphy is generally used of suturing limited wounds or incisions of the intestine, whether in the long axis or transversely. 842 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Circular Enterorrhaphy is usually used of suturing the entire circumference of intestine after complete transverse or oblique division of the gut. Characteristics of a Satisfactory Intestinal Suture. — The following, modified from Treves, are the features possessed by the best forms of suture; — (a) Two broad peritoneal surfaces should be brought into contact, (b) Closure should be tight enough to hold water, (c) The mucous membrane, if included, should not be penetrated by the same suture which passes through the serous coat (which might enable the intestinal contents to escape by capillarity). If only one tier of suturing be used, the mucous membrane should not be included, (d) Suturing should not be sufficiently tight to strangulate the edges of the intestine compressed by the sutures, (e) The method should be simple enough to be easily and rapidly carried out. (f) The suture should take a sufficiently firm hold of the intestine to run no chance of tearing out when put to a fair test, (g) The suture should pass through the serous, muscular, and part of (into) the relatively strong and thick submucous coat, (h) The material of suture must be sufficiently dura- ble and of non-irritating quality. Suture Materials. — Silk, fine, strong and preferably colored black (for more easy detection). Catgut, fine, plain, or chromic, may also be used, though less trustworthy and not capable of making so neat a suture knot line. All suture-materials should be tested before being used. General Considerations in Intestinal Suturing. — (1) The intestine in- volved is exposed through the simplest incision, generally by median abdomi- nal section, or by enlargement of a previous wound. The portion of intes- tine to be operated upon is drawn out of the abdomen and laid upon a warm towel wrung out of sterile normal salt solution, and steadied by an assistant. (2) Some form of intestinal clamping should be used to prevent the escape of the contents of the gut. One clamp should be placed upon the proximal and one upon the distal side of the site operated upon. The index-finger and thumb of each hand may be used in place of an instru- mental clamp, though generally less satisfactorily. Before the application of any manner of clamping, the contents of the intestine should be pressed away from either side of the site of operation by a process of manipulation resembling that of milking — so that the tract included within the clamps may be as free of intestinal contents as possible. (3) Avoid, as completely as possible, the escape of intestinal contents — and if the escape be inevitable, provide for the catching of the escaping fluid upon abundant gauze packing, which is immediately removed and other put in its place. (4) Control all unnecessary hemorrhage by making incisions in as non-vascular regions of the site to be operated upon as possible. All bleeding vessels are caught with artery forceps and tied with fine silk or catgut, preferably the latter, in the case of smaller vessels. (5) The general feature of intestinal suturing is to bring surfaces of serous membrane into contact for union — preceded or not by a primary tier of suturing which approximates the mucous coats alone,' or all the coats. (6) Theoretically, it is well to aim at including part of the submucous coat, but, practically, what is generally done is to include all of the serous and most of the muscular coats. The submucous coat of the intestine is tough and strong, and it should be the aim to include it in all intestinal suturing — though it is sometimes difficult to include the sub- mucous without also including the mucous coat. (7) While theoretically it is well not to have the same suture which passes through the serous also pass through the mucous coat, yet practical experience has shown that in manv instances where this is done no harm has resulted — and some surgeons ENTERORRHAPHY BY LEMBERT'S INTERRUPTED SUTURE. 843 do not attempt to avoid it — though it should, however, be avoided if possible. (8) All sutures should be tied with a surgeon's knot. In intestinal suturing it would seem that the use of two tiers of different kinds of suture makes a better juncture than the two tiers of one kind — thus a continued and in- terrupted combined may be considered better than two continued or two inter- rupted. (9) Interrupted sutures have a tendency to permit lateral expansion at the site of suturing — continuous have the opposite tendency — and therefore, theoretically at least, the latter encroach more upon the lumen of the gut. The interrupted form of suturing may generally be considered the better form of intestinal suturing in the majority of cases. (10) Often the suturing can be expedited by placing two or four temporary silk traction sutures through the serous and muscular coats in sue!" a position as to draw into two parallel folds or ridges the two edges to be apposed when the traction sutures are held by an assistant who draws upon them. (11) Needles should be used which displace rather than cut the tissues through which they pass on their way through the intestinal coats. The straight domestic needle or the instru- ment-makers' round straight or curved needle is the best. The curved needle always, and the straight needle sometimes, require a needle holder. (12) The abdominal cavity should be cleansed, if soiled, at the end of the operation — by means of gauze mops, with or without irrigation, as indicated. (13) Whether or not the abdomen will be closed without drainage will depend upon the nature of the case. In simple, clean suturing, the abdomen is closed without drainage. (14) Very many forms of intestinal suture are used — only those most generally employed will be here given. Fig. 592.— ENTERORRHAPHY BY THE LEMBERT INTERRUPTED SUTURE. ENTERORRHAPHY BY LEMBERT'S INTERRUPTED SUTURE. Description. — (i) The suture is carried across at a right angle to the line of intestinal wound to be closed — the needle picking up a fold on one side of the wound — and a similar fold on the directly opposite side — whereby, when the knot is tied, the serous surfaces of the two lips of the wound are approximated and the edges of the wound are invaginated into the lumen of the gut. (2) The fold of serous, muscular, and part of submucous coats 844 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. picked up will be about 2 to 2.5 mm. ( T V to y 1 ^ inch in width) — the needle emerging about 2.5 to 3 mm. (^ to J inch) from the edge of the wound — enter- ing the opposite lip of the wound at the same distance from its edge and travers- ing the same amount of tissue as on the first side. The sutures will be about 2.5 to 3 mm. ( T L to I inch^) apart. (3) All sutures are placed before any are tied— except that where the line to be sutured is somewhat long, a few sutures may be applied at intervals and at once tied, so as to evenly divide and fix the parts. The knots are not to be tied too tightly (for fear of cutting through or strangulating the parts) — and are cut quite short (so as not to interfere with the process of invagination of the edges). (4) The sutures are generally applied with one long thread and a single needle, cutting the thread at the end of each completed suture. Or numerous needles may be threaded with short lengths of thread. (5) Four temporary traction-sutures, passed through the outer coats of the intestine, placed on the opposite sides of the wound and at each of its ends, if drawn upon in a line with the suturing, will raise two parallel folds which will make the insertion of sutures easier, more rapid, and more regular. They should be placed just to the outer side of the lips of the wound so that the folds caused by their traction will represent the surfaces which are to be approximated by the permanent sutures. (6) For manner of application, see Fig. 592, and also Fig. 593, A. Comment. — The best all around suture. Fig. 593. — Enterorrhaphy by the Czerny-Lembert Interrupted Suture: — A, Interrupted Lembert suture through serous, muscular, and part of submucous coats — applied from without ; B, Interrupted Czerny suture through mucous and part of submucous coats — applied from within. The latter is applied first. (Modified from Esmarch.) ENTERORRHAPHY BY THE CZERNY-LEMBERT INTERRUPTED SUTURE. Description. — (1) By this method the mucous membrane is first sepa- rately sutured with the Czerny suture, the sutures being so introduced as to bring the knots within the lumen — and then the serous, muscular, and part of the submucous coats are united by the ordinary Lembert method. (2) The passage of the Czerny suture is a little difficult if it be desired to have all the knots fall within. The mucous membrane of one side of the wound is caught with delicate forceps and steadied, and, at the same time, drawn forward into view and slightly everted — a curved needle, held in a holder, is then passed from the mucous surface of the mucous membrane outward entirely through that membrane and part of the submucous coat — then the mucous membrane of the opposite edge of the wound is similarly ENTERORRHAPHY BY HALSTED'S SUTURE. 845 seized with forceps, and, while similarly held, except without eversion, the needle is now passed in the reverse direction, from without inward, through part of the submucous coat and the mucous membrane. The two ends of the thread are therefore toward the lumen and, when tied, the knot will be within. When tying the last one or two knots, it will be necessary to protrude them within the lumen with the blunt end of a probe. The above method of applying the sutures is especially necessary in suturing short wounds and in completing the line of circular suturing after resection of the intestine. For two-thirds of the distance in circular enterorrhaphy, following intestinal resection, the Czerny sutures can be readily applied — it is only toward the latter part, when the lumen is almost excluded, that their applica- tion becomes more difficult. If there be any likelihood of the first part of the last one or two knots slipping, make that part a friction-knot. (3) The passage of the Lembert sutures is accomplished in the usual fashion — and, when tied, completely covers in the Czerny sutures. (4) Some surgeons apply the sutures through the mucous membrane in the ordinary manner, tying the knots toward the surface, depending upon the Lembert row to bury them. (5) For the manner of applying the suture, see Fig. 593; also see Fig. 618 (Czerny-Lembert Entero-enterostomy). Comment. — Confusion often exists between the Czerny-Lembert and the YYolfler sutures. They are practically the same. Fig. 594. — Enterorrhaphy by Halsted's Interrupted Quilt (or Mattress) Suture. ENTERORRHAPHY BY HALSTED'S INTERRUPTED QUILT- OR MAT- TRESS-SUTURE. Description. — (1) This is a modification of the Lembert principle — and consists in an ordinary quilt- or mattress-suture (the terms being used synony- mously) so applied that the looped end is upon one side of the wound and the two free ends upon the opposite side — the thread passing through the serous, muscular, and especially a part of the tough submucous coats. (2) As to the manner of their application, each quilt-suture may be regarded as composed of two parallel Lembert sutures, united by the loop. When the knot is tightened, folds of serous surfaces from the two sides are brought 846 OPERATIONS UPON THE AI5DOMINO-PELVIC REGION. into contact— the fold on one side being held by the loops — on the other, by the knots. (3) For manner of application, see Fig. 594. Comment. — It is claimed that these sutures compress the tissues less, take a stronger hold, and approximate the parts more accurately. It is probably the next best interrupted suture to Lembert's. ENTERORRHAPHY BY LEMBERT'S CONTINUOUS SUTURE. Description. — (1) This suture passes diagonally back and forth from side to side, between the lips of the intestinal wound, passing through serous, muscular, and part of submucous coats. When the suture is drawn tight, two folds of serous surfaces, parallel with the edge of the wound, and parallel with each other, are brought into contact. (2) The general principle of the introduction of the continuous Lembert suture follows that of the interrupted Lembert suture — except that the former is applied continuously, and the needle-punctures are made in a direction slightly obliquely to the cut margins Fig. 595. —ENTERORRHAPHY BY THE LEMBERT CONTINUOUS SUTURE. of the intestinal wound — the general rule as to the distances being about the same in both methods. (3) For the manner of application, see Fig. 595- Comment. — The most quickly applied of the regular continuous intestinal sutures (those approximating serous surfaces). ENTERORRHAPHY BY CUSHING'S RIGHT-ANGLED CONTINUOUS SUTURE. Description. — (1) In this suture the thread is carried along in its onward progress exactly parallel with the edge of the wound in the intestine — and when the wound is crossed, the crossing is always directly at right angles to the course of the wound. The suture is everywhere buried except where it crosses the wound, and even this part of the suture is buried by the invagina- tion of the lips of the wound when the thread is drawn tight. (2) Having begun the suture by passing through the serous, muscular, and into the submucous coats, a short distance from and directly opposite one end of ENTERORRHAPHY BY CUSHING'S SUTURE. 847 the wound, the thread is knotted in the ordinary manner — the needle is then carried outside of the intestinal wall onward to a point a short distance to one Fig. 596. — Enterorrhaphy by Cushing's Right-angled Continuous Suture. side of the edge of the wound — passes beneath the serous, muscular, and into the submucous coat, parallel with the edges of the wound — emerges a short distance beyond — crosses, outside, at a right angle to the wound — to a point Fig. 597.— Enterorrhaphy by Combined Overhand Continuous Suture of all the Coats, Followed by Interrupted Lemberts of the Outer Coats : — A, Continuous overhand suture ; B, Interrupted Lemberts. on the other side directly opposite its last emergence — travels similarly for- ward beneath the serous, muscular, and part of the submucous coat for a 848 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. short distance — thence back across the wound at a right angle, to the original side — and thus on to the opposite end of the wound, beyond which it is carried a short distance and then knotted. Before the final knotting the thread is drawn tight, thus infolding the margins of the wound and approxi- mating the serous surfaces. (3) For manner of application, see Fig. 596. Comment. — Cushing's method of knotting, at either end, is unnecessarily complicated. ENTERORRHAPHY BY COMBINED OVERHAND CONTINUOUS SUTURE OF ALL COATS, FOLLOWED BY INTERRUPTED LEMBERT SUTURING OF OUTER COATS. Description.— (i"i This method consists, first, in whipping together the edges of the wound by a simple, running, continuous, overhand suture, passing through all the coats of each margin of the wound, as a preliminary suture of approximation and strength — which is then followed by a secondary tier of generally either the interrupted or continuous Lembert sutures passing through the serous, muscular, and part of the submucous coats. (2) For manner of application, see Entero-enterostomy by simple suturing (page 855), for the general description of the method, — and Fig. 597, for its application to a limited wound. ENTERORRHAPHY FOR WOUNDS OF THE INTESTINE. Description. — Wounds of the intestines may be divided into five classes; (a) Longitudinal wounds, incised or lacerated; (b) Transverse wounds, in- cised or lacerated ; (c) Irregular wounds, incised or lacerated; (d) Complete transverse division of the intestine; (e) Contused wounds. Preparation — Position — Landmarks. — As for median abdominal sec- tion. Incision. — In the majority of cases the incision will be in the median line, as for median abdominal section. If the abdominal wound, which may already exist, lie outside of either rectus, and especially if it be indicated that the wound has not ranged toward the median line, the incision is fre- quently made vertical over the external abdominal wound. Operation. — (1) Having entered the abdominal cavity, the edges of the wound should be well retracted in order to expose the involved coils of intestine. (2) All bleeding vessels should be controlled by clamp and gut- ligature before proceeding to the intestinal operation. (3) If the omentum be found wounded, the lips of the wound should be approximated by gut- suture. (4) Unless the wounded coil of intestine be readily detected, it is best to systematically examine the intestines, beginning at the stomach — lifting the stomach and transverse colon to trace the duodenum — and then, catching up the beginning of the jejunum beneath the ligament of Treitz, follow down the rest of the small and large intestines. (5) Some surgeons clamp each wound, in the case of gunshot wounds, as found — and suture none until all are clamped — in order to control intestinal contents. (6) Coils of intestine temporarily removed from the abdominal cavity should be surrounded with warm, wet, sterilized gauze or towels, with or without a preliminary enveloping with sterile rubber tissue. (7) All escaped intes- tinal contents should be wiped away with gauze, or, if excessive, by irrigation. (8) If the mesentery be wounded, the edges of the wound should be sutured ENTERORRHAPIIY FOR WOUNDS OF THE INTESTINE. 849 with gut sutures. (9) Having brought the involved portion of intestine into the field of operation, the wound is repaired as indicated by the special case. (10) Simple longitudinal wounds are closed by a line of interrupted Lembert sutures. (11) Simple transverse wounds are closed in the same manner as longitudinal ones. (12) In irregular wounds, if consisting of a transverse and longitudinal wound (the two arms crossing each other at a right angle or diagonally) and not too extensive, the part of the transverse wound on one side of the longitudinal wound should be first closed with interrupted Lembert sutures — then similarly the part of the transverse wound on the other side- then the entire length of the longitudinal wound by interrupted Lemberts placed transversely to its length. (See Fig. 598.) Sometimes the two parts of the transverse wound and the ends of the longitudinal are closed as just described — and then the remaining portions of the sides of the longitudinal are sutured after the fashion of suturing the intestine in Enteroplasty for stricture. (See Comment.) Such an irregular wound as that made by a bullet, if not too large, may be treated as an ordinary wound, being sutured with Lembert sutures in such a way as to infold its margins. Sometimes the fc^A Fig. 598.— Enterorrhaphy in Irregular Wounds of the Intestines: — The two limbs of the transverse wound being first sutured with interrupted Lemberts, and then the two limbs of the longitudinal wound. ragged edge of a bullet wound may be advantageously trimmed with curved scissors before suturing. Where destruction has been great, resection of a portion of the intestine, followed by some form of intestinal anastomosis, is generally safer. (13) Complete transverse division of the intestine will necessitate an end-to-end anastomosis, by means of a simple suturing or some mechanical device. (14) Contused wounds, if at all bad, should be treated as lacerated wounds, as the walls of such wounds are rendered of lowered vitality by the traumatism. The contused surface is thus turned into the lumen of the gut by Lembert sutures, where, if sloughing of the portion within the line of sutures occurs, no harm is done. (15) The injury to the intestine having been repaired, the abdomen is closed as in median abdominal section, with or without drainage, as indicated by circumstances. Comment, — (0 Lembert or Halsted interrupted sutures are generally best in suturing intestinal wounds. (2) If any doubt exist as to the efficiency of the first row of sutures, a second tier, generally continued Lembert, may be put in, burying the first. (3) Areas of suspicious suturing may be strength- ened bv suturing over them omental grafts (elliptical pieces taken from the omentum followed by suturing up the lips of the wound thus made in the 54 850 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. omentum) — these are applied over the intestinal suturing and held in place by two or three gut sutures. (4) Resection, followed by an entero-enteros- tomy, is preferable to any form of suturing, if by such form of simple suturing the lumen of the gut will be reduced to less than half its diameter. (5) Trans- verse suturing interferes less with the vascular supply than the longitudinal — especially when the longitudinal is near the mesenteric border. (6) A longi- tudinal wound of considerable length, and more or less breadth, the ordinary suturing of which might reduce its calibre too greatly, may be repaired by what is termed "elbowing" (such as is seen in the joining of segments of stove pipes). The intestine is bent somewhat upon itself, the center of the bending being the center of the wound — then one half of one side of the wound is joined, by interrupted Lembert sutures, to the other half of the same side — and the same steps are carried out on the opposite side. - This is applicable only to wounds on or toward the antimesenteric border. The edges of the wound may be sometimes trimmed prior to suturing. Too great narrowing, as might result from simple suturing, or even resection, is hereby avoided. PARTIAL ENTERECTOMY. Description. — By partial enterectomy is meant the excision, or resection, of a part of the intestinal canal, with or without the excision of the corre- sponding portion of the mesentery. By prefixing the name of the part of the canal, the site of the partial excision is designated — Partial Duodenectomy, Jejunectomy, Ileectomy, Caecectomy, Colectomy (ascending, transverse, or descending), Sigmoidectomy, Rectectomy. By the term Enterectomy alone is usually understood an excision of some part of the small intestine. As, of course, excision of the whole intestine is never considered, Enterectomy is generally used in the sense of a partial excision, without the preceding word "partial." Enterectomy carries with it the idea of three operations — partial excision of the intestine — partial excision, or incision, of the mesentery — intestinal junction. The operation is generally resorted to where the disease or injury to a part of the intestine, or its mesentery, is so extensive that a portion of the intestine must be cut out and sacrificed. Preparation — Position — Landmarks — Incision. — As for median ab dominal section (page 631). Operation, — (1) Having opened the abdomen, the portion of intestine involved is brought out into the field of operation. (2) Before excising any portion of the intestinal tract, the contents of that part should be removed from it as much as possible — which is best accomplished by " milking" the intestines in opposite directions from a central point, the center of the part to be excised — and then clamping the intestines, proximally and distally, beyond the site to be removed. Various forms of clamps are used for this purpose, which may be divided into three categories; — (A) Special intestinal clamps, which are generally best (Figs. 600, C, and 599) ; — (B) Improvised clamps may be used, such as: (a) Pierce the mesentery near the intestinal border with the closed ends of a pair of forceps — grasp a small rubber tube in the bite of the forceps and draw it through the mesentery — and tie the two ends over the intestine (Fig. 600, E) ; (b) Pass a sterilized wooden toothpick through the mesentery, near the intestine, and make a figure-of-8 with a rubber band over it, compressing the intestine between toothpick and rubber band (Fig. 600, D) ; (c) Pass the pin of a safety-pin through the mesentery, near PARTIAL ENTERECTOMY. 851 the intestine — and fasten, in the act of closing the pin, a small piece of flat sponge over the intestine (Fig. 600, A) ; (d) Pass a piece of gauze through the mesentery, near the bowel, and tie over the intestine after the fashion of the rubber tube in (e) above: — (C) The thumb and index of each hand of an assistant may be used to compress the intestine in the position a pair of clamps would occupy — after having pressed away the intestinal contents (Fig. 600, B) . (3) The indicated portion of the intestine is now excised — by dividing the gut on either side of the segment to be removed, with scissors or knife, exactly at a right angle to the length of the intestine at the part divided — so that the cut ends may be afterward approximated without any tension at either mesenteric or Fig. 599. — Partial Enterectomy: — The excision of a part of the small intestine is shown, with the excision of a corresponding V-shaped portion of mesentery. The intestine is divided at a right angle to its length, between two clamps at either end of the excised area. The main mesenteric vessels are ligated prior to section. antimesenteric aspect (Fig. 599) . (There is somewhat greater retraction of the antimesenteric border naturally.) Division of the intestine with a knife is better than by means of scissors, which latter compress the edges somewhat. It is well to have, if possible, a good artery left just to the proximal side of the proxi- mal intestinal incision, and one on the distal side of the distal intestinal incision — to furnish nourishment to the uniting edges. The triangular space, at the 8 5 2 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. separation of the leaves of the mesentery, will be opened up — and care should be exercised not to bare the intestinal tube further than necessary. (4) The treatment of the mesentery corresponding with the excised portion of the intestine differs — one of the following methods may be used: — (a) Probably the best plan, after having excised the portion of intestine, is to remove a triangular or V-shaped piece of the mesentery — whose base will be a little narrower than the section of the intestine removed — whose sides will pass down obliquely toward each other in the direction of the root of the mesentery, but meeting midway between the two free ends of the intestine and before Fig. 600.— Methods of Controlling the Intestinal Contents di-ring Partial En- terectomy :— A, Maunsell's method by means of sponge and safety-pin ; B, Digital compression ; C, Special intestinal clamps ; D, Toothpick, or similar object, piercing the mesentery, with an ordinary rubber-band passed over it in figure-of-eight fashion ; E, Rubber tube passed through mesentery and tied over the intestine. (Whichever method of control be used, the same method is generally applied on each side of the area to be excised.) reaching the root of the mesentery. The division is made with a knife or scissors, from a line with the free ends of the divided intestines at their mesen- teric borders — taking care to preserve the artery supplying the free end of the intestine, proximally and distally. In suturing, the edges of the cut mesentery are approximated with gut by continuous or interrupted suture (Fig. 601, A and B). Or the edges may be slightly overlapped and then sutured, uniting laterally (Fig. 601, C). All vessels which fall along the line of division of the mesentery, whose position is shown through the thin mesentery, should be ligated, proximally in advance of the division— by passing a curved needle armed with gut, beneath them, — or the vessels may PARTIAL ENTERECTOMY. 853 be clamped immediately after division and then ligated (see Fig. 372). This method is especially advisable in malignant disease where the mesenteric glands may be involved, (b) Another method is, after dividing the intestine at both ends, simply to cut away the excised portion close along the mesenteric attachment, after having ligated its vessels as in the above method. In suturing, the redundant mesentery is simply folded upon itself and a few gut sutures passed from side to side, along the angle of junction with the rest of the mesentery — and by whipping the free margins with a gut suture, to prevent a hernia occurring through the opening. This method probably insures a better blood-supply to the intestine (Fig. 601, D). (c) In addition to the steps mentioned in the last method, the entire triangular fold may Fig. 001.— Methods of Suturing the Mesentery in Partial Enterectomy : — A, A V-shaped portion of mesentery excised, with suturing of edge to edge by continuous suture ; B, Same with suturing of edge to edge by interrupted sutures; C, Same, with edges overlapped by running suture; D, Mesentery left intact, with free edges sutured together by continuous overhand stitch ; E, Same, with suturing of both free border and free fold of redundant mesentery to main mesentery, together with closure by continuous suture of entrance to mesenteric pocket. Note — Several mesen- teric vessels are shown ligated, by the passage of needle and gut-ligature beneath them. be sutured back to the general mesentery by sutures along its folded border, as well as along its free border (Fig. 601, E). Comment. — Partial Enterectomy is an incomplete operation in itself — and naturally carries with it the idea of suturing together the two free ends of the intestinal canal left open after the excision, and thus repairing the intestinal tract — but since the junction of these two ends is accomplished by a separate and distinct operation, it will be treated of separately. (See Entero-enterostomy.) 854 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. ENTERO-ENTEROSTOMY. INTESTINAL ANASTOMOSIS, APPROXIMATION, AND IMPLANTATION, IN GENERAL. Intestinal Anastomosis was originally applied to the operation of estab- lishing a communication between the intestine above and the intestine below the seat of obstruction, without the removal of the portion of intestine in which the obstruction was situated. As a result, the larger part of intestinal contents would tlow by the new route, thus "short-circuiting" the obstruction, while the smaller portion would flow through the partially obstructed canal, until the obstruction was relieved or became complete. As, in such cases, no portion of the intestine was removed, the Anastomosis was always a Lateral Anastomosis, that is, the joining of the lateral aspect of one coil with the lateral aspect of another coil. Subsequently, however, Intestinal Anastomosis came to be used, by many surgeons, in the same sense as Intes- tinal Approximation, and applied to both end-to-end and to lateral joinings. Intestinal Approximation was originally used to signify the union of the portions of the intestinal tract following the excision of a part of the canal — the approximation being either end-to-end or lateral. In End-to-end Intestinal Approximation, after the excision of a part of the intestine has been accomplished, the free ends of the intestine above and below are ap- proximated and united. In Lateral Intestinal Approximation, after the partial enterectomy has been performed, the free ends of the intestine above and below are closed by suture, and then the lateral aspect of the closed upper end is approximated and united to the lateral aspect of the closed lower end. Intestinal Implantation has generally been used to signify the implanta- tion, or union, of the end of one piece of intestine into an opening in the lateral, antimesenteric aspect of another coil — following the excision of a seg- ment of intestine. This process of union imitates the union of the ileum with the colon (caecum). Entero-enterostomy signifies the junction of the lumen of some part of one intestinal coil with the lumen of some part of another. Strictly speaking, therefore, Entero-enterostomy is a term of broader significance than those above used, and includes Anastomosis, Approximation, and Implantation. No hard- and-fast rule, however, exists as to the use of the terms designating the union of coils of intestine, but the shades of difference expressed in the terms Intestinal Anastomosis, Approximation, and Implantation might probably be more accurately expressed by the terms Entero-enterostomy by Lateral An- astomosis — Entero-enterostomy by End-to-end Approximation —Entero-en- terostomy by Lateral Approximation —Entero-enterostomy by End-in-side Implantation. While, therefore, Entero-enterostomy expresses the junction of lumina of segments of intestine, the method of that junction is best expressed by following the term with some qualifying words. The Scope of the Methods of Intestinal-joining.— Many of the methods used for variously uniting segments of the intestines to each other are also used to unite portions of the intestines with different parts of the stomach — and also with the gall-bladder. The range of usefulness of any method of intestinal joining, therefore, is measured by the ability of that special method to meet the requirements of the following operations involving the intestines:— Entero- enterostomy by Lateral Anastomosis; Entero-enterostomy by End-to-end Approximation; Entero-enterostomy by Lateral Approximation; Entero-en- EXTERO-ENTEROSTOMV BY SIMPLE SUTURING. 855 terostomy by End-in-side Implantation; Simple Gastro -enterostomy (by lateral anastomosis, or end-in-side implantation); Gastro-enterostomy fol- lowing pylorectomy; Cholecystenterostomv. The Methods of Accomplishing Intestinal Joinings. — (1) Union of portions of Intestinal, Gastro-intestinal, and Cholecyst-intestinal tracts by simple suturing; — (2) Union of portions of Intestinal, Gastro-intestinal, and Cholecyst-intestinal tracts by absorbable mechanical devices; — (3) Union of portions of Intestinal, Gastro-intestinal, and Cholecyst-intestinal tracts by non-absorbable devices; — (4) Union of portions of Intestinal, Gastro-intes- tinal, and Cholecyst-intestinal tracts by mechanical means temporarily used during suturing. Note. — In the various operations of Entero-enterostomy it is not necessary that any previous excision (partial enterectomy) must have been done — though such an excision may have been done. In the following operations of Entero- enterostomy the joining of the portions of intestine will (to make the operation more complete) be supposed to follow, in the majority of cases, excision of some part of the gut. Of course, the same operations which are applicable after the excision of a part of the intestine are also applicable after a circular division (circular enterotomy) of the gut without any excision of a part of the canal. (A) ENTERO-ENTEROSTOMY BY METHODS OF SIMPLE SUTURING IX GENERAL. Union is here accomplished by the ordinary methods of suturing, unaided by mechanical devices other than sutures. (1) For the general principles of intestinal suturing, see Enterorrhaphy in General. (2) Fine silk or fine chromic gut may be used throughout. Or silk may be used for the first tier and chromic gut for the second. This applies whether the first tier includes all the coats or only the mucous membrane. (3) Some surgeons prefer to use only interrupted sutures throughout in intestinal suturing— upon the ground that in continuous suturing (especially when of silk) the size of the opening becomes more or less fixed and less capable of the distention which, on the other hand, may readily occur in all forms of inter- rupted sutures. (4) It is well to bear in mind that sometimes Lembert inter- rupted sutures which may appear to be near enough in the undisturbed condi- tion of the gut become too far apart when it is distended. (5) No matter what form of suturing be used for the first tier, the second tier should include only the serous, muscular, and, if possible, part of the submucous coats — and should bury in the first tier. (6) Difficulties encountered in placing sutures may be largely overcome by seizing the site to be sutured with delicate forceps and thus causing that part to meet the needle with its proper aspect rendered prominent by eversion, inversion, traction, etc. (7) When segments of unequal size are to be approximated end-to-end, the only way this can be done by simple suturing is either, (a) to partially close the opening of the larger gut down to the size of the smaller, which maybe accomplished by taking a V-shaped piece out of the antimesenteric aspect of the larger gut and then suturing together the edges of the V before making the junction,— or (b) by cutting the opening of the smaller gut obliquely (Wehr's method) instead of transversely, at the expense of the 856 OPERATIONS UPON THE ABDOM1NO-PELVIC REGION. free border, and thus increasing its size to match the larger gut. The best methods, however, of uniting segments of unequal size are probably either by the Murphy button or the Maunsell method. ENTERO-ENTEROSTOMY BY SIMPLE CONTINUOUS OVERHAND SUTURE OF ALL COATS, FOLLOWED BY INTERRUPTED OR CONTINUOUS LEMBERT SUTURES OF OUTER COATS. Description. — The first tier of suturing is for approximation and strength — the second, for union of the serous surfaces and occlusion of the intestinal lumen. Preparation — Position — Landmarks — Incision. — As for median ab- dominal section. Fig.602.— Entero-enterostomy by Simple Continuous Overhand Suturing of All Coats, FOLLOWED BY INTERRUPTED OR (CONTINUOUS) L.EMBERT SUTURES OK OUTER COATS : — A method of holding the intestine and introducing the first tier of simple continuous overhand suturing of all coats. Author's method. End-to-end Approximation — Author's Method. — (1) Open the ab- domen — isolate and bring forward the indicated coil of intestine — press away the intestinal contents — apply intestinal clamps, proximally and dis- tally, to the site to be excised — and excise the portion of intestine, with or without the corresponding portion of mesentery (see Enterectomy). The two ends of the intestine are now brought into convenient apposition EXTERO-EXTEROSTOMY BY SIMPLE SUTURING 857 for suturing, and are held in apposition during the placing of the first tier of sutures. (2) The first row of continuous suturing passes through all the coats of proximal and distal segments of intestine, and consists of a continuous silk or gut suture carried upon a straight needle held in the fingers. The surgeon holds the approximated borders of the two coils of intestine over the radial aspect of his left first finger, approximating the op- posite borders with the left second finger and thumb (or holds them over his Figs. 603-605. — Details of Simple Continuous Overhand Suturing of All Coats, shown in Fig. 602: — A, Manner of knotting and beginning suture, at a — traversing posterior edges of intestines — and including lamina? of mesentery at b, whence the suture starts to return ; P.. Manner of traversing anterior edges of intestines— and ending the suture at a, preparatory to knotting ; C. Manner of tying final knot of first tier of sutures at a, and appearance of suture-line and approximated leaves of mesentery. Author's method. left second finger, approximating with his left index and thumb). (See Fig. 602.) Four thicknesses of gut are thus brought together, two from the prox- imal and two from the distal end of the divided intestine. The adjacent aspects of the apposed edges should be first sutured. (See Fig. 603, A.) The needle should first enter at the antimesenteric borders, the first stitch being so placed as to leave the free end of the suture, after knotting, on the outside, which is done by beginning the stitch from without and then passing the needle back into the lumen after tying the first knot. After the needle has passed back into the lumen it should always, in going toward the mesenteric attach- ment, travel from within outward through the wall of the intestine on the right (nearer the operator)— then from without inward through the wall of the intes- tine on the left (further from the operator) — and so on, descending toward the mesenteric aspect. The last stitch, before beginning the return, includes, besides the two thicknesses of the gut, also the two laminae which are adjacent (one 858 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. from the proximal and one from the distal portion of gut) . And the first stitch, after beginning the return, includes, besides the two thicknesses of gut, also the two laminae of mesentery (one from the proximal and one from the distal por- tion of gut) which are furthest from each other at the taking of the stitch, but which will be brought into contact by the stitch. (See Fig. 604, B.) The suturing is then continued back to the antimesenteric aspect in an overhand stitch, as before — passing, now, from without inward through the wall of the intestine nearer the operator, and from within outward through the wall of the intestine further from the operator. When the last stitch is reached, its free end on the outer side is knotted to the free end left on the outer side at the start. Fig.606.— Entero-enterostomy by Simple Continuous Overhand Suturing of All Coats, FOLLOWED BY INTERRUPTED (OR CONTINUOUS) LEMBERT SUTURES OF OUTER C OATS :— A method of holding the intestine and introducing the second tier of interrupted Lembert sutures, which is seen burying in the first tier of continuous overhand suturing. The assistant's hands are held in pronation while suturing the anterior, and in supination while suturing the posterior aspect. (See Fig. 605, C.) During the return-row of suturing care is taken that the stitches do not penetrate the coats already whipped together by the first row — which is easily avoided, as the edges are all in plain view as each needle-punc- ture is made. (3) The second row of suturing consists of interrupted Lembert sutures passing through the serous and muscular, and probably also the sub- mucous, coats. The sutures are silk or chromic gut, carried upon a straight needle held in the fingers. The barrel of intestine is now held out straight by an assistant, who grasps it about 10 cm. (4 inches) on either side of the suture line — while the operator picks up a transverse fold of the gut wall near the origi- nal suture line by means of delicate forceps held in his left hand — and a similar fold just beyond the suture-line — passing the needle through both folds in the ordinary Lembert fashion. (See Fig. 606.) One half of the circumference of the gut is sutured from one side, after which the intestine is turned over and the other half sutured from the opposite side. The sutures are inserted in the EXTERO-ENTEROSTOMY BY SIMPLE SUTURING. 859 usual manner of the Lembert method — the forceps picking up the tissue in transverse folds and thus drawing it away from the opposite wall, thereby mak- ing the passage of the suture easier, and the penetration of the opposite wall impossible. Especial care is necessary as the diverging lamina 1 of the mesentery are encountered, in order that each lamina may be closely approximated to the barrel of its own segment of intestine and to the opposite lamina on the same side of the intestine. The Lembert sutures should, therefore, be continued on Figs. 607 and 60S. — Entkroenterostomy by Simple Continuous Overhand Suturing of All Coats, followed by Interrupted (or Continuous) Lembert Sutures of Outer Coats: — A. Another method of holding the intestines and introducing the first tier of simple continuous suturing of all coats; B. Diagram showing manner of introducing the three preliminary traction- sutures. Author's method. down to the very junction of the mesentery with the intestine and slightly beyond. Note. — Instead of holding the intestines as above described during the placing of the first tier of sutures. >everal methods of holding them in apposition may be employed. Three interrupted sutures may be placed and knotted in loops as temporary traction-sutures — each including all the coats of the two adjacent walls of the proximal and distal segments of intestine — one placed at the mesenteric aspect — and the other two dividing the circumference of the severed ends into three equal parts. An assistant now draws these three loops in different directions (which a single assistant can do by hooking them over his fingers, if the loops are not too long) — whereby two objects are accomplished; — one-third of the margins of each gut are brought into contact, — and the mar- gins of the other two-thirds are held out of the way (and thus the penetration of their wall by the needle rendered impossible). While held in this manner, the adjacent margins of each third are whipped together by a continuous overhand S6o OPERATIONS UPON THE ABDOMINO-PELYIC REGION. suture — after which the temporary traction-loops are cut and withdrawn (or may he tied and cut short, as permanent interrupted sutures reinforcing the continuous ones). (See Figs. 607 and 608.) The second tier of interrupted Fig. 609. — Lateral Intestinal Approximation by Simple Continuol t s Overhand Suturing of all Coats, followed by Interrupted (or Continuous) Lembert Sutures of Outer Coats: — I. — Manner of placing posterior sutures: A, Showing manner of placing sutures along posterior aspect and at ends of incisions; R, Manner of holding end of intestine between thumb and index while placing sutures; C, Manner of holding the ends with temporary traction-sutures passed through outer coats, while invaginating. Lembert sutures is applied as just described. Or' the traction sutures may be retained until the Lemberts are placed, to draw the edges parallel. Lateral Approximation. — (1) Excise the indicated portion of intestine, with or without the corresponding piece of mesentery, as described under Enterectomy. (2) The proximal and distal free ends of the intestine are now each closed by one of the following methods; — (a) Hold the free end of the in- testine between the left thumb and index, and whip together the parallel walls by an overhand continuous suture of all the coats — followed by an invagination of this line of suturing by means of a line of interrupted or continuous Lemberts (see Fig. 609, B). — (b) Pass a traction-suture at the mesenteric aspect, and another at the antimesenteric aspect, near to but not quite at the free margins — and, while these are drawn upon by an assistant, whip the free edges together as above — and, while further drawing upon them, invert the first suture-line with a probe, and place a row of Lemberts so as to permanently invaginate the first tier (see Fig. 609, C). — (C) The free ends of the intestine may be closed by a ENTERO-EXTEROSTOMY BY SIMPLE SUTURING. 86l continuous overhand suture of all the coats, while the walls of the intestine are still held in contact by the special forceps grasping the whole width of intestine, and along which they have been divided in the operation of enterectomy — fol- lowed by an invaginating Lembert tier, as above (see Fig. 610, B). — (d) The free end of each piece of intestine may be gathered together by an ordinary purse-string suture — and this first tier then further invaginated by a second tier of Lemberts, as above described (see Fig. 610, C). (3) Having closed the open ends of the gut, approximate these ends so that they overlap about 5 to 7.5 cm. (2 to 3 inches), with their antimesenteric aspects in contact — and have an assistant hold them in this position. The lateral aspects of the coils of intes- tine may be held in approximation by the hands of an assistant during the sutur- ing; — but the contact can be made more satisfactory, and the likelihood of leakage Fig. 610. — Lateral Intestinal Approximation by Simple Continuous Overhand Suturing of all Coats, followed by Interrupted (or Continuous) Lembert Sutures of Outer Coats: — II. — Manner of placing anterior sutures. A, Showing manner of carrying suture around ends and along anterior aspect of incisions; B, Manner of holding end of intestine with clamp-forceps while suturing; C, Manner of closing end of intestine with purse-string suture preparatory to placing final tier of end-sutures. less, by the use of special intestinal clamps (Fig. 611). (4) Place a tier of con- tinuous Lembert suturing of gut, carried upon a curved needle held in a needle- holder, along what will be the posterior line of union between the serous sur- faces — extending the line of suturing out at either end, in a somewhat elliptical form, beyond the limits of the future incision — leaving one end of the suture, after knotting, long and free — and the other end, also after half knotting, long and threaded upon the needle. (See Fig. 609.) (5) Incisions in the long axis of both pieces of intestine are now made opposite each other in the correspond- ing aspects of the guts — and sufficiently far from the posterior suture-line to leave two free edges for suturing — and equidistant from what will form the anterior suture-line of the serous surfaces. These incisions will begin and stop short of reaching the outer limits of the surrounding Lembert suture-line which will enclose them. (6) The corresponding free margins of the wounds are now 862 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. sutured with continuous overhand silk suture, carried in a curved needle held in a needle-holder. Begin the suturing at the right end of the posterior aspect (furthest from operator) — knot the suture and leave one end of the thread free — and continue the suturing toward the operator, until the posterior lips are united. Having reached the limit of the posterior aspect of the opening, the direction of the suturing now changes and is made to traverse the anterior aspect of the wound, similarly whipping together the anterior lips of the intestinal incisions from left to right, away from the operator — until the point of begin- ning is reached, when the end from which the needle lias just been withdrawn is knotted to the end previously left free — thus completely approximating the lips of the openings throughout. (7) The threaded needle of the original serous Fig. 6n. — Lateral Intestinal Anastomosis by Simple Continuous Overhand Suture of all Coats, followed by Interrupted (or Continuous) Lembert Suturing of Outer Coats, Aided by Intestinal Clamps: — The posterior seromuscular suture is shown with knot at its right end and needle on its left end; — The inner through-and-through suture is seen, with its right end knotted and its left end free. suture, which had been temporarily dropped, is now taken up — and this line of continuous Lemberts is carried on around the outside of the line uniting the edges, at the same distance from their edge as the posterior serous line passed — until the free end of line of serous suture, left at starting, is reached, when they are knotted together, — which completes the union between the intestines. (See Fig. 610.) (8) The mesentery is now sutured as indicated. Lateral Anastomosis. — The operation is here performed in a precisely similar manner to the last (Lateral Approximation) — omitting the excision of any portion of the intestinal canal— the antimesenteric aspects of the gut being brought into apposition. Care is taken that the intestinal coils are not twisted out of their natural relations. (See Fig. 612.) ENTERO-ENTEROSTOMY BY SIMPLE SUTURING. 86 3 Note. — In Lateral Approximation and Lateral Anastomosis, in order to prevent bagging, and sagging away of the intestines near the site of union, it is well to slightly scarify and suture (or suture alone) the free portions of the in- testine together for about 2.5 cm. (1 inch) on either side of the union. End-in-side Implantation.— (1) Following excision (for example, of the caecum) the free end of the intestine, the lateral aspect of which is to receive the implanted gut, is closed by a double line of suturing in precisely the same man- ner as described under Lateral Intestinal Approximation. (2) An incision is Fig.612 — Lateral Intestinal Anastomosis by Simple Continuous Overhand Suturing of All Coats, followed by Interrupted (or Continuous) Lemberi Sutures of Cuter Coats : — A, Simple continuous overhand suture of all coats; B, Continuous Lembert suture of outer coats. The intestinal current passes as indicated by arrows, "short-circuiting" the cancerous growth. made near the end of the invaginated gut corresponding with the end of gut to be implanted. (3) The open end of the gut which is to be implanted (usually of smaller calibre) is now brought into apposition with the incision upon the antimesenteric aspect of the gut which is to receive the implantation, at about 5 cm. (2 inches) from its sutured end — and held in contact by an assistant throughout the operation. A line of continuous overhand silk sutures, carried upon a curved needle held in a needle-holder, is placed through all the coats of both pieces of the intestine, in exactly the same manner as described under the Lateral Approximation operation, the difference in the direction of apposi- tion of the two pieces of gut in the end-in-side implantation making no differ- ence in the manner of application of the sutures. Interrupted sutures may be used instead of the continuous. The margins of the end-opening in one piece of intestine and the lateral openings in the other are thus brought together throughout. (4) A continuous or interrupted Lembert suture is now carried through the serous and muscular (and probably into the submucous) coats of the two pieces of intestine, in such a manner as to surround the first line of through-and-through suture in a somewhat elliptical fashion. (5) The mesen- teric borders are sutured in such a manner as to leave no opening through which coils of intestine may pass. (See Fig. 613.) 86 4 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Note. — (i) The same ultimate method of union may be accomplished in a somewhat different order. The serous surface near the free margins of the smaller gut may be attached, by Lembert sutures, to the serous surface of the invaginated gut, in such a position as to correspond with the future opening — the attachment being first along the posterior aspect, as in Lateral Approxima- tion. An opening is then made by incision into the invaginated end corre- sponding with the partly attached free end of intestine. The free edges of the opening are then united throughout by continuous silk suture — after which the continuous or interrupted Lembert suture of the serous surfaces is carried around the anterior aspect of the opening — thus completing the union. (2) The process of union may be mechanically aided by using Senn's rubber band as a temporary ring within the segment of intestine to be implanted — where it is held for a time by gut sutures — and is afterward liberated and passed down the canal. Fig. 613.— End-in-side Intestinal Implantation by Simple Continuous (or Interrupted) Overhand Suturing of All Coats, followed by Interrupted (or Continuous) Lembert Sutures of Outer Coats :— A, Ileum ; B, Ascending colon ; C, C, Interrupted sutures of all coats of both intestines; D, Continuous suture of outer coats. END-TO-END ENTERO-ENTEROSTOMY BY PERFORATING MATTRESS SUTURES KNOTTED IN THE LUMEN. connell's method. Description. — Interrupted mattress sutures are so carried through all the coats of the intestine and tied as to bring all the knots within the intestinal lumen. END-TO-END ENTERO-ENTEROSTOMY. 86 5 Preparation— Position— Landmarks— Incision.— As for median abdom- inal section. Operation. — (1) The mesenteric, the most important, suture is placed in the following manner (Fig. 614, A) ; — The needle (calculating that the stitches are 3 mm. (^ inch) apart and the same distance from the free edge of the intestine) passes through all the coats of one end of the intestine, from within outward — into the free space between intestine and leaf of the mesentery — through this left from within outward — over to the opposite leaf of the mesen- tery — through this from without inward — through the free space between mesenteric leaf to the intestine — through all the coats of the other end of the intestine, from without inward — thence, returning, the needle and thread take a corresponding course — to emerge parallel with the thread of entrance, within the lumen of the original end of the intestine — ready to be tied. This stitch approximates the leaves of the mesentery to the barrel of the intestine, and the two ends of the intestine to each other. (2) Four traction-sutures are inserted, dividing the intestinal circumferences into thirds, for the purpose of aiding in the mechanical insertion of the remaining mattress sutures. Two are placed Fig. 614. — End-to-end Entero-enterostomy by Connell's Method: — I. — A, Mes- enteric stitch; B, B, Interrupted mattress sutures through all coats of both ends of intestine, knotted within the lumen. as indicated at A and B, Fig. 615. These pass through all the coats of both ends of the intestine, and are separated from each other one-third of the cir- cumference of the intestine. By traction upon them the walls of the intervening third of the end of each piece of intestine are put upon the stretch and made parallel, thus rendering them easy of access for the placing of the sutures for that third. Upon the completion of this third, traction-suture B is carried toward the position formerly occupied by traction-suture A, and traction-sutures C and D are brought together and drawn in the opposite direction— which will make the second third of the intestinal margins occupy the position originally occupied by the first third. The last third is brought into line and sutured in the same way, with the modification to be mentioned. (3) The sutures pass through all the coats of both of the intestinal ends, as shown in Fig. 614, B, B, and in Fig. 615, E, and are knotted as soon as placed. (4) The suturing is thus rendered very easy until the circumference has been nearly traversed. In the suturing of the last third there is greater mechanical difficulty, owing to the lessened working-room. It is best to place the sutures of this third before tying them. When this is done,— all are tied except the last one. The closure 55 866 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. A- A- ^ Fig. 615. — End-to-end Entero-enterostomy by Connell's Method: — II. — A, B, Traction-sutures drawing margins of first thirds of intestines parallel; C, D, Traction-sutures to be used in parallelling remaining thirds of intestinal margins; E, One of the interrupted mattress sutures placed, ready to be tied. Fig. 616. — End-to-end Entero-enterostomy by Connell's Method: — III. — Insertion of needle, eye-end first, through interval between sutures — projecting through interval left by yet untied last mattress suture — the threads of which are within loop made by needle and its thread, ready to be drawn out through place of entrance of eye-end of needle. ENTERO-ENTEROSTOMY BY CZERNY-LEMBERT SUTURE. 867 represented by the last stitch is accomplished in one of two ways: — (a) The author of the technic completes the tying of the last mattress stitch by insert- ing a threaded needle, eye first, between two sutures of an opposite aspect of the circumference (Fig. 616) — the eye-end of the needle is protruded through the opening left by the last stitch — the two threads composing this last stitch are then carried through the noose made by the shaft of the needle and its double thread — after which the needle is withdrawn, carrying the two threads of the last stitch with it — which are then knotted and cut short — during which process the walls of the lumen are approximated — and regain their normal relation upon the cutting of the knot — the serosae separated by the entrance of the eye-end of the needle also coming together, (b) The opening repre- sented by the last suture can, however, be more simply closed by a sero-mus- cular mattress suture, as suggested by Gould, Fig. 617. Fig. 617. — End-to-end Entero-enterostomy by Connell's Method: — IV. — Gould's method of closing interval left by last mattress suture in Connell's operation, by means of a sero- muscular mattress suture. (Redrawn from Gould.) ENTERO-ENTEROSTOMY BY THE CZERNY-LEMBERT INTERRUPTED SUTURE. Description. — The edges of the mucous coat are brought together by the interrupted Czerny suture, which passes through this coat alone — followed by the ordinary interrupted Lembert suture through the serous, muscular, and part of the submucous coats. The method of application is the same as that described under " Enterorrhaphy by the Czerny-Lembert interrupted suture" page 844). Preparation — Position — Landmarks — Incision. — As for median ab- dominal section. End-to-end Approximation. — (1) The ends of the intestines are held in convenient apposition — as described in the same operation by the last method. The suture consists of silk or gut, carried upon a curved needle held in a needle- holder. The manner of manipulating is described under Enterorrhaphy by this method. The sutures are interrupted and are introduced and knotted from within, in the Czerny fashion. When the circular enterorrhaphy is almost completed, the last suture or two are somewhat more difficult to place, owing to the tendency of the knot to remain upon the outer aspect — which may be allowed, as this tier will be subsequently buried in — or, better, maybe in- 868 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. vaginated within the lumen of the gut by a probe. (See Fig. 618, B.) (2) Having completed the first or mucous tier of sutures, the second or outer tier of interrupted Lemberts is carried through the serous, muscular, and part of the submucous coats — and consists of silk or gut carried upon a straight needle held in the fingers — and is introduced in every respect as the interrupted Lemberts are introduced in the method just described. (See Fig. 618, A.) Lateral Approximation —Lateral Anastomosis — End-in-side Implan- tation. — The methods of holding the segments of intestines in contact and the general principles of completing the entero-enterostomy are the same as in the corresponding operations by the overhand continuous suture of all the coats, followed by the interrupted or continuous Lembert suturing of the outer coats Fig. 618 — Entero-enterostomy by the Czerny-Lembert Interrupted Siture: — B, Czerny interrupted suture passing through mucous and part of submucous coats — applied from within ; A, Lembert interrupted suture passing through serous, muscular, and part of submucous coats — applied from without. — with the exception that the first tier of suturing, in the present method, is of the mucous coat alone, and the second tier of the outer coats. Note. — The Czerny suture should include some of the submucous coat, to hold well. ENTERO-ENTEROSTOMY BY HALSTED'S METHOD OF INTERRUPTED MATTRESS SUTURES. Description. — The opposite intestinal walls are brought and held in con- tact by a single tier of the characteristic Halsted mattress or quilt interrupted suture, passing through the serous, muscular, and part of the submucous coats. The general method of application of this form of suturing to circular enteror- rhaphy is identical with the method described under "Enterorrhaphy by Halsted's interrupted mattress suture" (page 845). In the end-to-end ap- proximation, six " presection sutures " are used additionally. Preparation — Position — Landmarks — Incision. — As for median ab- dominal section. End-to-end Approximation. — The details of the application of the Halsted sutures in performing entero-enterostomy without artificial aids are precisely the same as employed in the Halsted operation of entero-enteros- tomy by means of an inflatable rubber cylinder. The technic of the opera- tion, therefore, will be found under the latter head — and may be used here, ENTERO-ENTEROSTOMY BY HALSTED SUTURE. 869 omitting the use of the cylinder, and accomplishing the junction of the seg- ments of intestine by end-to-end approximation by means of simple suturing. The ends of intestine to be approximated are, in this case, simply held in con- venient contact by an assistant — the steps are otherwise the same as in the more elaborate operation. Lateral Approximation. — (1) Having excised the required portion of in- testine, the free ends of both pieces of gut are closed by a single row of the Hal- sted interrupted mattress sutures, introduced in the Halsted manner (see Fig. 619). (2) The antimesenteric aspects of the two pieces of intestine are then held in contact at about 5 cm. (2 inches) from their free ends. A posterior row of interrupted Halsted sutures is now placed along the line which is to form the posterior boundary of the intestinal junction, generally being about eight in number. At either end of this line two additional sutures are placed, coming slightly more forward, in continuation of the posterior longitudinal line in a for- ward curve. All of these sutures are first placed before any are tied — and then all are tied before placing the final ones. (See Fig. 619.) The anterior row of interrupted sutures is now similarly placed before any are tied — and so planned as to form an elliptical figure surrounded by sutures. (3) The sutures forming the anterior row are now drawn apart in the center (without drawing any of them entirely out), and a longitudinal opening is made in each gut, midway between the two lines of sutures and not extending quite to the ends (so as to be - c Fig. 619.— Lateral Intestinal Approximation by Halsted's Quilt Sutures: — A, Show- ing posterior line of sutures, and end sutures beginning to outline an ellipse; B, Line of future in- cision into intestine, corresponding to similar line on opposite intestine ; C, C, Ends of intestines closed by same kind of sutures. t. Modified from Halsted.) well included within the enveloping line of sutures). (See Fig. 620.) (4) The sutures forming the anterior line are now knotted — thus completely apposing the site of union and enclosing the common opening between proximal and distal segments. (5) The edges of the mesentery are treated as indicated. Lateral Anastomosis. — The operation is here performed in every respect exactly as in Lateral Approximation, except that no excision of intestinal tract is done — and, consequently, no invagination of free ends of intestine is re- 870 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. quired. Two convenient antimesenteric aspects of intestine are brought to- gether and the union made at once by the method of suturing just described. End-in-side Implantation. — If this somewhat unusual operation be called for, it is accomplished in the following manner; — the free end of the bowel to be implanted is brought into contact with the antimesenteric aspect of the portion of bowel to receive the implantation (the free end of which has been closed as in Lateral Approximation) — while held in this relation, the interrupted Hal- sted sutures are placed, passing from just beyond the edge of the opening in the latter piece of bowel, to just beyond the free edge of the former piece, and back to the latter piece — thus drawing, by means of the loop, the inverted edge of the Fig. 620— Lateral Intesi inal Approximation by Halsted's Interrupted Quilt Sutures: — Showing all the posterior and half the end sutures tied — and the anterior sutures in position to be tied. The two corresponding intestinal incisions are seen. (Modified from Halsted.) free end of the bowel above, down upon the inverted edge forming the incised opening in the bowel below — approximating serous surfaces entirely around the opening by the tying of the knots. ENTERO-ENTEROSTOMY BY MAUNSELL'S INVAGINATION METHOD. Description. — In intestinal joinings made by this special method of simple suturing a temporary window is cut in the intestinal tract, near one of the two sites to be united (always in the larger piece of gut) — and through this opening the two ends of intestine are temporarily invaginated by means of traction- sutures. The free edges of gut, brought concentrically through the window, are now united by interrupted sutures — after which they are drawn back into their normal position and the window is closed by suturing — thus completing the operation. Preparation — Position — Landmarks — Incision. — As for median ab- dominal section. End-to-end Approximation. — (1) Having brought the coil of intestine into the field of operation, excise the indicated portion, together with the cor- ENTERO-ENTEROSTOMY BY MAUNSELLS METHOD. 87 1 responding V-shaped part of the mesentery — and bring together the edges of the mesentery with gut sutures. (2) Two horse-hair sutures (or silk) are now introduced, which are temporarily left long and serve, primarily, as traction- sutures — after which they are cut short and serve as two of the permanent sutures. The first is placed at the antimesenteric aspect — the needle being made to penetrate all the coats of the proximal intestine, near its free border, from within outward — then all the coats of the distal segment of gut at a cor- responding point, but now from without inward. (See Fig. 621.) This suture is then knotted upon the inner side, one thread being cut short, the other left temporarily long as a traction-suture. The second suture, somewhat more complicated, is placed at the mesenteric aspect — beginning with that segment of gut of larger calibre (which becomes the intussuscipiens), the needle passes from within the lumen of intestine outward, penetrating the intestine near its free border and entering the triangular space where the two laminae of the mesentery separate to embrace the barrel of the intestine — then going through the corresponding lamina of that side of the intestine, is carried across to the opposite segment of gut (which is to become the intussusceptum), there pene- trating, from without inward, the lamina of the mesentery of the same side — and, passing onward, pierces the corresponding wall of intestine, emerging upon its inner aspect — crosses thence to the opposite side of the same segment of gut — pierces its wall from within outward, passing through the correspond- Fig.62I.— ENTERO-ENTEROSTOMY BY MAUNSELL'S INVAGINATION' METHOD— PREPARATORY TO Invagination :— A, Window in antimesenteric aspect of intussuscipiens; B, Manner of placing the antimesenteric traction-suture ; C, Manner of placing the mesenteric traction-suture. ing lamina of mesentery of that side — thence across to the opposite segment of gut — where it pierces, from without inward, the lamina of the mesentery of the same side — passing thence onward and emerging in the lumen of that segment of gut at which the suture was started. This important suture is now drawn tight, thus approximating, by the peculiar manner of its passage, the laminae of the mesentery closely to the barrel of the two segments of intestine at their most unprotected sites. Its knot having been tied on the inner side, one thread is cut short and one left temporarily long as a traction-suture. (3) A tempo- rarv window is now made in the segment of intestine of larger calibre, inde- pendently of its being proximal or distal. If both pieces are of the same size, the window is generally made in the proximal portion. The opening is made upon the antimesenteric aspect of the intestine, in the form of a longitudinal slit of about 4 cm. (1$ inches) in length, beginning about 2.5 cm. (1 inch) from the divided end of the gut and extending in the opposite direction. This slit is often made by pinching up a fold of intestine longitudinally, between the 872 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. left thumb and index, passing a knife through it and cutting upward — but as this is very uncertain and inaccurate, it is best to have an assistant so hold the intestine as to separate its walls and then make the slit by a controlled stab-like incision with a sharp, narrow bistoury, increasing its dimensions with the same instrument or with a pair of scissors — or, even better still, carefully catch the antimesenteric aspect of the intestine with two forceps, about 1.3 cm. (J inch) apart, raising a transverse ridge, which is cut with scissors in the long axis of the bowel, after which one blade of the scissors is intro- duced and the opening enlarged. (4) A pair of forceps is introduced through the window and grasps first one and then the other of the traction- sutures, drawing them out through the opening. While the intestines are steadied in the left hand, the traction-sutures are drawn upon, until the free end of the segment of gut further from the window is drawn into the lumen of the gut containing the window — the free edge of the latter being turned inward and invaginated by the opposite segment as it enters — the process of invagination continuing until the free ends of both emerge at the window as two concentric #0 TV I ■ y Fig. 622.— Entero-enterostomy by Maunsell's Invagination Method— the Invagina- tion Accomplished : — A, Window in intussuscipiens ; B, Concentric ends of two pieces of intestine of equal size; C, Antimesenteric traction-suture ; D, Mesenteric traction-suture; E, Edges of mesen- tery sutured. circles, which are drawn sufficiently far out through the window for subsequent manipulations. Both peritoneal surfaces will thus be in contact. (See Fig. 622. j (5) While the ends of the intestines are held upward and away from the opening by the traction-sutures in the hands of an assistant, a long needle threaded with horsehair (or silk) is passed straight across the concentric circles about midway between the two traction-sutures, passing through all the coats of the four thicknesses of intestines at about 5 mm. (fV inch) from the free borders. After the passage of the needle, leaving a long piece of suture at either side, the suture is caught with forceps at the center of the opening of the concentric guts and drawn upward and outward a short distance and cut. Each suture is then tied over the free borders of the two thicknesses of gut embraced by it. Thus about twenty (or more if needed) sutures are placed at equidistant sites by the passage of ten lengths of horsehair (or silk) — and are tied and cut. The two long ends of the traction-sutures are now cut short. ENTERO-ENTEROSTOMY BY MAUNSELL'S METHOD. 873 (If they have been placed at inconvenient sites, in relation with the other sutures, they may be cut out and removed.) (6) By gentle traction in the reverse direction the invagination is reduced — the intestines now forming one continuous length. (7) The window is then closed by continuous (or inter- rupted) Lembert sutures (see Fig. 623), thus completing the operation. Comment. — (1) The above method is an imitation of nature's successful manner of performing enterorrhaphy, namely, by invagination and sloughing. (2) Maunsell used horsehair — others have used silk and silkworm-gut. (3) By suturing the edges of the excised mesentery before rather than after uniting the intestines there is less danger of further separating the laminae of the mesen- tery. (4) At the end of the operation the serous surfaces should be in contact — and all of the knots at the end of the intestines should be within the gut. In thin-walled guts there is a tendency for the knots and threads not to be so well buried as in the thicker walls. (5) The sutures may be passed through the walls of the concentric guts in the ordinary manner and tied one by one, in- stead of in the above manner. (6) The sutures should not be tied too tightly. Fig. 623, — Entero-enterostomy by Maunsell's Invagination Method — the Invagi- nation Reduced:— A, External view of suture-line; B, Closing the window with interrupted Lemberts. (7) This is an instance of using a single layer of through-and-through sutures in intestinal work — but practical experience has proved the method a good one. To avoid the possibility of drainage-infection of the peritoneum by the sutures which pass through all the coats, some surgeons place additional interrupted Lembert sutures outside of the regular row. Fine gut may be thus used. Where Segments of Intestines of Unequal Size are to be United End- to-end. — (1) The traction-suture through the mesenteric borders is introduced in the above manner. A second traction-suture is introduced in precisely the same manner as the antimesenteric traction-suture above, but so placed as to pass through the edge of the upper part of the smaller gut and through the edge of the larger gut on its side, at a distance from its mesenteric attachment about equal to the diameter of the smaller gut. A third traction-suture is passed through the antimesenteric border of the larger gut alone (see Fig. 624). (2) The window is now made in the larger gut — and the invagination accom- plished as in the above case. The two free ends of the gut will not now be con- centric, as in the above instance, owing to the difference in size and to the fact 874 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. that the circumference of the smaller gut is fixed to the circumference of the larger in two places by suture. (3) The suturing of the borders of these two non-concentric circles can be best accomplished by the passage of a needle through only the two walls in contact at a time — instead, of simultaneously through these two and the opposite two, as in suturing coils of similar calibre. Each suture is at once tied. The first and second traction-sutures become per- manent — the third (through the larger gut alone) is removed. It is well to put the sutures in alternately on the two sides, proceeding from the mesenteric to- ward the antimesenteric border, until the edges of the small intestine have been sutured to those of the larger. When near the antimesenteric aspect of the smaller gut, the redundancy of the larger gut will be apparent. This redun- dancy, if at all marked, is best disposed of by cutting, with scissors, a V-shaped piece out of the antimesenteric aspect of the larger gut, of a size calculated for the individual case. This V is now carefully sutured by approximation of its margins by an overhand stitch, from its apex toward the antimesenteric aspect Fig. 624. — Entero-enterostomy by Maunsell's Invagination Method in Intestinal Coils of Unequal Size — Preparatory to Invagination: — A, Window in intussuscipiens ; B, Mesenteric traction-suture ; C, Traction-suture which is antimesenteric for the smaller and lateral for the larger gut ; D, Traction-suture which is antimesenteric for the larger gut. of the smaller gut, being especially careful to approximate the edges of the larger intestine, at the base of the V, with the edges of the antimesenteric border of the smaller gut. (See Fig. 625.) (4) The invagination is reduced by gently drawing upon the intestines — and the window is closed as in the regular ope- ration. While an elbow, marking the excess of the larger over the smaller intestine, will be present, the union will be secure. (See Fig. 626.) Lateral Approximation. — (1) Excision of the intestine and corresponding mesentery is done, the clamps having been placed especially well away from the site of operation. (2) The two ends of intestine are overlapped upon their free, antimesenteric borders, and a continuous Lembert suture (leaving the end of beginning long, after knotting) is run along what will be the posterior aspect of the junction, extending at either end slightly beyond the line of future union around the common opening — and left long and threaded. (See Fig. 627.) (3) Two corresponding incisions in the long axis of both guts are made. (4) The posterior edges of the wounds are sutured together by an overhand, con- tinuous suture of all the coats, leaving the end of beginning long, after knotting, ENTERO-ENTEROSTOMY BY MAUNSELL'S METHOD. §7: and also the end of ending long and threaded. (5) Forceps are protruded through the opening and out either free end of the intestine, catching up the Fig. 625.— Entero-enterostomy by Maunsell's Invagination Method in Intestinal Coils of Unequal Size — the Invagination Accomplished : — A, Window in intussuscipiens ; B, Non-con- centric ends of two pieces of intestine of unequal size ; C, Mesenteric traction-suture; D, Traction- suture which is antimesenteric for the small and lateral for the large gut ; E, Traction-suture which is antimesenteric for the large gut ; F, One of the sutures uniting the opposite edges of the redundant portion of the large gut. Fig. 626. — Entero-enterostomy by Maunsell's Invagination Method in Intestinal Coils of Unequal Size — the Invagination Reduced : — A, External view of portion of suture-line representing the end of the small intestine; B. External view of portion of suture-line represented by the redundancy of the large intestine; C, Closing the window with interrupted Lemberts ; D, In- terrupted sutures approximating the edges of the cut mesentery. free end in their grasp and drawing (invaginating) it into the lumen and through the opening. A circular silk ligature is then tied around either free Fig. 627.— Lateral Intestinal Approximation by Maunsell's Invagination Method:-- A, End of intestine invaginated through window and circular ligature placed around it ; B, Traction- ligatures grasped by forceps in act of invaginating opposite end of intestine; C, Continuous overhand suture of all coats ; D, Continuous Lembert suture of outer coats. Figs. 628 and 629. — Lateral Intestinal Anastomosis by Maunsell's Invagination Method : — A, Intussusceptum drawn through window ; P>, Intussuscipiens, with window in its antimesenteric aspect; C, Diagram showing manner of placing traction-sutures. '876 EXTERO-ENTEROSTOMV BY MAUNSELL'S METHOD. 877 end and they are dropped into their respective lumina. (6) The needle at- tached to one end of the "whipping over" suture then continues the process until the corresponding edges of the entire circumference are brought together and the long ends tied. (7) Then the needle upon the serous suture is taken up and the continuous Lemberts through the serous and muscular coats are con- tinued around the anterior aspect of the wound, burying in the first layer. The edges of the mesenterv are sutured as indicated. Figs. 630 and 631. -End-in-side Intestinal Implantation by Maunsell's Invagination Method :— A, Colon ; B, Ileum ; C, Free edge of lateral window in colon ; D, Free edge of end of ileum; E, Free, open end of colon; F, Traction-sutures invaginating free end of ileum and lateral opening of colon through open end of colon ; G, Diagram shoving manner of placing traction-sutures. Comment.— The circularly ligated ends of intestine may be reinforced with interrupted or continuous Lemberts. Lateral Anastomosis.— Two knuckles of intestine are apposed along their antimesenteric borders — two corresponding axial incisions are made — a window is then cut about 2.5 cm. (1 inch) above — four traction-sutures are applied to the cut margins and knotted within — a pair of forceps, passed through the window, catches the four traction-sutures and draws them back through the opening — by means of these traction-sutures the lateral aspects of the two pieces of intestine are invaginated through the window — sutures are applied to their margins, as in the end-to-end approximation — the invagination 878 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. is reduced — and the window closed by interrupted or continuous Lembert sutures. The line of anastomosis may be reinforced by Lemberts, if con- sidered necessary. (See Figs. 628 and 629.) End-in-side Implantation. — Excise the portion of intestine, with the corresponding part of mesentery — bring the free end of the smaller gut to the antimesenteric aspect of the larger gut, near its end — about 2.5 cm. (1 inch) from the free margin of the latter, upon its antimesenteric aspect, make an axial incision, corresponding in length to the diameter of the free end to be implanted — place four traction-sutures, knotting them within — draw these traction-sutures out through the free end of the gut in which the lateral opening was made, by means of forceps — suture together the margins of the free end and the lateral opening of the larger gut, as in end- to-end approximation — reduce the invagination — close the free end of the gut with the lateral opening first by continuous, overhand silk sutures, which are then buried by interrupted gut sutures of the Lembert type — thus com- pleting the operation. The edges of the mesentery are so sutured as to close all openings. The site of implantation may be reinforced by Lembert suturing, if considered necessary. (See Figs. 630 and 631.) Note. — In all the operations by the Maunsell method, the traction-sutures may be dispensed with — the invagination being accomplished by forceps introduced through the windows, as in Ullmann's modification of Maunsell's operation (page 881). (B) ENTERO-ENTEROSTOMY BY MEANS OF ABSORBALE ME- CHANICAL DEVICES LEFT WITHIN THE INTESTINE. IN GENERAL. Description. — (1) The mechanical devices, which are made of some absorbable material and are inserted into the intestinal tract to serve as distending frameworks over which the suturing may be conveniently applied, are bobbins, buttons, cylinders, plates, etc. They are left within the lumen of the intestinal tract, either to be entirely absorbed, or to be partially ab- sorbed and the residue passed by nature. While possessing, in common with non-absorbable devices, the property of aiding in the approximation of the parts, they possess the additional advantage of becoming absorbed after having accomplished their purpose — with the concomitant disadvantage of possibly sometimes becoming absorbed before having done their work completely. (2) The bobbins are in the form of two cones united at their apices, which is their smallest part. Their shape has a greater tendency to approximate the intestinal surfaces than has the button, or reel. The buttons are very much like ordinary buttons, or possibly more like reels. The size of the barrel is everywhere equal between the flanges. Various forms of plates are used, of which the best known are probably Senn's bone- plates. Some forms of cylinders are used. The terms designating these devices are sometimes used interchangeably. (3) These devices are made of various materials — the most usual being decalcified bone, or some form of vegetable (such as potato, carrot, turnip, etc.). In some, the bulk of the device is made of entirely absorbable material, and a small part of the center, where the pressure is to be borne, is made of more imperfectly absorbable or of non-absorbable material. (4) These devices are always used in con- nection with some form of suturing — never alone. (5) As to their range of applicability — their chief field of usefulness is in end-to-end approximation — EXTERO-EXTEROSTOMY BY ABSORBABLE BOBBINS. 8 79 and only to a limited extent in lateral approximation, lateral anastomosis, end-in-side implantation, gastroenterostomy, and cholecystenterostomy. Some are used only in lateral methods of entero-enterostomy (as the Senn bone-plates). ENTERO-ENTEROSTOMY BY MEANS OF ABSORBABLE BOBBINS. Description. — The Allingham partially decalcified bone bobbin will be taken as representing this type — the steps of the operations being the same whether the bobbin be of this or vegetable material. In Allingham's bobbin the bone is decalcified to within 3 mm. (fV inch) of its very center, which is left firm to resist pressure made by the suture. The two portions of the intestinal tract are approximated over the center of the bobbin by running sutures inserted, in purse-string fashion, in the free end of each piece of intestine. Preparation — Position — Landmarks — Incision. — As for median ab- dominal section. Fig. 632.— End-to-end Intestinal Approximation by an Absorbable Bobbin :— Position of bobbin is shown partly in outline; A, Purse-string suture in position ready to be tightened ; B, Purse- string suture tightened and tied ; C, Interrupted Lembert suture in position to be tied. End-to-end Approximation. — (1) Having completed the steps of a preliminary enterectomy, place a running, overhand purse-string suture of silk in the ends of each piece of intestine, passing through all their coats, the thread entering and coming out at the antimesenteric borders — leaving both free ends long. (See Fig. 632.) While less simple, a more satisfactory form of purse-string suture (owing to the manner in which it approximates the laminae of the mesentery) is the one used in connection with the operation of entero-enterostomy by means of the Murphy button (page 885) — and this suture is equallv applicable here. (2) Insert one end of the bobbin into the proximal, or distal, end of the intestine — and, having made the double turn of the friction-knot, draw the purse-string rather tightly down upon the intestine over the center of the bobbin — but do not tie the final knot. Insert the opposite end of the bobbin into the end of the opposite piece of 88o OPERATIONS UPON THE ABDOMINO-PELVIC REGION. intestine and similarly tie it. (3) When both segments of intestine are moulded well into position, so that the serous surfaces are well approximated, each suture is tightened with moderate firmness and the final knot in each tied — thus securely bringing and fastening the ends of the intestines at the center of the bobbin, and holding in contact rather extensive serous surfaces for union. (4) The serous surfaces may be scarified with a needle for about 1 cm. (f inch) around the line of suture, to cause exudation of lymph and firmer union. (5) A few interrupted Lemberts of fine gut may be applied around the line of union, further approximating the serous surfaces, if thought necessary. (6) The mesentery is treated as in other operations of entero- enterostomy. Comment. — While especially applicable to end-to-end approximation, the method may also be used for lateral approximation, lateral anastomosis and end-in-side implantation — applying the same general principles men- tioned in the preceding descriptions of those operations. As the junction in the last three operations mentioned is not so perfect as in end-to-end approximation, additional Lembert sutures should always be used to rein- force the line of union. ENTERO-ENTEROSTOMY BY MEANS OF ABSORBABLE BUTTONS. Description. — The Landerer potato button will be taken as representa- tive of this type of mechanical device. A purse-string suture is inserted into each end of the intestinal opening — these are tightened over the barrel of the button, or reel, thus relatively approximating the ends of the intestine. Fig.633.— End-to-end Intestinal Approximation by an Absorbable Button: — Position of button is shown in outline ; A, Forceps everting lips of intestine to aid suturing; B, Continuous suture of mucous coat; C, Interrupted Lembert sutures of serous and muscular coats. But as the barrel of the button or reel is of the same dimension for some distance, there is not the same tendency for the approximated ends of the intestine to be held in close contact as is the case in the bobbin, where there is the narrowest part of the barrel at the center, into which the segments ULLMANN'S MODIFICATION OF MAUNSELL'S OPERATION. 88 1 may be readily tied. An overlying line of interrupted or continuous Lembert sutures is, therefore, placed over the ends approximated by the purse-strings — and thus securely apposes serous surfaces. Preparation — Position — Landmarks — Incision. — As for median ab- dominal section. End-to-end Approximation. — (i) Having completed the steps of a preliminary enterectomy, a purse-string suture of silk or of chromic gut is inserted into the end of each piece of intestine — in the same manner, prefer- ably, as in Murphy's button-operation (page 885). (2) Each end of the intestine is drawn over the flange of the button on to the barrel — the purse- string is then moderately tightened and cut short, thus bringing the two ends of the intestine into contact. (The narrower the barrel of the button, the closer will be the contact at this stage.) (3) The circumferential margins of the intestines are united with a line of interrupted or continuous Lembert sutures of the serous and muscular coats. (4) The mesentery is repaired as in other operations of entero-enterostomy. Comment. — The comment made under " Entero-enterostomv by means of Absorbable Bobbins" is equally applicable here. Union may also be accom- plished by an inner tier of continuous suture of the mucous coat, and an outer interrupted tier of Lemberts through serous and muscular coats. (See Fig- 633-) ENTERO-ENTEROSTOMY BY MEANS OF ULLMANN'S MODIFICATION OF MAUNSELL'S OPERATION. Description. — Up to the application of the Ullmann modification, which is applied after the invagination of the ends of the intestines through the window iri one of the pieces of gut, the steps of the operation are identical with those described under the Maunsell method (page 870). The two ends of intestine having been brought through the window, a carrot (or other vegetable, or decalcified bone) bobbin is inserted within their con- centric lumina, so that its groove is grasped by their walls, which are then tied over the groove in a circular manner, with gut or silk. The invagina- tion is then reduced — and the longitudinal wound, forming the window, closed. Preparation — Position — Landmarks — Incision. — As for median ab- dominal section. End-to-end Approximation. — (1) The operation, up to the point of invagination, is precisely the same as in Maunsell's operation (page 870). (2) The invagination is now accomplished by passing two catch-forceps through the window — one catching the mesenteric and the other the anti- mesenteric aspects of the end of the proximal gut (the gut in which the window usually is) — and draws these out simultaneously through the window. The mesenteric and antimesenteric aspects of the edges of the distal gut are similarly caught by two catch-forceps introduced through the window — which are also drawn out simultaneously through the opening. These last two forceps are removed from the distal gut and made to grasp the edges of both guts at their sides. The first two are then also removed from the first gut and made to grasp the edges of both guts at the same site each was grasped by a single forceps. Thus the concentric ends of the two intestines are readilv held open by the four pairs of forceps equidistantly placed. These forceps are given to an assistant, who holds them with one hand, while holding the bobbin with the other. (See Fig. 634.) (3) The bobbin is now introduced into the concentric openings of the intestines — the walls of the two guts are 56 882 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. then tied down into the groove of the bobbin with thick catgut or silk (which will not likely cut through). (4) The forceps are relaxed — the invaginated intestines are reduced — the window is closed by interrupted or continuous Fig. 634.— Entero-enterostomy by Ullmann's Modification of Maunsell's Invagi- nation Method : — A, Window in intussuscipiens ; B. Concentric ends of intestines drawn through window; C, C. Traction-forceps drawing ends of intestines through window ; D. Absorbable bobbin within concentric ends of intestines; E, Ligature binding ends of both pieces of intestine to groove of bobbin. Wtfi& v iiffi* Fig.635. — Entero-enterostomy by Ullmann's Modification of Maunsell's Invagi- nation Method : — Showing the reduction of the invagination and closure of the window — bobbin and ends of intestine being shown in outline. Lembert sutures — the mesentery is repaired — and the operation concluded. (See Fig. 635.) Comment. — Although more applicable to end-to-end approximation, the ENTERO-ENTEROSTUMY BY COFFEY'S METHOD. 883 Ullmann modification of the Maunsell method may be applied to lateral approximation, lateral anastomosis, and end-in-side implantation. ENTERO-ENTEROSTOMY BY COFFEY'S METHOD. Description. — The free ends of intestine, after having been first united at their mesenteric aspects by two or three Connell sutures, are drawn over a vegetable tube (made of potato, carrot or turnip, preferably the first) and made to meet and overlap at its center by means of two long needles passed through tube and intestines transversely, at right angles to each other — after which any form of suture desired is applied — the pins then withdrawn— and the potato-tube pushed on down and crushed. Preparation — Position — Landmarks — Incision. — As for median ab- dominal section. Fig. 636. — End-to-end Entero-enterostomy by Coffey's Method: — I, Ends of intestine brought together and their mesenteric aspect united by three Connell sutures — preparatory to insert- ing hollow potato-tube shown above. (Modified from Coffey.) Operation. — (1) Having completed, one may suppose, the steps of an excision of a portion of the intestines, the free ends are brought into contact and, while thus held by an assistant, three Connell sutures placed at the mesenteric aspect, the central one embracing both lamina? of the mesentery of both ends of the intestine — each suture passing from within the lumen of one end outward through its own wall, and from without inward through the corresponding site of the opposite end — then from within outward from the lumen of the opposite end, and from without inward through the cor- responding site of the original end, back into the lumen of the original end — where the free ends of the suture are tied within the first piece of intestine. (Fig. 636.) (2) One end of the united pieces of intestine is then drawn over the potato-tube up to the center of the tube — and is held there until the opposite end of the intestine is similarly drawn over the opposite end 884 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. of the tube to meet it, and also held in position. (3) Two long needles (or hat-pins, knitting-needles, probes, or toothpicks) are now passed transversely through the potato-tube and through the ends of the intestine, at right angles to each other — one entering near the mesenteric, and one at the mid-lateral aspect. As these needles enter and emerge, they are made to pierce the overlapped edges of intestine — and thus hold them in four places — over- lapped where the needles penetrate, and overlapped or in comparatively close contact throughout the rest of the quadrants (Fig. 637). (4) While the ends of intestine are thus held, any form of suture desired may be placed — interrupted Lemberts — continuous Lembert — the Halsted quilt suture — or a double line of sutures. (5) Having completed the suturing, the pins are Fig. 637. — End-to-end Entero-enterostomy by Coffey's Method: — II, Two ends of intes- tine drawn over tube and held in relation with each other by long needles thrust through the potato- tube at right angles to each other and piercing the overlapped edges of intestine. While thus held interrupted Lembert (or other) sutures are applied — after which, needles are withdrawn — and potato- tube may be crushed. (Modified from Coffey .) withdrawn. In the case of interrupted sutures, those stitches which were placed while the needles were in situ can now be more satisfactorily drawn together after the removal of the needles. The potato-tube is carefully pressed away from the site of operation, distallv to it — and is then crushed into comparatively small pieces. (6) The abdomen is closed in the usual manner. (C) ENTERO-ENTEROSTOMY BY MEANS OF NONABSORB- ABLE MECHANICAL DEVICES LEFT WITHIN THE INTESTINAL CANAL. IX GENERAL. Description.— These devices, usually made of metal, serve, as in the case of absorbable devices, as frameworks over which the intestinal joinings are EXTERO-ENTEROSTOMY BY MEANS OF MURPHY BUTTON. 885 made — but are left within the intestinal tract to be passed out at the anus by the efforts of nature. The Murphy button may be taken as the most generally used representative of this class. ENTERO-ENTEROSTOMY BY MEANS OF THE MURPHY BUTTON. Description. — The junction between the intestinal coils is accomplished by inserting one half of an ingenious button into the free end of each portion of intestine — these half-buttons are held in place by specially applied su- tures — and the two halves of the button are then approximated. The opposite surfaces of the two cups of the button, aided by a spring in one of the cups, keep up a constant pressure upon the opposed surfaces of intes- tine, thus holding their approximated serous surfaces in contact. Union Fig. 638.— Cross-section of Intestine, Showing Manner of Placing the Purse-string Suture : — A, Serosa ; B, Muscularis ; C, Submucosa ; D, Mucosa ; E, E, Laminae of mesentery ; F, Mesenteric vessel and connective tissue; G, Beginning of suture ; H, Crossing of suture, approxi- mating laminae to each other and to barrel of intestine; I, End of suture, ready to be knotted with opposite end. takes place between the surfaces thus held together, especially along their circumferential aspects — while the buttons are freed by pressure-necrosis and are generally passed by bowel. Preparation — Position — Landmarks — Incision. — As for median ab- dominal section. End-to-end Approximation. — (1) Having opened the abdominal cavity, complete the partial enterectomy in the usual manner. (2) Preparatory to the insertion of half of the button into each free end of the gut, a silk suture is applied in a special manner. (See Fig. 638.) A long, straight needle is 886 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. threaded upon a piece of silk about 30 cm. (12 inches) long — this suture begins just to the right of the center of the antimesenteric border, entering about 3 mm. (£ inch) below the free edge, and passing from without directly inward — thence, following the right-hand margin, in an overhand stitch, over (not through) the border of the intestine to the outer side — thence through the wall from without inward — and so on, until the lamina of the mesentery belonging to that side is reached. As the suture passes from within the lumen, over the wall outward for the last time on that side, it also passes obliquely over the lamina of the mesentery of the opposite side. The suture is then carried through both laminae of the mesentery as a reversed stitch — emerging at the outer aspect of the opposite lamina. It is now obliquely carried over the lamina of the original side (and across the first limb of the suture that was carried over the opposite lamina) into the lumen of the intes- tine, toward its opposite wall — and passes through this wall of the intestine from within outward. The order is now reversed, and (to get out of the Fig. 639.— End-to-end Intestinal Approximation by Murphy's Button: — Showing manner of introducing button into lumen of intestine, — male button on left, with purse-string ready to be tightened ;— female button on right, with suture tightened. lumen on the left side) the thread is always carried through the free border of the intestine from within outward — thence passes over (not through) the wall from without inward into the lumen — and so on, until it enters the lumen for the last time, at the antimesenteric border — here, at a distance of about 5 mm. (yg- inch) from its point of entrance, and on the same level, the needle passes through the intestinal wall from within outward. Thus a "puckering" or "draw-string" is formed, so applied that when drawn about the button, it will approximate the leaves of the mesentery closely about the ill-protected triangle at its base — and the two threads emerging side by side upon the outer aspect are ready to be tied about the button. Although these sutures pass through all the coats of the intestine, they are within the spring, or pressure-cup, of the button. Similar sutures are inserted into the free ends of the opposite piece of intestine. (See Fig. 639.) (3) Each cup, or button, is now grasped by its stem (not, as so often shown in pictures, by the cup itself) by the tip of a pair of special or pointed forceps (forceps ENTERO- ENTEROSTOMY BY MEANS OF MURPHY BUTTON. 887 with rounded or squarish points would tend to bend the perfectly circular opening of the stems). Both are now ready for introduction. (4) The male button (one with smaller stem) is always introduced into the end of the proximal gut (because when its stem has slipped into the stem of the female button, a slight elbow or projection is formed where its free margin ends — which is harmless while in the direction of the intestinal current, but might cause obstruction by particles of solid food lodging against it, if in the opposite direction). This male half of the button is introduced into the proximal gut just far enough for the free end of the gut to come well around the stem. The suture is then drawn moderately tight and tied with a double knot (the first being a friction-knot) around the stem — evenly distributing the puck- ered gut with a probe as the thread is tightened. An assistant takes the forceps and so holds them that the stem of the button does not slip within the intestine. (5) The female button (one with larger stem) is simi- larly introduced into the distal end of the gut. The suture is similarly placed and tightened about it — and the forceps given to an assistant to hold in the Fig. 640.— End-to-end Intestinal Approximation by Murphy's Button: — The half-buttons approximated and pressed home. Two loose, interrupted Lembert sutures are shown in the position which a tier of these sutures would occupy, if used. same manner as with the male button. (6) The assistant holding the buttons, so crosses the handles of the forceps as to present the buttons to the surgeon in their right relation for immediate approximation. (See Fig. 639.) The surgeon now grasps a button in the thumb and first two fingers of each hand, with the hollows of the buttons looking toward each other. The as- sistant then simultaneously releases the hold of the two forceps upon the stems of each half-button. At the moment of release the surgeon guards the buttons lest they slip out of reach into the intestines (by pressing them against the binding sutures). The surgeon now approximates the two half- buttons, one held in the fingers of each hand — calculating, in their slow and deliberate approximation, that the intervening intestinal walls will be so dis- posed as to make an even layer over the cups of the buttons — adjusting the deficiency or excess of the puckered intestine with a probe, as indicated — and finally pressing the two halves home as far as his judgment deems neces- sary to secure good apposition without too great compression. (See Fig. 640.) 888 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. (7) The edges of the mesentery are sutured and the intestine dropped back into the abdomen. Comment. — (i) Segments of intestine of unequal size may be thus united by end-to-end approximation with the Murphy button — care being exercised in tying the button into the end of the larger gut, and especially in the act of approximating the two buttons, to see that the puckered excess of the intestinal tissue, particularly in the case of the larger gut, is evenly distributed around the stem of the buttons — and that when the halves of the buttons are finally pressed home the serous surfaces everywhere come together. (2) A line of interrupted or continuous Lemberts is used by some surgeons to reinforce the margins where the buttons meet, after their appo- sition. While not generally necessary, such a line of reinforcing sutures may be used where considered indicated. (See Fig. 639.) (3) See that Fig. 641.— Lateral Intestinal Approximation by the Murphy Button :— The manner of placing the purse-string suture is shown upon the lower intestine, — and the male button introduced, ■with suture tightened, is seen within the upper intestine. the purse-string sutures are, after knotting, cut close, and that their ends are not held by the cups of the buttons — thus retarding the escape of the button, and possibly serving as infectors of the peritoneal cavity. (4) All buttons used should be of a size that will not press upon the intestinal walls, else sloughing may occur. Lateral Approximation. — (1) Having excised the portion of intestine, the free ends of the two pieces of gut are first closed by overhand, continuous suture of all the coats — followed by a second tier of interrupted or continuous Lemberts burying in the first row. (2) Purse-string sutures are now placed. (See Fig. 641.) These consist of silk and are carried by an extra long, straight needle (such as Keith's abdominal needle). The site for the insertion of the half-button into each segment of gut having been chosen, which will ENTERO ENTEROSTOMY BY MEANS OE MURPHY BUTTON. 889 be upon the antimesenteric aspect of the guts, beginning about 2.5 or 5 cm. (1 to 2 inches) from their ends, it is necessary to calculate the length of the incision to be made, as its length will regulate the length and position of the purse-string suture. If the oblong button be used, the length of the incision will be a little less than the transverse diameter of the button, — and if the round button, a little less than the diameter — in order that when the button is insinuated through an opening requiring slight distention for its entrance, it will close about it sufficiently to slightly grasp it. The sutures should be put in so that their looped end is toward the free end of the gut. The suturing passes through all the coats. Conceiving an imaginary straight line, running longitudinally, upon the center of the antimesenteric aspect of the bowel to mark the site for the future incision for the reception of the button, the needle is made to enter the wall of the gut about 6 mm. (j inch) above (or below, as the case may be) this imaginary line, and about 3 mm. (^ inch) to one side — passing through all the coats into the lumen — again passing outward (always traveling in a straight line parallel with and about 3 mm. [f inch] from the imaginary line) and emerging about 6 mm. (j inch) from the point of entrance — and so on, until it emerges finally about 6 mm. (^ inch) beyond the opposite end of the imaginary line — here the loop is formed, the needle crossing over and entering the intestinal wall at a point corresponding with its last emergence, but on the opposite side of the imaginary line — and travels down this side in the reverse direction, but in the same manner as on the opposite side — finally emerging at a point corresponding with the entrance on the original side. Both ends of the suture are left long and the loop loose. (3) An assistant now so holds the bowel (which has been clamped at some distance from the free ends) as to separate its walls — while the surgeon, by a quick, controlled stab of a narrow, sharp bistoury, incises the gut midway between the two parallel lines of the purse- string suture, and makes an opening a little less in length than the diameter of the button to go through it — and especially considerably less in length than the length of the surrounding purse-string. Care is taken that the mucous membrane is not simply pushed ahead of the knife, instead of being cut, and that the lumen is well opened up. (4) The button, grasped by forceps, as in the ordinary end-to-end operation, is now insinuated into the opening, placing the male button in the proximal gut. The purse-string is drawn tightly enough to approximate the walls of the gut to the stem of the button and tied — evenly distributing the puckered intestine around the stem. The forceps holding the button is then given to an assistant, who holds it as in the end-to-end operation. (5) The opposite end of the intestine is similarly treated and the female button inserted. (6) The surgeon, grasping a button in the fingers of each hand, with their stems facing (as they have been directed by the crossing of the forceps), signals to the assistant to release the buttons by relaxing the forceps — and then pushes home the two halves — using the same precautions as in the end-to-end approximation, for the even distribution of the intestinal walls. (See Fig. 642.) (7) The management of the mesentery will here differ from its management in the end-to-end opera- tion, as the continuity of the intestinal canal will not be continued in one straight line. It is better (unless otherwise indicated) not to excise a V-shaped portion of mesentery, but simply to fold over and suture in contact with each other, and with neighboring mesentery, the layers of the redundant fold of mesenterv. If a V-shaped portion be excised, the two free borders of the mesenterv left should be so sutured down to adjacent mesentery as to leave no openings for hernia. 890 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Comment. — (1) See the general comments under the end-to-end ap- proximation. (2) Care should be used that in approximating the two ends of the intestines the direction of the intestinal flow should be maintained. (3) The button used may be of the oblong type, which is better for this purpose— or of the ordinary round type. (4) The operation of lateral approximation after closure of the ends of the resected gut is but rarely indi- cated — the usual method of junction following excision being by end-to-end approximation. (5) Instead of using the purse-string suture to hold the button-halves in place, Carle approximates the borders of the intestinal opening by one or two interrupted Lembert sutures placed at either end of the incision, thus lessening its length and grasping the button. But the regular method is probably better. Lateral Anastomosis. — In this operation the two buttons are inserted Fig. 642. — Lateral Intestinal Approximation by the Murphy Button: — The two half- buttons are shown approximated. Interrupted or continuous Lembert sutures may reinforce the con- tiguous surfaces, if considered necessary. into the antimesenteric aspects of the two indicated coils of intestine — the method of insertion being identical with that used in Lateral Approximation by the button. No excision of intestine takes place. The oblong button is to be preferred. Reinforcing Lemberts may be used. The Carle method of tving in the buttons, just mentioned, may be used. Lateral Anastomosis with Weir's Modification of Murphy's Button, Introduced by Gallet's Method. — The male half of the original button is so modified, by being sharpened and beveled, that it can be made to penetrate the walls of the intestine. Both buttons are introduced, by means of special forceps, through a common opening in a knuckle of intestine — each being carried down a separate limb of the gut — and are then approximated — fol- lowed by the closure of the incision in the knuckle. Following are the steps ENTERO-ENTEROSTOMY 15V MEANS OF MURPHY BUTTON. S91 of the operation; (1) The sites of the anastomosis must be in such positions upon the antimesenteric aspects of the intestine that, when the length of the intestine is doubled upon itself, the site to be occupied by each button will not be beyond the reach of the special forceps to be introduced through an opening at the knuckle formed by bending the intestine upon itself. (2) An incision in the longitudinal axis of the gut is now made at this knuckle. A button held in the grasp of the special forceps is then introduced through the opening down one limb of the gut — the male button in the proximal limb. The female button, similarly held, is then introduced down the oppo- site limb. (3) By pressure upon the forceps holding the male button, its stem is made to pierce the walls of its own side and the opposite gut — and is then directed into the stem of the female button. (4) The buttons are then pressed home — the adjacent surfaces of intestine being held in contact without any form of suturing. (5) The treatment of the opening in the knuckle of gut is as indicated. In the cases where the operation is simply a lateral anastomosis, the incision in the knuckle would be closed by inter- rupted or continuous Lembert sutures of gut or silk. In the majority of cases where this operation is done, however, it is performed in connection with a gastrojejunostomy, for the purpose of aiding in the prevention of bile and intestinal regurgitation from the duodenum into the stomach — so that as soon as the intestinal anastomosis has been accomplished, the opening in the knuckle of intestine is sutured to a corresponding opening in the anterior wall of the stomach, thus completing the gastrojejunostomy. (See Fig. 714.) Note. — The ordinary Murphy button may be used in practically the same manner. After opening the knuckle of gut, one half of the button may be dropped into each limb of the intestine — these are caught and held by the fingers of an assistant at corresponding positions within the two pieces of gut, with the free portion of their stems held against the antimesenteric aspect of the gut. While the intestinal wall is thus drawn tightly over the hollow stems, a limited crucial incision is made in the center of the stems, just sufficiently large for the stems to be pressed through, with the walls of the intestine clinging closely around them — immediately following which the two halves are pressed together, bringing the antimesenteric aspects of the two portions of gut into accurate apposition — no reinforcing suture being necessary. The opening in the knuckle of gut is closed as usual. (See Figs. 715 and 716.) Multiple Lateral Intestinal Anastomosis (Jaboulay-Braun's Opera- tion). — In addition to the single lateral intestinal anastomosis formed after gastroenterostomy, as above described (Braun's operation), sometimes a second, or even a third, lateral intestinal anastomosis may be made — for the purpose of further avoiding the likelihood of intestinal regurgitation by furnishing as direct and easy a descent from the stomach to the anus as possible. Supposing, therefore, that a gastrojejunostomy has been per- formed, a lateral jejuno-jejunostomy may be done by Gallet's method of using Weir's modification of the Murphy button, at the time the intestine was opened to unite it to the stomach — and then another jejuno-jejunostomy, or a jejuno-ileostomy, could be performed lower down by the ordinarv lateral anastomosis method, thus short-circuiting by two routes the contents of the intestines. Note. — Multiple intestinal anastomosis can, of course, be performed by simple suturing, as well as by other methods. End-in-side Implantation. — Supposing the caecum to have been excised and the mesentery ligated, the male Murphy button is introduced into the 892 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. free end of the ileum and tied in place, as in the ordinary end-to-end ap- proximation. The edges of the free end of the caecum are then united by overhand continuous silk sutures through all the coats — and these are buried in by the interrupted or continuous Lemberts of gut or silk. An opening is then made 2.5 to 5 cm. (1 to 2 inches) from the sutured end of the caecum, upon its antimesenteric aspect, and the female button tied into place, just as in lateral intestinal anastomosis. The two buttons are now brought together in the usual fashion. The line of union should be here reinforced by a tier of interrupted Lembert sutures. The borders of the mesentery should be sutured as indicated. LATERAL INTESTINAL ANASTOMOSIS BY THE JABOULAY BUTTON. Description. — The Jaboulay button, made in three sizes, is made up of two halves — each half having an outer and an inner cylinder — the outer fenes- trated cylinder having a break or slit in its continuity extending into and almost half around the inner cylinder. Its form of structure is intended to enable the button to be inserted upon "the screw and key-ring" principle through an especially small intestinal opening, and is used without the reinforcement of sutures (Figs. 643 and 644). Figs. 643 and 644. — The Jaboulay Button; Male and Female Halves. (Redrawn from Beer.) Preparation— Position— Landmarks— Incision.— As in median abdom- inal section. Operation. — The coils of intestine are clamped and brought into the field in the usual way, with their antimesenteric aspects presenting. In using a button of 2.2 cm. (approximately f inch) diameter, a longitudinal incision in the antimesenteric aspect of the bowel is made of 1 cm. (§ inch) length. The inner cylinder of the button is grasped with a pair of forceps, as in the case of the Murphy button — but, in the present instance, the button is insinuated into the lumen of the bowel by a semi-lateral cork-screw movement — the beak of the outer cylinder first entering — the screw-like movement being continued until the outer cylinder has entirely entered the cavity of the intestine — the inner cylinder being left protruding from the intestinal wound and snugly grasped by it. The opposite half of the button is introduced into the corre- sponding lateral aspect of the opposite piece of intestine. The two halves are then pressed tightly home, with considerable strength (as the pressure necrosis which liberates the buttons is here dependent upon the amount of pressure used in approximating the buttons, and not upon a special spring or third cylinder, which continues to act, as in the Murphy button). The walls of the intestine are thus approximated and the lumen of each piece of intestine is ENTERO-ENTEROSTOMY BY HARRINGTON'S RINGS. 893 connected through the inner cylinder. No reinforcement by suturing is used unless the intestinal wall be torn in inserting the buttons (Fig. 645). Comment. — Theoretically the above technic seems very satisfactory — but the following practical difficulties (especially demonstrated by Beer's work) have arisen in the use of this form of button; — In quite a large percentage of cases the button can not be introduced through an incision bearing the pro- portion of the diameter of the button as indicated above (and as claimed for it by its author), and, in consequence, the intestinal wall is quite frequently split further than intended and has to be sutured; — The button is quite often Fig. 645. — Lateral Intestinal Anastomosis by means of the Jaboulay Button: — Male and female buttons. Figs. 646-648. — Harring- ton's Segmented Ring : — Seen in three positions with handle in position in two. held in situ and is not passed. The especial advantages of the button are — the small incision, the rapidity of its introduction, and the absence of reinforc- ing suturing — where all goes well. ENTERO-ENTEROSTOMY BY HARRINGTON'S SEGMENTED RINGS. Description. — "The ring, in the language of its author, is made of hard aluminum in four sections. These sections are jointed firmly together by a small bar of steel, which has a shoulder and a screw thread, and which serves as a handle. The outer surfaces of the ring are grooved to hold the ends of 894 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. the intestines, which are tied in place by catgut purse-string sutures. The segments tit together by means of sliding tongue-and-groove joints so rounded that they will nut cut or catch in the tissues." The ring is a mechanical aid to intestinal anastomosis, end-to-end and lateral. Subsequently to being placed in situ it collapses into its component segments, which are so small that they are passed without danger or discomfort. The rings are made in three sizes. (Figs. 646-648.) Preparation — Position — Landmarks — Incision. — As in median abdom- inal section. Operation. — The description of the technic given by Harrington and Gould will be here largely followed. The end-to-end anastomosis is performed as follows (Fig. 649) :— Clamps are applied in such a way as to exclude the Fig. 649. — Entero-enterostomy by means of Harrington's Segmented Ring: — A, Mesenteric stitch; B, Purse-string suture (the one on the opposite end being tied); C, The ring and handle in position. (Redrawn from Gould.) general intestinal tract. A sero-muscular purse-string suture of No. 2 plain catgut is placed around the intestines on either side of the area to be excised, and the first part of a surgeon's knot tied, without tightening the suture. The intestine is excised 3 mm. (J inch) from the purse-strings. A mesenteric mattress stitch, after the manner of the Maunsell mesenteric stitch, is first applied. The segmented ring is then introduced into one end of the intestine, guided by the handle, and the purse-string of that end is tied. The mesenteric mattress suture is then tied, after which the other end of the segmented ring is placed within the lumen of the opposite end of intestine and the second purse- string suture tied. The intestinal margins are evenly adjusted to each other at the center of the ring. A Cushing right-angle continuous sero-muscular suture, beginning to one side of the steel handle, is carried around the intestine, with frequent knotting, to the opposite side of the handle. The handle of the instrument is then unscrewed and withdrawn — after which the Cushing suture ENTERO-ENTEROSTOMY WITH LEE'S INTESTINAL HOLDER. 895 is continued over the opening left by the withdrawal of the handle. The ring is held together by the purse-strings. Lateral intestinal and gastro-intestinal anastomoses are accomplished in the same general way. The purse-string sutures here consist of two parallel arms crossing at one end, only far enough from each other to leave room for the incision. Comment. — It is better to leave the ring in place after completing the operation — although if it seem to exert undue pressure, it may be collapsed by gently compressing it through the walls of the intestine. At the end of twenty- four hours the swelling is great enough to hold the intestinal ends together without the purse-string sutures. But at the end of from four to six days the swelling subsides, leaving the purse-strings and the lumen of the intestine con- siderably larger than the circumference of the ring — which then collapses and passes on down. (D) ENTERO-ENTEROSTOMY BY MECHANICAL MEANS TEMPORARILY USED FOR APPROXIMATING THE INTESTINAL EDGES DURING SUTURING. IN GENERAL. Description. — Various more or less ingenious forms of devices have been introduced for the purpose of holding in contact the opposite margins of the intestines during the act of suturing — to be withdrawn just prior to the completion of the suturing. Many of these, at the same time, distend the otherwise flaccid gut, and render the application of sutures easier — such as the Halsted inflatable rubber cylinder, Laplace's intestinal forceps, Lee's intestinal holder, and the like. The last of these will be described as repre- senting this class of work. ENTERO-ENTEROSTOMY BY MEANS OF LEE'S INTESTINAL HOLDER. Description. — The instrument, though simple in principle and con- struction, is difficult to describe clearly — but its manipulation is easy. The holder is introduced into the approximated ends of the intestine closed — is then opened — and serves as a framework upon which suturing is done — and is then finally closed and withdrawn. A single instrument fits any part of the intestinal tract — and any suture may be used in conjunction with it. Lee uses a modification of the Connell stitch. The method is only applicable to end-to-end approximation. Preparation— Position — Landmarks — Incision. — As for median ab- dominal section. End-to-end Approximation. — (1) Open the abdomen — clamp off the site — and excise a portion of the intestine, with or without a part of its mesen- tery. (See Fig. 650.) (2) The mesenteric suture is passed — exactly as the mesenteric traction suture is passed in Maunsell's operation (page 870). Both ends of the silk are left long and are knotted within the lumen of the gut — thus approximating the mesenteric aspects of both guts and both lamina? of the mesentery to the barrel of the gut (Fig. 651). Each end of the threads is then needled — and the needles are made to pass out of the gut near the knot and the threads are drawn after. (3) The intestinal holder is now 8 9 6 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. introduced and opened — distending each gut flatwise — the distal arms being against the mesenteric border and the proximal arms against the antimesen- teric border — the free borders of intestine lying in parallel contact — there being no marked tension anywhere. (4) The half of the intestine nearer I Fig. 650.— End-to-end Entero-enterostomy by Lee's Intestinal Holder: — A, A. Clamps upon a coil of intestine from which a portion has been excised ; B, Intestinal holder beinj, inserted into the ends of intestine— its blades extended ; C, C, The two ends of the mesenteric suture. (Modi- fied from Lee.) the surgeon is now sutured with right-angled continuous suture (Fig. 652), passing through all the coats, tightening the thread after each stitch. When the site of the emergence of the stem of the instrument is reached, the final stitch is made on the side opposite to the one on which the preceding stitch was made— and this final stitch is only a half-stitch, passing from without ENTERO-ENTEROSTOMY WITH LEE'S INTESTINAL HOLDER. 897 and ending on the interior of the gut (Fig. 652). (5) The instrument is now so turned as to present the opposite side (Fig. 653) — which is sutured in a similar manner — the final half-stitch ending on the same end of gut as the last half-stitch of the first side, and on the interior of the gut. (6) Fig. 65 1.— Entero-enterostomy by Lee's Intestinal Holder : — A, A, Mesenteric suture tied and ends passed out of intestine ; B, B, Showing, first, manner of tying mesenteric suture — and, sec- ondly, manner of passing ends of suture out of intestine. (Modified from Lee.) Fig.652. — Entero-enterostomy by Lee's Intestinal Holder : — Manner of placing and end- ing the right-angled continuous sutures upon the aspect of the intestine further from surgeon. (Modified from Lee.) The instrument is now folded and withdrawn (Fig. 654) — leaving two free ends of silk ready to be tied. (7) To enable the ends to be knotted on the interior, a threaded needle is insinuated between the stitches of the opposite 57 8o8 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. side, the eye first — and is pushed upward until the threaded eye protrudes through the opening formerly occupied by the handle of the instrument. Fig. 653.— Entero-enterostomy by Lee's Intestinal Holder :— Manner of placing and ending the right-angled continuous sutures upon the aspect of the intestine nearer the surgeon. (Modified from Lee. 1 Fig.654.— Entero-enterostomy by Lee's Intestinal Holder :— A, Holder closed and with- drawn from intestine; B, Ends of the two sutures emerging from the same side and within the in- testine ; C, Loop introduced upon head of needle through suture-line at D, under which loop the ends of the main suture are caught and withdrawn at D. (Modified from Lee.) ENTERO-ENTEROSTOMY WITH LEES INTESTINAL HOLDER. 899 The thread of the needle is then loosened into a loop, under which the free ends of the two sutures are passed — and by means of which these free ends are drawn out when the needle is withdrawn through the line of suturing, at the point where the head of the needle was pushed through. (8) These sutures are then knotted, during which process the bowel is flattened and its mucous membrane near the final half-knots is approximated to the site where the sutures are being tied — the sutures are then cut short — and the knots slip into place and the intestine regains its form by a little manipulation (Fig- 655). Comment. — Any other less intricate form of suturing may be used. Rein- forcing Lemberts may be used if thought necessary. Fig. 655.— Entero-enterostomy by Lee's Intestinal Holder: — Tying the final knot upon the outside — which, upon cutting the threads, recedes within the intestine. (Modified from Lee.) EXCISION OF THE ILEO-CECUM. Description. — Consists in the removal of the caecum, together with more or less of the adjoining portions of the ileum and ascending colon — followed by some form of entero-enterostomy between the small and large intestines. The operation is generally resorted to for malignant or tubercular disease of this region, or for intussusception of this portion. Preparation — Position — Landmarks. — As for Appendicectomy (page 900). Incision. — About 13 cm. (5 inches) long, beginning in the. anterior axillary line (a vertical line from the anterior border of the axilla), midway between the lower margin of the costal cartilages and the iliac crest — passing 900 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. downward to within about 4 cm. (ij inches) of the anterior superior iliac spine — and thence obliquely downward and forward, parallel with the outer half of Poupart's ligament, ending to the outer side of the position of the external iliac artery. Operation. — (1) Divide the skin, fascia, external oblique, internal ob- lique, transversalis, transversalis fascia, subperitoneal connective tissue, and peritoneum. The size and condition of the parts generally necessitates an operation of a magnitude too great for the intramuscular method of opening the abdomen— but in so far as this method can be adopted, it should be carried out. Both the muscular and aponeurotic portions of the external oblique can ordinarily be separated in the cleavage line. The abdominal vessels and nerves should be preserved as far as possible. Having exposed the abdominal cavity, retract the lips of the wound well and deeply. (2) If adherent omentum be encountered, ligate off with gut and divide. (3) Separate the caecum from the iliopsoas fascia upon which it lies. This is accomplished by displacing the caecum and colon inward and cutting through the peritoneum along the outer aspect of the caecum and colon where it binds those structures to the posterior abdominal wall, ligating where necessary with gut. These structures are then displaced outward and the peritoneum divided along the inner side — but on this side the colic vessels are encountered as they diverge to supply the bowel — so that this region is ligated off in sections and divided. This inner line will cross the ileum where it joins the colon. The mesentery of this small intestine is ligated in sections, as far as may be necessary, and divided. (4) Having thus freed the caecum and several inches of both colon and ileum, the contents of the bowel are pushed away, the intestines clamped, the neighboring regions protected with gauze packing, and the intestines divided at a right angle to their axis. (5) Having excised the ileo-caecal region, an entero-enterostomy is accomplished in one of the following ways (previously described in detail) : — (a) End-to-end approxima- tion by simple suturing, by Murphy's button, or by Maunsell's invagination method — the first or second probably being preferable; (b) Invaginate the ends of both guts by overhand followed by Lembert sutures, and then make a lateral anastomosis between the ileum and colon by simple suture, or by a Murphy button (or by one of the other methods already described) ; (c) Divide the ileum obliquely, to give a larger opening, and unite it to the trans- verselv divided colon by simple suturing — (often the ileum has been dis- tended so long, by obstruction below, that it has become the same size as the colon) ; (d) Close the end of the colon by invagination, by a double row of sutures, and then implant the end of the ileum upon the lateral aspect of the colon (resembling nature's junction of the small and large intestines). (6) Drop the parts back into the abdomen, and close the abdomen, with or without drainage, as indicated, as in abdominal section. Comment. — Remove all diseased glandular tissue. APPENDICECTOMY BY McBURNEY'S INTRAMUSCULAR OPERATION. Description. — Appendicectomy consists in the removal of the appendix vermiformis. The feature of McBurney's operation is based upon the exposure of the appendix through a successive separation, in the cleavage line, of the overlying abdominal muscles and aponeuroses. The fibers of the muscles and aponeuroses are not cut but are separated. The appendix is exposed and is treated by one of several methods. This form of the opera- APPEXDICECTOMY. 901 tion is chiefly applicable to the " interval period " of appendicitis — but is sometimes used in acute cases and in pus cases. Preparation. — Site of incision to be shaved. Position. — As in median abdominal section. Landmarks. — McBurney's point, which is located on an imaginary line extending from the anterior superior iliac spine to the umbilicus, at a distance of 3.8 cm. (1^ inches) internal to the anterior superior iliac spine. Fig. 656. — McBurney's Intramuscular Appendicectomy : — I. — Separation of the fibers of the external oblique in their cleavage line by blunt dissection with the handle of a knife. Incision. — Commences about 2.5 cm. (1 inch) above the imaginary line just mentioned, and passes obliquely downward and inward in the direction of the fibers of the external oblique muscle and aponeurosis — crossing the above line at McBurney's point — and ending about the same distance below as above it. The length of the incision may be greater or less than the above, according to the space required. A free skin incision greatly aids the muscular retraction (Fig. 576, E). Operation. — (i) Having incised the skin and fascia in the above lin (which will correspond with the cleavage line of the skin), and having co 902 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. trolled hemorrhage and retracted the lips of the wound, the muscular and tendinous fibers of the external oblique will be exposed. (2) Incise the exter- nal oblique with a sharp scalpel, directly in a line with its muscular fibers above, and their tendinous continuation into the aponeurosis below — con- tinuing the separation with scalpel and scissors, incising between the fibers without severing them (Fig. 656) . The two lips of the incised external oblique are drawn respectively upward and inward, and downward and out- Fig. 657. — McBurney's Intramuscular Appendicectomy: — II. — The separated fibers of the external oblique are retracted upward and inward and downward and outward. The fibers of the internal oblique are being separated in their cleavage line. The libers of the trans- versalis are seen in the floor of the wound. Branches of the hypogastric and ilioinguinal nerves and lumbar arteries lie between the internal oblique and transversalis. ward — thus exposing the intermuscular fascia between the external and internal oblique. (3) The sheath and fibers of the internal oblique (the muscle being here quite thick) are now similarly separated by scalpel, scissors, or blunt dissection, in the line of their cleavage (which is nearly at a right angle to the cleavage line of the fibers of the external oblique), the center of the separation of the fibers being about opposite the anterior superior iliac spine. The lips of the internal oblique are now retracted respectively upward and outward, APPENDICECTOMY. 903 and downward and inward — thus exposing the intermuscular fascia between the internal oblique and transversalis. Guard with special care all nerves lying in this intermuscular plane (Fig. 657). (4) The fibers of the transversalis, which, for practical purposes, run very nearly in the same direction as those of the internal oblique, are now similarly separated in their cleavage line. The lips of the transversalis may be separately retracted upward and downward, but are generally included in the grasp of the same retractors which retract Fig. 658. — McBcrxey's Intramuscular Appendicectomy : — III. — The fibers of the external oblique are retracted as above. The fibers of the internal oblique are retracted upward and outward and downward and inward — beneath which are seen the separated fibers of the transversalis — and in the interval lie the appendix and caecum. the internal oblique. The transversalis fascia at the bottom of the wound is thus exposed for 2.5 cm. (1 inch) or more. (5) The transversalis fascia is grasped with forceps and divided in the line of the transversalis muscle (trans- versely) — when the subserous areolar tissue and peritoneum will be exposed. (6) The peritoneum is grasped with two delicate toothed forceps, manipulated as in the median abdominal section, and divided with scissors to a limited and guarded extent. One blade of the scissors is then carefully introduced within 904 OPERATIONS UPON THE ABDOM1NO-PELVIC REGION, the abdominal cavity and the opening enlarged toward the median line and ~1 Fig. 659.— Appendicectomy :— A, Caecum; B, Ileum; C, Appendix; D, D, Ligatures tying off the mesentery of the appendix. the anterior superior iliac spine. The subperitoneal areolar tissue, trans- versalis fascia, and peritoneum may be simultaneously incised — but it is Fig. 660— Appendicectomy:— A, Edges of the mesenteriolum sutured together; B, B, Purse-string suture placed, the loop being grasped by forceps and the ends free. better to incise down to and recognize the peritoneum, and then to incise it separately and alone (Fig. 658). APPENDICECTOMY. 9°5 Operation. —The right index-finger is inserted within the abdominal cavity and the appendix sought. The caput coli, or some part of the ascending colon, is generally encountered at once — and may even bulge into the wound. Sometimes the appendix itself presents at once— though exceptionally. If the appendix is not at once manifest, its base is sought in its usual position— that is, upon the internal and posterior aspect of the caecum, about 1.7 cm. (ji inch) below the ileo-caecal valve. If the appendix is not readily found by this manoeuvre, draw out the first part of the ascending colon encountered, and then follow it down to the caput coli — the anterior of the three longitudinal bands of the colon will lead to the base of the appendix. Fig. 661. — Appendicectomy : — Dilatation of canal of thickened appendix preparatory to invagination, where invagination would be otherwise difficult. The appendix is now drawn out of the wound, and its treatment will depend upon the nature of the appendix and the individual views of the operator. (See Fig. 659.) (7) As soon as the appendix has been delivered without the abdominal cavity, it is well to pass a silk ligature, upon an aneurism-needle, around the appendix, about 2 cm. (f inch) from its base, piercing its mesentery. This ligature may be tightened at once or later — it is only a temporary traction- ligature or its tip may be grasped with forceps. The mesentery of the appendix should be ligated off with chromic gut, carried in a laterally curved aneurism- needle, proceeding from apex to base, or in the opposite direction if more con- venient — and tied in sections — the mesentery being then divided between 906 OPERATIONS UPON THE ARDOMINO-PELVIC REGION, appendix and ligatures. The main artery near the base should be securely tied. Fig.662.— Appendicectomy : — The stump of the appendix being invaginated in the grasp of forceps, and the purse-string about to be tightened. If bound down by adhesions, these should be separated by blunt dissection, or ligated and cut. Often the mesentery of the appendix must be ligated off Fig.663.— Appendicectomy :— A, The free ends, after knotting, of the purse-string which has invaginated the stump of the appendix into the caecum ; B, Position which reinforcing Lemberts would occupy, if used ; C, The sutured edge of the mesenteriolum. within the wound before the appendix can be delivered. The peritoneum should be sutured over the stump of the mesentery. The appendix is now APPENDICECTOMY. 907 treated in one of several ways. It is well to ascertain the patulousness of the lumen of the stump in advance, by the passage of a probe through its canal Fig. 664.— Appendickctomv :— A Method of Dealing with Thick Appendices, by Ligation and Depression into Cecum : — A, Clamping off appendix from caecum ; B (to left), Cuff of serosa turned back ; C, Stump of appendix ligated ; B (to right), Edges of meseiiteriolum sutured. Fig. 665.— APPENDICECTOMY: — A. Stump of appendix depressed into caecum ; B, Interrupted Lembert sutures closing serosa over stump ; C, Sutured edges of mesenteriolum. into the caecum, that drainage into the main intestine may be assured. The following methods of closing the appendix may be used; — (a) Dawbarn's 908 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Purse-string Method; a continuous silk purse-string suture, carried upon a straight needle, is passed through the serous and muscular coats of the caecum Fig. 666.— Appendicectomy : — The depressed appendix-stump and the invaginated serosa themselves invaginated into the caecum by a purse-string suture of the surrounding area. Fig. 667. — Halsted's Three-clamp Method or Removing the Appendix: — I. — Dawbarn's purse-string suture surrounds the base of the appendix. The artery of the mesentery is ligated and the severed margins sutured by an overhand suture. The appendix is crushed by three parallel artery-clamps. in a circle, about 6 mm. (J inch) from the base of the appendix, but not first tied. (See Fig. 660.) The loop opposite the free ends of this purse-string APEND1CECTOMY 909 suture is grasped by forceps held by an assistant, to steady the appendix against the counter-pull of the operator, who holds the free ends. The appendix is then divided transversely about 1.2 cm. (J inch) from its base — the canal of the stump may be dilated with special fine forceps (to aid in invagination) — and sometimes sterilized by the actual cautery point — the free end of the stump is then seized with the same forceps and invaginated into the caecum. (See Fig. 661.) While the stump of the appendix is held invaginated into the caecum, the operator draws upon the free ends of the purse-string suture (which have been loosely knotted with a friction-knot) until the slack of the loop held by the assistant is taken up — the assistant, letting go his grip Fig. 668. — Halsted's Three-clamp Method of Removing the Appendix: — II. — The central clamp is removed and the append x severed through its crushed portion by the actual cautery. of the loop with the forceps, takes the two free ends of the suture — tightening the friction-knot accurately at the very moment the operator quickly with- draws the invaginating forceps. A second knot is tied and the ends cut short. (See Fig. 662.) If considered necessary, two or three interrupted gut Lemberts may be used to further bury in the stump. (See Fig. 663.) This method of closure is especially applicable to appendices whose walls are of more or less natural thickness and softness — capable, in other words, of invagination, (b) Divide circularly the peritoneal coat of the appendix about 6 mm. (I inch) from the caecum — peel back this serous coat toward 910 OPERATIONS UPON THE ABDOM1M >-PELYIC REGION. the caecum — and, on a level with the turned-back serosa, divide the middle and internal coats of the appendix very near the caecum. (See Fig. 664.) See that the lumen of the stump is patulous by means of a probe, and cauterize the interior of the stump with a fine Paquelin point. The edges of the stump are then brought together either by fine silk sutures or by circular ligature. This short stump itself is then depressed (rather than invaginated) into the caecum (see Fig. 665) — and, after suturing the serosa over the stump, the surrounding area of the caecum, to the extent of 3 mm. (£ inch) from the base of the appendix, is invaginated by means of a purse-string suture which had been previously placed in the same manner as in the last method. (See Fig. 666.) Additional interrupted gut Lemberts may bring the edges of the furrow together, if considered necessary. This method is particularly appli- Fig. 669. -The Dissection of an Adherent, Embedded Appendix — with the Suturing of the Peritoneum over its Denuded Bed. cable to thick, hard, narrow-calibered appendices, (c) The peritoneal coat may be peeled back — the middle and internal coats divided transversely — and the peritoneal coat sutured over the cut middle and internal coats with Lemberts. (d) The mucous coat may be excised with fine, curved, sharp- pointed scissors, or burnt out with the actual cautery — and the serous and muscular coats sutured over it. (e) The same steps may be carried out as in "b," except that the stump may be simply depressed into the caecum and the walls of the caecum brought together with Lembert sutures in a straight line, (f) The Halsted "three-clamp" method of removing the appendix is especially to be recommended. The appendix is clamped near its base with a clamp strong enough to crush it (a large size artery-clamp) — a second one is applied above this, with handle in the opposite direction— and APPENDICECTOMY. 911 a third one below the middle one, with its handle running with the uppermost (Fig. 667). The middle clamp is then removed — and the crushed appendix severed with the actual cautery — after which it is invaginated into the caecum and the purse-string suture tightened — and the site reinforced by two or more Lemberts (Fig. 668). (8) The appendix having been removed and its stump sutured, the bowel is returned to the abdominal cavity — and the wound closed in the usual manner. Drainage is ordinarily not employed — unless specially indicated. Comment. — (i) If at any time during the operation more room be required, this may be gained by continuing the separation either upward or downward. In the latter direction the separation is accomplished by the Harrington- Weir method (page 810). (2) It often happens that the appendix must be dis- sected from a mass of more or less dense adhesions — in which cases the denuded bed should be protected by suturing peritoneum over it. APPENDICECTOMY THROUGH THE RECTAL SHEATH. Description. — This is, practically, the Battle- Jalaguier-Kammerer oper- ation (page 811) — and is especially adapted to acute cases, or cases in which complications are apt to be encountered and in which, therefore, the freest possible exposure is necessary. APPENDICECTOMY BY THE NOX -INTRAMUSCULAR METHOD. Description. — In this operation no attempt is made to separate the muscle-fibers of the abdominal wall, which are freely cut where they cross the line of incision. The method is applicable to "interval" and to pus cases — but guards the abdominal wall from hernia less well than does the method just described. Preparation — Position. — As in the Intramuscular Operation (page 901). Landmarks. — Anterior superior iliac spine; umbilicus; outer border of right rectus muscle. Incision. — Draw an imaginary line from the anterior superior iliac spine to the umbilicus — the incision will begin about 2.5 cm. (1 inch) above this line, and will run obliquely downward and inward, parallel with and about 1.2 cm. (h inch) to the outer edge of the right rectus muscle. Operation. — (i) The incision divides skin and fascia — passes through the external oblique approximately parallel with its fibers — divides the internal oblique and transversalis more or less transversely, and just to the outer side of the ending of their muscular fibers. (2) All bleeding vessels are seized, and the wound well retracted. (3) Divide the fascia transversalis, subperi- toneal areolar tissue, and peritoneum in the line of the original wound and with the usual precautions — especially guarding against adhesions. (4) Having opened the abdomen and retracted the lips of the wound well, the isolation and treatment of the appendix are carried on just as in the Intra- muscular operation of McBurney (page 901). (5) And the wound is closed as in median abdominal section (page 805). 912 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. APPENDICOSTOMY. weir's operation. Description. — The operation is practically an enterostomy — in which the appendix is made to open upon the skin surface — and through which drainage and irrigation of the intestinal tract are carried on. This measure finds its chief application in intractable cases of amebic dysentery. The appendix is exposed through the steps of the McBurney intramuscular exposure of the organ. I Fig. 670. — Appendicostomy : — The appendix is seen emerging from between the separated fibers of the internal oblique, below — and between the separated fibers of the external oblique, above. A rubber tube is in its lumen. Preparation — Position — Landmarks — Incision. — As in McBurney's intramuscular appendicectomy (page 901). Operation. — The steps of the operation are carried out as detailed in the above operation. The appendix is isolated and delivered through the smallest available intramuscular opening (Fig. 905). Whatever adhesions are encoun- tered are separated. The appendix is put under gentle traction and drawn ENTEROSTOMY IN GENERAL. 913 out of the abdomen until its base is in contact with the parietal peritoneum — where it is anchored to the parietal peritoneum by two catgut stitches, one through the mesoappendix and one through the seromuscular coats of the antimesenteric aspect of the appendix. The muscles are all allowed to fall together — and are reinforced by catgut suturing if indicated. The skin and fascia are sutured up to the exit of the appendix. The appendix itself, at its exit from the outer surface of the abdominal wall, is anchored to the skin by two seromuscular stitches of silkworm-gut. If practicable, the appendix is not opened for a couple of days — delaying until the general cavity is shut off by adhesions. The end of the appendix is then cut off transversely. Through its lumen a rubber or silk catheter is passed on into the caecum — and through this catheter the bowel is irrigated or drained. The catheter may remain in situ or be introduced during irrigations. When the appendicostomy has ceased to be of service, the wound sometimes closes spontaneously. At other times the abdomen must be opened, by a repetition of the original steps and the appendix removed in the usual manner. Comment. — In some cases the appendix can not be brought into the wound, owing to its situation or to adhesions, and in such cases, a caecostomy may be done through the same wound. This latter technic, indeed, is preferred by some surgeons to an appendicostomy. ENTEROSTOMY IN GENERAL. Description. — (1) Enterostomv consists in the making of a more or less permanent opening into some part of the intestinal canal, for the purpose of relieving obstruction or of furnishing nourishment — the opening thus made communicating with the external abdominal surface. This opening may be a Jejunostomy, Ileostomy, or Colostomy. When not specially designated. Enterostomy is generally understood to mean an opening of the small intes- tine, in which sense it will be here used. (Enterotomy has been incorrectly used to designate this operation.) If the opening be made high up in the small intestine, it may serve as an artificial mouth for nourishment (e. g., jejunostomy, near the stomach). If the opening be low down in the small intestine (e. g., an ileostomy, low down), or anywhere in the large intestine (e. g., colostomy), it will serve the role of artificial anus. In the last category of cases it is generally performed for some more or less permanent obstruction, the opening being, of course, above the seat of obstruction. (2) The manner of performing enterostomy will differ — as to whether a temporary opening is sought, which will, of its own accord, tend to close, — namely, a fecal fistula, which is generally done in some form of removable obstruction, — or whether a permanent opening is desired, which will, through a spur-like formation, tend to remain patulous — namely, an artificial anus, which is generally done in some form of irremovable obstruction. The technic of enterostomy, whether for artificial mouth, temporary fecal fistula, or permanent artificial anus, is practically the same as that for colostomy performed for temporary fecal fistula or permanent artificial anus — the chief difference being in the site of the operation. (3) Enterostomy (of the small intestine) is generally done upon the right side, and as near the caecum as possible. Where the operation is done for obstruction, the site is, naturally, always above the obstruction. The operation may be done in the median line or upon the left side. Frequently, especially in desperate and weak cases, the first coil of distended gut is opened. A permanent artificial anus is generallv made, 58 914 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. where possible, in the course of the descending colon, a description of which is given under colostomy. (4) The cause having been removed, for which the fecal fistula or artificial anus has been made, it is indicated to close the. opening by operation if nature does not do so. (5) The site of choice for opening the intestine for temporary fecal fistula, or permanent artificial anus, is in the colon. (See Colostomy, page 916.) RIGHT INGUINAL ENTEROSTOMY (OR ILEOSTOMY) FOR THE ESTAB- LISHMENT OF A TEMPORARY FECAL FISTULA OR A PERMANENT ARTIFICIAL ANUS. Description. — (A) Temporary Fecal Fistula 0} Small Intestine.- — An in- cision having been made in the right inguinal region, the first distended coil of intestine above the caecum is drawn out and attached to the abdominal wall, on a level with, or but slightly projecting above, its surface. While the operation, as originally devised by Nelaton, did not follow the intramuscular lines, it should do so where possible. No attempt is ordinarily made to remove the cause of the obstruction. The opening is meant to be but temporary, and if it does not close spontaneously, it is closed by operation subsequently. (B) Permanent Artificial Anus of Small Intestine. — Enterostomy for the establishment of a permanent artificial anus differs from enterostomy for tempo- rary fecal fistula, in that the former is performed in cases where the obstruction is irremovable, and also where it is sought to prevent the passage of intestinal contents into the limb of the bowel below the opening. The typical operation of enterostomy for the establishment of a permanent artificial anus is seen in the operation of Colostomy (as performed for inoperable obstruction of the rectum, q. v.) . The operation to be here considered is simply an application of those principles to cases of the small intestine where, upon opening the small bowel above the seat of obstruction, it is found the opening must be more or less permanent. It is even of greater importance that a permanent artificial anus of the small intestine should be lower down than a temporary fecal fistula. It is well to follow the intramuscular manner of abdominal incision, where possible — both as a guard against hernia and for gaining something of a sphincteric control of the intestinal opening. The only practical differ- ence between this and the preceding operation is in the manner of attaching the knuckle of intestine to the abdominal wound. Preparation. — As for median abdominal section. Position. — Patient supine, with right side near edge of table. Surgeon on side of operation — assistant opposite. Landmarks. — Outer portion of Poupart's ligament; deep epigastric artery. Incision. — About 5 to 7.5 cm. (2 to 3 inches) (according to the thickness of the abdominal wall) — placed about 4 cm. (1^ inches) above and parallel with the outer part of Poupart's ligament, and external to the deep epigastric artery. Operation for Temporary Fecal Fistula of Small Intestine. — (1) Having followed the steps of the intramuscular incision of the abdominal wall (page 807) and retracted the lips of the wound, the caecum is sought with the finger and located as a rallying-point. The site of the obstruction is then located if possible, and, if so, the first distended coil of intestine above the obstruction is caught and brought into the wound. Where the source of RIGHT INGUINAL ENTEROSTOMY FOR TEMPORARY FISTULA. 915 obstruction cannot be found, any distended coil of intestine is taken and brought forward (which will probably be a portion of the lower ileum) . In bringing the gut forward into the wound, its normal relations and direction should be main- tained, as far as possible — and only its convex, antimesenteric aspect should project from the wound, but this aspect should well fill the portion of the wound to be left open, and any excess of intestine from above should be returned to the cavity, that the upper part may not sag down upon the lower. (2) The excess of length of the wound is now closed from either end, either by through-and- through suturing of all layers with silkworm-gut or silk, or by layer-suturing with chromic gut. When shortened to the desired extent, in cases where the length has been excessive — or from and beginning with the first suture at either end, where the length has only been moderate — the serous and muscular coats of the intestine are included in the suture at either end of the wound, thus fixing the gut to the abdominal wall at the same time the lips of the ends of the wound are approximated. If necessary, two fixation-sutures may be applied laterally, passing through serosa and musculosa of the intestine and all the layers of the abdominal wound. (3) An elliptical area of the presenting gut is now sutured to the parietal peritoneum by a continuous or interrupted fine silk suture, passing through serous and muscular coats of the intestine, on the one hand, and peritoneum and transversalis fascia, on the other. A second row of continuous or interrupted silk or gut sutures may then be placed, uniting the skin of the abdominal wound to the serous and muscular coats of the intestine, including the free margin of the parietal peritoneum external to the elliptical suture in the presenting gut. Or the second row of sutures may simply unite the edge of the abdominal skin to the free margin of the parietal peritoneum. A union considered firmer bv some may be secured by first suturing the parietal peritoneum to the skin all around the permanent opening — and then suturing the intestine to this. (4) If haste be necessary, an opening is at once made into the lumen of the gut, by a quick, controlled stab with a narrow, sharp knife and increased to the desired extent with blunt scissors (having ascertained that all the coats of the intestine have been pierced before inserting the blade of the scis- sors). If no haste be necessary, a delay of two or three days for union of the serous surfaces and exclusion of the abdominal cavity is preferable ("operation in two stages"). The intestinal contents are allowed to escape of their own accord. Comment. — (i) The operation may be performed through a median or other incision — or the obstruction may be located through a median incision and enterostomy done through a lateral incision — thus giving greater room for diagnosis and possibly for correcting the cause of trouble — the excess in length being closed in at either end before attaching the intestine. Left inguinal enterostomy may also be done. (2) Avoid wounding the deep epi- gastric artery and twisting the gut. (3) As small an opening as consistent with efficient emptying should be made, to make the subsequent closing easier. Operation for Permanent Artificial Anus of Small Intestine. — (i) The early steps of the operation are the same as when a temporary fecal fistula is to be made (page 914). (2) When the knuckle of bowel to be drawn into the wound is isolated, it is important and necessary to determine which is the prox- imal part of the coil. This having been done, and the knuckle having been drawn into the wound, the excess of intestinal length which tends to sag down into and out of the upper angle of the wound is taken up and passed on down through the lower angle of the wound (so as to do away with the likelihood of future hernia of the proximal limb of the intestine through the wound) . (3) 0l6 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. The desired knuckle of intestine having been isolated and retained within reach by a temporary loop of silk passing through the antimesenteric aspect of its outer coats, the two ends of the wound are closed toward the center, as far as thought necessary, by tier suture or by through-and-through suture. (4) The parietal peritoneum is drawn out and sutured to the abdominal skin, or as nearly in contact with it as possible all around the wound. (5) The knuckle of intestine is now drawn entirely out of the wound, until the mesenteric attach- ment is on a level with the skin. Care is taken that the intestine is not twisted and that the normal relations are maintained, as nearly as possible. Care is also especially taken that the proximal limb of the loop is identified and kept uppermost in the wound, is given plenty of room in the opening, and that it is made to compress the distal limb against the lower angle of the wound (to prevent the passage of intestinal contents from the proximal into the distal limb). While held in this position, the knuckle of intestine is sutured into permanent position — by continuous or interrupted silk sutures passing through the serous and muscular, and part of the submucous, coats of the intestine, on the one hand, and the parietal peritoneum (which has been already attached to the skin) on the other. (6) If no haste exist, the opening of the intestine is deferred for two or three days, until serous adhesions have occurred. If haste be necessary, the opening may be made at once, by cutting out transversely, with scissors, a triangular piece of the whole thickness of the intestine, with its base at the free border and its apex at the mesenteric attach- ment. Comment. — (1) This, as well as the operation for fecal fistula, may be made in the median or left lateral regions, but it is even more important than in temporary fecal fistula that the opening be as low as possible, to prevent starvation. (2) A somewhat smaller opening in the peritoneum is generally made than in fecal fistula. (3) A glass rod may be run through the mesentery, as is sometimes done in colostomy — to hold the coil of intestine in place. (4) It is well to put a few interrupted Lembert sutures along the lateral aspect of the two limbs of the knuckle, where they come in contact. (5) Where the intestine must be opened at once, only a limited opening is then made — the permanent opening being made after adhesions form. COLOSTOMY IN GENERAL. Description. — Colostomy signifies the establishment of an artificial open- ing, either temporary (fecal fistula), or permanent (artificial anus), in some part of the Colon. While a similar opening of the caecum is termed cfficos- tomy, and of the sigmoid colon, sigmoidostomy, both operations are generally, though less specifically, included under the term colostomy. The descending colon is the site generally chosen — the cause usually being obstruction, or some condition, distal to the site of operation. Chief Varieties of Colostomy. — (1) Inguinal Colostomy (Iliac Colos- tomy, Anterior Colostomy, operation of Littre) signifies the opening of the sigmoid flexure of the colon in the left iliac region, through the peritoneal cavity. The ascending colon is much less frequently opened. (2) Lumbar Colostomy (Posterior Colostomy, operation of Amussat) signifies the opening of the ascending or descending colon, preferably the latter, through the loin, extraperitoneallv. In Favor of Inguinal Colostomy. — The artificial anus is more conve- niently placed; — the operation is both easier and quicker; — the position for anesthesia is better; — the wound is not so deep; — there is no chance of failing because of the presence of a mesentery (which sometimes interferes, by its LEFT INGUINAL COLOSTOMY. 917 presence, with the operation posteriorly) ; — the exploration of the abdomen is possible; — the shallower wound makes the formation of a spur, or any other indicated step, easier. In Favor of Lumbar Colostomy. — The peritoneum is generally not opened; — where the sigmoid colon is bound down, and therefore not easily accessible by the anterior operation; — prolapse (hernia) is not so likely. Observations. — (i) Left Inguinal Colostomy is the operation of choice. Lumbar colostomy is now rarely performed. (2) The ascending colon has a mesentery in 26 per cent. — and the descending colon in 36 per cent, of cases (Treves). This means that in those cases where a mesentery is en- countered, in operating posteriorly, the operation cannot be completed extra- peritoneally unless the leaves of the mesenterv can be separated and the mesenteric aspect of the colon thus approached. (3) The positions of the ascending and descending colons are represented, in the loins, by vertical lines drawn upward from a point 1.3 cm. (^ inch) posterior to the center of the crest of the ilium (that is, a point 1.3 cm., or \ inch, posterior to a point midway between the anterior and posterior superior iliac spines). (4) If a temporary fecal fistula be sought, no spur should be formed in suturing the knuckle into position. If a permanent artificial anus be sought, a spur should be made in the knuckle, to prevent the flow of contents of the proximal into the distal gut. (5) By operating in the intramuscular manner, hernia is less apt to follow — and, additionally, greater sphincteric control is secured. (6) Where a temporary opening is sought, the bowel is opened longitudi- nally — and transversely where a permanent opening is planned. LEFT INGUINAL COLOSTOMY. Description. — Left Inguinal (Iliac or Anterior) Colostomy consists in making a more or less permanent opening in the sigmoid flexure of the colon, in the left iliac region, through the peritoneal cavity. The manner of suturing the intestine to the abdominal wall will differ, dependent upon whether a temporary fecal fistula or a permanent artificial anus be sought. Also the final steps of the operation will differ, dependent upon whether the bowel is to be opened at once, or whether the operation is to be performed in two stages and the bowel opened in three or four days, after adhesions have formed and the peritoneal cavity is shut off — and also as to whether the opening is to be temporary or permanent. The operation is generally done upon the left side — though it may be done upon the right — the steps being the same in either case. The operation is generally done for some obstruction (usually cancer of the rectum), or other condition, distal to the site of the colostomy. Preparation — Position. — As for median abdominal section. Landmarks. — Umbilicus; left anterior superior iliac spine; Poupart's ligament. Incision. — About 5 to 6.5 cm. (2 to 2\ inches) long — crossing, at right angles, an imaginary line from the umbilicus to the left anterior superior iliac spine, at a point about 4 cm. (\\ inches) internal to the iliac spine, the center of incision being upon this imaginary line. The incision will, there- fore, be about parallel with Poupart's ligament and with the fibers of the external oblique. This incision corresponds with McBurney's incision for appendicectomy, except that it is upon the left (see Fig. 576). Operation. — Up to the opening into the peritoneal cavity, the steps are practicallv the same as in McBurney's intramuscular operation for the re- moval of the appendix (page 807). (•) Incise the skin and fascia in the gi8 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. above line, clamping the bleeding vessels. (2) Separate and retract the fibers of the aponeurosis of the external oblique in the line of their cleavage. (3) Separate and retract the fibers of the internal oblique in their cleavage. (4) Similarly separate and retract, intramuscularly, the fibers of the trans- versalis. (5) Divide the transversalis fascia and subperitoneal connective tissue in the line of separation of the transversalis muscle, for about 4 to 5 cm. (ij to 2 inches). (6) While holding the parts apart, replace the re- tractors which have retracted the several tissues in their cleavage line by two retractors — drawing the lips of the wound asunder in the two most con- venient directions. (7) Introduce the right index-finger into the peritoneal cavity toward the left iliac fossa — entering at the outer angle and passing downward and toward the median line, with the finger held in a hook-like Fig. 671. —Left Inguinal Colostomy — for Temporary Fecal Fistula: — A, A, Temporary ligatures drawing sigmoid flexure of colon into wound ; B, B, Sutures uniting peritoneum and lower part of muscular wall of wound, to serous and muscular coats of intestine ; C, C, Sutures pass- ing through peritoneum and lower part of muscular wall, on one side ; serous and muscular coats of intestine, in center ; and peritoneum and lower part of muscular wall, on opposite side ; D, D, Sutures passing through entire thickness of muscular wall. Position of future axial incision in colon is shown by dotted lines. fashion — hooking up the sigmoid flexure of the colon and bringing it out into the wound — recognizing it by its appendices epiploicae, its sacculations, and its longitudinal bands. After drawing the loop well out, return into the lower angle of the wound all the excess drawn out of the upper angle, until checked by the mesocolon — thus assuring that there will be no downward sagging of the intestine from above, with consequent tendency to hernia of the proximal gut through the artificial opening. The steps of the operation from this point on will be determined by, (a) the object sought, as to per- manency of opening — and, (b) as to whether the intestine must be opened at once, (a) Where a temporary fecal fistula is intended : — In this case the presenting convexity alone (representing from one-half to three-fourths of the circumference of the intestinal tube) is sutured into the wound, the LEFT INGUINAL COLOSTOMY. 919 convexity of the gut being held, during suturing, into contact with the wound by two silk traction-sutures passed through the serous and muscular coats, preferably through the superior longitudinal band of the colon — (or this aspect of the intestine maybe gently grasped with forceps). (See Fig. 671.) Continuous or interrupted silk or chromic gut sutures are now passed through the serous and muscular coats of the intestine, on the one hand, and the peritoneum and muscle tissue of the abdominal wound, on the other — passing sufficiently far from the free edge of the peritoneum so that some width of peritoneum will be approximated to gut — thus bringing serous surfaces into contact. Preferably the lower line of sutures is passed through the lower longitudinal band — and the upper line, near the mesentery. Any excess of abdominal wound is first closed from either end by interrupted sutures passed as in abdominal section. If haste is unnecessary, the opening is made in two or three days, when the serous surfaces have united. An incision of about 2 cm. (f inch) is made into the long axis of the gut — and Fig. 072. — Left Inguinal Colostomy — for Permanent Artificial Anus : — A, A, Temporary traction-ligatures drawing sigmoid flexure of colon into wound ; B. B, Sutures uniting peritoneum and lower part of muscular wall of wound, to serous and muscular coats of intestine ; C, C, Sutures pass- ing through peritoneum and lower part of muscular wall, on one side ; serous and muscular coats of intestine, in center; and peritoneum and lower part of muscular wall, on opposite side ; D, D, Sutures passing through entire thickness of muscular wall. Position of future excision of triangular piece of colon is shown by dotted line. the edges of the intestinal wound (all of the coats) are sutured to the skin of the abdominal wound. If haste is necessary, the above is done at once. (b) Where a permanent artificial anus is intended: — The knuckle of intestine is drawn well out of the wound, exposing its mesentery. Incise the mesentery, in a line with its vessels, and near the bowel — and insert a short glass rod, or similar object, through this opening — the ends of the glass rod resting on either side of the edges of the wound. If the slit through the mesenterv be excessive, the excess is gut-sutured. The two limbs of the knuckle above and below the rod are sutured to each other by gut sutures 920 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. passing through serous and muscular coats and approximating their mesen- teric aspects, thus forming a spur of the walls so brought into apposition. (See Fig. 672.) Having first closed in any excess of abdominal wound from either end, by sutures applied as in abdominal section, the protruded knuckle is then sutured into the wound by silk or chromic gut sutures passing through serous and muscular coats of the intestine, on the one hand, and through peritoneum and muscle tissue of the abdominal wound, on the other. If haste be not necessary — wait two or three days until the serous surfaces have united and the peritoneum has been shut off — then seize, with rat- tooth forceps, the prominent knuckle of intestine and cut out transversely, in a line with the rod, a V-shaped segment of gut, with scissors — excising the entire, or nearly the entire, diameter of gut, with the apex of the excised portion ending where the limbs have been sutured together. Let the distal end of the intestine retract. Suture the margins of the proximal end to the skin of the abdomen. Remove the glass rod in about seven days — and the sutures in about ten. If haste be necessary — the above is done at once. Comment. — (1) Slight variations occur in the operation as done by Maydl; — the knuckle of intestine is drawn out — the glass rod passed through the mesentery — the limbs of the loop sutured together as above, — following which the steps will differ as to the object sought; — (a) If the intestine is to be opened at once — it is stitched to the parietal peritoneum, as described above; — (b) If the intestine is not to be opened at once — it is not stitched, but simply gauze is packed around and under the glass rod; — (c) If the opening is to be permanent — the bowel is to be divided transversely in from four to six days, through one-third of its diameter — an irrigating tube is then inserted and the intestines washed out — and in two or three weeks later the transverse division is completed — the edges of the proximal gut are sutured to the margins of the skin and the distal end left unsutured — and the rod is then withdrawn; — (d) If the opening is to be temporary — the intestine is incised in its long axis — and, when the opening is ready to be dispensed with, the rod is withdrawn and the knuckle of intestine allowed to retract (no suturing to the skin having taken place) — the opening often closing of its own accord. (2) As small an abdominal incision as possible should be made, in order to lessen the chance of hernia. The higher up the abdominal wall the opening is made, the less the chance of hernia. Some surgeons make the incision parallel with the outer third of Poupart's ligament. (3) If the small intestine, mesentery, or omentum present during operation, they are pushed back into the abdomen. (4) If the sigmoid flexure cannot be located readily, it can be found by injecting water through the rectum, while the finger in the wound feels for the enlarging bowel. (5) The use of the rod, or other object, to pierce the mesentery is not absolutely necessary. The mesocolon can be sutured to the edges of the abdominal wound instead. (6) In stitching the intestine into the wound, the stitching is so done as to give the proximal part of the loop ample room, and, at the same time, make pressure upon the distal part, to prevent the passage of intestinal contents into it. (7) Sometimes the parietal peritoneum is drawn sufficiently out to be sutured to the margin of the skin around the wound, the muscle layers not being included — and the intestine is then sutured to this parietal perito- neum. But firmer union is probably secured by the principal method de- scribed above. (8) Sometimes (though hardly to be recommended) instead of making a spur, which is often inefficient, the bowel is cut through above the obstruction (when performed for that purpose) and the lower end is closed by inverting the edges of the distal end by a double row of sutures, the outer row, an overhand, continuous suture; the second, a row of Lem- ANTERIOR INTRAMUSCULAR COLOSTOMY. 921 berts; and this end is dropped into the abdominal cavity. The edges of the proximal gut are then sutured into the abdominal wound by two tiers of sutures; the lower, of chromic gut, through the serous and muscular coats of the gut (a short distance from the edge), and peritoneum and muscles of the abdominal wound; the marginal, of silk, through all the coats of the gut, and the skin. The method, however, is not indicated when it is desirable to keep the upper end of the distal gut patulous, where drainage below is difficult. Note. — Right Inguinal Colostomy, or Caecostomy, is but rarely done. The contents of the ascending colon (from the nearness of the small intestine) are more liquid and less easily controlled through such a fistula or anus. The absence, or shortness, of the mesentery also makes the attachment to the abdominal wall more difficult. The operation is, practically, done only when the site of the trouble is uncertain, the caecum at the same time being distended, — or when, in doing a Left Inguinal Colostomy, it is impossible to find the sigmoid colon. When the operation is done at all, it is generally only a temporary fistula which is made, as, when this site is selected, it is usually an operation of emergency only. A Transverse Colostomy is even rarer. Fig. 673.— Mixter's Anterior Colostomy:— I.— Quadrilateral flap of skin and fascia turned outward, exposing rectus. Separation of libers in outer part of rectus. (Redrawn from Gould.) ANTERIOR INTRAMUSCULAR COLOSTOMY. mixter's operation. Description. — The sigmoid is broughtout through the split rightrectus mus- cle, which is sutured between the limbs of the loop — after which a bridge of skin 922 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. and fascia is sutured under the loop and between the distal and proximal limbs. In this method some muscular control of the openings is secured, and the openings of the proximal and distal ends are separated some distance from each other. Preparation — Position — Landmarks. — As in Left Inguinal Colostomy, page 917. Incision. — Commences on a level with the umbilicus, over the outer third of the right rectus muscle — passes vertically downward for 5 cm. (2 inches) through skin and fascia to the musculature — thence turns inward at a right angle and runs in a straight line for 5 cm. (2 inches) — thence downward at a right angle and runs in a straight line for 5 cm. (2 inches) — thence outward at a V Fig. 674. — Mixter's Anterior Colostomy: — II. — Loop of sigmoid drawn through separ- ated fibers of rectus — taut mesentery incised — median portion of rectal fibers sutured together between proximal and distal coils. (Redrawn from Gould. J right angle and runs in a straight line for 5 cm. (2 inches) — and finally turns again at a right angle and runs downward in a straight line for 5 cm. (2 inches) — as shown in Fig. 673. Operation. — The flap thus indicated, consisting of skin and connective tissue, overlying the abdominal muscles is raised and retracted outward — as shown in Fig. 673. The anterior layer of the rectal sheath is incised, and the longitudinal fibers of the rectus are separated in the outer part of the rectus by blunt dissection. The posterior layer of the rectal sheath, trans- versalis fascia, subserous areolar tissue, and peritoneum are incised in the same longitudinal line. The sigmoid is located and brought out of the abdomen through this opening and the loop of intestine pulled upon until both of its limbs are taut — to render prolapse less likely. The mesentery ANTERIOR INTRAMUSCULAR COLOSTOMY. 923 of the sigmoid is incised at a right angle to the long axis of the bowel for about 5 cm. (2 inches). The incised edges of the mesentery are retracted — while the central portion of the separated border of the split rectus are sutured together with catgut sutures through the margins of the incised mesentery (Fig. 674). Over the sutured portion of the rectus muscle and under the coil of sigmoid the skin-flap is sutured into its original position, by means of one layer of interrupted sutures through the fascia and another through the skin. The two limbs of sigmoid are thus separated, over a space of about 5 cm. (2 inches), by a bridge of muscle, fascia, and skin. Where acute obstruction exists, a right-angled Mixter glass tube, of large size, is Fig. 675. — Mixter's Anterior Colostomy: — III. — Skin and fascia flap sutured back into place beneath arch of sigmoid. Mixter tube sutured into intestine. (Redrawn from Gould.) introduced into the lumen of the intestine at once and held in situ by a purse- string suture (Fig. 675). A rubber tube is attached to the glass tube and carried to a receptacle for feces. The intestine is dusted with zinc oxid powder and covered with gutta-percha tissue, in order to prevent the peritoneal coats from adhering to the dressings. If no necessity exist for haste, the dressing is removed in four or five days and the loop of intestine excised about 1.3 cm. (^ inch) above the skin surface. The mucous membrane is trimmed to the level of the muscle coats, and the free margins whipped with a continuous suture (Fig. 676). The upper, or proximal, and the lower, or distal, openings will lie some distance from each other — thus preventing feces from the former 924 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. getting into the latter — the proximal opening serving for the escape of feces and the distal for irrigation of the lower bowel, where that is indicated. The split rectus muscle furnishes some de- gree of sphincteric control. LEFT LUMBAR COLOSTOMY. Description. — Left Lumbar (Pos- terior) Colostomy consists in making an opening posteriorly through the loin, over the descending colon — extra-peri- toneally. Rarely the opening is made over the ascending colon, in the right loin. Preparation — Position. — As for median abdominal section. Position. — Patient lies upon oppo- site side and near edge of table, with a hard pillow, or support, under the opposite loin, to render prominent the site of operation, — Surgeon on side of operation, — Assistant opposite. Landmarks. — Position of descend- ing colon — namely, a line extending vertically upward from a point about 1.2 cm. {\ inch) posterior to the center of the iliac crest to the twelfth rib — which line will about correspond with the outer border of the quadratus lumborum. Incision. — About 7.5 to 10 cm. (3 to 4 inches) long — placed obliquely between the twelfth rib and the crest of the ilium, with its center over the center of the vertical line representing the course of the descending colon — which incision will run in the direction of a line extending from the anterior superior iliac spine to the angle formed by the twelfth rib and the outer border of the erector spina? muscle, the incision beginning at about the outer border of this muscle. (See Fig. 677.) Operation. — (1) Divide the skin and the thick subcutaneous fatty fascia, clamping all vessels. (2) Divide the latissimus dorsi and its aponeurosis in the posterior part of the wound — and the posterior part of the external oblique in the anterior part. (3) Divide the internal oblique, exposing the lumbar fascia posteriorlv. (4) Recognize and protect the twelfth dorsal nerve and accompanying branch of the lumbar artery. (5) Divide the lumbar fascia and the transversalis muscle, exposing the anterior margin of the quadratus lumborum (which rarely requires division) in the posterior angle of the wound, and the transversalis fascia. (6) Divide the transversalis fascia, from the quadratus lumborum to the anterior angle of the wound, exposing the subperitoneal tissue — avoiding the twelfth nerve on its way from the quadratus lumborum to the transversalis muscle. (7) A distended colon may now protrude through the subperitoneal connective tissue into the wound- Fig. 676. — Mixter's Anterior Co- lostomy: — IV. — The sigmoid loop excised 1.3 cm. (^ inch) from skin — and the afferent and efferent ends sutured to the skin. (Re- drawn from Gould.) LEFT LUMBAR COLOSTOMY 925 this areolar fatty tissue, often very thick and fatty, lying around the kidney, being separated by the fingers and forceps, or by a blunt dissector. If the colon does not thus protrude, insert an index-finger through this subperi- toneal areolar tissue, while the parts are well retracted behind the lumbar fascia — following, with the back of the finger toward the patient's back, along the anterior surface of the quadratus lumborum, aiming for the angle between the quadratus lumborum and the psoas, toward which angle the posterior surface of the colon presents, lying anterior to the plane of the kidney, the lower portion of which (kidney) is generally felt. The finger which has passed through the subperitoneal areolar tissue and is carefully working behind the peritoneum is aided in its search by rolling the body over toward the side of operation, while the assistant presses the anterior abdominal wall firmly, so as to aid the colon, by gravity and pressure, to fall, as it were, into the curved index finger. The colon is generally recog- nized by the thickness of its wall, by the absence of the peritoneal coat, and sometimes by the posterior longitudinal band. (8) Grasp the non-mesenteric aspect of the colon with the fingers, or special forceps, and bring it out to a level with the surface — no loop being here drawn out of the wound as in the anterior operation. The colon is held in place with forceps, or traction- sutures, or temporarily allowed to fall back into place — while the excess of the abdominal wound is closed from either end — by layer suturing with chromic gut, or by mass-suturing with chromic gut, silk, or silkworm-gut, leaving just space enough for the emergence of the gut. (9) The convex dome of the gut is sutured into the lips of wound — by interrupted sutures Fig. 677.— Left Lumbar Colostomy :— A, Twelfth rib; B, Iliac crest; C, Latissimus dorsi muscle; D, External oblique muscle ; E, Left kidney; F, Descending colon; G, Line of incision for left lumbar colostomy. of silk passing through the fibrous and muscular coats of the intestine, on the one hand, and the skin of the abdomen, or as near it as possible, on the other. (10) If haste be unnecessary — several days are allowed to pass, for 926 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. union of intestine to abdominal wound to occur, and then the intestine is incised and the lips of the intestinal wound sutured to the lips of the ab- dominal wound— by interrupted sutures of silk, or silkworm-gut, passing through all the coats of the bowel, and through the skin of the abdomen, or as near it as possible — the sutures being passed from the skin into the gut (making infection less likely). (11) If haste be necessary— the above incision is made at once. (12) If a temporary fecal fistula be intended — the gut is incised in its longitudinal axis. (13) If a permanent artificial anus be intended — the gut is drawn as far into the wound as possible (which is never as far as in the anterior operation) and divided nearly through — the object being to form a spur as in the anterior operation. Comment. — (1) The outer border of the erector spinae is the superficial muscular guide to the colon. The outer border of the quadratus lumborum mav be cut to expose the colon if necessary. (2) The operation is difficult in very thick loins — thorough retraction aids the steps. (3) It is important to recognize and open up the transversalis fascia — and not mistake it for the peritoneum. The bulging peritoneum has been mistaken for the colon. The duodenum has been mistaken for the ascending colon in operating on the right side — and the stomach for the descending colon in operating on the left side. The kidneys and small intestines have been mistaken for the colon. The small intestines, when encountered, lie external to the colon. The colon is generally distinguished by its longitudinal bands, anterior, posterior (at the mesocolon, when the mesentery is present), and one internal, — by its greater fixity, — and by its sacculations (often filled with scybala). The descending colon is sometimes congenitally absent. The large intestine may be distended with air or water to aid its recognition. The empty colon is often hard to detect. If all means of detection fail, do a median abdominal Fig. 678.— Transverse Section of the Posterior Abdominal Wall in the Lumbar Region :— A, Erector spinae muscle; B, Quadratus lumborum; C, Psoas magnus ; D, Latissimus dorsi; E, External oblique ; F, Internal oblique; G, Transversalis ; H, The descending colon shown in its usual position, and without a mesentery, as usual ; I, The ascending colon shown with a mes- entery (an exceptional occurrence). (Modified from Gray.) section — find the bowel — and then complete the lumbar operation. (4) If the peritoneum be accidentally opened, close it by gut suture if possible. If this cannot be done, no harm is generally done by accidentally opening the peritoneum in this locality. Draw the intestine into the wound and OPERATION FOR FECAL FISTULA AND ARTIFICIAL ANUS. 927 fix it there. (5) If the mesocolon be present, the abdominal cavity must be opened, unless the laminae of the mesentery can be split — which can generally be done. (See Fig. 678) A branch of the inferior mesenteric artery may guide to a separation of the laminae. (6) The non-peritoneal surface of the colon is generally thickly covered with fatty areolar tissue — which also inter- venes between the colon, in front, and kidney, diaphragmatic crura, and quadratus lumborum, behind. (7) The empty descending colon is apt to tend further toward the median line, behind the border of the quadratus lumborum, than a distended one — so that, in such cases, the normal site of the distended colon is more apt to be occupied by peritoneum, which is consequently, under these circumstances, more apt to be opened. (8) Owing to the fixity of the colon, it is often hard to get enough of it into the wound to form a spur, in the operation for artificial anus — though enough for a fecal fistula is generally to be gotten. If difficulty be experienced in causing sufficient bowel to protrude, a Paul tube may be tied into the gut, the balance of the wound being closed about it. (9) Right lumbar colostomy may be, but rarely is, performed. OPERATION FOR THE CLOSURE OF FECAL FISTULA AND ARTIFICIAL ANUS. Description. — Sometimes occurring alone, and sometimes as a result of the operations just described for the formation of fecal fistula and artificial anus, a more or less permanent fistulous tract between the intestinal canal and the abdominal wall is left. The simplest forms of such fistulous tracts tend to close of their own accord, but the more com- plicated generally require some operation for their closure. These fistula? lead- ing to some part of the large or small intestine are generally one of three kinds: — (1) The gut is not bent upon itself to any extent; there is no spur; but little of the intestinal wall is involved; the open- ing is small; the skin and intestinal mucous mem- brane are connected by a sinus-like communication (see Fig. 679, A);— (2) The gut is bent somewhat more upon itself; an in- complete spur is present; more of the intestinal wall has been lost; the opening is larger; the intestinal mucous membrane and the abdominal skin are more nearly in contact (see Fig. 679, B); (3) The gut is more acutely bent on itself; a marked spur is present, forming an Fig. 679.— Forms of Fecal Fistula and Artificial Ani : — A, First form, intestine connected with skin by sinus- like communication; B, Second form, intestine and skin more directly in contact and gut slightly bent on itself; C, Third form, showing formation of marked spur. 928 OPERATIONS UPON THE ARDOMINO-PELYIC REGION. obstruction to the intestinal passage; the amount of intestinal wall lost may be variable; the condition present generally being an exaggeration of (2) (see Fig. 679, C). The procedure for the closure of the fistulous tract will be modified, therefore, by the various degrees of fistula found and by the extent of the adjacent adhesions. Preparation. — Neighboring skin should be gotten as healthy as possible preliminarily. Evacuation of intestinal canal; local irrigation; vicinity of fistula shaved. Just preceding operation, sinus is to be gently scraped and again irrigated — after which it is packed with a small sponge', or with gauze, attached to a piece of silk, the end of which is left out — and the lips of the fistula are then tightly and deeply sutured and the long ends of the Fig. 680. — Operation for Cure of Fecal Fistula or Artificial Anus: — A, Skin opening of fistula closed by sutures used as traction-sutures; B, Ellipse of abdominal wall to be removed, with its center occupied by external opening of fistula ; C, Ellipse of intestine to be removed, including neck of fistulous tract ; D, Position of some of the Lembert sutures which will close in entire elliptical opening in intestine after excision of fistulous tract. sutures, after tying, are knotted, or grasped by clamp-forceps, and drawn upward. Position. — Patient supine on edge of table nearer fistula; Surgeon on side of fistula; Assistant opposite. Landmarks. — Site of fistula and known relation of neighboring parts. I. Cases in which the operation involves the peritoneal cavity — no extensive adhesions existing — or where it is desired to free existing adhe- sions before excising the fistula: Incision. — An elliptical incision is made around the fistulous opening — its long axis will generally be vertical in operating upon fistulae of the small intestine, and will usually correspond with the long axis of the large gut in operating upon parts of the colon — and the length and breadth of the OPERATION FOR FECAL FISTULA AND ARTIFICIAL ANUS. 929 ellipse will be planned, as far as possible, to extend beyond the adhesions probably surrounding the sinus. Operation. — (i) Having sutured the fistulous opening and using the sutures as traction-loops, this incision is carefully deepened on each side — clamping bleeding vessels — and guarding against opening the peritoneum prematurely, or cutting into an adherent coil of intestine. (See Fig. 680.) (2) In passing through the thickness of the abdominal wall, the course of the incision is directed by the sensation and form of the distended fistula and by the left index-finger within the wound. In difficult cases, and espe- cially in devious fistula 1 , it may be necessary to introduce a sound, or bougie, through the sinus as a palpable guide. (3) Having deepened the incision, all around, down to the peritoneum, the abdominal cavity is now carefully opened in the line of the original ellipse. If the ellipse lie without the site of adhesions, no great difficulty will be experienced. If it lie in part over adhesions, a finger introduced through the site leading into the free peritoneal cavity and swept around the sinus will serve for exploration and as a guide to the separation or incision of the adherent portion. If the ellipse lie wholly over adhesions and come down upon these all around, great care is required to recognize the plane of adhesions when reached, and greater care still in separating or dividing them in the line of the ellipse. (4) Having thus reached the intestines, an isolated oval island of tissues (included in the original ellipse and in deepening the ellipse to the intestinal wall) will be evident — free above and continuous with the intestine below — through the center of which the sinus extends. The intestine is carefully freed and drawn out into the abdominal wound, with the oval island of tissues still adherent — and the neighboring parts packed off with gauze. (5) Having pressed away the intestinal contents and clamped the gut above and below the site of the sinus, a small elliptical incision is made in the gut, circumscribing the con- nection of the sinus with the gut, and having its long axis coincident with that of the gut — and the incision is deepened through the wall of the gut, thus excising an elliptical piece of the intestinal wall, representing the intes- tinal end of the sinus. The escape of intestinal contents is especially guarded during this excision. (6) The wound of the intestine is at once closed by a double row of sutures — a continuous overhand suture of all the coats, thus bringing together the free edges — followed by interrupted Lemberts of the outer coats. (7) The abdominal wound is closed in the usual manner. II. Cases in which the operation does not involve the peritoneal cavity- extensive adhesions extending around the sinus, and it being possible to excise the fistula and close the intestinal wound without passing beyond the adhesions: Incision. — Same in form as above, but less extensive. Operation. — (i) The operation is conducted as above, except that care is exercised to avoid entering the abdominal cavity, which can be done only when more or less extensive and strong adhesions exist. The sinus is fol- lowed down to its intestinal end by cutting directly through all intervening tissues to the intestinal wall, which is then incised in such a way as to elli] id- eally excise the intestinal end of the fistula — guarding against injury to neigh- boring coils of intestines and viscera. (2) Having excised the sinus without entering the peritoneal cavity, the borders of the wound on a plane with the upper wall of the intestine are inverted and sutured together by inter- rupted chromic gut or silk sutures, applied after the manner of Lembert's 59 930 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. approximating surfaces, which, while not peritoneal, have been left raw from the excision of the sinus. The sinus is closed throughout the rest of its extent by deeply buried chromic gut sutures. III. In other cases : — In cases where large and obstinate spurs exist, or where there has been much loss of intestinal wall — which may be found to be the case after having exposed the parts as in the first category of cases mentioned above, a partial enterectomy may be done, followed by one of the methods of entero-enteros- tomv. Or the necessary calibre of intestine may be gotten by some form of " elbowing, " without excision. Or junction of the involved coil of intestine with a neighboring coil may be secured by lateral anastomosis without partial excision of the intestine, after having closed the wound in the intestine left by excision of the intestinal end of the sinus. Or, where a moderate spur exists, attempts may be made to remove the spur by means of a piece of rubber tubing introduced into the lumen of the gut and held against the spur. Formerly the use of an enterotome, whereby the spur was crushed, was much resorted to. ENTEROPLASTY. Description. — By enteroplasty is generally understood a plastic operation carried out for the purpose of increasing the calibre of the intestinal lumen in the case of a strictured gut — without resection of the bowel. The technic of the operation is exactly similar to that of pyloroplasty — an axial incision is made through the strictured portion of the gut and this incision is then sutured in a transverse direction. For description and illustration of the principle, see Pyloroplasty, page 984, and Fig. 726. Note. — Other methods of increasing the calibre of the narrowed portion of intestine are employed in connection with operations of resection : — Jeannel, after partial enterectomy, cuts the ends of both pieces of intestine obliquely from above downward (the right-hand piece from right to left, and the left- hand piece from left to right) — and then unites their edges by suturing — forming an "elbow," as in the junction of pieces of stove-pipe. Chaput, after performing partial enterectomy, united the ends of the bowels by circular suturing — then made a longitudinal incision through the walls of the united intestines opposite the mesentery and sutured this longitudinal division trans- versely — employing, in the latter part of the operation, the principle of the usual enteroplastic operation. Chaput, by another method, completely divides the bowel obliquely, from above downward and from side to side — ■ forming two oblique ellipses of the same size, but in opposite directions, at the ends of the intestines — followed by union of the intestinal margins. OPERATION FOR INTUSSUSCEPTION. THE JESSETT-BARKER METHOD. Description. — An incision is made through the intussuscipiens over the base of the intussusceptum — and through this incision the intussusceptum is excised, the free ends of the intestine sutured — and the window in the intussus- cipiens closed. Preparation — Position — Landmarks — Incision. — As for an abdominal section performed in the special locality indicated. Operation. — Having brought the site of intussusception into the field of OPERATION FOR INTUSSUSCEPTION. 931 Fig. 681. — The Jessett-Barker Opera- tion for Intussusception: — I. — The in- tussuscipiens incised, exposing the intussuscep- tum. (Redrawn from unplaced source.) Fig. 682. — The Jessett-Barker Opera- tion for Intussusception: — II. — The exci- sion of the intussusceptum. (Redrawn from unplaced source.) Fig. 683. — The Jessett-Barker Opera- tion for Intussusception: — III. — The su- turing of the two walls of the intussusceptum. (Redrawn from unplaced source.) Fig. 684. — The Jessett-Barker Opera- tion for Intussusception: — IV. — The su- turing of the intussusceptum to the intussus- cipiens, and the closure by suture of the win- dow in the intussuscipiens. (Redrawn from unplaced source.) 932 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. operation the intussuscipiens and intussusceptum are sutured together by a continuous or interrupted seromuscular suture at their line of invagination, including the mesentery (Fig. 681). Through the antimesenteric aspect of the intussuscipiens a longitudinal incision, 5 cm. (2 inches) in length, is made into the lumen of the intestine. Through this opening the invaginated portion of the intestine is drawn out (Fig. 682). It is then divided transversely a short distance above the line of invagination. The free edges of the two concentric ends of intestine are now sutured together by means of an overhand continuous suture — which both controls hemorrhage and unites the serosae of the severed ends (Fig. 683). Sometimes it is easier to deliver the intussus- ceptum if the transverse section be made first. The stump of sutured intestinal ends is now dropped back into the lumen of the intussuscipiens — after which the longitudinal incision in the intussuscipiens is closed by a line of continuous interrupted sutures — reinforced, if necessary, by a row of Lembert stitches, interrupted or continuous (Fig. 684). Comment. — (i) As the transverse section of the invaginated portion is being made, the free ends are clamped and held in the field until the sutures are placed. (2) If the invaginated portion of intestine cannot be detached readily, efforts should be made to free it by manipulation or by the passage of a long probe or sound between the walls of the two pieces of intestine. Failing in this, the transverse section may still be made, leaving the invaginated bowel to be passed — or the entire involved intestinal area may be excised. COLOPEXY. BRYANT'S METH< )D. Description. — In this operation some part of the colon is elevated and attached to the abdominal wall by suturing. Colopexy of the transverse colon to the anterior abdominal wall is done in some cases of Enteroptosis. Colopexy of the sigmoid flexure of the colon to the antero-lateral abdominal wall is sometimes done for Prolapsus Recti. This latter operation will be here considered. Preparation — Position. — As for median abdominal section. Landmarks. — Outer part of Poupart's ligament. Incision. — About 7.5 cm. (3 inches) — parallel with and about 2.5 cm. (1 inch) above the outer part of Poupart's ligament — being extended upward if more room be necessary. Operation. — (1) The above incision is carried clown to and through the peritoneum — clamping and tying all bleeding vessels as encountered. (2) After having opened the abdominal cavity, the parietal peritoneum is separated from the edges of the abdominal wound for about 2.5 cm. (1 inch) on each side, the width of separation being somewhat greater above than below — the separated peritoneum thus forming two flaps. (3) The rectum is now pulled well upward, reducing all prolapse — and, at the same time, any adjacent laxity of the colon is pulled down. While the rectum is being drawn firmly upward, the parietal peritoneal flaps are sutured to the serous and muscular coats of the rectum by quilting and continuous silk sutures. (4) About half a dozen silk sutures are then passed in the following order — through all the layers of the edges of the abdominal wound — through the peritoneal flap of that side — then through the serous and muscular coats of the intestine, passing RECTOPEXY. 933 behind the longitudinal band — out through the peritoneal flap of the opposite side — and then through all the tissues of the corresponding edge of the ab- dominal wound. These deep sutures are then drawn tight and tied — thus bringing the longitudinal band and a part of the intestinal wall into contact with the abdominal wall — and approximating the borders of the wound so that they grasp the longitudinal band and part of the wall of the gut — and, at the same time, closing the abdominal wound. RECTOPEXY. VERNEUIL'S METHOD. Description. — Rectopexy, or Proctopexy, consists in the suturing of the prolapsed rectum back to its posterior bed. Preparation. — Bowels emptied; perineum shaved; prolapse replaced. Position. — Patient in lithotomy position; Surgeon seated in front of perineum; Assistant to one side. Landmarks. — Anus; tip of coccyx; ischial tuberosities. Incision. — Two straight incisions of about 2.5 cm. (1 inch) in length are made directly outward from the mid-lateral aspect of the anal orifice (at right angles to the median perineal line). Two other incisions are, later, made from the tip of the coccyx to the outer ends of the two lateral incisions. Operation. — (1) Deepen the lateral incisions through the skin and ex- ternal sphincter. (2) Deepen the posterior incisions through skin, fascia, and external sphincter, raising a triangular flap attached at its base to the tissues of the posterior aspect of the anal orifice — and displace this flap for- ward, and hold it out of the way by retractors or skin sutures. (3) Detach the posterior wall of the rectum, by blunt dissection, from the anus to the tip of the coccyx, and for the width of 5 to 6.5 cm. (2 to 2 J inches). (4) Pass four rather stout silk sutures transversely through the posterior wall of the rectum, going through its outer coats, for as nearly the whole width of the posterior aspect of the rectum as possible, leaving both ends of the sutures free. These sutures are parallel, the highest being opposite the tip of the coccyx, the lowest about 1.5 cm. (f inch) from the anus, and the others equidistant between. (5) Pass a Reverdin needle (or other needle with eye at point) from the skin without to the denuded surface within — the punc- tures being made about 4 cm. (ih inches) from the median line on each side, and above the particular thread to be drawn through — the uppermost sutures coming out through the skin on a level with the sacro-coccygeal articulation, and the lowermost opposite the tip of the coccyx. Each end of each suture is then threaded through the eye of the needle, in turn, and thus drawn through the thickness of the posterior pelvic wall. (6) The free ends of these sutures are then tied together over a firm pad of gauze (to avoid burying into and cutting the skin) — either the. opposite ends of each suture being tied trans- versely together — or the ends of the first and second, and of the third and fourth, tied together in a vertical line on either side. Rather strong traction is made during suturing — to approximate and retain the posterior aspect of the denuded rectum in contact with the anterior aspect of the denuded pelvic wall. (7) Suture the triangular flap back into place— narrowing, at the same time, the anus, by suturing the inner ends of the lateral incisions somewhat further inward than normal — freshening the margins of the anus sufficiently 934 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. for the purpose (the original incisions may be planned with reference to narrowing the anus). Comment. — The same object maybe accomplished by Tuttle's somewhat similar operation; — and also by Peter's operation of opening the abdomen, narrowing the barrel of the rectum by invaginating a vertical strip of its anterior wall by Lemberts, and then stitching the rectum to the abdominal wall; — as well as by other procedures. INTERNAL RECTOTOMY. Description. — Rectotomy, or Proctotomy, consists in the division of the rectum for constriction, obstruction, or the removal of a foreign body. In Internal Rectotomy the rectum is divided from within — and is generally done for stricture of its lower part. Preparation. — Bowels emptied; anal region shaved; and, at time of operation, gauze packing of rectum above, with end of gauze, or attached silk ligature, held ready for withdrawal. Position. — Patient in lithotomy position; Surgeon sits opposite peri- neum; Assistant to one side. Landmarks. — Anus; known course of rectum. Operation. — Insert an anal speculum, which, when opened, will expose the site of stricture — introduce a straight, narrow bistoury through the specu- lum and divide the strictured site in the posterior median line until healthy tissue is reached, cutting backward from above downward — cutting through sphincters if necessary. Any vessels which bleed markedly are tied. The wound is packed — and the gauze withdrawn. Some form of dilator is worn for a time after the operation. EXTERNAL RECTOTOMY. Description. — In the operation of External or Posterior Rectotomy, or Proctotomy, the rectum is opened from without and from behind — generally for the removal of foreign bodies, tumors, or the division of strictures — and usually gives a fuller and higher exposure than Internal Rectotomy. Preparation — Position. — As for Internal Rectotomy. Landmarks. — Anus; tip of coccyx; known course of rectum. Incision. — An external incision is made from the tip of the coccyx (or from somewhat below it, according to circumstances) down the median line to and through the anus. Operation. — (i) The above incision is first made through the superficial parts — and all bleeding controlled. (2) A finger is then placed in the rectum, or a special guide, and upon this the whole thickness of the posterior pelvic wall, from tip of coccyx to anus, is divided. (3) Having completed the division of the rectum and accomplished the special object, the wound is treated as indicated. In cases where the operation has been for the removal of foreign body, the walls of the rectum are to be carefully brought together by suture (chromic gut) — and then the tissues between the rectum and the skin, including the latter, are brought together by sdk sutures. Where the operation has been performed for stricture, the walls of the rectum are, of EXCISION OF THE RECTUM BY THE SACRAL ROUTE. 935 course, not reunited — a light packing is placed between these to prevent their reunion — and then the tissues intervening between the intestinal wall and the skin, including the latter, are sutured with silk — leaving a tem- porarv opening below that no accumulation of discharge within the extra- intestinal tissues may take place. EXCISION OF THE RECTUM IN GENERAL. Rectectomy, or Proctectomy, consists in the excision of the rectum, in whole or in part. It is generally resorted to for malignant disease, in cases where there is little or no involvement of neighboring viscera or lymphatic glands. The operation may be done through the perineum — through the sacrum — through the vagina — by the abdomen — or by the combined abdomi- nal and perineal routes. Proctectomy may be partial or complete. Partial Proctectomv by the perineal route is generally confined to cases in which the malignant growth is within 10 cm. (4 inches) of the anus — and, in women, in which the anterior rectal wall is not involved higher up than 7.5 cm. (3 inches). With some the indication for the perineal route is a growth within 5 cm. (2 inches) of the anus. Moderately high growths are ap- proached by the sacral route. Very high involvements may be approached by the combined perineal and abdominal routes. If uninvolved, the sphincters should be preserved — provided their nerve- supplv, which reaches them from their lateral aspects, can be retained intact — ■ and subsequently the proximal end of the rectum should be attached to the distal end containing the sphincters. The division of the sacrum as high as the lower border of the third sacral foramen may be done without serious injury to, or serious functional impair- ment of, neighboring structures. But division as high as the third sacral foramen has been followed by paralysis of the bladder. A wide removal of circumanal and circumrectal tissues is indicated in all malignant involvement. If involved, the prostate gland, part of the bladder, or the rectovaginal septum, should be removed. EXCISION OF THE RECTUM BY THE SACRAL ROUTE BV PARTIAL EXCISION OF SACRUM — KRASKE'S OPERATION. Description. — Kraske, having incised through the soft tissues vertically downward from the second sacral spine to the anus and bared the coccyx and left lower part of the sacrum, excised the coccyx — entirely divided the sacrosciatic ligaments and completely excised the left lower portion of the sacrum along a line curving from the left margin of the sacrum (on a level with the third sacral foramen) along the lower border of the third sacral foramen to the left inferior corner of the sacrum — and thus exposed and excised the rectum. This operation subsequently became the basis of various modifications. Hochenegg, Bardenheuer, and others have extended the line of excision trans- versely across the entire sacrum on a level with the lower border of the third sacral foramen. Heinecke, Rehn, Rydygier, and others converted the partial excision into an osteoplastic resection of the sacrum and coccyx — by a para- sacral incision just outside of, and parallel with, the left border of the sacrum 936 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. and coccyx, followed by a transverse division of the sacrum just below the third sacral foramen — the flap thus formed being temporarily turned aside to the right, hinging upon its partly broken and partly bent tissues — and being subsequently replaced in position. Preparation. — (i) A preliminary left inguinal colostomy is done by many surgeons some daws in advance — insuring greater cleanliness of the part during operation and the avoidance of fecal soiling for some days after- ward. It is desirable in the majority of cases. Previous purgation and irrigation of the lower bowel for two or three days immediately preceding operation. (2) At the time of operation, high irrigation and swabbing out of the bowel — and often rectal packing placed high up, above the site of disease. Bladder emptied. Perineum shaved. The sphincter ani is para- lyzed by digital distention. Position. — Patient is held in the knee-chest position by means of upright supports at end of table, being suspended from these from just below the hip-joints, while the chest is supported by a cushion. The right latero-prone, or the exaggerated lithotomy, position may also be used. Landmarks. — Anus ; coccyx; sacral spines; posterior superior and inferior iliac spines; known course of rec- tum. Incision. — In the mid-line — from the sec- ond sacral spine to the posterior margin of the anus. (See Fig. 685.) Operation. — (1) The above incision passes directly to the bone over sacrum and coccyx — hemorrhage being controlled by clamp forceps. (2) The overlying soft parts are retracted outward to the left, exposing the left side of the sacrum and coccyx, and from the right side of the coccyx. (3) The gluteus maximus and sacrosciatic ligaments are detached from both sides of the coccyx and from the left side of the sacrum. The coccygei and part of the left piriformis are also detached. If it be intended to remove the anus, the external sphincter and levator ani are also removed. (4) Pass a periosteal elevator beneath the sacrum (in contact with its anterior surface) and detach the soft parts from the hollow of the bone, and the sacra media vessels and venous plexus along with them. (5) The coccyx and as much of the sacrum as considered necessary are now removed. (See Fig. 686.) To accomplish this the soft parts are strongly retracted to the left and the sacrum is divided with chisel and mallet, or by very strong bone-cutting pliers, or Fig. 685. — Excision of Rectum by the Kraske Opera- tion : — Subject in knee-chest position. Skin-incision shown in median heavy line, from second sacral spine to posterior margin of anus. Bone-section shown in dotted line crossing transversely just below third sacral foramina. Position of rectum shown in dotted outline. The above line is the modification of Hochenegg and Bardenheuer. EXCISION OF THE RECTUM BY THE SACRAL ROUTE. 937 by Gigli saw — passing, generally, from the left edge of the sacrum on a level with a point just below the left third posterior sacral foramen, curving inward and downward directly through the left fourth posterior sacral foramen to the left lower corner of the sacrum — thus neither harming the anterior division of the third sacral nerve, nor opening the sacral canal. The hemorrhage, which is chiefly from the lateral sacral, middle sacral, and hemorrhoidal Fit;. 686. —Excision of Rectum by Sacral Route— Kraske Operation :— A, Gluteus maxi- mus ; B, Great sacrosciatic ligament ; C, Lesser sacrosciatic ligament ; D, Pyriformis ; E.Coccygeus; F, Levator ani ; G, External sphincter; H, Sciatic artery; 1. Internal pudic artery; J, Branches of internal pudic artery and pudic nerve; K, Coccyx ; L, Fourth sacral foramen ; M, Gigli saw dividing sacrum just below third sacral foramina. arteries, and anterior and posterior venous plexus, and the bone, is controlled by pressure until the bone is removed — and subsequently by catch-forceps and ligature. (6) Having thus exposed the pelvic cavity, incise the tissues in the middle line down to and through the levatores ani, until the rectum is reached. (7) The external sphincter and anus are generally left, if the 938 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. site of involvement be as much as 2.5 cm. (1 inch) above the former. (8) The rectum is now "shelled out" by blunt dissection. This "shelling out" can be readily carried out behind and on the sides. The size of the rectum may prevent the passage of the finger completely around it — and the attach- ments of the peritoneum and mesorectum will prevent its being drawn down- ward very far. (See Fig. 687.) (9) Having thus isolated the rectum, it should be divided transversely at least 2.5 cm. (1 inch) below the lowest Fig. 687.— Excision of Rectum by Sacral Route (Kraske Operation) — Part of Sacrum and Coccyx Removed and Divided Rectum Turned Down : — Unlettered structures are same as in Fig. 439. A, Section of sacrum below third sacral foramina ; B, Peritoneum; C, Vesiculse semi- nales ; D, Vasa deferentia ; E, Recto-vesical layer of pelvic fascia ; F, Upper end of severed rectum ; G, Lower end of divided rectum retracted downward ; H, Cancerous growth of rectum ; 1,1. Middle sacral artery and branches; J, J, Superior hemorrhoidal arteries; K, Middle hemorrhoidal artery (and same on opposite side;. margin of disease. In order to retain command of the upper end, just prior to dividing the rectum a stout circular ligature may be thrown around it just beneath the involved area — or, simultaneously with the division, sutures may be placed through the cut walls of the upper end. (10) The separation of the rectum is now continued by blunt dissection, guided, in the male, by a sound in the bladder, while separating the rectum from the prostate EXCISION OF THE RECTUM BY THE SACRAL ROUTE. 939 and bladder — and, in the female, by an assistant's finger in the vagina, in separating the rectum from the vagina — controlling hemorrhage by pressure. (11) When the peritoneal reflection upon the anterior aspect of the rectum is reached, if it do not extend too high it may be found possible to protrude this reflection upward with the finger and thus not have to open the peri- toneum. If the growth extend above the reflection, the peritoneum must be opened, and is, accordingly, freely incised. (12) The mesorectum and pre- sacral areolar tissue now alone hold the rectum — and these are separated and loosened upward by blunt dissection, while the bowel is gently drawn downward. (13) Having freed the rectal surfaces for about 2.5 to 5 cm. (1 to 2 inches) above the growth and clamped it at this site, and having packed off the neighboring regions with gauze, it is divided at least 2.5 cm. (1 inch) above the disease — dividing the mesorectum and presacral areolar tissues on the same level. All bleeding is now controlled by clamp forceps and ligature. (14) If the peritoneum have been opened during operation, a small wound of the structure is to be at once sutured, with or without drainage, as indicated — a large rent may be partly sutured and partly packed with gauze, or entirelv packed. (15) Having completed the excision of the dis eased portion of rectum, controlled hemorrhage, and repaired any damage done the peritoneum, the ends of the gut are to be treated according to the circumstances of the case and the special views of the operator. Considerable difference of opinion exists as to the management of the ends of the intestine — some of the views being here summarized: — (A) If the Sphincters and Anus Have Been Retained; — (a) Direct suturing of the divided ends may be done. Kraske sutures the anterior and lateral portions by a double tier of sutures, one through the mucous membrane only, and one through all the coats — while he inverts the posterior portion by a single tier not passing through the mucous membrane, (b) The ends may be united by a Murphy button. (c) Moulouguet carefully removes the mucous membrane of the lower portion of the rectum (avoiding injury to the external sphincter) — and draws through this lower portion the upper end and sutures its borders to the border of the anus, controlled by its sphincter. (B) If the Sphincters and Anus be Sacrificed; — (a) The upper end of the divided rectum is sutured into the upper posterior angle of the wound, (b) Gersuny twists the upper end of the rectum upon its long axis (to give some difficult}- to the fecal passage) if it be long enough, and sutures it into the skin, (c) \\itzel draws the upper end of the rectum through a short incision just above the free border of the gluteus maximus and sutures its edge to the skin (to gain some muscular control). Comment. — (1) The coccyx alone should be first removed — as that may furnish sufficient room. (2) The superior hemorrhoidal vessels (bifurcating from the inferior mesenteric artery in the median line between the layers of the mesorectum) run very near the muscular layer of the intestine, and by cutting in the loose areolar tissue just under the peritoneum these vessels are avoided and the upper rectum easily freed from the wall of the pelvis. The high division of these vessels is apt to be followed by necrosis of the gut. (3) In the male, with empty bladder, the rectovesical peritoneal re- flection is generally about 7.5 cm. (3 inches) above the anus. A full bladder raises the reflection about 2.5 cm. (1 inch). The tip of the coccyx is below the level of this reflection. (4) The peritoneum nearly entirely surrounds the rectum at the level of the third sacral foramen, a distinct mesorectum existing — loose areolar tissue connecting the intestine to the sacrum and coccyx where the peritoneum is absent. (5) A truss and pad are worn 94o OPERATIONS UPON THE AI!I)OMIN< >-I'ELVIC REGION. where a sacral anus is made. (6) Keen performs a preliminary inguinal colostomy, which is permanent — and closes the lower opening entirely. (7) Fig. 687 represents the complete transverse division of the sacrum. EXCISION OF THE RECTUM BY THE SACRAL ROUTE. BY THE REHN-RYDYGIER OSTEOPLASTIC FLAP METHOD. Description. — See the description given under Kraske's excision of the rectum by the sacral route. Preparation — Position — Landmarks. — Same as in Kraske's operation, above given. Incision. — (1) An oblique parasacral incision is first made, beginning opposite the center of the sacrum, passing along just to the outer side of the left border of the sacrum and coccyx to the tip of the coccyx — and thence along the mid-line of the perineum nearly to the anus. (2) A second incision is then car- ried transversely across the sacrum about 4 cm. (1^ inches) above the sacro-coc- cygeal articulation. (See Fig. 688.) Operation. — (1) The ob- lique incision passes down- ward from the posterior supe- rior iliac spine along the outer border of the sacrum and coccyx — the transverse incision passing at once to the sacral bone. All bleed- ing vessels in the lines of in- cision are clamped. (2) Ex- pose and divide the gluteus maximus and the greater and lesser sacrosciatic ligaments of the left side, along the oblique incision. (See Fig. 689.) (3) The transverse incision is further deepened until the irregular depressions and elevations of the posterior aspect of the sacrum are exposed in the bed of the transverse wound. (4) By means of a curved elevator and blunt dissector the soft parts in the hollow of the anterior surface of the sacrum are raised from the bone, clearing the anterior surface of the sacrum below the level of the third sacral foramina. (5) The sacrum is now divided transversely just below the third sacral' foramina by means of chisel or saw — and the osteo-cutaneous flap thus freed is then prized over to the right, hinging along a line corresponding with the right sacro-coccygeal border — and the posterior aspect of the rectum is thus exposed. All hemorrhage is now controlled by clamp and ligature before proceeding. (6) The subsequent steps of the operation are practically the same as in Kraske's operation (q. v.). (7) Where union between the two segments of the rectum can be accomplished at the end of the operation, Fig. 688.— Osteoplastic Resection of Rectum by the Rehn-Rydygier Operation: — Patient in knee-chest position. Rectum shown in outline. Skin-incision in heavy oblique and vertical line. Bone-section in trans- verse dotted line. EXCISION OF THE RECTUM BY THE SACRAL ROUTE. 941 this is secured as described under Kraske's operation — followed by the re- position of the bone-flap in place and the holding of it there by the passage of chromic gut sutures through its periosteal and aponeurotic structures — accompanied by temporary gauze drainage. If union of the ends cannot be accomplished, the upper end may be brought down and anchored as low in the wound as possible, by sutures, the wound cavity packed, and no attempt made to suture the bone-flap in place. Granulation then occurs, with some retraction of the flap, but a useful result generally follows. Or, where the growth cannot be all removed, or a greater gap is left between the segments than foreseen, the bone-flap may be entirely detached and * Fig. 689.— Osteoplastic Resection of the Rectum— Rehn-Rydygier Operation: — Show- ing flap of part of sacrum, coccyx, and overlying soft parts temporarily displaced to right. Unlettered structures are same as in Figs. 686 and 687. discarded (constituting a sacral excision of the lower portion of the bone) and the upper end of the gut anchored in the upper angle of the external wound — which is then closed throughout the balance of its extent, except at the site- where drainage is established. Comment. — The osteoplastic method of exposing the rectum is preferable where it is possible — but if the flap of bone be in the way of the operation itself, or in the way of the subsequent management of the case, it should be removed — and the operation converted into a partial excision. The tem- porary bony resection preserves the posterior support of the levatores ani. 942 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. It probably does not furnish quite as much room as the method by partial excision; the bone-flap may necrose; there is no room for a sacral anus, where this is indicated, except by total or partial removal of the bone-flap. EXCISION OF THE LOWER PART OF THE RECTUM BY THE PERINEAL ROUTE. Description. — The excision of the lower portion of the rectum by the perineal route is usually confined to cases in which the cause of removal is within finger's reach of the anus. Preparation.-— Purgation; irrigation of the lower bowel; rectal packing; bladder emptied; perineum shaved. Position. — Patient in exaggerated lithotomy position, or in Sims' posi- tion. Surgeon standing, or sitting, in front of perineum. Fig- 69c. —Excision of Lower Rectum by Perineal Route :— Line of incision. Landmarks. — Anus; tip of coccyx; and, later, position of bladder, pros- tate, vagina, and rectum. Incision. — Two lateral oval incisions are made — almost, but not quite, meeting in front of the anus — being continued backward around the sides of the anus in the ilio-rectal fossae to meet behind the anus — and prolonged thence in the mid-line to the tip of the coccyx. (See Fig. 690.) Operation. — (1) The incision passes directly into the ilio-rectal fossae — and is followed by blunt dissection (with finger and blunt dissector) of the lower end of the rectum up to the levatores ani — the bleeding being controlled by catch-forceps and gauze-mops upon sponge-holders pressed into the wound. (See Fig. 691.) (2) In the male, guided by the sound in the bladder, the rectum is carefully separated from the bladder, prostate, and urethra, to which it is rather closely adherent. The index-finger of an assistant in the rectum, with thumb toward bladder, aids the surgeon in this separation, EXCISION OF RECTUM BY PERINEAL ROUTE. 943 (3) In the female, an assistant's index in the vagina aids the operator in separating the rectum from that organ. (4) Guard against opening the reflection of peritoneum — and, if opened, suture at once, if small — and pack with gauze, if the opening be large. (5) The levatores ani are now divided — - and the rectum thus freed everywhere but above. All bleeding vessels are clamped or ligated before beginning the freeing of the rectum. (6) During gentle downward traction of the bowel it is further freed by blunt dissection and scissors. Having clamped the bowel above (to retain control and also Fig. 69 1. — Excision of Lower Rectum by Perineal Route : — A, Anus; B, Coccyx; C, Margin of wound, showing transverse perineal vessels anteriorly, and infei ior hemorrhoidal vessels posteriorly; D, External sphincter; E, Levator ani ; F, Rectum being treed by blunt dissector (G) and by traction with ringer (H)— (cancerous growth is shown at roughened portion of rectum). to avoid soiling), it is divided transversely about 2.5 cm. (1 inch) above and below the growth. Where possible, the sphincters and anus should be pre- served. (7) All hemorrhage having been controlled, the question of the management of the ends of the intestine must be decided: — (a) Where the Sphincters and Anus are Left; — The upper end is brought down and sutured to the lower by one of the methods of entero-enterostomy; (b) Where the 944 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Sphincters and Anus are Removed; — The upper end may be displaced back- ward and sutured between the levatores ani in the position of a subcoccvgeal anus — the wound in front being closed by deep and superficial sutures, the deep sutures including the levatores ani so as to form a sphincteric anus. OPERATION FOR THE CURE OF HEMORRHOIDS BY LIGATION AND EXCISION. ALLINGHAM'S METHOD. Description. — Consists in the isolation and freeing of the pile by dis- section, until its true pedicle is reached — around which pedicle a ligature is placed and the pile cut off below it. This form of operation is especially indicated in isolated piles, and particularly those of columnar outline. Preparation. — Purgation; rectal irrigation; circumanal region shaved; dilatation of anus immediately preceding excision. Position. — Patient in lithotomy position at end of table; Surgeon seated opposite perineum; Assistant to surgeon's side. Patient may lie upon side, with knees drawn up. Landmarks. — Anus; hemorrhoidal tumors. Operation. — (i) For the purpose of dilating the anal orifice, both thumbs, lubricated, are inserted into the bowel, knuckle to knuckle — and, grasping the ischial tuberosities on each side with the fingers, the surgeon carefully and slowly separates the thumbs to the desired extent, consuming about two minutes in the process. (2) Having thoroughly dilated the anal orifice, the interior of the lower rectum is examined with the index-finger, and the number, nature, and position of the hemorrhoids determined. (3) Beginning with those upon the lower, posterior aspect (that bleeding may not obscure the operation), each pile is seized with toothed forceps and drawn downward and away from its attachment, putting this attachment upon gentle stretch. (4) While the pile is thus held, a pair of blunt-pointed scissors (straight or curved, as more convenient) is made to dissect the pile up from the sub- cutaneous tissue by limited snips, beginning below at the line of muco- cutaneous junction and proceeding upward in the long axis of the bowel, until a point is reached where the pile is attached by the normal mucous membrane and by its blood-vessels, which now form its pedicle. Up to this stage but few vessels have been encountered and but little bleeding occurs. (5) While the pile is thus held by an assistant, a friction-knot of chromic gut is thrown around the pedicle of the pile and pushed as high up as possible — this friction-knot is drawn tight and a second knot is added. (6) The hemorrhoid is then cut off, with scissors or knife, just far enough below the ligature to insure its retention. This procedure is repeated upon as many piles as are present. (See Fig. 692, A and B.) Comment. — (1) Piles are classed as "External," below the pressure of the external sphincter; — "Internal," above the pressure of the external sphincter; — " Interno-external, " partly above and partly below the grasp of the external sphincter. (2) The vessels which supply hemorrhoids come from above and run just under the mucous membrane, entering the upper portion of the pile — which facts have a direct bearing upon the manner of partially separating hemorrhoids preparatory to ligation or excision. (3) Where closelv placed piles form more or less of a circle around the anus, they are separated by incisions made through the mucous membrane, and then each pile is ligated separately, as above described. (4) It is par- OPERATION FOR HEMORRHOIDS BY LIGATION. 945 ticularlv important to include no part of the skin within the grasp of the ligature, as much and prolonged pain, from the inclusion of nerve filaments, may follow. Such inclusion is impossible if the ligature be not applied until the pile is freed up to its natural pedicle (5) It is well to suture up with fine catgut the furrows in the submucous tissue left by the snips of the scissors in dissecting the hemorrhoid from its bed. (See Fig. 692, C.) Fig. 692.— Operation for Hemorrhoids by Ligation and Excision :— A, Hemorrhoid ex- cised from its bed and ligature thrown around its pedicle ; B, Tract left to granulate after the ordinary operation of removal by ligation and excision; C, Former tract, left after ligation and excision, sutured so as to approximate edges and promote primary union. OPERATION FOR THE CURE OF HEMORRHOIDS BY EXCISION. WHITEHEAD'S OPERATION. Description. — Consists in the excision of the pile-bearing segment of mucous membrane, together with its piles — followed by the immediate suturing of the divided mucous membrane above to the skin below. This form of operation is especially indicated in those cases of hemorrhoids where a circle of large and irregular piles more or less completely surrounds the anal orifice. Preparation — Position— Landmarks. — As in the operation by ligation above described. Operation. — (1) Having dilated the anal orifice, as described under the ligature operation, the pile-bearing segment of mucous membrane is seized with forceps and put upon gentle stretch. (See Fig. 693.) (2) While thus held, and beginning at the lowest portion of the circle and proceeding, pari passu, up the two sides, the mucous membrane is divided with scissors exactly along the muco-cutaneous line — passing entirely around the circumference of 60 946 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. the anal opening and accurately following in and out along every irregularity of the skin. (3) Working by rapid dissection along the submucous plane with the closed end of blunt scissors, the external sphincter is first exposed and then the beginning of the internal sphincter — and the mucous mem- brane, with the attached hemorrhoids, separated from their bed of sub- mucous tissue, are drawn down below the skin margin — all restraining points of connective tissue being divided. (4) The mucous membrane just above the hemorrhoids is now cut transversely, a small extent at a time — and the limited part of the mucous membrane thus freed above is immediately stitched witli silk to the free border of skin below, which has been divided along the muco-cutaneous line of the primary incision. Following this, another area of mucous membrane is cut free above — and at once sutured Fig. 693— Whitehead's Operation for Hemorrhoids: — A, Pile-bearing segment of mucous membrane being dissected away with scissors, while held upon the stretch with forceps ; B, Sutures approximating mucous membrane above, to skin below. to the skin below — and thus on around the circle — until the circumference of pile-bearing mucous membrane is removed. Comment. — All bleeding vessels are controlled, by Whitehead, by torsion during these steps. The chief hemorrhage tends to come from the vessels divided in the transverse division of the mucous membrane and pedicle of the pile above — and this bleeding is largely controlled by the immediate suturing of the free border of the mucous membrane to the free margin of the skin. There is no reason why fine catgut ligatures should not be used where considered necessarv. OPERATION FOR THE CURE OF HEMORRHOIDS BY THE CLAMP AND ACTUAL CAUTERY. Description. — Consists in the cauterizing, at red heat, of the hemor- rhoidal growth — while held in the grasp of special clamp-forceps. This OPERATION FOR FISTULA-IN-ANO BY INCISION. 947 form of operation may be applied to piles in general — but is more especially indicated in simple venous piles of medium size. Preparation — Position — Landmarks. — As in the ligature method. Operation. — (1) Having dilated the anus, each pile in turn, or a cluster of piles, is seized with toothed forceps and drawn downward and away from its attachment. (2) Divide the muco-cutaneous border, if there be one, with blunt-pointed scissors or knife (that nerve-filaments may not be included in the grasp of the clamp). (3) Apply the clamp, with the pile still under gentle traction, to the base of the tumor, and in the axis of the gut — the clamp resting in the cut groove at the muco-cutaneous border, if the pile be one having a cutaneous part. The blades are then screwed together sufficiently firmly to thoroughly compress the parts. (4) With a pair of curved scissors, cut away the excess of hemorrhoid which projects above the clamp. Then, with a Paquelin 01 other cautery at red heat, slowly and thoroughly cauterize the stump of the pile. As the clamp is loosened, follow down the escaping pile-stump with the point of the cautery — seeing that all hemorrhage is controlled. If necessary to make the hemostasis complete, the stump may be again clamped and again cauterized. This process is repeated until all the piles or clusters have been cauterized. Comment. — Where the piles are in the form of a more or less complete circle surrounding the anus, they should be divided into segments or groups by incision of the mucous membrane prior to clamping and cauterizing. Avoid burning the skin — or detaching the eschars, thereby favoring hemor- rhage. OPERATION FOR THE CURE OF FISTULA-IN-ANO BY INCISION. Description. — Consists in the laying open of the fistulous tract upon a grooved director — followed by the curettage of the sinus-walls — and light gauze packing of the raw bed to promote healing from the bottom and ob- literation of the fistula, — or excision of tract with suture of its bed. Preparation. — Purgation; rectal irrigation; shaving of circumanal re- gion; dilatation of the sphincter just before operation, in the more compli- cated cases. Position. — Patient in the lithotomy position, with nates over the end of the table; surgeon sitting opposite the perineum. Landmarks. — Anus; rectum; course of fistula and position of openings determined in advance, if possible. Operation. — (1) A grooved director is passed through the sinus, from its skin opening — made to traverse its length and emerge through its internal opening within the bowel — and the end of the director is then caused to project through the anus by directing its tip with the left index-finger within the rectum, while its handle is depressed with the right hand. The external and internal openings of the fistula are then in plain view — with the grooved director passing through its entire length. (See Fig. 698, A.) (2) Upon the grooved director a narrow, pointed knife is passed (or a probe-pointed bis- toury may be used) with its cutting-edge directed outward — thus incising the fistula throughout its entire course — freeing the grooved director and allowing the parts to recede into their normal positions. (3) The lips of the wound and of the sinus are then separated by the operator's left thumb and index — and, while thus exposed, the entire extent of the fistula should be scraped with a curette, so as to remove its old wall — and then Lightly packed with gauze and allowed to heal from the bottom. A T-bandage 94 8 OPERATIONS I TON THE ABDOMINO-PELVIC REGION. keeps the dressing in place. The bowels are usually kept constipated for a few days. Comment. — (i) Fistuke-in-ano are generally one of three types; — "Com- plete" — "Incomplete Internal" — "Incomplete External." In addition, fis- tulas may have several openings; — and they may have irregular forms, as, for example, the "horseshoe" type. (See Figs. 694 to 697.) (2) If the grooved director does not pass readily, a probe may first find the way — and the director passed along this — and the probe then withdrawn. (3) If the grooved director, or probe, cannot be made to find an internal communication with the bowel, but nevertheless comes very near the mucous membrane, it may be forced the remaining distance, provided this distance be short. (4) If the end of the director cannot be brought out through the anus, a narrow, probe-pointed bistoury may be passed along it and the director Figs. 694—697. — Forms of Fistul^e-in-ano : — A, Rectum in vertical section; a, Incomplete external fistula ; 6, Incomplete internal fistula ; c, Complete fistula ; d. Irregular complete fistula. B, Surface view of fistulous tracts, showing various irregular forms of fistula; and diverticula — their external openings being marked by a star. withdrawn — and then the end of the probe-pointed bistoury is pressed against the surgeon's left index-finger (or a special piece of wood) introduced within the rectum — and finger and knife simultaneously withdrawn — the knife cutting the intervening soft parts through in its withdrawal. Or one blade of a pair of scissors may be passed along the director and the sinus thus laid open. (5) In incomplete internal fistula 1 , the internal opening is found through a speculum — a bent probe passed along the sinus — and an external opening made where thus indicated — after which the operation is completed as in a complete fistula. (6) In incomplete external fistula, if the inner end be very near the mucous membrane, a director is protruded through the sinus into the bowel, forcing its way through the thin barrier — after which the operation is completed as in the complete fistula. If, on the other hand, the inner OPERATION FOR FISTULA- IN- ANO BY INCISION. 949 opening be not connected with or near the bowel, the entire tract must be laid open from without. (7) If the fistula extend high up along the bowel, judgment must be exercised as to what extent cutting is necessary, and to what extent dilatation and scraping will suffice. (8) In "horseshoe" fistuke (an external opening on each side of the anus leading to a single internal opening, generally upon the posterior rectal wall) the bowel function is less Fig. 698.— Operation for Cure of Fistula-in-ano by Incision and Excision: — A, Bistoury in act of dividing fistula upon grooved director; B, Fistulous tract being excised by curved scissors, while steadied with forceps ; C, Suturing of bed of sinus alter its excision ; D, Ligature attached to gauze tampon in rectum, t<> control contents. apt to be interfered with if the sphincter be cut on one side only (and at right angles to the anal orifice) and the opposite part of the fistula be dilated, scraped, and drained from the first side. (9) Search should always be made for secondary fistula? running off from the main one, and these likewise laid open and curetted — or dilated and scraped. (10) The internal sphincter should not be divided if it can be helped. If it be necessary to incise the 95© OPERATIONS UPON THE ABDOMINO-PELVIC REGION. internal sphincter, the division should be at right angles to its fibers at the site of section (that repair may be more complete, and subsequent functioning). And it is preferable not to divide the internal sphincter in more than one place at a time (for the same reasons), (n) Whatever hemorrhage occurs, which is generally slight, is ordinarily controlled by gauze packing — but gut- ligaturing may be used where necessary. (12) In appropriate cases the entire fistulous tract may be dissected out — and the raw edges thus left be brought together by superficial and deep chromic gut sutures — thus at once obliterating the site of sinus and inviting primary union. This method is preferable to simple incision wherever applicable. (See Fig. 698, B and C.) VI. THE STOMACH. SURGICAL ANATOMY. Description. — Lies in epigastric and left hypochondriac regions — being about five-sixths to left and one-sixth to right of median line; — lying under the liver and diaphragm, — above the jejunum, ileum, and transverse colon (also upon the transverse mesocolon, which intervenes between it and pan- creas, abdominal vessels and solar plexus), — and between gall-bladder on right and spleen on left. Relations. — Anteriorly and superiorly: diaphragm; thoracic wall (an- terior portions seventh, eighth, and ninth ribs); left and quadrate lobes of liver; anterior abdominal wall; lesser omentum. Posteriorly and infe- riorly : diaphragm; crura of diaphragm; aorta and inferior vena cava; first lumbar vertebra; cceliac axis; lesser peritoneal sac; splenic flexure of colon ; transverse colon ; transverse mesocolon (superior layer) ; spleen (gastric surface); left kidney and suprarenal capsule; pancreas; splenic vessels; duo- denum (fourth, or ascending portion) ; solar plexus. Right end : transverse colon; inferior surface of liver. Left end : spleen; diaphragm. Position of Cardiac End (Fundus). — Reaches up to the left sixth chon- dro-sternal articulation, or fifth rib in mammary line, and to cupola of dia- phragm; — slightly above and behind the heart apex; — and 3 to 5 cm. (ij to 2 inches) higher than the cardiac orifice of the stomach. Position of Cardiac Orifice. — Opposite left seventh chondro-sternal articulation, about 2.5 cm. (1 inch) from sternum; — also on level with ninth dorsal spine (left side of eleventh dorsal vertebra). Lies from 2 to 3 cm. (f to 1 j inches) below the esophageal opening, and about 7.5 cm. (3 inches) from the left extremity of the stomach, — and n cm. (4 J inches) from the anterior abdominal wall. Position of Pylorus. — On level with bony ends of seventh ribs (which are 5 to 7.5 cm., or 2 to 3 inches, below the sterno-xiphoid joint), lying to right of median line and nearer the surface than the cardiac end; — also on level with twelfth dorsal spine (upper border of first lumbar vertebra). Fixation Points and Ligaments of Stomach. — Bound to diaphragm by esophagus; — bound to vertebral column by duodenum ; — ligamentum phrenico- gastricum connects cardia to diaphragm; — gastro-hepatic omentum (lesser omentum) connects lesser curvature to liver; — ligamentum hepato-duodenale connects pylorus and duodenum to liver; — gastro-splenic omentum binds greater end of stomach to spleen; — great omentum binds the stomach only when itself is bound. SURGICAL CONSIDERATIONS IN STOMACH OPERATIONS. 951 Peritoneal Coverings. — Everywhere — except along the upper and lower curvatures, and upon the triangular areas at either end. Arteries. — Gastric; pyloric and right gastro-epiploic branches of hepatic; left gastro-epiploic and vasa brevia of splenic. Veins. — Coronary and pyloric, emptying into portal vein; right gastro- epiploic, emptying into superior mesenteric; left gastro-epiploic, emptying into splenic. Nerves. — Right vagus (posterior surface) ; left vagus (anterior surface) ; solar plexus of sympathetic system. Lymphatic Glands.— Along greater and lesser curvatures — and at pyloric and cardiac ends. SURFACE FORM AND LANDMARKS. Stomach when empty — lies far back in the abdominal cavity, beneath left lobe of liver and in front of pancreas. In moderate distention — Cardiac end lies beneath left seventh chondro- sternal articulation, about 2.5 cm. (1 inch) beyond the sternum. Pyloric end lies opposite a point near end of eighth right chondro-costal articulation. Borders (curvatures) of stomach are represented approximately by curves of the characteristic contour between the points just given — the greater curvature reaching at first to the left, then downward to the infracostal line. The lesser curvature crosses the vertebral column on a level with the first lumbar vertebra. The greater curvature crosses the epigastrium on a line connecting the ninth and tenth costal cartilages — which is about two finger- breadths above the umbilicus. Gastric fossa — a triangular area of about 40 square centimeters (15J inches) of the anterior wall of the stomach where it lies in direct contact with the abdominal wall — bounded, below, by the transverse colon; above and to left, by seventh, eighth, and ninth costal cartilages; and above and to right, by the anterior border of the liver. GENERAL SURGICAL CONSIDERATIONS IN OPERATIONS UPON THE STOMACH. Stomach may be recognized by its relation to the inferior surface of the liver — by its continuity with the anterior layer of the gastro-hepatic omentum — L7 its thick and stiff wall, as detenrJned by pinching it up between the fingers — by the direction of its vessels — and by its pinkish-w?.- ;e color and absolute opacity. The stomach and transverse colon have been mistaken for each other. The transverse colon should be displaced downward and the liver upward — revealing the stomach between them. If not otherwise recognizable, follow back the under surface of the liver to the portal fissure, with the index- finger — thence downward along the gastro-hepatic omentum to the stomach. Anterior gastric wall lies in the greater peritoneal cavity — and its posterior wall in the lesser cavity. Superior wall of the transverse colon lies in the lesser peritoneal cavity — ■ and its inferior wall in the greater cavity. Mesentery descends downward and forward from under the back part of the transverse mesocolon. The omentum major descends from the greater curvature of the stomach and inferior aspect of the transverse colon — and mav contain a cavity and be continuous with the omentum minor above the transverse colon — but its component layers are more generally united. The omentum can be more conveniently displaced upward and to the left. 952 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Note. — Other general surgical considerations will be mentioned under special classes of gastric operations. INSTRUMENTS. Scalpels; straight and blunt-pointed bistouries; scissors, curved and straight; dissecting and toothed forceps; tenacula; artery-clamp forceps; various retractors; large gauze pads; broad spatula?; intestinal clamps; stomach clamps; Murphy button; sponge-holders; volsella; stomach-tube; rubber tubing (for gastrostomies); needles, curved and straight; needle-holders; sutures, silk and gut; ligatures, silk and gut; ligature-carrier, wound-hooks. INTRODUCTION OF STOMACH-TUBE. Description. — The passage of a hollow tube down the esophagus and into the stomach — for the purpose of removing fluid from, or injecting fluid into, the stomach. Position. — Patient sits upright in chair or in bed — head thrown backward (preferably steadied by an assistant) — mouth gagged (preferably, but not necessarily) — napkin placed over tongue to enable it to be more easily grasped; — Surgeon stands in front. Operation. — The surgeon depresses the base of the tongue with the left index-finger, and, at the same time, draws it forward — this finger thus also guarding the larynx. The tube, previously warmed and lubricated, and held in the fingers of the right hand, is guided along until it impinges upon the posterior wall of the pharynx, when it is directed downward. The esopha- gus once entered, the tube is gently pressed further downward, aided by the act of swallowing, until it has entered the stomach. Comment. — In the average adult, the distance from the upper incisor teeth to the superior end of the esophagus is given as 14 cm. (5J inches); — from the same point to the arch of the aorta, as 23 cm. (9 inches) ; — and from the same point to the diaphragmatic opening, as 37 cm. (14 J inches). Pouches and diverticula of the esophagus are to be avoided. GASTROTOMY BY MEDIAN INCISION. Description. — Consists in the temporary opening of the stomach by incision, followed by its closure at the same operation. Generally resorted to for removal of foreign bodies, for exploration, or for treatment of surgical conditions of the stomach, pylorus, or esophagus (such as gastric ulcer, dilatation of the esophageal or pyloric orifice, dilatation of the esophagus, etc.). The opening may be made in the median line, or below and parallel with the left costal arch. As far as possible, transverse division of muscles and injury to nerves should be avoided. Preparation. — Stomach washed out. Position. — Patient supine; Surgeon to patient's right, cutting from above downward; Assistant opposite. Landmarks. — Linea alba; xiphoid cartilage; umbilicus. Incision. — In the median line — its center being about opposite the space between the eighth and ninth costal cartilages — and extending to or toward the tip of the xiphoid cartilage above, and to or toward the umbilicus below, as far as the circumstances of the case require — generally being from 5 to 10 cm. (2 to 4 inches) long. (Fig. 699, A.) GASTROSTOMY. 953 Operation. — (i) The steps of the operation, up to entering the peri- toneal cavity, are exactly similar to those for median abdominal section (see page 631). (2) The edges of the abdominal wound are now well retracted and the stomach sought — the steps for its recognition being given under Gen- eral Surgical Considerations. While searching for the stomach, which is often not easily located, temporary silk sutures, or traction-ligatures, may be Fig. 699. — Incisions for Exposing Stomach, Liver, Gall-bladder, and Spleen: — A, Median, for stomach, liver, or spleen; B, Oblique subcostal, for stomach; C, Vertical over outer third of left rectus, for stomach; D, Vertical subcostal in left linea semilunaris, for spleen; E, Oblique subcostal, for spleen; F, Oblique subcostal, for liver and gall-bladder; G, Vertical subcostal in right linea semilunaris, for liver and gall-bladder. (Diagram modified from Deaver.) placed through the entire thickness of each abdominal lip — partly to serve as retractors, and partly to prevent the separation of the peritoneum from the abdominal wall. (3) Having located the stomach, that portion of its anterior wall into which the incision is to be made must be isolated and drawn out of the wound by means of the fingers or special traction-forceps, the general peritoneal cavity being packed off with gauze. The site of the opening into the stomach will depend largely upon the site of the foreign body, or upon the special object of the operation. (4) An assistant grasps the anterior stomach-wall toward either side of the retracted abdominal wound, between his thumbs and fingers, steadying and spreading out that surface — or temporary silk traction-sutures may be passed, with curved 954 OPERATIONS UPON THE ABDOMI NO-PELVIC REGION. needle, into the stomach-wall, without entering its cavity — thus exposing an area of about 5 to 7.5 cm. (2 to 3 inches) of the anterior stomach-wall. (5) This area having been put upon the stretch, an opening of about 3.7 to 5 cm. (i| to 2 inches) is made in the vertical axis of the stomach, parallel with the blood-vessels — or it may be made parallel with the long axis, avoiding large vessels. This opening may be made by a quick, controlled stab of a narrow, sharp bistoury, penetrating all the coats, and then enlarging with blunt-pointed bistoury — or it can be more deliberately made by a pair of scissors, picking up a fold of stomach-wall and cutting through at right angles to the fold. (6) Two temporary traction-sutures are at once placed in the opposite lips of the stomach wound, to hold them in control, and to enable the interior of the stomach to be exposed by retraction of its walls. The stomach opening may be enlarged if necessary. Clamp and twist all bleeding vessels, carefully isolating and ligating with gut any requiring ligature. If indicated, the stomach may be washed out, thoroughly protecting the abdom- inal cavity from soiling. (7) The object of the operation is now accom- plished. The stomach-wall is then sutured in the manner described under Gastrorrhaphy, page 955, — with a tier of sutures through the mucous coat, and an overlying tier of Lemberts through the outer coats — using, preferably, fine chromic gut. The stomach is then dropped back into place and the abdomen closed in the usual fashion. Comment. — Where the cardiac end of the stomach is the special site sought, it is more conveniently reached by an oblique subcostal incision (q. v.). The above incision is the best for the pyloric end, and for all other portions of the stomach except the cardiac end — and for general exploration and most foreign bodies. GASTROTOMY BY OBLIQUE SUBCOSTAL INCISION. Description. — The stomach is opened by an incision parallel with and below the left costal arch — which more conveniently exposes the cardiac end of the stomach and the cardiac orifice of the esophagus. Preparation — Position. — As for Median Gastrotomy. Landmarks. — Xiphoid cartilage; left costal arch. Incision. — Begins near the tip of the xiphoid cartilage and extends thence downward and outward, parallel with and about 2,5 to 3,7 cm. (1 to 1 J inches) to the inner side of the left costal arch, ending about opposite the anterior end of the ninth rib, — generally extending for a distance of 5 to 7.5 cm. (2 to 3 inches), varying with the thickness of the abdominal wall and other circumstances. (Fig. 699, B.) Operation. — (1) Incise through skin and fascia, clamping all bleeding vessels. The incision will pass through the fibers of the external oblique at about a right angle to its fibers, — will pass between the fibers of the internal oblique, — and will divide those of the transversalis transversely to their course, — but will pass more or less parallel with the seventh and eighth nerves, which, if possible, should be recognized and drawn aside. (2) The peri- toneum is opened in the line of the original incision — the stomach is recog- nized — isolated — and drawn into the wound, the general peritoneal cavity being well oacked off — and its anterior wall is opened in the same general way as described in Median Gastrotomy, and in the special site selected. (3) The object of the operation having been accomplished, the stomach-wall and the abdominal wound are closed in the manner just described. GASTRORRHAPHY. 955 Comment. — (i) The above operation is very similar to that of Gastros- tomy by the same incision. (2) Large, irregular, impacted bodies are some- times removed by incisions made directly over them and giving access by the nearest route. GASTRORRHAPHY. Description. — Suturing of the stomach-wall. Generally resorted to for wounds, closure after operations, ulcers, etc. (Sometimes gastrorrhaphy is unadvisedly used synonymously with gastroplication.) Preparation — Position — Landmarks — Incision. — As for gastrotomy bv median incision. Operation. — (1) The peritoneal cavity having been opened, hemorrhage controlled, and the wound retracted, the stomach is exposed and brought Fig. 700.— Gastrorrhaphy : — A, Line of overhand continuous suturing through all coats; B, Inter- rupted Lemhert sutures through outer coats. forward. (2) The area being packed off with gauze, the site of the operation is conveniently held by an assistant. (3) The mucous membrane is first sutured with continuous sutures of fine silk or gut — by means of a curved needle held in a holder in the right hand, while picking up the mucous mem- brane with forceps in the left. (4) A second line of interrupted Lemberl sutures of fine chromic gut is now applied, passing through the serous and muscular coats of both lips of the wound, and thus bringing serous surfaces into contact. (5) The stomach is then returned to its place — and the abdo- men sutured as usual. Comment. — (1) Chromic gut may be used throughout. (2) The first 956 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. tier of sutures may consist of an overhand stitching through the entire thick- ness of all the coats, applied continuously — followed by interrupted Lembert sutures passing through the serous and muscular coats and burying in the first tier. (Fig. 700.) (3) Sometimes three tiers are applied — a continuous stitch through the mucous coat — an interrupted or continuous through the muscular — and an interrupted through the serous. (4) In cases of suturing for gastric ulcer — (a) the edges (in simple cases) are merely in- vaginated by sutures, first of the mucous membrane, then of the serous and muscular coats; — (b) Or the ulcer may be excised (in hard, thick walls, or in large ulcers) elliptically, the edges of the ellipse being united by the two tiers just described. (5) All lines of gastric suturing may be rein- forced bv omental grafts sutured over the suture-line. GASTROSTOMY IN GENERAL. Description. — Bv gastrostomy is meant the establishment of a more or less permanent fistulous opening in some part of the anterior wall of the stomach, for the purpose of alimentation or surgical treatment — the stomach generallv being attached by suture to the anterior abdominal wall just pre- ceding or following the incision of its wall. The operation of Gastrostomy may be done in one or in two stages. Where haste is a consideration, the opening must be made into the stomach as soon as the latter is attached to the abdominal wall. Where haste is unnecessary, the stomach is first attached to the opening in the anterior abdominal wall — from three to five days given for union to take place, shutting off the peritoneal cavity — and then the stomach is opened. In such cases as those in which the operation is done for inoperable cancer, the gastrostomy is meant to be permanent. Where the operation is done for temporary cause, the fistula is expected to subse- quentlv heal of its own accord (which is generally the case), or a special opera- tion is done later for its closure. Preparation of Patient. — The stomach is washed out; the site of opera- tion is shaved; the bowels are emptied. Position during Operation. — Supine, at the side of table, with abdominal parietes relaxed by slight elevation of the shoulders and slight flexion of the hips; Surgeon to right in operating in median line, and to left in the sub- costal operation; Assistant opposite. Division of Abdominal Parietes. — Muscles should be divided in their cleavage line, in so far as this is possible — and the abdominal nerves should be spared, as far as practicable. A disadvantage of all oblique incisions parallel with and just below the left costal arch is the difficulty of making an intramuscular separation of the fibers. Considerable differences of statement exist among the writings of surgeons as to the placing of the skin incision, and as to the manner of dividing, dealing with, and suturing the subjacent structures in the descriptions of even the same operation of Gastrostomy. Form of Artificial Canal. — As to regurgitation of stomach contents, the longer, more indirect, and more valvular the canal between the stomach and abdominal openings, the greater the control over the gastric contents. Immediatelv after operation, rubber tubes for feeding are passed down the artificial fistula — but after the first few days these tubes are introduced only at times of feeding — while in some cases the tubes must be constantly worn, only being removed for cleansing. SSABANAJEW-FRANCK'S GASTROSTOMY. 957 Comparison of Methods. — Ssabanajew-Franck's method, performed through the separated fibers of the rectus, is probably the best for a permanent fistula, especially in a lax stomach. Kader's method is probably the best for small or adherent stomachs. MarwedeFs method is probably the best for the rapidity of healing of the fistula. And Howse's method is probably the most quickly done. GASTROSTOMY BY SSABANAJEW-FRANCK'S METHOD. Description. — A cone of stomach is drawn through the separated left rectus muscle — carried beneath a bridge-work of skin — and its apex made to open upon the cutaneous surface just above the left costal arch. The stomach is exposed through an oblique skin incision approximately parallel with the left costal arch — with a vertical separation of the fibers of the outer part of the left rectus muscle — which, at the end of the operation, are sutured about the base of the cone. Preparation — Position. — See General Surgical Considerations. Landmarks. — Median line; linea semilunaris; left costal arch. Incisions. — Primary incision — oblique, about 6 to 8 cm. (2^ to 3 inches) in length, is made over the outer third of the left rectus muscle, beginning near the median line and 'passing downward and outward somewhat more vertically than transversely, though approximately parallel with and about 2.5 to 4 cm. (1 to ih inches) from the left costal arch. Secondary incision (made later in the operation) — about 2 cm. (f inch) in length, is made through the skin and fascia about 2.5 cm. (1 inch) above the costal cartilages and approximately parallel with the original incision. Operation. — (1) Incise skin and fascia in the above line — clamping bleeding vessels — and retracting the lips of the wound. (2) Expose the rectus muscle — divide the anterior layer of the rectal sheath — separate the fibers of the outer part of the rectus muscle vertically by blunt dissection in their cleavage line — divide the posterior layer of the sheath, — and divide the transversalis fascia, subperitoneal areolar tissue, and peritoneum — pre- serving, throughout, the integrity of the muscles and nerves as much as possi- ble, and retracting the structures as divided. (Figs. 701 and 702.) (3) Draw a long cone of the anterior wall of the stomach through the abdominal wound, by means of a silk traction-ligature passing through the serous and muscular coats — the apex of the cone being represented by a part of the stomach-wall nearer the greater than the lesser curvature, and nearer the cardiac than the pyloric end — calculating that sufficient length of cone be drawn out to pass, without tension, under a bridge-work of skin about 5 cm. (2 inches) wide. (4) The serous coat of the stomach forming the base of the cone, is now sutured to the peritoneal and fascial edges of the wound by four gut sutures. The serous and muscular coats of the stomach are then attached throughout to the posterior layer of the rectal sheath by interrupted or continuous gut sutures (preferably chromic), avoiding the danger of constriction. (5) The secondary incision is now made through the skin and fascia in the site indi- cated (see Incisions) — passing only into the connective tissue plane. (6) By blunt dissection from the larger to the smaller wound, the two are con- nected and the intervening bridge-work of skin thus undermined along the fascial plane. (7) A pair of forceps is passed through the smaller opening into the larger — grasps the silk traction ligature and draws the cone of the 958 OPERATIONS UPON THE AI!I)OMIX()-PKLVIC REGION. stomach into the smaller, upper wound, over the edge of the lower costal cartilages — where it is held in place by four silk sutures. These four sutures are passed through all the coats of the stomach, on the one side, and through the skin and fascia, on the other — if the apex of the cone is to be opened at once. But if the opening is to be deferred, the sutures pass through only the serous and muscular coats of the stomach. The small incision is now sutured at either end, leaving a sufficient opening in the center for the passage of the cone. (8) The separated edges of the rectus and its sheath are now sutured with interrupted chromic gut, from either end toward the center, leaving a sufficient opening to guard against dangerous constriction of the base of the cone, while, at the same time, approaching the base nearly enough to form a muscular circle about it. (9) The skin wound is then closed throughout with subcuticular silkworm-gut sutures — or other form of suturing. Figs. 701 and 702.— Gastrostomy, Ssabanajew-Franck's Method : — I. Cone of stomach drawn out of abdominal wound, over costal arch, and through opening in skin : — A, Stomach-cone ; B, Pos- terior layer of rectal sheath, together with subserous and transversalis fasciae and peritoneum sutured to serous and muscular coats of stomach around base of cone; C, Sutures carried through anterior rectal sheath and rectus ready to approximate rectus muscle around cone of stomach. II. Com- pletion of wound-suturing : — D, Sutures through rectus and anterior rectal sheath tightened, so as to embrace stomach-cone ; E, Sutures through skin and fascia ; F, Apex of cone incised and sutured into skin. (10) The apex of the cone is incised at once, in cases of emergency — otherwise the opening is deferred for two or three days. Comment. — (1) In the original Ssabanajew-Franck operation, the inci- sion was carried more obliquely and more nearly parallel with the costal arches — and with less regard for the preservation of muscles and nerves by intramuscular separation. (2) Surgeons differ as to the direction of incising the posterior layer of the rectal sheath and the subjacent structures. (3) This operation requires a very lax stomach, capable of furnishing a rather long cone. The resulting fistula is more apt to be difficult to close than is the case in some of the other methods of Gastrostomy. (4) The efficiency of the operation depends upon the valve-like nature of the opening over the edge of the costal cartilages — the length of the cone — the muscular action WITZEL'S GASTROSTOMY. 959 of the rectus — the double change of direction of the gastric fistula (at first passing through the rectus, and then coming out at the skin wound) — and upon the obliquity of the fistulous canal. (5) The deferring of making the opening into the stomach until all the cone-burying sutures are placed and tied, prevents regurgitation and soiling of the wound in cases in which the stomach must be opened at once. Other Gastrostomies Resembling Ssabanajew-Franck's Method in General Principle. — Albert's Gastrostomy. — Similar in all important essentials to Ssabana- jew-Franck's operation, with the following exceptions; — (1) The primary incision begins 2.5 cm. (1 inch) below the margin of the ribs and passes almost vertically downward over the outer part of the rectus muscle (tending to be more vertical than oblique as in Ssabanajew-Franck's). (2) The sec- ondary incision is made more directly over (than to one side of) the primary incision, and is placed somewhat nearer the costal margin. (3) The stom- ach is bent more nearly directly upward — rather than upward and outward. Hahn's Modification of Ssabanajew-Franck's Gastrostomy. — Re- sembles, in general principle, Ssabanajew-Franck's method — the chief differ- ence being that the cone of stomach is brought directly up through the eighth intercostal space. (1) The primary incision (Fenger's incision) is about 7.5 cm. (3 inches) long — placed to the left of the left rectus muscle — 2.5 cm. (1 inch) from, and parallel with, the left costal arch. The secondary incision is made later — at the anterior end of the eighth left intercostal space, parallel with the ribs — and about 2.5 cm. (1 inch) long. (2) Incise skin and fascia in line of primary incision — incise external oblique at right angle to fibers — separate internal oblique in cleavage line — divide transversalis transversely to cleavage line — and transversalis fascia, subserous areolar tissue, and peritoneum in same line — draw out long cone of stomach, as in Ssabanajew- Franck's operation — suture serous coat of stomach to parietal peritoneum and fascial edges of abdominal wound — make secondary incision in given line — closed, pointed forceps are passed through the anterior end of the left eighth intercostal space and made to work their way through the intervening tissues, hugging the posterior aspect of the costal cartilages and guided by the finger in the abdominal wound — the silk traction-suture is grasped by the forceps and the cone of stomach drawn through the eighth intercostal space — the operation being completed as in the regular Ssabanajew-Franck's method. The danger of injuring the pleural cavity and the costal cartilages, together with the fact of there being no special advantage over the regular operation, are to be considered in undertaking this modification. GASTROSTOMY BY WITZEL'S METHOD. Description. — The stomach is approached by an oblique incision below the left costal arch, passing through skin and fascia — with vertical separation of the anterior rectal sheath and fibers in their cleavage line — division of the posterior layer of the rectal sheath — and vertical division of the peritoneum. A rubber tube is then buried in a long, oblique canal in the anterior stomach- wall, formed by a process of suturing — following which, the stomach-wall is sutured to the parietal peritoneum and edges of the posterior layer of the rectal sheath — and the abdominal wound closed over all. 960 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Preparation — Position. — See General Surgical Considerations. Landmarks. — Median line; linea semilunaris; left costal arch. Incision. — Oblique, parallel with and 2.5 to 4 cm. (1 to ij inches) from the left costal arch — beginning near the median line and passing downward and outward for about 7.5 cm. (3 inches). Operation. — (i) Incise skin and fascia in above line — clamp vessels — and retract lips of wound. (2) Expose the rectus muscle — divide the ante- rior layer of its sheath — and separate the fibers of the rectus muscle vertically, in their cleavage line, by blunt dissection. (Figs. 703-705.) (3) Divide the posterior layer of the rectal sheath. (4) Divide the transversalis fascia, subserous areolar tissue, and peritoneum vertically. (5) Retract the parts well — -and draw the portion of the anterior stomach-wall which is to be dealt with well into the wound. (6) A velvet-eyed rubber tube is now laid against the anterior wall of the stomach, generally in such a position as to correspond with the outer wound, with the blunt end of the tube toward the cardiac end Fig. 703. — Gasi rostomy, Witzel's Method : — I. Cone of stomach drawn through separated rectal fibers — showing Lembert sutures placed ready to bury tube, which is about to enter stomach through incision in its wall. of the stomach and the opposite end directed toward the lesser curvature. About 5 to 7.5 cm. (2 to 3 inches) of this tube is now buried in the anterior stomach-wall by Lembert gut sutures, placed about 5 mm. (f^ inch) apart, and extending at least 1.3 cm. (£ inch) beyond the point at which the tube is to enter the stomach, and so placed as to avoid the larger vessels. All the sutures are now tied, thus burying i n the tube — except the three or four at the lower end of the tube. (7) The stomach-wall is then held in such a way as to render the site of entrance of the tube into the stomach prominent, and, at the same time, so as to separate the opposite (posterior) stomach-wall — - and with a narrow, sharp-pointed bistoury, a quick, controlled stab is made through all the layers of the anterior stomach-wall, guarding against wounding the opposite (posterior) wall — the opening being made just beneath the tip of the tube, which is temporarily withdrawn about 6 mm. (J inch) for that purpose and just before the stab is made. Immediately upon the completion WITZEL'S GASTROSTOMY. 961 of the stab-wound, which should be a little less in extent than the caliber of the tube, the end of the tube is thrust through the opening and into the cavity of the stomach — and the already placed sutures, which were temporarily left untied at the lower end of the tube, are at once tied — thereby preventing any regurgitation of the stomach contents. (8) The stomach is now allowed to fall back into the abdominal cavity sufficiently to leave only the site of the anterior stomach-wall represented by the buried tube in contact with the edges of the abdominal wound — and even this area is so adjusted as to cause the site of the buried tube to be surrounded by the edges of the abdominal wound in the form of as narrow an ellipse as possible. (9) The serous and muscular coats of the stomach are now united by interrupted gut sutures to the parietal v n m Figs. 704 and 705.— Gastrostomy, Witzel's Method :— II. Manntr of placing sutures ; A, Tube buried in by two parallel folds of stomach-wall united by tying of interrupted Lemberts shown in I ; B. Interrupted sutures passing through serous and muscular coats of stomach, and through parietal peritoneum, posterior rectal sheath, and lower plane of rectus ; C, Interrupted sutures through skin, fascia, anterior rectal sheath, and major part of rectus. III. Final position of tube— seen emerging from completely sutured wound. peritoneum and lower lip of wound along this narrow ellipse. (10) The edges of the abdominal wound are then united — first with chromic gut inter- rupted sutures passing through the entire thickness of the opposite lips of the separated rectus muscle, together with the edges of its sheath, but not in- volving the already sutured peritoneum, — followed by interrupted or con- tinuous silk suturing of the skin and fascia — or subcuticular suturing. Or skin, fascia, and rectus may be sutured in one tier. The rubber tube will emerge between the two or three upper sutures. (11) The rubber tubing is held in position by a silk suture passing through the outer part of its wall and attached to the skin. The tube is left in for three or four days — and then inserted only for feeding. 61 962 OPERATIONS UPON THE ABDOMIXO-PELVIC REGION. Comment. — (1) The site of incision sometimes differs from that above given — and the fibers of the rectus are sometimes cut instead of separated — but all muscular structures should be separated, and nerves retracted, as far as these may be done. (2) Fenger's incision is sometimes used — about 7.5 cm. (3 inches) in length and placed to the left of the rectus, and 2.5 cm. (1 inch) from and parallel with the left costal arch. (3) Before the stomach is dropped back into the abdomen, three gut sutures may be inserted through its serous and muscular coats, each threaded with a needle at either end — and after the stomach has receded into its normal position, these needles are made to pierce the edges of the abdominal wound, from within — and the stomach thus drawn up to the edges of the abdominal opening. (4) By postponing the opening into the stomach until all the sutures are placed and most are tied, the leakage is minimized. (5) Regurgitation is prevented by the constriction of the separated fibers of the rectus — by the long, oblique canal — and by the short artificial cone created by the manner of suturing, and which projects into the stomach. (6) Operators differ as to the direction in which they divide the layers of the rectal sheath and subjacent structures. GASTROSTOMY BY MARWEDEL'S METHOD. Description. — This operation resembles Witzel's in most of its essentials — except that the tube is buried between the mucous coat, on the one hand, and the serous and muscular coats, on the other — and that the parietal peri- Fig. 706.— Gastrostomy, Marwedel's Method :— I. Anchoring of stomach and splitting of stomach-wall ; A, Parietal peritoneum sutured into lower part of lips of abdominal wound ; B, Stomach sutured to parietal peritoneum and lower plane of abdominal wound ; D, Sutures through serous and muscular coats of stomach ; D, Tube about to be buried in stomach-wall. toneum is sutured to the skin before the stomach-wall is attached to the edges of the abdominal incision. Preparation — Position. — See General Surgical Considerations. Landmarks. — As in Witzel's operation. MARWEDEL'S GASTROSTOMY. 963 Incision. — Oblique incision about 6 to 7.5 cm. (2% to 3 inches) in length — made over the left rectus muscle — beginning near the median line and passing downward and outward somewhat more vertically than horizontally, though approximately parallel with and about 2.5 cm. to 4 cm. (1 to ih inches) from the left costal arch. Operation. — (1) Incise skin and fascia — clamp bleeding vessels — and retract the lips of the wound. (2) Expose the rectus muscle — divide the anterior layer of the rectal sheath vertically, nearer its outer part — separate the fibers of the rectus vertically in their line of cleavage, by blunt dissection — divide the posterior layer of the rectal sheath vertically — and the transversalis fascia, subserous areolar tissue, and peritoneum in the same line. (3) The parietal peritoneum is now drawn out and sutured with interrupted gut to the skin at the margin of the abdominal wound. (See Comment.) (4) The anterior stomach-wall is then drawn out and sutured to the parietal peritoneum Fig. 707.— Gastrostomy, Marwedel's Method: — II. Burying of tube and closure of wound; A, Sutures uniting peritoneum to lower plane of abdominal wound; B, Sutures uniting stomach to peritoneum and lower plane of wound; C, Sutures burying tube between mucous coat below, and serous and muscular above; D, Sutures through skin, fascia, anterior rectal sheath, and upper part of rectus. at the margins of the abdominal wound, in the form of a narrow ellipse. (Fig. 706.) (5) For a distance of about 5 cm. (2 inches) and about parallel with the line of skin incision, the serous and muscular coats are incised, carefully guarding against cutting through the mucous coat. The serous and muscular coats are then dissected from the mucosa to either side for a short distance. A rubber tube is now laid between the split coats of the stomach, which are then sutured over it with fine gut. (Fig. 707.) The sutures at the lower end extend 1.2 cm. (h inch) beyond the intended opening and are placed but not tied. When all the rest are tied, an opening is made through the mucous coat in the same manner as in Ssabanajew-Franck's operation — immediately following which, the tube is thrust into the stomach and the lower sutures at once tied. (6) The margins of the abdominal wound are then sutured together with interrupted silk or silkworm-gut. 964 OPERATIONS UPON THE AP.DOMIXO-PELVIC REGION. Comment. — (1) It would seem better to attach the parietal peritoneum to the lower edge of the abdominal wound (rather than to the skin) — and the stomach to the peritoneum thus attached — then the edges of the split rectus can be brought into direct contact, in finally closing the abdominal cavity. (2) Fenger's oblique subcostal incision is often used — about 7.5 cm. (3 inches) in length, placed to the left of the rectus and about 2.5 cm. (1 inch) below and parallel with the left costal arch. The operation may also be done in the median line. (3) The tube may be buried in the stomach-wall before the latter is sutured to the edges of the abdominal wound — which is some- times more convenient. (4) Surgeons differ considerably upon the incision and subsequent steps of the operation. GASTROSTOMY PA* KADER'S METHOD. Description. — This is a modification of Witzel's operation, and consists in the insertion of a tube into the stomach at a right angle to its surface — and, by means of two tiers of Lembert interrupted sutures, two parallel folds are made in the anterior stomach-wall, thus invaginating the stomach- wall and burying in the tube. The stomach is reached through the vertically separated fibers of the rectus. Fig. 708. — Gastrostomy, Kader's Method : — I. Burying tube perpendicularly within stomach ; A, Lower tier of sutures approximating lower ridges of stomach- wall ; B, Upper tier of sutures approxi- mating upper ridges of stomach-wall. Both tiers are partly tied. Note — Through error, the abdominal incision is represented oblique — but should be vertical, as shown in II, Fig. 710. Preparation — Position. — See General Surgical Considerations. Landmarks. — Linea alba; linea semilunaris; left costal arch. Incision. — Vertical incision over the left rectus muscle, beginning about 2.5 cm. (1 inch) below the costal cartilages and extending downward 6 to 7-5 cm - Olto 3 inches). (Fig. 699, C.) Operation. — (i) Incise skin and fascia in the above line — clamp bleeding KADER'S GASTROSTOMY. 96S vessels — retract margins of the wound, exposing the sheath of the rectus. (2) Divide the outer sheath of the rectus vertically. Separate the fibers of the rectus by blunt dissection in their cleavage line. (3) Divide vertically the posterior sheath of the rectus, transversalis fascia, subserous areolar tissue, and peritoneum. (4) Isolate and draw into the wound a fold of the anterior stomach-wall — packing off the peritoneal cavity with gauze. (Fig. 708.) (5) Having selected an appropriate site, and while the stomach is properly held by an assistant so as to avoid injury to the opposite (posterior) wall, an opening somewhat smaller than the caliber of the tube is made by a quick, controlled stab with a narrow, sharp-pointed bistoury. Having seen that no serious hemorrhage follows the stab wound, a rubber tube is imme- diately inserted into the stomach cavity through this opening and sutured to the edge of the stomach wound with two gut sutures passing into but not through the wall of the tube. (61 While the tube is held perpendicular to >- A* Fig. 709. -Gastrostomy, Kader's Method: — Burying the tube by two or more tiers of purse-string sutures. (Redrawn from Fowler.) the stomach-wall at its point of entrance, two chromic gut Lembert sutures, about 1.2 cm. (h inch) apart, are so passed through the serous and muscular coats of the stomach, on either side of the tube, as to raise a fold or pleat of stomach-wall about 7.5 cm. (3 inches) long and 1.2 cm. (£ inch) high. These deep occlusion sutures are then tied — the included tissues infolding into the stomach in the form of a funnel-shaped projection. A second tier, superficial occlusion sutures, is similarly placed, at the same distances apart, above the first, which are, in turn, thus buried in by the second, forming 966 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. a second fold. The sutures of the second tier are temporarily left long, to aid in the subsequent manipulation of the stomach. (7) The tube may be buried by means of two or more tiers of purse-string sutures (Fig. 709). (8) The general peritoneal cavity is shut off by stitching the serous and muscular coats of the stomach, on the one hand, to the parietal peritoneum and edges of the divided posterior sheath of the rectus; on the other— holding the stomach by means of the temporarily left occlusion sutures. (Fig. 710.) (9) The separated edges of the rectus are sutured with interrupted chromic gut sutures —and the anterior sheath of the rectus with a similar separate line of sutures— both being closely approximated to the tube. The skin is closed by inter- rupted silkworm-gut sutures. Comment.— (1) This operation is more generally applicable than Witzel's, of which it is a modification, because of requiring less amount of movable stomach-wall— and because it may be used through any kind of incision Fig. 710— Gastrostomy, Kader's Method: — II. Anchoring of stomach and closure of wound; A, Suture uniting serous and muscular coats of stomach to parietal peritoneum and margins of wound ; B, Sutures passing through skin, fascia, anterior rectal sheath, and rectus ; C, Tier of sutures burying in tube. exposing the stomach. (2) The folds or pleats are made transverse when the opening is to be temporary-^-and perpendicular when the opening is to be permanent. (3) Where the stomach is so small, or so bound down, as to make it impossible to bring it well into the wound, the pleating may be made and the tube buried with the stomach in sit a. (4) The efficiency of the method depends chiefly upon the valvular invagination of the stomach- wall. The sides of the infolded funnel soon become adherent, leaving only the tubular tract patulous. (5) As in most Gastrostomies, surgeons vary as to the exact placing of the external incision and the manner of dividing, dealing with, and suturing the subjacent layers. (6) A somewhat similar method (Abbe and Stamm) consists in thrusting a tube, through a previously made opening, perpendicularly into the anterior stomach-wall — then sur- rounding it by a circular purse-string suture about 1.2 cm. (J inch) from the catheter, which is then tied, gut being used — then a second purse-string GASTROENTEROSTOMY IN GENERAL. 967 suture about 2.5 cm. (1 inch) from the first, which is tied similarly — and a third — the stomach being attached to the abdominal wall as above. Note. — Other forms of Gastrostomy might be mentioned — some repre- senting older, some more modern methods — such as Howse's; Greig Smith's modification of Howse's; E. J. Senn's; Andrew's; Yon Hacker's; and others' — but those above described in detail sufficiently cover the best modern methods. GASTROENTEROSTOMY IN GENERAL. By Gastroenterostomy is meant the establishment of an anastomotic opening between the stomach and some part of the small intestine — the name of the operation being further designated by the part of the intestine Fig. 711. — Diagram Representing Gastroenterostomies : — A, Anterior gastroenterostomy — small intestine being carried over omentum and applied to anterior stomach-wall ; B, Posterior gastroenterostomy— small intestine being carried through an opening made in transverse mesocolon and applied to posterior stomach-wall, i Modified from Gray.) anastomosed — for example, gastro-duodenostomy, gastrojejunostomy, gastro- ileostomy. The object of the operation is generally to obtain the complete emptying and rest of the stomach — or to furnish egress from it in cases of obstinate obstruction at or near the pyloric end — or in cases of excision of the intestine near the pylorus. The nearer to the stomach the portion of intestine anastomosed, the greater will be the length of small intestine left for absorption. That portion of the stomach between the pyloric end and the site of the intestine anas- tomosed with the stomach becomes partially thrown out of circuit ("short- circuited") in proportion as it continues or not to transmit intestinal contents, and henceforth performs more or less limited function — the bulk of the stomach contents traveling by the new route, while the small amount which escapes through the pylorus still goes by the old route. The flow of the stomach contents is usually from the cardiac to the pyloric and alone the greater curvature, nearer which the anastomosis is generally 968 OrERATlONS UPON THE ABDOMINO-PELVIC REGION. made — and usually from the pyloric to cardiac end along the lesser curvature. It is always desirable to so approximate a coil of intestine to the stomach that the flow in both viscera may be in a normal direction — which is generally accomplished by giving the coil of intestine a half-turn just before making the anastomosis. In order to avoid regurgitation into the stomach of intestinal contents, including bile, many surgeons, after completing the gastroenterostomy, per- form a jejuno-jejunostomy (between the proximal and distal limbs of the jejunum) — the Jaboulay-Braun operation (see page 971). The intestine may be anastomosed to the anterior or to the posterior wall of the stomach — constituting Anterior or Posterior Gastroenterostomy. The latter operation is preferable — the reasons for which being given under Com- ment upon the two operations, pages 971 and 977. (Fig. 711.) ANTERIOR GASTRO-ENTEROSTOMY P,V SIMPLE SUTURING — WOLFLER'S OPERATION. Description. — In this operation some part of the small intestine is carried up in front of the great omentum and transverse colon and united by some method of suturing, without the aid of one of the mechanical devices, to the anterior wall of the stomach, nearer its greater curvature. (Fig. 711, A.) The nearest part of the small intestine to the pyloric end of the stomach which is available, which will generally be the jejunum, is the portion usually selected for the anastomosis — constituting gastrojejunostomy. Preparation. — The stomach is washed out; the site of the operation is shaved; the bowels are emptied by purgation. Position. — Patient supine, at side of table, with abdominal parietes relaxed by slight elevation of the shoulders and slight flexion of the hips; Surgeon to the right; Assistant opposite. Landmarks. — Lineaalba; xiphoid cartilage; umbilicus. Incision. — In median line, from just below xiphoid cartilage to umbilicus — and beyond, if necessary (Fig. 699, A). Operation. — (1) Is conducted as a median abdominal section up to the exposure of the abdominal cavity. (2) The beginning of the jejunum is now sought — and is most readily found by temporarily displacing the great omentum upward and to the left, and the transverse colon and meso- colon upward and to the right — and by following down the under surface of the mesocolon to its base, from left to right, as the finger passes, beneath the ligament of Treitz, a loop of small intestine is encountered, which is the commencement of the jejunum. (Fig. 712.) This is now followed down several inches until a convenient distance for anastomosis, without tension, to the anterior stomach-wall is secured — which is generally about 40 to 50 cm. (16 to 20 inches). (3) This site of jejunum being held by an assistant, the transverse mesocolon and great omentum are now allowed' to drop back into place — the jejunum being brought down, around and in front of them — seeing that sufficient length of intestine for this course is allowed. Then to cause the flow in the intestinal canal to correspond with the gastric flow (from left to right) the loop of jejunum is given a half-turn (Rockwitz's modification) and is thus approximated to the anterior wall of the stomach, near its greater curvature. (Fig. 713.) It is important that this approxima- tion should be accomplished without undue twisting and tension of the intestine, or other marked disarrangement of normal relations of the parts concerned. (4) When all is in readiness for suturing, the proposed site of ANTERIOR GASTROENTEROSTOMY. 969 anastomosis of the anterior stomach-wall and the corresponding portion of the jejunum should be drawn somewhat out of the abdominal cavity for the greater convenience of manipulation. An assistant holds the antime- senteric border of the jejunum in easy contact with the lower anterior surface of the stomach-wall, near the great curvature — holding the stomach so as to exclude, as much as possible, an outflow of its contents when incised — the intestines being squeezed empty and clamped — or each viscus may be clamped, as shown in the posterior operation (Fig. 717). (5) With a long, straight needle, threaded with chromic gut, or silk, a line of continuous suturing, passing through serous and muscular coats of the intestine, on the one hand, and the same coats of the stomach, on the other, is carried along what will form the posterior line of union, the needle being inserted at close intervals — the suture left hanging long at both ends, with the needle at one end, and knotted at the other — and the suturing having extended in a slightly elliptical Fig. 712. — Manner of Locating Beginning of Jejunum; Incised Mesocolon Pre- paratory to Posterior Gastro-enterostomy: — A, Great omentum displaced upward and to left; B, Transverse colon and mesocolon displaced upward and to right; C, Commencement of jejunum emerging from beneath ligament of Treitz; D, Incision in mesocolon through which jejunum is to be carried into the cavity of the lesser omentum and approximated to posterior stomach-wall. direction, beginning and ending about 1.2 cm. (^ inch) beyond the ends of the future incision through the two opposed walls. (6) With a sharp- pointed bistoury, a quick, controlled stab is made into the stomach, in its long axis, and then into the intestine, in its long axis, in the indicated sites, and so planned that the incisions will fall immediately opposite each other and be of the same size — the incisions being made while both stomach and intestine are so held by an assistant as to present their proper surfaces, and, at the same time, the opposite wails are held apart so as not to be also pene- trated by the knife stab. One blade of a pair of sharp-pointed scissors is now introduced, and both incisions lengthened in the long axes of both viscera to the extent of about 5 to 6.5 cm. (2 to 2 \ inches) — until within about 1.2 cm. (^ inch) of either end of the posterior line of suturing. These incisions 97° OPERATIONS UPON THE ABDOMIXO-PELVIC REGION. into the stomach and intestine, made immediately opposite each other, should be from 5 to 8 mm. (j to ^ inch) from the suture-line. Soiling of the adjacent structures with the outflow of stomach and intestinal contents should be prevented as much as possible with gauze packing. All bleeding should be controlled by clamping and twisting — and is further controlled by suturing — and by gut ligature if necessary. (7) Immediately following these incisions, the margins of the intestinal incision are united to the margins of the stomach Fig. 713. — Anterior Gastroenterostomy Followed by Jejuno-jejunostomy: — A, Stomach; B, Duodenum; C, Jejunum, after emerging from ligament of Treitz; D, Coil of jejunum given a half-turn and applied to lower aspect of anterior stomach-wall; E, E, Outer tier of continuous Lembert suturing; F, F, Inner tier of continuous overhand suturing approxi- mating edges of opening in stomach and intestine; G, Intestinal clamps; H, Entero-enterostomy by Murphy button; I, Transverse colon; J, Omentum folded back by uplifted jejunum. incision by continuous suturing with silk or chromic gut, passed with a curved needle held in a holder, the sutures passing through all the coats of both stomach and intestine, the edges of the incision being so held as to enable them to be whipped together by an overhand stitch. (8) The threaded end of the original continuous gut or silk suture is now taken up and the line of suturing continued from the end where it was temporarily discontinued, on around now in front of the line of incisions into stomach and intestine, in the same slightly elliptical outline as upon the posterior aspect, and passing ANTERIOR GASTROENTEROSTOMY BY MURPHY BUTTON. 971 about S to 12 mm. (J to h inch) from the line of incision into the lumina of the viscera — until the suturing reaches the opposite end, when the free end of the suture is tied to the end originally left long after knotting. Thus the inside line of sutures, chiefly for strength, is reinforced by -this secondary line uniting the muscular and serous coats, and thus shutting off any leakage which might escape through the suturing of the margins alone. The stomach and intestine must be so manipulated during the various stages of the suturing as to present the site to the surgeon most advantageously. (9) A third line of interrupted gut Lemberts may be now applied, burying in the other two, if thought necessary — but is rarely needed. (10) The viscera are now dropped back into the peritoneal cavity and the abdominal wound closed as usual. See, under Comment, reference to intestinal anastomosis as an accompaniment of gastro-enterostomv. Comment. — (i) The chief objections to the anterior method of gastro- enterostomy are — that the transverse colon is apt to be compressed by the small intestine resting and dragging upon it; — that the two intestinal arms descending from the stomach are apt, by gravity and traction, to become parallel, and a spur-formation thereby occur at the stomach opening, by converting the original curve at their point of meeting into an angularity; — and that regurgitation of intestinal contents, including bile, into the stomach is more frequent after the anterior operation. Therefore various suggestions have been made to overcome the above disadvantages — such as valvular forms of anastomoses, — multiple intestinal anastomoses, or a single intestinal anastomosis, to carry off the contents of the proximal end of the intestine, including bile, — and, probably best of all, posterior gastro-enterostomv. (2) In all forms of gastro-enterostomv, but especially in the anterior operations, it is advisable, after completing the gastro-enterostomv proper, to form an intestinal anastomosis, a jejuno-jejunostomy, at the site and in the manner described in connection with the following operation (page 971). (3) In the operation just described, wherever the continuous suture is used, it is well to tie it at several points (without intermitting the stitch) rather than at one only — to do away with any possibility of the suture acting as a "draw- string" and constricting the opening. ANTERIOR GASTROENTEROSTOMY BY THE MURPHY BUTTON; FOLLOWED BY SINGLE OR MULTIPLE INTESTINAL ANASTOMOSIS BV THE JABOULAY-BRAUN METHI >D. Description. — Consists, first, in performing an anterior gastro-enteros- tomv, by bringing the highest available part of the jejunum up in front of the great omentum and transverse colon and uniting it to the anterior wall of the stomach, nearer its greater curvature, by means of the Murphy button. For the reasons explained under Comment in the last operation, the two arms of the loop of jejunum are then anastomosed, either by the Murphy button or by simple suturing — constituting single intestinal anastomosis, — or, in addition to the anastomosis thus formed, one or more other anasto- moses may be made between adjacent coils of intestine, if the need for these be indicated. Preparation — Position — Landmarks — Incision. — As in the operation just described. "* Operation. — (1) All the steps of the gastro-enterostomv are precisely similar to those described under anterior gastro-enterostomv by simple suture, 972 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. up to the point of making the anastomosis — which, in the present case, is accomplished by means of the Murphy button. The male half of the button is inserted into a convenient, relatively non-vascular part of the anterior wall of the stomach, near the greater curvature and about at its center. The insertion of the half button into the stomach is accomplished exactly as described under entero-enterostomy by the Murphy button (page 885) — the incision into the stomach-wall being in its long axis, and all bleeding being controlled by twisting or ligature before proceeding. The female half of the button is then inserted into the antimesenteric aspect of the loop of jejunum — also in the same manner as described in entero-enterostomy by the Murphy button. When all is in readiness, the two halves of the button are approxi- mated in the usual manner. If thought necessary, the button anastomosis Fig. 714. — Anterior Gastroenterostomy by Simple Suturing, followed by Entero- enterostomy by Gallet's Method of Introducing Weir's Modification of the Murphy Button: — A, Stomach opening; B, Intestinal opening; C, C, Manner of applying the buttons from within parallel limbs of jejunum; D, Omentum folded back over a reversed coil of jejunum. may be reinforced by a few interrupted Lemberts. (2) The anastomosis between the antimesenteric aspect of the limbs of the jejunum, several inches below the stomach, is now accomplished in one of the following ways: — (a) By Gallet's method of introducing Weir's modification of the Murphy button: — When the incision is made into the knuckle of jejunum to be anas- tomosed to the anterior stomach-wall, and before that anastomosis is done, the male half of the button, with the end of its cylinder beveled and sharpened, as modified by Weir, is introduced down the proximal limb of the jejunum, in the grasp of a pair of forceps, the handle of the forceps being steadied by an assistant, — and the female button, similarly grasped, is introduced down the distal limb of the jejunum — and while thus held, the two halves of the button are approximated and pressed home, the cutting cylinder of ANTERIOR GASTROENTEROSTOMY BY MURPHY BUTTON. 973 the male button cutting its way through intervening intestinal wall of the proximal and distal limbs of the gut and finding its way into the female cylinder. No reinforcing suture is necessary — though may be applied if desired. The forceps are now withdrawn from the opening in the knuckle of intestine, and the anastomosis between stomach and intestine completed. (Fig. 714.) (b) By Hartley's method: — the ordinary Murphy buttons are used — the male button being dropped through the incision at the knuckle of intestine into the proximal, and the female button into the distal limb. The gastro-intestinal anastomosis is then completed — after which each button is grasped and, while so held as to bring their cylinders into contact with the antimesenteric aspect of the jejunum, at the indicated site, two small incisions are made at right angles through the intestinal wall, which has been stretched like a drum-head over the ends of the cylinders — the surgeon steady- ing one button with the fingers of his left hand, and an assistant steadying Fig. 715. — Anterior Gastroenterostomy by Simple Suturing, followed by Entero- ENTEROSTOMY by the Mi'rphy Bctton: — By means of buttons dropped into parallel limbs of jejunum, and then approximated through incisions made over their cylinders. (Hartley's method.) the other. The buttons are then pressed together in the usual fashion — no reinforcing suturing being ordinarily used. (Fig. 715.) (c) The Murphy buttons may be used to make the intestinal anastomosis in the ordinary manner — as described in entero-enterostomy by lateral anastomosis (page 888). (d) The intestinal anastomosis may also be made by simple suturing. (3) The stomach and intestines having been dropped back into place, the abdomen is closed as in median abdominal section. Comment. — If it be thought advisable, in addition, to anastomose adjacent coils of intestine, in order to increase the freedom of passage of intestinal contents, one or more anastomoses may be made where indicated — the opera- tion becoming an entero-enterostomy by lateral anastomosis, and one of the methods described under that head may be used — the Murphy button being the means usually employed. 974 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. POSTERIOR GASTROENTEROSTOMY BY VON HACKER'S METHOD. Description. — In this, the more commonly performed, operation some part of the small intestine as near as possible to the stomach (generally the upper part of the jejunum) is carried through an artificial opening made for the purpose in the transverse mesocolon, and anastomosed with the posterior wall of the stomach — constituting a posterior gastrojejunostomy (Fig. 711, B) — after which the two limbs of the jejunal loop are united, forming a jejuno-jejunostomy. Preparation — Position — Landmarks. — As in the anterior operation. N •X N Fig. 716. — Posterior Gastro-enterostomy: — I. — The omentum and transverse colon have been displaced upward and in front of the stomach; — The transverse mesocolon is incised and its margins sutured to the posterior stomach-wall; — A loop of the jejunum has been brought up into contact with the stomach; — The lines of incision are shown upon the stomach and jejunum. (Modified from Mayo and Gould.) Incision. — In the median line — beginning about 5 cm. (2 inches) below the ensiform cartilage and extending below the umbilicus. The incision is sometimes made through the right rectus. Operation. — (1) Expose the peritoneal cavity, as in median abdominal section. (2) Lift the great omentum upward and to the left, and the trans- verse colon upward and to the right, displacing them over the stomach. (3) Isolate and draw out the beginning of the jejunum, as described in anterior gastro-enterostomy. (4) An assistant, standing above the stomach and to one side, so grasps the stomach that both his thumbs press its anterior and POSTERIOR GASTROENTEROSTOMY. 975 his fingers its posterior surface — then by pronating his forearms, the posterior surface is protruded downward and forward prominently toward the surgeon, the transverse mesocolon intervening. (5) Separate the fibers of the trans- verse mesocolon by blunt dissection in the direction of its vessels, in anon- vascular region, and opposite the site of the future anastomosis — thus opening into the cavity of the lesser omentum. (Fig. 716.) (6) The assistant, continuing to press upon the stomach as above, causes its posterior wall to bulge through the artificial slit in the transverse mesocolon — until it presents in the cavity of the great omentum. The edges of this slit in the mesocolon are immediately sutured to the stomach, leaving an oval area of posterior stomach-wall of sufficient size, the sutures passing through the entire thickness of transverse mesocolon and through serous and muscular coats of the stomach. Fig. 717. — Posterior Gastroenterostomy: — II. — Folds of stomach and intestine have been taken up by special clamps, approximated, incised — and are being sutured; — The outer seromuscular and the inner through-and-through sutures are shown. (Modified from Mayo and Gould.) (7) A convenient coil of jejunum, so selected as to avoid tension and kinking, is now approximated to the posterior gastric wall — its contents having been pushed away for several inches on either side and kept away by clamping the gut — the assistant holding the stomach likewise keeping its contents away from the site as far as possible. The coil of jejunum should be so approximated to the stomach as to make the flow of contents from the latter correspond with that in the intestine (Fig. 716). While the need of giving it a half-turn is not so pressingly necessary as in the anterior gastro-enterostomy, because of the more favorable relations of the parts at the site of the posterior oper- ation, it is, nevertheless, generally best to resort to this manoeuvre. The stomach and jejunum are very satisfactorily held in contact for incision and suturing by means of special clamps applied as shown in Fig. 717. (8) 976 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Moynihan's line of gastric incision is oblique, passing from above and to the left, downward and to the right, along an imaginary line extending between two points represented by the middle of the dome and the lowest point on the greater curvature of the stomach. The lowest point, which is variable, is placed at from 5 to 7.5 cm. (2 to 3 inches) to the left of the sphincter of the pylorus. The handles of the gastric clamp will point to the patient's right shoulder. Mayo carries the incision to the lower edge of the stomach, which requires the separation of the greater omentum from the posterior aspect of the stomach to some extent. The incision into the jejunum is made upon its antimesenteric aspect. (9) While the jejunum is held in contact with the posterior stomach-wall (both being drawn as far out of the abdominal . w r J. - Fig. 718. — Posterior Gastroenterostomy : — III. — The jejunum is shown sutured to the wall of the stomach — the latter part of the seromuscular suture being placed. (Modified from Mayo and Gould.) cavity as feasible) the surfaces are sutured together exactly as in Wolner's Anterior Gastro-enterostomy (page 968). (10) With a long, straight needle, threaded with chromic gut or silk, a line of continuous suturing, passing through serous and muscular coats of the intestine, on the one hand, and the same coats of the stomach, on the other, is carried along what will form the posterior line of union, the needle being inserted at close intervals — the suture left hanging long at both ends, with the needle at one end, and knotted at the other — and the suturing having extended in a slightly elliptical direction, beginning and ending about 1.2 cm. {\ inch) beyond the ends of the future incision through the two opposed walls (Fig. 718). (n) With a sharp-pointed bistoury, a quick, controlled stab is made into the stomach, in its oblique axis, and then into the intestine, in its long axis, in the indicated sites, and POSTERIOR GASTROENTEROSTOMY. 977 so planned that the incisions will fall immediately opposite each other and be of the same size — the incisions being made while both stomach and intestine are clamped and are so held by an assistant as to present their proper sur- faces, and, at the same time, the opposite walls are held apart so as not to be also penetrated by the knife stab. One blade of a pair of sharp-pointed scissors is now introduced, and both incisions lengthened in both viscera to the extent of about 5 to 6.5 cm. (2 to 2 J? inches) — until within about 1.2 cm. (i inch) of either end of the posterior line of suturing. These incisions into the stomach and intestine, made immediately opposite each other, should be from 5 to 8 mm. (| to J inch) from the suture-line. Soiling of the adjacent structures with the outflow of stomach and intestinal contents should be prevented as much as possible with gauze packing. All bleeding should be controlled by clamping and twisting — and is further controlled by suturing — and by gut ligature if necessary. (12) Immediately following these incisions the margins of the intestinal incision are united to the margins of the stomach incision by continuous suturing with silk or chromic gut, passed with a curved needle held in a holder, the sutures passing through all the coats of both stomach and intestine, the edges of the incision being so held as to enable them to be whipped together by an overhand stitch. (13) The threaded end of the original continuous gut or silk suture is now taken up and the line of suturing continued from the end where it was temporarily discontinued, on around now in front of the line of incisions into stomach and intestine, in the same slightly elliptical outline as upon the posterior aspect, and passing about 8 to 12 mm. (^ to h inch) from the line of incision into the lumina of the viscera — until the suturing reaches the opposite end, when the free end of the suture is tied to the end originally left long after knotting. Thus the inside line of sutures, chiefly for strength, is reinforced by this secondary line uniting the muscular and serous coats, and thus shutting off any leakage which might escape through the suturing of the margins alone. The stomach and intestine must be so manipulated during the various stages of the suturing as to present the site to the surgeon most advantageously. (14) A third line of interrupted gut Lemberts may be now applied, burying in the other two, if thought necessary — but is rarely needed. (15) The viscera are now undamped and dropped back into the peritoneal cavity. After which the limbs of the jejunal loop are anastomosed by simple suturing, or by some form of mechanical device. See comment following YYolfler's Anterior Gastro-enterostomy, page 971, and also Figs. 713, 714, and 715. (16) The abdomen is closed in the usual manner. Comment. — (1) When adhesions make the exposure of the lesser peri- toneal cavity difficult or impossible, the posterior operation should be abandoned and the anterior adopted. (2) The jejunum should be suspended by a stitch to the stomach on each side of the anastomosis, to prevent kinking and dragging (Hadra). (3) The portion of the jejunum about 10 to 12.5 cm. (4 to 5 inches) from the duodenojejunal juncture is used. About 7.5 cm. (3 inches) of the viscera are taken up in the clamps. (4) In the posterior operation, the opening in the stomach is made with a slight obliquity from left to right and from above downward — the intestine being incised in its long axis, as in the anterior operation. (5) The suturing of the split transverse mesocolon to the stomach lessens the chance of the intestine slipping through the opening — and also lessens traction of the transverse mesocolon on the small intestine. (6) The application of the sutures is somewhat more difficult in the posterior operation. In placing the continuous suture, it is well to tie it at intervals, without interrupting its continuity — to prevent its acting as a draw- 97 8 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. string. There is also probably greater danger of twisting of the intestines subsequently — owing to the passage through the slit in the mesocolon. (7) While a single intestinal anastomosis is generally advisable, some surgeons perform multiple intestinal anastomoses — to further prevent regurgitation of intestinal contents. Some surgeons also narrow the caliber of the proximal portion of the small intestine, by Lemberts through the serous and muscular coats transversely, thus infolding the walls as a rosette. (8) The various disadvantages of the anterior operation are, however, largely overcome — and some of them entirely overcome. The direction of the flow and the position of the parts are more natural. Fig. 719. — Posterior Gastroenterostomy by the Murphy Button, followed by Entero-enterostomy : — A and B, Great omentum and transverse colon turned upward; C, Transverse mesocolon with edges of its incised wall sutured to posterior stomach-wall; D, Pos- terior stomach-wall with a half-button inserted; E, Coil of jejunum, with a half-button inserted; F, F, Forceps holding buttons; G, Coil of jejunum, just beyond ligament of Treitz, given a half-turn; H, Mesentery of jejunum; I, Entero-enterostomy by simple suturing; J, Intestinal clamps. POSTERIOR GASTROENTEROSTOMY BY THE MURPHY BUTTON. Description. — Consists in anastomosing the jejunum to the posterior stomach-wall by means of the Murphy button — the manner of exposing the GASTROGASTROSTOMY. 979 parts being the same as in Von Hacker's Posterior Gastro-enterostomy — and the manner of applying the button being identical with its application in the operation of Anterior Gastro-enterostomy by the Murphy button. See pages 971 and 974. (Also see Fig. 719.) Where a single or multiple intestinal anastomosis is done in connection with the operation of Gastro-enterostomy, it may be performed in one of the several manners mentioned upon page 972. Note. — There are several other methods of performing both Anterior and Posterior Gastro-enterostomy — but those above described are considered among the best modern methods. GASTROGASTROSTOMY BY W'oLFI.KR'S OPERATION. Description. — The operation of Gastrogastrostomy consists in the anasto- mosis of the two pouches of an hour-glass contraction of the stomach, for the purpose of making a common cavity. Wolfler's method of operating is probably more applicable to a symmetrically deformed hour-glass contrac- tion, where the two pouches are approximately of the same size and the inter- vening connection fairlv large. 1 Fig. 720. — The Pouches of an Hour-glass Stomach. Preparation — Position. — Gastrostomy in General, page 956. Landmarks. — As for median abdominal section. Incision. — In the median line — from the tip of the xiphoid cartilage to about 7.5 cm. (3 inches) below the umbilicus. Operation. — (i) Having exposed the abdominal cavity, the deformed stomach is brought as well into the wound as possible — the portion inter- vening between the two pouches being apt to be bound down to the pancreas and gastro-hepatic ligament. (2) Having packed off the adjacent regions 980 OPERATION'S UPON THE ABDOMINO-PELVIC REGION. with gauze, the assistant clamps and hold- first «>ne and then the other gastric pouch conveniently to the surgeon — the clamps including most of the anterior stomach-wall, and the greater curvature and omental attachment, so as to obliterate the pouches. (3) Oval incisions (thus excising elliptical portions) are made upon those aspects of the two pouches which face each other — extending into their lower borders, so as to re-establish a greater curvature. (Figs. 720 and 721.) It is well to use Kammerer's application of Finney's gastro-duodenostomy technic here (Figs. 729-733). These openings are about 7 cm. (2J inches) long and pass through all the coats of the stomach. Bleeding vessels are clamped and gut-ligatured. The pouches are so held as to minimize the escape of intestinal contents. (4) An assistant now approximates the two openings, while a continuous seromuscular suture is first applied posteriorly, followed by a through-and-through suture of the margins. Then the outlying line of sutures through the serous and muscular coats, which had been applied posteriorly only, is now continued on around Fig. 721. — Gastro-gastrostomy for Hour-glass Stomach: — The two pouches have been clamped and incised, and are approximated ready for suturing. ( Redrawn from Gould.) the sides and in front — thus completing the double line of suturing. Similarly and preferably the cut margins can be whipped together with a continuous overhand stitch of all the coats, followed by an outlying continuous sero- muscular suture. (5) The stomach is now returned to its position and the abdomen closed. Comment. — (1) The openings are so calculated that they will correspond with the greater curvature of the stomach — and increase this when the two halves of the stomach are united. (2) In some cases of non-symmetrical hour-glass contraction of the stomach, the pyloric pouch is bent over upon a vertical axis and sutured along an elliptical outline to the cardiac pouch — • an opening is then made in the pyloric pouch, and through this an incision ■ is made through the two walls which have been sutured together and which now intervene between the two pouches — the margins of this incision through the double walls is then whipped over with a button-hole stitch — and then the original incision in the pyloric pouch is closed by sutures — and the abdo- men, which has been opened by an incision from the tip of the xiphoid carti- GASTROPLICATION. 981 large down the median line two-thirds of the way to the umbilicus, and thence rounding outward and upward to the left costal arch, is closed — constituting Watson's operation. GASTROPLICATION. WEIR'S MODIFICATION OF BIRCHER'S operation. Description. — Gastroplication consists in the reduction of the size of a chronically dilated stomach bv invaeinating a fold of the stomach-wall into Figs. 722 and 723. — Gastroplication (Weir's Modification of Bircher's Operation): — I. A, Sound infolding anterior stomach-wall ; B, B, First tier of Lembert sutures burying in sound ; C, Second tier of sutures ready to bury in sound for second time, when latter is placed upon first tier. II. Sectional view of stomach after the two tiers have been tied. the lumen of the stomach, with suturing together of the walls of the infolded portion. Preparation — Position — Landmarks. — As for median abdominal sec- tion. Incision. — In the median line — from below the ensiform cartilage, nearly or quite to the umbilicus. Operation. — (1) Expose the abdominal cavity by the usual steps of the median abdominal section — control hemorrhage — retract the edges of the wound — well expose the anterior surface of the stomach and lift it as far forward into the wound as possible, separating by blunt dissection all minor adhesions. (2) In a direction parallel with the long axis of the stomach, 982 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. and midway between the greater and lesser curvatures, depression of the anterior surface of the stomach is made with a sound, causing parallel longi- tudinal ridges to form on either side of the sound. (Figs. 722 and 723.) (3) These ridges of anterior stomach-wall are now united with interrupted silk sutures, passing through serous and muscular coats of each ridge, and extending for 15 to 20 cm. (6 to 8 inches). (4) The sound is now withdrawn and reapplied over the first line of sutures, and parallel with it — similarly depressing them — and similarly causing two secondary parallel longitudinal folds of anterior stomach-wall to rise up on each side of the sound. These secondary folds are similarly sutured. Whether a third tier is placed, will depend upon the size of the stomach — the process being continued, in some cases, until the greater and lesser curvatures meet. (5) The stomach is then allowed to recede into position — and the abdomen is closed. Comment.— Bircher did not suture the two walls of the fold together, but left a dead space — Weir's suturing of these folds into apposition con- stitutes his modification. Chromic gut may be substituted for silk. Figs. 724 and 725.— Gastroplication (Moynihan's Modification of Bircher's Operation): — I. — Interrupted plaiting sutures in anterior wall of stomach; II. — Cross-section of stomach, showing the result of tightening and tying these sutures. GASTROLYSIS. 983 GASTROPLICATION. moynihan's modification of bircher's operation. Description. — The same object is here accomplished by a different application of the sutures. Preparation — Position — Landmarks — Incision. — As in the preceding operation. Operation. — Having exposed the stomach, a series of vertical interrupted seromuscular sutures are placed in its anterior wall — as illustrated in Fig. 724. Each stitch passes into the wall of the stomach several times — and when these are drawn tight and tied, the wall of the stomach is folded into as many plaits or ridges as there are bites in each suture — as shown in Fig. 725, the plaitings projecting into the interior of the organ. A posterior gastroenterostomy is done in completing the operation. GASTROPEXY. Description. — Consists in the suturing of a prolapsed or displaced stomach to some fixed point of support. The condition of the stomach is termed gastroptosis — and as this condition is frequently associated with a general enteroptosis (Glenard's disease) of the abdominal viscera, suturing into a more fixed position of other viscera than simply the stomach is generally indicated. The viscera usually sutured to the anterior abdominal wall are the stomach, liver, and transverse colon. Preparation — Position — Landmarks. — As for median abdominal sec- tion. Incision. — In the median line, from just below the xiphoid cartilage to or below the umbilicus. Operation. — (1) Expose the abdominal cavity — control hemorrhage — retract margins of wound — isolate the stomach and other displaced organs. (2) The following steps have been resorted to: — (a) Treves, in whose case the liver was also involved, passed three stout silk sutures — one through the edge of the liver to the round ligament — and two from the falciform ligament and round ligament to the fibrous tissue of the abdominal parietes near the ensiform cartilage, (b) Duret passed a continuous suture through the serous and muscular coats of the anterior wall of the stomach, on the one hand, and through the undivided parietal peritoneum on a level with the fold around the round ligament of the liver, on the other, (c) Rovsing placed three silk ligatures between the anterior wall of the stomach and the parietal peritoneum, (d) Davis, in one case, sutured, with silk, the lesser curvature of the stomach to the parietal peritoneum near the xiphoid cartilage. In another case, he did the same operation, together with gastroplication. (e) Beyea shortened the gastro-hepatic omentum with eight or ten inter- rupted sutures, (f) Depage operated by lessening the capacity of the ab- dominal cavity by removing a T-shaped segment of the abdominal wall. GASTROLYSIS. Description. — Consists in division of gastric peritoneal adhesions from neighboring structures. The adhesions are met incidentally, in the course of other operations. The region of adhesions having been well exposed in the course of some 984 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. primary operation, the adhesions are dealt with according to their nature: — (1) Slight, flat adhesions may be separated by finger or blunt dissection; — (2) Cord-like or ribbon-like adhesions are divided between double ligatures;— (3) Extensive, firm adhesions often require partial excision of the wall of the stomach, or that of the neighboring organ — with repair of the denuded surface, or excised area, by suturing, omental grafting, etc. Note. — See the section upon Peritoneal Adhesions, page 822. GASTROPLASTY. Description. — An operation for widening the opening between the two pouches of an hour-glass contraction of the stomach — similar in principle and application to Pyloroplasty. The stomach is exposed by median abdominal section — after which the narrowed portion between the two pouches is brought into the field — and the same operation is there done which will be described below under Pvloro- plasty. The contracted portion of the stomach is grasped with special clamps in the long axis of the organ. An incision into the lumen is then made in the long axis of the clamped portion — and the protruding mucous membrane excised. While the anterior stomach-wall is being drawn forward with forceps, so as to prevent leakage, the clamps are shifted — and are made to grasp the opening at a right angle to their first hold. The margins of the opening are then closed by a continuous overhand suture of all the coats — followed by a continuous seromuscular suture after the removal of the clamps. The principle is the same as that of the Heinecke-Mikulicz pyloroplasty (page 984). PYLOROPLASTY. THE HEINEKE-MIKULICZ OPERATION. Description. — Consists in an increasing of the caliber of the pyloric orifice of the stomach, by means of a horizontal incision through its anterior wall, corresponding with the site of stricture, followed by a vertical suturing of the wound. Chiefly resorted to in non-malignant stricture of the pylorus. Preparation — Position. — As for Gastrostomy. Landmarks. — Linea alba — for median incision; — right rectus — for in- cision through rectus. Incision. — (1) Incision is generally made in the median line, beginning a short distance below the xiphoid cartilage and extending nearly to, or beyond, the umbilicus. (2) A better approach to the site itself, though with more injury to the abdominal wall, is accomplished by a vertical incision through the outer third of the right rectus muscle. The median incision will be used in the operation which follows. Operation. — (1) The abdominal cavity having been opened — hemor- rhage is controlled — and the edges of the wound, especially on the right side, are well retracted. (2) 'The pylorus is isolated (any slight adhesions being separated by blunt dissection) and brought into the abdominal wound as well as possible. Neighboring regions are well guarded by gauze packing. (3) Incise longitudinally through the anterior wall of the pylorus, beginning over the gastric aspect and ending over the duodenal aspect of the pylorus, PYLOROPLASTY. 985 -•/- ^H^^^ Fig. 726. — Pyloroplasty (Heinecke-Mikulicz Operation): — I. — The stomach and duodenum are clamped and the constricted gastro-duodenal junction incised. Fig. 727. — Pyloroplasty (Heinecke-Mikulicz Operation): — II. — The incision which was made in the long axis of the gastro-duodenal constriction is now retracted in the opposite direction. Two rows of interrupted sutures are placed — through-and-through (the shorter) and sero- muscular (the longer). and extending along midway between the superior and inferior borders of the pylorus — through all the coats. (Fig. 726.) The incision, at first, is about 2 cm. (f inch) long. The right index-finger is then inserted through 986 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. this opening and passed on into the pylorus, to determine the degree of con- striction and the thickness of the wall, by palpation between the internal finger and external thumb. The incision is now continued through the strictured portion on into the healthy duodenum and stomach — and is gener- ally about 5 cm. (2 inches) long. (4) By means of wound-hooks, or silk retractors, inserted at the center of either side of each lip, draw upon the margins until the longitudinal wound first becomes diamond-shaped, and then transverse — and while held in this last position the sutures are applied. (5) The mucous membrane may be first sutured with continuous silk suturing, or sutures may pass through all the coats. (Figs. 727 and 728.) Interrupted silk Lembert sutures are then introduced through serous and muscular coats. If indicated, a third continuous Lembert suture may be applied. (6) The parts are then thoroughly cleaned and dropped back into position — and the abdomen closed in the usual manner. Comment. — (I) In a very dense, thick wall, a small diamond-shaped excision may be made — to aid in the approximation of the two edges. (2) Suturing may be done as above, but over an absorbable tube. (3) The site of operation should be clamped on both sides. Fig. 728.— Pyloroplasty (Heinecke-Mikulicz Operation): — III. — The sutures are tied and the former contracted site is now shown to be of larger caliber than normal. DIVULSION OF PYLORIC ORIFICE OF STOMACH. LORETA'S OPERATION. Description. — The cavity of the stomach having been entered by gastro- tomy, the constricted pyloric orifice is dilated either by finger or instrument. Sometimes resorted to in non-malignant stricture. Preparation—Position— Landmarks— Incision.— As for Gastrotomy by median incision. Operation. — (1) Median abdominal section is done — and the abdominal walls retracted. (2) The pylorus is isolated and brought as well into the wound as possible— exactly as in Pyloroplasty. The region is well packed GASTRO-DUODENOSTOMY. 987 off with gauze. (3) Incise the anterior stomach-wall vertically, at a distance of about 5 cm. (2 inches) from the pylorus, and midway between the upper and lower curvatures — at first, to an extent only sufficient to admit the index- finger snugly. (4) The right index-finger is immediately inserted through the opening and is made to slowly work its way through the pyloric stricture — - while the region is steadied from without by the left hand. Should the stricture be found too tight for the tip of the finger, a dilating instrument may be used first — to be followed by the finger. When the stricture is en- larged sufficiently to accommodate one finger, the stomach wound is enlarged with a blunt bistoury, without withdrawing the first finger, and the middle finger introduced alongside of it. The fingers in the stomach wound prevent any considerable hemorrhage — the vertical direction of the gastric incision also aiding in this respect. Even a third finger may be introduced. (5) The object having been accomplished — the fingers are withdrawn — and the hemorrhage from the stomach wound is controlled by clamping and twisting, or by gut-ligaturing. (6) The wound in the stomach is then sutured in the ordinary manner — or as in Pyloroplasty. (7) The abdominal wound is closed in the usual fashion. Comment. — (i) Incision into the stomach may be parallel with its length and just to the left of the pylorus — as in Pyloroplasty. (2) Loreta inserted both index-fingers and stretched in opposite directions. (3) In Halm's operation, no opening is made into the stomach — the neighboring stomach- wall is simply invaginated into the pylorus upon the end of the finger. DILATATION OF CARDIAC ORIFICE OF STOMACH. See under Retrograde Dilatation of Esophagus, page 716. GASTRODUODENOSTOMY. finney's operation. Description. — The establishment of an artificial outlet from stomach to duodenum. The operation consists, briefly, in the making of an extended Heinecke-Alikulicz incision in the gastro-duodenum and suturing the margins of the incision in a special manner — after mobilizing the upper portion of the duodenum. The technic is used for the enlargement of the pyloric outlet of the stomach in non-malignant cases. Preparation — Position — Landmarks — Incision. — As for gastrotomy by median incision (page 952). Operation. — In the following description the interpretation of the opera- tion as given by Gould will be largely followed. Having exposed the gastro- duodenal region, mobilization of the upper portion of the duodenum is accom- plished. To emote from Kocher: — "To free the duodenum in this way it is necessary to divide the parietal peritoneum to the right of the descending part of the duodenum. The membrane is divided vertically over the front of the right kidney, a little to the left of the descending limb of the hepatic flexure of the colon. We recommend that this delicate layer of the parietal peritoneum be divided with the knife two finger-breadths to the right of and parallel to the second part of the duodenum, so that the peritoneum covering the anterior surface of the duodenum may not be injured, as would be the case were the peritoneum simply torn through. If the divided peritoneum adjacent to the 9 8S OPERATIONS UPON THE ABDOM1NO-PELVIC REGION. Fig. 729. — Gastroduodenostomy — Finney's Operation: — I. — Showing the approxima- tion of stomach and duodenum by means of traction-sutures, preparatorily to the placing of the sutures. Fig. 730. — Gastroduodenostomy — Finney's Operation: — II. — The posterior layer of seromuscular suturing is shown — and the dotted line indicates the position of the incision through the walls of the stomach and duodenum. GASTRO-DUODENOSTOMY. 9S9 second part of the duodenum be grasped and pulled forward, the fingers can be introduced behind the duodenum so as to raise it from the vertebral column, the vena cava, and the aorta. By the above manipulations the second part of the duodenum is rendered so movable that it can easily be brought up to the anterior surface of the pyloric portion of the stomach above the greater curva- ture." After this freeing, the duodenum and stomach are clamped in the following manner (in Finney's original description they were held in contact by traction sutures, Figs. 729 and 730); — a longitudinal fold of about 6 cm. (2J inches) of the anterior aspect of the duodenum is clamped, the inner limb of the clamp passing up to the pyloric sphincter; — a corresponding portion of the anterior wall of the stomach at the lower portion of its pyloric aspect is similarly clamped, the point of the outer limb of the stomach clamp meeting Fig. 731. — Gastro-duodenostomy — Finney's Operation: — III. — The parts are here shown held in contact by clamps, which are applied at the beginning of the operation. The seromuscular line of suturing has been placed. (This is the same stage as the preceding illus- tration, where, less desirably, traction sutures are used.) the point of the inner limb of the intestinal clamp (Fig. 731). When the clamps are clasped and brought together, the gastro-duodenal angle is put upon the stretch — thus controlling hemorrhage and leakage from this area, otherwise difficult to manage. A seromuscular continuous suture is now carried down from the pyloric angle through the aspects of stomach and duodenum in contact — being left long at their angle of separation (Fig. 731). A U-shaped incision is next made into the lumen of stomach and intestine, directly over the center of each clamp, and continuous with each other around the gastro- duodenal angle (Fig. 731). The protruding mucous membrane, especially that of the stomach, is trimmed off even with the seromuscular margins of the openings. The incised edges of stomach and intestine are now sutured 990 OPERATIONS UPOxN THE AHDOM1NO-PELVIC REGION. Fig. 732. — Gastro-dcodenostomy — Finney's Operation: — IV. — The posterior layer of the seromuscular suture is shown — and part of the posterior layer of the through-and-through suturing is seen. Fig- 733- — Gastro-duodenostomy — Finney's Operation: — V. — The operation completed. PYLORECTOMY FOLLOWED BY GASTROJEJUNOSTOMY. 991 together with an overhand running stitch of all coats — beginning with the posterior lips and ending with the anterior, knotting the suture where the return-stitch begins, the suture ending at the pyloric angle, where it began (Fig. 732). If the parts are too tense to enable this stitch to be completed otherwise, the clamps are relaxed before its last portion is completed. Finney uses mattress sutures, placed prior to incising, to close in the anterior lips. The clamps are now taken off and the continuous seromuscular suture, already begun upon the posterior aspect, is now continued around the anterior aspect of the wound (Fig. 733). Comment. — The normal size of the pyloric outlet should be calculated for, or a slight overcorrection, in planning the length of the incision — which Finney makes about 10 cm. (3 inches). PYLORECTOMY IN GENERAL. Pylorectomy consists in the excision of the pylorus, together with as much of the stomach and duodenum as may be necessary. Generally resorted to in cases of malignant growth of the pyloric end of the stomach. The operation is sometimes called partial gastrectomy, especially where a considerable portion of the stomach is removed. After all pylorectomies an additional operation is always necessary, uniting the lower intestinal tract with the stomach. The cut end of the duodenum is the part generally united to some part of the stomach — though the cut end of the duodenum may be closed by suture and the jejunum united. The anastomosis may be by simple suturing or by some form of mechanical device. PYLORECTOMY FOLLOWED BY INDEPENDENT GASTRO-JE JUNOSTOMY. MAYo'S OPERATION. Description. — The operation consists of the excision of more or less of the pyloric end of the stomach — followed by the closure of the proximal end of the duodenum and the making of an independent posterior gastrojejunos- tomy. The operation is, practically, a partial gastrectomy — and is resorted to for malignant disease of the gastro-duodenum. The writings of William J. Mayo will be here largely followed. Preparation — Position — Landmarks. — As for gastrotomy by median incision, page 952. Incision. — Preliminarily, a limited incision is made in the median line, midway between ensiform cartilage and umbilicus, for exploration — and nothing more is done if the case be inoperable — the abdomen being closed with some insoluble suture to expedite convalescence. Otherwise this incision is enlarged to the extent of 10 to 12.5 cm. (4 to 5 inches). Operation. — (i) Having opened the abdomen, the liver is retracted upward, the stomach depressed, and the structures in the neighborhood of the pylorus and duodenum exposed. (2) The four arteries which supply the gastro-duodenum are controlled early in the operation, so as to minimize the hemorrhage. The gastric is doubly ligated and divided about 2.5 cm. (1 inch) below the cardiac orifice, where it passes to the lesser curvature. The gastro- hepatic omentum is doubly ligated and divided as far as necessary (from the site of ligation of the gastric artery to the structures in the free border of the 992 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. omentum), the division being made close to the liver and leaving the greater portion of the structure adherent to the stomach. The lesser peritoneal cavity is thus opened up and the pyloric end of the stomach mobilized, together with the tumor. The entire region is well protected with gauze packing. The pyloric artery is now doubly tied and ligated near the pylorus — and the first part of the duodenum freed for 3 or 4 cm. (i| to ij inches), prepara- tory to its later resection. (3) Having entered the lesser omental cavity, and guided by a finger beneath the pylorus, raise the gastro-colic omentum from the transverse mesocolon and thus safely ligate the right gastro-epiploic Fig. 734. — Pylorectomy, followed by Independent Gastrojejunostomy — Mayo's Operation: — I. — The duodenum is doubly clamped and divided and the distal end sutured. The lesser end of the stomach is doubly clamped, ready to be divided. The gastro- hepatic and gastro-colic omenta have been tied off and divided, the division being beyond the region of the lymph-nodes, which are left attached to the excised portion. The ligature of the gastro-duoden- alis and gastro-epiploica sinistra arteries, along the lesser and greater curvatures of the stomach, which are approached by bringing the incisions through the omenta toward the borders of the stomach, are not shown here (see Fig. 735). artery (or its parent vessel, the gastro-duodenal) . Thence doubly ligate and divide progressively the gastro-colic omentum distal to the lymphatic glands and vessels, up to the indicated point on the greater curvature, where the left gastro-epiploic vessels are ligated. In ligating off the omenta the line of ligatures should be so placed that the lymph-nodes will be left with the part of the gastro-duodenum to come away. Avoid tying or cutting the middle colic artery in entering the lesser omental cavity by separating it from the mesocolon — as it is generally the entire supply of the transverse colon. (4) The duodenum is divided by actual cautery between two clamps (Fig. 734), PYLORECTOMY FOLLOWED BY GASTROJEJUNOSTOMY. 993 leaving a stump 3 mm. (| inch) long — through the end of which a running catgut suture is placed before the clamp is removed, and drawn tight as the clamp comes away. This stump is then inverted by a silk or linen seromuscu- lar purse-string suture placed around the duodenal stump, 2 cm. (f inch) below its end. A Kocher stomach-clamp, guarded with rubber tubing, clamps the stomach from the ligated gastric artery at Mikulicz's point of election, obliquely to Hartmann's point of election at the greater curvature. A second stomach-clamp is applied to the pyloric aspect of the first clamp, to guard against leakage at the time of division. The stomach is now divided through both of its walls by means of the actual cautery, 3 mm. (\ inch) from the holding clamp — the severed part of the cardiac end being caught, as Fig- 735- — PYLORECTOMY, FOLLOWED BY INDEPENDENT GASTROJEJUNOSTOMY : — MAYO'S Operation: — II. — The excised portion has been removed, showing the corresponding portions of the gastro-hepatic and gastro-colic omenta tied off. The duodenum is closed. All of the through-and-through suturing of the stomach has been completed — and most of the seromus- cular line of suturing. The arteries of the lesser and greater curvatures of the stomach are tied. The outline of the independent posterior gastro-enterostomy is seen through the stomach. divided, by catch forceps, to prevent retraction within the bite of the forceps. The pyloric end of the stomach, with tumor, is now removed (Fig. 735). The severed edges of the cardiac end of the stomach are sutured together, from greater to lesser curvature, with catgut button-hole suture through all the coats of both anterior and posterior walls — "and in the same manner directly back, and tied at the starting-point, thus preventing hemorrhage as well as leakage." On removing the clamp any bleeding point is ligated. A seromuscular suture, of the right-angle Cushing type, is placed beyond the preceding stitch, thus burying it in and completing the approximation. It should be so placed as to avoid tension. (5) Having completely closed the ends of the duodenum and of the stomach, an independent gastrojejunostomy is done with a loop of the jejunum. The parts are thus brought easily into 994 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. apposition and tension and handling of traumatized viscera are avoided, as would be apt to be the case in the older forms of directly uniting the divided end of the duodenum to the lower portion of the sutured edges of the stomach, or to its anterior or posterior wall. The gastrojejunostomy is done in the usual manner (page 974, and Figs. 716 and 717). Either the posterior or anterior operation can be done, and the union may be by simple suturing or by some mechanical device. Mayo prefers posterior gastrojejunostomy by simple suturing, if the patient's condition be good and the operation a prompt one — and an anterior gastrojejunostomy by the Murphy button if the condi- tion be poor. (6) The abdomen is closed in the usual manner. After-treatment. — The patient's head and shoulders are raised by four or five pillows. Rectal alimentation is used. After twelve hours, hot water is given by mouth in half-ounce doses, increased to an ounce every hour. After thirty-six hours, careful feeding with fluid food is used. Comment. — (1) Stress is laid upon the division of viscera and omenta with the actual cautery — as means of avoiding the dissemination of cancer cells throughout the abdomen. (2) Careful gauze packing is used throughout — a deeper layer, which is not changed from beginning to end of operation, to further aid in preventing dissemination — and a superficial layer, which is being constantly changed. (3) Cigarette drains are used when much soiling has occurred, the drain coming from just above the transverse colon and emerging at the lower angle of the wound. PYLORECTOMY FOLLOWED BY END-IN-SIDE POSTERIOR GASTRO- DUODENOSTOMY. kocher's method. Description. — This operation consists in the excision of the pylorus, with as much of the adjacent stomach and duodenum as indicated — followed by a complete closure, by invaginating and suturing, of the pyloric end of the stomach — and an approximation of the cut end of the duodenum to the posterior aspect of the stomach near its excised end. A less desirable form of pylorectomy than the Mayo technic. Preparation — Position — Landmarks. — As for gastrotomy by median incision. Incision. — About 10 to 15 cm. (4 to 6 inches) in length — beginning a short distance below the ensiform cartilage, and extending as far as necessary below the umbilicus, in the median line. Operation. — (1) Perform ordinary median abdominal section — excise the umbilicus — control hemorrhage — retract lips of wound. Bring into the wound the involved parts, lifting them as far out of the abdominal cavity as possible. (2) Ligate off the lesser and greater omenta for an extent cor- responding to the area involved and sever with scissors from the stomach and duodenum, near the visceral borders. Ligate all bleeding vessels with gut. Isolate the parts from which the omenta have been separated — and protect, with gauze packing, the underlying and adjacent parts from the stomach and intestinal contents. (Fig. 736.) (3) A clamp is placed upon the duodenum just distal to the part to be removed — and a second clamp about 2.5 cm. (1 inch) still distal to the first, and parallel with it, the handles of the clamps lying in opposite directions. Two clamps are now placed across the pyloric end of the stomach, in the same line, on the cardiac side of the growth — one being placed from the lesser and one from the greater curvatures, PYLORECTOMY, KOCHER'S OPERATION. 995 their ends overlapping. (4) The duodenum is now cut through between its two clamp — the edges of the distal end being disinfected with 1 : 1000 bichloride, and turned over the right edge of the wound — and the proximal end wrapped in gauze and lifted out of the wound. (5) An assistant, using his forefingers and thumbs (or first and second fingers) as a second pair of clamps, seizes the stomach from above and below, a short distance to the cardiac side of the stomach clamps — and compresses the stomach firmly, gauze being placed to catch any leakage from the stomach. The stomach is now cut through between the two stomach clamps — and the growth Fig. 736. — Pylorectomy, followed by Posterior Gastro-duodenostomy (Kocher's Operation) : — Pylorus, with involved malignant growth tc be removed; Lesser omentum ligated off; Greater omentum ligated off; Clamps placed on either side of line of future incision through stomach; Clamps similarly placed upon duodenum. (Modified from Kocher.) removed — and all bleeding vessels ligated with gut. (6) The cut edges of the stomach are now first sutured with continuous silk suture, passing through ail three coats in an overhand, or whipping fashion — approximating the anterior and posterior walls. All projecting mucous membrane is disinfected with bichloride. This line of primary suturing is then invaginated by a second line of continuous silk Lembert sutures of serous and muscular coats — thus burying in the first line and extending a short distance beyond its ends. (Fig. 737.) (7) The assistant, holding the stomach in both hands, so manipu- lates it as to direct its posterior wall to the front and to the right, compressing 996 OPE RATIONS UPON THE ABDOMINO-PELVIC REGION. the duodenum between the stomach and right edge of the abdominal wound and thus (losing the lumen of the gut. While the stomach is thus held, the posterior aspect of the duodenum (still in the grasp of the forceps) is applied to the posterior wall of the stomach (the serous surfaces of both being in contact). (Fig. 737.) (8) A continuous posterior serous suture of silk is now placed between the serous and muscular coats of the posterior wall of the stomach and the posterior aspect of the duodenum thus approximated, from the upper to the lower border of the intestine — both ends of the suture being left long after knotting, and the needle threaded to the lower one. Fig- 737- — Pylorectomy, followed by Posterior Gastro-duodenostomy (Kocher's Operatiom): — II. — Clamp holding stomach forward while duodenum is being sutured to its posterior aspect; Line of continuous Lembert sutures uniting outer coats of stomach and duo- denum; Line of continuous overhand sutures through all coats, uniting their edges. (Modified from Kocher.) These sutures in the intestine are placed sufficiently far from its extreme end to leave the circumference of the extreme end of the gut free for suturing to the stomach opening. The hitherto retained forceps are undamped from the duodenum — (unless a pair should be kept on further down) — and what- ever leakage occurs is caught upon gauze — the lumen of the gut is then disin- fected—and the vessels are gut-ligatured. (9) The posterior stomach-wall is now incised vertically about 1.2 cm. (\ inch) from the posterior serous suture just inserted, and for a distance equal to the breadth of the duodenum. Bleeding vessels are gut-ligatured. (10) A continuous silk ligature is now passed, upon curved needle in holder, uniting the edges of the cut end of the duodenum to the edges of the stomach opening, passing through all the coats of both viscera, around the entire circumference. This line of suturing is PYLORECTOMY, BILLROTH'S OPERATION. 997 chiefly for strength. If preferred, two rows ma}" be used — one of the mucous membrane — and one of the serous and muscular coats, (n) Taking up now the still threaded end of the posterior serous suture, that line of con- tinuous suturing is continued around the anterior aspect, forming the anterior serous suture, passing through the serous and muscular coats of the intestine and stomach, until the surfaces throughout the entire circumference are approximated, and is then tied to the opposite free end of the suture. (12) The parts are then thoroughly cleaned and disinfected and dropped back into place. (13) Prior to the return of the parts to the abdomen, the free edges of the lesser and greater omenta should be gut-ligatured to the upper and lower margins, respectively, of stomach and intestine at the site of operation. (14) The abdominal wound is then closed as in ordinary median abdominal sec- tion. Comment. — (i) The omenta can be ligated off conveniently with Cleve- land's ligature-carrier, or an aneurism-needle. (2) The division of the stomach and intestines is usually made with scissors. (3) A rather long abdominal wound may be needed to enable sufficient lateral displacement to the right to expose the gastroduodenal site sufficiently for the necessary technique, upon the accuracy of the details of winch so much depends. (4) The Mur- phy button may be used for the approximation, after the excision of the growth by the above method. (5) A second pair of stomach clamps may be used instead of the fingers of an assistant. PYLORECTOMY FOLLOWED BY END-TO-END GASTROENTEROSTOMY. BILLROTH'* OPERATIOX. Description. — Following the excision of the pylorus, together with the adjacent involved portions of the stomach and duodenum, the large opening left in the pvloric end of the stomach having been lessened by suturing to the size of the lumen of the duodenum, the two viscera are anastomosed by simple suturing, end to end. This operation is not so desirable as either of the preceding. Preparation — Position. — As for Gastrotomy. Landmarks. — Right rectus muscle. Incision. — Vertical, in the outer third of the right rectus, beginning a short distance beneath the costal arch and extending downward to or below the level of the umbilicus. Various incisions have been used; — A median incision, which does not so readily expose the parts; — An obliquely transverse incision 10 to 12.5 cm. (4 to 5 inches) long, having one-third of its length to the left, and two-thirds to the right of the linea alba, and crossing that line obliquely downward from left to right, between the xiphoid cartilage and umbilicus, Billroth's original line, which necessitates much transverse division of muscle, though better exposing the parts. Operation. — (1) Expose the peritoneal cavity in the usual manner of abdominal section by vertical incision through the outer third of the rectus muscle — control hemorrhage and retract the margins of the wound. (2) The site of the operation is carefully located and packed off with gauze — slight adhesions being broken down by blunt dissection — and the parts brought as well forward into the wound as possible. (3) The lesser and greater omenta are ligated off along the area corresponding with the parts to be removed — by gut-ligature carried by an aneurism-needle, or Cleveland ligature-carrier — along the upper and lower borders of the pyloric end of the stomach and duo- OOS OPERATIONS UPON THE ABDOMINO-PELVIC REGION. denum. (4) As soon as freed from omental attachment, the contiguous por- tions of the stomach and intestine are to be packed off with especial care from the general cavity and adjacent structures with gauze. Two clamps are now placed upon the duodenum, parallel with and about 2 cm. (f inches) apart, on Fig. 73S.— Pylorectomv (Billroth's Operation) : — I. A, Malignant pylorus excised; B, Free end of duodenum; C, Portion of stomach-opening in excess being closed by interrupted sutures of all coats, followed by interrupted Lemberts of the outer coats ; D, Remaining portion of stomach-opening to be sutured to the duodenum. either side of the line to be incised. Two are similarly placed upon the stomach about 2.5 cm. (1 inch) apart. The lines of incision are so calculated that they will be parallel. (5) The duodenum is first divided between the clamps, with scissors. All leakage is carefully caught and the interior of the free end of the gut cleaned. The stomach is then similarly dealt with. The excised portion is now removed. The free ends of the stomach and intestine are brought well forward and abundant packing placed posteriorly. The clamps are retained as convenient means of aiding in the manipulation of the parts. (6) In order to provide a lumen of stomach at the pyloric end which will correspond with that of the duodenum, all that portion of the cut edges of the stomach in excess of the required lumen is closed. This is done by a continuous overhand silk suture including all the coats of both edges of the stomach. It begins at the lesser curvature and is carried downward the required distance — leaving un- sutured, next to the greater curvature, a lumen of stomach which will corre- spond in size with the opposite lumen of duodenum. A line of continuous or interrupted chromic gut Lembert sutures immediately buries in this first line of silk suturing, passing through the serous and muscular coats of the stomach, on either side of the first suture line and thus invaginating it. (Fig. 738.) (7) The free edges of the openings in the duodenum and stomach are then approximated by an assistant who holds them in apposition by means of the clamps. By means of a continuous or interrupted silk suture including all the coats of intestine and stomach, the duodenum is sutured to the remaining opening in the stomach — the parts being so turned, as the suturing progresses, as to present the entire circumference. This line of sutures is chiefly for strength. (8) The line of continuous circular suturing just applied is im- PARTIAL GASTRECTOMY. 999 mediately followed by a second tier of interrupted silk Lembert sutures passing through serous and muscular coats of both viscera, thereby burying in by in- vagination the first tier. This second line of suturing is chiefly for occlusion. (Fig. 730.) (9) The clamps being relaxed and all parts being thoroughly Fig. 739. — Pylorectomy (Billroth"s Operation) :— II. A, Upper portion of stomach-opening sutured ; B, Interrupted sutures of all coats uniting duodenum to lower portion of stomach-opening ; C, Interrupted Lemberts uniting outer coats. The greater curvature of stomach is here restored. cleansed, the lesser and greater omenta, which had been previously ligated and detached, are now resutured with gut to the upper and lower borders of the attached stomach and duodenum. (10) The parts are then dropped back into place and the abdomen closed. Comment. — (1) The above is the description of Billroth's operation in the main — the line of incision, the manipulation of the parts, and especially the method of suturing being simplified. (2) If indicated, after excision of the pyloric end of the stomach, the large opening may be closed to fit the duodenum by being sutured partly from the lesser curvature downward and partly from the greater curvature upward. Again, the junction may be made continuous with the lesser curvature — though the stomach is better emptied when made continuous with the greater curvature. (3) Murphy's button may be used in accomplishing the approximation. Still other forms of operation are the following; — Pylorectomy with posterior gastrojejunostomy by means of Murphy's button: — Posterior gastrojejunostomy at first sitting, followed by pylorectomy at second sitting (Czerny). PARTIAL GASTRECTOMY (OF THE MEDIAN PORTION). Description. — The median portion of the stomach is sometimes excised for stricture or malignancy. The free edges of remaining portions are then united end-to-end. Any excess in size, upon the part of the cardiac end, is provided for by special suturing. Preparation — Position — Landmarks — Incision. — As for gastrotomy by median incision. IOOO OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Operation. — The stomach is brought into the held as in the last operation. The arteries along the upper and lower curvatures of the stomach are ligated (Fig. 740) — the gastric artery along the lesser and the epiploic arteries along the greater curvature — so planning the double ligatures as to leave satisfactory blood supply to the severed edges. The gastro-hepatic and gastro-colic omenta are ligated off in sections, corresponding with the portion of the stomach to be excised, after which the lesser peritoneal cavity and the adjacent parts are protected with gauze packing. Double clamps are now placed on each side of the area to be excised, about 2.5 cm. (1 inch) apart, and allowing ample margin of healthy tissue between the growth and themselves. The involved portion of stomach is now cut away with scissors passing through Fig. 740. — Partial Gastrectomy (of the Median Portion):— I. — The cardiac and pyloric aspects of the stomach are doubly clamped, ready to be divided. The gastro-hepatic and gastro-colic omenta are ligated and divided. The arteries of the lesser and greater curva- tures are doubly ligated. all the coats and travelling between each set of clamps — especial care being used to guard the field from the inevitable leak which follows opening up the mucous cavity of the organ. The free edges of the incised portions are now approximated by means of the clamps, and held in a convenient position for suturing (Fig. 741). A continuous silk or linen overhand suture of all the coats is first made, and applied while the clamps are tilted away from the suture-line, knotting the suture at intervals, to avoid the purse-string effect. Outside of these a second row of suturing is placed, of the seromuscular type, carried continuously or interruptedly, and consisting of silk or linen. Where the calibers of the two portions are about alike, no great difficulty is experienced in adjusting them to each other. Where a disparity exists (the cardiac end TOTAL GASTRECTOMY, IOOI usually being larger than the pyloric end) the edges of the excess caliber are made to overlap on the line of the greater curvature of the stomach — the smaller caliber being applied to and sutured into as much of the larger caliber as is indicated. The omental incisions are sutured with catgut. Comment. — The greater curvature may be restored (insuring a freer emptying of the stomach, probably, by uniting the parts in the same manner as in Billroth's pylorectomy (page 997, and Figs. 73S and 739). It is well to leave as much of the cardiac end of the stomach as possible — to increase Fig. 741. — Partial Gastrectomy (of the Median Portion): — II. — The median excised portion of the stomach has been removed and the incised edges of the cardiac and pyloric aspects are approximated by means of the clamps. The posterior layer cf the seromuscular suture has been placed — its free end showing. The posterior layer of the through-and-through suture has also been placed — and one end left free. The redundant portion of the cardiac aspect of the stomach is sutured separately, by through-and-through and seromuscular sutures, until its caliber corresponds with that of the pyloric aspect. the ease of approximating the duodenum — excess of cardiac end being sutured down to fit the duodenum, as in gastro-duodenostomy. (1) Displacement of the left lobe of the liver, temporarily, aids in giving room. (2) As the esophagus is more brittle than the stomach, it is well, where possible, to leave enough of the latter for suturing to the duodenum. (3) Brigham, not having sufficient room for simple suturing, united duodenum and esophagus with No. 3 Murphy button, without any subsequent suturing. (4) Delatour used temporary abdominal drainage. TOTAL GASTRECTOMY. Description. — Consists in the total removal of the stomach. Following the removal of the stomach, anastomosis'is at once made between the esophagus 1002 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. and some part of the small intestine. When circumstances permit of suffi- ciently easy approximation of the cut end of the duodenum to the cut end of the esophagus, esophago-duodenostomy is performed. Where this is impossible, the free end of the duodenum is closed, and a loop of the jejunum is anasto- mosed with the esophagus, constituting esophago-jejunostomy. Preparation — Position — Landmarks. — As for Gastrotomy by median incision. Incision. — In the median line, from the xiphoid cartilage to or below the umbilicus. Operation. — (£) Expose the peritoneal cavity — control hemorrhage — re- tract the wound. (2) The stomach and duodenum are brought to view — ad- hesions, if any, being separated by blunt dissection, or divided between double ligatures — and these viscera are then brought as well forward as possible. (3) The lesser (gastro-hepatic) omentum is ligated off with silk near the duo- denum and lesser curvature of the stomach — beginning at the duodenum and extending toward the esophagus. When 8 to 10 cm. (3 or 4 inches) have been thus ligated, the greater omentum is similarly ligated off, beginning at the duodenum and following along the greater curvature. After 8 to 10 cm. (3 or 4 inches) of this omentum is ligated, the ligaturing is interrupted here and resumed along the lesser omentum — and thus alternating upon the two omenta, manipulating and rotating the stomach as indicated, both omenta are entirely tied off. (4) The duodenum is now* clamped off with two parallel clamps and divided between them — the adjacent regions having been packed off with gauze. Both free ends are also well protected with gauze (the duodenum being well cleansed) — the clamps being left in situ. (5) The gastro-splenic omen- tum is ligated off and divided — and also the gastro-phrenic omentum. (6) While some tension is being exercised upon the stomach to draw the esophagus downward, a clamp is placed upon the esophagus as high up as possible. An- other esophageal clamp is placed just below the site at which division is to be made. The esophageal end of the stomach is then divided between the clamps, the freed ends being treated as above described, the esophageal end being particularly cleansed and protected. (7) An attempt is then made to ap- proximate the duodenum and esophagus, and if the ends come together without too much tension, they are at once united. If the esophageal end of the stomach (especially when much of the cardiac end is left) be too large, it is sutured down to fit the duodenum (as described under Pylorectomy). In Schlatter's operation, the duodenum was sutured to the esophagus in the fol- lowing manner; — the mucous membrane of the esophagus was united to that of the duodenum by continuous silk suture; — the serous and muscular coats of each viscus were then united by continuous suture; and both of these were followed by a row of Lembert sutures. The clamps are then removed. (8) If the duodenum cannot be made to easily reach the esophagus, the duodenum is closed at its free end and the nearest coil of jejunum is anastomosed to the esophagus (esophago-jejunostomy) — followed, if thought best, by an anasto- mosis of the two coils of jejunum lower down (jejuno-jejunostomy). (9) The omenta are sutured into as nearly a normal position as possible. (10) The viscera are replaced and the abdomen closed. OPERATION FOR GASTRIC ULCER. Description. — The nature of the operation will depend upon the nature and position of the ulcer. According to Welch, the most frequent sites of gastric ulcers are as follows; — Upon the lesser curvature, 36 per cent.; posterior wall, 29 per cent.; pylorus, 12 per cent.; anterior stomach-wall, 8 per cent.; cardiac end, 6 per cent.; fundus, 3 per cent.; greater curvature, 3 per cent. OPERATION FOR GASTRIC ULCER. 1003 According to Brinton, 2 per cent, of those which occur on the posterior wall perforate — 85 per cent, of those on the anterior wall — 40 per cent, of those on the cardia — and 10 per cent, of those at the pylorus. Preparation — Position — Landmarks — Incision. — As for Gastrotomy by median abdominal section. Operation for Perforated Gastric Ulcer. — Having exposed and brought into the field, by median abdominal section, the stomach, and located the ulcer, its treatment will depend upon the local conditions found; — (a) "Where the walls are pliable and the ulcer small; — Invert the edges of the ulcer with interrupted Lembert or Halsted sutures, without excision of its margins, (b) "Where the gastric walls are rigid and thick: — Excise the ulcer elliptically — unite the mucous membrane bv continuous silk suture — then the serous and Fig. 742. — Excision or Gastric Ulcer: — I. — The lesser curvature of the stomach and the area of the ulcer clamped off by two clamps compressing anterior and posterior stomach- walls in a V-shaped fashion. muscular coats with interrupted silk sutures, (c) "Where the edges of the ulcer cannot be brought together: — One of the following methods may be used; Patch with omental graft; Plug with omentum, sewing it in; Suture to a neigh- boring structure; Suture to the abdominal wound and drain; Perform gastro- enterostomy, uniting the incised intestine with the ulcerated stomach-opening (after excising the edges of the latter) ; Drain the ulcer through the abdominal wound, packing with gauze to make sinus between abdominal wound and ulcer. (d) Where the question of possible malignancy may be associated with a gastric ulcer, the entire suspicious area should be widely excised. In those cases where the ulcer is situated upon the lesser curvature, which is their most usual site, the area is excised by a V-shaped incision, with the limbs of the V abutting upon the lesser curvature (Fig. 742). The gastric artery is ioo4 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. doubly ligated, and divided and the necessary extent of gastro-hepatic omentum is tied off in sections. The site is controlled by two clamps placed in a V-shaped fashion — their tips meeting at the apex of the V- The area is excised with scissors, leaving a free margin. Owing to the inaccessibility of the posterior margins these arc besl sutured with Connell stitches (page 864, Fig. 614). These may be placed far enough back from the free edges as to leave room *1 Swo' »% Fig. 743. — Excision of Gastric Ulcer:— II.— The margins of the stomach, left by the excision, approximated by clamps — with the first tier of suturing (through-and-through) shown. for a continuous overhand stitch of all the layers of both margins placed within the outlying interrupted through-and-through Connell stitches. The anterior edges of the wound are closed, first by an overhand continuous stitch of all the layers (Fig. 743), followed by a continuous seromuscular suture. Comment. — Non-perforating ulcer may also be treated by excision and gastrorrhaphy. Also see Enterorrhaphy for Wounds of the Intestine, page 848. VII. THE LIVER. SURGICAL ANATOMY. Description. — Presents three surfaces (superior, or phrenic; — inferior, or visceral; — posterior) : — two extremities (right and left) : — one border (anterior). Its average measurements are transversely, 28 cm. (11 inches) — antero-pos- teriorly, 20 cm. (8 inches) — vertically, 6 cm. (2^ inches). Position. — Occupies parts of right hypochondriac, epigastric, and left hypochondriac regions; — situated below diaphragm — above stomach, duo- denum, transverse colon, and small intestine — and in front of right false ribs (tenth, eleventh, and twelfth). SURGICAL ANATOMY. 1005 Fissures. — Left longitudinal fissure: — Anterior part forms umbilical fissure (for umbilical vein in fetus, and for its remains, the round ligament, in adult) ; — Posterior part forms fissure of ductus venosus. Right longitudinal fissure : — Anterior part, forms fossa for gall-bladder; — Posterior part, fossa for vena cava. Transverse fissure : — Transmits hepatic artery, portal vein, hepatic duct, nerves, lymphatics, and connective tissue. Lobes. — Right, Left, Quadrate, Caudate, Spigelian. Ligaments and Fixations of Liver. — (i) Coronary: — from posterior surface of liver to diaphragm. Formed of two layers of reflected parietal peritoneum. (2) Right lateral ligament : — from right lobe of liver to back of diaphragm. Lateral continuation of coronary ligament. (3) Left lateral ligament : — from left lobe of liver to diaphragm anterior to esophagus. Lat- eral continuation of coronary ligament. Note: — Middle portion of coronary ligament has its anterior layer furnished by greater peritoneal sac, its posterior layer by lesser sac; Right lateral ligament has both layers from greater sac; Left lateral ligament has both layers from greater sac. (4) Longitudinal (broad or suspensory) ligament : — Passes antero-posteriorly upon upper and anterior portion of liver. Posteriorly and superiorly it is connected with the coronary ligament. Anteriorly and superiorly it is connected with the posterior sheath of the right rectus muscle, up to the umbilicus — and thence to under surface of diaphragm, diverging to either side. Free anterior margin extends from interlobular notch to transverse fissure — containing round liga- ment (remains of fetal umbilical vein). Inferiorly it extends along the superior surface of the liver, from before backward. Formed by portions of peritoneum covering superior surface of liver — one layer passing over left lobe, the other over right, and meeting at longitudinal ligament. (5) Round ligament : — Remains of umbilical vein — in free margin of longitudinal ligament, extending from left longitudinal fissure to umbilicus. (6) Lesser omentum (Gastro- hepatic omentum) : — may be considered a ligament of liver, consisting of following parts; — (a) Lig. Hepato-gastricum — from borders of transverse fissure to upper curvature of stomach; — (b) Lig. Hepato-duodenale — that part embracing superior curvature of duodenum, and enclosing following structures; common bile-duct, portal vein, hepatic artery, lymphatics and nerves; — (c) Lig. Hepato-colicum — that part passing over duodenum to transverse colon; — (d) Lig. Hepato-renale — that part from inferior surface of right lobe of liver (near gall-bladder and vena cava, and posterior to foramen of Winslow), to upper surface of right kidney; — (e) Lig. Cystico-duodenale — that part from gall-bladder to duodenum. Xotc: — Fusion of upper surface of liver to dia- phragm forms a strong fixation of liver. Peritoneal Covering. — Only portions of liver uncovered by peritoneum are; transverse fissure, fossa of gall-bladder, and postero-superior aspect of right lobe (where fused to diaphragm). Relations.— (1) Antero-posteriorly: — diaphragm (whole of right arch and part of left — which separates liver from right and left lungs and peri- cardium) ; abdominal wall; six or seven lower right ribs (seventh to eleventh, according to Morris) ; fifth to ninth right costal cartilages (sixth to ninth, ac- cording to Morris). (2) Inferiorly: — stomach (cardiac and pyloric ends, lesser curvature, and part of anterior surface) ; duodenum (superior curve and descending parts); gall-bladder and cystic duct; portal vessels; right kidney and capsule; colon (hepatic flexion). (3) Posteriorly: — diaphragm and crura; tenth and eleventh dorsal vertebrae; tenth and eleventh ribs; esophagus; aorta; vena cava; right suprarenal capsule; thoracic duct. Vessels of Liver. — Hepatic artery (of cceliac axis), artery of supply; 1006 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Portal vein, bringing blood from stomach, intestines, pancreas, and spleen; Hepatic veins, emptying blood of liver into vena cava; Hepatic duct, formed at transverse fissure. Lymphatics. — Deep set; accompany portal vein, hepatic artery, and duct and join superficial set. Superficial set; empty into (a) mediastinal glands; (b) sometimes into thoracic duct; (c) glands of small omentum; (d) lumbar glands; (e) glands of esophagus and lesser curvature of stomach. Nerves. — From left pneumogastric and cceliac plexus. Structures at Transverse Fissure. — (a) Hepatic artery, portal vein, and numerous nerves enter: — (b) Hepatic duct and some lymphatics leave: — Note: the hepatic veins do not emerge here, but pass backward into the vena cava. Order of Structures at Transverse Fissure. — From before backward; hepatic duct, hepatic artery, portal vein. Order of Structures in Gastro-hepatic Omentum. — Common bile-duct, to right; hepatic artery, to left; portal vein, behind and between other two. SURFACE FORM AND LANDMARKS. The liver occupies parts of right hypochondriac, epigastric, and left hypo- chondriac regions — filling all of right and part of left diaphragmatic arches — the diaphragm forming dome of cavity in which liver rests and passing down laterally between ribs and liver. Upper limit of right lobe — is along line from right fifth chondro-sternal articulation extending horizontally outward to a point about 2.5 cm. (1 inch) below the right nipple — thence downward to seventh rib at lateral aspect of chest. Upper limit of left lobe — along line from right fifth chondro-sternal artic- ulation extending across sternum slightly downward to a point about 5 cm. (2 inches) to left of gladiolus, on a level with left sixth costal cartilage. Lower limit of right margin — corresponds with line passing from behind forward about 1.2 cm. (J inch) below the lower margin of the right thorax to right ninth costal cartilage — thence obliquely across the subcostal angle to left eighth costal cartilage. Lower limit of left margin — represented by a curved line, with outward con- vexity, from left eighth costal cartilage to a point 5 cm. (2 inches) to left of gladiolus and on a level with left sixth costal cartilage. Lower border of liver in middle line — about half-way between xiphoid cartilage and umbilicus. Convex surface of liver, on right side — corresponds with seventh to eleventh ribs, inclusive — and, in front, with ensiform cartilage and sixth to ninth costal cartilages, inclusive. Heart descends to left fifth interspace. Right lung descends to superior margin of sixth rib, in the nipple-line. Note. — Authorities differ considerably upon the relations of the liver to the thoracic wall. GENERAL SURGICAL CONSIDERATIONS. The liver may be approached either through the abdominal cavity, the more usual route — constituting a transperitoneal operation; — or through the thoracic cavity — in which latter case the operation may be either transpleural or subpleural, while, at the same time, intrathoracic. While desirable that all incisions should be in intramuscular cleavage lines THE LIVER— GENERAL SURGICAL CONSIDERATIONS. 1007 as far as possible, yet, as hernia of the upper abdominal wall is less frequent than of the lower, incisions about the liver and gall-bladder, therefore, often violate this desirable rule. The two most general methods of transperitoneal approach are the follow- ing: — (a) Bv incision parallel with and about 1.2 to 2 cm. (h to f inches) below the right costal arch, with its center over the indicated site; — (b) By incision in the right linea semilunaris (which runs down from the ninth rib to the pubic spine) — or further outward, from the tenth costal cartilage — passing from the lower border of the right costal arch as far down as necessary. Oblique subcostal incision: — gives better approach to the subhepatic space — and especially to the right end of the liver. It may be extended upward or downward obliquelv, parallel with the costal arch. It will cross the external oblique and transversalis at a right angle, and about coincide with the fibers of the internal oblique. It affords a somewhat better chance to preserve some of the abdominal nerves. Anterior vertical incision: — gives best access to gall-bladder and ducts — together with a very good exposure of the liver. A vertical incision in the right linea semilunaris — or more externally, from the tenth costal cartilage — can be increased directlv downward to give room. Its lower end may also be ex- tended transversely, or obliquely, toward the median line — giving an angular flap. A continuation of the original incision gives a very extensive approach to the abdominal cavity — and even the pelvis. The simple vertical incision will cross the external and internal oblique muscles obliquely, and the trans- versalis at a right angle — and will cross the abdominal nerves at a right angle. In operating to expose the liver, it will often be found, when the liver is reached, that its serous surface is adherent to the parietal peritoneum — and, therefore, that its substance can be entered without involving the general peritoneal cavity. As adjuncts to the satisfactory exposure of these sites, the following man- oeuvres are helpful: — (a) the reversed Trendelenburg position — (b) firm up- ward traction upon the liver and right costal arch — (c) passage of the left index through the foramen of Winslow and the left thumb over the lesser omentum, thus embracing that structure between the digits. When the round ligament is encountered descending to the umbilicus and is severed, it should be sutured at the end of the operation. Standing, the lower border of the liver is about 1.2 to 2.3 cm. (\ to \ inch) below the costal cartilages; — reclining, the lower border recedes until about 2.5 cm. (1 inch) above the lower costal cartilages. This change in position, and change during respiration, must, therefore, be allowed for in suturing the liver to the parietes. Anteriorly, the gastro-diaphragmatic sinus (between the lower edge of the pleura and the diaphragm) makes it possible to reach and pierce the diaphragm more easily and without involving the pleura, in operating intrathoracically, — therefore the subpleural operation is more generally done anteriorly or antero- laterally. This sinus is absent posteriorly, and an incision here would pass through the pleura (if that structure were not raised from the course of in- cision by blunt separation) — hence the posterior operation is generally trans- pleural. In the transpleural operation, where the two layers of pleura? cannot be sutured /';/ situ — the parietal pleura is incised — its edges are grasped with for- ceps, or traction-sutures (to keep them from receding out of the way) — then the visceral peritoneum is incised — and the edges of the parietal and visceral peritoneum are whipped together by an overhand stitch. iooS OPERATIONS UPON THE ABDOMINO-PELVIC REGION. INSTRUMENTS USED IN OPERATIONS UPON LIVER AND GALL-BLADDER. Scalpels; bistouries; scissors, curved and straight; forceps, dissecting and toothed; artery-clamp forceps; clamp-forceps for adhesions; retractors, various; broad spatulae; grooved director; tenaculum; costotome; blunt dissector; in- testinal clamps; forceps for removing calculi; forceps for crushing calculi; Halsted's hammer; lithotomy scoop (small) ; lithotomy forceps (small) ; needles for needling stones; cholelithotomy forceps and scoop; sponge-holders; gauze pads with tails; intestinal and other needles; silk, gut, and silkworm-gut; drain- age-tubing, glass-drains, gauze-drains; exploratory cannula and trocar, or exploratory needle; intestinal instruments; Murphy button (special) ; probe. EXPLORATORY PUNCTURE OF LIVER. Description. — Resorted to for withdrawal of fluid for diagnostic pur- poses — generally pus or hydatid. An operation involving some danger. The site of puncture is generally determined by some physical sign, such as tumor or other indication — and the puncture is made by the safest and most direct route into the site. Preparation. — Site asepticized. Position. — Such as to best expose the region. Landmarks. — Anatomical outline of liver; physical signs. Fig. 744.— Relative Relation of Abdominal Viscera on Level with Lowest Part of Costal Arch (5 cm., or 2 inches, above umbilicus ; on a level with second lumbar vertebra) : — A, Stomach; B, Liver; C, Spleen; D, Pancreas; E, E, Kidneys; F, Transverse colon. (Modified from Riidinger.) Operation. — The exploration is usually made with the needle of an ex- ploratory syringe. The depth of puncture is to be guarded by the right index on the barrel of the needle — and to be largely determined in advance by the estimated thickness of the abdominal or thoracic wall and intervening liver substance at the site to be punctured. If no physical sign guiding to the seat of exploration exist, puncture may be made in several sites: — (i) Laterally, HEPATOTOMY IN GENERAL. ioog in the ninth, tenth, or eleventh intercostal space, in the mid-axillary line — the most general position — and the tenth space being the one most frequently used; — (2) Anteriorly, in the subcostal angle, over the known region of the liver (on anatomical grounds) — in the space bounded, above, by the costal arches, and, below, by a line from the right ninth costal cartilage to the left eighth costal cartilage. In abnormal cases, the liver may, of course, be looked for considerably lower than usual; — (3) Posteriorly, in the tenth intercostal space on the right. The liver is in relation, posteriorly, with the tenth and eleventh ribs — and the pleura comes down to the twelfth, or lower — hence the pleura would be pierced if not displaced; — (4) Transthoracic — preferably subpleural — rarely transpleural. See subpleural and transpleural hepatotomy, pages 1014 and 1016; — (5) Below the free border of the ribs — where the liver dulness extends belov; — (6) At any point from which liver substance can be reached with minimum risk and danger — the guides being anatomical and physical. Upon the withdrawal of the needle the puncture-wound is generally sealed with sterile gauze and collodion. (See Fig. 744.) Comment. — (1) Wounding of the lung should be avoided — and also piercing of the pleura or diaphragm, unless specially indicated. (2) The dia- phragm would be penetrated by any puncture above the lower border of the ribs or costal arch. The pleura would be penetrated by any puncture above the eighth right rib in the nipple-line — the ninth right rib in the mid-axillary line — (the tenth left rib in the same line) — and the twelfth right rib in the pos- terior scapular line. The lung would be penetrated by any puncture above the sixth costo-sternal articulation in front — the sixth right rib in the nipple-line — the eighth right rib at the mid-axillary line — and the right twelfth rib in the scapular line. HEPATOTOMY IN GENERAL. (1) Hepatotomy consists in an incision of the liver — and is generally re- sorted to for abscess, hydatid cyst, or other tumor. The site of the incision is usually determined in advance — by the presence of a tumor, or as a result of an exploratory puncture. (2) The liver may be exposed by the transperito- neal, subpleural, or transpleural routes — and each of these routes may be fol- lowed from the anterior, lateral, or posterior aspects of the thoracico-abdom- inal wall — though each method of approach usually has a site of preference. (3) The selection of the site and method of operation will depend upon the location of the abscess, or other condition — as to its accessibility, importance of contiguous organs, and possibility of drainage. (4) The choice of incision for approaching the liver transperitoneally will generally lie between the oblique subcostal and vertical subcostal incisions — each having its advantages (see General Surgical Considerations). It is to be remembered that abscesses, hydatids, tumors, etc., often project downward considerably below the ribs. It is also to be remembered that, after incision of such sacs and emptying of their contents, there is a tendency for the portion of involved liver to regain its normal position — and that, therefore, in calculating to suture such parts to the abdominal wall for drainage, calculation must be made that the stitching will not draw the part too far out of its natural position. (5) Where no guide exists, the anterior or antero-lateral subcostal transperitoneal route is generally chosen, as, in abscess, pus is usually in the more anterior part of the right lobe. But after exposure of the liver, if, by exploratory syringe, or otherwise, pus be found in a locality more conveniently reached and drained from another ex- ternal incision, the first incision may be closed and a second made in the in- 64 ioio OPERATIONS UPON THE ABDOMINO-PELVIC REGION. dicated position. (6) The different incisions described in the following pages are given to cover the various sites in which the liver may be exposed — and apply as much to the exposure of the liver for other purposes as for incision of that viscus. In the case of pus or hydatids the site of operation will generally have been indicated by a preliminary exploratory puncture. (7) The operation of exposure of the liver may be done in one or in two stages. In operating in one stage, the liver is exposed and the organ is cut into at once — after safeguarding the general peritoneal cavity by suturing the parietal perito- neum to the surface of the liver, or by gauze packing, — or, in transthoracic operations, after protecting the pleural cavity on the same principles. In operating in two stages, the liver is first exposed and the wound then packed with gauze for two or three days, until the peritoneal surface of the liver adheres to the wound (the union being reinforced and aided by sutures, in some cases) — and then the organ is incised. (8) In operating transthoracically, if the pleura be wounded, it should be immediately sutured — with a purse-string suture, if possible, thus drawing the edges together. (9) The subpleural method is generally impossible if adhesions exist — but then, also, the pleural cavity is apt to be shut off — so that it is not opened up even if one passes through its layers. (10) The posterior superior aspect of the right lobe of the liver is fused to the diaphragm (there being no peritoneum here) — hence the diaphragm may be immediately incised in this locality, without waiting for adhesions. An abscess here would be subphrenic and extraperitoneal, (n) If the transpleural method of approaching the liver be adopted, the same prin- ciples should be adhered to as in operating transperitoneally — either suture the two opposed pleurae together and incise through them at once — or press the two pleural surfaces into contact with gauze packing for two or three days, until adhesions occur — and then incise through them. (12) It is preferable to pass beneath the pleura rather than through it — and if they must be incised at once, it is preferable to suture the parietal and visceral layers together pre- paratory to going through them. The operation of suturing the pleura?, how- ever, is quite difficult — and the suturing is apt to tear away — or allow of leak- age. (13) In cutting into the liver the incisions should be made in straight lines radiating from the direction of the center toward the periphery. (14) Bleeding from deep incisions may be controlled by ligature en masse, with in- terlocked stitches — as described under partial excision of the liver. ANTERIOR SUBCOSTAL TRANSPERITONEAL HEPATOTOMY BY ANTERIOR OBLIQUE INCISION PARALLEL WITH COSTAL ARCH. Description. — The liver is exposed along the right costal arch, by an in- cision which parallels that arch and is placed 1.3 to 2 cm. (\ to f inch) below it. Resorted to where the more central portion of the anterior aspect of the liver and gall-bladder region is to be exposed. Preparation — Position. — As for abdominal section. Landmarks. — Right costal arch. Incision. — Parallel with and from 1.3 to 2 cm. (\ to f inch) below the right costal arch — beginning near the right linea semilunaris (which runs downward from the ninth rib to the spine of the pubis) — and extends as far downward and outward, below the costal arch, as considered necessary — even to the extent of 12.5 to 15 cm. (5 to 6 inches). (Fig. 699, F.) Operation. — (1) Incise skin — fascia — external oblique (transversely) — internal oblique (in cleavage line). Superior epigastric artery may be cut at ANTERIOR SUBCOSTAL TRANSPERITONEAL HEPATOTOMV. ion inner end of incision, if the inner end reaches the outer border of the rectal sheath — if so, it is ligated. The abdominal nerves lie between the internal oblique and transversalis, crossing the line of incision, and an attempt should be made to draw them aside if encountered. The transversalis muscle is then divided obliquely to its fibers. In long incisions, much division of muscles and nerves must occur. In short incisions, much displacement in intramuscular cleavage lines and saving of nerves may be accomplished (Fig. 745). (2) Divide the transversalis fascia, subperitoneal areolar tissue, and peritoneum in the original line — and retract the wound well. (3) Adhesions are looked for as soon as the abdomen is opened. If encountered, intervening between the seat of pus, or hydatid fluid, and the abdominal wall, they are carefully pre- served — that they may serve as a protection to the general peritoneal cavity in opening these collections- of fluid. If the object be the exposure of the liver Fig. 745.— Exposure of Liver, and Hepatotomy, by Anterior Oblique Subcostal In- cision : — A, External oblique ; B, Internal oblique ; C, Transversalis ; D, Outer border of right rectus incised, showing superior epigastric vessels between muscle and posterior sheath; E, Transversalis fascia and subserous areolar tissue; F, Peritoneum; G, Surface of liver; H, Suture through lip of liver wound, peritoneum, transversalis fascia, subserous areolar tissue, and transversalis ; I, Same tightened, approximating lip of liver wound to lower plane of abdominal wound. on other grounds, the adhesions are separated by blunt dissection, or are divided between ligatures. (4) The liver having been exposed, the operation may be concluded in a single stage, or in two stages: — (A) In One Stage; — Where (in pus and hydatid cases) adhesions of parietal peritoneum to hepatic peritoneum have occurred, the incision may be made directly into the liver substance. Where no such adhesions exist, one of two courses may be pur- sued; — (a) The lips of the abdominal wound may be applied to and pressed around the site of the liver to be opened, by the fingers of an assistant and by packing — the tensity of the abscess wall is then lessened (to avoid a gush of pus) by the withdrawal of some of its contents with a syringe — a narrow bistoury is inserted into the abscess and its walls incised — the contents are directed out without escaping into the abdomen — and as soon as the cavity is partly empty, 1012 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. the edges of the abscess wall, including Glisson's capsule, are seized with special forceps and drawn up into the wound and exerted, while the balance of its contents is emptied — the borders of the abscess cavity are then stitched to the edges of the abdominal wound at its lower plane (that is, to the parietal peritoneum, subserous areolar tissue, transversalis fascia, and possibly into the edge of the muscle tissue) with continuous or interrupted silk or chromic gut sutures — closing in either end of the abdominal wound in the usual way— leaving room for the exit of tube or gauze drain. Or, pursuing a second course — (b) Before opening the peritoneum, and after recognizing that the parietal and hepatic peritoneal surfaces are not adherent, the parietal peri- toneum (by slight outward separation of the extraperitoneal parts of both lips of the wound) may be stitched, with curved needle, to the hepatic surface over an elliptical area, with continuous silk or chromic gut— surrounding and further protecting the area by gauze packing — and then incision is made simultane- ouslv through parietal and visceral peritoneum into the liver — drainage being established and the wound treated as in (a). (B) In Two Stages; — This method is practised only where no adhesions are found — and when no haste exists. The parietal peritoneum is united to the serous surface of the liver in one of the two above ways — the gauze packing being preferable to the stitching (or both may be used together) — the wound being packed with gauze, pressing the serous surfaces together for two or three days — after which the incision is made and the operation completed as in (a) above. Comment. — Where the abscess, or other cavity, is incised before the ab- dominal wall is sutured to the liver, the suturing of the margin of the cavity to the abdominal wound is aided by inserting the left index-finger into the cavity and hooking it forward — thus holding it in contact with the abdominal wall while the sutures are being placed and tied. EXPOSURE OF LIVER BY ANTERIOR SUBCOSTAL TRANS- PERITONEAL ROUTE BV ANTERIOR VERTICAL INCISION" THROUGH RIGHT LINEA SEMILUNARIS. Description. — A free exposure is thus given — which may be lengthened so as to give access to both peritoneal and pelvic cavities. See General Sur- gical Considerations. The incision may also be placed to the outer side of the right semilunar line. Preparation — Position. — As for abdominal section. Landmarks. — Right Linea Semilunaris (which extends from the ninth right costal cartilage to the pubic spine, passing within 7.5 cm. [3 inches] of the umbilicus) ; right costal arch. Incision. — Vertically downward in the right semilunar line, beginning at the right ninth costal cartilage and extending as far as necessary (Fig. 699, G). Operation. — Incise skin — fascia — external oblique (obliquely)— internal oblique (obliquely) — abdominal nerves between internal oblique and trans- versalis are almost necessarily divided (except in very short incisions they may sometimes be displaced) — transversalis muscles (transversely) — transversalis fascia, subserous areolar tissue and peritoneum — entering the abdomen in the original line. All hemorrhage is controlled — the lips of the wound retracted— and the liver exposed. INTERCOSTAL SUBPLEURAL EXPOSURE OF LIVER. 1013 EXPOSURE OF LIVER BY LATERAL SUBCOSTAL TRANS- PERITONEAL ROUTE BY LATERAL HORIZONTALLY CURVED INCISION BELOW RIGHT TWELFTH RIB. Description.— The general features of the operation are the same as by the anterior oblique subcostal incision — the steps of the operation differing only in so far as determined by anatomical circumstances. Chiefly applicable where the lower lateral aspect of the liver is to be exposed. Preparation. — As for abdominal section. Position. — Patient rests upon opposite side, with cushion under the sound side to round out the involved side; Surgeon may stand behind or in front of patient; Assistant opposite. Landmarks. — Right twelfth rib, in the mid-axillary region. Incision. — Parallel with and about 1.3 to 2 cm. (J to f inch) below the right twelfth rib, with its center about opposite the mid-axillary line. Operation. — Incise skin — fascia — external oblique (obliquely) — latis- simus dorsi (transversely, if the incision extend that far backward) — internal oblique (obliquely) — the nerves between the internal oblique and transversalis being guarded as well as possible — transversalis muscle (in cleavage line) — transversalis fascia, subserous areolar tissue, and peritoneum in the original line. All hemorrhage is controlled — the wound retracted — and the liver brought into the field. Comment. — Unless the liver be enlarged, but small part of its lower border is accessible through this incision — except by the strong upward retraction of the twelfth rib, and the downward retraction of the lower lip of the wound. EXPOSURE OF LIVER BY INTERCOSTAL SUBPLEURAL ROUTE BY INTERCOSTAL INCISION BELOW LEVEL OF PLEURA. Description. — This incision, which is made in an intercostal space below the level of the pleura, rarely gives sufficient room — and is indicated only in cases where abscess or fluid point here and adhesions have, in all probability, protected surrounding regions. In the following description the operation site will be supposed to be in the right tenth interspace, in the mid-axillary line. Preparation — Position. — As for intercostal thoracotomy (see page 761). Landmarks. — Right tenth and eleventh ribs, in the mid-axillary line. Incision. — Midway between lower border of the right tenth and the upper border of the right eleventh rib — in the mid-axillary region. Operation. — The steps of the operation are the same, practically, as those for Intercostal Thoracotomy (q. v., page 761) — with the exception that in the present instance the incision is made below the level of the pleura. As an operation, owing to the small amount of room which it affords, it is indicated only in those cases in which the liver is supposed to be adherent to the dia- phragm opposite the site of incision (either naturally or by pathological pro- cess). If during operation it be found that the liver be not adherent to the diaphragm, parts of one or two ribs should be excised — and the operation be completed as given in the following description. Comment. — The operation is distinctly inferior to the following method. IOI4 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. A - Fig. 746.— Exposure of Liver by Subpleural Route, by Partial Excision of a Rib below Level of Pleura : — A, A, Thoracic muscles ; B, B, Anterior and posterior layers of rib periosteum retracted after excising part of rib, both divided longitudinally, and endothoracic fascia seen upon under surface of latter; C, Diaphragm being sutured to convex surface of liver and incised within area elliptically sutured. EXPOSURE OF LIVER BY SUBPLEURAL ROUTE BY PARTIAL EXCISION OF ONE OR MORE RIBS BELOW THE LEVEL OF PLEURA. Description. — The liver is here approached transthoracically, but the incision being placed below the normal level of the pleura, the pleura is not, ordinarily, brought into the field of operation. In the following account, part of the right eleventh rib in the mid-axillary line will be removed. Preparation — Position. — As for Thoracotomy by the partial excision of a rib. Landmarks. — The special rib nearest the site to be exposed. Incision — Operation. — As for the Partial Subperiosteal Excision of a Rib (see page 480) — up to the point of the removal of the rib. The posterior layer of periosteum, forming the bed in which the rib has lain, is then incised in its center, in its long axis. If more room be required than furnished by the partial excision of one rib, two or more ribs are excised in part (see page 764). Having passed through the thoracic wall, the diaphragm is exposed and in- cised — in a line corresponding with the direction of its muscle-fibers at the site incised. The edges of the diaphragmatic wound are sutured to the convex surface of the liver, if not already adherent. If adhesions be present, or if haste be necessary, the liver is incised at once. If haste be unnecessary, and no adhesions be present, the wound, after the above suturing, is packed with gauze for two or three days, until adhesions form — and the organ then in- cised (Fig. 746). EXPOSURE OF LIVER BY SUBPLEURAL ROUTE BY PARTIAL EXCISION OF ONE OR MORE RIBS OPPOSITE THE PLEURA. Description. — Parts of one or more ribs are excised subperiosteally above the level of the pleura — the pleura is exposed but not opened — and is carefully EXPOSURE OE LIVER BY SUBPLEURAL ROUTE. 1015 separated from the thoracic wall and diaphragm and displaced upward — the diaphragm being thus exposed and the liver entered through its substance. In the following account, parts of the seventh and eighth right ribs in the antero- lateral aspect of die chest will be removed. Preparation — Position. — As for Thoracotomy. Landmarks. — The rib or ribs overlying the involved site. Incision — Operation.— (1) The operation is conducted as a Partial Sub- periosteal Excision of one or more Ribs (see page 480) — up to the removal of the rib. The Subperiosteal bed of the rib is very carefully incised in the center of its long axis — cautiously recognizing but not incising the costal pleura — which is to be preserved with the greatest care from the smallest cut or tear (on account of the respiratory complications often arising from the entrance of air into the pleura, with the possible collapse of the lung, and the possible infection Fig. 747. — Exposure of Liver by Subpleural Route, by Partial Excision of Parts of Tun Ribs Opposite the Pleura : — A, A, Upper layer of periosteum and thoracic muscles retracted ; B, B, Lower layer of periosteum and intercostal muscles retracted; C, Pleura detached and retracted upward; D, Diaphragm incised; E, Incised margin of parietal pleura; F, Convex surface of liver; G, Sutures uniting edges of diaphragm and parietal peritoneum to surface of liver. of the pleura). (2) The costal pleura is carefully detached by blunt dissection, largely aided by the back of the surgeon's fingers — first detaching it from the ribs, until its lowest thin edge is reached — then from the upper surface of the diaphragm — and finally displacing it upward and retaining it there by blunt, rounded retractor, or gauze packing. Thus the upper surface of the diaphragm, as far inward as necessary, is freely exposed — with the upper convex surface of the liver immediately below it (Fig. 747). (3) The operation is now com- pleted in one or in two stages: — (a) In One Stage; — The diaphragm is incised over the site of fluid — the edges of the diaphragmatic wound are slightly sepa- rated — and these edges are sutured with chromic gut (by means of a curved needle in a holder) to the upper surface of the liver, in the form of an ellipse. If adhesions be present between liver and diaphragm, this suturing is unneces- sary. In addition (to either suturing or adhesions), gauze is packed around 1016 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. the region, further guarding against infection. To relieve the tension part of the contents of the cavity is first aspirated. The liver is then incised and drained. The wound is closed up to the site of drainage — so suturing the parts that the thoracic cavity is shut off and the pleura prevented from coming into the region of the wound, (b) In Two Stages; — The diaphragm is sutured as above to the liver and the wound packed — and, after two or three days, when adhesions have occurred, the liver is incised and drained — and the wound treated with the same precautions as just given. Comment. — (i) Parts of at least two ribs should generally be excised — to give the necessary room to meet the difficulties which are apt to arise in the progress of the operation. (2) Where, from the position of the opening it is possible to do so, it is well to unite the edges of the diaphragm to the edges of the thoracic wound — thus giving freer drainage and better protection of the neighboring parts from infection. EXPOSURE OF LIVER BY TRANSPLEURAL ROUTE BY PARTIAL EXCISION OF ONE OR MORE RIBS OPPOSITE THE PLEURA. Description. — Following the subperiosteal excision of parts of one or more ribs, no attempt is made to avoid the pleura, but care is taken not to open it prematurely. After entering the thoracic cavity, in the same manner as in the last operation, the costal and diaphragmatic pleurae are recognized — their surfaces are then sutured together in the form of a circle or an ellipse — and an opening is made through their united surfaces — at once if necessary, — after two or three days if haste be unnecessary. Thus an attempt is made to pre- vent the invasion and infection of their cavity. The operation is inferior to the subpleural method, which should always be practised if possible — reserving the method just described for those cases in which the pleura cannot be thus sepa- rated and pushed above the seat of operation. In the following account parts of the seventh and eighth right ribs will be excised in the antero-lateral aspect of the chest. Preparation — Position — Landmarks — Incision. — As in the operation last described. Operation. — Same as in the above operation — except that when the pleura is exposed, instead of detaching and displacing it upward, the costal and dia- phragmatic pleura? are sutured together in an elliptical or circular outline, with continuous suture of silk or fine chromic gut carried upon a curved needle in a holder — carefully guarding against opening the pleural cavity in the pro- cess of manipulation — it being very difficult to prevent the tearing out of the pleural stitches. The operation may now be concluded in one or in two stages: — (a) In One Stage; — Through the center of the area thus sutured, the two pleurae are incised — through this incision the diaphragm is exposed — the margins of the pleurae are now sutured as one layer to the diaphragm, over an elliptical area, with continuous suture of silk or fine chromic gut, carried upon a fully curved needle in a holder — the surrounding area is packed off with gauze, in addition — the diaphragm is incised — and the edges of the diaphragm are stitched, in turn, to the liver with chromic gut — after which, the tension of the abscess is partly relieved by aspiration — the liver then being incised — drain- age established and the wound partly closed, (b) In Two Stages; — Same as in the single-stage method — except that after suturing the double layer of pleura together, and, at the same time, to the diaphragm, in the form of a circle or ellipse — the area is packed with gauze for two or three days — after which the EXPOSURE OF LIVER BY RESECTION OF RIGHT COSTAL ARCH. 1017 operation is completed as above. In such cases, the diaphragm will usually be found adherent to the liver (when the operation falls over the peritoneal aspect of the liver). If, however, upon exposing the liver through the diaphragm, no adhesions are found, the margins of the diaphragmatic wound can be stitched to the liver surface — the wound packed and two or three days longer waited, if haste be unnecessary. Comment. — (i) If the two pleurae cannot be sutured, and time be avail- able, incise the parietal pleura — pack the wound for a few days, until the two pleurae have united around the margins — then incise the visceral pleura and diaphragm — similarly stitching the diaphragm to the liver for a few days, if desired. (2) If the situation of the wound make it possible, it is well to suture the edges of the diaphragmatic and thoracic wounds together. EXPOSURE OF LIVER BY CHONDRO-PLASTIC RESECTION OF RIGHT COSTAL ARCH BY ANTERIOR OBLIQUE SUBCOSTAL INCISION. Description. — Where the operation site is encumbered by the bony or cartilaginous thoracic wall, the area may be more satisfactorily exposed by Fig. 748. — Chondroplastic Resection of the Chest-wall: — I. — The soft parts over- lying the costal arch have been incised and retracted — exposing the cartilages of the seventh, eighth, ninth, and tenth ribs. (Redrawn from Guibe.) temporarily resecting the right costal cartilage forming the costo-chondral arch — turning it outward — and back into place at the end of the operation. By the resection of the right costal arch and, if necessary, the temporary division of the suspensory ligament of the liver, the superior aspect of the liver is exposed. The resection of both costal arches may be performed, I0l8 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. where the freest exposure of the liver, gall-bladder, gall-duct, and stomach regions is necessary. The chief danger is the possibility of opening the pleural cavity — to avoid which it is necessary not to carry the division of the ribs too high — not higher than the seventh interspace. Preparation — Position — Landmarks. — As for exposure of the liver by an anterior oblique subcostal incision. Incision. — An oblique incision is made — commencing at the border of the ensiform cartilage, a little below the last chondro-sternal articulation — passing thence outward and downward, parallel with but about 2.5 cm. ( 1 inch) above the border of the costal arch — generally ending at the tip of the eleventh rib. Operation. — The skin, fascia, and overlying muscle-fibers are divided — Fig. 749. — Choxdroplastic Resection or the Chest-wall: — II. — The costal margin incised and turned forward. (Redrawn from Guibe.) until the plane of the costal cartilages is reached. The cartilaginous portion of the ribs is divided with a bistoury, carefully guarding the underlying soft parts. The tenth and ninth cartilages are divided just to the inner side of the chondro-costal articulations. The eighth cartilage is generally divided in three places — externally, just within the chondro-costal articulation — internally, just without the chondro-sternal articulation — and in the middle, through the band of union of the eighth to the seventh cartilage (when this exists). Between the cartilages, the intercostal muscles and membranes are incised (Fig. 748). The incised cartilaginous margin is then seized and turned downward and inward— separating with a bistoury the muscular attachments of the diaphragm and transversalis, closely hugging the cartilages in the act (Fig. 749) . As soon as the chondro-plastic flap has been sufficiently displaced, the muscular fibers of the diaphragm or transversalis, which form the floor of the wound, are incised — thus opening the peritoneal cavity. The chondro-plastic flap is then well depressed and the outer lip of the wound PARTIAL HEPATECTOMY. IO19 well elevated— when the superior surface of the liver is exposed by retracting it downward and, if necessary, by temporarily dividing the suspensory liga- ment — and the inferior aspect and gall-bladder region by retracting the liver upward. As the end of the operation, in closing the wound, the deeper portion is sutured by carrying the suture through the intercostal spaces and the diaphragm, on the outer side, and through the transversalis and internal oblique, on the inner side — thus bringing together the soft parts of the thorax, and, with them, the incised cartilages. The overlying superficial muscles are then sutured — and the skin closed as usual. If considered necessary, the surfaces of the severed cartilages may be sutured through previously pierced holes. Indeed, the temporarily displaced costal arch may be com- pletely severed from its soft attachments and discarded — though its retention is preferable. If necessary, a drain may be carried beneath the replaced costal arch. HEPATORRHAPHY. Description. — Suturing of the liver substance. Generally done in the case of wounds of the liver-^and in the approximation of the cut surfaces after partial excisions. The liver may be exposed by any of the above operations, according to the circumstances of the case — preference being given to the simplest route. Preparation — Position — Landmarks — Incision. — As for Hepatotomy (page 10 10). Operation. — Having exposed the liver in one of the usual methods — and an assistant having brought the involved region of the organ well into the field — interrupted chromic gut sutures, carried upon a large, fully-curved Hagedorn, or other, needle, are carried through the opposed edges of the wound. Two tiers of sutures are, ordinarily, indicated — coarser gut carried more deeply and further from the edges — and finer gut more superficially and nearer the edges. The deeper sutures are first tied — then the superficial, — after which the liver is dropped back into place — and the abdomen closed—- unless special cause for drainage exist. (See Fig. 750.) HEPATOPEXY. Description. — Operation of suturing the liver, in whole or in part, to the abdominal wall, or neighboring structures. Resorted to for partial or com- plete hepatoptosis. Preparation — Position — Landmarks — Incision. — As for Hepatotomy by anterior oblique subcostal incision. Operation. — The prolapsed liver having been exposed, the part involved in the prolapse, or the whole liver, if involved in its entirety, is brought into its normal position — and is then sutured with coarse chromic gut, kangaroo- tendon, or silk, to the posterior surface of the anterior abdominal wall. It may also be sutured to the round ligament — to the cartilages of the ribs— or to the general abdominal wall. The sutures are carried deeply into the liver substance with a lanie, fullv curved needle. PARTIAL HEPATECTOMY, Description. — Excision of a limited portion of the liver substance. Gen- erallv done in the removal of growths. 1020 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Preparation —Position— Landmarks — Incision. — As for Hepatotomy by one of the transperitoneal routes — and preferably by an incision parallel with and just below the ribs. Operation. — (i) The abdomen is opened — and the involved portion of the liver is brought as far forward into the wound as possible. (2) Circum- scribe the growth, or part to be removed, by an elliptical incision — the elliptical outline representing the base of a wedge, the sides of which come together within the liver beyond the part to be removed. The ellipse, where possible, is made with its long .axis radiating from the center of the liver toward the per- iphery, and so placed as to avoid the chief hepatic vessels. This area is ex- cised by cutting down along the outline of the incision, the knife traveling at a Fig. 750.— Partial Hepatectomy, followed by Hepatorrhaphy : — A, Incised external ob- lique, internal oblique, and transversalis ; B, Incised outer border of rectal sheath; C, Costal arch retracted from liver; D (lower D), Gauze pad packed under liver; E, Borders of liver-wound after excision of wedge; F, Superficial sutures through liver substance; D (upper D), Deep sutures. right angle to the surface — hemorrhage being controlled by pressure and by ligature with chromic gut. (Also see Comment.) (3) The sides of the wound are then brought together by deep and superficial chromic gut sutures — placed and tied as described under Hepatorrhaphy (page 1019). (4) Unless drainage be specially indicated, the liver is dropped back into place and the abdomen closed — particularly if the surfaces of the wound be satisfactorily approximated and hemorrhage be entirely controlled (Fig. 750). Comment. — (1) If the area to be excised is first surrounded by a deeply placed, interlocking chromic gut ligature, hemorrhage is more thoroughly con- trolled. These ligatures are then drawn tightly enough to cut through the liver substance and bind the vessels before these are cut. (2) Also a heavy SURGICAL ANATOMY OF THE GALL-BLADDER. 1021 ligature may be placed through the liver, surrounding the part to be removed, which is thus tied off in sections — the ligatures being tightened and the part removed with the knife or cautery. OPERATION FOR CIRRHOSIS OF THE LIVER. EPIPLORRHAPHY OR EPIPLOPEXY — TALMA-DRTTMMOND OPERATION. Description. — This operation, or one of its modifications, has been successfully employed in some cases of cirrhosis of the liver. It is based upon the principle of forming additional venous communications between the systemic and portal circulations in order to relieve obstruction in the over- burdened portal circuit. Preparation — Position — Landmarks. — As for median abdominal sec- tion. Incision. — The incision is made in or near the median line, over a length equivalent to that between the ensiform cartilage and umbilicus. Local anesthesia generally suffices. Operation. — Having opened the abdominal cavity, all ascitic fluid is drained or sponged away. The liver is exposed and all of the accessible upper surface which comes into contact with the diaphragm is rubbed briskly with gauze. The convex surface of the spleen is similarly treated. The omentum is brought forward and sutured to the parietal peritoneum of the anterior abdominal wall, to both sides of the median line (with or without frictioning of their surfaces) — which is readily accomplished by everting the relaxed abdominal wall in the average case of ascites. The greater the number of adherent points between peritoneum and omentum, the better. The abdomen is closed — no drainage being used in the later cases, as was formerly the habit. VIII. THE GALL-BLADDER. SURGICAL ANATOMY. Description and Position. — Bound to fossa of gall-bladder, upon under surface of liver, by connective tissue and vessels, lying between the right and quadrate lobes — its fundus reaching the abdominal wall anteriorly — and its neck extending to the transverse fissure posteriorly. Its fundus and inferior and lateral aspects are covered with peritoneum reflected from the liver. It sometimes has a mesentery. Its neck points backward and upward, toward the transverse fissure of liver, — its fundus points downward and forward toward the anterior border of liver. Its length is from 7 to 10 cm. (2| to 4 inches) — the width of its fundus is from 2.5 to 3 cm. (1 to if\ inches) — and it holds about 20 c.c. Relations. — Superiorly; — fossa of gall-bladder; — Inferiorly; — duode- num (first and second parts); pyloric end of stomach (sometime-); colon (hepatic flexion and commencement of transverse portion); — Anteriorly; — abdominal wall; ninth costal cartilage. Arteries. — Cystic, from right branch of hepatic. Veins. — Cystic (two) emptying into right branch of vena porta?; others emptying into liver. Lymphatics. — Run into a gland at its neck. Nerves.— Supplied by cceliac plexus. Fixations. — Connective tissue; vessels; peritoneum reflected over under surface of liver; cvsto-duodenal ligament (a fold of peritoneum extending from neck of gall-bladder to duodenum). OPERATIONS UPON THE ABDOMINO-PELVIC REGION. SURFACE FORM AND LANDMARKS. The fundus of the gall-bladder projects outward beyond the anterior border of the liver, in the incisura vesicalis — generally resting upon the transverse colon — and coming into contact with the anterior abdominal wall close to the outer border of the right rectus muscle. Authorities differ as to the exact point of contact with the abdominal wall, in relation with the costochondral struc- tures; — according to Morris, the fundus lies opposite the cartilage of the right ninth or tenth rib; — according to Gray, opposite the inferior border of the right ninth costal cartilage; — and according to Treves, below the inner end of the right tenth costal cartilage. GENERAL SURGICAL CONSIDERATIONS. (i) The gall-bladder is in relation with the first and second portions of the duodenum, with the hepatic flexure and commencement of the transverse colon, and sometimes with the pylorus. Therefore the gall-bladder could generally be united with either duodenum or colon — but if united to the colon, the func- tion of the bile in the small intestines would be lost — hence the duodenum is the usual site of anastomosis. (2) In examining the gall-bladder and ducts, first pass the left index over these structures, to gain an idea of their size and contents — then let the left index slip through the foramen of Winslow — in which position the left thumb will grasp the ligamentum hepato-duodenale (the right margin of the gastro-hepatic omentum) and press it against the left index — and thus the ducts can be palpated between thumb and index, up- ward and downward. (3) By drawing upon the gall-bladder, the gall-ducts are rendered more tense and evident. (4) The pedicle of the gall-bladder consists of cystic duct, artery, and veins. INSTRUMENTS USED IN GALL-BLADDER OPERATIONS. Mentioned under Instruments used in operations upon the Liver (page 1008). CHOLECYSTOTOMY BY VERTICAL SUBCOSTAL INCISION. Description. — Incision of gall-bladder for removal of its contents — followed by closure at same operation. L T sually resorted to in exploratory operations upon the healthy gall-bladder and with unobstructed ducts. The closed gall-bladder may be dropped back into the free abdomen, but is gen- erally anchored to the abdominal wall. Preparation. — As for a median abdominal section. Position.— The best position for gall-bladder and gall-duct work is that given by Elliot, of Boston, in his own words; — "The patient is hung by straps under the arms on an inclined plane at an angle of something less than 45 degrees. A sand-bag is placed under the back, so that the patient is bent over it. In this position the intestines gravitate to the lower part of the abdomen, so that when the liver is held up by a retractor, the air sucks in between the liver and the intestines, much as it enters the pelvis in the Tren- delenburg position." The only objection to this position (which does not CHOLECYSTOSTOMY. 1023 outweigh its advantages) is that when a simple vertical incision is used, the lips of the wound tend to be approximated and tensed by the posture of the body — which, however, is avoided by the adoption of the Mayo Robson inci- sion. Landmarks. — Site of fundus of gall-bladder (opposite lower border of right ninth costal cartilage) ; right linea semilunaris. Incisions. — The best incision of approach is probably that of Mayo Robson — which begins as a simple vertical incision through the outer aspect of the right rectus muscle, 10 or 13 cm. (4 or 5 inches) in length, from the costal arch downward. If more room be needed, it may be extended upward and inward below the costal arch — or downward in a straight line (Fig. 751, A). The oblique subcostal incision of Kocher may be used (Fig. 751, B). Fig. 751. — Incisions for Exposing the Gall-bladder and Ducts: — A, Mayo Robson's incision; R, oblique subcostal incision. (Modified from Deaver.) Operation. — Having opened the abdomen and examined the gall-bladder, gall-ducts, and head of the pancreas, the region of the gall-bladder is packed off with gauze. The fundus of the bladder is grasped with special forceps — so as to draw it forward and hold it in the field during subsequent manipula- tions. If at all distended, part of the contents should be withdrawn with a needle — to avoid the spurt of fluid which would otherwise be likely to soil the I024 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. field when the overdistended organ is incised. The fundus is then incised with a knife, or clipped with scissors — and the traction-forceps shifted to grasp the lips of the bladder-wound. While the lips of the wound are held apart, examination for calculi is made with a special scoop or forceps. When this has been done, the gall-bladder tracts are carefully palpated. Should any calculi be found, they are "milked" forward — and removed through the gall-bladder wound. In completing the operation, the usual course, where calculi have been found, is to establish a temporary opening and drainage of the gall-bladder — a cholecystostomy (page 1024). In those cases where no cause for drainage may have been found (which is rare in distinct gall-bladder involvement) — in such cases, for instance, as where the bladder is opened for exploration and no diseased condition be found, the organ may be sutured up and the abdomen closed. The incised wound is best closed by a layer of fine continuous catgut suture through all the coats of the viscus — followed by an interrupted seromuscular Lembert suture, burying in the first line of suturing. The gall-bladder may then be dropped back into the abdominal cavity — or be anchored to the abdominal wall by a couple of catgut seromuscular sutures, where, in the event that drainage become necessary, it will be easily accessible. The abdomen is then closed in the usual manner. CHOLECYSTOSTOMY BV OBLIQUE OR VERTICAL Sl'BCOSTAL INCISION. Description. — Incision of gall-bladder, followed by suturing of the opened bladder into the abdominal wound for a shorter or longer time. Generally resorted to in cases of gall-stones, or in suppuration. The operation may be done in one or in two "stages — in the former case, the gall-bladder is opened at once — in the latter, it is first sutured to the abdominal wall and not opened until after adhesions have formed. Preparation. — As for median abdominal section. Fig. 752. — Cholecystostomy by Oblique Subcostal Incision: — A, External oblique; B, In- ternal oblique; C, Transversalis ; D, Subserous areolar tissue and transversalis fascia; E, Peri- toneum ; F, Gall-bladder, its fundus being drawn out of abdominal wound ; G, Sutures through trans- versalis and subserous fasciae, and through serous and muscular coats of gall-bladder. Position. — As for vertical subcostal cholecystotomy, page 1022. Landmarks. — Lower border of tip of right ninth costal cartilage; costal arch; right linea semilunaris. CHOLECYSTOSTOMV. IO25 Incision. — Oblique or vertical subcostal incision, as for exposure of the liver (see page 1010 and Fig. 745, and also General Surgical Considerations in Operations upon the Liver, page 1006). Operation. — Having opened the abdomen by the chosen incision, hem- orrhage is controlled, the wound is retracted, and the gall-bladder located. If any adhesions are found, these are separated by blunt dissection, or tied off — and the bladder brought as far out into the abdominal wound as possible (Fig. 752). If much intravesical tension exist, this should be lessened pre- liminarily by the aspiration of part of the fluid. The operation may now be concluded in one or in two stages; — (A) In One Stage: — (a) Having partially emptied the gall-bladder by aspiration, and after having packed off the vicinity with gauze, the bladder is seized with special forceps, a pair in each hand of an assistant — or by two traction-loops passing through the serous and muscular coats — and while thus held as far out of the wound as possible, the fundus of the bladder is incised vertically between the forceps or traction-loops, pro- vision being made for the catching of the fluid, (b) Having opened the gall- bladder, and while holding the lips of the bladder wound apart, insert a finger, or special instrument, and pass it down to the cystic duct to examine the con- tents — removing with special forceps or scoop any calculi found — followed by irrigation or cleansing of the bladder, (c) The cystic, hepatic, and common ducts are then carefully palpated, (d) In completing the operation, the pack- ing is removed and the excess of abdominal wound is closed in from either end toward the center, in the ordinary manner, leaving a sufficient opening mid- way between the ends, or in the most convenient site for approximating the bladder. The margins of the gall-bladder are now sutured into the lower edge of the abdominal wound left after the partial closure of the ends of the abdominal incision — in such a way that all the coats of the gall-bladder are sutured to the lower layers of the abdominal wound with fine interrupted chromic gut — so that serous surfaces are approximated, but so that the edges of the gall-bladder wound do not reach to the skin. Or, where sufficient room for manipulation exists, it is better to use two tiers of sutures — the first row of fine gut sutures passing through serous and part of muscular coats of the gall- bladder, on the one hand, and through the parietal peritoneum, on the other, — followed by a second tier suturing all the coats of the gall-bladder to the apo- neurotic layer of the abdominal wound, (e) If considered necessary, drainage may be conducted through the abdominal wound down to the cystic duct. The best form of bladder drainage is secured by means of a rubber tube, about 6 mm. (3 inch) in diameter — 5 to 8 cm. (2 to 3 inches) of which are placed within the gall-bladder — the opposite end reaching to the pelvis for drainage. The tube is held in position by a catgut suture passing through the rubber tube, on the one hand, and through the serous and muscular coats of the gall-bladder, on the other. The serous surface of the gall-bladder is made to snugly grasp the rubber tube by being drawn around it with a seromuscular purse-string suture — thus avoiding leakage — as shown in Fig. 753- If the incision into the fundus of the gall-bladder be too large for closure by a purse-string suture, the closure may be made by a seromuscular suture. The gall-bladder may be allowed to fall back into the peritoneum — but it is generally better to anchor it in contact with the abdominal wall, either separately by a few interrupted seromuscular sutures, or in the act of suturing up the lower level of the abdominal wound. (B) In Two Stages; — (a) Having closed in the excess of abdominal wound from either end, the fundus of the gall-bladder is sutured into the remaining opened portion of the abdominal wound by interrupted silk or fine chromic gut sutures — passing 1026 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. through the serous and muscular coats of the gall-bladder, on the one hand, and through the parietal peritoneum and the lower layers of the abdominal wound, on the other, (b) When adhesions have formed in two or three days, the fundus is incised — as in the single-stage operation. Comment. — (A) In Operating in One Stage; — (a) The gall-bladder may be tied with a purse-string around a glass flanged tube, which is then brought out of the abdominal wound. Or a Murphy button-tube, with long cylinder, may be used. The tube or button tied in sloughs out in a few days, by which time adhesions have shut off the cavity, (b) Where the gall-bladder is small and contracted, so as not to reach the abdominal wound, the parietal perito- neum may be peeled back from the edges of the abdominal wound and sutured around the wound in the fundus of the gall-bladder. (B) In General; — (a) Fig. 753- — Cholecystostomy: -— A rubber drainage-tube anchored in the incised fundus of the gall-bladder and about to be further buried by a purse-string suture. It may be possible, by the oblique subcostal incision, to expose the gall-bladder through an intermuscular separation of the external oblique, internal oblique, and transversalis muscles, in the triangular space bounded by the eighth nerve running along the costal arch, the ninth nerve running transversely inward from the level of the lower border of the ninth costal cartilage, and the linea semilunaris, (b) Adhesions may have to be separated before the gall-bladder can be brought forward, (c) Avoid stitching the gall-bladder to the skin, as such fistulae are hard to cure, (d) Sometimes stones discovered in the ducts can be milked back into the gall-bladder and thence removed, (e) In the two-stage operation, the examination of the interior of the bladder and of the ducts is not so satisfactory as in the single-stage operation — nor the removal of stones, if found, so easy. CHOLECYSTENTEROSTOMY BV THE MURPHY BUTTON. Description. — By Cholecystenterostomy is meant the establishment of a communication between the gall-bladder and the small or the large intestine. Preferably the union is made with the duodenum (Cholecysto-duodenostomy), — next, with the upper jejunum (Cholecysto-jejunostomy), — and if these be not easily brought into apposition (because of adhesions, or other conditions), the junction is made with the hepatic flexure of the colon (Cholecysto-col- ostomy). Union may be accomplished by some mechanical device, of which Murphy's special gall-bladder button is probably the best — or it may be ac- complished by simple suturing. The operation is indicated in unremovable obstruction of the cystic or common ducts, in chronic cholecystitis, and in persistent fistulae following cholecystostomy. Preparation — Position — Landmarks. —As for Cholecystotomy. Incision. — A vertical subcostal incision is generally to be preferred. If a CHOLECYSTENTEROSTOMY. 1027 tumor exist, the incision is placed over it — if not, it is placed in the right semi- lunar line, or just to the outer side of it. Operation. — The steps of the operation are not essentially different from Entero-enterostomy by the Murphy button. (1) The abdomen having been opened, the gall-bladder and duodenum are exposed — and trial is made to as- certain that both structures can be brought into the field and approximated without too great tension. The field is then packed off with gauze. If the bladder be very much distended, the distention is lessened by partial aspira- tion, that the contents may not be thrown out over the neighboring parts on incising the viscus. (2) The regular purse-string suture (see Fig. 754) is then in- troduced through all the coats of the gall-bladder, calculating to so place it upon the prominent fundus, or the inferior surface of the gall-bladder, as to make the best approximation with the duodenum, without tension. The bladder- wall is then incised between the lines of the purse-string suture for a distance equal to two-thirds of the diameter of the special button. The male button, grasped in the usual manner, is insinuated into the opening in the gall-bladder and the walls of that viscus drawn about the cylinder of the button and tied. (3) The female button is similarly introduced into the free aspect of the duo- denum and tied. (4) The halves of the button are pressed together — thus completing the cholecysto-duodenostomy. If reinforcing Lembert sutures are considered necessary, they are applied. (5) Unless special cause for drainage exists, the abdomen is closed as after ordinary abdominal section. Fig. 754. — Cholecystenterostomy by the Murphy Button:— A, Male button within gall- bladder ; B, Female button within duodenum. Comment. — (1) Union of the gall-bladder to portions of the intestine be- tween the usual site of anastomosis (duodenum, or upper part of jejunum) and the hepatic flexure of the colon, is more apt to be followed by volvulus. (2) 1028 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Prior to completing the anastomosis, the interior of the gall-bladder should be examined for calculi, and the ducts palpated. (3) The contents of the duo- denum should be pressed away from the site of anastomosis and controlled by double clamps during the operation. (4) If more convenient, the smaller female button may be placed in the gall-bladder. CHOLECYSTENTEROSTOMY BY SIMPLE SUTURING. Description. — The operation is the same as Cholecystenterostomy by the Murphy button, except that no artificial device is used in accomplishing the union other than simple suturing, aided by special clamps, or small curved intestinal clamps. Preparation — Position — Landmarks — Incision — Operation. — Are, in the main, the same as those just described. Having brought the gall-bladder and intestine (preferably the duodenum) into convenient position for manipu- lation by means of special clamps, the two viscera are united in exactly the same manner as in entero-enterostomy by lateral anastomosis (see page 862). A posterior row of continuous Lembert sutures is introduced through the serous and muscular coats of the two viscera, along their posterior aspects, leaving the threads long at both ends. The two organs are then incised — and the lips of the incision whipped together by an overhand continuous suture of all the coats — after which, the line of continuous Lembert suturing is carried around the anterior aspect of the wound. The opening made in the gall-bladder and intestine is from 1.2 to 2 cm. (£ to f inch) long. The parts are returned to the abdomen, which is closed in the usual manner. Comment. — (1) The above method of suturing is simpler than to first make the incision and suture together the mucous coats alone — followed by suturing of muscular and serous coats. (2) Sometimes, though rarely, union by simple suturing is done in two, or even in three stages; — (a) In Two Stages; — The gall-bladder and intestine are sutured together by continuous sutures of serous and muscular coats, approximating an area of each equal to about 2.5 by 3.7 cm. (1 by i^ inches). These viscera are then sutured to the bottom of the abdominal wound and the wound packed for several days. An incision is then made through the intestine — and through this an incision is made through the adherent walls of gall-bladder and intestine. The incised wound in the intestine is then closed — and the abdominal wound also closed, (b) In Three Stages ; — The gall-bladder and intestine are sutured together, as in the above. The gall-bladder is then incised and its edges sutured into the abdominal wound (after closing the excess of abdominal wound from the ends). After several days the adherent wall between gall-bladder and intestine is incised through the fistula — which fistula is then allowed to close, or is closed by a plastic operation. CHOLECYSTO-LITHOTRITY. Description. — Consists in the exposure of the gall-bladder and crushing of the calculi from the outside, as they lie within the gall-bladder — by means of the fingers or special forceps with protected blades — and manipulating the fragments on into the cystic duct. The operation is sometimes applicable in cases of soft and friable stones. Fragments of hard stones are apt to wound the gall-bladder. Small stones may sometimes be pushed or worked on out of the gall-bladder into the cystic and common duct without being broken. CHOLECYSTECTOMY. IO29 The steps of the operation are the same as those for Cholecystotomy, up to the point of exposing the gall-bladder — after which it is a process of palpation and manipulation with the fingers, or special protected forceps. CHOLECYSTECTOMY. Description.— The total excision of the gall-bladder. Indicated when the gall-bladder or the cystic duct is considerably changed by disease, or where contracted and deep-lying, making difficult the approximation of the gall- bladder to the abdominal wall (cholecystotomy) ; and where the hepatic and common bile-ducts are patulous. Preparation — Position — Landmarks — Incision. — As for Cholecysto- tomy by vertical subcostal incision. Fig. 755.— Cholecystectomy by Vertical Subcostal Incision: — A, Liver displaced upward, exposing fossa of gall-bladder; B, Gauze pad protecting neighboring structures; C, Longitudinally incised peritoneum over gall-bladder being separated from the bladder by blunt dissection ; D, Liga- ture placed around pedicle of gall-bladder. Operation. — (1) Having exposed the subhepatic region by thorough re- traction, aided by the reversed Trendelenburg position, and packed off the neighboring vicinity with gauze, the gall-bladder is isolated (Fig. 755). (2) The peritoneum binding the gall-bladder to its fossa is incised over the pro- minent inferior surface of the gall-bladder — either in one straight line in the long axis of the bladder, from fundus to cystic duct — or in the form of an ellipse (especially where the bladder is large), the two limbs meeting at the fundus and cystic duct. (3) This incision having passed simply through the 1030 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. serous covering into the underlying connective tissue, the peritoneum is sepa- rated from the gall-bladder by blunt dissection, from fundus to neck, and throughout its width, and retracted to either side. Having dissected and peeled back the peritoneal covering, the gall-bladder itself is then dissected, or shelled out, by blunt dissection from its fossa and freed to its pedicle — working with curved blunt scissors and a blunt dissector, and keeping strictly in the connective-tissue plane. The pedicle, formed by the cystic duct and vessels, is well isolated, doubly ligated with chromic gut, and divided between the ligatures, the adjacent structures having been protected with gauze packing. The end of the divided duct may be immediately cauterized. (4) The divided peritoneum, which has been separated and retracted in the form of two flaps, is now sutured with gut over the fossa of the gall-bladder. (5) The abdomen is closed — generally without drainage. Comment. — (1) It may be necessary to separate adhesions by blunt dis- section, or by division between ligature. (2) If much distended, the gall- bladder should be first partially emptied by aspiration through a fine needle — the needle wound being subsequently puckered together with a purse-string ligature before manipulating the bladder. (3) Avoid the inclusion of the hepatic and common ducts. (4) The abdominal wound may be closed in part only, leaving a temporary drain. (5) The cystic duct and artery may be tied or clamped at the neck of the gall-bladder first and the organ removed from behind forward — thus giving, possibly, a clearer, because less bloody, field for the most difficult stage of the operation. The peritoneum is then raised from the gall-bladder from below and the viscus enucleated in the act of working forward. The incised peritoneum is sutured over the gall-bladder bed. IX. THE GALL-DUCTS. SURGICAL ANATOMY. Hepatic Duct. — Formed by right and left bile-ducts uniting generally at their emergence from the liver. Length from 3 to 5 cm. {i\ to 2 inches). Diameter, about 4 mm. (nearly f\ inch). Passes downward in right border of gastro-hepatic omentum, having vena cava behind and hepatic artery to left. Unites with cystic duct to form common bile-duct. Cystic Duct. — Begins at neck of gall-bladder — is directed slightly to left — and ends at its junction with hepatic duct at an acute angle, to form common bile-duct. Length, 2.5 to 4 cm. (1 to 1^ inches). Passes downward, back- ward, and to left in gastro-hepatic omentum — having hepatic artery to left and portal vein behind. Common Bile-duct. — Formed by union of hepatic an4 cystic ducts. Length, about 7.5 cm. (3 inches), dependent upon site of union of cystic and hepatic ducts. Diameter, about 6 mm. (nearly \ inch). Its course and re- lations are the following; — continuing the direction of hepatic duct, it passes downward and backward in hepato-duodenal portion of gastro-hepatic liga- ment, having hepatic artery and its gastro-duodenal branch to left, and portal vein behind and between — enters right pancreatico-gastric fold behind first portion of duodenum (superior curve), then passes between second portion of duodenum (descending part) and head of pancreas — and ends by entering posterior and inner wall of descending portion of duodenum (being crossed on the way by the pancreatico-duodenal artery), running obliquely for about 2 cm. (f inch) through its walls and opening upon a papilla of mucous membrane about 10 cm. (4 inches) from the pylorus. The pancreatic duct joins the com- mon bile-duct just before its termination. SUPRADUODENAL CHOLEDOCHOTOMY. 1031 SURFACE FORM AND LANDMARKS. INSTRUMENTS. See these headings under the Liver and Gall-bladder. GENERAL SURGICAL CONSIDERATIONS. The common bile-duct lies in the hepato-duodenal ligament, near its right free margin — in the free border which constitutes the fold at the entrance of the foramen of Winslow — the hepatic artery lying nearby to its left — and the vena porta behind and between the common duct and hepatic artery — owing to which important relations, the ducts should be fully exposed before being opened. (See Fig. 756.) Where more than usual room is required, resection of the right costal arch may be performed. No suture should be used which will come within the lumen of any of the ducts — for fear of forming the nucleus of calculi. The exact nature of the operation to be done is frequently not known until the gall-bladder and ducts are exposed and examined Fig. 756.— Hepato-duodenal Ligament and Contained Structures: — A, Ligamentum hepato-duodenale ; B, Common bile-duct; C, Vena porta? ; D, Hepatic artery; E, Gall-bladder; F, Arrow within foramen of Winslow. SUPRADUODENAL CHOLEDOCHOTOMY. Description. — Incision of common bile-duct above the duodenum. Gen- erally performed for the removal of calculi. Preparation — Position — Landmarks. — As for exposure of gall-bladder by vertical subcostal incision, page 1024. Incision. — The site of operation is often reached in the course of some other operation about the liver or gall-passages. Where especially planned for the removal of a stone in the common duct, a vertical incision may be made along the outer border of the right rectus, its upper end being extended along the upper part of the subcostal border (the Robson incision, Fig. 751). A curved incision may also be used — from just below the outer aspect of the ensiform cartilage, thence parallel with and about 1.2 cm. (^ inch) from the costal arch to a point about 1.2 cm. {\ inch) above the end of the eleventh rib. In either of these incisions only the ninth nerve need be divided. Fenger gives a vertical incision, combined, if necessary, with a transverse addition. I032 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Operation. — (1) The abdomen having been opened — the liver retracted well upward — the intestines depressed (or having fallen away in the reversed Trendelenburg position) — the gall-bladder is exposed. (2) The bladder is then first palpated for calculi — and the cystic and hepatic ducts are followed down until the common duct is reached — manipulating in the manner de- scribed below. (3) All adhesions present should be broken down by blunt dissection, or divided between chromic gut ligatures. These adhesions are apt to be found between gall-bladder, stomach, transverse colon, great omentum, and duodenum. The entire area should be packed off with gauze. By means of a piece of gauze the liver and gall-bladder are grasped, drawn down from under the costal arch, and rotated in such a way as to stretch and make promi- nent the common duct and bring it nearer the surface. (4) After tracing Fig. 757 — Choledochotomy and Choledochorrhaphy, by Vertical Subcostal Incision in Right Linea Semilunaris: — A, Foramen of Winslow, leading behind hepato-duodenal liga- ment ; B, Distended common bile-duct incised over a calculus. Lembert interrupted sutures are shown placed ready to be tied after extraction of stone; C, Position of vena portae ; D, Position of hepatic artery. down the cystic duct, expose the anterior surface of the hepato-duodenal ligament down to the duodenum — demonstrate the free border of the liga- mentum hepato-duodenale to the right — insert the left index-finger into the foramen of Winslow (with pulp of finger forward) and left thumb upon the anterior surface of this ligament — follow its structure downward to the duo- denum, having, between the fingers, the common duct to the right, the hepatic artery to the left, and the vena portae on a plane posterior to and between the other two. (5) Having located the stone by the above method of palpation, especially guard against its slipping into the hepatic duct from between the thumb and index — by pressing it forward against the anterior wall of the duct and steadying it in that position. (6) Incise the duct in its long axis, directly SUPRADUODENAL CHOLEDOCHOTOM V. 1Q 33 over the stone, for a distance of from i to 3 cm. (J to i\ inches) , as indicated (Fig. 757) . The escaping bile is caught in gauze — and the presenting calculus removed with special forceps or scoop. Having removed the stone, the com- mon duct should be examined for other stones — by means of the hnger or probe — and from the duodenum to and into the cystic and hepatic ducts. (7) Hav- ing extracted the stone, the wound in the duct is generally closed — either by simple suturing — or by suturing aided by some such mechanical device as one of Halsted's hammers ( which are of various sizes), (a) Closure Aided by Halsted's Hammer; — Preliminary to the incision, two traction-sutures are inserted on either side of the line of the future incision, through the outer coats of the duct — for the purpose of aiding the manipulation. Having evacuated the duct and examined its cavity for other calculi, Halsted's hammer is in- troduced by insinuating its longer arm into the incised wound — the hammer portion distending the duct and rendering it easier to suture its walls over the round, firm form — which also obstructs the flow of bile during the operation. (Fig. 758.) The opening is finally closed either by Halsted's mattress sutures passed through the outer coats of the duct, — or two rows of ordinary sutures may be used — an inner row of interrupted gut sutures through the muscular and external coats, without penetrating the mucous membrane — and an outer row of interrupted silk sutures through the serous surfaces. The peritoneum covering the anterior aspect of the hepato-duodenal ligament is included in the suturing, (b) Closure by Simple Suturing; — Having incised the duct over the stone, before the stone is removed the first row of sutures, inserted upon a small, fully curved needle through the muscular and external coats, is passed while the stone is still in situ (using the stone as a distender of the gut) — these stitches are then held apart and the stone is withdrawn between them — after which the first row is tied and an outer row of interrupted silk sutures is passed through the serous surfaces, as above described (Fig. 757). (8) In completing the operation, a rubber drainage- tube may be carried down to the wound in the duct, and this sur- rounded by gauze — the abdominal wound being closed except where the drainage comes out — consti- tuting indirect drainage. Or a drainage-tube may be carried into the wound of the common duct, or into the gall-bladder, or into the cystic duct if the gall-bladder have been removed (direct drainage). Comment. — (1) If distended, the gall-bladder or duct should first be partly aspirated. (2) Where choledochotomy with suture of the duct is done, cholecystostomy is fre- quently done at the same time, to relieve the tension upon the stitches and as a drain. (3) It is easier to suture a thickened duct, and harder to suture a thin one. If it be impossible to suture the duct, insert a small rubber drainage-tube into the opened duct and pack around it with gauze. (4) If the stone can be shifted, it is better to shift it nearer the duodenum before incising the duct — as there is less danger of wounding the vena portae. (5) Fig. 758.— Choledochorrhaphy, Aided by Halsted's Hammer : — The hammer is shown in situ during placing of sutures— and is withdrawn prior to tightening last of the sutures. 1034 OPERATIONS UPON THE AHDOMINO-PELVIC REGION. After incising the duct, it may be necessary to crush the stone in situ by inserting special crushing forceps through the wound in the duct and then removing the debris with scoop or forceps. (6) If possible, ascertain with the probe whether duct into the duodenum is patulous. RETRODUODENAL CHOLEDOCHOTOMY. iiaasler's operation. Description. — Calculi have sometimes proved inaccessible by the ordinary route of approach — and have been removed by exposing and incising the common duct behind the duodenum. An attempt, however, should first be made to dislodge such calculi upward into the more readily accessible part of the duct. Preparation — Position — Landmarks — Incision. — As in supraduodenal choledochotomy. Operation. — Having opened the abdomen and brought the field of opera- tion into access, the common duct is exposed. The parietal peritoneum of the posterior abdominal wall is then incised vertically, about 4 cm. (1^ inches) to the right of the duodenum. The peritoneum is raised by blunt dissection until the second portion of the duodenum is reached — which is then displaced to the left, thus exposing its posterior surface. The second portion of the common duct is located, covered by, or in a groove of, the pancreas — and is exposed by blunt dissection — and incised over the calculus. The duct is then explored and sutured as in the preceding operation — and drainage of its bed established. TRANSDUODENAL CHOLEDOCHOSTOMY. kocher's operatiox. Description.- — The second or third part of the common duct is opened to remove an impacted calculus — by incising the anterior and posterior walls of the second portion of the duodenum and the portion of the pancreas sur- rounding the duct. Preparation — Position — Landmarks — Incision. — As for supraduodenal choledochotomy. Operation. — The abdomen is opened — the liver elevated and retracted — and the site of the common duct and duodenum exposed and packed off. The duodenum is mobilized by a vertical incision about 4 cm. (ij inches) to the outer aspect of the duodenum— and from this incision the peritoneum is detached by blunt dissection up to the duodenum. The duodenum, together with the head of the pancreas, is further freed toward the middle line. A couple of fingers are then inserted behind the duodenum, or through the foramen of Winslow, and the bowel elevated into the abdominal wound, the hold upon the intestines being maintained throughout the operation. After the stone has been steadied an incision is made through the walls of the duodenum, in the long axis of the intestine, and the two edges of the intestinal wound held apart by special clamps — the intestinal outflow being caught upon gauze (Fig. 759). The interior of the intestine is examined — the stone is felt through its posterior wall — and the opening of the ampulla is located somewhat lower down. In the rare cases in which the stone can be protruded through the ampulla, further incision is unnecessary. Otherwise, the incision CYSTICOTOMY, I°3S is made directly over the stone, in the long axis of the intestine, through its posterior wall. When the knife reaches the calculus, two catgut stitches are carried through the lips of the intestinal wound, one on either side — to be first used as tractors and subsequently as sutures. The intestinal incision is now lengthened and the stone removed with scoop or forceps. A third stitch may be carried through the upper angle of the wound, including duct, pan- creas, and intestinal wall. The outflow of bile is caught, and the duct is explored toward the gall-bladder, by both finger and probe. Having com- pleted the operation, the traction-sutures are tied as plain sutures and additional ones inserted, if necessary, using catgut and carrying them through all the coats. If the duct has been incised in its interstitial part, no suturing is needed — but sutures should be placed if the incision has been higher. The incision through the anterior wall of the duodenum is first sutured with through- and-through sutures of all the coats, followed by a seromuscular suture. The site of suture may be reinforced with an omental graft. The duodenum is now allowed to fall back into place — and the abdomen closed — generally without drainage, unless cholecystotomy or cholecystectomy have been done. Fig. 750. — Transduodenal Choledochostomy: — The anterior wall of the duodenum is incised — showing the papilla of the common duct and the incision into the duct through the posterior wall of the duodenum. Comment. — If the calculus be impacted in the interstitial portion of the common duct, the incision is made into but not through the posterior wall of the duodenum. If the calculus be impacted at the orifice of the ampulla, and cannot be extracted from the orifice with forceps, the margin of the ampulla is incised and the calculus then withdrawn (Ampullary Choledoch- otomy of McBurney). CYSTICOTOMY. Description. — The incision of the cystic duct — an operation performed for the removal of a calculus from the cystic duct — when not removable through the gall-bladder or the common duct. Preparation — Position — Landmarks — Incision. — As for Supraduodenal Choledochotomy, page 1031. Operation. — The technic here is practically the same as employed in 1036 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. choledochotomy. By rotation and traction upon the liver the neck of the gall-bladder and the cystic duct are exposed. The duct and its calculus are steadied in the wound — and an incision made over the stone through the duct wall. If further exploration of the gall-bladder tract prove it to be clear, the wound in the cystic duct is closed — by a continuous fine catgut suture of the outer coats (avoiding the mucosa) — followed by the suturing of the serosa with fine silk or celluloid thread. The gall-bladder is drained — and the abdomen otherwise drained. HEPATICOTOMY. Description. — The incision of the hepatic duct — an operation sometimes performed for the removal of a calculus from the hepatic duct — when not removable by downward displacement and incision of the common duct. Preparation — Position — Landmarks — Incision. — As for Supraduodenal Choledochotomy, page 103 1. Operation. — The technic here employed is similar to that just given for incising the cystic duct. The wound in the duct is sutured in the same manner — and drainage of the gall-bladder established. X. THE SPLEEN. SURGICAL ANATOMY. Description and Situation. — Situated chiefly in left hypochondriac region — lying above left kidney and splenic flexure of colon — between con- cavity of diaphragm to left and behind, and fundus of stomach to right and in front — corresponding, in axillary line, with ninth, tenth, and eleventh left ribs. It lies obliquely from above downward and from within outward. Its length is about 12 cm. (4! inches) — breadth, 8 cm. (3 \ inches) — thickness, 3 cm. {\\ inches). The peritoneum entirely surrounds the spleen except at its hilum — which is at the center of the internal surface (between the renal and gastric portions of internal surface) through which the arteries and nerves enter and the veins and lymphatics emerge. Its pedicle is formed by the reflection of peritoneum over the vessels at the hilum. The diaphragm separates all parts of the normal spleen from the parietes. The spleen may be absent, or there may be from one to twenty more or less rudimentary spleens present. Surfaces and Borders. — Phrenic surface; lies beneath left ninth, tenth, and eleventh ribs — peritoneum, diaphragm, portions of left pleura and lung, the costo-phrenic sinus (and sometimes left lobe of liver) intervening. Renal part of internal surface; touches superior and external part of left kidney, and generally the suprarenal capsule. Gastric part of internal surface; in contact with posterior wall of a filled stomach. Basal surface (lower outer end) ; in contact with splenic flexure of colon and phreno-colic ligament (and often with tail of pancreas). Anterior margin; situated between diaphragm and stomach. Posterior border; between diaphragm and left kidney. Superior end ; on level with tenth dorsal vertebra, approaching within 2 to 3 cm. (f to 1 \ inches) of spinal column. Reaches to level of ninth dorsal spine. Inferior end; limited anteriorly by costo-clavicular line (connecting left sterno-clavicular articulation with anterior end of eleventh rib). Reaches to level of first lumbar spine. GENERAL SURGICAL CONSIDERATIONS. 1037 Relations. — Externally and Superiorly; peritoneum; diaphragm; left ninth, tenth, and eleventh ribs; costo-phrenic sinus; left lung and pleura; pos- terior thoracic muscles. Inferiorly; splenic flexure of colon; phreno-colic ligament; tail of pancreas (sometimes). Internally; stomach (posterior sur- face of fundus) ; left kidney and capsule; tail of pancreas; spinal column (some- times). Relations of Spleen to Thoracic Cavity. — Upper third of spleen is covered by left lung, — middle third is in contact with left costo-phrenic sinus, — lower third passes below lower pleural limit and costal origin of diaphragm. Ligaments and Fixations of Spleen.— Gastro-splenic omentum — from hilum to fundus of stomach. Phreno-splenic ligament— from upper end of spleen to diaphragm. Spleno-renal ligament — formed partly by greater and lesser peritoneal sacs — contains the splenic vessels. Phreno-colic ligament — affords support, though not connected with spleen. Pancreatico-splenic liga- ment — present when tail of pancreas does not reach spleen. Spleno-colic liga- ment — from basal aspect of spleen to colon (sometimes present). Arteries. — Splenic. Veins.— Splenic. Lymphatics. — Empty into glands at hilum. Nerves. — From cceliac plexus and right pneumogastnc. SURFACE FORM AND LANDMARKS. Upper end of spleen lies opposite level of ninth dorsal spine — lower end opposite level of first lumbar spine. The inner border comes within 3.8 to 5 cm. (ih to 2 inches) of the median plane of the body. The outer border lies just posterior to the mid-axillary line — not coming further forward than a line joining the left sterno-clavicular articulation and the anterior end of the eleventh rib. The spleen corresponds with the ninth, tenth, and eleventh left ribs — separated from them by the diaphragm and, in its upper part, also by the lung. Its long axis about corresponds with the line of the left tenth rib. It slightly overlaps the outer border of the left kidney below. GENERAL SURGICAL CONSIDERATIONS. The spleen may be exposed in several ways — by oblique subcostal incision parallel with costal arch; by vertical incision in left linea semilunaris; by ver- tical incision to left of left linea semilunaris; by median abdominal incision; by intercostal incision; by partial excision of one or more ribs, followed by sub- pleural or transpleural exposure of spleen. If more room be needed, any of the vertical incisions may be increased by a transverse or curved incision extending toward flank or median line, from the lower part of the vertical incision. Where an abdominal incision is first made for pure exploratory purposes, the median abdominal incision is probably best. There is general similarity in the technic of hepatic and splenic operations. The freest exposure of the splenic region, as of the hepatic region, is secured by the temporary resection of the costal cartilage (page 1017). 1038 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. INSTRUMENTS. See those used in operating upon the Liver. EXPLORATORY PUNCTURE OF SPLEEN. Exploratory puncture of the spleen is macte in the same general manner, and with the same general precautions, as is exploratory puncture of the liver (see page 1008) . As in the case of the liver, exploratory puncture of the spleen is rarely warrantable, owing to the risks of sepsis and hemorrhage — and should not be used except in the case of tumors, which are almost certainly adherent to the abdominal wall, thus shutting off the general peritoneal cavity— and especially in those projecting below the ribs. The site of the tumor and the general relations given under Surgical Anatomy will serve as the guide for the site of puncture — the puncture itself being made exactly as it is in the case of the liver. SPLENOTOMY BY OBLIQUE SUBCOSTAL INCISION. Description. — Incision of the spleen — by an incision just below and paral- lel with the left costal arch. The spleen may be exposed by any of the incisions mentioned under General Surgical Considerations — one of the first three being preferable. The operation may be done in one stage- — or in two stages (after adhesions have formed) — and is generally resorted to for the liberation of pus. Preparation — Position. — As for Median Abdominal Section. Landmarks. — Lower border of left costal arch; left linea semilunaris; position of tumor, if any. Incision. — Oblique incision parallel with and about 1.3 cm. (\ inch) below left costal arch, with its center over the site of spleen (the inner border of which comes to within 4 to 5 cm. [1^ to 2 inches] of the median plane — and whose outer border extends just posteriorly to the mid-axillary line). Operation. — (1) Having opened the abdomen in the same manner as in Hepatotomy by the same incision, the spleen is isolated and brought into the wound as far as possible and the neighboring field packed off with gauze. In dealing with fluid collections within the spleen substance, the tension should be lessened by partial aspiration of the contents preliminarily to incision of the viscus, after the organ is brought into the wound. (2) The operation may be completed in one or in two stages; — (a) In One Stage: — Having been brought as near the surface of the wound as possible, and after packing off the vicinity as securely as possible, the spleen is incised in the same general manner and with the same precautions as in the case of the liver (seepage 10 12). In the case of a fluid collection, the edges of the pus or cyst cavity are then seized and brought forward and sutured into the lower plane of the abdominal wound (which is closed in from either end for a part of the distance) — the sutures passing through spleen substance and capsule at some distance from the wound in the viscus, on the one hand, and through parietal peritoneum and part of the thickness of the lower plane of the lips of the abdominal wound, on the other — thus approximating the peritoneum of the spleen and the perito- SPLENOPEXY. IO39 neum of the abdominal wall all around, (b) In Two Stages;— The spleen is brought into the wound and the parietal peritoneum and edges of the abdo- minal wound are stitched in an elliptical manner to the serous surface and to the substance of the spleen — the wound of the abdomen, which is partly closed from one or both ends, is then packed with gauze and two or three days given for union — after which the spleen is incised. x\ll incisions into spleen sub- stance are planned so as to avoid, as far as possible, the large vessels of the viscus. (3) Where the spleen has been incised for exploration simply, and nothing has been found, splenorrhaphy is done and the abdomen closed. Comment. — When indicated, the costal cartilages may be temporarily resected (page 10 17). EXPOSURE OF SPLEEN BY SUBPLEURAL ROUTE BY PARTIAL EXCISION OF ONE OR TWO RIBS. Description. — For the general description, see the corresponding opera- tion upon the liver. The ribs chosen are usually the tenth and eleventh (and the former when only one rib is excised) — the site of excision lying mid- way between a point about 4 to 5 cm. (1^ to 2 inches) from the median plane, and a point just posterior to the mid-axillary line. The steps of the operation are the same as those for the subpleural exposure of the liver by the partial ex- cision of one or more ribs (see page 1014). SPLENORRHAPHY. Description. — Suturing of the spleen. Generally resorted to for incised and lacerated wounds, and for approximating surfaces after partial splenec- tomy. The route of approach is often determined by a pre-existing wound or operation — if not, the oblique subcostal incision parallel with the left costal arch gives the best exposure. For the method of approaching the spleen, therefore, see Partial Splenectomy by Oblique Subcostal Incision parallel with the Ribs, page 1040. For the details of the operation, after exposing the organ, see Hepatorrhaphy, page 10 19, the technic being practically the same. SPLENOPEXY. Description. — Bv Splenopexy is meant the fixation, generally by means of suturing, of a displaced spleen back to its original site, or to another site. Indicated in wandering" spleen (Splenoptosis). Preparation — Position — Landmarks. — As for Partial or Total Splen- ectomy, according to the incision adopted. Incision. — The organ may be approached by a vertical incision in the left linea semilunaris; by an oblique subcostal incision; or by a median vertical incision. The first incision given provides the most convenient approach to the parts involved. The median incision has been used by Rydygier, who in- troduced the operation. 1040 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Operation. — Having opened the abdomen, isolated and exposed the dis- placed spleen, its position, its environments, and the laxity of its ligaments are studied, and a site for its fixation decided upon, (a) Rydygier, having opened the abdomen in the median line, elevated the spleen to a proper height— then detached from the parietes sufficient peritoneum to form a pocket — dividing the parietal peritoneum with a transverse upward convexity, detaching it down- ward from the abdominal wail. The lower half of the spleen was then placed in this pocket — the parietal peritoneum was sutured to the underlying tissues along the lowest line of separation (to prevent further separation) — and the free border of the parietal peritoneum was attached to the gastro-splenic omentum above, (b) Bardenhauer entered the abdominal cavity by a some- what rectangular incision, made by a vertical incision extending from the ribs to the superior iliac crest, the upper line of which was extended transversely forward along the inferior border of the tenth rib. The flap thus included was detached downward to but not through the peritoneum and turned inward — the peritoneum was then incised sufficiently to enable the spleen to be drawn through edgewise. A strong purse-string suture of silk, previously placed around the margin of the peritoneal opening, was then drawn so as to pucker it around the pedicle but not constrict it. A suspensory silk suture was passed under the end of the spleen and over the tenth rib as a sling. Other sutures were passed where indicated. The spleen was thus practically extraperito- neally placed. The abdomen is closed without drainage. PARTIAL SPLENECTOMY BY SUBCOSTAL INCISION PARALLEL WITH RIBS. Description. — Excision of part of spleen. Generally done for removal of tumor involving a portion of the organ. Preparation — Position. — As for median abdominal section. Landmarks. — Lower border of left costal arch — or modified by the position of a tumor, if one be present. Incision. — Obliquely curved incision parallel with and about 1.2 cm. (^ inch) below the left costal arch, with its center over the site of the spleen (whose inner border extends to within 4 or 5 cm. [1^ or 2 inches] of the median plane, and whose outer border extends just posteriorly to the mid-axillary line), — or, if a tumor be present, directly over the tumor. Operation. — (1) Having incised the skin and fascia; the external oblique transversely; separated the internal oblique in the cleavage line; retracted what nerves could be spared; divided the transversalis obliquely; and the trans- versalis fascia, subserous areolar tissue, and peritoneum in the line of the original wound, the abdominal cavity is opened. (2) Having retracted the wound and brought the spleen as far into the opening as possible, the area of the spleen to be removed, including the tumor, if any, is now to be surrounded in sections by interlocking silk or chromic gut ligatures and tightened — or other form of ligature which will compress the entire area to be circumscribed and removed. When the entire portion to be removed has been thus circum- scribed by a compressing ligature, the tied- off area is excised with curved scissors, or by the actual cautery — further ligating any portions requiring lig- ature. Where the area to be removed has any ligamentous attachments corre- sponding to it, or adhesions connected with it, these are first tied off and divided between ligatures. (3) Where possible, the surfaces left by the partial ex- TOTAL SPLENECTOMY. IO41 cision should be approximated by deeply placed sutures. See Splenorrhaphy, page 1039. The spleen is then dropped back into place — and the abdomen generally closed without drainage. Comment. — Where the tumor or tumors are small, small wedge-shaped masses may be removed and the edges approximated by deeply placed sutures, which both coapt the surfaces and control the hemorrhage — thus obviating any previous ligation of the spleen substance. TOTAL SPLENECTOMY BY VERTICAL INCISION IN LEFT LINEA SEMILUNARIS. Description. — Excisions of entire spleen. Resorted to in some cases of movable spleen, injury of the organ, simple hypertrophy and in some tumors. Preparation. — As for Median Abdominal Section. Position. — As for Median Abdominal Section — the position of the surgeon to the right of the patient giving better access to and control of the pedicle. Landmarks.— Left linea semilunaris. Incision. — Vertical incision in left linea semilunaris, beginning near the left costal arch and extending downward as far as necessary. (Such an incision Fig. 760. — Total Splenectomy: — The spleen is exposed by chondroplastic resection of the chest-wall and drawn forward. The pedicle is clamped preparatorily to ligation in sections. (Modified from Guibe.) will divide the ninth nerve transversely on a line with the lower border of the ninth rib.) The spleen may also be exposed by one of the incisions given under General Surgical Considerations. Operation. — (1) Having incised abdominal wall and opened the peritoneal cavity and retracted the lips of the wound, the spleen is located and brought as prominently forward as possible. If any adhesions be found between the spleen and neighboring viscera, or the abdominal wall, these are separated by blunt dissection, or divided between double ligatures— carefully avoiding in- jurv to the spleen. (2) Freeing Splenic attachments (ligaments) and Enu- cleation of the Spleen; — The phreno-splenic ligament is best reached and 66 1042 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. treed, as suggested by Jonnesco, by covering the spleen with a square of gauze, to avoid slipping of fingers, and then depressing the spleen downward and to the right, while an assistant draws the left lower edge of the abdominal wound to the left — thus exposing the bed of the spleen and vault of the diaphragm and the phreno-splenic ligament, which latter is divided between double ligatures. (3) Following this, the remaining ligaments and attachments of the spleen to its bed are freed, commencing at its lower aspect. The spleen is then enu- cleated and delivered through the abdominal wound. The gastro-splenic ligament is the omentum surrounding the pedicle, and therefore a part of the pedicle — and is treated in ligating the pedicle. (4) Ligation and Division of the Pedicle (Fig. 760) ; — The spleen having been delivered, is then turned toward its left and made to rest upon its convexity, thus exposing its pedicle. The constituent vessels of the pedicle, beginning with the most important, should all be separated and each doubly ligated and divided between the two ligatures, which should be of strong silk. This is the most important step of the operation. Separate ligation is better than ligation en masse, or in two or three divisions or groups of vessels — though the latter may be done in cases of haste or other need. Traction upon the constituents of the pedicle, which are easily ruptured, is to be avoided. Adherence of the splenic artery and vein to the tail of the pancreas often adds to the difficulty of isolation and separate liga- ture of these vessels. (5) Hemostasis of the Splenic Bed; — Having removed the spleen, its bed is carefully examined — and every bleeding point ligated with chromic gut. Especially examine the pillar of the diaphragm, where the phreno-splenic ligament has been divided — after drawing the stomach and intestines to the right. Limited bleeding surfaces may be controlled by su- turing peritoneum over them, where possible. (6) The abdominal wound is closed — unless drainage be specially indicated, or there should be uncertainty as to the hemostasis. Full elastic dressings are applied so as to compress the region formerly occupied by the spleen. Comment. — (1) It is better to ligate the pedicle at once — than to clamp first and then ligate. (2) Some surgeons, especially in very large spleens, pre- fer to ligate the pedicle first, with the spleen in situ — then draw the spleen down and tie off the gastro-splenic omentum — then deliver the spleen. (3) The vessels are often enormously enlarged — and the veins are often especially thin. (4) Tie the arteries first — then the veins — as less blood is thus lost. (5) See that ligatures, in tying off the pedicle, pass between rather than through the vessels — passing through connective tissue between the vessels. (6) Some surgeons advise first clamping and separating the gastro-splenic ligament — in order to enable the spleen to be lifted up and the pedicle better exposed (J. Wesley Bovee — but adds that this is often impossible in marked hypertrophy — in which cases the vessels are ligated in the order encountered). (7) Some surgeons, in dealing with less accessible pedicles, transfix the entire splenic omentum with double ligature, tying each half separately — then subsequently surround the entire pedicle with another single ligature. The pedicle may be crushed with an angiotribe and then ligated in segments. (8) After exposing the spleen, the hand should be passed between it and the diaphragm and its surface examined — as well as its other aspects, as far as possible. Very ex- tensive and firm adhesions would contraindicate the continuance of the opera- tion. There may be visceral, parietal, and omental adhesions. If much damage be done in separating adhesions, temporary drainage is indicated. (9) Practise no traction upon the pedicle, both because of the friable vessels and because of the general bad symptoms which are apt to supervene from SURGICAL ANATOMY OF THE PANCREAS. 1043 pressure upon the splenic plexus (from the solar plexus). Relax the pedicle before tightening each ligature. (10) Treatment of the pedicle comes first in importance and treatment of adhesion second. Hemorrhage is the chief dan- ger. (11) If secondary hemorrhage be feared, suture the pedicle to the abdo- minal wall. XI. THE PANCREAS. SURGICAL ANATOMY. Description. — The pancreas lies transversely across the posterior abdo- minal wall, the large vessels intervening between it and the wall — being on a level with the second lumbar vertebra (and sometimes with the first or third) — lying in the epigastric and left hypochondriac regions — having the stomach in front, duodenum to the right, and spleen to the left — and the aorta, vena cava, cceliac plexus, thoracic duct, and diaphragmatic crura behind. It lies behind the posterior wall of the lesser omental cavity and is between the laminae of the mesocolon of the transverse colon. The head of the pancreas is surrounded by the loop of the duodenum. The tail of the pancreas is in contact with the interno-inferior aspect of the spleen. Peritoneum covers the pancreas except upon its posterior surface. The viscus is 15 to 16 cm. (about 6 inches) in length — 3 to 4 cm. (1 \ to ij inches) in width — and 15 to 18 mm. (about h, inch) in thickness. Relations. — Anteriorly; Upper layer of transverse mesocolon; lesser peritoneal sac; transverse colon; gastro-duodenal and pancreatico-duodenal arteries; stomach (posterior surface). Posteriorly; second (sometimes third or first) lumbar vertebra; crura of diaphragm; aorta and right and left renal arteries and superior mesenteric artery; inferior vena cava, superior and inferior mesenteric, splenic, and right and left renal veins; vena porta? ; cceliac plexus; thoracic duct (origin); ductus communis choledochus and pancreatic duct; left kidney (and sometimes its capsule). Superiorly; Duodenum (first part); liver; hepatic and splenic arteries and cceliac axis; solar plexus. Inferiorly; Duodenum, third (preaortic) and fourth (ascending) parts; duodeno-jejunal angle; jejunum; transverse colon; transverse mesocolon (inferior layer); superior mesenteric artery and vein; inferior mesenteric vein; mesentery. Right end; Loop of duodenum. Left end; Interno-inferior aspect of spleen. Fixations. — Held in place by its peritoneal investment and by adjacent viscera and structures to which attached. Pancreatic Duct (Canal of Wirsung). — Begins at left end, or tail, of pancreas — runs thence toward the head of the organ, passing nearer its pos- terior than anterior aspects — after passing the neck, it turns downward, back- ward, and to right, in the head of the viscus, and runs to the left side of the common bile-duct — entering the duodenal wall together and parallel with the ductus communis choledochus — uniting with the latter while running ob- liquely in thewallsof the duodenum — and emptying by a common opening with it upon a papilla of mucous membrane about 10 cm. (4 inches) from the pylo- rus — the opening being covered by a fold of mucous membrane from above. The pancreatic duct is recognized by its white color and its relation to the pancreatica magna artery. Its diameter, near its termination, is between 2 and 3 mm. (about \ inch). The Duct of the Lesser Pancreas (Duct of San- 1044 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. torini) may join the Canal of Wirsung near its termination — or may empty into the duodenum by a separate mouth. Arteries. — Pancreaticae parvae and pancreatica magna from splenic artery; pancreatico-duodenalis superior from gastro-duodenalis of hepatic; pancre- atico-duodenalis inferior from superior mesenteric. Veins. — Accompany the above arteries, emptying into splenic and superior mesenteric veins. Lymphatics. — End in two glands upon superior mesenteric artery. Nerves. — From solar plexus. SURFACE FORM AND LANDMARKS. The pancreas lies obliquely behind the stomach — crossing the spine op- posite the second (or sometimes the first or third) lumbar vertebra. Anteriorly, it lies transversely about 7.5 cm. (3 inches) above the umbilicus. GENERAL SURGICAL CONSIDERATIONS. General Considerations.— (1) Surgery of the Pancreas is limited to op- erations for cysts (which is the most frequent operation done upon theviscus), removal of small tumors, abscess, hemorrhage, localized necrosis, calculi, "annular pancreas," and for the removal of parts of the organ. (2) Anato- mically, complete pancreatectomy is very difficult. (3) Surgically, complete removal with subsequent life has been proved with animals — but not with man. Rapidly fatal diabetes follows complete removal of the organ. (4) Cysts may be incised or excised. In incision, the cyst-wall should be sutured to the abdo- minal wall (marsupialization) — for drainage, and to prevent pancreatic juice from getting into the abdominal cavity. (5) Pancreatic juice in the abdominal cavity is apt to excite peritonitis. (6) If the pancreatic opening into the duo- denum be cut off, a new route must be made, or a pancreatic fistula must be established. (7) Suturing material should not be left in the pancreatic ducts, as such material may form the nuclei of calculi. (8) Wounds of the pancreatic canals should be closed by suture. (9) Always ligate before excising a portion of the pancreas — in order to prevent the escape of pancreatic juice into the peritoneal cavity. (10) Extirpation of the tail and part of the body, or of limited portions of the head, may be done. The tail of the organ is the part most safely operated upon. In operating upon the head, it is necessary to spare the canal of Wirsung, or the duct of Santorini. In removing the whole head of the pancreas, there is no way to restore the flow of pancreatic juice into the intestines. Routes of Approaching the Pancreas. — (1) Transgastrocolic ; — by incising the anterior layers of the gastrocolic omentum between the greater curvature of the stomach and the transverse colon, and thus entering the lesser omental cavity. This is the route to be preferred — and is made by a trans- peritoneal median incision above the umbilicus (Fig. 761). (2) Trans- gastrohepatic ; — by cutting through the gastrohepatic omentum. This approach may be used when the tumor presents above the lower curvature of the stomach, as less frequently happens — and is made by transperitoneal GENERAL SURGICAL CONSIDERATIONS. I°45 Fig. 761. — Transgastrocolic Exposure of the Pancreas: — Between the stomach above and the colon below; the pancreas is seen through an incision in the gastrocolic omen- tum. median incision above the umbilicus. (3) Transmesocolic ; — by incising the inferior layer of the mesocolon. This route may be used when the tumor Fig. 762. — Transmesocolic Exposure of the Pancreas: — Having displaced the omentum and colon upward, the pancreas is exposed through an incision in the mesocolon. lies between the lamina? of the mesocolon — and is made by a transperitoneal median incision above the umbilicus (Fig. 762). (4) Access to the posterior 1046 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. part of the head of the pancreas may be secured by Kocher's method, of "mobilizing the duodenum" described at page 987, Gastroduodenostomy. (5) The pancreas has been exposed by incising anterior and posterior walls of the stomach. Lumbar ; — by incising as for exposure of the kidney. Some- times done for tumors of the tail of the pancreas — and is made by an extra- peritoneal incision as for exposure of the left kidney — or below and along the twelfth rib. (See Fig. 763.) Methods of Drainage of Pancreatic Cavities. — (1) If pus have col- lected in the bursa omentalis, incise in the median line, from the ensiform car- tilage downward, and cut through the gastrohepatic omentum — -after, if possi- ble, first suturing that omentum to the abdom- inal wall. (2) If pus be in the bursa omentalis and extend along the pancreas, resort to Leith's lumbar drainage mentioned below. (3) Lumbar drainage is sometimes necessary where anterior drainage cannot be secured — in such cases Leith suggests a lumbar in- cision made under the left twelfth rib. Through this the finger is inserted by the upper border of the quadratus lumborum, lo- cating the left kidney and its vessels. The tail of the pancreas and the posterior and external wall of the bursa omentalis are placed above and just internal to the renal vessels. The lesser peritoneal cavity can be here entered either through the mesocolon or through the posterior laver of the peritoneum. (4) If pus be retroperitoneal — make a lumbar in- cision as for exposure of the left kidney and reach the site extraperitoneally. Fig. 763. — Illustrating Routes of Approach to Pan- creas:— A, Gastro-colic ; B, Trans-mesocolic ; C, Trans-gas- trohepatico-omental (epigastric); D, Lumbar; E, Pancreas. (Modified from Gray.) INSTRUMENTS. See those given under the Liver (page 1008). Description or abscess of that organ PANCREATOTOMY BY GASTROCOLIC ROUTE. Incision of the pancreas. Generally resorted to for cyst The method of approach is generally one of the PARTIAL PANCREATECTOMY. 1047 first three given under General Surgical Considerations — and is usually the one above mentioned. In the case of a cyst of the pancreas, its walls may be excised, or, as is more generally done, sutured to the abdominal wall and drained. Preparation — Position— Landmarks. — As for Median Abdominal Sec- tion. Incision. — In median line, with its center opposite the lower border of the stomach — which is about 4 cm. (ij inches) above the umbilicus. Where a tumor is evident, the incision is usually placed directly over it. Operation. — (1) Having opened the abdomen as in median section, the gastrocolic omentum is exposed. (2) Having displaced the stomach upward and the transverse colon downward, the gastrocolic omentum is in- cised vertically, between the lower border of the stomach and the upper border of the colon — thus reaching the lesser peritoneal cavity. (3) Having controlled all hemorrhage, the pancreas is reached through the opening in < the omentum and drawn forward into the wound — packing off the vicinity with gauze. (4) If haste be necessary, the operation is completed in one stage, the cyst being incised and its edges sutured into the lower plane of the abdominal wound, having been brought through the rent in the gastrocolic omentum, which is sutured around the opening in the pancreas as well as possible. (5) If haste be unnecessary, the operation is concluded in two stages — the first step being similar to the one just described — the second step, the incision of the viscus, being performed two or tHree days later, after adhesions have formed and the general peritoneal cavity has been shut off. (6) In any event, therefore, drainage is temporarily provided for through the abdominal incision, which is usually accomplished by drainage-tube and gauze packing. Comment. — (1) Adhesions are apt to be found in such cases, and should be separated by blunt dissection, or divided between chromic ligatures, before attempting to expose the pancreas in the wound. (2) In distended cysts or abscesses, partial aspiration should first be done to lessen tension. (3) In some cases adhesions are found walling off the general peritoneal cavity — so that it is possible to incise directly through the abdominal wall and gastrocolic omentum into the pus or fluid cavity. (4) In exceptional cases cysts may be excised in the same manner as small tumors. PARTIAL PANCREATECTOMY BY GASTROCOLIC ROUTE. Description. — Excision of part of the pancreas. Generally performed in connection with removal of a tumor involving a portion of the organ. Preparation — Position — Landmarks — Incision. — As for Pancreatot- omv. Operation. — The pancreas is exposed in precisely the same manner as for Pancreatotomy. The tumor in the organ is sought and brought as well forward as possible. Chromic gut ligatures are then placed deeply around the mass to be removed, so as to completely circumscribe it — thus preventing both hemorrhage and the escape of pancreatic fluid. This having been done, the tumor is excised with curved, blunt-pointed scissors, aided by blunt dissection. If a marked cavitv is left, and it is possible to do so, the walls of 1048 OPERATIONS UPON THE ABDOMINO-PELVIC REGION". the cavity are approximated by dee]) chromic gut sutures. Drainage is then established between the site of the operation and the abdominal wound — and the remainder of the abdominal incision closed. XII. THE KIDNEYS. SURGICAL ANATOMY. Description. — Each kidney lies partly in the hypochondriac, lumbar, epigastric, and umbilical regions — abutting upon the confines of each — resting upon the lower part of the diaphragm and areolar fatty tissue covering the quadratus lumborum and psoas magnus — and placed behind the peri- toneum. They lie embedded in abundant fatty areolar tissue, more abundant posteriorly than anteriorly — constituting the fatty areolar capsule. The right kidney generally (though not always) lies about 7 mm. to 1.3 cm. (3 to \ inch) lower than the left (owing to the presence of the liver upon the right). Vertically, the kidneys correspond to the space between the upper border of the twelfth dorsal and the first and second (and sometimes the upper half of the third) lumbar vertebras — and to the eleventh and twelfth ribs and transverse processes of the first and second lumbar vertebrae — the left kidney generally reaching to the upper border of the eleventh rib — and the right kidney generally reaching to the lower border of the eleventh rib. Outer borders of the kidneys lie from 9 to 10 cm. (3^ to 4 inches) external to the lumbar spines. The superior poles of the kidneys lie about 5 cm. (2 inches), and the inferior poles from 6.3 to 7.6 cm. (2% to 3 inches), from the median line. Inner border of right kidney lies close to the vena cava — the inner border of the left kidney lies within 2.5 cm. or more (1 inch or more) of the aorta. The kidneys average 10 to 12 cm. (4 to 4! inches) in length — 2.8 cm. (i£ inches) in thickness — 6.3 cm. (2^ inches) in breadth — and weigh about 4^ ounces. There may be an irregularity from the normal in the form, size, number, position, and mobility of the kidneys. Peritoneal Relations of the Kidneys. — Posterior surfaces of both kidneys are uncovered by peritoneum. Upon the anterior surface of the right kidney — the hepatic and mesocolic areas are peritoneal — and the areas of the duodenum and transverse colon are non- peritoneal. Upon the anterior surface of the left kidney — the gastric area is peritoneal— the pancreatic area is non-peritoneal — the outer part of the colic area is non-peritoneal, and the inner part of the colic area is peritoneal. Fixations. — (1) Fatty areolar tissue, or capsule — in which the kidneys are embedded — derived from parietal subperitoneal fascia — and separates them from the diaphragm and from the anterior lamella of the lumbar fascia covering the quadratus lumborum and psoas muscles. (2) Vessels, nerves, and connective tissue form the pedicle. (3) Partial covering of peritoneum upon their anterior surfaces and borders. Relations. — Anterior Surface — (a) Right Kidney; — Liver (right lobe) — iperitoneum intervening; ascending colon and hepatic flexure; duodenum (descending part); suprarenal capsule (to slight extent), (b) Left Kidney; — ■ Stomach (fundus) — peritoneum of lesser sac intervening; pancreas (tail); splenic artery and vein; splenic flexure of colon and upper part of descending colon; duodenum (ascending part); suprarenal capsule (to slight extent). Posterior Surface — (Both Kidneys) — Areolar fatty tissue, separating the SURGICAL ANATOMY OF THE KIDNEYS. 1049 kidneys from diaphragm and quadratus lumborum and psoas muscles; pos- terior abdominal wall, corresponding to eleventh and twelfth ribs and trans- verse processes of first and second lumbar vertebrae; diaphragm (areolar tissue intervening); anterior layer of posterior aponeurosis of transversalis (/. e., anterior layer of lumbar fascia), separating kidney from quadratus lumborum; psoas; diaphragmatic, transversalis and iliac fascia lining dia- phragm, transversalis and iliacus; twelfth dorsal, ilio-hypogastric and ilio- inguinal nerves; anterior divisions of first and second lumbar arteries and veins. The nerves and vessels just mentioned all pass downward and out- ward anteriorly to the quadratus lumborum and pierce the transversalis beyond the external border of the quadratus. Note. — The left kidney is in contact with a larger area of diaphragm than the right — and the amount of diaphragm in contact may be increased on both sides when the arcuate liga- ments are attached to the tips of the transverse processes of the second lumbar vertebra. External border — (a) Right Kidney; liver (upper two-thirds); ascending colon (lower third), (b) Left Kidney; spleen (above); descending colon (below). Internal border — (a) Right Kidney; near vena cava; struc- tures of hilum (q. v.). (b) Left Kidney; 2.5 cm. or more (1 inch or more) from aorta; structures of hilum (q. v.). Superior extremity— (Both Kid- neys) — Suprarenal capsule — which encroaches also upon the anterior and in- ternal border and is bound to the kidney by the connective tissue of the sub- peritoneal fascia. Inferiorly — (Both Kidneys) — come within about 5 cm. (2 inches) of the crest of the ilium. Relations of the Pleurae. — The pleurae are in proximity to, but not in relation with, the kidneys. The lower limit of the pleura extends nearly Fig. 764.— Horizontal Section through Upper Lumbar Region :— A, Pancreas; B, De- scending colon; C, Spleen; D, Ascending colon; E, Small intestine; F, F, Kidneys; G, External oblique; H, Internal oblique; I, Transversalis; J, Psoas magnus ; K, CJuadratus lumborum; L, Erector spina; ; M, Latissimus dorsi. (Modified from Esmarch.) horizontally outward from the lower margin of the twelfth dorsal vertebra — crossing the twelfth rib close to its neck — and crossing the eleventh rib about 5 cm. (2 inches) beyond (external to) its neck. Relation of Structures within the Sinus of the Kidney.— (A) Struc- tures; — Branches forming renal artery; branches forming renal vein; lymph- atic vessels and glands; plexus of nerves; ureter; areolar fatty tissue. (B) Order of Structures from Before Backward; — (a) Right Kidney — vein, artery, ureter: — (b) Left Kidney— vein, artery, ureter. (C) Order of Structures from Above Downward; — (a) Right Kidney — vein, artery, ureter:— (b) Left Kidney — artery, vein, ureter. 1050 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Arteries. — Renal, suprarenal, spermatic, and lumbar — all from aorta. Veins. — Renal. Right vein empties directly into vena cava. Left vein receives left spermatic (or left ovarian), left inferior phrenic, and sometimes left suprarenal before emptying into vena cava. Nerves. — From solar and aortic plexuses, semilunar ganglia, splanchnics, and pneumogastrics. Lymphatics. — Superior and deep sets — emptying into lumbar glands. Fig. 765. — Showing the General Relations of the Kidneys to the Vertebr.k and Ribs. (Modilied from Deaver.) Description of Lumbar Fascia. — Consists of three layers, which en- sheathe erector spinae and quadratus lumborum muscles. (1) Posterior or superficial layer : — Layer through which latissimus dorsi, and serratus pos- ticus inferior beneath it, are connected to the vertebral spines (same thing as aponeurosis of those muscles). Latissimus dorsi is connected with it most posteriorly — serratus posticus inferior, lying beneath latissimus dorsi, is con- nected with its upper part anteriorly to latissimus dorsi — and beyond the line along which these two muscles are connected with it (/. e., after these two muscles are free of it) it gives origin to the posterior part of the internal ob- lique — and then passes on (after internal oblique is free of it) to merge with middle layer — thus binding down posterior aspect of erector spinae. It is con- SURFACE FORM AND LANDMARKS. 1051 tinuous with the vertebral aponeurosis. (2) Middle layer: — Arises from tips of lumbar transverse processes — runs outward between quadratus lum- borum in front and erector spina? behind, to fleshy part of transversalis muscle — forming posterior aponeurosis of transversalis. It is joined at outer border of erector spina? by posterior layer — and at outer border of quadratus lum- borum by anterior layer. It is attached, above, to lower margin of last rib — and, below, to ilio-lumbar ligament and adjacent iliac crest. (3) Anterior layer : — attached to front of lumbar transverse processes at inner border of quadratus lumborum — covering anterior surface of quadratus lumborum to its outer border, where it becomes united with middle layer and becomes the trans- versalis fascia. Attached above (forming ligamentum arcuatum externum) to front of transverse processes of first (or second) lumbar vertebra and apex of last rib, and, below, to ilio-lumbar ligament and iliac crest (Figs. 764 and 765J- SURFACE FORM AND LANDMARKS. (1) A horizontal line through the umbilicus will be below the lower border of each kidney — about 2.5 cm. (1 inch) below the right kidney, and 4 cm. (1^ inches) below the left (Quain). According to Treves, such a line will in- tersect the lower portion of the right kidney, and pass below the left. (2) A vertical line from the middle of Poupart's ligament upward to the costal arch will have one-third of the kidney to its outer, and two-thirds of the kidney to its inner side. (3) Posteriorly, the kidney lies within a parallelogram in- cluded within the four following lines: (a) Line parallel with and 2.5 cm. (1 inch) external to the spine, from the lower border of the tip of the eleventh dorsal spine to the center of the tip of the third lumbar spine, — (b) Line drawn outward for 7 cm. (2% inches) at a right angle to, and from the upper end of line "a," — (c) Line drawn outward for 7 cm. (2% inches) at a right angle to, and from the lower end of line "a," — (d) Line parallel with line "a," between the outer ends of lines "b" and "c." (4) The right kidney is generally from 1.3 to 2 cm. (h to f inch) lower than the left, — and will lie that far below the measurements given in (3) above. (5) The upper border of the kidney lies upon a level with the eleventh intercostal space and with the eleventh or twelfth dorsal spine — the right kidney lying somewhat lower. (6) The twelfth ribs divide the kidneys, approximately, into a superior and an inferior half. (7) The lower border of the kidney about corresponds with the center of the spinous process of the third lumbar vertebra. (8) The kidneys are accessible to pressure in the triangle formed by the lower border of the twelfth rib above, and the outer border of the erector spina? internally. (9) The axes of the kid- neys are oblique — from above and within, downward and outward. (10) The superior pole of the kidney is about 5 cm. (2 inches) from the median plane, (n) The hilum of the kidney lies about 5 cm. (2 inches) from the median plane, on a level with the first or second lumbar spine, or opposite the interval between them. (12) The inferior pole of the kidney lies about 6.3 to 7.5 cm. (2% 10 3 inches) from the middle line. (13) The inner border of the upper part of the kidney lies about 2.5 cm. (1 inch) external to the middle line of the body. The inner border lies upon the external border of the psoas — the rest of the kidney lying upon the lumbar fascia covering the quadratus lum- borum. (14) The outer border of the lower part of the kidneys is about 9.5 cm. (3^ inches) from the middle line. The external border lies from 2 to 3 cm. (f to 1 j inches) to the outer side of the external border of the quadratus lum- 1052 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. borum muscle. (15) The ureter expands into the pelvis of the kidney op- posite the lower half of the kidney. (16) Both kidneys rest upon the lower portion of the arch of the diaphragm (as it comes downward between the kid- neys and the twelfth ribs), quadratus lumborum, anterior layer of lumbar fascia, and psoas muscle. (17) The external border of the erector spinae is the superficial guide to the kidney — and the quadratus lumborum the deep guide, —the former muscle marking the twelfth rib about 6.3 cm. (2^ inches) from the median line — and the latter being attached to the inner half of the twelfth rib (Fig. 766). Fig.766. — Relations of Kidneys to Vertebra, Ribs, Pleur/E, and Overlying Muscles: — A, A, Latissimus dorsi ; B, B, Erector spince ; C, C, Quadratus lumborum ; D, External oblique ; E, Internal oblique; F, Transversalis ; G, Lower limit of pleura. Ascending colon is seen on the right, the descending on the left. (Modified from Gray, and from Esmarch and Kowalzig.) GENERAL SURGICAL CONSIDERATIONS. Preparation. — -Bowels and bladder emptied — part shaved. Position. — In operating extraperitoneally, the patient lies upon the sound side, near the edge of the table, with a firm cushion or support under the op- posite loin, to round out and make prominent the side of the operation and in- crease the interval between the twelfth rib and the iliac crest. The surgeon RETROPERITONEAL EXPOSURE OF THE KIDNEY. 1053 stands at the patient's back, cutting from above downward on the right side, and in the reverse, or in the same direction, on the left. The assistant stands opposite. In operating transperitoneally, the position is the same as for median abdominal section. Approach to the kidney may be by the extraperitoneal or transperitoneal route — preferably the former. Always ascertain that the opposite kidney is present before removing a kidney. An incision to expose the kidney may go, with safety, to the lower border of the twelfth rib. If the eleventh be the last rib, the pleura would be endangered if that rib were taken for the twelfth. If the thirteenth rib be present, the operation area would be contracted. Do not take for granted that the last rib is the twelfth rib — else the pleura may be wounded. Always count the ribs from above. The pleurae may reach lower where the arcuate ligaments are attached to the second lumbar vertebra. If necessary to better expose the kidney, the twelfth rib may be excised subperiosteal! v, in whole or in part. Hemorrhage in kidney operations is often great. It may be controlled: — by compression of the pedicle by the fingers, or a special forceps temporarily applied, — by gauze-pressure of the bleeding surface, — by hot douching. Su- turing of bleeding surfaces in contact also controls hemorrhage. In bisection of the healthy kidney, pressure of the pedicle is necessary. Diseased kidney bleeds less than healthy kidney substance. The right renal vein is generally much shorter than the left — a fact to be remembered in handling the pedicle of the right kidney. Gut is preferable to silk throughout in kidney surgery — as being absorb- able — and less apt to form the nuclei of calculi. INSTRUMENTS. Scalpels; bistouries; scissors, various; forceps, dissecting, toothed, and dressing; blunt dissector; probe; sound; grooved director; tenacula ; exploratory syringe and needle; needle in handle, for exploration; periosteotomes; costo- tome; pedicle forceps; special stone scoops and forceps; stone-searcher; an- eurism-needles; artery-clamp forceps; dilators; ureteral buttons; needle-holder; needles, straight and curved; sutures and ligatures, of chromic and plain gut, kangaroo tendon, and silk; ligature-carriers; long tenotome; drainage-tubes; gauze; blunt hooks; clamps, various; retractors. RETROPERITONEAL EXPOSURE OF THE KIDNEY P.V OBLIQUE LUMBAR INCISION. Description. — The most generally applicable method of exposing the kidnev, for whatever purpose indicated. The incision admits of being ex- tended upward over the twelfth or eleventh rib, exposing them for partial excision, if necessary — as well as downward toward the anterior superior iliac spine, and onward and downward just aoove and parallel with Poupart's liga- io54 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. ment, exposing, if need be, the entire length of the ureter — the parts being ex-, ttosed throughout, extraperitoneaily. Preparation — Position. — See General Surgical Considerations. Landmarks. — Twelfth rib; outer border of erector spina*; iliac crest; Poupart's ligament. Incision. — Begins in the triangle made by the lower border of the twelfth rib and the outer border of the erector spina* — at a point about 1.3 cm. (\ inch) below the twelfth rib, and just to the outer border of the erector spinae (which crosses the twelfth rib about 6.3 cm. \p.\ inches] from the median line) — passes thence obliquely downward and forward in the direction of the anterior superior Fig.767.— Incision for Exposure of Kidneys by the Lumbar Route:— A, Retroperitoneal exposure by oblique lumbar incision ; B, Continuation of this incision where additional room is required ; C, Retroperitoneal exposure by Koenig's angular lumbo-abdominal incision ; D, Incision in Edebohls's operation of nephropexy. iliac spine, generally at first for 7.5 to 10 cm. (3 to 4 inches) — and may be subse- quently extended both upward and downward as mentioned. When so con- tinued downward, it passes to within 2 to 2.5 cm. (f to 1 inch) of the anterior superior iliac spine, and thence turns downward and inward parallel with and about the same distance above Poupart's ligament (Fig. 767, A and B, and Fig. 768). Operation. — (1) Incise skin and superficial fascia, exposing the posterior layer of the lumbar fascia, the anterior part of the latissimus dorsi and the posterior part of the external oblique. Continuing the incision in the original line, the anterior portion of the latissimus dorsi will be incised transversely to its fibers. The upper part of the serratus posticus inferior will be incised transversely beneath it. The posterior border of the external oblique will be divided, and, if the incision be continued far toward the iliac crest, the knife will pass into the intermuscular cleavage line of this muscle (Fig. 769). (2) RETROPERITONEAL EXPOSURE OF THE KIDNEY. I055 The outer border of the erector spinas is exposed, but its sheath is not opened. The internal oblique is incised nearly at a right angle to its course. The pos- terior aponeurosis of the transversalis muscle (fascia lumborum) is divided also to the full length of the wound. Between the internal oblique and trans- versalis, branches of the last dorsal nerve and last intercostal artery may be encountered passing downward and forward near the twelfth rib — and branches of the first lumbar nerve and last lumbar artery near the iliac crest. The nerves are retracted wherever possible. The arteries are ligated with gut. All the parts are retracted as divided. (3) The outer border of the quadratus lumborum muscle and the anterior layer of the fascia lumborum are now en- countered. The latter is incised to the limit of the wound. The outer border of the former is retracted — or may be incised if necessary. This divided layer is also retracted. (4) The fas- cia transversalis is thus ex- posed, and is similarly divided — when the entire depth of the wound is well retracted on each side. (5) The fatty areolar capsule of the kidney is now exposed, retroperitoneal!}' — and is opened up, partly by careful incision, and partly by blunt dissection of the perirenal tis- sue — while an assistant, by pressure upon the abdominal wall, thrusts the kidney into the lumbar wound — thus exposing the surface of the organ. (6) The special object of the opera- tion is now accomplished — and the wound treated as indicated. Comment. — (1) There is more chance to separate, rather than divide, some of the mus- cle-fibers in this incision, if it become necessary to extend it, than in most of the other incisions. (2) In exploratory incisions, and in limited operations upon the kidney, it is generally only necessary to divide the skin, superficial fascia, lumbar fascia, latissimus dorsi, and serratus posticus inferior over a distance between the anterior border of the erector spinas and the posterior edges of the external and internal oblique muscles. (3) In thick loins, longer incisions are necessary. (4) Where the kidney does not extend down as far as usual, the incision may be extended well over the twelfth rib (but see Surgical Anatomy). (5) Guard against opening the pleura, which is only separated by a comparatively thin layer of fibrous tissue from the renal fatty tissue at the costo-lumbar hiatus of the diaphragm. (6) Proximity of the kidney is sometimes noticed, in approaching from behind, by the finer texture of the fatty areolar tissue near it. (7) Avoid the colon, which sometimes pushes its way into the wound. (8) If, in the course of operation, more room be needed, the incision may be extended in one of three directions; — (a) back- ward, dividing, if necessary, the anterior border of the erector spinas: — (b) up- ward and backward over the twelfth rib, which maybe partially excised: — (c) Fig. 768. — Oblique Lumbo-abdominal Incision : exposure of kidney and ureter. ioq6 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. downward and forward toward the anterior superior iliac spine, and thence parallel with and about 2.5 cm. (1 inch) above Poupart's ligament. (9) If it be desired to examine the opposite kidney during operation (which should al- wavs be done before removing a kidney, except where that ground has been preliminarily covered by vesical catheterization of the opposite ureter), Kocher resorts to the following technic; — he divides the transversalis muscle sufficiently Fig. 76Q.— Retroperitoneal Exposure of Kidney by Oblique Lumbar Incision: — A, Latissimus dorsi ; B, Serratus posticus inferior; C, Erector spinse ; D, Quadratus lumborum ; E, External oblique; F, Internal oblique; G, Transversalis aponeurosis; H, Fatty areolar tissue; I, Intercostal nerve and artery; J, Last dorsal nerve and lumbar artery; K, Kidney; L, Pelvis of kidney. far forward to expose the reflection of the peritoneum on to the colon, near the posterior axillary line — then he opens the peritoneum and passes his hand through the opening and around to the opposite kidney — the inferior surface of the liver and gall-bladder being thus palpable also. After accomplishing the examination, the opening in the peritoneum is sutured and the operation con- tinued. (10) By keeping close to the outer edge of the quadratus lumborum muscle, there is minimum danger of wounding the peritoneum. RETROPERITONEAL EXPOSURE OF THE KIDNEY BY KOEXIG'S ANGULAR LUMBO-ABDOMINAL IN'CISION. Description. — A retroperitoneal exposure of the kidney where an espe- cially large amount of room is required. Preparation— Position. — See Surgical Considerations. Landmarks. — Twelfth rib; outer border of erector spina?; iliac crest; umbilicus. Incision. — Begins about 2 cm. (f inch) below the twelfth rib, at the outer border of the erector spina? — passes almost vertically downward (having slight outward tendency) along the outor border of the erector spina?, to just above the iliac crest — thence curves forward and upward and passes in a straight line toward the umbilicus, stopping at the outer border of the rectus (Fig. 767, C). Operation. — (1) Incise, in the vertical portion of the incision, the skin, superficial fascia, posterior layer of the lumbar fascia, latissimus dorsi, serratus TRANSPERITONEAL EXPOSURE OF THE KIDNEY. 1057 posticus inferior, middle layer of lumbar fascia, quadratus lumborum, an- terior layer of lumbar fascia, and subperitoneal fatty areolar tissue. The vessels and nerves encountered in this portion of the incision are the same as those in the oblique lumbar incision. (2) The lips of this wound are retracted — the fingers are inserted and the peritoneum detached and pushed ahead in advance of the oblique part of the wound, as it is being made. (3) The ob- lique portion of the incision is now carried out, dividing the skin, superficial fascia, latissimus dorsi, external oblique, internal oblique, transversalis, trans- versalis fascia, and subperitoneal areolar tissue. All nerves encountered are preserved, by retraction, as far as it is possible. The peritoneum is carefully detached and held out of the way ahead of the incision until its end is reached. (4) The perirenal fatty areolar tissue is now opened up and the kidney ex- posed. (5) The special operation is accomplished — and the wound treated accordingly. Comment. — This operation gives abundant room, and is retroperitoneal — but is very extensive, and a weakened abdominal wall is apt to follow. RETROPERITONEAL EXPOSURE OF THE KIDNEY PA' THE LUMBAR INTRAMUSCULAR METHOD. Description. — A retroperitoneal exposure of the kidney in the intramus- cular cleavage line and without severing important nerves and vessels. Chiefly for diagnostic purposes — and such steps as can be carried out through a limited space. The principle involved is the same as that in McBurney's intramuscular operation. Preparation — Position. — See General Surgical Considerations. Landmarks. — Tip of twelfth rib; anterior superior iliac spine. Incision. — Begins just internal to the anterior superior iliac spine — and passes upward and backward, in the cleavage line of the external oblique, to the tip of the twelfth rib. Operation. — Incise skin and superficial fascia — expose external oblique and separate its fibers in their cleavage line, throughout the entire length of the wound, from the anterior superior iliac spine to the tip of the twelfth rib — retract the separated fibers forward and upward, and backward and down- ward — expose the internal oblique, running almost directly across the external oblique, and separate its fibers similarly, along as much of the line as possible, from the ninth costal cartilage toward the posterior superior iliac spine, and retract the separated fibers forward and downward, and backward and up- ward — expose the transversalis and separate its fibers similarly, and retract the separated fibers upward and downward — divide the transversalis fascia — then the subperitoneal connective tissue — open up the perirenal fatty areolar tissue — retract the walls of the wound well — and expose the kidney. TRANSPERITONEAL EXPOSURE OF THE KIDNEY BY VERTICAL INCISION* IN THE LINEA SEMILUNARIS — LANGENBUCH'S OPERATION. Description. — An anterior transperitoneal exposure, with division of the mesocolon over the kidney. Chiefly indicated in large tumors — in narrow, deformed lumbar regions — in thick lumbar regions — where much room is re- quired — and as furnishing an easv approach and examination of both kidnevs 67 1058 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. and ureters. Incision over the linea semilunaris gives a more direct route than incision in the median line. Preparation — Position. — As for median abdominal section. Landmarks. — Linea semilunaris; costal arch. Incision. — Begins just below the border of the ribs, in the linea semilunaris of the affected side, and extends vertically downward in that line for 10 or 12.5 cm. (4 or 5 inches) — the incision having its center about opposite the umbilicus. Operation. — (1) The abdominal cavity is opened in the usual way and the wound well retracted. The small intestines are held out of the way by gauze pads and special retractors. The hand is introduced and the condition of both kidneys examined. (2) The colon is displaced toward the median line Fig. 770. — Transperitoneal Exposure of Kidney, by Vertical Incision in Linea Semi- lunaris (Langenbuch's Operation): — A, Ascending colon displaced toward median line ; B, Outer layer of mesocolon incised over kidney; C, Ligature around renal vein ; D, Ligature of renal artery; E, Ligature of ureter. and the outer layer of the mesocolon is incised in a vertical direction over the site of the kidney — thus avoiding the vessels to the colon (Fig. 770). (3) The fingers of the surgeon are passed through this incision in the mesocolon down upon the kidney — the posterior surface of which is then freed and exposed, as it lies in its fatty areolar bed. (4) The special steps of the operation are then concluded — and the abdomen closed. For the details of total nephrectomy by the abdominal route, see page 1072. Comment. — (1) Where drainage is necessary in connection with the anterior transperitoneal operation, a counter-opening is made in the loin — the incision being made from without upon a sound pressing against the lumbar wall from within. (2) Where it is necessary, in the anterior operation, to fix EXPOSURE OF KIDNEY BY ABDOMINO-LUMBAR ROUTES. 1059 a diseased ureter into the lumbar skin, an incision is made by cutting from without upon a pair of forceps introduced from within, near the outer edge of the quadratus lumborum. (3) Before closing the abdomen, the incised wound in the mesocolon is sutured with gut. TRANSPERITONEAL EXPOSURE OF THE KIDNEY BY MEDIAN ABDOMINAL SECTION. Description. — Exposure of the kidney by an incision in the median line. Practically the same as exposure by vertical incision in the linea semilunaris, except for the position of the incision — the operation last described giving the most direct access to the kidney. Preparation — Position — Landmarks — Incision. — As in median ab- dominal section. Operation. — Essentially the same as in exposure by the vertical incision in the linea semilunaris. Having displaced the intestines to the opposite side, the mesocolon is divided over the kidney. The lateral layer of the mesocolon is preferably divided. If circumstances make this inconvenient, the median layer of the mesocolon is divided. Having passed through the opening in the mesocolon, the kidney is isolated and exposed — its anterior surface, lateral borders, upper and lower poles, posterior surface, and pelvis being made ac- cessible. Having accomplished the object of the operation, the incision in the mesocolon is sutured — and the abdomen closed. Comment. — Wherever the fatty areolar capsule has been opened up very extensively in exposing the proper capsule of the kidney, at the close of the operation the fatty areolar connective tissue is sutured about the kidney again — and, if necessary, anchored, by a chromic gut stitch or two, to the neighbor- ing structures. EXPOSURE OF THE KIDNEY BY THE COMBINED ABDOMINO-LUMBAR OPERATION BY ANTERIOR TRANSPERITONEAL AND POSTERIOR RETROPERITONEAL INCISIONS. Description.— Consists of one of the anterior transperitoneal operations combined with one of the posterior retroperitoneal operations. Generallv resorted to where it is wished to make a previous examination of the abdominal cavity, chiefly for diagnostic purposes connected with both kidneys and ureters — or where a large tumor is to be removed. The intra-abdominal operation is first performed. Guided by one hand within the peritoneal cavity, the kidnev can be exposed through a smaller lumbar wound, and with greater ease, and with less danger of wounding the colon and peritoneum. The great objection, however, is the double operation — and the involvement of the peritoneal cavity. Preparation. — As for both the abdominal and lumbar operations. Position. — Patient is supine during the anterior operation, and partlv upon the side during the lumbar incision. The surgeon's position changes with the steps of the operation. Landmarks. — Those of both the abdominal and lumbar operations. Incision. — The incisions usually adopted are, for the anterior operation, Langenbuch's vertical incision in the linea semilunaris — and, for the posterior operation, the oblique lumbar incision. See the descriptions of these incisions, pages 1053 and 1058. io6o OPERATIONS UPON THE AP.DOMINO-l'ELVIC REGION. Operation. — The abdominal operation is first done — the examination made — and then, guided by the left hand within the abdomen, the lumbar in- cision is made and the operation completed extraperitoneally, accomplishing the special object sought through the posterior wound, as a rule — after which, the abdomen is closed. The posterior wound is either entirely closed — or partially closed and drained, as indicated. EXPLORATORY PUNCTURE OF THE KIDNEY. Description. — Exploration of the kidney by solid needle for calculus — or by hollow needle and syringe for pus or other fluid. Two forms of puncture may be made — (a) Puncture from Without ; the puncture is here made through unbroken skin, or, in the case of a large needle, after incising the skin alone; — the needle-puncture is made on anatomical grounds, and is made below the level of the pleura (see pages 759 and 1049). (See Comment.) (b) Puncture after exposure of the Kidney — which will be here described. In the latter case the exposure is usually made through the oblique lumbar in- cision. Preparation — P o s i t i o n — L and- marks — Incision. — As for exposure of the kidney by an oblique lumbar in- cision. Operation.— Having exposed and incised the perirenal fatty tissue, the kid- ney surface (the proper capsule) is exposed over as large an area as consid- ered necessary, by a blunt dissector and the finger. The kid- ney is then steadied by the fingers of the operator's left hand — while a needle, held between the right index and thumb (remembering the dimensions of the kidney), is thrust into the viscus — always being introduced in a straight line, and thrust from its point of entrance toward the hilum — being introduced, preferably, from the convex border — next, in the sides — and, last, at the hilum. A needle may be thus introduced a dozen or more times — always being with- drawn and re-entered before being made to travel in a new direction. The operation will be concluded according to the result of the puncture. (Fig. 771.) Fig. 771.— Exploratory Incision and Puncture of Kidney and Pelvis :— A, Nephrotomy ; B, Bisection of kidney ; C, Explora- tory puncture of kidney substance with solid needle ; D, Exploratory puncture with aspiratory needle ; E, Sound passed through pelvis of kidney to explore ureter; F, Forceps holding apart lips of pyelotomy wound. NEPHROTOMY. 1061 Comment. — Transperitoneal puncture should never be made — it is both unsafe and uncertain. Extraperitoneal lumbar puncture is not so dangerous — and, when made through the unbroken skin, while not so unsafe as transperi- toneal puncture, it is quite uncertain. The most advisable form of puncture is first to expose the kidney deliberately, and then to puncture. NEPHROTOMY. Description. — Incision of the kidney substance for the removal of calculi or tumors, or for the evacuation of pus or other fluid from the kidney proper, calices or pelvis — or for nephralgia. The kidney may be exposed by any of the incisions given — the oblique lumbar incision being probably the best. Preparation — Position — Landmarks — Incision. — As for exposure of the kidney by the oblique lumbar incision. Operation. — (I) Having exposed the kidney and brought it into the field, by counter-pressure from in front, and by drawing it down from under the rib the site of the calculus or fluid is discovered by the introduction of the solid or hollow needle, after the manner described under Puncture of the Kidney. (2) Having located the object, an incision is made down upon it exactly as de- scribed under Nephrolithotomy (page 1062), stone being the most usual in- dication for Nephrotomy. (3) Following the operation for stone, the kidney wound is treated as under Nephrolithotomy. (4) Following the operation for pus or fluid, drainage is carried down into the cavity of pus or fluid — after, where it is possible, the lips of the cavity have been brought up and sutured to the deeper structures of the abdominal wound — or the cavity may be partly closed around a drainage-tube going to its bottom. (5) Where the kidney has been cut into and no cause for drainage is found, the kidney substance is brought together by alternate deep and superficial catgut sutures. (6) The fatty areolar capsule is also closed by deep buried gut sutures in all such cases. (7) The lumbar wound is sutured in part, leaving room for drainage — or entirely, as indicated. (Fig. 771.) Comment. — (1) Where hemorrhage is severe on cutting into the kidney, it may be controlled by compressing the pedicle (which should have been demonstrated in advance) between the fingers or special clamps — or by gauze packing. Hemorrhage from a healthy kidney is often enormous — while it is generally much less from a diseased one. (2) Incision along the convex border of the kidney is always preferable. It is better to remove a calculus in the pelvis of the kidney through an incision from the convex border than by an in- cision directly into the pelvis — fistula being more apt to follow incision of the pelvis. (3) Where all is favorable, complete suturing of the kidney substance should be done after the removal of a stone. (4) Splitting of the capsule alone may be done in Nephralgia. (5) It is often hard to find the pelvis in the normal kidney, even after incising from the convex border. (6) After neph- rotomy for pus, always unite the margins of the cavity to the structures in the lower part of the wound, if possible — to avoid, if possible, infection of the perirenal tissue. (7) In unhealthy or suspicious cases, drainage is estab- lished down to the kidney — or, if indicated, into not only the kidney itself, but even into the pelvis — with gauze or tube, preferably gauze packed into the pelvis and calices. Bisection of Kidney. — In cases where limited incisions into the kidney substance will not suffice, it is sometimes necessary to lay the kidney widely open — splitting it into two halves flat-wise, or " bisecting " it. An incision is 1062 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. made in the middle line of the convex border, from the upper to the lower pole — passing straight into the pelvis — thus dividing the fewest vessels and urin- iferous tubules. The narrow calices are dilated with the tip of the finger or a pair of forceps — a probe is passed thence into the pelvis — and a bougie may be passed down the ureter even into the bladder. Having accomplished the object of the exploration, and, in suitable cases, having corrected the condi- tion, the bisected kidney is sutured with alternate deep and superficial cat- gut sutures — the deep ones passing through the entire thickness of the kidney. (Fig. 772.) PYELOTOMY. Description. — Pyelotomy, or Pelviotomy, consists in the incision of the pelvis of the kidney. Generally resorted to for calculus, or for exploration. Usually done by the oblique lumbar incision. Pelvio-lithotomy, or Pyelo- lithotomy, is the same operation done especially for the removal of stone from the pelvis of the kidney. Preparation — Position — Landmarks — Incision. — As for exposure of the kidney by an oblique lumbar incision. Operation. — Having incised and freed the fatty capsule and exposed the kidney by blunt dissection, the organ is brought forward and steadied — as far out into the wound as possible. A longitudinal incision (in the course of the pelvis) is made through the posterior wall of the pelvis. Scarcely any hem- orrhage follows incision of the pelvis, as a rule — in contradistinction to the rather free hemorrhage which nearly always at first follows incision of the kid- ney parenchyma. Insert two temporary silk traction-sutures into the wound- lips of the pelvis. Into the opening thus made and held apart by the traction- sutures, a special sound, or the finger, is introduced and an examination made for the object suspected — both in the calices above, and in the ureter below. Having accomplished the object of the operation (which is often the removal of a calculus) the wound in the pelvis, in clean cases, is closed by interrupted or continuous sutures, applied like the Lembert suturing, through all the coats of the pelvis except the mucous. For fear of leakage, drainage is generally es- tablished down to the pelvis. In infected cases, free drainage is established to and even into the pelvis — in the latter case, omitting the suturing of the en- tire pelvis-wound. The lumbar wound is closed up to the exit of the drain. (Fig. 771, E.) Comment. — (1) While incision into the pelvis is followed by little or no hemorrhage, and admits of probing the ureter, it gives no access to the kidney parenchyma — and but imperfect access to the calices — and is more apt to be followed by urinary fistula. (2) After Pyelotomy, in order to avoid urinary fistula, especial care should be taken to see that the ureter is patulous — if it be not patulous, the obstacle should be removed — or an ureterostomy, or other operation, be done. (3) The calix, or the site of the lodged stone, may have to be dilated with special forceps before it can be loosened and removed. NEPHRO-LITHOTOMY. Description. — Incision of the kidney for the removal of stone. The operation consists, practically, of a Nephrotomy — and is generally done through the oblique lumbar incision. Preparation — Position — Landmarks — Incision. — As for exposure of kidney by oblique lumbar incision. NEPHRORRHAPIIY. 1063 Operation. — (1) Having located the kidney and pressed (by counter- pressure) and drawn it into the wound, divide the fatty areolar tissue and ex- pose the surface of the organ. (2) Insinuate the index-finger (of that hand corresponding with the kidney involved) beneath the fatty capsule, through the freeing incision, and feel the organ by palpating it between thumb and index, counter-pressure being maintained the while. If the stone be palpated, steps for its removal may be at once undertaken. (3) If the stone be not detected by palpation, several means of investigation are available; (a) While the kidney is steadied, a small, long, solid needle may be thrust in various directions, entered at the external border and thrust toward the hilum — being withdrawn between each thrust. This is the simplest and best instrumental exploration. (b) A special sound may be passed through an incision made in one of the lowest calices and the pelvis of the kidney thus examined, or a finger may be introduced. Chiefly indicated when a stone is impacted there and is not re- movable from the external border of the kidney, (c) An incision along the convex border of the kidney, lengthwise of the kidney, may be made — pass- ing as far into the substance of the organ as indicated, even into the calices. Note — Methods ''a" and "c" are to be preferred to opening the pelvis of the kidney, which is apt to be followed by fistula. (4) When located, the stone is cut down upon by the most direct route, by a straight incision from the cortex toward the hilum — and, when reached, the calculus is removed by the finger alone, or aided by special scoop or forceps — or may be broken and removed in pieces. (5) Having removed the calculus, and cleansed by douching or gauze- sponging, as indicated, the site occupied by the stone, the wound in the kidney, in clean cases, should be repaired by fine catgut (see Nephrorrhaphv), and temporary drainage down to the kidney established. If purulent conditions be present, the kidney wound should not be entirely sutured — and drainage to, or into, the pus cavity be instituted. Comment. — (1) Following free incision of the kidney substance, con- siderable hemorrhage is apt to occur at first, but is generally capable of speedy arrest by gauze pressure, or hot douching — or, these failing, by compression of the pedicle. (2) Incisions into the kidney substance should be made in a straight line toward the hilum (centering toward the hilum like the spokes of a wheel). (3) To aid in examining the pelvis of the kidney, turn the external border of the kidney upward and forward. (4) In manipulating near the anterior wall of the kidney, take care lest the peritoneal cavity be entered. (5) Where the kidney has been exposed by an anterior incision (transperitoneal) and drainage is necessary, a posterior counter-opening should be made by cutting from without down upon some instrument pressed against the lumbar wall from within. The peritoneum is then closed over the anterior aspect of the kidney, and the posterior wound, with drainage, is left open. These re- marks just made apply to the sometimes indicated removal by a posterior in- cision of a stone which has been discovered by an anterior operation. NEPHRORRHAPHY. Description. — Suturing of the kidney substance — here used in connection with suturing kidney wounds, either accidental or those made in the course of an operation. The kidney is exposed either by enlarging the original wound — or, if deliberately exposed, generally by the oblique lumbar incision. Every Nephropexy involves nephrorrhaphv — but not vice versa. See Nephropexy page 1064. 1064 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Operation. — Having exposed the kidney and brought it into convenient position for manipulation, the edges of the wound are brought together and sutured with catgut, car- A ried upon a fully curved needle held in a needle- holder. Interrupted su- tures are generally more satisfactory than continu- ous sutures. Where the wound is superficial, a single row of sutures, all of the same depth, suffices. Where the wound is more extensive, it is well to put in a double row — a deeper row outlying the more superficial row, — or a sin- gle row may be used, putting in each alternate suture a deep one. Ordi- nary suture may be used — either interrupted or con- tinuous — or the Halsted quilt suture may be used, especially where much loss of kidney substance has occurred. (Fig. 772.) Fig. 772.— Nephrorrhaphv and Pyelorrhaphy : — A, Small nephrotomy wound closed with superficial sutures; B, Long and deep nephrotomy wound closed with alternate super- ficial and deep sutures; C, Pyelotomy wound closed with Lembert sutures. NEPHROPEXY BY SUTURING SPLIT AND EVERTED PROPER CAPSULE OF KIDNEY TO LUMBAR WALL— EDEBOHLS'S OPERATION. Description. — The fibrous capsule of the kidney is split along the con- vexity of the organ and peeled back toward the pelvis, on both aspects, for about half-way — after which, chromic gut sutures are passed through both the detached and undetached portions of this capsule, and through the lips of the lumbar wound. When these sutures are tightened and tied, they approximate the partly decapsulated kidney to the raw portions of the lumbar wound. Position. — Patient lies prone upon Edebohls's kidney air-cushion — which, pressing against the abdomen, aids in bringing the kidney prominently into the wound. Surgeon stands on left side in operating upon left kidney, cutting from above downward — and on right side in operating upon right kidney, cutting from below upward (or stands on opposite side of body, cutting from above downward). Assistant stands upon the opposite side of the body. Landmarks. — Twelfth rib; iliac crest; outer border of erector spina? muscle; anatomical relations of kidnev. Incision. — Straight incision along the external border of the erector spina? muscle, passing from the inferior border of the twelfth rib to the iliac crest. Where the space between rib and ilium is very narrow, this incision may begin at the same point but run more obliquely and reach the ilium further to the Duter side of the erector spinas. (Fig. 767, D.) Operation. — (1) Incise skin and fascia. Recognize the latissimus dorsi and separate its fibers in their cleavage line — beginning the separation over the outer aspect of the erector spina? and continuing it upward and outward. The sheath of the erector spina? is not opened. (2) Divide the transversalis fascia, NEPHROPEXY 106s exposing the perirenal fatty areolar tissue. If the ilio-hypogastric nerve can- not be retracted to one side, it is cut and subsequently sutured with gut, after the kidney has been sutured into place. (3) The sheath of the quadratus lumborum is incised from the twelfth rib to the iliac crest, along the anterior surface of its lateral border — exposing, by the retraction of its incised edges, considerable raw muscle. (4) The kidney is now freed by blunt dissection, aided by clips of curved, blunt scissors, if necessary — and is delivered upon the back, surrounded by its fatty capsule — which delivery is aided by rolling the patient up and clown upon the air-pillow. The size of the opening in the abdominal parietes may be increased, if need be. (5) Dissect away the entire fatty capsule from the proper fibrous capsule of the kidney. (6) Any explora- tion of the kidney by palpation, x-raying, or instrumental means may now be done — and any measure carried out that may be indicated. (7) At this stage, tiP Fig. 773. — Nephropexy — Kdebohls's Operation: — I, Placing fixation or suspension sutures — the kidney is shown delivered through lumbar wound — the proper capsule split and stripped back half- way — and the four fixation sutures passed through reflected and attached portions of proper capsule, and not penetrating kidney substance. (Modified from Edebohls.j if the removal of the appendix vermiformis be indicated — which the author of the operation considers to be so in a certain percentage of cases — the perito- neum is opened external to the kidney, and to the outer side of the ascending colon — part of the ascending colon is drawn out and one of its longitudinal bands is followed down to the caecum and the appendix thus located at the termination of the muscular band — after which the appendix is delivered into the wound (the kidney having been temporarily replaced) — and is either in- verted entire into the caecum, after ligating the meso-appendix, or excised and the stump treated according to the operator's individual ideas. (8) Following the replacing of the intestines, the author of the operation — who considers that there is an association, in a certain percentage of cases, between nephroptosis and disease of the bile-passages — explores, by palpation, the gall-bladder, 1066 OPERATIONS UPON THE ABOOMINO-PELVIC REGION. cystic and common ducts, inferior aspect of liver, and the pyloric end of the stomach, through the lumbar wound. (9) The peritoneal wound is then closed and the kidney again delivered through the lumbar wound, in prepara- tion for anchorage. Where the peritoneum has not been opened, the kidney remains delivered, as described under (4), from the time of its first exposure. (10) Incise the proper capsule of the kidney at the center of its convex border, carefully avoiding entering the kidney substance. Pass a grooved director be- tween the fibrous capsule and kidney proper, first toward the upper pole, and then toward the lower pole, to and half-way around both poles. The fibrous capsule is then separated from the kidney by blunt dissection, from the line of incision, peeling it off (as the skin from an orange) on both sides toward the pelvis — until practically one-half of the kidney is denuded — the detached por- Fig 774.— Nkphropexy — Edehohls's Operation : — II, Anchoring kidney and closing lumbarwound —the skin wound is shown retracted, and the kidney has been returned within abdominal wound. A, A, Two upper buried fixation sutures, untied. The two lower fixation sutures are tied. B, Untied buried suture uniting lips of lumbarwound in cleavage line of latissimus dorsi. Similar sutures below are tied. (Modified from Edebohls.) tion remaining continuous with the undetached portion, and turned back upon the latter as the lapel of a coat. If the proper capsule appear excessive, a por- tion may be excised (Fig. 773). (") Four forty-day chromic gut fixation or suspension sutures are now introduced through both that portion of the proper capsule which has been detached and reflected, and through the still adherent portion — the passage of the sutures occurring near the line of reflection and being accomplished as shown in Fig. 773, — two being placed upon the anterior and two upon the posterior aspect of the kidney, at the center of the upper and lower halves on each side. A straight Hagedorn needle is used— the suture is carried from within outward entirely through the reflected proper capsule, near the line of reflection— travels transversely to the axis of the kidney and enters the attached portion of the proper capsule (directly opposite its point of emer- NEPHROPEXY 1067 gence from the detached portion) and pierces it from without inward, just be- yond the line of reflection — thence the Hagedorn needle travels, flatwise, en- tirely between the proper capsule and the kidney substance, parallel with and just below the line of reflection, for 2 or 3 cm. (f to i^ inches) — thence emerges through the attached capsule from within outward — and, traveling transversely to the axis of the kidney, passes through the reflected proper capsule from without inward, parallel with the companion limb of the suture. (12) Having placed all four sutures, the kidney, with the eight suture ends hang- ing free, is returned within the bod}-. Each suture is now passed through the entire lumbar wall, from within outward — either by threading a needle upon each and penetrating the wall from within outward, or by passing a Reverdin needle through the abdominal parietes from without and drawing the sutures through from with- in. The four inner sutures will thus pierce the lumbar wall on the inner side of the incision, and at a dis- tance from each other equivalent to the distances apart at which they pene- trate the proper capsule — and will pass through the retracted sheath of the quadratus lumborum near its edge, through the quad- ratus muscle, and through the erector spinae. The four outer sutures will pierce the lumbar wall on the outer side of the inci- sion, at the same distance from each other as those of the opposite side, and each at a distance from its companion suture of the opposite side equivalent to the antero-posterior thick- ness of the kidney — and will pass through the transversalis fascia and the latissimus dorsi muscle. The highest sutures pass through immediately below the last 'rib. These eight sutures are, at first, left untied. (13) The incision in the lumbar wall is now closed, in the cleavage line of the latissimus dorsi, by from four to six deeply buried interrupted sutures of forty-day chromic gut, in such a manner as to turn the raw surface of the quadratus lumborum muscle toward the kidney. This is accomplished by suturing the latissimus dorsi and lumbar fascia, composing the external margin of the wound — to the latissimus dorsi, the sheath of the erector spinae, and the external margin of the incised sheath of the quadratus lumborum, composing the inner margin of the wound (Fig. 774). (14) The eight free suspension or fixation sutures are now drawn taut, thus snugly approximating the decapsulated convex surface of the kidney into contact with the raw substance of the quadratus lumborum, from rib to ilium Fig. 775. — Nephropexy — Edebohls's Operation: — III, Cross-section of region of operation. A, Psoas magnus ; B, Erector spinae ; C, Quadratus lumborum ; D, Latissimus dorsi ; E, Rectus abdominis; F, External oblique; G, Internal ob- lique; H, Transversalis; I, Lumbar incision exposing kid- ney ; J, The decapsulated convexity of kidney is shown ap- proximated to raw substance of quadratus lumborum by the fixation-sutures seen passing through both the detached and adherent portions of proper kidney capsule. (Modified from Edebohls.) io68 OPERATIONS UPON THE ADDOMINO-PELVIC REGION. — and are then tied (Fig. 775). (15) The skin and fascia are then closed in the line of the original incision, with a subcuticular suture — and a broad lum- bar dressing applied. NEPHROPEXY BY SUTURING SPLIT PROPER CAPSULE AND PARENCHYMA OF KIDNEY TO LUMBAR WALL, BY OBLIQUE LUMBAR INCISION — TUFFIER'S OPERATION. Description. — Anchoring of an abnormally movable kidney into its own or another adjacent site — by suturing of the parenchyma and partially stripped fibrous capsule to the lumbar wall or lower ribs. The kidney may be exposed through any of the posterior incisions recently described — but is generally ex- posed through the oblique lumbar incision. Preparation — Position — Landmarks — Incision. — As for exposure of the kidney by an oblique lumbar incision. Operation. — (1) Having exposed the kidney and brought it well into the wound, partly by pressure from the abdomen, and partly by drawing the organ downward and backward from under the rib (or simply backward, where already much dis- placed and loosened from its natural position), the fatty areolar capsule is divided and partly turned backward, exposing the kidney and its proper fibrous capsule. (2) Trim away any excess of fatty capsule. Incise the proper fi- brous capsule of the kidney along its mid-pos- terior aspect, in the long axis of the kidney and for its entire length — adding a cross-cut, at right angles, at either end of the vertical inci- sion, of about 2.5 cm. (1 inch) in length, half of its length being on either side of the vertical cut. Peel back the fibrous capsule thus liberated for about 1.3 cm. (J inch) on either side of the median incision. Pass from four to six chromic gut or kangaroo tendon sutures, in a curved needle, held in a holder, so as to include, on one side, the deeper structures in one lip of the lum- bar wound (but not the entire thickness of the lumbar wound), the transversalis fascia, fatty capsule, reflected portion of fibrous capsule, part of unreflected portion of fibrous capsule, and about 1.3 cm. (£ inch) of kidney substance, — emerging from the kidney substance on the opposite side, it takes up, in reverse order, part of the unreflected portion of the kidney capsule, reflected portion of the proper capsule, fatty capsule, transversalis fascia and deeper structures in the opposite lip of the lumbar wound (Fig. 776). These are tied as buried sutures, simultaneously drawing the kidney up to the lumbar fascia, posterior abdominal wall, and borders of the wound, and, at the same time, approximating the deeper parts of the lips of the wound. Care is taken to draw the kidney up to and under the lips of the wound and in contact with as much raw surface as possible — but not into and between the wound. It is also essential to see that the reflected most, to of the proper capsule remains spread out with its raw surface upper portion add to the extent of raw surface for adhesion. (3) The upper depth and Fig. 776.— Nephropexy by Su- ture of Split Capsule and Kid- ney Parenchyma : — Sutures are seen penetrating kidney substance and split capsule, which latter has been turned back on either side. The outer limbs of the sutures are ready to be carried through site of abdominal wall, or other site, to which kidney will be approximated by tightening the sutures. Tuf- fier's method. NEPHROPEXY. 1069 skin margins of the wound are then closed with interrupted sutures of silk or chromic gut. Comment. — (1) This may be regarded as one of the best methods of Nephropexy — granulations of the raw surface of the kidney and capsule form stronger adhesions than when the kidney is not partly stripped. And stronger union is formed than when the stripped capsule alone is sutured into the wound (instead of the stripped capsule and kidney substance). (2) The split fibrous capsule is sometimes also sutured to the periosteum of the twelfth rib. (3) In some cases gauze packing is used down to the kidney in the center of the wound, to strengthen adhesion by granulation. (4) Avoid including nerves in suturing of the kidney to the lumbar wall. (5) Deep drainage may be temporarily used — but is generally not indicated. NEPHROPEXY BY SIMPLE SUTURING. Description. — Here neither the fatty nor the fibrous capsule of the kidney is split — one or both of these structures being sutured to some neighboring structure. See, further, "Description" of the last operation. The kidney may be exposed by any of the incisions given — the oblique lumbar incision being preferable Preparation — Position — Landmarks — Incision. — As for exposure of kidney by oblique lumbar incision. Fig. 777— Nephropexy by Simple Suturing : — A, Sutures passing through lower portion of lips of wound, perirenal fatty areolar tissue, and kidney substance, ready to bind kidney to and into lower plane of wound ; B, Sutures passing through skin and upper portion of lips of wound. The structures are the same as those enumerated in Fig. 769. Operation. — Having exposed the kidney as in the last operation, the dis- placed organ may be treated in one of several ways; (a) By Suturing of the Unopened Fatty Capsule; — Excess of fatty areolar capsule is trimmed away, and the remaining shortened capsule is stitched into the lower plane of the lumbar wound by four to six interrupted chromic gut or kangaroo tendon sutures — the upper layers of the lumbar wound being closed as in the last oper- ation (Fig. 777). (b) By Suturing of the Parenchyma, together with the un- 1070 OPERATIONS UPON THE ABDOMINO-PELV1C REGION. stripped Fatty and Fibrous Capsules; — Having shortened the excess of fatty capsule, if necessary (by excising a portion), three or four kangaroo tendon or chromic gut sutures are passed, with fully curved needle, dipping about 1.3 cm. (^ inch) into the kidney substance, and taking up about 2 cm. (f inch) in width of the kidney, into the posterior aspect of the kidney, in a horizontal direction — the sutures passing through the muscles of the wound, transversalis fascia, fatty capsule, fibrous capsule, and the above amount of kidney. These are buried sutures. The upper layers of the wound are separately sutured by in- terrupted sutures. The fatty capsule is thus sutured between the lips of the wound. Comment. — (1) The above operation is inferior to splitting the fibrous capsule. (2) Sometimes the fatty and fibrous capsules, without including the kidney, are sutured to the lumbar wound. (3) Sometimes the fibrous capsule is exposed and sutured to the periosteum of the twelfth rib. (4) The upper kidney sutures may be carried around the twelfth rib and tied (Fig. 778). Fig. 778. — Nephropexy: — The two uppermost kidney sutures are carried around the twelfth rib, the remaining kidney sutures being carried through the lumbar aponeuroses and muscles. The overlying muscles and aponeuroses are then drawn together by sutures passing through their substance. (Modified from Duval.) TOTAL NEPHRECTOMY BY OBLIQUE LUMBAR INCISION. Description.— Excision of one entire kidney. Generally indicated in tumor, extensive suppuration, tuberculosis, fistula. No kidney should be re- moved until the presence of an opposite, and, if possible, healthy one is as- certained (by vesical catheterization of its ureter — or by actual palpation by hand in the abdominal or lumbar wound). The kidney may be removed by several routes — lumbar nephrectomy — abdominal nephrectomy. The lumbar route is to be preferred — and of the lumbar incisions, the oblique lumbar is the best, being especially capable of extension in either direction to give the neces- sary room. NEPHROPEXY. IO71 Preparation — Position — Landmarks — Incision. — As for exposure of kidney by oblique lumbar incision. Operation. — (1) The perirenal adipose tissue having been exposed and separated from the kidney by blunt dissection — the kidney being enucleated, as it were, by the finger — the kidney itself is brought well into the wound, partly by abdominal pressure from in front, and partly by traction, while the lips of the wound are drawn well apart (Fig. 779). (2) The pedicle is care- fully isolated and freed by blunt dissection—and the kidney is then delivered outside of the wound if possible — especially avoiding traction and twisting of the structures of the pedicle during delivery. (3) The pedicle should be tied with strong silk carried upon a blunt aneurism-needle. Where possible, the Fig. 779.— Total Nephrectomy by Oblique Lumbar Incision: — A, Kidney brought out of wound in grasp of vulsellum ; B, Ligature of renal artery ; C, Ligature of renal vein ; D, Ligature of ureter; E, Quadratus lumborum muscle and last dorsal nerve and lumbar artery; F, Erector spinae muscle ; C, Serratus posticus inferior; I, External oblique ; J, Internal oblique muscle, and intercostal nerve and artery ; K, Transversalis aponeurosis. artery and vein should be tied separately, and, preferably, prior to their division into branches — the artery being tied first. If not easily differentiated and isolated, the artery and vein may be tied en masse — or in several bundles, re- gardless of whether arteries or veins. If possible, all the structures should be doubly ligated — and the structures forming the pedicle should be relaxed dur- ing the placing of ligatures. The ureter should always be tied separatelv. The pedicle is then severed between the double ligatures, or between kidnev and single ligatures. (4) If healthy, the proximal end of the ureter should be cauterized and dropped back into the wound. If unhealthy, it should be at- tached into the wound and drained. (5) In healthy, clean cases the entire 1072 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. pedicle is dropped back into the abdomen and the wound closed. In sus- picious cases, the pedicle is anchored into the wound and drained. Comment. — (1) Guard the vena cava, which has been wounded in the operation upon the right side. (2) Sometimes the fatty capsule as well as the kidney must be removed — necessitating the removal of the entire mass from the surrounding tissues. (3) The peritoneal cavity is often opened. If the rent be small, it is closed with ordinary continuous or purse-string suture of gut. If too large to suture, it is packed with gauze. (4) The pleural cavity may be opened in working near the twelfth rib — and should be immediately sutured with continuous or purse-string gut suture. (5) The colon may be wounded. Treat as wounds of intestine elsewhere. (6) Nephrectomy by morcellement (piecemeal) is sometimes done. (7) If the pedicle have not been doubly ligated, it should be clamped near the kidney before division. PARTIAL NEPHRECTOMY BY OBLIQUE LUMBAR INCISION. Description. — Removal of part of a kidney. May be done in removal of growths — or in badly lacerated wounds. Generally done by the lumbar opera- tion — unless occurring in the course of some other operation. Operation. — (a) In the deliberate removal of a portion of the kidney, a wedge-shaped piece should be taken out, if possible — so that the sides of the kidney wound, left after the removal of the wedge, could be brought into fairly accurate apposition and sutured by alternate deep and superficial sutures of gut. (b) In extensive lacerations, leaving irregularities of surface, the raw surfaces are to be brought into contact and sutured in the best manner pos- sible — by deep and superficial gut sutures. The wound of the abdominal wall is treated upon general principles. SUBCAPSULAR NEPHRECTOMY. Description. — Where a dense, perirenal capsular mass surrounds the kidney and is firmly adherent to the peritoneum, colon, vena cava, diaphragm, and other structures — so that damage to these structures would likely result in attempting to separate such a capsule, this fatty areolar capsule is incised and the incision carried also through the proper fibrous capsule of the kidney — which is then peeled back to, and, if possible, into the pedicle — which is then ligated or clamped, and the kidney removed. The cavity of the capsule is then curetted (where indicated) and packed — the abdominal-wall wound being closed up to the packing. The best approach in such cases is by the oblique lumbar incision. TOTAL NEPHRECTOMY BY ANTERIOR TRANSPERITONEAL OPERATION. Description. — Removal of an entire kidney through an anterior trans- peritoneal route — the incision being made in either the median or linea semi- lunaris region, the latter giving the more direct approach. Preparation — Position — Landmarks — Incision. — As for exposure of kidney by vertical incision in linea semilunaris. SURGICAL ANATOMY OF THE URETERS. 1073 Operation. — (i) Having opened the abdomen as in the operation above indicated, both kidneys and ureters are examined by the hand introduced into the cavity. (2) Displace the colon toward the median line and incise the outer layer of the mesocolon in a vertical direction. This division of the pos- terior peritoneum will be upon either the lateral or median aspect of the meso- colon, as determined by its position on the anterior surface of the kidney. The vessels of the colon are less interfered with if the peritoneum be divided upon the outer side of the mesocolon. (3) The fingers are now passed through this incision down upon the kidney — the perirenal fat is incised and the kidney enucleated by blunt dissection. The pedicle is first to be cleared — by stripping off the peritoneum toward the aorta. The vessels are then ligated with silk passed by means of an aneurism-needle — tying, preferably, the artery first, then the veins. If room be sufficient, double ligatures should be used, pro- viding for division between them, — if not, the pedicle may be clamped near the kidney (instead of the second ligature). (4) The pedicle is now divided be- tween the two sets of ligatures — or between the clamp and ligatures. The ureter should be separately doubly ligatured and similarly divided. The liga- tured stump, with or without cauterization, as indicated, is returned to the abdomen. (5) The kidney is then further enucleated from its perirenal fatty areolar tissue and removed. All bleeding vessels are gut-ligatured. (6) If drainage be indicated, it is established through the lumbar region by a counter- opening made upon some instrument thrust backward from within and cut upon from without. (7) The incised mesocolon is sutured with gut. (8) The abdominal wound is closed in the general manner. Comment. — (I) The kidney should be systematically exposed, aftei in- cising the fatty capsule — first the anterior surface, then the lateral borders, the poles, and the posterior surface. (2) Where anterior drainage must be es- tablished, the edges of the incision in the posterior peritoneum are sutured to the edges of the incision in the parietal peritoneum, thus shutting off the gen- eral cavity. Posterior drainage, however, is always preferable. (3) Sus- picious ureters must be brought out into a posterior lumbar wound made as a counter-opening. (4) Avoid injury to the nutrient arteries of the inner layer of the mesocolon. (5) 'The operation is practically the same whether done through a vertical incision in the linea semilunaris or through a median incision. XIII. THE URETERS. SURGICAL ANATOMY. Description. — Fibro-elastic tubes of about 3 to 4 mm. (| to nearlv j^ inch) in diameter — flattened from before backward — with walls of about 1 mm. (o-g- inch) in thickness. They consist of outer, fibrous — middle, muscular — and inner, mucous coats. They have an average length, in the male, of about 30.5 cm. (12 inches) — extremes being from 25.5 to 40.5 cm. (10 to 16 inches). They are about 7.5 cm. (3 inches) apart at their beginning — about 5 cm. (2 inches) apart near the sacro-iliac joint — about 3.2 cm. (1 j inches) apart at en- trance to bladder — and about 2 to 2.5 cm. (f to 1 inch) apart at their bladder- mouths. The ureters begin in the funnel-shaped pelvis of the kidney, opposite the spinous process of the first lumbar vertebra — and run downward through a sort of lymph-space between the lahiina; of the subperitoneal connective tis- sue, downward and inward through the lumbar and pelvic regions — ending 68 1074 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. in the base of the bladder. The genitocrural nerve is in close relation with the ureter. There are three sites at which the ureter is narrower than else- where, — between 4 and 5 cm. (i£ and 2 inches) from the pelvis of the kidney — crossing of iliac artery — ai d at junction of pelvic and vesical portions. Course and Relations. — (1) Abdominal portion : Male and Female : — (a) Right Ureter,— Runs downward and slightly inward, from pelvis of kidney to promontory of sacrum, where it crosses either common or external iliac artery. Rests (posteriorly) upon psoas muscle and fascia, genitocrural nerve, common or external iliac artery. Covered (anteriorly) by peritoneum, sper- matic and colic vessels, and ileum. Internally lies inferior vena cava, near ure- ter, (b) Left Ureter, — Runs downward and slightly inward, from pelvis of kidney to promontory of sacrum, where it crosses either common or external iliac artery (same course as right ureter). Rests (posteriorly) upon psoas muscle and fascia, genitocrural nerve, common or external iliac artery (same posterior relations as right). Covered (anteriorly) by peritoneum, spermatic and colic vessels, and sigmoid colon. Internally lies abdominal aorta, being 2.5 cm. (1 inch) from ureter above, and 1.3 cm. (|inch) below, near bifurcation. (2) Pelvic portion : Both sexes : Both sides ; — Runs downward in front of sacro-iliac joint — passes upon obturator internus and its fascia, lying irtferiorly and internally to psoas — enters posterior false ligament of bladder (rectovesical fold, in male — uterovesical fold, in female) below the obliterated hypogastric artery — hence its course differs in the two sexes: — (a) Male: Both sides; — It is here crossed above and to inner side by vas deferens, which intervenes be- tween it and bladder — and, just before entering bladder, it passes beneath the free extremity of the vesicula? seminales. The two ureters are about 5 cm. (2 inches) apart at base of bladder, and about 4 cm. (ij inches) posterior to the prostate gland, (b) Female : Both sides ; — It passes down parallel with the cervix uteri and upper part of vagina — lying about 5 mm. (i inch) external to cervix opposite os internum — running posteriorly to uterine artery, through the uterine venous plexus, and below the broad ligament — crossing the vagina opposite its upper third, to the vesicovaginal interspace, and entering the blad- der opposite the center of the vagina, (c) Intravesical portion : Both sexes : Both sides; — Entering the bladder 4 to 5 cm. (1^ to 2 inches) apart, the ureters pass obliquely downward and inward through its wall, emerging upon the mucous membrane about 2 cm. (f inch) apart, and about the same distance posterior to the meatus urinarius internus. Arteries. — From renal, spermatic, internal iliac, and inferior vesical. Veins. — End in corresponding trunks. Lymphatics. — Empty into pelvic and lumbar glands and into receptacu- lum chyli. Nerves. — From spermatic, renal, and hypogastric plexuses. SURFACE FORM AND LANDMARKS. As the ureters are about 7.5 cm. (3 inches) apart at their commencement at the pelves of the kidneys, opposite the first lumbar spinous process, the be- ginning of each ureter will lie about 4 cm. (i^ inches) external to the line of the spinous processes, on a level with the spinous process of the first lumbar verte- bra. And they lie about 5 cm. (2 inches) apart near the sacro-iliac articulation — or about 2.5 cm. (1 inch) from the median line. Anteriorly, the line of the ureters, from the kidneys to the brim of the pelvis, GENERAL SURGICAL CONSIDERATIONS. 1075 may be gotten, approximately, by drawing a line vertically upward from the junction of the inner and middle thirds of Poupart's ligament. And the posi- tion of the crossing of the ureters over the brim of the pelvis may be approxi- mately represented by the intersection of a vertical line extending upward from the spine of the pubis, with a horizontal line between the anterior superior iliac spines. GENERAL SURGICAL CONSIDERATIONS. (1) The ureter is so intimately adherent to the peritoneum that when the peritoneum is stript up, the ureter is almost always reflected along with that membrane and adherent to it. (2) In all suturing about the ureter, an attempt should be made not to include the mucous membrane — though, prac- tically, this may often be done unintentionally. The fibrous and part of the muscular coats should be taken up by the stitch. (3) Fine silk is the suture material generally used — it being difficult to manipulate gut, or to get it fine enough. (4) There is a tendency to narrowing at the site of suture, especially after transverse division. (5) Extra-pelvic portions of the ureter should be approached retroperitoneally — except where the cause for the operation upon the ureter arises, or is discovered, during an intra-abdominal operation. (6) Intra-pelvic portion of the ureter is accessible by incision through the abdom- inal wall, bladder, rectum, vagina, perineum, or by sacral resection. (7) Longitudinal wounds of the ureter heal better than transverse ones. (8) Drainage is indicated in all cases where infection is present or suspected, or where the technic is uncertain. (9) In retroperitoneal operations, suture is not absolutely necessary, provided drainage be established down to the wound. (10) Whenever the ureter is opened intraperitoneally, the peritoneum or omentum should be sutured over the wound, so as to make it extraperitoneal. (11) Where the ureter has been divided and must be transplanted, implanta- tion into the bladder is the most desirable. (12) Where the ureter has been completely divided transversely, it should be repaired by uretero-ureterostomy, if possible. (13) Where the division is near the kidney, and uretero-ureteros- tomy cannot be performed, it should be implanted into the pelvis of the kidney. If the division be low down, it should be implanted into the bladder. (14) If such an extent of ureter be lost that uretero-ureterostomy cannot be done — or the end cannot be implanted into the pelvis of the kidney or into the bladder, implantation into the bowel or skin should be done. (15) Longitudinal wounds of the ureter generally heal without suture, if retroperitoneal drainage be provided. (16) Where it is possible, any operation should be protected by peritoneum — in one of two ways: — (a) Lift the ureter up out of its bed, at the site of operation, into the peritoneal cavity — and draw the peritoneum around the ureter from both sides, so stitching the serous membrane as to form a tube through which the ureter runs, practically excluding it from the general peri- toneal cavity. The suturing should, however, be lightly and carefully done, forming a loose tube, so as to avoid subsequent contraction. This is probably the better method, (b) The site of operation upon the ureter may be sur- rounded by a detached piece of omentum lightly sutured to the ureter. (17) The ureter has been separated for as much as 8.3 cm. (3J inches) from its at- tachments without gangrene — owing to the long artery which accompanies it and is intimately connected with it. (18) The ureter may be lengthened 2.5 cm. (1 inch) or more, by steady, gentle traction. (19) When a gap in ureter at the lower end cannot be bridged by stretching, a vesical diverticulum can 1076 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. sometimes be turned up to meet the end of the ureter. (20) Ureteroureteros- tomy is generally practicable except in the lower 2.5 cm. (1 inch) in the male, and the lower 5 cm. (2 inches) in the female. (21) In severed ureter, the best course is uretero-ureterostomy by, probably, Van Hook's method — and the next best, uretero-cystostomy (v. i. ). (22) Normal urine is not injurious to the peritoneal cavity, but it is well not to let it come in contact if it can be helped. INSTRUMENTS. See instruments used in operating upon the Kidneys. Also the following special instruments: — Very fine needles, curved, straight, and plain cambric needles; fine silk; fine catgut; fine forceps; fine scissors; small needle-holders; ureteral sound; ureteral catheters; cystoscope; electric illumination; urine evacuator; instruments for segregation of urines. EXPOSURE OF THE URETER IN GENERAL. Description. — The exposure of the ureter may be made deliberately — or may be done in the course of some other operation. Most of the operations for exposure of the kidney generally also admit of exposure of more or less of the ureter. The ureter may be exposed extra- or intra-peritoneally. Abdominal portion of the ureter is best exposed by the oblique lumbar incision used in exposing the kidney, extending from the twelfth rib above Poupart's ligament to about its center. This incision will enable the upper three-fourths of the ureter to be freely exposed, and will allow of access to the entire ureter, from kidney to bladder — though, of course, not so free access to the lower one-fourth (Fig. 780). It is a possible thing to thus expose the entire ureter extraperitoneally. This exposure should be the one of preference for the upper three-fourths of the ureter (and may be resorted to for even the entire ureter) — except when the ureter is exposed in the course of abdominal section. Pelvic portion of the ureter is readily accessible through the lower median abdominal incision — followed by retraction of the intestines (especially aided by the Trendelenburg position) — and division of the peritoneum over the course of the ureter. The intrapelvic portion may also be exposed by incision through the bladder, vagina, rectum, male perineum, or by sacral resection. Intravesical portion of the ureter may be exposed through a cystotomy wound (incision of the bladder) — generally by the suprapubic route. EXTRA-PERITONEAL EXPOSURE OF THE KIDNEY AND THE ENTIRE URETER BY OBLIQUE LUMBO-ILIAC INCISION. Description. — This incision will allow the kidney and the upper three- fourths of the ureter to be freely exposed — and will give access to the entire ureter, though, of course, not such free access to the lower one-fourth — the exposure being retro-peritoneal throughout. EXTRA-PERITONEAL EXPOSURE OF THE KIDNEY AND URETER. 1077 Preparation. — As for exposure of the kidney by an oblique lumbar incision. Position. — The patient lies upon the opposite side during the work in the upper part of the wound — and upon the back during the work in its lower portion. Landmarks. — Twelfth rib; outer border of erector spinae muscle; iliac crest; anterior superior iliac spine; Poupart's ligament. Incision. — Begins just below the twelfth rib, at the angle of junction of the lower border of the twelfth rib and the outer border of the erector spinas muscle — and passes thence obliquely downward toward, and to within 2.5 cm. (1 inch) of, the anterior superior iliac spine — thence downward and parallel with, and about 2 cm. (f inch) above, Poupart's ligament, to just below its center (Fig. 780). Fig. 780. — Incision for Exposing Kidney and Ureter Extraperitoneally. Operation. — The first part of the operation and the exposure of the kidney are conducted as in the more limited procedure of exposing the kidney alone by an oblique lumbar incision (page 1053) . In the lower aspect of the wound the ureter is in relation with the peritoneum and ascending colon on the right side, and the peritoneum and descending colon on the left. The colon, in either case, is retracted toward the median line, together with the peritoneum, exposing the psoas muscle and the spermatic and colonic vessels. The ureter has a tendency to cling to the peritoneum as it is displaced. A large retractor draws the intestines toward the median line. The ureter is isolated at the 1078 OFERATIOiNS UPON THE ABDOMINO-PELVIC REGION. lower pole of the kidney — and is carefully traced down to the iliac vessels — separating the peritoneum by blunt dissection and retracting it inward from the course of the ureter — the superficial incision having been deepened through skin, fascia, external, internal, and transversalis muscles and aponeuroses down to the subserous areolar tissue — in which plane the separation of the ureter is accomplished. In exposing the pelvic portion of the ureter the patient is placed in the Trendelenburg position. The epigastric vessels are doubly ligated and tied. The operator, with the pulp of his thumbs, continues to free and roll the peritoneum off of the pelvic structures, still working in the plane of the transversalis fascia and progressively descending toward the iliac fossa — pushing the peritoneum toward the umbilicus, in the upper and lower part of the pelvic wound, the parts being further retracted by a large retractor. The spermatic cord and the round ligament are encountered and displaced inward. The common iliac at its bifurcation into external and internal branches is exposed. Thence the relations of the ureter will depend upon the sex being operated upon. In the male, it is crossed above and to the inner side by the vas deferens, which intervenes between it and the bladder — and, just before entering the bladder, it passes beneath the free extremity of the vesiculae seminales. In the female it passes down parallel with the cervix uteri and upper part of the vagina — lying about 5 mm. (I inch) external to the cervix, opposite the os internum — running posteriorly to the uterine artery, through the uterine venous plexus, and below the broad ligament — crossing the vagina opposite its upper third to the vesico-vaginal interspace, and entering the bladder opposite the center of the vagina. Entering the bladder, in both sexes, the ureter passes obliquely downward and inward through its wall, emerging upon the mucous membrane about 2 cm. (| inch) posterior to the meatus urinarius internus. URETEROTOMY. Description. — Incision of the ureter. Generally done for the removal of calculi — in which case the operation may be called uretero-lithotomy. Calculi may be lodged at either the upper or lower end of the ureter, or in the middle — usually at one of the two ends. Ureterotomy may be extraperitoneal or trans- peritoneal (intraperitoneal) — when the ureter is approached, respectively, behind the peritoneum, or through the abdominal cavity. Extraperitoneal ureterotomy is always preferable. Where the site of the ureterotomy is only determined in the course of an operation performed through one of the regular incisions, the ureterotomy will be extraperitoneal or intraperitoneal, according to circumstances. Even when the ureterotomy is done intraperitoneally, how- ever, the site of the ureterotomy, in concluding the operation, should be as thoroughly shut off (walled off) by suturing of peritoneum around the site, as possible. Extraperitoneal ureterotomy is usually done through the oblique lumbar incision, extended as far forward and downward as necessary. Trans- peritoneal ureterotomy is generally done through a median abdominal incision, or one in the linea semilunaris. Preparation — Position — Landmarks — Incision. — As for exposure of the kidney by either an oblique lumbar or an anterior abdominal incision. Operation. — (a) In the Extraperitoneal Operation — the ureter — which has generally been found by tracing downward from the pelvis of the kidney — is exposed and divided longitudinally to the necessary extent — over the calculus. URETERORRHAPHY. 1079 if the operation be done for that purpose — the ureter having been steadied and carefully incised with a small, sharp knife, aided by fine forceps — after which the calculus is removed by scoop or forceps. The wound in the ureter, in favorable cases, should be closed with fine silk sutures, passing through the fibrous and muscular coats. Temporary drainage should be employed, in case of leakage — the lumbar wound being closed elsewhere, (b) In the Transperitoneal Operation — the ureter is exposed — the peritoneum divided longitudinally over it — the ureter incised in its long axis — and the object of the operation accomplished (usually the removal of a stone). The incised ureter is generally sutured, as in the extraperitoneal operation — and the peritoneum is then sutured about the wound in the ureter so as to render it as extraperito- neal as possible. Prior to suturing the peritoneum over the ureteral wound, a posterior counter-opening is made, and drainage established through this — the abdominal cavity being then closed. Comment. — Calculi lodged at the lower end of the ureter may sometimes be removed through the bladder, rectum, or vagina, with or without dilating the mouth of the ureter. URETERORRHAPHY. Description. — Suturing of the ureter. Generally done for repair of wounds, or following the incision after ureterotomy for calculi. Many of the wounds are accidentally made by the surgeon in the course of other operations. Varieties of Wounds. — Longitudinal — Oblique, incomplete — Oblique, complete — Transverse, incomplete — Transverse, complete. Preparation — Position — Landmarks — Incision. — As for Exposure of Ureter. Operation. — Suturing is generally done with fine silk, or with very fine catgut— carried upon a fine, curved needle, held in a needle-holder. The edges of the wound are brought together by interrupted sutures, generally in- troduced in the Lembert fashion — passing through the fibrous and part of the muscular coats — but carefully avoiding the penetration of the mucous coat — union taking place by growth of the connective tissue of the apposed surfaces, which is rendered raw in exposing the ureter. The following summary sug- gests the appropriate methods for dealing with the various sorts of wounds of the ureter: — (1) Longitudinal wounds; (a) Close by fine silk (or fine chro- mic gut) Lembert sutures. Reinforce, if possible, by folding or stitching over the suture-line a fold of peritoneum, or an omental graft, (b) Or excise the piece and do an end-to-end ureteral anastomosis. (2) Oblique wounds, incomplete; (a) Same as above (1). (b) Or complete the oblique division and treat as a complete oblique division (v. i.). (3) Transverse wounds, incomplete ; (a) Lembert sutures, (b) Divide the upper lip of the wound in its center longitudinally upward a short distance. Similarly divide the lower lip of the wound in its center longitudinally downward a short distance. Round off the four corners thus formed with scissors — and suture the borders as in "elbowing" the intestines, (c) Having divided and incised as just de- scribed, suture as in the operation of ureteroplasty (page 1080) (see Figs. 781-783). (d) Or complete the transverse division and do an end-to-end anastomosis. (4) Oblique wounds, complete; (a) Oblique end-to-end anastomosis. (5) Transverse wounds, complete ; (a) Transverse end- to-end anastomosis. io8o OPERATIONS UPON THE ABDOM1NO-PELVIC REGION. URETHROPLASTY. Description. — A congenital or acquired stricture may be encountered in the course of the ureter. It is often possible to widen the caliber of such a stricture by applying the method adopted in pyloroplasty (page 984). A longitudinal incision through all the coats of the ureter is made through the strictured portion — the lips of which are then sutured in a transverse direction by means of a fine silk suture. Upon tying these sutures a distinct increase of caliber is secured. (Figs. 781-783.) *JrMU& A B C Figs. 781-783. — Urethroplasty: — A, Axial incision through narrowed ureter; B, Sutures placed in the long axis of the ureter; C, The preceding sutures tightened, thus enlarging the caliber of the ureter transversely. (Redrawn from Duval.) URETERO-URETERAL ANASTOMOSIS (URETEROURETEROSTOMY). Description. — Junction, or "splicing," of ends of ureter — by suturing alone — or by suturing aided by supports. Indicated in wounds accompanied by no loss, or very little loss, of substance. Preparation — Position — Landmarks — Incision. — As for exposure of ureter. Or, as is usually the case, the ureter may be exposed in the course of some other operation. Operation. — Having exposed the ureter, uretero-ureterostomy may be accomplished in one of several ways: — (1) Transverse End-to-end Uretero-ureterostomy by Suturing, without Support (Schopf, Cushing, and others) : — (a) The ends are brought together and the walls are sutured with fine silk in small, fully curved needle, held in holder — the sutures passing through the free edges of the fibrous and muscular coats of the divided ends (Fig. 784). (b) Or Van Hook's method of anastomosing after incomplete transverse division may be used. Make a longitudinal incision extending from the center of each lip of the transverse wound upward and downward, each for a distance equal to the transverse URETERO-URETERAL ANASTOMOSIS. 1081 diameter of the ureter. The sharp angles are then rounded off — and the lips of the wound are then sutured longitudinally, so as to widen the site of suture and avoid subsequent stricture. This is, practically, an ureteroplasty. (2) Transverse End-to-end Uretero-ureterostomy by Suturing, with Support (Tuffier) : — The divided ends are brought together over an ureteral catheter or bougie — and are then sutured as in the above method — ■ after which the catheter is withdrawn through an incision made in the ureter opposite the distal end of the catheter — and the longitudinal wound thus made for its withdrawal is sutured up as a simple longitudinal wound. (Fig. 785.) (3) Oblique End-to-end Uretero-ureterostomy by Suturing, without Support (Bovee) : — To lessen tendency to contraction, the ends are divided obliquely — then dilated with special forceps for about 2.5 cm. (1 inch) — then approximated — and sutured with fine silk in fully curved needle, through Fig. 784. — Ureterorrhaphy without Support (SchofT, Cushing, and others): — The obliquely divided ureter is seen sutured with interrupted Lembert sutures passed through the outer coats. fibrous and muscular coats only — the sutures used being alternating rectangu- lar and interrupted. The peritoneum is then so adjusted as to exclude the sutured ureter from the peritoneal cavity. (4) Uretero-ureterostomy by End-into-end Invagination, with Support, without Splitting (Markoe): — This method was resorted to in division of the ureter near the bladder. Two traction-sutures, each threaded upon two needles, are passed through the proximal ureter near its free end, from within outward and nearly 2 mm. (about y 1 ^ inch) apart. The needles are then made to draw the traction-sutures through the wall of the distal ureter, entering in the same relative position and at the same distance apart, passing from within outward. An ureteral catheter is then passed through the distal ureter into the bladder and out of the meatus, being caught by forceps passed Fig. 7S5. — Ureterorrhaphy with Sipport : — Ureteral catheter is seen within the ureter, over which interrupted sutures are passed through the outer coats of the ureter. through the female meatus (or might be passed from the urethra, by means of a cystoscope, in the case of a male) — the opposite end of the catheter passing into the distal ureter. Over this the proximal ureter is invaginated into the distal, by the traction-sutures — which are then tied. Reinforcing circular suturing is used at the line of junction, passing through all the coats of the distal and through the fibrous and muscular coats of the proximal portions. (5) Uretero-ureterostomy by End-into-end Invagination, without Support, without Splitting (Poggi) : — Dilate the distal end with special for- ceps — place one (or two) pair of traction-sutures through the proximal end — two needles upon single thread, introduced nearly 2 mm. (about yg inch) apart, 1082 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. in the same horizontal plane, and about 3 mm. (£ inch) from within the lower end of the proximal portion of the ureter — brought out — and the needles passed from within outward in the distal end, the same distance apart and about 7 mm. to 1.3 cm. (^ to \ inch) from the free end, and opposite the points of penetra- tion above. The proximal end is then invaginated into the distal by traction, and the sutures tied. This invagination is then reinforced by a continuous or interrupted suture applied around the line of union, including all the coats of the distal and the fibrous and muscular coats of the proximal segments. Figs. 786 and 787. — Ureteroureterostomy (Robson-Winslow Method): — A, The intussusception being invaginated in the split intussuscipiens; B, the intussustipiens sutured about the intussusceptum. (6) Uretero-ureterostomy by End-into-end Invagination, without Support, with Splitting (Robson, Winslow): — Slit the upper distal end longitudinally — place one or two pairs of traction-sutures as above and in- vaginate in the same manner — followed by suturing the slit in the distal end over the proximal end. If necessary, reinforce with circular suturing, as ab< >ve. (Figs. 786 and 787.) Fig. 7S8. — Uretero-ureterostomy, by Van Hook's Method Van Hook.) -I, First step. (Modified from (7) Uretero-ureterostomy by Lateral (End-into-side) Implantation (Van Hook) : — Ligate the distal part of the ureter circularly, about 3 to 6 mm. (| to \ inch) from its free end, with silk or gut (Fig. 788). Commencing about 6 mm. (\ inch) below this ligature, make a longitudinal incision through all the coats of the distal ureter for a distance equal to the diameter of the ureter — with fine, narrow knife, or sharp-pointed scissors. Make a longitu- dinal incision in the proximal ureter, from the margin of the free end upward for about 6 mm. (\ inch). A traction suture of fine catgut, upon two needles, is passed just as in the invagination method — about 3 mm. (^ inch) from the free URETERO-URETERAL ANASTOMOSIS. 1083 end, and from nearly 2 mm. to 3 mm. (y 1 ^ to £ inch) apart, and upon the lateral aspect opposite to the vertical slit (Fig. 789). Pass the points of both needles through the slit into the distal ureter, and thence for about 1.3 cm. (h inch) below its lower end — thence penetrate the wall of the distal ureter outward, upon the same aspect of the ureter as the slit, and both needles held at the same horizontal level (side by side — not one over the other). Unthreading the needles, draw (invaginate) the proximal into the distal ureter, until the slit in the proximal is well within the slit in the distal — and then tie the sutures. Complete the union by suturing the edges of the vertical incision around the ^^SSSiPSiijjj Fig. ;Sq. — Ureteroureterostomy, by Van Hook's Method: — II, Second step. (Modified from Van Hook.) proximal, the sutures passing through the fibrous and muscular coats (Fig. 790). Further protect the site by peritoneum folded around it, if the operation be intraperitoneal. Note — Where the proximal end (from distention or other cause) is too large to go into the distal, it may be narrowed by placing and tying two or more sutures in its free end. Both ends of these "narrowing sutures" are then threaded — and all six needles passed into the slit, in pairs, as in Van Hook's operation, and the threads tied. (8) Uretero-ureterostomy by Ligation of Severed Ends and Side- to-side Anastomosis (D'Urso and Fabii's modification of Monari's method; : — Monari ligated both ends of the severed ureter and then anastomosed these ends side-to-side, after the corresponding manner of uniting pieces of intestine laterally. D'Urso and Fabii first introduced catheters into the two ends, to distend the ureters during suturing — then withdrew the catheters and circularly ligated the divided ends of the ureter. (Figs. 791-793.) Fig. 700.— Ureteroureterostomy, by Van Hook's Method: — III, Third step. (Modified from Van Hook.) Comment. — (') In the operations of invagination, instead of introducing the traction-sutures through all the coats of the proximal end, it would be better to introduce a single needle on a thread, from without through the fibrous and muscular coats alone — then, keeping the needle on the original end, thread an- other needle on the other end, and proceed as is ordinarily done. Thus no capillary thread passes into the lumen of the proximal portion — and the ap- 1084 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. proximated outer wall of the proximal portion to the inner wall of the distal portion blocks off the wall of the distal ureter. (2) In some cases the kidney has been lowered somewhat from its original site, in order to furnish additional length for uretero-ureteral anastomosis. .*, Figs. 791-793. — Ureteroureterostomy — D'Urso and Fabii's Modification of Monari's Side-to-side Anastomosis: — A, Closure of the ends and suturing of the ends side to side, with line for incision into each ureter; B, Each ureter incised and the catheter passed into the lumina; C, The openings into the ureter closed — the site of the temporary catheter being shown. (Redrawn from Duval.) Comparison of Methods of Uretero-ureterostomy. — Van Hook's Lateral Implantation method is probably the best for all-around use. End- to-end anastomosis is more apt to be followed by leakage. End-into-end anas- tomosis is less apt to be followed by leakage and stricture. In end-into-end anastomosis about 2.5 cm. (1 inch) of ureter is taken up. In end-in-side im- plantation about 4 cm. (ih inches) of the ureter is consumed. IMPLANTATION OF URETER, IN GENERAL. After division of the ureter, or after excision of a part of the ureter (by accident or other cause), the lower end of the proximal portion of the ureter may be implanted, or "grafted," into the bladder, large intestine (ca?cum, sigmoid, or rectum), vagina, opposite ureter, pelvis of opposite kidney, upper portion of the distal end of the same side (which is really uretero-ureterostomy), or into the skin. When a simple division has taken place, without loss of substance, a simple implantation, or anastomosis of the proximal into the distal end (uretero- ureterostomy), is best. Where a loss of some extent of ureter has occurred, a uretero-ureterostomy is still the best course, where it is possible to approximate the ends without too great tension. Where the loss is too great for this, an implantation into some other structure is necessary. The most usual sites (in order of preference) into which the proximal end of the ureter is implanted are — bladder, large intestine (rectum), and skin. IMPLANTATION OF URETER INTO BLADDER. 10S5 The distal end is ligated and left in situ — some surgeons first cauterizing the stump. As many of the ureteral implantations are done for accidents to the ureter occurring during other operations, the parts are usually already exposed — re- quiring none or but little more dissection to fully expose them. IMPLANTATION OF URETER INTO BLADDER CYSTOSTOMY) . (URETERO- Description. — Implantation of ureter into male or female bladder. In Uretero-cystostomy the implantation itself may be intraperitoneal or extra- peritoneal. Where possible, the extraperitoneal implantation is preferable to the intraperitoneal implantation — although when the latter is done, the opera- tion-site should be so walled off by peritoneum as to practically amount to an extraperitoneal implantation. As to the manner of exposing the ureter, this is done generally by an intraperitoneal operation. It is sometimes done through an extraperitoneal route, as, for example, in performing a suprapubic cystotomy, followed by exposure of the ureter by cutting through the base of the bladder. It may also be exposed extraperitoneal!}' through the vagina. In in Figs. 794-796. — Uretero-cystostomy :— I, Cut end of ureter is shown grasped in forceps and pro- truded into bladder through incision in wall of latter. II, Sutures are passed through outer coats of bladder and ureter. Ill, Ureter is shown sutured into bladder. The peritoneum is incised over ureter in I. the following description it will be supposed that the ureter is to be severed near its vesical end. Preparation — Position — Landmarks — Incision. — As for median ab- dominal section below the umbilicus. Operation. — (1) Having performed a lower median abdominal section, with the patient in the Trendelenburg position, displace the intestines toward the diaphragm and to the opposite side — isolating the ureter and tracing it to the bladder. (2) Incise the posterior peritoneum over the site of the intended division of the ureter. Having freed the peritoneum and connective tissue from the ureter by blunt dissection, divide the ureter transversely. Ligate the distal end of the ureter and return it to its site (Figs. 794 and 796). (3) Make an incision through all the walls of the bladder, as nearly the normal site as 1086 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. possible, and in the long axis of the bladder, and just large enough to admit the ureter. The ureter is then grasped with long, thin forceps and carried within the bladder sufficiently far for its free end to project slightly within the bladder- cavity. With a fine, curved needle, and with silk or gut, the edges of the blad- der-wound are sutured around the ureter, passing through all the coats of both bladder and ureter — except the mucous membrane. (4) The peritoneum is then sutured around the site of junction, so as to practically render it extra- peritoneal. (5) Where the technic has been satisfactory, the abdomen may be entirely closed at once — which is always preferable. Otherwise drainage is temporarily established. Comment. — (I) Where much ureter has been lost, the bladder is some- times drawn up into the pelvis and sutured to the broad ligament, in the female, or other structure, before implanting. (2) In the female special forceps may be introduced through the vagina, and thence through the incision made into the bladder to receive the ureter — seizing the ureter and drawing it through. In such cases the bladder is cut through from the outside upon a sound intro- duced through the urethra. (3) In order to counteract the upward pull upon the implanted end of the ureter, gut traction-sutures are sometimes placed in the end of the proximal portion, in the case of the female, and carried out the urethra and tied to the dressing. (4) To imitate nature, the ureter has been sutured into the bladder through an oblique opening. And to give a valve effect, the tip of the free end in the bladder has been split. IMPLANTATION OF URETERS INTO THE LARGE INTESTINE — (URE- TERO-RECTOSTOMY) BV FOWLER'S METHOD. Description. — Implantation and suturing of the ureters into the long axis of some part of the large intestine, generally either into rectum, sigmoid flexure, or caecum. Indicated especially where the bladder has been removed. The difficulties of this implantation are not so great — the chief source of failure and of death being infection of the ureters and kidneys from the intestinal tract. In Fowler's operation, which will be here described, the implanta- tion into the rectum (uretero-rectostomy) is made in such a manner as to open obliquely upon an artificially formed valve of mucous membrane, which valve, together with the circular action of the muscular fibers of the intestine, will tend to shut off the ureters and kidneys from ascending infection from the bowel, especially during defecation. Preparation. — As for median abdominal section — with especially thor- ough cleansing of the intestinal tract, and particularly the rectum. Position. — Patient in the Trendelenburg position. Surgeon to patient's left, generally. Assistant, opposite. Landmarks — Incision. — As for median abdominal section below the umbilicus. Operation. — (1) The sphincter of the anus is first dilated. (2) The abdominal cavity is opened as in ordinary abdominal section. (3) Displace the intestines downward (toward the diaphragm) and laterally, exposing the site of the ureters. (4) Incise the peritoneum over the ureters, from the brim of the pelvis to the bladder, and free, by blunt dissection, the ureters from their bed to this extent. Ligate the ureters near the bladder- wall and divide them obliquely upon the side of the ligature toward the kidneys — the oblique division being at the expense of the under (posterior) surface of the proximal ends of the FOWLER'S URETERORECTOSTOMY. 1087 ureters. (They may be first divided transversely and then the proximal end beveled obliquely as above.) (5) Incise the anterior wall of the rectum longi- tudinally in its center, for about 7 cm. (2I inches) — the incision being so placed that its center will correspond with a convenient approximation of the cut ends of the ureters. This incision passes through the serous and muscular coats only. Dissect back, on either side, the serous and muscular coats, exposing a diamond-shaped area of submucous tissue — an assistant holding aside the margins with temporary traction-sutures or tenacula (Fig. 797). In the lower half of the exposed area of submucous tissue cut a U-shaped flap about 2.5 cm. (1 inch) long, with free end downward, incising through the mucous membrane into the lumen of the rectum. Turn the free end of this flap upward and out- ward upon itself, so that the apex will point to the base, and the mucous surface will be uppermost — forming a flap with mucous surface upon one side, and submucous upon the other — and suture the two surfaces of the reflected flap together along their lateral aspect (Fig. 79S). (6) Unite the two ureters upon Fig. 797.— Ureterorectostomy, by Fowler's Method: — I, The serous and muscular coats of the rectum are incised and retracted. A U-shaped flap is outlined upon the mucous membrane. (Modified from Fowler.) their inner aspects by two or three interrupted fine gut sutures passed through their fibrous and muscular coats, one placed near their free end, the second about 2 to 2.5 cm. (J to 1 inch) above, and a third may be similarly placed above the second, if there be room. The ureters will be thus so united as to leave the obliquely beveled ends pointing posteriorly. (7) The two parallel, united ureters are now so placed upon this flap of mucous and submucous tissue that their obliquely beveled surfaces will lie undermost, and in contact with the normal mucous surface of the reflected end of the flap — and with their tips in apposition with the upper part of the reflected flap (so as to leave ample free flap below to serve as a valve). Suture the free ends of both ureters to the mucous flap, by fine gut sutures passing through only the fibrous and serous coats of the ureters, and well into both thicknesses of the mucous flap. The ureters are also sutured above to the submucous tissue of the flap. (8) The suturing having been completed, carefully push the mucous flap and attached ends of the ureters back into the rectum. Then suture together, with continu- io88 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. ous or interrupted catgut, the edges of the opening through the submucous and mucous coats left by the flap, continuing the suturing upward a little beyond the base of the flap, and beneath the ureters, until the furrow caused by approxi- Figs. 798-800 — Uretero-rectostomy, by Fowler's Method: — II, The U-shaped flap is incised and turned upward. The two beveled ureters are connected by two sutures, and then sutured to the mucous flap. (Modified from Fowler.) Fig.801. — Ureterorectostomy, by Fowler's Method: — III, The mucous flap and attached ureters are then buried within the bowel by suturing the margins of the opening through the mucous membrane. (Modified from Fowler.) mating the edges has been obliterated (Fig. 800). (9) Suture together the edges of the serous and muscular coats of the rectum with interrupted silk or URETERECTOMY, IN GENERAL. 1089 chromic gut, thus further burying in the tips of the ureters, and also burying in that portion of the ureters lying obliquely between the submucous and serous coats, insuring an oblique passage between the rectal coats of about 3 cm. (i| inches). One or two of the sutures, in this line of suturing, should include the outer coats of the ureters (not entering their lumen). The outer coats of the rectum, in this line of suturing, should be well sutured around the ureters at the site where they pass between these coats. (Fig. 802.) (10) Temporary drainage may be pro- vided, if deemed necessary — otherwise the abdomen is closed as usual. Comment. — (1) A permanent valve is thus formed, with a mucous surface to the ureter, and a mucous surface to the lumen of the gut, thus clos- ing the ends of the ureters as the bowel distends with combined feces and urine, aiding the control and safety from infection — which the oblique pas- sage of the ureters through the rectal wall further aids. (2) Various other methods of intestinal im- plantation have been done. Maydl transplanted both ureters, including an elliptical portion of the trigone of the bladder, into the rectum or sigmoid flexure — thus retaining the natural functioning of the ureteral openings. IMPLANTATION OF URETER UPON THE SKIN. Fig. 802.— Ureterorec- tostomy, by Fowler's Method : — IV, The ureters and mucous flap are still further buried by suturing the edges of the incision through the serous and mus- cular coats. (Mollified from Fovs lei . 1 Description. — Implantation of the ureter upon the skin of the loin or abdomen. The implanta- tion upon the former site is preferable — as extension of the ureter through the abdominal cavity furnishes a band for possible intestinal interference. Skin- implantation, however, is the least desirable form of implantation, because of the inconvenience and annoyance of this exit for the urine, and because of the likelihood of infection. Operation. — (1) If the ureter to be implanted be encountered during an operation by the oblique Lumbar incision, — after ligating the distal end of the severed ureter, the proximal end is loosened up by blunt dissection sufficiently to free it for the requisite length — and is then sutured into the skin of the lumbar wound after splitting its end — the remainder of the wound being closed by suture in the ordinary fashion. (2) If the ureter be encountered in the course of a median abdominal section, a counter lumbar opening is made and the ureter implanted, as just described. Comment. — The proximal end of the ureter may also be sutured to the skin at the nearest point possible to the bladder, in hope of subsequently doing a plastic operation for the establishment of the ureter. URETERECTOMY. IN GENERAL. Description. — Excision of ureter, in whole or in part. Partial ureterec- tomy is the removal of a portion of the ureter, followed by either an uretero- ureterostomv between the remaining ends, or an implantation of the ureter into some locality. Complete ureterectomy consists in the removal of the entire 69 1090 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. ureter — and implies, of course, the removal also of the corresponding kidney; that is, nephro-ureterectomy. Ureterectomy may be done extraperitoneally or intraperitoneally. Extra- peritoneal ureterectomy is generally done through the oblique lumbar incision. Intraperitoneal (transperitoneal) ureterectomy is usually done through an anterior abdominal section. Indicated in tuberculosis and suppuration of the ureters. Partial ureter- ectomy is sometimes done accidentally in operating for other conditions. PARTIAL URETERECTOMY BY OBLIQUE LUMBAR INCISION. Description. — The ureter is exposed extraperitoneally by the above in- cision, and a portion of its extent removed — followed by an uretero-ureteros- tomy, where the amount removed is not too great — or by an implantation, where the amount removed and the site of removal indicate it. A partial ureterectomy is generally accidentally done, especially in intra-abdominal operations for the removal of tumor. Preparation — Position — Landmarks — Incision. — As for exposure of the ureter extraperitoneally by oblique lumbar incision, page 1076. Operation. — If the ureterectomy be deliberately done — the kidney is ex- posed — the ureter isolated by tracing downward from pelvis of kidney — and is then dissected up from its bed by blunt dissection and by carefully peeling it away from the peritoneum. A limited portion is now excised with scissors — after ligating below the point of division — and clamping with special clamp above. The proximal and distal ends are then freed up sufficiently to enable the gap formed by the excision to be bridged. The ends are brought together and an uretero-ureterostomy (preferably by Van Hook's method, see page 10S2) is done — or an ureteral implantation is performed. TOTAL URETERECTOMY, TOGETHER WITH REMOVAL OF KIDNEY, BY ANTERIOR MEDIAN ABDOMINAL SECTION. Description. — Total Nephro-ureterectomy consists in the removal of the kidney and of the entire ureter. Generally resorted to for tubercular or sup- purative disease of kidney and ureter. The removal may be made extraperi- toneally by the oblique lumbar incision, as just described in partial ureterec- tomy, — or intraperitoneally, by anterior abdominal section in the median or semilunar line. The exposure of the kidney and ureter extraperitoneally by an oblique lumbar incision has been described and pictured at pages 1053 and 1055. Preparation — Position — Landmarks — Incision. — As for median ab- dominal section. Operation. — Having opened the abdominal cavity and displaced the in- testines toward the median line, divide the posterior peritoneum upon the outer aspect of the colon and reflect it toward the spinal column — thus exposing the kidney and ureter. The kidney is now freed and its pedicle tied off as de- scribed under total nephrectomy by the abdominal route. The ureter is sim- ilarly freed by blunt dissection. All vessels are ligated. Having severed the pedicle of the kidney, except the ureter, the kidney is separated from its bed — ■ and, by gentle traction upon it and the ureter, the ureter is traced down to the bladder. The vesical end of the ureter is doubly ligated close to the bladder and divided between the ligatures. The free end of the ureteral stump may be SURGICAL ANATOMY OF THE BLADDER. 1091 sterilized. The posterior peritoneum is dropped back into place over the site occupied by kidney and ureter — and may be sutured here and there with in- terrupted gut sutures, though it generally remains readily in place and adheres to the connective tissue from which raised. Temporary drainage may be established, where specially indicated — otherwise the abdomen is closed. XIV. THE BLADDER. SURGICAL ANATOMY. Description. — The bladder is a musculo-membranous sac, mainly situ- ated in the pelvic cavity, between pubes and rectum in male; and between pubes in front, and cervix uteri and upper part of vagina behind, in female, — entirely surrounded by recto-vesical fascia, and covered above by peritoneum. Consists of serous (peritoneal), muscular, submucous (areolar), and mucous coats. In infancy the bladder projects above the os pubis and is more of an abdominal organ than in the adult. When empty — in the adult, the bladder lies deeply in the pelvis, flattened antero-posteriorlv. When moderately dis- tended — it is rounded and still within the pelvis. When fully distended — it is ovoid and projects into the abdominal cavity. When greatly distended — it may extend nearly to the umbilicus. The long axis of the bladder, which in- clines to the vertical, runs from a point between the os pubis and the umbilicus (dependent upon the amount of distention) downward and back- ward toward the tip of the coccyx. The vertical axis is greater in the male — the transverse greater in the female. Relations. — (1) Summit : — Connected with abdominal wall by urachus (remains of part of allantois), which passes from apex of bladder, between transverse fascia and peritoneum, to umbilicus; obliterated hypogastric arteries, passing upward from side of bladder, on each side of urachus. (2) Superior, or abdominal surface : — Entirely covered by peritoneum, from summit and obliterated hypogastric arteries to base of bladder; sigmoid flexure (in male); part of vasa deferentia (in male) ; uterus (in female) ; small intestines (in both sexes). (3) Antero-inferior, or pubic surface : — Uncovered by perito- neum, and separated from the following structures by the cavum Retzii, or prevesical space; triangular ligament; symphysis pubis; levatores ani and in- ternal obturator muscles; abdominal wall (when distended), separated by recto-vesical fascia. (4) Lateral surfaces : — Upper part covered by perito- neum, above and posterior to obliterated hypogastric arteries, — lower part, below and in front of obliterated hypogastric arteries, is covered by recto- vesical fascia, which separates the lateral surfaces from the levatores ani and surrounds the vesical vessels and nerves; obliterated hypogastric arteries, which cross lateral surfaces obliquely from below upward and forward; vasa deferentia, arching from before backward along subperitoneal aspect of lateral surfaces toward base, crossing obliterated hypogastric arteries, and passing between ureter and wall of bladder; entrance of ureter, at junction of posterior and lateral surfaces, about 5 cm. (2 inches) above the prostate; levatores ani and obturator internus muscles. (5) Postero-inferior surface, or base : — May be subdivided into two parts; — (a) Upper, Peritoneal Portion: — Recto- vesical pouch in male, generally from 1.3 to 2.5 cm. (5 to 1 inch) from pros- tate, up to as much as 5 cm. (2 inches) in marked bladder distention; utero- vesical cul-de-sac in female: — (b) Lower, Non-peritoneal Triangular Por- tion: — In Male, rests upon anterior surface of second part of rectum, inferior 1092 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. part of vasa deferentia and vesiculae seminales; — its boundaries being; Base, reflected recto-vesical fold; Sides, diverging vasa deferentia and vesicuJae seminales; Apex, summit of prostate; — In Female, adherent to anterior wall of cervix uteri, and to upper portion of anterior vaginal wall; — Neck of Blad- der, beginning of urethra. Ligaments. — (a) Five true ligaments: — (1) Two pubo-prostatic, — recto-vesical fascia and muscular tissue — from back of pubic bone to antero- inferior or pubic surface of bladder, passing over superior surface of prostate gland. (2) Two lateral, — recto-vesical fascia — from lateral aspects of pros- tate to sides of bladder and walls of pelvis. (3) Superior ligament, or urachus, — iibro-muscular structure between summit of bladder and umbilicus, (b) Five false ligaments (peritoneal folds): — (1) Two posterior, or recto-vesical folds of peritoneum (in male), — from side of rectum to side of bladder. (2) Two posterior, or utero-vesical folds of peritoneum (in female), — from sides of uterus to posterior surface and sides of bladder. (The posterior false liga- ments form the lateral walls of the recto-vesical and utero-vesical cul-de-sac, and transmit the ureters, obliterated hypogastric arteries, with vessels and nerves.) (3) Superior ligament, — fold of peritoneum reflected over urachus and obliterated hypogastric arteries, from summit of bladder to umbilicus. Relation of Peritoneal Fold to Anterior Abdominal Wall. — The re- flection of peritoneum is carried upward as the bladder is distended. The maximum elevation of the peritoneal fold rarely exceeds 5 cm. (2 inches). Sometimes it fails to reach the upper border of the symphysis pubis. Space of Retzius, or Prevesical Space. — Space between the reflection of peritoneum above and the symphysis pubis below, — and between the bladder posteriorly and the symphysis pubis anteriorly — and occupied by connective tissue. Trigonum Vesicae. — Triangular smooth surface at base of bladder — bounded at each posterior angle by the ureteral opening — and at the antero- inferior angle by the urethral orifice. Orifices of Ureters. — Situated about 3.8 cm. (1^ inches) from base of prostate gland and beginning of urethra — and are a little less than 5 cm. (2 inches) apart, at either end of the base of the trigone. Internal Urinary Meatus. — Lies, in the adult male, from 2 to 2.5 cm. (f to 1 inch) posterior to the symphysis pubis, and from 5 to 6.3 cm. (2 to 2^ inches) above the perineum. It generally lies opposite some part of the upper half of the symphysis pubis. Arteries. — Superior, middle, and inferior vesical, and branches from the obturator and sciatic, in the male, — and the same, with additional branches from the uterine and vaginal, in the female, — all from the anterior trunk of the internal iliac. Veins. — Form plexuses around neck, sides and base, and end in internal iliac vein. Lymphatics. — Accompany the veins and end in the pelvic glands. Nerves. — From hypogastric plexus of sympathetic, and from third and fourth sacral nerves. SURFACE FORM AND LANDMARKS. In young children, the apex of the empty bladder is about 25 cm. (1 inch) above the level of the symphysis pubis. In the adult, the apex of the empty bladder is about on a level with the superior border of the symphysis pubis. THE BLADDER— GENERAL SURGICAL CONSIDERATIONS. 1093 In marked distention the anterior bladder-wall comes closely into contact with the abdominal parietes — without the intervention of peritoneum between the two. For the normal extremes of the peritoneal reflection, see Surgical Anatomy, page 1092. For the position of the peritoneal reflection under surgical dis- tention, see General Surgical Considerations, below. The neck of the bladder is on a level with a line extending horizontally backward from just below the center of the symphysis pubis. Also see position of internal urinary meatus, Surgical Anatomy, page 1092. The depth from the perineal skin to the pelvic floor generally averages from 5 to 7.5 cm. (2 to 3 inches) in the posterior and external part of the perineum — and somewhat less than 2.5 cm. (1 inch) in the anterior part. In the lithotomy position the bladder is about 6.3 or 7.5 cm. (25 or 3 inches) from the perineal surface. GENERAL SURGICAL CONSIDERATIONS. When both bladder and rectum are empty, the apex of the bladder and the peritoneal reflection are slightly below the superior border of the symphysis pubis. When the apex of the bladder is as much as 5 cm. (2 inches) above the svmphysis and resting against the anterior abdominal wall, the peritoneal re- flection is about 2 cm. (f inch) above the upper border of the symphysis. Simple distention of the rectum alone tends to elevate the base of the blad- der without correspondingly elevating the non-peritoneal prevesical space. When the rectum is distended by a rubber bag filled with air or water, the prostatic portion of the urethra is elongated, and the bladder is thereby raised out of the pelvic cavity and the peritoneum pushed upward. The maximum elevation of the non-peritoneal prevesical space is obtained by distending the rectum first and then distending the bladder. The rectal bag is first filled with about 10 or 12 ounces of fluid — and then the bladder is filled with about 8 ounces. Thereby an additional space free of peritoneum is secured in the anterior line. The amount of space uncovered by peritoneum which is thus ordinarily secured generally amounts, altogether, to about 7.5 cm. (3 inches). The bladder, however, is often first filled — and up to 15 ounces may be used. Grav states that after distending the rectum with 420 c.c. water — and then filling the bladder with 500 c.c. — the bladder will be elevated by the rectum sufficiently to make an interval between the lower peritoneal reflection and the upper border of the symphysis equal to S.5 cm. (3yV inches). As the point of reflection of peritoneum, therefore, is not fixed, and as it sometimes comes down to a level with the upper border, or even below, the symphysis pubis, it is never absolutely safe to plunge a trocar directly into the bladder, even immediately above the upper border of the symphysis. It is always better to expose the bladder-wall by a limited median incision before using the trocar. Though not to be recommended, the bladder may be punctured from the rectum, in the lower, non-peritoneal surface at the base of the bladder. No vessels of any size cross the median line of the abdomen or of the peri- neum — the two sites through which cystotomy is generally done. The artery of the bulb, especially when arising normally, is not generally cut in perineal lithotomy. If the artery of the bulb arises from the accessory pudic it will lie more anteriorly than normal — and well out of the way. If, however, it arises from the pudic sooner than usual, it will cross the perineum more posteriorly and will be almost certainly cut. IOQ4 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Perineal incisions made into the neck of the bladder should not exceed the limits of the prostate. The prostatic plexus of veins is likely to be wounded in lateral perineal lithotomy. The ejaculatory duct is apt to be cut in the same operation if the incision be too far posterior. INSTRUMENTS. Scalpels; bistouries, straight and curved, sharp and blunt; lithotomy knives; scissors, straight and curved, blunt and sharp; forceps, dissecting and toothed; artery-clamp forceps, long and short; grooved director; special grooved directors and perineal guides; grooved lithotomy staffs, median and lateral; tenacula; probe; retractors, various; blunt dissector; sponge-holders; trac- tion-loops; Clover's crutch; rectal bag; catheters; sounds; whalebone guides; tunneled sounds; lithotomy forceps; lithotomy scoop; lithotrite; evacuator; irrigating syringe; special bladder forceps; cystoscope; special electric illumi- nator; trocar and cannula; exploratory syringe; needles, straight and curved; needle-holder; ligatures and sutures, silk and gut; drainage-tubing; gauze. INTRODUCTION OF SOUND OR CATHETER. Description. — The general method of entering the male bladder by the urethra is the same in all essentials — whether by metallic sounds, catheters, lithotrites, or cystoscopes. Soft instruments are not subject to much guiding, but generally enter the bladder by being simply protruded through the urethral canal without special effort to direct them through the anatomical curves. The passage of instruments in the female is simple. Passage in the Male. — (i) The glans and the meatal opening are cleansed. (2) The patient lies supine, near the edge of the table — shoulders slightly elevated — thighs slightly flexed and rotated outward by bending the knees (to relax the muscular tension). The surgeon stands on the left, just above the hips, facing the patient's side. (3) The sound, or catheter, warmed, lubri- cated, and disinfected, is held lightly in the right hand, between thumb and first two fingers — the handle at first parallel with the abdominal wall. Thus held, its point is introduced into the meatus, the lips of which are parted by the sur- geon's left index and thumb to receive it — the glans and penis being held ver- tically in the surgeon's left fingers. As the instrument is pushed onward and downward, the penis is correspondingly drawn upward and over the instrument. (4) As soon as the instrument is felt to have entered about io or 13 cm. (4 to 5 inches), and to be rounding toward the subpubic arch, the handle is gradually elevated until the perpendicular is reached — allowing the instrument to gravi- tate through the canal and beneath the pubic arch. (5) As this occurs, the handle is continued in its sweep forward, directing the point through the tri- angular ligament — onward through the membranous and prostatic urethra — until the end is felt to glide into the bladder — when the handle will be found pointing directly away from the bladder and slightly downward — having passed through a semicircle in the vertical plane. (6) In withdrawal, the above steps should be exactly reversed. Comment. — (1) The sound should first hug the floor of the spongy ure- thra, until the lacuna magna (on the roof, 2.5 cm. [1 inch] from the meatus) is passed — and then gently hug the roof for the balance of the way through the PARACENTESIS YESIC.E. 1095 spongy, membranous, and prostatic urethra. (2) By carrying the handle of the instrument forward and between the thighs too soon, the tip of the instru- ment is made to hug the roof of the urethra too suddenly and closely, and is apt to lodge against the upper part of the anterior aspect of the triangular ligament, and thus fail to enter the membranous urethra. (3) On the other hand, the instrument sometimes fails to pass the triangular ligament because of lodging against the lower part of the anterior aspect of the triangular ligament, the handle not being depressed enough — and, in such cases, is made to glide on by depressing the handle more — or by lifting the lodged point upward by the left index-finger in the rectum, or even by pressure against the perineum behind the scrotum. (4) The instrument may be at first introduced while held about parallel with the left Poupart ligament — that is, over the left groin — and then swept into the median line as it descends. (5) If the beak of the instrument revolves readily, the sound is in the bladder. Passage of the Female Sound or Catheter. — (1) The patient lies supine, with hips and knees semiflexed, and thighs separated. (2) Separate the labia with left thumb and index. Holding the instrument between the right thumb and index, the index extending beyond the end of the instrument, pass the tip of the right index just within the vaginal orifice — withdraw the finger partly, hugging the upper wall of the vagina — and, as the finger glides out of the vagina upon the vestibule, the prominent urethral papilla is felt (about 1.3 cm., or h inch) above the junction of the vagina and vestibule — upon which is situated the meatus — into which the instrument is then introduced and protruded into the bladder. PARACENTESIS VESIGE. Description. — Puncture of the bladder-wall by cannula and trocar, or by aspiratory syringe. Indicated in retention of urine. The bladder may be punctured immediately above the pubis, just below the symphysis pubis, through the rectum, or through the prostate gland. The suprapubic puncture is practically the only method of puncture now resorted to — and will be here described. Preparation. — Ascertain that the bladder is well distended. Shave in the region of the median line, just above the symphysis pubis. Position. — Patient supine, — or sitting upright, supported. Surgeon on patient's right, facing him. Point of Puncture. — In median line, immediately above the upper border of the symphysis pubis. Operation. — Having outlined the distended bladder by percussion — a curved cannula and trocar (which are better than the straight) are taken in the operator's right hand, with the convexity upward, and so held, with the index- finger upon the shaft of the instrument, that the depth to which it may enter the bladder is fixed in advance. The bladder is steadied by the surgeon's left thumb and index placed on each side of the median line. The instrument is thrust sharply but gently into the bladder, entering in the median line just above the symphysis pubis, and directed backward and downward — piercing skin, superficial fascia, passing between the inner borders of the recti and pyramidales (or through their muscular substance), prevesical space, anterior bladder-wall, and into the bladder. The trocar is then withdrawn and the cannula left in situ until the urine has come away, chiefly of its own accord, and partly aided by gentle pressure. Upon withdrawal of the instrument, the opening is at once closed by sterilized cotton and collodion. 1096 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Comment. — (I) Local anesthesia should he first used. (2) Incision of skin may be first made and then trocar introduced. This may be done either to avoid the most difficult part of the puncture mechanically, namely, the penetration of the tough skin with a comparatively dull instrument, — or it may be done, as mentioned under Surgical Considerations, for the purpose of first e.xposing the bladder before puncturing. (3) If the skin be drawn down- ward over the symphysis just before puncture, a valve-like opening will be formed. (4) In those rare cases in which the reflection of peritoneum comes very low down, to or behind the symphysis pubis, it will almost certainly be wounded — not being possible to avoid it, except, were it known in advance, by exposing the area by dissection and pushing the peritoneum upward before the puncture. Puncture of the peritoneum, however, is exceedingly rare provided the bladder be well distended, and a curved instrument be used. CYSTOTOMY IN GENERAL. By Cystotomy is meant the incision of the bladder. The less correctly used term " lithotomy" (or "stone-cutting," literally) is equivalent to "Cystotomy for removal of calculus." Cystotomy is indicated in calculus, foreign body in the bladder, exploration, drainage, access to prostate, tumors, diseased conditions of the mucous mem- brane, catheterization of the ureters intravesically, etc. Cystotomy may be suprapubic, median perineal, lateral perineal, bilateral perineal, medio-lateral perineal, medio-bilateral perineal, vaginal, and by ex- ternal urethrotomy. The first three of these are, practically, all which are now done — and of these three, the suprapubic is the one which is most frequently performed. For the removal of large stones, the suprapubic route should always be chosen — while it is preferable for the removal of any calculus. For the pur- poses of drainage alone, not weighing other considerations, the perineal route is the best. SUPRAPUBIC CYSTOTOMY. Description. — Incision of the bladder above the symphysis pubis, through the prevesical space. Indicated for calculi — especially large ones — or encysted small ones; exploration; drainage; tumors; foreign bodies; access to prostate gland. Much more frequently performed than median or lateral perineal cystotomy. Preparation. — Pubes shaved; rectum emptied; rectal bag in rectum, well above the sphincters, in hollow of sacrum, and filled with 10 to 12 ounces of water (or with air); bladder irrigated and filled with 8 to 10 ounces of water (after the rectum has been distended) ; penis carefully ligated with rubber band to keep water in bladder. Position. — Patient supine. Surgeon on patient's right. Assistant oppo- site. Landmarks. — Median line; upper border of symphysis pubis. Incision. — About 7.5 cm. (3 inches) in length — placed in the median line — beginning about 6.5 cm. (2^ inches) above the symphysis pubis and ex- tending to a point about 1.3 cm. {\ inch) above the symphysis. The extreme upper and lower ends of this incision are not carried to the lowest depths of the wound — but are only superficial and are to allow for retraction of the parts. SUPRAPUBIC CYSTOTOMY. 1097 Operation. — (1) Divide the skin and superficial fascia, clamping, if neces- sary, any bleeding vessels. Sometimes abundant fatty areolar tissue must be traversed. The interval between the inner borders of the recti and pyramidales is sought, but is frequently not demonstrated — and, if not, the muscle tissue is divided in the line of its fibers, without further needless search — the edges of the wound being well retracted as they are deepened (Fig. 803). (2) The transversalis fascia is encountered and similarly divided in the median line — and the prevesical space reached. The areolar tissue overlying the prevesical space is cautiously divided in the median line— extreme care being here used, for the purpose of recognizing the lower reflection of peritoneum, especially if it be prolonged unusually far down. The peritoneal fold must be sought from below (near the symphysis) upward, the dissection beginning immediately Fig. 803.— Suprapubic Cystotomy :— A, Margins of recti and pyramidales muscles ; B, B, Pre\-esi- cal areolar tissue freed and retracted from bladder; C, Peritoneum retracted upward (unopened); D, D, Tenacula passed through serous and muscular coats of bladder and subsequently used to re- tract lips of bladder-wound. above the upper border of the symphysis. As soon as encountered, the peri- toneal fold is carefully pushed upward, with the left index, off the front of the bladder, so as to be out of the way of injury. All the prevesical fatty areolar tissue should be divided accurately in the middle line, until the bladder-wall is well exposed — which is generally recognized by its pink muscular appearance, convex contour, fluctuation, and elasticity. The lips of the wound should be well retracted — and any bleeding from the prevesical veins controlled. (3) The bladder is steadied by two tenacula passed transversely across the median line through the outer coats, at the extreme upper and lower limits of its exposed surface, and held in the two hands of the assistant. When all is in readiness, the operator, with sharp, narrow knife, by a quick, controlled thrust, stabs through the bladder-wall just below the upper tenaculum (in- 1098 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. suring, by this method, the penetration of all coats of the bladder — and not the protrusion of the muscular coat ahead of the knife-point, as sometimes happens in a slowly made incision) and cuts downward in the middle line toward the lower tenaculum, increasing the extent of the incision as he draws the knife out. The contained fluid immediately escapes — but, owing to the holding up of the bladder, but a small amount enters the prevesical wound. Two silk retraction- sutures are now placed through the center of each lip of the bladder-wound — and the tenacula withdrawn. Some surgeons, instead of using the tenacula as above, originally place these traction-sutures, with a curved needle, passing through the outer coats of the bladder, parallel with the future incision, and about 1.3 cm. (h, inch) apart. Hemorrhage from the edges of the bladder- wound may occur at first, but generally is easily controlled. The ligature about the penis is now relaxed and the bladder emptied. (4) The assistant who held the tenacula now holds the bladder-lips apart by traction-sutures. The opening into the bladder is enlarged to the desired extent in the median line, upward and downward — carefully guarding the peritoneum above, which especially tends to prolapse when the bladder is empty. A finger is introduced and the cavity of the bladder examined — and the special object of the operation accomplished. If it be a calculus to be removed, special forceps, guided by the introduced finger, grasps the stone and withdraws it. The rectal bag may be emptied and withdrawn as soon as the bladder is entered — or, if not distended before, may be then distended to bring the fundus of the bladder more into the wound. (5) Where indicated — in healthy condition of the parts and where no great traumatism has been done — the bladder-wound may be closed at once. In suturing, retract the upper and lower angles of the bladder-wound by wound- hooks, thus approximating and paralleling the margins of the vesical wound. Withdraw the silk traction-sutures as soon as the wound-hooks are in place. The margins of the bladder are then neatly and closely brought together with fine chromic gut, upon a curved needle — placed interruptedly and passing through all the coats except the mucous membrane. It is probably well to reinforce this line of suturing with a second tier of interrupted Lemberts of silk or fine gut — the roughened connective-tissue coat of the bladder, being ap- proximated in the Lembert fashion, uniting. Some surgeons use a first layer of sutures through the mucous membrane — and a second layer through the outer coats. Still others use a row of Lemberts through the outer coats only. (6) The superficial wound is now closed — except to a small extent immediately over the center of the bladder- wound — where temporary drainage is established for thirty-six or forty-eight hours, in case of leakage. Two tiers of sutures are used in the superficial wound — a buried chromic gut interrupted or con- tinuous tier, uniting the divided muscle tissue, — and a superficial silkworm- gut, or silk, placed interruptedly through the skin and fascia. The sutures opposite the site of drainage may have been placed — and simply tightened upon the withdrawal of the drain. Comment. — (1) The incision, superficial and deep, especially where done for exploration, may be less extensive than the above. (-2) If in doubt about the position of the bladder, use an exploratory syringe. (3) Avoid detaching the anterior bladder-wall from the posterior surface of the symphysis. (4) If the peritoneum be accidentally wounded, immediately close it with fine gut sutures of the Lembert type. (5) Special forms of hooked gorgets have been made to hold up the bladder while exploring or operating upon its cavity. (6) Use round needles in suturing the bladder. (7) In some cases, for drainage, or other reason, the suprapubic wound is left open — and then the edges of the bladder are sutured with chromic gut to the deeper edges of the superficial LATERAL PERINEAL CYSTOTOMY. 1099 wound. (8) Some surgeons leave a catheter in the bladdei for two or three days — to avoid overdistention and pressure upon the sutures. (9) In children, the bladder is naturally higher in the abdomen. LATERAL PERINEAL CYSTOTOMY FOR REMOVAL OF VESICAL CALCULUS. Description. — Incision of bladder through left lateral region of perineum — generally performed for the removal of calculi. The operation is sometimes less correctly called Lateral Lithotomy. It is always performed upon the left side because the manipulations upon that side are more convenient to the surgeon. The operation, as here carried out, is applicable to any purpose for which it is indicated to approach and open the bladder by this route — but it is generally done for stone, although less frequently now than formerly. Calculi of moderate, but not the largest, size may be removed by this route. The special instruments required are: — a left dorso-laterally grooved lithotomy staff; probe-pointed knife (if preferred to straight-pointed ) ; stout bistoury with cutting edge of about 5 cm. (2 inches); Clover's crutch, or some provision for maintaining the lithotomy position; wristlets and anklets (may be used). Fig. 804. — Incisions for Perineal Cystotomy: — A, Lateral perineal perineal cystotomy. cystotomy ; Median Preparation. — Rectum empty and irrigated. Perineum shaved. Rec- ognition of calculus by sound. Position. — Patient rests upon back, and, in this position, is brought down to end of table, so that buttocks come well over the edge of the table. "While steadied in this position, the special staff is passed into the bladder and given into the charge of an assistant, who, henceforth, holds it steadily and unvary- ingly in the middle line. Clover's crutch (and anklets and wristlets, if de- sired) are then adjusted, and the thighs flexed back upon the abdomen— or an assistant on each side may hold a limb in the above position, without the use of the crutch — and the patient remains in the characteristic lithotomy position throughout the operation. The surgeon sits at the end of the table, facing the patient's perineum. The assistant, standing on the left, who holds the staff in his right hand, holds up the penis and scrotum with his left. Up to the en- trance of the knife into the groove of the staff, the staff is held so that its handle iioo OPERATIONS UPON THE ABDOMINO-PELVIC REGION. is nearly parallel with the abdominal wall, so that its convexity causes the membranous urethra to round out more prominently and nearer to the peri- neum, making it more accessible to the operator. When once the knife has entered the groove and the deeper part of the incision is being made, the staff is held with its handle perpendicular and its concavity up against the pubic arch and its point well in the bladder. When all is ready for the incision, and the staff is in position, the surgeon should examine, by rectum, for staff, prostate and ischial tuberosities — and then change gloves. Landmarks. — Central tendinous point of perineum; median raphe; anus; ischial tuberosities. Incision. — From a point about 8 mm. ($ inch) to left of median raphe and just posterior to the central tendinous point of the perineum (which is 3.2 to 3.8 cm., or 1 \ to 1^ inches, anterior to the adult anus) — to a point between the ischial tuberosity and the posterior portion of the anus, and one-third nearer the Fig. 805.— Surface View of Perineum and Ischiorectal Regions: — Superficial structures are seen on right, and deep on left. A, Incision for lateral perineal cystotomy ; B, Incision for median perineal cystotomy ; C, Bulb; D, Membranous urethra ; E, Prostate gland ; F, Vas deferens, vesicula seminalis, and base of bladder ; G, Internal pudic artery ; H, Superficial perineal vessels and nerves ; I, Hemorrhoidal vessels and nerves ; J, Anus. (Modified from Gray.) tuberosity than the anus (according to others, midway between the tuberosity and the anus) — making a total incision of from 5 to 7.5 cm. (2 to 3 inches). (See Fig. 804. A, and Fig. 805, A.) Operation. — (1) With the staff in the first of the positions indicated above, the superficial incision is made in the form of a thrust — the operator steadying the perineal tissues with his left fingers — and directing the point of his knife at a right angle to the perineum, with its back uppermost, enters its point at the upper limit of the above incision — and aims directly for the groove upon the lateral aspect of the staff, but does not attempt to actually reach it, though he may do so and enter it at once. The incision is made as the knife is withdrawn, following the above line of incision — is about 7.5 cm. (3 inches) in length, and grows less deep as it passes backward and outward. The structures cut in the superficial incision are, in order — integument; superficial and deep layers of LATERAL PERINEAL CYSTOTOMY. hoi superficial fascia; transversus perinasi muscle; transverse perineal artery, veins, and nerves; lower margin of superficial layer of triangular ligament; hemor- rhoidal vessels and nerves. (2) With the staff now in the second one of the positions indicated above, the left index is introduced into the upper angle of the wound and feels for the staff — and, with this finger held in position as a guide, with the nail turned so that it enters the groove, or is directly over it, the knife is passed, with the back of the blade uppermost, along the back of the forefinger and nail straight into the groove — either the knife with which the superficial incision was made, or a special probe-pointed lithotomy knife. The point of the knife having been well engaged in the groove of the staff, the second or deep incision is now made — by pushing the knife down- ward and backward, depressing the handle as the knife goes forward to pre- vent its leaving the groove, the point kept constantly in the groove, and the Fig. 806.— Sectional View of Perineal and Pelvic Regions:— The knife is seen passing through the perineal structures, and incising the membranous urethra between the bulb, in front, and the prostate gland, behind. (Modified from Gray. ) sides of the knife parallel with the edges of the now deep wound, and inclined to the left— until the lower end of the knife passes through the prostate gland and neck of the bladder — as evidenced by a gush of urine. The deep opening into the bladder is then enlarged to the extent considered necessary by bearing gently upon the cutting end as the knife is withdrawn — and ceasing to use pres- sure, and, therefore, cutting force, as the knife reaches the more superficial planes of the wound. The structures cut in the deep incision, are, in order- membranous and prostatic parts of the urethra; superior or deep layer of tri- angular ligament; compressor urethra? muscle; anterior portion of levator ani muscle; left lateral lobe of prostate gland. The incision through the urethra and prostate will be from near the median line obliquely backward and out- ward (Fig. 806). (3) In the case of a stone, the lithotomy forceps are intro- no2 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. duced closed, along the finger in the bladder as a guide, preceded or not by the dilatation of the bladder, as indicated — and the stone is grasped and removed, aided or not by the fingers in the bladder. (4) The interior of the bladder may be then irrigated — if debris or other cause call for it. (5) A perineal lithotomy drainage-tube is inserted — and the wound left open, or closed only at its ex- treme ends by suture. Comment. — (1) Where the calculus is lodged behind an enlarged pros- tate gland, or held by the bladder-walls in some unusual position, or embed- ded, special manipulations of the lithotomy forceps is necessary. (2) Large stones may be broken by the lithoclast and removed in pieces. (3) Contra- indications to lateral perineal cystotomy for the removal of stone, are — a large stone; enlarged prostate, and deep perineum — under which circumstances a suprapubic cystotomy would be done. (4) Hemorrhage during the steps of the operation is controlled by ligature, clamping, pressure, and hot douching. (5) Avoid cutting the bulb and its artery in front — the rectum behind — and the pudic artery laterally. (6) Incision too far posteriorly will cut the ejaculatory ducts. (7) Draw the penis well up over the staff as the deep cut is made — so as to pull the bulb up. (8) Incision through the neck of the bladder should not exceed about 2 cm. (f inch). (9) Stick to the groove in the staff, after once reaching it. (10) Some difficulties, peculiar to the smallness of the parts, are encountered in lateral lithotomy upon children. MEDIAN PERINEAL CYSTOTOMY FOR REMOVAL OF VESICAL CALCULUS. Description. — Incision of bladder through median perineal region — generally performed for the removal of calculi. The operation is sometimes less correctly called Median Lithotomy. The bladder is reached by incising through the apex of the prostate gland and the membranous portion of the urethra. A less free and extensive opening is thus given than by either the suprapubic or lateral perineal cystotomy. Resorted to, especially formerly, for small calculi — which are generally now treated by litholapaxy. The special instruments required are: — a medially grooved lithotomy-staff, and a long, narrow, straight knife with a double cutting-point. The advantages of the median over the lateral cystotomy are the following: — smaller wound; less hemorrhage; quicker healing. There is better drainage than in the supra- pubic operation. The disadvantages are: — that only small calculi can be removed — and that the bulb of the corpus spongiosum and rectum are more apt to be injured. Preparation. — As for lateral perineal cystotomy. Position. — As for lateral perineal cystotomy. The medially grooved staff is held as in the second position assumed in lateral perineal cystotomy (see page 1099). Landmarks. — Central tendinous point of perineum; median raphe; anus. (See Fig. 804, B, and Fig. 805, B.) Incision. — Begins at a point about 1.3 cm. (^ inch) anterior to the anus, in the median raphe — and extends upward for 2.5 cm. (1 inch). Operation. — (1) The operator puts his left gloved index-finger into the rectum and presses it against the staff, which has already been inserted and held as just mentioned — pressing against the staff at the apex of the prostate gland — thereby steadying and recognizing the deep relations, guarding the rectum, and following the penetration of the knife. (2) The long, narrow, CVSTORRHAPHV. 1103 double-edged knife, with the main cutting-edge upward, held at a right angle to the perineum, is first thrust directly inward and made to at once strike and enter the grooved staff at the apex of the prostate, passing through the apex of the gland itself where the finger steadies it within the rectum. The knife is then made to cut upward in the groove of the staff — and, in the act of with- drawal, makes a wound in the soft parts of about 2.5 cm. (1 inch) — depressing the handle of the knife in cutting the urethra and elevating it in cutting the superficial parts, — incising the following structures: — integument; both layers of superficial fascia; anterior portion of external sphincter ani; central ten- dinous point of perineum; lower margin of triangular ligament; membranous urethra ; compressor urethra' ; apex of prostate gland. (3) As the knife is with- drawn, the index-finger is introduced into the bladder directly upon the original staff — or such an instrument as a Little's director is introduced upon the staff through the perineal wound and the original staff then removed — and the finger introduced upon the second director through the neck of the bladder, which is often entered with difficulty. The bladder cavity is thus examined through the original wound — or the opening through the neck of the bladder may be first dilated, if necessary. (4) The special object of the operation is then accomplished in the same manner as described under the lateral perineal cystotomy. (5) In completing the operation, a perineal lithotomy drainage- tube is not usually used — the wound being simply left open — protected by a thick perineal dressing. CYSTORRHAPHY. Description. — Suturing of bladder. Indications: — following cystotomy operations (the suprapubic only) ; wounds, occurring during operation or at other times; rupture of the organ; etc. The peritoneal or non-peritoneal aspects of the bladder may be involved — or both. Operation. — The wound may be con- nected with any of the conditions men- tioned above. The exposure of the wound, therefore, will be determined by the nature of the incision or injury. It will involve either the peritoneal or the non-peritoneal region of the bladder — or may involve both. The same form of suturing is used, whether peritoneal or non-peritoneal sur- face be the site of operation. Several methods of approximating the edges are in use: — (a) The margins of the bladder- wound are brought together and carefully adjusted by means of a single tier of fine chromic gut, interrupted or continuous. carried upon a curved needle, and passing through all the coats except the mucous, (b) The mucous membrane may be first united by interrupted or continuous gut suture — followed by the approximation of the outer coats by the stitch just described under "a," either fine gut or silk being used, (c) By interrupted chromic gut Lembert sutures passing through the outer coats only, extending slightly Fig. S07. — Cystorrhaphy : — First tier of sutures passes through outei coats and involves edges of bladder-wound (shown in upper sutures). Second tier consists of Lemberts through outer coats (shown in lower sutures-— which are here also seen burying in the first tier). no4 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. beyond the wound at both ends. In the case of the peritoneal surface of the bladder, the serosae adhere and unite. In the case of the non-peritoneal surface of the bladder, the raw connective tissue covering the surface unites, (d) By a combination of method "a" as a first tier — followed by method "c," as a second tier. (Fig. 807.) Comment. — (1) Method "a" is probably the best — or method "b." (2) Gut should always be used in sutures passing through the mucous membrane. (3) In no form of suturing should the mucous membrane be included in a suture which, at the same time, will pass through the other coats. (4) If the circumstances of the wound and the technic of closure be such as to make the operator feel confident of result, the external wound may be closed as usual. In all cases of doubt — and the safest in all cases — the external wound may be closed in greater part — and temporary drainage be carried down to the bladder wound. (5) The bladder may be drained by the catheter for two or three days — to avoid distention of the organ and strain upon the sutures. LITHOTRITY. Description. — Crushing of vesical calculi at one or several intermittent sittings (from seven or eight, to three or four days apart) without general anesthesia — the debris of the stone being left to be evacuated by nature's efforts. The instrument used is an ordinary lithotrite — and the manner of using it is the same as in Litholapaxy, except no evacuator follows its use. The patient rests in bed, or may even remain up, while the disturbance of each sitting is passing by. The operation is now almost obsolete. LITHOLAPAXY. Description. — Crushing of vesical calculi and recrushing of the resulting fragments, followed by removal of the debris by irrigation, at one sitting, under general anesthesia. The crushing and removing are accomplished by special instruments — the lithotrite and evacuator. Preparation. — Presence of stone verified by sound; bowels emptied; blad- der and urethra in an aseptic condition and bladder moderately distended with a sterile fluid (about 4 or 5 ounces). Position. — Patient supine, with buttocks well raised by support, to cause the gravitation of the stone to the fundus of the bladder — resting near the right edge of the table, with thighs separated. Surgeon stands upon the patient's right. Assistant opposite. Operation. — (1) The lithotrite, with closed blades, is introduced into the bladder just as a sound would be — with the modification required by the straighter instrument more abruptly curved near its end — that is, when the bulbous portion of the urethra is reached, the handle of the lithotrite, instead of being at once depressed (which would cause the point of the instrument to hook against the roof of the bulbous urethra in front of the triangular ligament), is held upright, so as to allow its more sharply curved point to gravitate be- neath the triangular ligament and glide into the membranous urethra and reach the prostate — and then only is the handle depressed, and slightly twisted from side to side, causing the tip to ride up through the prostatic urethra into the bladder — and glide along the trigone to the posterior wall of the organ. (2) Slow, methodical movement in the opening and closing of the blades, with a LITHOLAPAXY. 1105 pause between each movement — together with a systematic search of the blad- der cavity, should be the method adopted. Hurried movements cause bladder- currents, which generally keep the stone moving and make the grasping of the calculus difficult. Irregular, random movements in directing the grasping blades of the instrument are unsurgical and generally futile. The instrument mav encounter the stone immediately — and, if so, its position may be indicated and the blades opened for its seizure. If not, as the instrument rests quietly in the middle line of the base of the bladder, and steadily held in the one position, its blades are 'separated (by withdrawal of the male blade) — then followed by a few seconds' cessation of all movements (to allow stone to gravitate into the grasp of the instrument) — succeeded by a gentle screwing back of the male blade (the instrument being kept steadily, immovably in one position) — when Fig.808.— Litholapaxv IN thk Male: — The lithotrite in position. the stone will often be felt in the grasp of the separated blades. "Open — pause — close" is the formula of movement. If unsuccessful, open again — ■ turn blades to right side, through an angle of 45 degrees ("right oblique"), still keeping the instrument in the median line — close. . Or turn it, from a vertical plane, through an angle of 45 degrees to the left ("left oblique") — open — close. Thus the instrument may pass from the vertical to a right or left oblique, or a right or left horizontal. It is better to open the blades before turning — as the stone may be pushed away by an opening blade. Depress the handle, keeping in the middle line or turning laterally — thus examining the anterior wall and sides of the bladder. Reverse the direction of the blades, so that they point downward, especially where the prostate is enlarged — and examine the floor of the bladder and behind the prostate gland — assuming the positions of reversed vertical, reversed right and left horizontal, and reversed right and left oblique. no6 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. Thus the entire cavity of the bladder is systematically searched. (3) Having grasped a calculus, the male blade is steadily and slowly screwed down into the female blade — until the stone is felt to break into two or more pieces. After pausing a moment, the blades are opened, kept quietly apart a few seconds, then closed — when probably several of the. fragments will be caught and further crushed. This is repeated until the debris are considered to be fine enough to come through the tube of the evacuator. The blades of the lithotrite are then closely approximated while in the bladder and the instrument is withdrawn. (Fig. 808.) (4) The tube of the evacuator is then introduced into the bladder Fig. 809.— Litholapaxy in the Male :—The evacuator in position. and the urine or other fluid of the bladder is in part withdrawn. The opening of the evacuator lies in the lowest part of the fundus of the bladder — so as to catch the gravitating stones. The bulb of the evacuator is then filled with warm boric acid solution and attached to the evacuator-tube. While the left hand steadies the rigid tube in the bladder, the right hand compresses the bulb and throws a part of its contents into the bladder (about 2 or 3 ounces). On relaxing the bulb, as much fluid as was thrown in is drawn out again (so that the original amount always remains in), and, with it, more or less of the debris of stone are brought out in the outflowing current. Wait a few moments and LITHOLAPAXV 1107 then repeat the evacuating process — until all debris seem to have come away. If too large a fragment remains for evacuation, as determined by its ineffectual clicking against the evacuator, the lithotrite must be again introduced, the stone recrushed, and the evacuator reintroduced and the debris further re- moved. Removal of all debris is generally determined by the absence of clicking — which is often heard at a distance, but is generally to be detected by the ear placed near the bladder — and by the coming away of perfectly clear and clean water. The bladder may be finally irrigated — and the evacuator withdrawn (Fig. 809), (5) The patient is generally kept quietly in bed for a few days. Comment. — (1) Avoid grasping the mucous membrane of the bladder in the instrument, the construction of which usually makes it impossible or diffi- Fig. 810— Litholapaxy in the Female :— The lithotrite in position. cult. At any rate, before finally forcibly closing the blades, always shift the blades, so as to feel that they are free and have not included the bladder-wall. (2) In evacuating debris, the bladder should not be allowed to get empty of fluid — as the walls of the organ would have a tendency to be drawn into the evacuator by suction. (3) If air enter the bladder, depress the handle of the evacuator so as to raise its tip above the level of the bladder fluid, and suck the air out with the bulb. (4) If the instrument clogs and cannot, by persistent though gentle effort, be freed, it must be exposed and cleared through a supra- pubic cystotomy. (5) Only a lithotrite with fenestrated blade should be used, thus lessening the chances of clogging. (6) It may be necessary to slightly incise the urinary meatus in order to get the beak of the instrument to enter the urethra. (7) Instruments of special size, as well as particular care, are neces- no8 OPERATIONS UPON THE ABDOMINO-PELVIC REGION. sary in operating upon children. (8) Litholapaxy in women is much more easily performed than in men, because of the shorter, larger urethra (Fig. 810). (9) A simple instrument has been devised for combined crushing and evacua- tion bv Chismore. VESICAL DRAINAGE. Description. — By vesical drainage is meant the drainage of the bladder contents through a natural or an artificial channel. While the bladder is being drained for consecutive days, daily irrigations with aseptic or mildly antiseptic solutions may be used. Where the bladder cavity is made directly continuous with the suprapubic or perineal regions, suprapubic or perineal cystotomy may be said to be done. Bladder drainage may be urethral, perineal, or supra- pubic. Urethral Bladder Drainage. — Consists in drainage by a soft catheter passed through the urethra into the bladder. Indicated for only brief drainage — not over three or four days, the usual limit of bladder toleration. A soft catheter is introduced until its eye has just entered the bladder, which is as- certained by withdrawing the catheter and retaining it in the position in which it was just before cessation of flow. Various devices are used for holding the catheter in the urethra. A 1 cm. (or h inch) widtli of rubber-plaster may be passed three-fourths of the way around the penis (to allow of expansion of the organ) just behind the corona, and to this the tube may be tied by silk suture passed with-a needle through the outer wall of the tube and upper border of the plaster band. Perineal Bladder Drainage. — Consists in drainage of the bladder through the perineum by means of a tube, or through the bare wound resulting from perineal cystotomy. Indicated, chiefly, in operations upon the bladder by the perineal route, and in cases of impervious urethra. Where the drainage is the primary consideration (as in aggravated cystitis and in other conditions of prostate, bladder or urethra) tire membranous urethra is opened by median perineal incision, just as in external urethrotomy (page 1123) — the catheter is carried through the prostatic urethra into the bladder, until its eye rests just within the bladder-cavity — and is then fastened to a T-bandage by a silk suture carried on a needle through the outer wall of the catheter. A long rubber tube is then connected with the catheter and carried to a bottle at the foot of, or under, the bed, and drains by siphonage. Suprapubic Bladder Drainage. — Consists in drainage of the bladder through a suprapubic cystotomy wound. Indicated in some operations upon the bladder, aggravated cystitis, etc. The drainage may be accomplished by simple siphonage by catheter — or by various devices, some mechanical, and others by methods of suturing, (a) By Siphonage Tube ordinarily Sutured into the Bladder: — Following the suprapubic cystotomy, a pliable rubber tube, with large eye, is introduced through the bladder-wound, which has been partly closed from both ends — and so adjusted that its lower end barely reaches the lowest part of the bladder-cavity but does not press upon it. A safety-pin passed through its outer wall, at the skin level, rests transversely across the lips of the partially sutured wound and maintains the fixed depth of the tube. A large gauze-pad, with central perforation, is then placed around the tube, and a second safety-pin passed in just above the second pad to steady the tube. The free end is connected with a rubber tube, emptying into some reservoir for drainage. Where much hemorrhage is expected, or, for other reason, irriga- tion is needed, two parallel tubes may be used — one serving the above purpose, PARTIAL CYSTECTOMY 1 109 and the other being used for throwing irrigating fluid into the bladder, which then siphons out by the first tube, (b) By Siphonage through a Tube in- troduced by Gibson's Method: — This is an application of the Kader Gastros- tomy method to the bladder (see page 964). The bladder -wall is exposed as in the suprapubic cystotomy — an opening is made in the middle line of the bladder sufficiently large to admit the tube snugly — in the median line, in front and be- hind the tube, a Lembert suture of chromic gut is placed so as to closely embrace the tube. These sutures form the first tier. Then, a second tier of four sutures, two in front and two behind, is applied. (If neces- sary, a third tier might be used.) The tube is thus buried in — in a valve-like man- ner — so that when the tube is removed, the opening is closed by the tendency of the folds — and can be again readily re-intro- duced. A long tube is attached to this for siphonage and conducted to a reservoir, as in the other methods (Fig. 811). PARTIAL CYSTECTOMY. Description. — Removal of a limited por- tion of the bladder. Generally performed for the removal of a tumor involving a part of the bladder-wall. The site of the tumor may be extraperitoneal or intraperitoneal — or both. Operation. — The general features of the operation may be gotten from the description of the total removal of the bladder. The steps of the partial removal will depend upon the site of the growth demand- ing partial cystectomy. (1) When the tumor is upon the upper part of the bladder and the peritoneum can be pushed back, the involved portion of the bladder-wall is excised with scissors — and the lips of the wound then brought together and sutured (see Cystorrhaphy). (2) When the tumor is similarly placed but its removal involves the opening of the peritoneal cavity — the peritoneal wound is closed by suture and the bladder-wound dealt with as just described. (3) If the tumor be above the ureters, upon the posterior aspect of the bladder, it may be exposed through a suprapubic cystotomy and removed from within the bladder, followed by the approximation and suturing of the edges of the wound left and the establishment of drainage. (4) When the area involved lies upon the anterior bladder-wall, behind the symphysis, partial resection of the symphysis, or symphysiotomy, may be necessary. (5) If the involvement be at the mouth of a ureter, the site should be ex- cised — the healthy ureter, after excision of its vesical end, should be implanted into a neighboring part of the bladder — and the wound made by the original excision closed. (6) Where the base of the bladder is involved and the open- ings of the ureters are healthy, these should be excised, en masse, and trans- planted into the rectum — and the bladder removed. Following all partial ex- cisions, the remainder of the bladder-walls should be brought together by Fig. 8 1 1. — Suprapubic Bladder- drainage (Gibson's Method) : — The first tier of sutures are shown tied. The second tier are placed ready to be tied and further bury in the tube. The remaining structures are same as given in Fig. 519. I no OPERATIONS UPON THE ABDOMTNO-PELVIC REGION. suture — temporary drainage established down to the sutured bladder — and a catheter introduced into the bladder for drainage, and to prevent overdisten- tion and tension upon the sutures. TOTAL CYSTECTOMY BY SUPRAPUBIC MEDIAN VERTICAL AND TRANSVERSE INCISIONS. Description. — Complete excision of the bladder, followed by implantation of the ureters. Indicated in malignant disease limited to the bladder. The operation as performed by Tuffier and Dujarier will be here described — con- sisting in an extraperitoneal abdominal excision of the bladder, followed by an implantation of the ureters in the sigmoid colon. Preparation. — Bowels emptied; pubes shaved; bladder distended with aseptic fluid at an early stage of the operation. Position. — Patient in the Trendelenburg position, near the edge of the table. Surgeon on patient's left. Assistant opposite. Landmarks. — Median line; symphysis pubis; inguinal canals. Incision. — _L-shaped — the vertical incision is made in the median line, beginning at the symphysis pubis and passing upward for 10 to 12.5 cm. (4 to 5 inches). The transverse incision unites the inguinal canals, along the supra- pubic border, to the vertical incision. Operation. — (1) Incise vertically carefully in the median line, especially over the position of the peritoneum. Expose the bladder and the reflection of peritoneum — pushing the latter upward well off of the bladder. Clamp and tie all bleeding vessels. (2) Make the horizontal incision from one inguinal canal to the opposite, just above the border of the pubic bone and Poupart's ligament. Clamp or tie bleeding vessels in this line of incision. Dissect up the rectangular flaps thus outlined — and retract them upward and outward on both sides — thus giving free access to the bladder. (3) Separate the anterior aspect of the bladder from the pubis, down to its neck, by blunt dissection — ex- posing and isolating its neck — moderate traction being exercised upon the anterior and lateral walls by vulsella. (4) The neck of the bladder is clamped and divided above the clamps. (5) The peritoneum is carefully peeled off of the superior, posterior, and lateral aspects of the bladder, avoiding making any opening into the peritoneal cavity. (6) The inferior vesical arteries and ureters are secured close to the bladder, in curved clamps, and divided en masse. (7) The base of the bladder is separated from its remaining connections and the viscus removed. (8) The urethral and the ureteral openings are cau- terized. (9) The vesical arteries are tied and the clamps relaxed. (10) The ureters are implanted within the sigmoid colon, (n) The deep wound is packed with gauze — drainage being brought out just over the symphysis pubis — all of the transverse and most of the vertical incisions being sutured. Comment. — (1) Avoid opening the peritoneum if possible — and, if opened, suture at once — or, if the opening be too large, pack with gauze. (2) The authors, Tufher and Dujarier, made the uretero-sigmoidostomy with Chalot's buttons. Fowler's method (page 870) may also be used. CHAPTER VI. OPERATIONS UPON THE MALE GENITAL ORGANS. I. THE PENIS. SURGICAL ANATOMY. Description. — Consists of glans, body, and root. Body is composed of two corpora cavernosa and the corpus spongiosum. Corpora Cavernosa. — Connected, side by side, in the median line, for their anterior three-fourths — an imperfect fibrous septum intervening. Sep- arated, posteriorly, to form the crura, or roots. The crura are attached by their blunt, fibrous, posterior ends to the antero-internal aspects of the two rami of the pubes and ischia, above the tuberosities. The anterior ends of the cavernosa are received into the fossa formed by the base of the glans penis, or head. The superior median groove of the corpora cavernosa lodges the dorsal vein of the penis. The inferior median groove lodges the corpus spongiosum. Corpus Spongiosum. — Encloses the urethra, which passes into the bulb nearer its superior aspect. It is received into the inferior median groove of the corpora cavernosa. It ends, anteriorly, in the glans penis, or head of the organ. It ends, posteriorly, in the bulb of the corpus spongiosum — between the diverging crura of the corpora cavernosa, and between the deep layer of the superficial fascia and the superficial layer of the deep fascia — being covered by a fibrous process from the anterior layer of the deep perineal fascia and sur- rounded by the accelerator urinae muscle. Suspensory Ligament of the Penis. — A fibrous band passing from the front of the symphysis pubis to the adjacent portion of the penis, merging with its fascial sheath. Muscles of Penis. — Erector penis; accelerator urina?; compressor ure- thra?; transversus perinrei. Arteries. — (a) Of the corpora cavernosa: — arteries of the corpora caver- nosa; dorsal arteries of the penis. All from internal pudic. (b) Of the corpus spongiosum: — artery of the bulb, from internal pudic. Veins. — Some of the veins empty into the dorsal vein, which ends in the prostatic plexus. Other veins empty directly into the prostatic plexus, pudic plexus, pudic veins, and obturator veins. Others empty into the cutaneous veins of the penis and scrotum. Lymphatics. — The superficial empty into the inguinal glands. The deep empty into the pelvic glands. Nerves. — From the dorsal and superficial perineal branches of the pudic and from the hypogastric plexus of the sympathetic. INSTRUMENTS. Scalpels; narrow, straight bistoury; scissors; retractors; tenacula; dissecting and toothed forceps; artery-clamp forceps; blunt dissector; periosteal elevator; ii 12 OPERATIONS UPON THE MALE GENITAL ORGANS. rubber tourniquet (rubber catheter); needles, straight and curved; needle- holder; ligatures and sutures, silk and gut. CIRCUMCISION. Description. — Removal of greater portion of redundant or contracted pre- puce. The amount of foreskin to be removed should be so calculated that two objects be accomplished: — first, that enough foreskin be removed to insure easy exposure of the entire glans penis, even during erection; — secondly, that enough foreskin be left to insure constant covering of the prominent corona glandis during relaxation of the organ, thereby securing retention of greater sensitiveness of the papillae than when the corona is worn constantly bare, and, therefore, dry. Many me- chanical contrivances have been devised for aiding in circumcision — but the oper- ation can generally be more satisfactorily done with scis- sors alone — and, by this means, greater accuracy is usually obtained in provid- ing the exact amount of pre- puce which it is well to leave. Preparation. — A con- strictor, usually a rubber band, is applied around the base of the penis. Position. — Patient su- pine, near the left edge of table. Surgeon on patient's right. Landmarks. — Position of sulcus at junction of head and body of organ. Operation. — (i) As there will be a much greater tendency for the skin-aspect of the prepuce to retract more than for the mucous-membrane-aspect, it is well, in all methods of cir- cumcision, as a preliminary step to the actual division of preputial tissue, to take the skin and mucous surfaces of the foreskin be- tween the left index and thumb (or between the blades of a pair of toothed forceps) and so dispose the parts that the mucous membrane is drawn slightly forward and the skin pushed slightly backward— so that there will be somewhat less disparity when the section is made. (2) Taking the foreskin in the left fingers, the surgeon inserts the lower blade of a pair of straight scissors beneath the upper aspect of the foreskin, between it and the dorsum of the glans— and Fig. 812. — Circumcision :— I. Scissor-blade between glans and prepuce, cutting foreskin in median dorsal line up to level of its removal. CIRCUMCISION. 1113 cuts through the prepuce with one stroke, up to the height upon the dorsum which it has been calculated will leave sufficient prepuce to cover the corona during relaxation of the organ (Fig. 812). (3) The scissors are then with- drawn from the vertical incision — and the position of the hands then changes. The left fingers grasp the left flap, the one nearer the surgeon, and, holding it slightly away from the glans, the scissors are made to cut through one-half of the circumference of the organ — the guide for the cut being that it should pass about parallel with the corona glandis, crossing the median line upon the under aspect of the prepuce just in front of (distal to) the fraenum (Fig. 813). (4) The right flap is now dealt with in the same manner — completing the encircling of the organ. The incision will, therefore, slope ob- liquely from above down- ward and from behind for- ward. (5) Four primary chromic gut sutures are then applied in the mid- points — above, below and laterally — closely approxi- mating the margin of mu- cous membrane to the margin of skin. These are followed by four or eight secondary sutures evenly distributed between the primary ones (Fig. 814). (6) The dressing is so ap- plied as to leave an opening for urination. Comment. — (1) The usual error is to remove too much foreskin. A pre- puce, appearing to be suffi- cient after the completing of the operation, often gets entirely and permanently behind the corona in sub- sequent retraction — at the expense of considerable loss of sensitiveness of the papillae. (2) If any ques- tion arise, during opera- tion, as to the width of the opening being too narrow, the vertical incision may be extended upward ad- ditionally high — the lateral incisions then being sloped downward so as to come just in front of the fraenum. (3) The redundancy of the mucous mem- brane is apt to be much greater than that of the skin. (4) In using all forms of circumcision-clamps too much or too little prepuce is apt to be cut away. (5) If the penis is to have a preliminary constrictor applied, which would tend to draw back the foreskin into a somewhat unnatural position, greater accuracy in measurements may be obtained by first (before applying toumi- si.3- -Circumcision :— II. Division of the entire thick- ness of the prepuce transversely, at the upper limit of the median incision. While the entire redundant portion of pre- puce is being drawn downward, the left thumb and index so manipulate the parts that more of the mucous membrane than of the skin is removed. iii4 OPERATIONS UPON THE MALE GENITAL ORGANS. quet) marking the site at which the removal is desired with a nitrate of silver stain. (6) Sometimes one or more vessels have to be twisted or gut-ligatured. (7) Do not leave too great an amount of tissue near the fra^num. (8) It may be necessary, before suturing, to trim the edges somewhat with scissors, especially of the mucous membrane. (9) Where there is firm adhesion between prepuce and glans, especially in children, the pre- puce must be carefully peeled off — by means of the fingers, aided by toothed forceps and the flat portion of a probe. (io) Often, in adherent prepuces, no in- strument can be slipped up between the prepuce and glans — and the opening of the prepuce is too small to allow of re- tracting the membrane far backward — in which cases the redundant portion must be put upon tension and cut off trans- versely, after which the separation of ad- hesions may be more easily accomplished. (ii) In operating in adherent cases, re- adhesion is prevented by removing an excess of mucous membrane and leaving a slight redundancy of skin. In com- pleting the operation, the skin is sutured to the very short mucous membrane — and, being quite long, is doubled upon itself, and the part in contact with the glans eventually becomes of the nature, somewhat, of mucous membrane. Fig. 814.— Circumcision : — III. Plac- ing of interrupted sutures — which approxi- mate the free edge of the skin (A) to the free edge of the mucous membrane (B). PARTIAL AMPUTATION OF PENIS BY FLAP METHOD. Description. — Consists in the amputation of more or less of the free por- tion of the penis by a long anterior and short posterior flap — the freed urethra being brought through and sutured into the anterior flap. The stump is thus covered by two bluntly rectangular flaps. Preparation. — A rubber tourniquet (usually a rubber catheter) is placed around the base of the organ. A short piece of soft catheter is passed into the urethra, down to the tourniquet, to emphasize the furrow between the corpora cavernosa and corpus spongiosum — or may be passed just before the trans- fixion. Position. — Patient supine, at edge of table. Surgeon on patient's right. Assistant opposite. Landmarks. — Line of section. Furrow between cavernosa and spongio- Incision. — The anterior flap will have a width of one-half the circum- ference of the penis at the line of division, and a length of about one diameter of the penis. The posterior flap will have the same width of base, and a length of about a half diameter of the penis. Operation. — (1) Having decided upon the line of section of the penis, an PARTIAL AMPUTATION OF PENIS. i"5 anterior or dorsal flap, of skin and connective tissue, is cut, having a width of half the circumference of the organ at the line of division, and a length about equal to the diameter of the organ (Fig. 815). This is raised up by dissection Fig. 815.— Partial Amputation of Penis by Flap Method:— I. Outlining of flaps; A, Long anterior flap ; B, Short posterior flap. Fig 816 -Partial Amputation of Penis by Flap Method :— II. Transverse section of stump ; A Lone anterior flap turned back, showing slit for urethra ; B. Short posterior flap; C, Dorsal vein arid arteries ; D. Corpora cavernosa and vessels; E, Corpus spongiosum ; F, Urethra dissected out, and ready to be sutured into slit of anterior flap. and turned back— the dorsal arteries being tied with gut. (2) On a level with the base of the anterior flap, the divisional groove between the corpora caver- nosa and corpus spongiosum is recognized, aided by the soft catheter in the OPERATIONS UPON THE WALE GENITAL ORGANS. urethra. A narrow-bladed knife, held flatwise, with back of blade backward, is thrust horizontally through the organ, between the cavernosa and spongio- sum — and cuts its way through, passing at first directly forward in the groove and then rounding abruptly downward — thus forming an inferior flap of about one-half the diameter of the penis in length, composed of corpus spongiosum, with its included urethra and skin. (3) The urethra is now dissected out from the small inferior flap, back to a line with the base of the flaps. (4) The cor- pora cavernosa are divided transversely from within outward and upward, on a line with the highest point of transfixion (base of flaps) (Fig. 816). The arteries of the corpora cavernosa are tied with gut, or twisted. (5) Make a vertical incision in the center of the long anterior flap, opposite the urethra and just large enough to receive the urethra. The urethra is then drawn through this opening. If the urethra be much too long, the redundancy is cut off, leaving a protru- sion of about 7 mm. (\ inch) — which is slightly slit above and below— and sutured into the margins of the opening in the ante- rior flap. (6) The two flaps are then united by suture, both where their free ends meet — and where in apposition laterally (Fig. 817). (7) A dressing is applied, leaving room for urination — at the same time exercising pressure of the flap against the stump of the penis. Comment. — The arteries of the corpus spongiosum and of the septa may need ligating. Fig. 817. — Partial Amputation of Penis by Flap Method: — III. The parts sutured; A, Suture-line of flaps; B, Urethra sutured into slit in long anterior flap. TOTAL AMPUTATION OF THE PENIS. Description. — In the total amputation the entire organ is removed, ex- cept the posterior portion of the corpus spongiosum — the proximal portion of the urethra being made to open in the perineum. Preparation. — Shave pubis and perineal region. Position. — Patient supine, at end of table, in lithotomy position. Surgeon between limbs. Assistant to surgeon's right. Landmarks. — Subpubic arch; scrotal and perineal raphe. Incision. — The incision circularly surrounds the base of the organ, at its junction with the abdominal wall — and is then continued down the median line of the scrotum and into and along the median line of the perineum. Operation.— (1) Incise the scrotal tissues exactly in the median line, from che under surface of the penis, at its junction with the scrotum, to and into the perineum. Separate the two scrotal sacs by blunt dissection, until the corpus spongiosum is reached. All bleeding vessels are clamped and ligated as en- TOTAL AMPUTATION OF THE PENIS. 1117 countered. If a metallic sound be previously introduced through the urethra, the incision and subsequent dissection are made easier (Fig. 818). (2) If a sound have not been previously introduced, a large-sized metallic sound is now- passed through the urethra up to the triangular ligament, to aid in defining the corpus spongiosum. The corpus spongiosum is then dissected out until free in its entire circumference. The sound is then withdrawn — and the spongy urethra is divided well in front of the triangular ligament — and the proximal end of the spongy urethra is then freed back to the triangular ligament. (3) Carry the upper end of the vertical incision circularly around the base of the Fig. 818.— Total Amputation ok Penis :— A, A, The two halves of scrotum split and retracted outward ; B, Penis drawn downward and to one side, thus aiding separation of its crura ; C, Corpora cavernosa (crura); D, Ramus of ischium; E, Periosteal elevator detaching left crus of penis from ascending ramus of ischium by blunt dissection ; F, Dorsal vessels of penis divided and ligated. The suspensory ligament of penis and concavity of pubic arch are seen just below; G, Distal end of corpus spongiosum and urethra ; H, Proximal end of urethra dissected out and ready to be sutured into perineum. penis. Divide the suspensory ligament — and expose the corpora cavernosa. (4) The corpora cavernosa are to be followed down to their attachment to the rami of the pubes and ischia — and freed from their attachment chiefly bv blunt, but partly by sharp, dissection. The dorsal arteries are tied after cutting through the suspensory ligament, and the arteries of the corpora cavernosa generally require ligation when the cavernosa are freed from the bone. Bleed- ing from the vesico-prostatic plexus of veins is often considerable, and is to be controlled by pressure and hot water. (5) The proximal end of the urethra is now turned downward and sutured into the perineum — the mucous membrane of the former being sutured to the skin of the lips of the perineal wound. If necessary, the urethra may be split so as to enable its lips to be more readily sutured into the perineal wound. (6) The remaining perineal and all the iii8 OPERATIONS UPON THE MALE GENITAL ORGANS. scrotal portions of the wound and the circular area formerly occupied by the base of the penis, at the peno-abdominal junction, are all sutured in one straight antero-posterior line with continuous silk suture. (Figs. 819 and 820.) Fig.819.— Total Amputation of Penis : — Scrotum drawn up on to abdomen ; A, suture-line uniting scrotal sacs ; B, proximal end of urethra sutured into perineum. Fig. 820. — Same; Scrotum in normal position (patient on back); C, suture-line uniting scrotal sacs ; D, interrupted sutures about to be tied, converting circular incision around base of penis into a linear cicatrix continuous with scrotal suture-line. Comment. — (1) The urethra should be so sutured into the perineum that in the act of urination, in a sitting posture, the urine will not wet the scrotum. (2) The early passage of the metallic sound greatly aids in the splitting of the scrotum. II. THE URETHRA. SURGICAL ANATOMY. (A) Male Urethra. Description. — Extends from bladder-opening to external urinary meatus — from 20.5 to 23 cm. in length (8 to 9 inches). It consists of muscular, erec- tile, and mucous tissue. It is divided into prostatic, membranous, and spongy portions. Prostatic Portion. — About 3.2 cm. (ij inches) long. Passes through the prostatic gland, near its upper aspect, from base to apex. The following ob- jects are upon the floor of the prostatic urethra, from behind forward; — (a) verumontanum, an elevation of mucous membrane in the middle line; — (b) prostatic sinuses, one upon each side of the verumontanum, with the orifices THE URETHRA— GENERAL SURGICAL CONSIDERATIONS. 1119 of the prostatic ducts opening into them;— (c) sinus pocularis, a cul-de-sac lying in front of verumontanum and passing backward for about 1.3 cm. (J inch) into the substance of the prostate gland, beneath the central lobe;— (d) openings of the two ejaculatory ducts into the orifice of the sinus pocularis. Membranous Portion.— Portion of urethra between the two layers of the triangular ligament — about 2 cm. (f inch) long upon its anterior, and 1.3 cm. (| inch) long upon its posterior aspect. Extends between apex of pros- tate gland and posterior aspect of bulb of corpus spongiosum. Its anterior surface is about 2.5 cm. (1 inch) below the pubic arch — the dorsal vessels and nerves and some muscular fibers intervening. It pierces both layers of the triangular ligament, receiving an investment from each. It is sur- rounded by the compressor urethral muscle. Spongy Portion.— About 15.5 cm. (6 inches) in length. Extends entire length of corpus spongiosum, from bulb to external meatus. The portion within the bulb is sometimes called the "bulbous urethra." The ducts of Cowper's glands open upon the floor of the bulbous portion. The glands of Littre open upon the mucous membrane of the penis, especially upon the floor of the spongy portion. One of these, the lacuna magna, opens upon the roof of the fossa' navicularis, about 2.5 cm. (1 inch) from the external urinary meatus. The fossa navicularis is situated within the glans penis. Narrowest Portions of Urethra.— At external meatus; in the mem- branous portion; at the neck of the bladder. Vessels and Nerves. — See under " Penis." (B) Female Urethra. Description.— About 3.2 to 3.8 cm. (i| to i| inches) in length— from neck of bladder to external urinary meatus. Its diameter is about 6 mm. (\ inch), undilated. It pierces the triangular ligament and is directed upward and backward, with concavity slightly forward. It is surrounded anteriorly and laterally by a plexus of veins (plexus of Santorini). It lies under the symphysis pubis — its posterior wall being closely connected with the anterior wall of the vagina. The bladder-opening lies about 2 cm. (f inch) behind the center of the symphysis pubis. The external urinary meatus is a vertical slit lying about 2.5 cm. (1 inch) posterior to the clitoris, just anterior to the entrance of the vagina, and inferior to the lower edge of the symphysis pubis. The female urethra is composed of muscular, erectile, and mucous tissue — and is embraced by the compressor urethrae muscle, between the layers of the triangular ligament. Vessels and Nerves. — From the same source as those of the vagina (q. v.). SURFACE FORM AND LANDMARKS. The base of the triangular ligament can be felt through a thin perineum. The membranous urethra pierces the triangular ligament about 2 cm. (| inch) below the subpubic ligament — and about 2 cm. (f inch) in front of the central tendinous point of the perineum. GENERAL SURGICAL CONSIDERATIONS. Stricture never occurs in the prostatic urethra — and is very rare in the membranous — hence one may generally count upon finding a patulous urethra H20 OPERATIONS UPON THE MALE GENITAL ORGANS. after cutting down upon that portion emerging from the apex of the prostate gland. For other general considerations, see Urethrotomy. INSTRUMENTS. Scalpels; bistouries; scissors; forceps, dissecting, toothed, and artery- clamp; tenacula; grooved director; sounds; catheters; filiforms; tunneled sounds; grooved and tunneled guides; probe-pointed scalpels; sponge-holders; retractors; thread-retractors; bulbous bougies; dilating bougies; prostatic catheters; medially and laterally grooved staffs; urethrotomes; Clover's crutch, wristlets and anklets; gorget; urethral dilator; dilating urethrotome; penis syringe; female catheters; needles, straight and curved; needle-holders; ligatures and sutures, of silk and gut; silkworm-gut; drainage-tubing; gauze. INTRODUCTION OF SOUNDS AND CATHETERS. See Introduction of Sounds and Catheters into the Bladder, page 1094. MEATOTOMY. Description. — Incision of external urinary meatus. Indicated in con- tracted meatus, especially in cases where it is necessary to pass a full-sized instrument. Preparation — Position. — As for Internal Urethrotomy. Operation. — The penis is taken in the fingers of the operator's left hand — the lips of the meatus are parted by the index and thumb — a probe-pointed bistoury is passed just within the canal, its cutting-edge downward — and an incision made, as far as necessary, downward along the median line of the floor of the meatus, increasing the size of the meatus to the desired dimen- sion. The lips of the wound, until healed, must be kept apart with a strip of gauze. Comment.— The operation may be done by a meatome, a special instru- ment, which is inserted closed and the meatus is cut in the act of opening the instrument. URETHROTOMY IN GENERAL. Urethrotomy consists in the incision of the urethra, generally in its long axis. Varieties of Urethrotomy. — Internal Urethrotomy and External Urethrot- omy. Internal Urethrotomy: — division of a strictured urethra from within the canal, by means of a special instrument, a urethrotome, introduced into the canal. Where simultaneous dilatation is indicated, a dilating urethrotome is used. Internal urethrotomy is usually confined to the penile portion of the organ, and the incision is generally made into the roof of the urethra. External Urethrotomy: — division of a strictured urethra from without inward. External Urethrotomy is indicated — (a) In impermeable strictures anywhere and everywhere in the canal — (b) All strictures, whether permeable or not, at or posterior to the subpubic urethra. Several grades of permeability of the urethra may exist — calling for ex- INTERNAL URETHROTOMY. II2I ternal urethrotomies of several grades of severity. These grades of stricture, and the measures for their relief, are, in order :— (I) Grooved staff can be passed entirely through the strictured urethra, — and, upon this, the stricture is divided — constituting External Urethrotomy by Syme's Method. (2) Grooved staff cannot be passed, but a filiform guide can be introduced through the stricture into the bladder, and, over this guide, Gouley's grooved tunneled sound can be carried down to the stricture (but not through it), — and, upon this, the upper end of the stricture is exposed, and the filiform followed into the bladder and the stricture thus divided — constituting External Urethrotomy by Gouley's Method. (3) Grooved staff cannot be passed through stricture, nor can filiform be passed through, but a grooved staff can be passed down to the stricture (not through it), — and, upon this, the urethra is opened just in front of the stricture, a fine grooved director passed, and the stricture divided upon this — constituting External Urethrotomy by Wheelhouse's Method. (4) Neither grooved staff nor filiform can be passed through the stricture, the urethra being, practically, impassable to instruments of all kinds — therefore no attempt is made to use any form of guide — the urethra is opened, by the sense of touch and relations, posterior to the stricture and immediately anterior to the prostate — constituting External Perineal Ure- throtomy without a guide (Perineal Section, or Cock's Operation). The bladder is kept partly full in all urethrotomy operations, in order that entrance to it may be recognized by the escape of fluid. For the anatomy involved in the perineal operations, see the description of Median Perineal Cystotomy. INTERNAL URETHROTOMY BY DILATING URETHROTOME. Description. — Division of a strictured urethra from within the urethra, by means of a special instrument, a dilating urethrotome, introduced into the canal. If simultaneous dilatation be not indicated, a plain urethrotome may be used. Internal urethrotomy is generally confined to the penile por- tion of the organ, and the incision is usually made from behind forward, upon the roof of the urethra. Preparation. — Locate the exact position of the stricture by a bulbous bougie, in the following manner, — introduce the largest-sized bulbous bougie which will pass the stricture — draw it back until its shoulder is felt against the posterior end of the stricture — bend the free portion of the bougie at the external meatus — draw the instrument outward until the bulb slips through the stricture — then push it back until the tip of the bulb rests against the anterior end of the stricture — then again bend the free portion of the bougie at the external meatus — and withdraw the instrument entirely — when the portion of the handle between the two bends will represent the extent and distance of the stricture from the meatus. A more accurate means of getting the desired position and extent of the stricture is accomplished by the ure- thrometer. The urethra should be irrigated with a mildly antiseptic solution before instrumentalization — and a cocain, or other anesthetic solution, thrown into the canal. Position. — Patient supine at edge of table. Surgeon upon left, facing patient's penis. Landmarks. — Previous data gotten from urethrometer, or bulbous bougie. Known anatomy of urethra. H22 OPERATIONS UPON THE MALE GENITAL ORGANS. Operation. — The dilating urethrotome, with closed blades and concealed cutting-edge, and well lubricated with aseptic lubricant, is introduced into the urethra after the fashion of a sound, until the concealed cutting-edge has passed directly opposite the posterior aspect of the stricture, as determined by the previous measurements of the urethrometer corresponding with the measurement and distances marked on the urethrotome. The dilating blades ire then put upon the stretch until the strictured urethra is tensely distended — then the cutting-edge, turned toward the roof of the urethra, is sprung by the controlling screw in the handle — and drawn through the stricture, to its anterior limit, from behind forward. (Fig. 821.) It is then caused to sink below the blades — and the dilating blades again separated. If the Fig. 821. — Internal Urethrotomy: — A dilating urethrotome is shown within the urethra — the limbs of the instrument being moderately dilated — and the knife-blade sprung so as to incise roof of spongy urethra anterior to the triangular ligament. cutting has allowed of sufficient dilatation, it is not repeated — if not, while the urethra is under dilatation, the blade is sprung a second time, and again caused to sink — after which the dilating blades are again separated, to see if sufficient dilatation has been secured, as indicated by the dial upon the handle. If so, the blades are permanently closed and the instrument is withdrawn. If there should be marked bleeding, a large sound, dipped in sterile cold water, is passed into the urethra and the penis bound to it. Comment. — The incision may be made from before backward — but from behind forward is better. It may also be made upon more than one site of the same stricture, but upon the roof generally suffices, and is safer than EXTERNAL PERINEAL URETHROTOMY 1123 upon the floor. Several strictures may be divided simultaneously. If the external meatus be too small to admit the urethrotome, meatotomy should be done. The subsequent passage of sounds is necessary, until healing is complete — and, at intervals, for a considerable time afterward. EXTERNAL PERINEAL URETHROTOMY UPON GROOVED STAFF — SVME'S METHOD. Description — A grooved staff can be passed entirely through the stric- ture — and, upon this, the stricture is divided from the perineum. Special Instruments Required. — Syme's grooved staff, or an ordinary lithotomv staff of small size, grooved medially upon its convex aspect. Gorget, or grooved director, for entering tHe bladder from the perineal wound. Preparation — Position. — As for median perineal cystotomy. Fig. 822. — External Perineal Urethrotomy: — The perineum is shown incised and retracted. A Syme's shouldered, grooved staff is seen engaged within the membranous urethra — while the edge of a knife is shown incising the constricted urethra upon the groove of the instrument. Landmarks. — Median perineal line; position of grooved staff in urethra, and especially the position of the stricture to be divided, as ascertained by previous use of the urethrometer, and also verified by the shouldered portion of the staff corresponding with the urethrometer measurements and resting against the anterior end of the stricture. Incision. — Having introduced Syme's grooved staff, or a small, centrally grooved lithotomv staff, well lubricated, into the urethra and through the stricture — so that its shouldered projection rests against the anterior aspect 1 1 24 OPERATIONS UPON THE MALE GENITAL ORGANS. of the stricture, an incision is made in the median line of the perineum, so placed that the shoulder of the staff (that is, the anterior end of the stricture) will be exposed in the depth of the incision. Operation. — (I) The steps of the operation are, practically, those of median perineal cystotomy, as to structures incised and the manner of dividing them. The cut is made directly toward the shoulder of the instrument — the groove is entered — and, with the back of the point of the knife in the groove, its cutting-edge is pushed in the direction of the neck of the bladder, until the entire stricture is felt to be divided along its floor. (Fig. 822.) (2) A gorget, or grooved director, is now passed along the grooved staff on into the bladder — and the staff is then withdrawn. (3) A soft-rubber catheter is passed through the urethra from the meatus — its end being guided through the perineal wound by the operator's fingers and on into the bladder, upon the grooved director, on the proximal side of the perineal gap. (4) The perineal wound is allowed to heal by granulation around this catheter — being left open in whole — or sutured only at the ends. Comment. — (1) If the catheter cannot be constantly retained, a tube may be carried into the bladder through the perineal wound. But an instrument should be daily passed from the meatus into the bladder during healing, even though a full-length instrument cannot be constantly worn. (2) An ex- tensive perineal wound should be closed in part, from the ends — leaving the center open for the tube and drainage. EXTERNAL PERINEAL URETHROTOMY UPON A FILIFORM GUIDE — GOULEY'S OPERATION. Description. — In cases in which the grooved staff cannot be passed, and only a filiform whalebone guide can be made to enter the bladder — a grooved tunneled guide is carried over the filiform down to the stricture (but not through it) — and, upon this tunneled guide, the upper end of the stricture is exposed — and the filiform is then followed on down into the bladder and the stricture divided. Special Instruments — Filiform whalebone guides; Gouley's (or other) grooved tunneled staff. Preparation — Position. — As for median perineal cystotomy. Landmarks. — Median raphe; scroto-perineal junction ; anus. Incision. — In median line, from base of scrotum to a point about 1.3 cm. (^ inch) anterior to the anus. Operation. — (1) Having succeeded in getting a filiform whalebone guide into the bladder, Gouley's tunneled grooved staff is threaded upon this and carried down into the urethra upon it, with the right hand, while the left hand holds the filiform — until it is arrested at, or within, the strictured urethra. An assistant now takes the filiform and metallic staff in his right hand, and draws up the scrotum with his left. (2) The surgeon incises directly in the median line of the perineum, beginning at the scroto-perineal junction, and ending about 1.3 cm. (^ inch) in front of the anus. The incision at first passes only through skin and fascia. The lower end of the instrument in the urethra is then felt for, the surgeon's left index nail depressing the intervening structures over the groove — and all the intervening tissues are now divided down to and into the groove — in the same manner and order as in median perineal cystotomy. (3) A silk traction-loop is placed in either lip of the urethral wound and the lips are then drawn apart — thus clearly demon- EXTERNAL PERINEAL URETHROTOMY. 1125 strating the interior of the urethral canal, from its normal lumen above to where it disappears below into an almost imperceptible lumen. (4) The metallic staff is now partly withdrawn and steadied by an assistant, using care to retain in situ the filiform, by holding it in the perineal wound as the staff is withdrawn over it. Nothing now remains at the immediate site of the operation but the whalebone guide passing into the bladder. (5) With a probe-pointed bistoury, the filiform is carefully followed backward and the stricture thus divided throughout its length and slightly beyond. The tun- neled staff is then thrust into the bladder over the whalebone guide. (6) The filiform is then withdrawn. A grooved director or gorget is passed into the bladder, through the perineal wound, over the grooved staff — and the staff withdrawn. (7) The remaining steps are the same as in Syme's operation (see sections (3) and (4), including " Comment," page 11 23). EXTERNAL PERINEAL URETHROTOMY UPON GROOVED STAFF PASSED DOWN TO STRICTURE — WHEELHOUSE'S OPERATION. Description. — In these cases the grooved staff cannot be passed through the stricture — nor can a filiform be passed through — but a grooved staff can be passed down to the stricture — and, upon this, the urethra is opened just in front of the stricture and a fine grooved director is passed through it — ■ and the stricture is divided upon this last director. The urethra is thus opened in the median line about 6 mm. (J inch) in front of the stricture — the feature of the operation being that at least this much of the sound urethra should be exposed in front of the stricture. Preparation. — Perineum shaved. Lubricated grooved sound introduced down to the stricture and steadily held in the median line. Position. — Patient supine, in the lithotomy position at the end of the table. Surgeon seated opposite the perineum. Assistant on patient's left, holding staff. Landmarks. — Median line; perineo-scrotal junction; anus. Incision. — From reflection of superficial perineal fascia, at perineo- scrotal junction — to anterior border of sphincter ani. Operation. — (1) Incision is made in the median line to the above extent, and the tissues of the perineum are divided as in median perineal cystotomy — separating the tissues in the direction of the sound until the urethra is reached. (2) The urethra is then divided to a limited extent upon the grooved sound — especial care being taken that the urethra is opened about 6 mm. ({ inch) in front of the stricture — the opening not extending down to the stricture. Looped silk traction-ligatures are then put in through the lips of the divided urethra, upon either side, and the two lips of the urethra are thus drawn apart. (3) The grooved sound is then withdrawn a short dis- tance — just far enough to free its end from the remaining 6 mm. (J inch) of intact urethra in which it had been, up until then, engaged — the sound is then turned through a half revolution upon its axis, so that its extremitv now points outward — and thus hooks up upon its concavity the upper limit (angle) of the urethral wound. The urethral opening is thus stretched apart in a lozenge-shaped manner, by the hooked sound above, by the traction-ligatures on each side, and by the attachment of the intact urethra below. (4) While thus held apart and well exposed, a fine probe-pointed grooved director, or gorget, is insinuated into and along the strictured urethra, with its groove 1 1 26 OPERATIONS UPON THE MALE GENITAL ORGANS. uppermost. Even often when the opening cannot be seen, the director will find its way toward the bladder among a mass of distorted tissue. (5) The groove of the director is now turned downward — and the strictured portion of the urethra is divided upon its floor by a knife passed along the director. The knife is withdrawn and the groove of the director, still in the urethra, is turned upward — and a metallic catheter, or sound, is then passed from the meatus, and is guided through the opened urethra by the fingers in the perineal wound — and thence on to the groove of the director — and thus into the bladder. (6) The metallic instrument is allowed to remain in situ for three or four days during granulation of the parts around the new canal — and is then passed daily until the perineal wound heals. (7) The perineal wound may be partly closed by suture — but is left unsutured in part, at least, for drainage. Comment. — If the staff hooked into the incised urethra be in the way, it can be dispensed with. PERINEAL SECTION, OR EXTERNAL PERINEAL URETHROTOMY WITHOUT A GUIDE — COCK'S OPERATION. Description. — In these cases neither a grooved staff, nor even a filiform bougie, can be passed through the stricture. The urethra is practically im- passable to all instruments (from the presence of several strictures, false passages, rupture, disease, and the like). No attempt is made to use any form of guide. The urethra is opened posteriorly to the stricture and imme- diately anteriorly to the prostate. The bladder is thus relieved — and the anterior portion of the urethra is subsequently treated. Preparation. — Perineum shaved. Bladder partly full. Position. — Lithotomy position at edge of table. Surgeon seated facing perineum. Assistant holds penis and testes out of the way. Landmarks. — Median line; perineo-scrotal junction; anus. Incision. — In median line, from perineo-scrotal junction, to within about 1.3 cm. (h inch) of the anus. Operation. — (1) The surgeon introduces the left index-finger into the rectum, with nail to the sacrum, and keeps the tip of his finger against the apex of the prostate gland. (2) A knife is then made to cut directly and boldly, in the median line of the perineum, toward the tip of the left index- finger — the entire cut being made with one sweep of the knife, the incision beginning above near the perineo-scrotal junction, passing inward to the prostatic urethra, and ending below about 1.3 cm. (J inch) anterior to the anus. The incision of tissues is, practically, the same as that for median perineal cystotomy. The deepest part of this triangular incision will be at the apex of the prostate gland, and the most superficial at the upper and lower ends of the base of the triangle upon the perineum. The knife is at no time withdrawn until the full depth of the wound and apex of the prostate gland are reached, as its reinsertion would be uncertain. In the depth of the wound the knife-point is guided by the tip of the left index-finger — and the urethra, at the posterior part of the membranous portion, is divided in its median aspect, or slightly obliquely — the anterior part of the prostate often also being divided. (3) Having incised the urethra, the knife is withdrawn — but the left index is kept in the rectum in contact with the apex of the prostate. (4) While the edges of the deep perineal wound are well retracted, a fine probe- pointed director is inserted into the opened urethra, guided by a finger in the rectum — and pushed on into the bladder. (5) Perineal drainage is estab- URETHROSTOMY. 1127 lished by passing a soft catheter, through the wound in the perineum, into the bladder — the catheter being held in place by the perineal bandage. (6) This operation is generally resorted to where the urethra is very ex- tensively involved or destroyed. If, therefore, the perineal opening is not to be a permanent one, steps may be taken subsequently, after restoration of the structures in whole or in part, with reference to the opening up of the anterior portion of the urethra by dilatation or urethrotomy. Comment. — While the original operation by Cock was done in this manner, and generally abandoned if the urethra was not reached in two or three attempts, there is no reason why (and this is now generally done) the tissues should not be divided more deliberately and the urethra more per- sistently sought for. One should be guided by an intimate knowledge of the anatomy of the parts, in the face of great difficulties — for often the struc- tures are unrecognizably altered. URETHRORRHAPHY. Description. — Suturing of the urethra. Indicated in incised and rup- tured wounds and in fistula. Preparation — Position. — As for Urethrotomy. Landmarks — Incision. — Determined by nature and site of wound. Operation. — Having exposed the site of the wounded urethra, by ex- ternal incision — a metal sound or soft catheter is passed through the urethra, using special care not to increase the wound. With fine chromic gut, or fine silk, carried in a curved needle held in a holder, the opposite edges of the wounded urethra are united by interrupted sutures passing through the entire thickness of the lips of the wound — except the mucous membrane. A soft catheter is worn for two or three days, until time has been given for the shutting-off of the wound from the interior of the urethra, The external wound is left open, being packed with gauze until the urethral wall has healed — to avoid the danger of urinary infiltration. Comment. — There are several plastic operations which may be done for urinary fistula. URETHROSTOMY. Description. — Making of a more or less permanent opening of the urethra upon the perineum. Indicated where the anterior portion of the urethral canal is impermeable, as for stricture, — or in case of amputation of the penis. Preparation — Position — Landmarks. — As for median perineal cys- totomy. Incision. — Determined by the special circumstances of the case. Operation. — (a) For the establishment of Urethrostomy following ampu- tation of the penis, see section 5, under " Operation," page n 17. (b) In per- forming Urethrostomy in connection with a strictured urethra: — Having exposed the strictured site, divide the urethra transversely, just behind the stricture, and free the proximal end of the urethra to a limited extent. Slit the proximal end slightly upon its floor, or upon floor and roof — and suture the lips thus formed by slitting, into the skin of the perineum. Suture up the proximal end of the distal portion of urethra — and close the wound up to the margins of the implanted urethra. 1128 OPERATIONS UPON THE MALE GENITAL ORGANS. III. THE SCROTUM AND TESTES. SURGICAL ANATOMY. (A) The Scrotum and Coverings of Testes and Cords. Description. — The scrotum is a cutaneo-musculo-areolar sac, investing the testes and part of the spermatic cords. It is composed of skin and dartos — the remaining layers mentioned below being, more properly, coverings of the testes and cords. Skin. — Of characteristic appearance. Continuous with the general Integument. Marked in the middle line by a raphe, which divides the scrotum into two lateral halves superficially. Dartos. — Proper tunic of the scrotum — composed of reddish, elastic, and unstriped muscle tissue — continuous with the superficial and deep layers of the superficial fascia. Septum scroti — formed by the dartos — extending from the raphe to the inferior surface of the penis — dividing the scrotum into two cavities for the two testes, the left cavity being the longer. Intercolumnar or External Spermatic Fascia. — Derived from borders of pillars of external abdominal ring. Continuous with superficial perineal fascia and superficial fascia over the symphysis pubis. Loosely (Gray — closely, according to Morris) adherent to the dartos. Intimately adherent to the cremasteric fascia. Cremasteric or Middle Spermatic Fascia. — Fibro-muscular layer de- rived from lower border of internal oblique muscle. Infundibuliform Fascia (Fascia Propria, or Internal Spermatic Fascia). — Connective-tissue layer derived from both the infundibuliform process of the fascia transversalis and also from the subperitoneal connective tissue (which latter may be considered a separate or sixth layer). Tunica Vaginalis. — Closely connected with the testicles, with which it is described. Arteries. — Superficial and deep external pudic of femoral; superficial perineal of internal pudic; cremasteric of epigastric. Veins. — Correspond with arteries and empty into pudic, long saphenous, and dorsal vein of penis. Lymphatics. — End in innermost set of inguinal glands. Nerves. — Ilio-inguinal; superficial perineal branches of internal pudic; inferior pudendal branch of small sciatic; genital branch of genitocrural. (B) The Testes. Description. — The testes consist of the testicles proper and the epi- didymes, the latter also being the beginnings of the vasa deferentia. The coverings of the testicles are — the tunicae vaginalis, albuginea, and vasculosa. Tunica Vaginalis. — A closed serous sac originally derived from the peritoneum, surrounding the testicle with two layers; — (a) Visceral Layer — closely adherent to testicle proper, to globus major, to external part of body of epididymis, and to lower 1.3 cm. (h inch) of spermatic cord. Nearly all of the globus minor and inner and back parts of epididymis are uncovered, and here the vascular communications exist between the testis and coverings, (b) Parietal Layer — continuous with and reflected from the visceral layer at the posterior and inferior aspects of the testis and at the spermatic cord — adherent to the inner surface of the infundibuliform fascia, to which it is PARTIAL EXCISION OF THE SCROTUM. 1129 attached by the prolongation from the subperitoneal areolar tissue — and extends up upon the antero-internal aspect of the cord and below the testis, (c) Cavity of the tunica vaginalis — interval between visceral and parietal layers. Tunica Albuginea. — The dense, inelastic fibrous covering of the testicle — reflected into the interior of the testicle at its posterior aspect to form an incomplete septum and trabecular, the mediastinum testis. Tunica Vasculosa. — A layer formed by a plexus of vessels running in the areolar tissue. Lines the tunica albuginea and trabecular. Lobuli Testis. — Consist of tubuli seminiferi, resting in the trabecular spaces — forming the glandular structure of the testis. Arteries. — Spermatic, of abdominal aorta (divides into branches which pierce the tunica albuginea at the back of gland). Veins. — Spermatic (begin in testis — leave it posteriorly — and ascend cord, forming pampiniform plexus). Lymphatics. — Follow spermatic vessels and empty into lumbar glands. Nerves. — From aortic and hypogastric plexuses. PARACENTESIS TUNIGE VAGINALIS. Description. — Penetration of the tunica vaginalis sac with a hollow needle or an exploratory trocar and cannula — for the purpose of withdrawing or injecting fluid. Generally indicated in hydrocele. Preparation — Position — Landmarks. — As in operating for Hydrocele. Operation. — The scrotum is grasped posteriorly by the surgeon's left hand in such a way as to render the anterior aspect of the tumor tense. The needle or trocar is so held with the right index near its point as to fix the maximum depth to which it can enter. Thus held, it is thrust sharplv into the antero-inferior aspect of the sac, at about the upper limit of its lower third — passing, at first directly backward — and then upward (thus missing the testicle). The fluid having been withdrawn (or injected), the instrument is withdrawn — the opening sealed with sterile collodion and cotton — and the testicle supported by a compressing dressing. Comment. — The testicle usually lies posterior to a tunica vaginalis filled with hydrocele fluid — but sometimes lies below — and sometimes lies in front. PARTIAL EXCISION OF THE SCROTUM. Description. — Removal of the lower portion of the scrotal tissues. Gen- erally resorted to in relaxation and elongation of the scrotum, and as an aid in varicocele. Preparation. — Scrotum shaved. Position. — Patient supine, at edge of table. Surgeon on side of involved sac, or on patient's right. Assistant opposite. Landmarks. — Lower limit of testicle. Operation. — The testicle is pressed upward toward the external abdom- inal ring, to be well above the possibility of injury. The lower portion of scrotal tissue is clamped with special forceps (or clamps), or any pair of long forceps whose blades will close lightly and parallel with each other — so that the lower border of the clamps will be on a level with the line upon which it is desired to remove the scrotal sac (Fig. 823). Clamp sufficiently firmly to ii30 OPERATIONS UPON THE MALE GENITAL ORGANS. control hemorrhage. Divide the scrotal tissues with a knife, cutting along the lower border of the clamps. Unclamp slightly, to reveal the position of bleed- ing vessels — which are then ligated with gut, that no subsequent bleeding may Fig. 823. — King's Scrotal Clamp. take place into the loose tissues. While the edges are still held in the clamps, they are sutured together, interruptedly or continuously — after which the clamps are relaxed. No drainage is used. The part is well supported and compressed by the dressing. Fig. 824. — Partial Excision of the Scrotum: — The lateral aspects of the scrotum are held apart by traction sutures. Interrupted through-and-through sutures prevent the testicles from escaping from the scrotum and also partly control hemorrhage. The overhand sutures of the free margins complete the operation, also controlling hemorrhage. (Redrawn from Hartmann.) Comment. — The first and second fingers of an assistant's right and left hands, separated to clasp the scrotum, the index-fingers crossing each other in front, and the second fingers crossing each other behind, the scrotum, make satisfactory clamps. The operation may be done without any form of clamp by first introducing retention and hemostatic sutures, as shown in Fig. 824. OPERATION FOR HYDROCELE. 1131 OPERATION FOR HYDROCELE BY INCISION OF TUNICA VAGINALIS — VOLKMANN'S OPERATION. Description. — The tunica vaginalis is incised vertically in its anterior aspect and stitched to the scrotal skin — its cavity being then packed with gauze and allowed to heal by granulation. Preparation. — Scrotum shaved. Penis wrapped in gauze and held away from the field of operation. Position. — Patient supine, at edge of table. Surgeon on side of opera- tion. Assistant opposite. Landmarks. — Position of the testicle proper. Fig. 825.— Volkmann's Operation for Hydrocele: — A, Lip of scrotal wound; B, Tunica vaginalis, incised ; C, Testis ; D, Suture passing through tunica vaginalis and entire thickness of lip of scrotal wound. Incision. — About 5 cm. (2 inches) in length — along the anteroinferior aspect of the tumor. Operation. — (1) The assistant so grasps the tumor as to render tense and prominent its anterior aspect — and, at the same time, keeps the testicle out of the way of injury. (2) An incision of about 5 cm. (2 inches) in extent is made along the anteroinferior aspect of the tumor — passing through the tissues overlying the tunica vaginalis (skin, dartos, intercolumnar fascia, cremasteric fascia, and infundibuliform fascia) through the tunica vaginalis and into its cavity. (3) After the escape of the hydrocele fluid the edges of the tunica vaginalis are sutured to the edges of the scrotal skin by from four to eight chromic gut sutures — and the cavity itself, of the tunica vaginalis, is packed with gauze — and heals by granulation, thus obliterating the cavity. The scrotum is well supported and compressed by the dressing. (Fig. 825.) 117,2 OPERATIONS UPON THE MALE GENITAL ORGANS. OPERATION FOR HYDROCELE BY EVERSION AND SUTURING OF THE TUNICA VAGINALIS — JABOULAY's METHOD. Description. — After having freed the testicle from the tunica vaginalis, the edges of the tunica are displaced backward and sutured behind the testicle. Preparation — Position — Landmarks — Incision. — As for Volkmann's operation, page 1131. Operation. — Having incised the tunica vaginalis longitudinally, the testicle proper is pressed forward in such a way as to evert the entire vaginal tunic. The everted sac is then displaced backward and its margins sutured behind the testicle in such a manner as to bring the serous surface of the tunica vaginalis everywhere into contact with the tunica dartos (Fig. 826). Fig. 826. — Operation for Hydrocele by Eversion of the Tunica Vaginalis: — The incised tunic is everted and its margins sutured together behind the testicle and cord. (Redrawn from Hartmann.) The testicle and everted tunica vaginalis are then replaced within the scrotum and the skin wound sutured. Thus the cavity of the tunica vaginalis is entirely obliterated. Comment. — (1) Care is to be exercised that the structures of the cord be not too tightly compressed in the act of suturing the everted tunic around it. (2) It has happened that the everted tunic has gone on secreting its fluid into the scrotal tissues. (3) Andrews incises the tunica vaginalis anteriorly — and in the act of expressing the testicle through this opening he everts the tunic ■ — which remains everted without suturing. OPERATIOX FOR HYDROCELE. ^33 OPERATION FOR HYDROCELE BY INCISION, WITH PARTIAL EXCISION OF TUNICA VAGINALIS— VON BERGM ANN'S OPERATIOX. Description. — Incision of the tunica vaginalis, with removal of its parietal layer, followed by closure of the scrotal wound, with or without drainage. Preparation — Position — Landmarks — Incision. — As for Volkmann's operation. Operation. — (i) While the scrotum is held as in Volkmann's operation, Fig. 827.— Von Bekgmann's Operation for Hydrocele :— A, Margin of incised tunica vagi- nalis ; B, Testis ; C, Portion of visceral layer of tunica vaginalis being excised with curved scissors, while being drawn upon with forceps ; D, Inner aspect of scrotal sac from which tunica vaginalis has been separated. an incision is made over its antero-external aspect, about 7.5 cm. (3 inches) in length, down to the tunica vaginalis. (2) The tunica vaginalis is then incised in the same line, at first to the extent of about 1.3 cm. (\ inch). Through this opening the finger is introduced and the cavity of the tunica vaginalis and the position of the testicle examined. (3) The collapsed tunica vaginalis is then incised to the full extent of the external wound with scissors. All bleeding vessels are clamped and tied. (4) The parietal layer of the tunica vaginalis is seized and partly peeled, partly dissected away from the scrotum, by fingers and forceps — nearly up to the epididymis, externally — and nearly "34 OPERATIONS UPON THE MALE GENITAL ORGANS. up to the testicle internally — along which lines it is cut away with scissors. Bleeding from this step is controlled by pressure, hot douching, and gut- ligature. (Fig. 827.) (5) A drainage-tube is then usually inserted into the cavity and the lips of the scrotal wound closed by suturing up to the drainage- tube. Drainage may be omitted in favorable cases. The scrotum is well supported by the dressing. ORCHIDECTOMY. Description. — Orchidectomy, or castration, consists in the incision of the scrotum, followed by excision of the testicle and the structures of the lower part of the cord — and closure of the scrotal wound. Preparation. — Scrotum and pubis shaved. Fig. 828. — Orchidectomy: — A, Superficial vessel in lip of incised scrotum; B, Testis; C, Sper- matic artery and pampiniform plexus of veins, ligated ; D, Vas deferens and artery, ligated ; E, Cre- masteric artery and posterior spermatic veins, ligated. Position. — Patient supine, near edge of table, with thighs separated. Surgeon to patient's right, in operating upon either side. Assistant opposite Landmarks. — Testicle; cord; external ring. Incision. — Vertical incision, from just below the external abdominal ring to the lower end of the scrotum, upon the antero-external aspect of the cord — the scrotum being held in the palm of the left hand, with the index and thumb extending upward on either side and rendering the parts slightly tense. Where redundant or diseased tissue exists, an elliptical incision may be made — in- cluding and removing the redundant or involved tissue. Operation. — (1) The vertical incision above described is made directly SURGICAL ANATOMY OF THE SPERMATIC CORD. II35 down through the overlying parts (skin, dartos, intercolumnar fascia, cremas- teric fascia, infundibuliform fascia) to the cord and tunica vaginalis. (2) By blunt dissection, the testicle, surrounded by the unopened tunica vaginalis, is shelled out of its bed. The structures of the cord are similarly isolated, en masse, chiefly by blunt dissection, as high up as necessary — generally about 2.5 cm. (1 inch) below the external abdominal ring. (3) The component structures of the cord (see anatomy of the cord, page 1135) are now ligated — which is best done by teasing them apart to the extent of dividing them up into three or four bundles of vessels and ligating each bundle separately with chromic gut, independently of whether composed of arteries, veins, or vas deferens. This is better than to include the entire mass in one or even in two ligatures, and is, practically, as satisfactory as attempting to recognize and tie the vessels separately. (Fig. 828.) (4) All bleeding vessels are con- trolled by clamping or ligation with gut — and are, usually, the superior ex- ternal pudic, inferior external pudic, superficial perineal, and artery of the septum scroti. (5) The scrotal wound is then put upon a slight stretch and sutured throughout, so approximating the edges as to prevent in-turning — using interrupted sutures of chromic gut or silkworm-gut. If indicated, temporary drainage may be used in the lower part of the scrotal wound. The scrotum is well supported by dressing. Comment. — (i) The tunica vaginalis is frequently opened before removing the testicle, for the purpose of examination. (2) In other cases the testicle and visceral layer are cut away from the parietal layer of the tunica vaginalis and removed, leaving the latter. (3) The cord may first be clamped and cut — and the vessels tied later. (4) If the arteries can be recognized and separately tied, it is somewhat more surgical. IV. THE SPERMATIC CORD. SURGICAL ANATOMY. Structures of Cord. — Consist of the vas deferens (which begins in the globus minor of the epididymis), arteries, veins, lymphatics, nerves, processus vaginalis, and internal cremaster of Henle — all connected by areolar tissue and surrounded by the fascia: which descend, together with the testes, from the in- ternal abdominal rings, through the inguinal canals, into the scrotum to the summit of the testes. Arteries of the Cord. — Spermatic, of abdominal aorta — lying anterior to vas deferens and surrounded by pampiniform plexus of veins; artery of vas deferens, of superior or inferior vesical — accompanying vas deferens upon its lateral aspect; cremasteric artery, of deep epigastric — lying superficially and upon the external aspect. Veins. — Most of the spermatic veins pass through the inguinal canal and emptv into the inferior vena cava on the right — and into the renal vein on the left. They may be divided into three sets;— (1) Anterior Set— much larger, form pampiniform plexus, accompany the spermatic artery and ascend the cord anterior to the vas;— (2) Posterior Set — much smaller, surround the vas deferens and accompany the artery of the vas;— (3) Some independent veins. Lymphatics. —Empty into the Lumbar Glands. Nerves. — From the spermatic and pelvic plexuses. 1 136 OPERATIONS UPON THE MALE GENITAL ORGANS. Vas Deferens. — Lying posteriorly and recognized by its cord-like feeling. Processus Vaginalis. — Remnant of obliterated tube of communication between tunica vaginalis and peritoneum. Internal Cremaster of Henle.— Scattered bundles of muscle-fibers. Fatty Areolar Tissue. — Connecting constituent structures of cord. Epididymes. — Formed by vasa efferentia — which pierce the tunica al- buginea and, becoming convoluted into the coni vasculosi, form the globus major, at the upper, inner aspect of the testicle. The vasa efferentia thus unite to form the body of the epididymis, along the inner aspect of the testicle — end- ing below in the globus minor, at the lower inner aspect of the testicle — which terminates in the vas deferens. Vasa Deferentia. — Continuation of the epididymes — extending from the globus minor to the prostatic urethra. Ascends on the inner side of the epididy- mis and back of the testis — passing vertically up the cord, posterior to the sper- matic vessels — enters the external abdominal ring — runs through the inguinal canal — emerging from the internal abdominal ring, it passes around the outer side of the origin of the deep epigastric artery and runs downward and inward, crossing the external iliac vessels into the pelvis to the side of the bladder, running under the peritoneum — thence curves backward and downward to the postero-lateral surface of the bladder — crossing over the cord of the obliterated hypogastric artery, and lying internal to the ureter, passing between the ureter and bladder — thence it ceases to be covered by peritoneum, running forward to the base of the prostate, lying between the bladder and rectum and attached to the former (bladder) — being placed internal to the vesiculae seminales. Near the base of the prostate, each vas enlarges somewhat (ampulla) and joins the duct of the corresponding seminal vesicle, to form the ejaculatory duct of that side — the ejaculatory duct opening into the sinus pocularis of the pros- tatic portion of the urethra. After the vas ceases to be subperitoneal, it is invested by recto-vesical fascia and a prolongation of the subperitoneal tissue. The efferent ducts consist of cellular, muscular, and mucous coats. Its artery is the artery of the vas deferens, a branch of the superior vesical of the internal iliac. Its lymphatics end in the iliac glands. The angle of approximation of the ejaculatory ducts lies immediately above the prostate. For the anatomy of the ejaculatory ducts, see the vesiculae seminales. INSTRUMENTS. See those mentioned under the urethra and penis. PARTIAL VASECTOMY. Description. — A division of the vas deferens, with a limited excision of its trunk. Sometimes resorted to in cases of hypertrophy of the prostate gland. Preparation — Position — Landmarks. — As in operating for varicocele. Incision. — In the course of the spermatic cord, beginning just below the external abdominal ring and extending downward for about 4 cm. (i-J- inches). Operation. — Incise skin and fascia — clamp and ligate superficial vessels. Expose the spermatic cord just below the external abdominal ring — locate the vas — and isolate it from the accompanying structures. Place two gut ligatures upon it, about 2 cm. (f inch) apart, and excise about 1.3 cm. (h inch) of its length. Close the wound with gut or silkworm-gut. OPERATION FOR RADICAL CURE OF VARICOCELE. "37 OPERATION FOR THE RADICAL CURE OF VARICOCELE. BENNETT'S MODIFICATION OF HOWSE'S OPERATION. Description. — Consists in an incision of the scrotum and cord, with a partial excision of the pampiniform plexus of veins (which is the set chiefly involved in varicocele) — followed by suturing of the proximal and distal ends of the severed plexus together. Preparation. — Pubis and scrotum shaved. Fig. 829. — Bennett's Modification of House's Operation for Varicocele : — Between retracted lips of scrotal wound are seen two stumps left by excision of bulk of scrotal veins. A, One end of upper ligature being threaded through upper stump laterally ; B, Same of lower stump and ligature. The long limbs of this ligature are tied together — and the short limbs together. C, Suture carried through the stumps antero-posteriorly and tied. The stumps are approximated by tightening the sutures. Position. — Patient supine, at edge of table. Surgeon on side of operation. Assistant opposite. Landmarks. — Site of varicose tumor. Position of testicle and cord. Ex- ternal abdominal ring. Incision. — Longitudinal incision, about 4 to 5 cm. (i\ to 2 inches) in length, made over the structures of the cord, with its center over the site of the greatest varicosity. Operation. — (1) As soon as the incision is made through skin and fascia, the bleeding vessels are damped and tied — and two silk retraction-loops are put into the lips of the wounds and these lips well retracted — thus exposing the 1 138 OPERATIONS UPON THE MALE GENITAL ORGANS. structures of the cord. (2) The vas deferens is the first structure of the cord to be identified — and this is done for the purpose of henceforth avoiding in- juring it This structure and its artery, and the posterior set of veins accom- panying it, are kept as much out of the field as possible. (3) The pampini- form plexus of veins, together with the surrounding fascia especially preserved and unopened, are isolated from the more important structures and are freed for about 4 to 5 cm. (15 to 2 inches), according to the size of the varicocele, by blunt dissection. (4) Strong chromic gut ligature is carried, up on an aneu- rism-needle, around the lower portion of the freed part of this plexus of veins and tied tightly, both ends being left long. The same is then done at the upper portion of the freed part — the ligatures being about 4 cm. (i\ inches) apart. About 2.5 cm. (1 inch) in extent of this venous plexus is now removed with scissors, which cut about 6 mm. (j inch) from each ligature. (5) One of the free ends of each ligature is now threaded and carried through its own end, so as to come out opposite the knot. The two ends which were threaded are then tied together. The other two ends are similarly treated and tied. The free ends of the venous plexuses left by the excision are thus approximated, together with their sheaths of surrounding fascia — thus shortening the cord and partially, perhaps, taking the weight of the lower part of the cord from the scrotum. (6) The wound is then gut-ligatured throughout. (Fig. 829.) Comment. — (1) As much in length of the plexus may be removed as con- sidered necessary in the special case. (2) Isolation of the veins to be ligated is aided by passing a director above, and one below, between the veins to come away and the structures to remain — and then separate the parts upward and downward in this line. (3) Especially avoid opening the fascial sheath sur- rounding the veins of the pampiniform plexus to come away — as they are much more readily manipulated when intact. (4) Avoid cutting the cremas- ter muscle. (5) Avoid removing an excess of vascular structures — for fear of damaging the blood-supply of the part too greatly. V. THE VESICULiE SEMINALES AND EJACULATORY DUCTS. SURGICAL ANATOMY. (A) Vesicul/E Seminales. Description. — Two diverticular, membranous, seminal reservoirs placed between the bladder and the rectum — lying external to the ampulla? of the vasa deferentia — their upper extremities being subperitoneal. They average, in length, about 6.3 cm. (2^ inches) — breadth, about 1 cm. (y^-inch) — thickness, about 6 mm. (\ inch). Relations. — Superiorly; base of bladder, from near entrance of ureters to base of prostate gland. Inferiorly; rectum, with the recto-vesical fascia intervening. Anteriorly; converging, unite with vasa deferentia (which lie to their inner side) to form the ejaculatory ducts. Posteriorly ; the free ends diverge, overlapping the ureters, which pass between the vesiculae semi- nales and the bladder. The recto-vesical pouch of peritoneum covers the upper part of the posterior aspect of the seminal vesicles. (B) Ejaculatory Ducts. Description. — Formed by union of vasa deferentia and vesicula? seminales TOTAL EXCISION OF VESICUL^ SEM1NALES. 1 139 of each side. They are about 2 cm. (f inch) in length. Beginning at base of prostate, they pass forward and downward between the middle and lateral lobes — perforate the prostatic fissure — and empty at or within the margins of the sinus pocularis, in the prostatic portion of the urethra. Its coats are fibrous, muscular, and mucous. Arteries of Vesiculae Seminales and Ejaculatory Ducts. — Artery of vas deferens, of superior vesical branch of internal iliac; inferior vesical, of internal iliac; middle hemorrhoidal, of internal iliac; middle vesical, of internal iliac. Veins. — Accompany arteries. Lymphatics. — End in pelvic glands. Nerves. — From hypogastric plexus. INSTRUMENTS. See those used in operating upon the bladder. TOTAL EXCISION OF VESICUL^ SEMINALES AND PART OF EJAC- ULATORY DUCTS F.V SUPRAPUBIC RETROCVSTIC EXTRAPERITONEAL ROUTE — YOUNG'S OPERATION Description. — The total excision of the seminal vesicles (Spermatocys- tectomy) and the partial excision of the ejaculatory ducts, by a suprapubic T-shaped incision. The posterior aspect of the bladder is exposed by a median suprapubic, incision, with the addition of a transverse incision at its upper end. Through this incision, which does not pass into the peritoneal cavity, the peritoneum is peeled away from the posterior wall of the bladder, until the vesicular seminales are exposed. The seminal vesicles are then removed — and the ejaculatory ducts are traced to the internal abdominal rings and also re- moved at this point. Preparation. — Bowels emptied. Bladder partly filled. Pubic and supra- pubic regions shaved. Position. — Patient in Trendelenburg position. Surgeon to patient's left. Assistant opposite. Landmarks. — Symphysis pubis; median line; known relations of the parts. Incision. — T-shaped. The median suprapubic incision is made from just above the umbilicus to the symphysis pubis. The transverse incision, about 7.5 cm. (3 inches) in length, extends across the upper end of the vertical incision, just above the umbilicus and in the linea transversa. The median incision passes between the recti muscles — and the transverse incision divides them as far as it extends. Operation. — (I) The median incision is carried down in the median line just as in median abdominal section- — passing through the fascia posterior to the recti — down to but not through the peritoneum. (2) The peritoneum, having been exposed, is carefully separated from the posterior wall of the blad- der in the median line — keeping comparatively near the median line, to avoid severing many of the nutrient vessels of the bladder by separating the perito- neum too far laterally. Upward traction of the posterior bladder-wall — while, at the same time, pressing backward the rectum — aids the separation of the peritoneum from the back of the bladder. (3) The vasa deferentia are thus U40 OPERATIONS UPON THE MALE GENITAL ORGANS. exposed and freed from the bladder by blunt dissection — during which the vesiculae seminales are encountered, lying slightly to the outer side, and are similarly freed. (4) Both vesiculae seminales and vasa deferentia are divided by blunt dissection close to the upper border of the prostate gland. The vasa deferentia are then traced on outward over the lateral aspects of the bladder to the internal abdominal rings — and there ligated and divided. (5) In con- cluding the operation, the transversely divided recti are repaired with chromic gut. The longitudinal wound is sutured as in abdominal section — leaving the lower portion open — through which a temporary gauze drainage is usually conducted. Comment. — (1) Hemorrhage is controlled by gut-ligaturing and gauze- packing. (2) Briefly summarizing the operation, the steps are: — Separation of peritoneum from base of bladder — Separation of rectum from base of blad- der — Excision of vesiculae seminales and of the vasa deferentia as far out as the internal abdominal rings. (3) Guard the ureters by adhering to the area as near the middle line as possible. They are made easier of detection by up- ward traction upon the bladder. (4) A sound introduced into the bladder during the progress of the operation will often be of aid. (5) The incision may pass through the upper half of the prostate and a portion of the prostate be thus removed, attached to the seminal vesicles — which is accomplished by an in- cision beginning at the upper part of the prostate, anterior to its junction with the vesiculae seminales, and passing obliquely posterior to the urethra and terminating about the center of the posterior aspect of the prostate. (6) The seminal vesicles may be exposed by a transverse perineal incision — and also by the sacral route, as in the operations for excision of the rectum. VI. THE PROSTATE GLAND. SURGICAL ANATOMY. Description. — A fibro-muscular glandular body in front of the neck of the bladder and surrounding the beginning of the urethra, placed posteriorly and inferiorly to the symphysis pubis and posteriorly to the triangular ligament, and resting upon the rectum. Its measurements are the following: — transversely at base, about 4 cm. (1^ inches); antero-posteriorly, about 2.5 cm. (1 inch); depth, about 2 cm. (f inch). The prostatic urethra pierces the gland generally one-third nearer the posterior than the anterior aspects, — though it sometimes passes nearer the anterior aspect, — and sometimes only the inferior three- fourths of the urethra is surrounded by the prostate. The ejaculatory ducts pierce the gland obliquely forward between the middle and lateral lobes, open- ing into the prostatic portion of the urethra. The glands of the prostate open into the prostatic sinuses. The prostatic sinuses lie upon either side of the verumontanum, in the prostatic part of the urethra. Capsule of Prostate Gland. — Firm, thin, fibrous membrane derived from the recto-vesical portion of the pelvic fascia — separated from the superior layer of the deep perineal fascia by a plexus of veins. Divisions of Prostate Gland. — (1) Two Lateral Lobes — deeply notched posteriorly and slightly furrowed anteriorly. (2) Middle Lobe — a small, ir- regularly shaped prominence upon the posterior aspect of the gland, between the two lateral lobes, lying above the sinus pocularis and between the ejacu- latory ducts — and placed directly under the neck of the bladder, posterior to beginning of urethra. PROSTATECTOMY, IN GENERAL. 1141 Fixations. — Held in place by the anterior or pubo-prostatic ligaments of bladder; by the superior layer of the triangular ligament; and by the anterior part of the levatores ani. Base of Prostate. — Directed upward and backward. Lies somewhat above level of center of symphysis pubis, resting upon and connected with neck of bladder. Apex. — Directed downward and forward, resting upon superior layer of triangular ligament. Lies about 1.3 cm. (h inch) behind and slightly inferior to the subpubic angle. By rectal examination, about 3 cm. (ij inches) above the edge of the an is. Anterior Surface. — Convex. Lies about 2 cm. (f inch) posterior to lower aspect of symphysis. Covered by prostatic plexus of veins, by pubo-prostatic ligaments, and by vesico-pubic muscle. Posterior Surface. — Flattened. Rests upon anterior aspect of rectum, some dense connective tissue and muscular fibers intervening. Lateral Surfaces. — In relation with superior surfaces of levatores ani and the lateral portions of the venous plexuses. Extend upward as two indistinctly defined lobes. Arteries. — branches of inferior (and probably middle) vesical, from an- terior trunk of internal iliac; branches of hemorrhoidal arteries; branches of internal pudic. Veins. — Receive dorsal vein of penis and form plexuses about anterior and part of lateral aspects of gland — and empty into branches of internal iliac vein . Lymphatics. — End in pelvic glands. Nerves. — Form hypogastric plexus. INSTRUMENTS. See those used in operating upon the Bladder. PROSTATOTOMY. Description. — Incision of prostate gland. Indicated in abscess — and sometimes resorted to for division of the prostatic bar or collar at neck of bladder. Operation. — While the prostate gland may be exposed by a median peri- neal incision, as in Cock's operation for perineal section, a more complete and satisfactory exposure may be obtained by the transversely curved perineal in- cision described under proctatectomy. For the exposure of the prostate by either of these incisions, therefore, see pages 11 26 and 1143. PROSTATECTOMY, IN GENERAL. Description. — Consists in the removal of part or the entire prostate gland. Indicated chiefly in marked hypertrophy of the prostate. Prostatectomy may be complete or partial — dependent upon the amount of gland removed. Varieties of Prostatectomy. — (1) Suprapubic — applicable to smaller growths, and especially applicable to enlargement of the middle lobe alone, or to enlargement of middle lobe together with the intravesical part of the lateral lobes. (2) Perineal Prostatectomy — applicable to larger involvements, and especially of the lateral lobes and to sub-urethral growths. Affords excellent 1 142 OPERATIONS UPON THE MALE GENITAL ORGANS. drainage. (3) Combined Suprapubic and Perineal Prostatectomy — giving freest access to largest growths. This method is probably the best. Even if the perineal operation be done immediately after, a suprapubic cystotomy enables the vesical aspect of the prostate to be thoroughly examined. SUPRAPUBIC PROSTATECTOMY BY MEDIAN VERTICAL INCISION. Description. — Consists in the removal of the prostate gland through a median suprapubic incision. This operation is frequently only a partial pros- tatectomy, consisting in the removal of the median lobe of the prostate and the intravesical parts of the lateral lobes. Preparation — Position — Landmarks — Incision. — As for suprapubic cystotomy (page 1096). Operation. — (1) Having irrigated the bladder, and partly filled the rectal bag with fluid (which should not be more than six or eight ounces if the pros- tate be large and hard), the operation is conducted precisely as in suprapubic cystotomy, up to the opening of the bladder, control of hemorrhage, and re- traction of the lips of the bladder-wound with silk traction-loops. (2) This much having been accomplished, the condition of the prostate and urethral opening are carefully examined with the finger — using great care in all manip- ulations not to detach the bladder from its connective-tissue plane. (3) Enucleation of the enlarged prostate accessible from the bladder is now ac- complished by fingers, blunt dissector, curved blunt scissors, a curette, and forceps (the instruments all having long handles). The mucous membrane overlying the hypertrophied middle lobe is incised vertically with scissors — and the enlarged growth is shelled out of its bed. The mucous membrane should be divided, as nearly as possible, in the median line, to allow of subsequent suturing, where feasible, though suturing is not absolutely necessary. Often pedunculated parts are simply cut away at their pedicles. Where a collar-like bar of hypertrophied gland around the beginning of the urethra is encountered, it is divided by inserting a blade of the scissors into the urethra and severing it by closure of the blades (if special scissors with serrated edges be used, hem- orrhage will be less) — the forefinger is then inserted into the wound thus made — and, while an assistant pushes the prostate upward into the bladder by counter-pressure from the perineum, the surgeon continues the process of enucleation, removing as much of the lateral lobes as possible, in mass or in piecemeal — and as much of the sub-urethral prostate as can be reached and removed by sweeping the finger around the urethra and enucleating from be- tween the urethral wall and capsule of the gland. (4) At the end of the opera- tion, the edges of the mucous membrane should be sutured with catgut, if possible. If inaccessible, or too much torn up, they may be dropped into place without suturing. Patency of the urethra should be ascertained by the passage of a sound through the meatus and by digital examination of the prostatic urethra. (5) A large drainage-tube is inserted into the bladder through the suprapubic wound — around which the edges of the abdominal wound are closed as in suprapubic cystotomy. Comment. — (1) The Trendelenburg position is convenient after opening the bladder. (2) Intravesical hemorrhage is controlled by hot douching and gauze pressure. In some cases excessive hemorrhage may necessitate the packing of the bladder with gauze. (3) The operation should be planned so as to secure a level, low floor at the bladder opening of the prostatic urethra. PERINEAL PROSTATECTOMY "43 (4) Some operators make a counter-opening in the perineum after the opera- tion — which should be resorted to if much damage have been done — and both perineal and suprapubic drainage be used. PERINEAL PROSTATECTOMY BY TRANSVERSE CURVED INCISION'. Description. — The prostate is exposed by a transversely curved incision — the capsule of the gland being divided transversely and the gland tissue enu- cleated with the finger. Preparation — Position. — As for perineal cystotomy (page 1102). Landmarks. — Ischial tuberosities; subpubic arch. Incision. — Extends from one ischial tuberosity to the opposite, curving convexly forward toward the inferior margin of the subpubic arch (Fig. 830, A). Operation. — (1) Incise the skin and superficial fascia — divide the ischio- rectal fattv areolar tissue in the line of incision, passing clown to the levatores ani. (2) Retract forward the superficial perineal vessels and nerves, the artery and nerve to the bulb, and the transversus perinaei muscle — and retract backward the inferior hemorrhoidal vessels and nerves — clamping and tying bleeding vessels. (3) Recognize the bulb and central tendinous point of the Fig. 830.— Perineal Routes for Exposing Prostate Gland: — A, Transverse curved incision; B, Median perineal incision. perineum (from which latter the transverse perineal muscles extend outward), all exposed in the wound. Divide transversely the external sphincter just posterior to its junction with the accelerator urinas at the central tendinous point. Retract the bulb, transverse perineal muscles, and central tendinous point all forward. (4) Incise more deeplv still along the transverse curved incision — and expose the compressor urethra 1 muscle, surrounding the mem- branous urethra from the prostate behind, to the bulbous urethra in front. Above the compressor urethra? lies the inferior aspect of the prostate gland, surrounded by dense connective tissue continuous with the pelvic fascia and forming a portion of the capsule of the gland. (5) Draw this fascia downward and the rectum backward, and incise the capsule of the prostate transversely, thereby exposing the posterior surface of the prostate gland. (6) The index- finger is then inserted through the incised capsule and the process of enucleation 1 144 OPERATIONS UPON THE MALE GENITAL ORGANS. of the gland substance from below upward to its upper border is accomplished in the same general manner as in Alexander's operation (paragraph 6, page 1 145). (7) The vasa deferentia lie a little deeper — and the vesiculse seminales lie just to the outer sides of the vasa deferentia — both of which structures may be exposed and removed by this incision. (8) The prostate having been enu- cleated, a sound is passed through the entire urethra from the meatus — and especially the condition of the prostatic urethra examined. The urethra is not opened up, supposedly, by the perineal manipulations. (9) Drainage through the perineal wound is established — the lateral extensions of the wound being sutured from either end toward the median line. PROSTATECTOMY BY THE COMBINED METHOD BY MEDIAN SUPRAPUBIC AND MEDIAN PERINEAL INCISIONS — ALEXANDER'S OPERATION. Description. — The prostate is first exposed through a regular suprapubic incision, for the purpose of examining the gland and to enable downward dis- placement of the prostate during the perineal operation — and the gland is then removed, as far as required, through the median perineal incision. The ob- jects of the operation are to remove the obstructing portions of the prostate with the minimum damage to the bladder and urethra, and to furnish good drainage. The special method of Alexander involves the following anatomical features emphasized by its author (whose writing is largely followed in the sub- sequent description): — (a) The prostatic urethra consists of two parts; — (1) Vesical portion — which lies above the openings of the seminal ducts into the prostatic urethra; and which has thicker, stronger walls, permitting the freeing of the prostate without damage to the urethral mucous membrane. (2) Ure- thral portion — which lies below the openings of the seminal ducts into the prostatic urethra; and which has thinner, weaker walls, largely supported by prostatic tissue, (b) Fibrous trabecular extend from the central fibrous part of the prostate, behind the urethra, laterally outward to the fibrous capsule — dividing the lateral lobes into anterior and posterior parts by forming cleavage lines between them. (1) Anterior portion — placed in front of the fibrous trabecular, at the side of the urethra — which are the only parts of the lateral lobes whose hypertrophy causes interference with urination. (2) Posterior, or inferior, portion — placed posterior to the fibrous trabecular, posterior and inferior to the urethra and seminal ducts — the hypertrophy of which does not cause interference with urination, (c) Summary — the anterior portions of the lateral lobes, whose hypertrophy causes urinary obstruction, may, therefore, be enucleated en masse, without injury to the posterior portions or to the capsule. Preparation. — Bowels emptied. Bladder irrigated and then distended with 8 or 10 ounces. Pubic and perineal regions shaved. Position. — Patient as for suprapubic cystotomy, during the opening of the bladder — and in the lithotomy position during the perineal incision. Surgeon to patient's left at first — and then seated opposite the perineum. Assistant at first opposite surgeon and then to his right. Landmarks- — Those for suprapubic cystotomy (page 1096) and for median perineal cystotomy (page 1102). Incisions. — Same as for median suprapubic cystotomy (page 1096) and for median perineal section (page 11 23). (Fig. 830, B.) Operation. — (1) A median suprapubic cystotomy is done — making an PROSTATECTOMY BY THE COMBINED METHOD. 1145 opening into the bladder large enough to insert the index-finger. The lips of the bladder wound are temporarily sutured to the lips of the abdominal wound, by one or two stitches on each side. The intravesical portion of the prostate is examined. The bladder wound is then protected with gauze. (2) A fairly large, centrally grooved sound is then passed into the bladder from the meatus of the penis — and steadily held in the middle line by an assistant. (3) The median perineal section is made just as in Syme's operation (page 1123) — ex- posing the membranous urethra. Its floor is divided upon the grooved sound, from just posterior to the bulb in front, to the apex of the prostate gland be- hind. (4) As the sound is being withdrawn, the finger is passed into the bladder through the prostatic urethra, which is dilated by the finger. (5) The left index is introduced through the suprapubic wound into the bladder — and presses the prostate firmly toward the perineum, to bring it as fully into the perineal wound as possible. (6) The right index passes through the perineal wound into the prostatic urethra and begins the enucleation of the prostatic gland tissue — beginning by feeling along the lateral aspect of the prostatic urethra for the prominence caused by the inward bulging of the enlarged lateral lobe. The mucous membrane is broken through by the finger just in front of this eminence caused by the intrusion of the lateral lobe. The finger then works its way along the cleavage line of the fibrous trabecular, between the anterior and posterior parts of the lateral lobe. The obstructing part of the lateral lobe is separated with comparative ease laterally and posteriorlv from the posterior portion of the gland and capsule. The obstructing mass is then separated from the mucous membrane at the neck of the bladder and from the superior part of the prostatic urethra — aided by being grasped with forceps and drawn toward the perineal wound — while the left index in the bladder aids in guarding the mucous membrane against being torn. (7) The procedure just described upon one lateral lobe is repeated upon the other lateral lobe, if indicated. (8) If an enlarged "middle lobe" exist, it is pressed down, by the finger in the bladder, into the perineal wound, into the area formerlv occupied by the enucleated lateral lobes, when it is also enucleated in the same way from beneath the mucous membrane and without further injury to the mucous mem- brane — by sweeping the finger around through the space left by enucleating the lateral lobes. Thus the only part of the urethra which is torn during the opera- tion is that portion just anterior to the opening of the seminal ducts. And no injury is done to the bladder or urethral mucous membrane except that done to the mucous membrane of the prostatic urethra above the openings of the vesi- cular seminales. (9) Hemorrhage is controlled by hot water and gauze pres- sure. The bladder and perineal wounds are irrigated with hot salt solution. A stout rubber catheter is passed into the bladder through the perineal wound — and another rubber drainage-tube is inserted into the bladder through the suprapubic wound. The suprapubic bladder wound is sutured about the tube by Gibson's method (page nog) — .similar, in principle, to Kaders gastrostomy method. The perineal wound is partly closed by suture. The bladder is ir- rigated daily. The suprapubic tube is generally removed in four days and the perineal in seven — complete healing of both wounds being expected in about five weeks. Comment. — (1) The perineal hemorrhage may require temporary gauze packing. (2) Guard against injury to the rectum, especially during work near the anterior portion of the prostatic urethra. (3) In conjunction with the regular suprapubic cystotomy, some surgeons make the transverse curved perineal incision. The prostate is exposed through the suprapubic bladder wound and depressed through the bladder into the perineum. The capsule of 1 146 OPERATIONS UPON THE MALE GENITAL ORGANS. the gland is then divided transversely through the perineal wound and enu- cleated by this route. NOTE. Other operations upon the Penis, Urethra, Scrotum, Testes, Spermatic Cord, Vesicula? Seminales, Ejaculatory Ducts, and Prostate — as well as the operations upon the Epididymis, Vasa Deferentia, and Cowper's Glands — be- longing more particularly to special Genito-Urinary Surgery, will not be con- sidered here. CHAPTER VII. OPERATIONS UPON THE FEMALE GENITAL ORGANS. I. THE UTERUS. SURGICAL ANATOMY. (i) Uterus. Description. — Situated in pelvic cavity, between bladder and rectum, supported by its ligaments — its cervix projecting into superior part of vagina, downward and backward — and its base upward and forward. Communicates with fallopian tubes and vagina. Consists of serous, muscular, and mucous coats. Length, about 7.5 cm. (3 inches) — breadth, about 5 cm. (2 inches) — thickness, about 2.5 cm. (1 inch). Its divisions are — fundus, body, cervix, uterine cavity, internal and external os, and openings of fallopian tubes. Relations of Fundus and Body. — Anteriorly; covered by peritoneum and separated from posterior aspect of bladder by utero vesical peritoneal pouch (generally occupied by coils of intestine). Posteriorly; covered by peritoneum and separated from anterior aspect of rectum by recto-uterine pouch of peritoneum (in which are generally some coils of intestines). Lat- erally; broad ligaments; fallopian tubes (above); round ligament (below); ligaments of ovaries (behind). Superiorly; covered by peritoneum. Relations of Cervix Uteri. — (1) Intravaginal Portion; — surrounded by vagina, which extends higher posteriori}- than anteriorly — and presents opening of os externum. (2) Supravaginal Portion ; — one-half of entire cervix is supra- vaginal posteriorly, and two-thirds anteriorly. Presents opening of internal os. The relations of supravaginal portion are the following: — Anteriorly; bladder (areolar tissue intervening). Posteriorly; peritoneum of Douglas's pouch. Laterally; broad ligament; uterine vessels; ureters (which are about 1.3 cm., or ^ inch, away). (3) Vaginal Portion; zone of vaginal attachment — oblique — higher posteriorly than anteriorly. Relations of Peritoneum. — Invests whole of posterior aspect of uterus, but only upper three-fourths of anterior aspect. Ligaments. — Three pairs peritoneal — four pairs muscular (three of latter lying between folds of broad ligament and one between folds of posterior liga- ment). Two Lateral or Broad Ligaments (peritoneal): — duplication of peritoneum extending transversely outward from sides of uterus and vagina to sides of pelvis — the two peritoneal layers being continuous above at free bor- der, but diverging below and laterallv, and including various structures be- tween their folds (v. Broad Ligament, page 1148). Two Anterior, or Vesico- uterine (peritoneal) : — reflected from top of bladder to anterior wall of uterus, at junction of supravaginal cervix. Two Posterior, or Recto-uterine (peri- toneal): — peritoneal folds reflected backward from intraperitoneal part of cer- vix and vagina, on to second part of rectum — forming lateral boundaries of Douglas's pouch. Two Utero-sacral (muscular): — muscular bands lying 1147 1 148 OPERATIONS UPON THE FEMALE GENITAL ORGANS. between folds of the posterior or recto-uterine ligaments. Extend from second and third pieces of sacrum forward and downward to sides of uterus at junc- tion of body and supravaginal cervix (opposite os internum), crossing the sides of the rectum opposite the junction of its first and second parts. Two Utero- pelvic Ligaments (muscular) : — muscular expansions, extending between folds of broad ligaments, from fascia over obturator internus muscles to sides of uterus and vagina, surrounding the utero-vaginal vessels and nerves. Two Utero-ovarian Ligaments (Ligaments of the Ovaries) (muscular) : — pro- longations of uterine muscular fibers in the form of round cords, extending between folds of broad ligaments, from upper angles of uterus to inner aspects of ovaries. Two Round or Utero-inguinal Ligaments (muscular) : — fibro- muscular cords, 10 to 12.5 cm. (4 to 5 inches) long, placed between folds of broad ligaments, extending from superior angles of uterus through inguinal canals to labia majora (v. Round Ligaments, page 1149). Arteries. — Ovarian, of abdominal aorta — carried into broad ligament by infundibulo-pelvic ligament — divides into tubal artery and ovarian artery proper. Uterine, of internal iliac — runs downward along pelvic wall to base of broad ligament — thence inward near floor of pelvis toward cervix, which it reaches at junction of vagina, passing in front of ureter — and runs up side of cervix and uterus between folds of broad ligament, communicating with oppo- site uterine and branches of ovarian. Veins. — Correspond with arteries. Veins from ovarian plexuses empty — right, into inferior vena cava — left, into left renal. Veins from uterine plexuses empty into internal iliac veins. Lymphatics. — Those from body empty into lumbar glands — and those from cervix into pelvic glands. Nerves. — From third and fourth sacral — and from hypogastric and renal plexuses. (2) Broad Ligament.* Description. — Duplicative of peritoneum, extending transversely from sides of uterus and vagina outward to sides of pelvic wall — the two layers being continuous superiorly at their free border — and diverging laterally and infe- riorly to envelop various structures (v. i.). Relations. — Superior or free Border (mesosalpinx): — summit of dupli- cative, where it envelops fallopian tube. Extends from side of uterus toward, pelvic wall, to beyond the fimbriated extremity of fallopian tube. Infundibulo- pelvic ligament — that portion of superior border of broad ligament between fimbriated extremity of fallopian tube and lower attachment of broad ligament — a concave, rounded border — the ovarian vessels being conveyed in this liga- ment. Inferior Border : — attached to levator ani muscle and recto-vesical fascia. Ureters, vessels, and nerves pass through the subperitoneal areolar tissue between its layers. Internal Border : — attached to lateral walls of uterus and vagina. Utero-vaginal vessels and muscular bands pass between the two lamina?. External Border : — In contact with obturator fascia. Transmits uterine vessels and round ligament. Structures between Two Layers of Broad Ligament. — Ovary — pro- jects from posterior lamina. Ligament of ovary — from angle of uterus to lower or internal aspect of ovary. Fallopian tube — in upper free margin. Round ligament — forms a ridge beneath anterior lamina, on its way to inguinal canal. Parovarium (fetal relic) — between ovary and outer part fallopian tube. Duct of Gaertner; hydatid of Morgagni; small cysts — all fetal relics. Uterine, * Here described because involved in Hysterectomy. SURGICAL ANATOMY OF THE VAGINA. 1149 ovarian, and funicular vessels; lymphatics; and uterine plexus of nerves. Sub- peritoneal fatty areolar tissue. Involuntary muscular fibers — from obturator fascia to sides of uterus and vagina. Broad ligament divides pelvic cavity into : — Anterior part — containing bladder, urethra, and vagina; — Posterior part — containing rectum. Boundaries of Douglas's Recto-uterine Pouch. — Anteriorly; posterior wall of uterus, supravaginal cervix, upper fourth of vagina. Posteriorly; rectum, sacrum. Laterally; sacro-uterine ligaments. Superiorly; small in- testines. (3) Round Ligaments.* Description. — Two flat, cord-like bundles of muscular, fibrous, and areo- lar tissue, vessels and nerves, continuous with uterine fibers, attached to supe- rior angles of uterus just below and in front of fallopian tube — each passes upward, outward, and forward between layers of broad ligaments to pelvic wall, raising the anterior layer of broad ligament into a fold — curves around deep epigastric artery on inner side of external iliac artery — enters internal abdominal ring — passes through inguinal canal — emerges from external ring — its fibers then becoming lost in tissues of labia majora and mons veneris. May be accompanied by an invagination of peritoneum, the canal of Nuck (analogous to pouch of peritoneum accompanying descent of testes), which may remain patulous. Receives fibers in transit through inguinal canal — and gives off few fibers to pillars of ring. Average length — 10 to 12.5 cm. (4 to 5 inches). Supplied by funicular branch of superior vesical of internal iliac. (4) Vagina. Note. — Vagina is here described in connection with Vaginal Hysterectomy. Description. — Extends from orifice below through an opening in tri- angular ligament, to neck of uterus above— completely surrounding the cervix. Extends upward much further beyond posterior lip of uterus (about 2 cm., or f inch) than beyond anterior lip. Length of anterior wall, about 6.3 cm. (2^ inches), — posterior wall, about 9 cm. (3^ inches). Fornices, anterior and posterior — consist of angles of reflection of vaginal on to uterine mucous mem- brane. Transverse section of vagina is H-shaped, when collapsed. Struc- ture — fibrous, muscular, and mucous coats. Relations. — Anteriorly; Base of bladder — loose subperitoneal fascia intervening. Urethra — subperitoneal areolar tissue intervening in upper one- third, but closely connected in lower two-thirds. Ureters — which enter blad- der 3.2 cm. (i| inches) below level of os uteri. Posteriorly ; Rectum — Doug- las's peritoneal cul-de-sac intervening for about 2.5 cm. (1 inch) above — and subperitoneal areolar tissue intervening lower. Perineal body — below (sepa- rating vagina and rectum). Laterally: — Vaginal branch of uterine artery. Subperitoneal venous plexus at base of broad ligament. Ureters crossing upper third obliquely. Levatores ani, in relation with lower two-thirds. Arteries. — Vaginal, internal pudic, vesical, and uterine branches of in- ternal iliac; external pudic branches of femoral. Veins. — Correspond with arteries — but form vaginal plexuses on each side of vagina. Lymphatics. — Empty chiefly into pelvic — some into inguinal glands. Nerves.- — From fourth sacral and pudic nerves — and from hypogastric plexus. * Here described because involved in Hysterectomy. 1150 OPERATIONS UPON THE FEMALE GENITAL ORGANS. Fig. 831. — Diagram Showing Some of the Relations of the Uterus: — A, Uterus; B, Os uteri; C, Vagina ; D, Ovary; E, Utero-ovarian ligament; F, Fallopian tube; G, Round ligament; H, H, Ureters; I, Ovarian artery; J, Internal iliac artery; K, Uterine artery; L, L, L, Vaginal arteries; M, Infundibulo-pelvic portion of broad ligament. The position of the ligatures about the vessels and broad ligament is shown (here shown as interlocking, which is unessential) as applied in total abdominal hysterectomy. SURFACE FORMS AND LANDMARKS. Utero-vesical fold of peritoneum is about on a level with the internal os uteri. Utero-rectal fold of peritoneum is reflected for nearly 2.5 cm. (1 inch) on the posterior wall of the vagina. The cervix may be divided into three zones: — the lower third is intra- vaginal; — middle third is, anteriorly, supravaginal (united to base of bladder) — and intravaginal posteriorly; — upper third is supravaginal — united to blad- der anteriorly — and in relation with peritoneum posteriorly. The ureters, in the case of a normal uterus, with empty bladder, lie nearly 1.3 cm. (J inch) from the cervix. They pass parallel with the cervix and nearly 1.3 cm. (J inch) away — running through the plexus of uterine veins and under- neath the broad ligament — and, continuing near the vagina, run between the vagina and bladder, and enter the bladder about on a level with the center of the anterior wall of the vagina. The uterine arteries run over them, upon their inner aspect. For further description of the female ureter, see page 1074. For the course of the uterine and ovarian arteries, see page 1148 (also see Fig. 831, H, H). INSTRUMENTS. See those given under Abdominal Section (page 801) — in addition to which, may be mentioned: — vaginal retractors; broad ligament clamps; vulsella for- ceps; pedicle clamps; pedicle needles, straight and laterally curved; aneurism- needles, straight and laterally curved; tenaculum-forceps; long artery-clamp forceps; long scalpels; long scissors, straight and curved; long forceps, toothed and dissecting; uterine sound; urethral catheters. PARTIAL ABDOMINAL HYSTERECTOMY. PARTIAL ABDOMINAL HYSTERECTOMY, TOGETHER WITH REMOVAL OF OVARIES AND TUBES. I PARTIAL ABDOMINAL HYSTERO-SALPINGO-OOPHORECTOMY.) Description. — The supravaginal portion of the uterus, together with the ovaries and tubes, are removed through a median abdominal incision. In Partial Abdominal Hysterectomy the supravaginal portion of the uterus only is removed, and the vagina is not opened. In Total Abdominal Hysterectomy the entire uterus, including the cervix, is removed, and the vaginal vault is opened. The ovaries may or may not be removed, in either case — thev should be left when possible. Preparation. — Bowels and bladder emptied. Median line and pubis shaved. Position. — An upward tilt of patient's pelvis, of about 30.5 cm. (12 inches), in the Trendelenburg position aids by causing the intestines to fall awav from the uterus. Surgeon stands on patient's right during most or the entire opera- tion. Assistant opposite. Landmarks. — Median line; navel; symphysis pubis; position of bladder and ureters. Incision. — In median line, extending from umbilicus downward towards symphysis pubis. It may be extended above the umbilicus, passing directly through the navel, or may pass around it to the left. It averages from 10 to 15 cm. (4 to 6 inches) in length. Operation. — (1) Median Abdominal Section: — Perform a median abdo- minal section in the usual manner — control hemorrhage — retract the edges of the abdominal wound — displace the small intestines and the sigmoid coil of the large intestine and keep them out of the pelvis with gauze pads, aided bv the Trendelenburg position. Examine the contents. of the pelvic cavity and learn the condition of the organs and the presence and extent of adhesions. (2) Freeing Uterus, Tubes, and Ovaries from Adhesions: — The weakest adhesions are separated by the fingers — firmer adhesions by scissors — the most extensive are divided between double chromic gut ligatures, as near the uterus as possible. The fundus of the uterus is seized with vulsella and drawn toward the pubis, and the rectum displaced backward, while freeing the posterior aspect — then to the right, while freeing the left aspect of the uterus, ovary, tube, and broad ligament, — and to the left while freeing the right aspect of the same structures. Dense adhesions are sometimes more easily broken up by following down the fallopian tubes and working up under the tube and ovary, than from above downward. Free more closely to the organ to be removed than to the struc- tures to be left. A sound in the uterus will often aid in outlining the cleavage- lines of dense adhesions, along which separation must be accomplished by dis- section with knife and forceps, or scissors. If completion of the freeing of adhesions in the usual way offers insuperable difficulties, it is sometimes best to stop and ligate the ovarian vessels and round ligament (in the manner and order described below) and divide the upper part of the broad ligament, making it possible to reach and free the tube and ovary from in front. (3) Enuclea- tion : — (a) Ligate the left ovarian vessels with silk, at the outer end of the broad ligament, beneath the sigmoid colon — either dividing them between two silk ligatures, or between a clamp on the uterine and a ligature upon the pelvic side — cutting obliquely across the broad ligament to the round ligament, (b) The round ligament is similarly ligated with chromic gut, or clamped and ligated, and divided about 1.3 cm. (h inch) from the uterus, (c) The vesico-uterine 1152 OPERATIONS UPON THE FEMALE GENITAL ORGANS. peritoneum is detached from the uterus, by first incising the peritoneum along the concave line of its reflection, from left round ligament to right round liga- ment. While the uterus and adnexa are drawn up and to the opposite side, the vesical peritoneum is pushed off of the cervix with gauze or sponge grasped in a holder — thus separating bladder from cervix and baring the latter for about 3 cm. (ij inches) and exposing the uterine vessels, (d) Grasp the cervix be- tween the left index and thumb, and verify its lower termination and the site of the uterine arteries on each side. Ligate the left uterine vessels by silk liga- ture carried under them upon a curved aneurism-needle, passing from before backward and near to the cervix — but not carried too deeply alongside of the cervix, for fear of including the ureter. Place a clamp, or a second ligature, on the uterine side, and divide between them, (e) Amputate the cervix trans- versely, just above the vaginal attachment — so as to leave the stump of the cervix cupped antero-posteriorly and laterally. Protect the cut uterine canal with gauze from emptying its contents into the wound site. Cauterize the cervical canal — and stuff with gauze down into the vagina, (f) The uterus is drawn upward and to the opposite side — the right uterine vessels are exposed and are ligated and divided as on the left (or may be clamped at first and tied later), (g) The uterus is still further drawn up and to the opposite side — and the round ligament ligated as on the left and divided (or may be first clamped, and ligated later), (h) Cut obliquely across the broad ligament to the right ovarian vessels in the infundibulo-pelvic ligament — ligating and dividing them (or clamping first, and ligating later). The enucleation is now complete — and there is left a crescently denuded area in the pelvic cavity, broadest at its center, opposite the cervical stump, and coming to points at the brim of the pelvis, on either side, where the ovarian vessels were ligated. (4) Closure of the Cer- vical Canal: — The cupped surface of the cervical stump is sutured with chro- mic gut in such a way as to approximate the anterior and posterior aspects by from four to six interrupted sutures — entering the anterior lip exclusive of the vesical peritoneum, and emerging from the anterior lip anterior to the cervical canal — then passing over the cervical canal and entering the posterior lip just behind the cervical canal and emerging on the posterior peritoneal aspect of the cervical stump — thus closing the cervical canal, approximating the lips of the cervical stump, and controlling hemorrhage. The sutures are cut short and the stump dropped back into place. (5) Repair of the Pelvic Floor: — Having seen that all bleeding vessels are ligated (with chromic gut) — the denuded sur- faces are entirelv covered in, by suturing together the peritoneal surfaces with continuous gut — uniting the edges of the anterior peritoneal layer of the broad ligament and reflected vesical peritoneum in front, to the edges of the posterior peritoneum behind — beginning and ending at the stumps of the ovarian vessels — and suturing the vesical peritoneum opposite the cervical stump to the pos- terior peritoneum which has been included in the stitches which closed in the cervical canal. (6) Closure of the Abdominal Wound: — The abdominal wound is closed as usual — without drainage, unless specially indicated. Comment. — (1) The broad ligament is everywhere divided between liga- tures. Where the ligatures for the ovarian vessels, round ligament, and uterine vessels, above mentioned, do not extend entirely across the broad ligament, in- tervening separate ones are placed. (2) Especially guard against injuring the ureters while ligating the uterine arteries (see Anatomy, pages 1074 and 1 150). TOTAL VAGINAL HYSTERECTOMY. 1153 TOTAL ABDOMINAL HYSTERECTOMY, TOGETHER WITH REMOVAL OF OVARIES AND TUBES. (TOTAL ABDOMINAL HYSTERO-SALPINGO-OOPHORECTOMV.) Description. — The entire uterus, including the cervix, as well as the ovaries and tubes, are removed, and the vaginal vault opened — all through a median abdominal section. The ovaries should be left when possible. Preparation — Position — Landmarks — Incision. — As for Partial Abdo- minal Hysterectomy. Operation.— The technic is so similar to that for Partial Abdominal Hysterectomy that only those points will be mentioned in which the technic of Total Abdominal Hysterectomy differs from the operation just described. (1) The lips of the cervix are closed with strong silk sutures applied through the vagina, before the operation is begun — to protect the abdominal cavity from infection. The vagina is packed with gauze. (2) When the peritoneal reflection has been pushed away from the supravaginal part of the uterus, and the uterine arteries tied, as described in Partial Hysterectomy (clown to 3 — d, page 1 15 1) — instead of cutting through the cervix transversely, the upper limits of the vagina, anteriorly and posteriorly, are determined — and the vaginal vault is then opened in front, about 1 to 2 cm. (f to f inch) below the vaginal attachment of the uterus, by means of the thermocautery or scissors — aided by a vaginal sound passed into the anterior fornix, if necessary — the incision being continued around each side until the cervix is freed. The margin of the cut vagina isligated. pari passu, with chromic gut at a right angle to its long axis, using interlocking ligatures if necessary — the sutures being placed parallel with and at a short distance from its margin. The sites of the ligatures re- quired in total abdominal hysterectomy are shown in Fig. 831. All exposed areas are protected with gauze. (3) The anterior and posterior edges of peritoneum bordering the denuded area are sutured with continuous gut in a transverse line from one pelvic brim, across the pelvic floor, to the opposite pelvic brim, thus repairing the floor of the pelvis. The peritoneal edges are closed over the vaginal opening — but the opening in the vaginal vault is not sutured together — but, instead, a loose gauze pack is pushed through the opened vaginal vault up to the sutured overlying peritoneum. (4) The abdominal wound is closed in the ordinary manner. Comment. — (1) If ureteral catheters are passed into the ureters prior to the operation, the positions of the latter are made more evident during opera- tion. (2) The uterine arteries may be ligatecl further back in the pelvis, nearer their origin from the anterior branches of the internal iliacs — first assuring one's self of the position of the ureters by [ticking up the uterine artery and parallel tissues between the index and thumb — and then allowing them to slip out of the grasp. If this be done, the artery is caught and drawn up and the dis- section of the connective tissue is carried on down to the uterus. (3) Veins, large single ones, and in plexuses, are apt to be encountered in the broad liga- ment and on the pelvic floor. TOTAL VAGINAL HYSTERECTOMY. Description. — Removal of entire uterus through the vault of the vagina — the incision being made from within the vagina. Indicated chiefly for malignant growth of the cervix, or for malignant disease limited to cervix and fundus. i '54 OPERATIONS UPON THE FEMALE GENITAL ORGANS. Preparation. — Pubis, labia, and perineum shaved. Vagina cleansed. Bowels and bladder emptied. Position. — Patient supine, at end of table, in lithotomy position. Surgeon sitting at foot of table. Assistant to surgeon's right, retracting posterior vagi nal wall with large Sims or other retractor — while the lateral vaginal walls are retracted by lateral vaginal retractors. Landmarks. — Anterior and posterior vaginal fornices; known position of ureters and uterine vessels. Operation. — (i) The lips of the cervix are caught and drawn down with Fig. 8^52. — Vaginal Hysterectomy: — I. A, Sutures closing lips of uterus and serving as trac- tion-loops, by which uterus is drawn out of vagina ; B, Knife making incision through mucous mem- brane around cervix, at level with vaginal vault; C, Irrigator washing away blood. Vaginal walls are well retracted by four retractors. (Modified from Kelly.) vulsella, or tenaculum-forceps — and are sutured together with strong silk (to prevent escape of contents). The silk ligatures may be left as long traction- loops. The uterus is thus drawn well down into the outlet (by forceps or loops) — while the vaginal walls are retracted downward and outward, as de- scribed above (Fig. 832). (2) With a knife, or sharp curved scissors, an in- cision is made entirely around the cervix, passing through the thickness of the vaginal vault down upon the substance of the cervix. (3) With the right index, the cellular tissue plane is opened up in front (between uterus TOTAL VAGINAL HYSTERECTOMY "55 and bladder) and behind (between uterus and Douglas's cul-de-sac) — by push- ing up and peeling back the tissues with the pulp of the finger always directed against the cervix, to prevent the fingers from slipping off violently in the wrong direction (Fig. 833). This separation is done anteriorly and posteriorly — but not done laterally, where the vessels enter from the broad ligament. Posteriorly, Douglas's cul-de-sac is recognized by a slight amount of fluid present within its cup-like cavity and by the smooth surfaces gliding over each other. This is caught with forceps, drawn down and incised with sharp Fig. 833 —Vaginal Hysterectomy :— II. Index-finger opening up cellular tissue plane between uterus and bladder, anteriorly ; and between uterus and Douglas's cul-de-sac, posteriorly. (Modified from Kelly.) scissors to a slight extent, the opening being increased to the broad ligaments on each side by two fingers introduced and separated. Anteriorly, the sepa- ration is continued until the anterior vesico-uterine peritoneal fold is reached — ■ which is recognized by its gliding surfaces — and which is drawn down with forceps and incised with sharp scissors to a limited extent — the opening being increased to the broad ligament on each side by fingers introduced and sepa- rated, guided, if necessary, by a sound in the bladder. The peritoneal cavity is thus opened in front and behind and the uterus is left hanging from the broad 1156 OPERATIONS UPON THE FEMALE GENITAL ORGANS. ligaments (4) The broad ligaments are now tied off. The uterus is drawn well down and to the side opposite that upon which the ligature is to be passed, while the corresponding vaginal wall is retracted. The left index-finger is passed in through the posterior opening behind the broad ligament and near the cervix. A strong silk ligature, carried by a laterally curved aneurism- needle, is passed from before backward, and from above downward, and about 1 cm. (f inch) to the outer side of the cervix, and including about 1 cm. (f inch) of broad ligament tissue (Fig. 834). The ligature is firmly tied and the broad ligament included is immediately divided with scissors, rather nearer the Fig. 834. — Vaginal Hysterectomy: — III. Ligating off the left broad ligament. (Modified from Kelly.) uterus — being careful not to make the division higher than the ligature has gone. Two or three ligatures can generally be applied to one side before plac- ing the same number on the opposite side, during downward traction of the uterus to the side where the first ligating was done (always drawing it to the side opposite the one upon which the greatest exposure is wished). Or the ligating may be continued up one side as far as convenient, even to the cornu of the uterus, and then upon the other side. The uterine vessels are generally included in the second or third ligature, being found close to the cervix uteri near the os internum. The position of the uterine artery should be determined TOTAL VAGINAL HYSTERECTOMY. "57 as soon as the opening through the posterior fornix is made. Especial care is here taken to avoid the ureter (see Surgical Anatomy, pages 1074 and n 50). When the ligating and division have progressed nearly to the cornu of that side, the finger can be passed in behind and hooked over the remaining broad liga- ment, fallopian tube, and round ligament, and these brought down and ligated — this last ligature being tied particularly well and the tissues cut at a distance. Often it is easier to alternate — by tying two or three ligatures on one side — then on the opposite, and so on. 'When all of one side and nearly all of the oppo- site broad ligament has been tied, the finger may be introduced and hooked around the fundus of the uterus and the organ delivered sidewise — the remain- Fig. 835.— Vaginal Hysterectomy :— IV. Delivering the uterus by means of a finger introduced from behind and below. The right broad ligament has been entirely ligated and cut. (Modified from Kelly.) ing ligatures being applied either from below upward or from above downward, as most convenient, while the organ lies in the vulval fissure (Fig. 835). Or, after progressing a part of the way, the fundus may be brought down, carrying the cervix up into the pelvic cavity and doubling the broad ligament upon itself — and thus applying the remaining ligatures in the reverse direction. But it is better, and more surgical, to deliver the uterus in its normal axis — continu- ing the ligating and division upon the two sides as first described. (5) The right and left groups of sutures are separated and held aside and the lower pel- vic cavity irrigated and mopped or sponged out. Each line of broad ligament ligatures must be inspected — suspicious ones replaced — and additional ones u?8 OPERATIONS UPON THE FEMALE GENITAL ORGANS. applied where indicated. The ligatures of each side are tied together in one group and cut near the knot, closely within the vagina. (6) The cut edge of the vesico-uterine peritoneal fold in front is sutured at its middle with gut to the middle of the cut edge of the utero-rectal peritoneal fold behind — either by a single mattress suture bringing the central portions of the two peritoneal folds together, or by a continuous suture bringing together the central portion — leaving, in either case, a gap at either side for possible drainage in cases where the vaginal vault is not sutured, or only sutured in part. Where the vaginal vault is entirely sutured, the two edges of the peritoneum should be sutured together throughout. (7) The vaginal vault may be left entirely unsutured — Fig. 836.— Vaginal Hysterectomy: — V. Peritoneal and vaginal suturing; A, Vesico-uterine peritoneal fold ; B, Utero-rectal peritoneal fold. A transverse line of interrupted sutures unites the central portion of these folds. C, C, Vessels and broad ligament ligated. D, Vault of vagina ; E, Sutures approximating cut edges of anterior and posterior vaginal fornix, thus repairing dome of vagina ; F, Each lateral vaginal suture also passes through broad ligament stump, and thus brings it into lip of vaginal wound. (Modified from Kelly.) in which cases it is packed loosely with gauze, and the vagina is then packed rather snugly. In other cases, which method is to be preferred, the vaginal vault is entirely closed by a line of continuous or interrupted gut sutures bring- ing the cut edges of the fornices together and crossing the dome of the vagina from before backward. But at each side the lower portion of the ligated broad ligament is caught and drawn down into the upper part of the vagina, and the sutures which pass through the lips of the vaginal vault also pass through and include some of the broad ligament stump — the stumps on the two sides thus projecting into the vagina, thus insuring drainage. (Fig. 836.) SURGICAL ANATOMY OF THE OVARIES. 1159 Comment. — (1) Up to the opening of the peritoneal cavity, blood is re- moved by constant irrigation through a special glass tube held just above the vulva, — after opening the peritoneum, by gauze mops. (2) Catheters passed into the ureters before the operation enable the position of the ureters to be readily made out and guarded during operation. (3) If it be found, during operation, that it is desirable to remove the tubes and ovaries, ligatures are placed on the outer side of these. These ligatures are somewhat more difficult to apply and tighten than the others. (4) Especially guard the ureters near the cervix and behind the uterine arteries, while working near the cervix. II. THE OVARIES. SURGICAL ANATOMY. (1) Ovaries. Description. — Placed one on each side of the pelvis — connected with the posterior layer of the broad ligament, posterior and inferior to the fallopian tubes. Rests against the lateral wall of pelvis, with long axis nearly vertical in erect position of body (His). Length, about 3.8 cm. (ih inches) ; — breadth, about 2 cm. (f inch); — thickness, about 1.3 cm. (J inch). Position of ovary corresponds with a point about 5 cm. (2 inches) internal to the anterior superior iliac spine. In the position and relations given by His, the fallopian tube and fimbria almost completely envelop the ovary. In structure, the ovary con- sists of peritoneal serous covering and stroma. Relations. — Mesial Surface; — Is free. Fimbriated extremity of fallo- pian tube is in contact to various extent. Mesosalpinx is also in relation. Coils of jejunum and ileum often to inner side of right ovary. Sigmoid colon may be to inner side of left ovary. Lateral Surface ; — Lies in fossa ovarii, a peritoneal depression upon the lateral pelvic wall, generally just below the external iliac vessels — with the ureter often bounding the fossa below and be- hind. Posterior Border; — Is free. Directed toward rectum. Partly em- braced by fimbriated end of fallopian tube. Anterior Border; — Furnishes attachment to broad ligament. Presents hilum (between two layers of broad ligament) for entrance of vessels and nerves. Fallopian tube. Upper Ex- tremity ; — Ovarian fimbria of fallopian tube are attached. Ligamentum sus- pensorium ovarii (ligamentum infundibulo-pelvicum) passes from brim of pelvis to upper extremity — conveying the ovarian vessels and nerves. Lower Extremity ; — Ligament of ovary — from angle of uterus to lower or inner end of ovary. Arteries. — Ovarian of abdominal aorta; anastomotic branches of uterine and internal iliac. The ovarian artery, crossing brim of pelvis, enters broad ligament and runs in infundibulo-pelvic ligament — and, passing between layers of broad ligament, runs to the ovary and upper part of uterus. Veins. — Follow the arteries — and form the pampiniform plexus. Nerves. — From ovarian plexus; from pelvic plexus; from uterine nerves. Lymphatics. — Empty into prevertebral glands, in front of aorta and vena cava. (2) Fallopian Tubes. Description. — Average length, 10 to 12.5 cm. (4 to 5 inches). Begin at superior angle of uterus and extend — enclosed in upper free border of the u6o OPERATIONS UPON THE FEMALE GENITAL ORGANS. broad ligament — to the sides of the pelvis, ending in the fimbriated extremities, which are in relation with the corresponding ovaries. After enveloping the fallopian tubes, the layers of the broad ligament are continued down to the ovary. The tubes are made up of — the isthmus (inner third) — ampulla (from isthmus to neck) — neck (or ostium abdominale) — and fimbriated extremity. They are composed of serous, muscular, and mucous coats. Course and Relations. — From the superior angles of the uterus, the}' run nearly horizontally outward, for about 1.3 to 2.5 cm. (J to 1 inch) to the pelvic wall — thence ascend, sometimes tortuously, anteriorly to their ovaries — then curve backward over the ovaries, lying internal to the suspensory liga- ment — and end by passing downward along the inner and posterior borders of the ovaries. Ileo- jejunal convolutions are sometimes above and to inner side of right fallopian tube. Sigmoid rectum is sometimes in the same relation to the left tube. Artery. — Tubal branch of ovarian. OVARIECTOMY, OR OOPHORECTOMY, WITH REMOVAL OF FALLO- PIAN TUBE. (SALPINGO-OVARIECTOMY, OR SALPINGO-OOPHORECTOMV.) Description. — Ovariectomy (or, less correctly, Ovariotomy) consists in the removal of the ovary through, generally, an abdominal section. When the fallopian tube is simultaneously removed, the operation becomes Salpingo- ovariectomy, or Salpingo-oophorectomy. The ovary may be removed alone, or the tube may be removed alone. In the operation here described, the following structures will be removed: — entire ovary, entire fallopian tube, part of utero-ovarian ligament, and the arteries, veins, lymphatics, and nerves belonging to these structures. Preparation. — Median line and pubis shaved. Bowels and bladder emptied. Position. — Patient supine near edge of table at first — and subsequently elevated into slight Trendelenburg position after the abdomen is opened. Sur- geon on side of operation — or always on patient's right, independently of ovary operated upon — or may prefer to cut upward, and then stands on patient's left in both cases. Assistant opposite. Landmarks. — As for median abdominal section (page 801). Incision. — In median line — about 5 to 10 cm. (2 to 4 inches) in length — extending upward from a point about 2.5 cm. (1 inch) above the symphysis pubis. Operation. — (1) Perform a median abdominal section — control hemor- rhage — and retract lips of abdominal wound. (2) Pass the first and second fingers into the wound, with the back of the hand to the abdomen — follow down the under surface of the abdominal parietes to the symphysis — thence down on to the bladder and uterus — and thence out laterally over the superior cornu of the uterus, with the palm of the hand still downward, to and along the broad ligament — along the posterior superior aspect of which the fallopian tube is found — and, just posterior to the tube, the ovary. These structures are drawn toward the median line, into an accessible position in the abdominal wound. (3) The ovarian artery and veins are first tied, with silk — the ligature being carried, upon a laterally curved aneurism-needle, through the clear space of the broad ligament and tied over the top of the infundibulo-pelvic ligament, outside of the fimbriated end of the fallopian tube, and close to the brim of the OVARIECTOMY. 1161 pelvis (Fig. 837). (4) The utero-ovarian ligament, lying behind the fallopian tube, is ligated with chromic gut, rather nearer the uterus, carried upon a later- ally curved aneurism-needle. (5) The inner end of the fallopian tube and the upper free part of the broad ligament are ligated with silk near the horn of the uterus — which ligature also controls the branches from the uterine artery. (6) The structures are now removed by cutting through the broad ligament well within the outer ligature of the ovarian vessels — and cutting through the fallo- pian tube and ovarian ligament well to the outer side of their ligatures — and Fig. 837.— Ovariectomy, with Removal of Fallopian Tube: — A, Uterus; E, Aneurism- needle carrying ligature around utero-ovarian ligament; C, Ligature passing through broad liga- ment and surrounding fallopian tube and ovarian artery ; D, Ligature passing through broad ligament and over top of infundibulo-pelvic ligament and surrounding ovarian artery; E, Round ligament; F, Bladder ; G, Colon. carrying the incision through the broad ligament well below the hilum of the ovary. Any doubtful ligature is strengthened, and any bleeding point is sur- rounded by an additional gut ligature. (7) The edges of the anterior and pos- terior layers of the broad ligament, left by the removal of the above structures, are sutured together with gut. The patient is lowered to the horizontal posi- tion — and the intestines and omentum are replaced. (8) The abdomen is closed, as after median abdominal section. Comment. — (1) The main danger in the operation is from uncontrolled n62 OPERATIONS UPON THE FEMALE GENITAL ORGANS. hemorrhage. Where there is any danger of a ligature slipping, one end of the ligature may be carried through neighboring tissue and knotted to the oppo- site end. (2) The non-vascular portion of the broad ligament between the ligatures of the special structures may be left free — or, if ligated, should be so ligated as not to bind the pelvic and uterine aspects of the broad ligament together. NOTE. Other operations upon the Uterus and Ovaries, and the operations upon the Fallopian Tubes, Broad Ligaments, Round Ligaments, Labia Majora and Minora, Clitoris, Hymen, Glands and Ducts of Bartholin, Bulbi Vestibuli, Vagina, Female Perineum, Female Bladder, Female Urethra, and Female Ischio-rectal regions — all belonging more particularly to special Gynecological Surgery, will not be considered here. CHAPTER VIII. OPERATIONS FOR HERNIAE. I. INGUINAL HERNIA. SURGICAL ANATOMY. The structures encountered in the operations for inguinal hernia? and those in the immediate neighborhood of the site of operation, will be here briefly described — chiefly in the order encountered, from without inward. Superficial Fascia. — Divisible into two layers, between which lie super- ficial arteries, veins, lymphatics, and nerves of the inguinal region. Superficial Layer of Superficial Fascia. — Continuous with superficial fascia of abdomen, thigh, penis, scrotum, labia, and perineum. Superficial Arteries. — Superficial epigastric branch of femoral. Super- ficial circumflex iliac of femoral. Superficial external pudic of femoral. Superficial Veins. — Accompany arteries and end in internal saphenous vein. Superficial Lymphatics. — Superior group, along Pouparfs ligament. Inferior group, around saphenous opening. Superficial Nerves. — Hypogastric branch of Iliohypogastric, Ilio-inguinal. Deep Layer of Superficial Fascia (Scarpa's Fascia). — Attached to linea alba — continuous with superficial fascia over trunk — connected with fascia lata — helps form dartos — continuous with deep layer of superficial fascia of perineum. External Oblique Muscle. — Pcupart's Ligament. — That portion of aponeurosis of external oblique extending from anterior superior iliac spine to spine of os pubis. Gimbernat's Ligament. — That portion of aponeurosis of external oblique which is reflected from Poupart's ligament, at spine of os pubis, along the pectineal line. Triangular Ligament. — That portion of aponeurosis of external oblique which is reflected from Gimbernat's ligament, at the pectineal line, upward and inward beneath the spermatic cord and behind the internal pillar of the ex- ternal ring and in front of the conjoint tendon, to the linea alba, where it inter- laces with its fellow of opposite side. External or Superficial Abdominal Ring. — A triangular opening in aponeurosis of external oblique immediately above and just external to crest of os pubis. Bounded, interiorly, by crest of os pubis, — Superiorly, by inter- columnar fibers, strengthened by intercolumnar fascia, — Internally, by inner or superior pillar, — Externally, by outer or inferior pillar. Transmits sper- matic cord in male, and round ligament in female. Internal Oblique Muscle. — Conjoint Tendon of Internal Oblique and Transversalis. — Inserted into crest of os pubis and pectineal line, directly behind external abdominal ring. Cremaster Muscle. — Corresponds with inferior fibers of internal oblique 1163 1164 OPERATIONS FOR IIKRM.K. — arising from center of Poupart's ligament, where they are continuous with the interno-inferior aspect of that muscle — descend along external and anterior aspect of spermatic cord — curve around testicle — and, ascending along inner aspect of cord, are inserted into crest of os pubis and anterior surface of sheath of rectus. The fascia cremasterica increases the strength of these fibers. Transversalis Muscle. — Transversalis Fascia. — Inguinal Canal. — Transmits spermatic cord in male — and round ligament in female. Extends obliquely downward and inward for about 3.8 cm. (1^ inches) — parallel with and slightly above Poupart's ligament — beginning at the internal abdominal ring and ending at the external abdominal ring. Anterior boundaries, — skin; superficial fascia; aponeurosis of external oblique (through- out) ; internal oblique (outer third). Posterior boundaries, — triangular liga- ment; conjoint tendon of internal oblique and transversalis; transversalis fascia; subperitoneal fat; peritoneum. Superior boundaries, — curved fibers of in- ternal oblique and transversalis. Inferior boundaries,- — junction of fascia transversalis and Poupart's ligament. Internal or Deep Abdominal Ring. — An oval opening lying in the trans- versalis fascia, half-way between the anterior superior iliac spine and symphy- sis pubis, and about 1.3 cm. (^ inch) above Poupart's ligament. Superior and External boundary, — curved fibers of transversalis. Inferior and Internal boundaries, — deep epigastric vessels. Transmits spermatic cord in male — and round ligament in female. Infundibuliform process of fascia transversalis strengthens its opening. Subperitoneal Areolar Tissue. — Deep Epigastric Artery, of External Iliac. — Other anatomical points, necessary to the thorough understanding of the Inguinal Hernia?, are given under General Surgical Considerations. GENERAL SURGICAL CONSIDERATIONS. Definition of Inguinal Hernia. — Hernia passing through the abdominal wall in the inguinal region. Varieties of Inguinal Herniae. — (1) External or Oblique Inguinal Hernia, — neck of sac lies external to deep epigastric artery, — follows course of spermatic cord through inguinal canal. (2) Internal or Direct Inguinal Hernia, — neck of sac lies internal to deep epigastric artery, — hernia pene- trates some portion of abdominal wall internal to deep epigastric artery. (a) Oblique or External Inguinal Hernia. — Coverings of Oblique Inguinal Hernia : — The hernia enters the external inguinal fossa (v. i.) — and, passing down from the abdominal cavity, receives the following coverings, in order; — (1) At Internal Abdominal Ring: — perito- neum; subserous areolar tissue; infundibuliform process of fascia transversalis; ■ — (2) In Inguinal Canal: — (passes under curved fibers of internal oblique and transversalis, but does not receive a covering from them); cremaster muscle; — (3) At External Abdominal Ring: — intercolumnar fascia; — (4) In Scrotum: — superficial fascia; skin. Position of Oblique Inguinal Hernia. — This variety of Inguinal Hernia always lies to the outer side of the deep epigastric artery — and generally lies anterior to the vessels of the spermatic cord — and rarely descends below the the testis (because of adhesion of the hernial coverings to the tunica vaginalis). INGUINAL HERNIA— GENERAL SURGICAL CONSIDERATIONS. 1 165 Seat of Stricture in Oblique Inguinal Hernia. — Most frequently at the internal ring, — may occur at the external ring, — or may occur in the canal, by fibers of internal oblique and transversalis. (b) Direct or Internal Inguinal Hernia. — A correct understanding of this form of hernia depends upon a knowledge of the anatomy of the lower abdominal wall: — Cord-like Structures upon Inner Aspect of Lower Abdominal Wall. — Seven cord-like structures are seen upon the inner aspect of the lower abdom- inal wall — ranging from near the median line upward: — (a) Plica Urachi — remains of fetal urachus in median line; — (b) Two Plica? Hypogastrics — obliterated hypogastric arteries on each side of median line, running upward toward the median line; — (c) Two Plicae Epigastrica? — deep epigastric arteries running upward and toward median line; — (d) Two Poupart's Ligaments — running upward and outward. Fossae upon Inner Aspect of Lower Abdominal Wall. — Eight fossa? are formed by the peritoneum stretched over these prominent cord-like structures — by the depressions between them: — (a) Two Internal Inguinal Fossa? — be- tween plica? urachi and plicae hypogastrics; — (b) Two Middle Inguinal Fossa? — between plica? hypogastrica? and plica? epigastricae; — (c) Two Ex- ternal Inguinal Fossa? — between plicae hypogastrica? and Poupart's ligaments; (d) Two femoral fossa? — below Poupart's ligaments, to inner side of femoral vein. Relations of Herniee to Fossae upon Inner Aspect of Lower Abdom- inal Wall. — (i) Through the External inguinal fossa, an oblique inguinal hernia occurs; — (2) Through either the Internal or Middle inguinal fossa, a direct inguinal hernia comes; — (3) Through the Femoral fossa, a femoral hernia occurs. Fossae within Hesselbach's Triangle through which direct Inguinal Hernia may come. — Hesselbach's Triangle is bounded — Externally; by deep epigastric artery; — Internally; by outer border of rectus muscle; — Interiorly; by Poupart's ligament. The conjoint tendon of the internal oblique and trans- versalis is stretched across the inner two-thirds of Hesselbach's triangle. The remaining outer one-third has only the subperitoneal areolar tissue and trans- versalis fascia between the peritoneum and the external oblique aponeurosis. The plica hypogastrica divides Hesselbach's triangle into an internal inguinal fossa (which is the region of the conjoint tendon) and a middle inguinal fossa. Two forms, therefore, of direct inguinal hernia may occur — dependent upon whether the hernia escapes through the inner two-thirds or the outer one- third of Hesselbach's triangle. Commoner Form of Direct Inguinal Hernia. — In which the hernia en- ters the internal inguinal fossa, and either forces its way through the conjoint tendon, in the inner two-thirds of Hesselbach's triangle — or carries the con- joint tendon before it — and escapes into the lower part of the inguinal canal. This form of direct inguinal hernia has the following coverings, in order: — (1) Within Abdomen: — peritoneum; subserous areolar tissue; general layer of fascia transversalis; — (2) On its way to lower part of Inguinal Canal; — con- joint tendon of internal oblique and transversalis (instead of cremaster muscle) ; and then enters lower part of inguinal canal, which it traverses to emerge at external abdominal ring;— (3) At External Ring: — intercolumnar fascia; — (4) In Scrotum: — superficial fascia; skin. Rarer Form of Direct Inguinal Hernia. — In which the hernia enters the middle inguinal fossa, and escapes through the outer third of Hesselbach's tri- angle — external to the conjoint tendon — and enters the upper part of the in- n66 OPERATIONS FOR HERNLE. guinal canal. This form of direct inguinal hernia has the following coverings, in order: — (i) Within abdomen: — peritoneum; subserous areolar tissue; gen- eral layer of fascia transversalis (instead of infundibuliform process of trans- versalis fascia, as in the oblique form); — (2) In Inguinal Canal: — (which it now enters at its upper part, instead of entering at the internal abdominal ring, and travels through the rest of the way); cremaster muscle; — (3) At External Ring: — (from which it exits as does oblique hernia) ; intercolumnar fascia; — (4) In Scrotum: — superficial fascia; skin. Position of Direct Inguinal Herniae. — Both of the varieties of direct in- guinal hernia; lie upon the inner side of the deep epigastric artery. They do not enter the upper opening of the inguinal canal, but pass through the tissues over the os pubis and then enter the canal lower down — but make their exit at the external abdominal ring. Both these direct hernia 1 generally descend along the inner and anterior aspect of the spermatic cord. Seat of Stricture in Both Forms of Direct Inguinal Herniae. — Most frequently at the neck of the sac, — may occur at the external ring. Where the hernia pierces the conjoint tendon, the stricture may be at the margin of the fissure. Direction of Incision for Relief of Stricture. — Whether in operating for the relief of constriction in oblique inguinal hernia, or in either form of direct inguinal hernia — divide directly upward — which would be external to the deep epigastric artery in oblique inguinal hernia — and interna] to it in direct inguinal hernia:. INSTRUMENTS. Scalpels; bistouries, straight and curved, sharp and blunt; scissors, straight and curved, sharp and blunt; forceps, dissecting and toothed; artery-clamp forceps; tenacula; grooved director; special hernia knife; special hernia-director retractors; probe; needles, straight and curved; needle-holder; ligatures and sutures, silk, plain gut, chromic gut, kangaroo tendon, silkworm-gut. OPERATION FOR THE RADICAL CURE OF OBLIQUE INGUINAL HERNIA. BASSINI'S METHOD. Description. — Consists in the transplantation of the cord from its old to a new bed — between the internal oblique below, and the external oblique above — formed by suturing the lower borders of the conjoint tendon and the trans- versalis and internal oblique muscles above, to the shelving portion of Pou- part's ligament below — and covering these by suturing the aponeurosis of the external oblique, fascia and skin over them. The hernial sac is ligated and removed at its neck. The constituents of the cord are not disturbed. Preparation. — Bladder and bowels are emptied and pubic region shaved. Position. — Patient supine near edge of that side of table upon which hernia is. Surgeon on side of hernia, cutting from above downward on right, and from below upward on left, — or he may stand upon the right in both cases. Assistant opposite. Landmarks. — Internal and external rings; inguinal canal; spermatic cord; Poupart's ligament; anterior superior iliac spine. Incision. — Begins at a point to the inner side of the anterior superior iliac spine, and about 1.3 cm. (\ inch) above Poupart's ligament — passes obliquely BASSINI'S OPERATION FOR OBLIQUE INGUINAL HERNIA. 1167' downward parallel with and about 1.3 cm. (£ inch) above Poupart's ligament — and ends over the middle of the external abdominal ring — being about 7.5 to 9 cm. (3 to 3^ inches) long (Fig. 838, A). Operation.— (1) Divide skin and superficial fascia, clamping bleeding vessels — and retract edges of wound, exposing aponeurosis of external oblique. (2) Demonstrate the external abdominal ring and pass a grooved director through its opening and carry it obliquely upward in the line of the fibers of the external oblique aponeurosis, and immediately beneath its surface, for a dis- tance of about 6.3 cm. (2^ inches) — the instrument showing through its thin texture (Fig. 839). Slit up the fibers of the aponeurosis of the external oblique upon the grooved director with a scalpel, traveling in the cleavage line of the fibers. Dissect, by blunt separation, the upper edge of the cut aponeurosis in- Fig. 83S.— Incisions for Radical Cure of Oblique Inguinal Hernia:— A, Incision for Bassini'j Operation; B, Incision for Halsted's Operation. ward and upward nearly to the outer edge of the rectus sheath. Similarly dis- sect, by blunt separation, the lower edge of the cut aponeurosis of the external oblique downward and outward to the shelving portion of Poupart's ligament. The inguinal canal, except that part covered by the internal oblique, is thus exposed. (3) Grasp, with forceps, aided by the fingers, the mass of soft tissues just within, or emerging from the external abdominal ring, composed of cord and hernial sac — and, pushing aside the muscle-fibers with a blunt dissector, or closed ends of blunt, curved scissors, lift upward and out- ward the hernial sac and cord — drawing them partly from the direction of the inguinal canal, and partly from the direction of the scrotum — the hernia lying anteriorly, surrounded by the infundibuliform fascia, and the cord posteriorly — the sac and cord being more or less intimately adherent. 1 68 OPERATIONS FOR IIERNLF. (4) Isolate the sac from the cord by blunt dissection — and carry on the free- ing of the sac upward, retracting the internal oblique muscle outward to expose the outer aspect of the inguinal canal, until the sac begins to open out into the general peritoneum. If it be certain that the sac contains no adherent intestines or omentum, it need not be opened. If there be any ques- tion — and it is probably better in all cases to do so, whether question or not — the sac should be opened at some distance below the point of intended closure and examined. The contents of the sac, if any, are returned to the abdom- inal cavity. The sac is then to be treated in one of two ways: — If it be small, a double chromic gut ligature is carried through the center of that portion which is to form the line of occlusion — these two ligatures are crossed and are Fig. 830 — Bassim's Operation for Oblique Inguinal Hernia:— I. Splitting aponeurosis of external oblique; A, Aponeurosis of external oblique; E, External abdominal ring; C, Cord; D, Grooved director passed beneath aponeurosis of external oblique. (Modified from Bull and Coley.) firmly tied on each side — and the sac cut off a safe distance from the ligatures. If the sac be large (so that ligating would cause too much puckering and prob- ably slip off), its surfaces are to be sutured with chromic gut on a level with the site of division — and then -cut off with scissors at a safe distance distal to the suture line. The sac is thus disposed of and returned to the abdominal cavity (Fig. 840). (5) The cord is now taken up in the left thumb and index and isolated from external to internal ring, en masse, without disturbing its com- ponent structures, and a strip of gauze is passed beneath it — whereby it is held up by an assistant well out of the way, until its new bed is made for it. (6) The lower borders of the internal oblique and transversalis muscles are now sutured to the shelving portion, or border of Poupart's ligament, with interrupted su- BASSINI'S OPERATION FOR OBLIQUE INGUINAL HERNIA. 1169 Fig. 840. — BassinTs Operation for Oblique Inguinal Hernia: — II. Isolation of sac ; A, External oblique muscle; B, B, Aponeurosis of external oblique; C, Internal oblique muscle; D, Conjoint tendon of internal oblique and transversalis ; E, Cord ; F, Sac, incised and drawn outward ; G, Neck of sac surrounded by ligature; H, Ilio-inguinal nerve ; I, Genitocrural nerve. (Modified from Bull, Coley and Kelly.) Fig.841— Bassini's Operation for Oblique Inguinal Hernia:— III. Forming new floor for cord, A, A, Aponeurosis of external oblique; B, Shelving portion of Poupart's ligament; C, Cord, drawn out of canal by hook ; 1>. Internal oblique and transversalis retracted strongly outward ; E, Needle carrying sutures approximating internal oblique and transversalis, above, with shelving por- tion of Poupart's ligament, below. (Modified from Bull and Coley.) 74 OPERATIONS FOR HERN I.E. tures of kangaroo tendon or chromic gut, taking a good hold of both structures, using a curved needle, preferably of the Hagedorn type. Prior to the insertion Fig. 842.— Bassini's Operation for Oblique Inguinal Hernia : — IV. New floor for cord com- pleted ; A, A, Aponeurosis of external oblique; E, Shelving portion of Poupart's ligament; C, In- ternal oblique and transversalis; D, Sutures forming new bed for cord, by approximating internal oblique and transversalis, above, to shelving portion of Poupart's ligament, below ; E, Cord drawn outward by hook. (Modified from Bull and Coley.) A, Fig. 843. — Bassini's Operation for Oblique Inguinal Hernia: — V. New roof of canal formed ; A, Sutures uniting split fibers of external oblique aponeurosis over cord ; B, Cord emerg- ing from new external ring. (Modified from Bull and Coley.) of the sutures uniting internal oblique and transversalis above, to Poupart's liga- ment below, the lower borders of the internal oblique and transversalis should HALSTED'S OPERATION FOR OBLIQUE INGUINAL HERNIA. 1171 be isolated by the surgeon's fingers from the transversalis fascia, beginning at the conjoint tendon and extending outward to the internal abdominal ring. While passing the sutures, the surgeon's left index should be carried behind the conjoint tendon and also behind the lower borders of the internal oblique and transversalis muscles, so as to guide the needle-point. The first suture, near the upper end of the wound, pierces the internal oblique almost as far outward as the external border of the rectus muscle. It should just come in contact with the inner aspect of the cord when the latter is held at a right angle to the plane of the internal oblique muscle as it emerges from opposite the internal ring. A second suture is placed just above the cord, to strengthen the internal ring, the cord thus emerging between two sutures. As many similar sutures as are indicated (generally six or seven altogether) are thus placed. The last, lowest, suture passes through the conjoint tendon of the internal oblique and transversalis above, and the shelving portion of Poupart's ligament below. (Fig. 841.) (7) The cord is now dropped down upon its new bed made by su- turing the conjoint tendon and the internal oblique and transversalis muscle to the shelving border of Poupart's ligament (Fig. 842) . (8) The separated edges of the aponeurosis of the external oblique are now sutured directly over the cord with continuous kangaroo or chromic gut sutures — carefully avoiding too tightly suturing the edges over the cord at the lower end, the new external ring, where the cord escapes into the scrotum (Fig. 843). (9) The skin is closed throughout with interrupted sutures of fine catgut. No drainage is used. The first dressing usually comes off at the end of a week. Comment. — No muscle tissue, except aponeurosis of external oblique, is cut. OPERATION FOR THE RADICAL CURE OF OBLIQUE INGUINAL HERNIA. halsted's method. Description. — Like Bassini's operation, which it resembles in many respects, Halsted's original method consisted not only in a transplantation of the cord from its natural to a new canal, but also in the making of a new, closely fitting internal ring. It differed from Bassini's technic in the following respects: — (a) a new internal ring was made; — (b) most of the veins of the cord were excised; — (c) the internal oblique and transversalis muscles and transversalis fascia were incised; — (d) the cord was finally made to lie between the aponeurosis of the external oblique and the skin; — and (e) silver wire mattress sutures were extensively used. The original technic has been con- siderably modified — as described under Operation. Preparation — Position — Landmarks. — As for the Bassini operation. Incision. — Begins about 3 cm. (i| inches) to the outer side and above the internal abdominal ring — and extends thence in a straight line to the spine of the pubis. Operation. — Incise skin and fascia and split the fibers of the muscular and aponeurotic portions of the external oblique along this line, to and through the external ring. Retract the borders of the incision, thus exposing the cord, cremaster muscle and fascia, vessels, and hernial sac. The fibers of the cremaster muscle (which constitutes the lower part of the internal oblique muscle) are split somewhat above the cord. The vessels, especially the redun- dant veins, are isolated, grasped with forceps at either end, and ligated and divided at the internal and external rings — and are carefully dissected away 1172 OPERATIONS FOR HERNLE. between the sites of ligation, retracting and guarding the vas deferens (Fig. 844). Having freed the hernial sac, incise it and return its contents to the Fig. 844. — Halsted's Operation for Oblique Inguinal Hernia: — I. — The aponeurosis and fibers of the external oblique have been split and retracted. The fibers of the cremaster (internal lower part of internal oblique) have been retracted and split somewhat above the cord. The hernial sac, spermatic cord, and veins are seen in the mass of connective tissue, being retracted upward by catch-forceps. abdominal cavity. Having especially freed the neck of the sac, transfix and ligate it with chromic gut, leaving both ends of the ligature long. Each end Fig. 845. — Halsted's Operation for Oblique Inguinal Hernia: — II. — The median aspect of the internal oblique sutured (interrupted mattress sutures) to the outer aspect of the split internal oblique — causing the former to overlap the latter. of this ligature is threaded with a curved needle — both of which are carried upward and inward under the internal oblique, 1.3 cm. (\ inch) apart, and HALSTED'S METHOD FOR OBLIQUE INGUINAL HERNIA. 1 1 73 passed through the muscle and tied so as to draw the neck of the sac up and anchor it. Mobilize the median aspect of the split internal oblique sufficiently Fig. 846. — Halsted s Operation' for Op.lique Inguinal Herxia: — III. — The free edge of the internal oblique and conjoint tendon sutured (plain interrupted sutures) to the shelving portion of Poupart's ligament. to subsequently enable its edge to reach to Poupart's ligament — and suture it to the outer aspect of the split internal oblique by several mattress sutures Fig. S47.— Halsted 's Operation for Oblique Inguinal Hernia: — IV. — The inner aspect of the external oblique is sutured (mattress sutures) to the outer aspect of the external oblique — causing the former to overlap the latter. of fine silk (or chromic gut) — in such a way as to cause an overlapping of the median upon the outer aspect of the internal oblique (Fig. 845). Suture H74 OPERATIONS FOR HERNLF. the free edge of the internal oblique, the conjoint tendon (and a part of the sheath of the rectus, if necessary) to the shelving portion of Poupart's liga- ment by interrupted chromic gut sutures (Fig. 846). Suture, with chromic gut mattress sutures, the inner aspect of the aponeurosis of the external oblique to the outer aspect of the external oblique aponeurosis — causing the former to overlap the latter (Fig. 847). And then suture, with plain, interrupted Fig. 848. — Halsted's Operation for Oblique Inguinal Hernia: — V. — The free border of the inner aspect of the external oblique is sutured to the outer surface of the outer aspect of the external oblique. chromic gut stitches, the free border of the inner aspect of the external oblique aponeurosis down to the outer surface of the outer aspect of the external oblique (Fig. 848) . The skin-wound is closed with a subcuticular silver-wire suture. The suture line is covered with silver foil — which is removed in two weeks, at which time the subcuticular suture of wire is withdrawn. II. FEMORAL HERNIA. SURGICAL ANATOMY. The structures encountered in the operations for Femoral Hernia, and those in the immediate neighborhood of the site of operation, will be here briefly de- scribed, chiefly as encountered, from without inward. Superficial Fascia. — Between whose layers are superficial arteries, veins, lymphatics, and nerves. Superficial Layer of Superficial Fascia. — Superficial Arteries. — Superficial external pudic; superficial epigastric; superficial circumflex iliac — all from the femoral. Superficial Veins. — Internal or long saphenous — receiving superficial ex- ternal pudic, superficial epigastric, and superficial circumflex iliac. Superficial Inguinal Glands. — Superior set — along Poupart's ligament. Inferior set — around saphenous opening. Superficial Nerves. — Uio-inguinal; crural branch of genito-crural. SURGICAL ANATOMY OF FEMORAL HERXIA. 1175 Deep Layer of Superficial Fascia. — Cribriform fascia — that portion attached to borders of saphenous opening, in fascia lata. Fascia Lata. — Iliac portion — outer portion of fascia lata. Pubic portion — inner portion of fascia lata. Saphenous Opening. — Opening in fascia lata formed by iliac and pubic portions uniting — through which opening a femoral hernia escapes after tra- versing the crural canal. Poupart's Ligament or Crural Arch. — See Inguinal Hernia. Gimbernat's Ligament. — See Inguinal Hernia. Crural or Femoral Sheath. — Formed by continuation downward of trans- versalis fascia in front and iliac fascia behind the femoral vessels — the two layers being united and continuous directly to the outer side of the vessels; but at a short distance from these vessels, upon the inner side, a space intervenes, usually occupied by a lymphatic gland, between the femoral vein and the inner limit of the sheath, constituting the crural or femoral canal. The femorai sheath is redundant and funnel-shaped opposite Poupart's ligament, but is ad- herent to the areolar sheath of the femoral vessels about 2.5 cm. (1 inch) below the saphenous opening. Relations of Crural or Femoral Sheath. — Anteriorly: — iliac portion of fascia lata. Posteriorly: — pubic portion of fascia lata. Externallv: — genito crural nerve pierces. Internally: — internal saphenous vein and lymphatics pierce. Septa of Crural or Femoral Sheath. — Outer antero-posterior septum — between femoral artery and femoral vein. Inner antero-posterior septum — between femoral vein and femoral canal. Compartments within Crural or Femoral Sheath. — Three compart- ments are formed by the two above septa. Outer compartment is occupied by femoral artery. Middle compartment — by femoral vein. Inner compart- ment — constitutes femoral canal — which is generally filled up by lymphatic glandular and areolar tissue in the normal state. Deep Crural Arch. — A thickened portion of fascia transversalis, passing from center of Poupart's ligament, across the anterior aspect of the crural sheath, to be attached to the pectineal line posterior to the conjoint tendon. Crural or Femoral Canal. — Space between femoral vein and inner wall of femoral sheath — that is, the inner compartment of the sheath of the femoral vessels. Anterior wall— formed by transversalis fascia covered by falciform process of iliac portion of fascia lata. Posterior wall — formed by iliac fascia, resting upon pubic portion of fascia lata. External wall — formed by internal septum between it and femoral vein. Internal wall — formed by union of transversalis and iliac fascia? bounding the femoral canal and resting against the base or outer border of Gimbernat's ligament. Upper opening of femoral canal — is the femoral or crural ring, and is closed by the septum crurale (con- densed areolar tissue). Lower opening of femoral canal — is the saphenous opening, and is closed by the cribriform fascia. Crural or Femoral Ring. — Superior opening of the femoral canal into the peritoneal cavity — oval, transverse in direction, about 1.3 cm. (i inch) in ex- tent — and having following boundaries: — Anteriorly: — Poupart's ligament; deep crural arch. Posteriorly: — os pubis; pectineus; pubic portion of fascia lata. Internally: — external border of Gimbernat's ligament; conjoint tendon; transversalis fascia; deep crural arch. Externally:- — inner antero-posterior fibrous septum on inner aspect of femoral vein. Relations of Structures in the Near Neighborhood of the Ring. — Supe- riorlv: — spermatic cord in male (round ligament in female); deep epigastric \l]6 OPERATIONS FOR HERXEE. vessels. Externally: — femoral vein; deep epigastric- vessels. Anteriorly: — com- municating branch between deep epigastric and obturator arteries. Inter- nally: — no important structure. Posteriorly : — no important structure. Obturator Artery.-- Arises in common with deep epigastric once in every three and one-half subjects — and in such cases it follows one of two courses: — (i) Runs down upon inner aspect of external iliac vein, along the outer side of crural ring — and is, therefore, in safety. (2) Runs along free border of Gim- bernat's ligament, along the inner side of crural ring — and, therefore, is apt to be cut in an outward incision for relief of stricture. Septum Crurale. — Condensed areolar tissue closing upper opening of femoral ring. Subperitoneal Areolar Tissue. — Peritoneum. — GENERAL SURGICAL CONSIDERATIONS. Course of Femoral Hernia. — Coming from within the abdominal cavity outward, the hernia passes at first vertically through the femoral canal," from the femoral ring to the saphenous opening — thence (because the femoral sheath here narrows and is more closely connected to the vessels, and because of the closer connection of superficial fascia and crural sheath to the saphenous open- ing) forward through the cribriform fascia — thence upward upon the falci- form process of the fascia lata and Poupart's ligament. In manipulation for the reduction of such a hernia, pressure should be applied in the reverse direc- tions. Coverings of Femoral Hernia. — Passing from within outward, the hernia carries with it the following structures, in order: — (1) Within the abdomen: — peritoneum; subserous areolar tissue. (2) At femoral ring: — septum crurale. (3) In Femoral canal: — femoral sheath. (4) At saphenous opening : — cribri- form fascia. (5) Upon thigh : — superficial fascia ; skin. Seats of Stricture. — (1) At the border of the saphenous opening; — (2) At the union of the falciform process of the fascia lata and the curved edge of Gimbernat's ligament; — (3) At the femoral ring. Direction of Division of Stricture. — Upward and inward — for 4 to 6 mm. (2 to 3 lines). OPERATION FOR THE RADICAL CURE OF FEMORAL HERNIA. BASSINI'S METHOD. Description. — The hernial sac is exposed, emptied of contents, ligated, excised, and the neck returned to the abdominal cavity. The femoral canal is then closed by suturing Poupart's ligament and the falciform process of the fascia lata, above and externally — to the pectineal fascia (pubic portion of fascia lata) below and internally. Preparation. — Pubic region and region of the saphenous opening shaved. Position. — Patient supine at edge of table. Surgeon on side of hernia. Assistant opposite. Landmarks. — Poupart's ligament; femoral vessels; saphenous opening. Incision. — Parallel with and just below Poupart's ligament, with its center over the saphenous opening. Operation. — (1) Incise skin and superficial fascia — clamp and tie vessels — retract edges of wound — and expose the saphenous opening. (2) Dissect BASSIXFS OPERATION FOR FEMORAL HERNIA. 1177 out the hernial sac from its canal, as high up as possible. Open its lower part and return its contents to the abdominal cavity. Draw the sac well down and transfix its neck with double chromic ligature. Cross the ends of the ligatures and ligate and cut off the neck safely below the ligature — the stump receding into the abdomen. (3) Pass kangaroo tendon, or chromic gut sutures, in a curved needle, in the following manner: — (a) Pass three sutures to approxi- mate Poupart's ligament to the pectineal fascia — the first, near the pubic spine — the second, about 5 mm. (nearly % inch) to the outer side of the first — and the third, about 1 cm. (f inch) to the inner side of the femoral vein — each passing through the pectineal fascia below. These sutures are left tempora- rily untied, (b) Pass three or four other sutures through the falciform process of the iliac portion of the fascia lata, externally — and the pectineal fascia (which is the same as the pubic portion of the fascia lata) internally — the lowest su- Fig. 849. — Eassini's Opkration for Femoral Hernia: — A, Poupart's ligament; B, Falci- form process of fascia lata ; C, Pectineal fascia (pubic portion of fascia lata;; D, Internal saphenous vein. Three sutures to right approximate Poupart's ligament to pectineal fascia. Remaining sutures pass through falciform process of fascia lata externally, and the pectineal fascia internally. (^N'ote — the femoral opening is represented somewhat too far outward .) ture passing just above the saphenous vein. (4) The upper sutures are then tightened and tied, bringing Poupart's ligament backward to the linea pectinea. The lower sutures are next tightened and tied, approximating the anterior and posterior walls of the femoral canal. (5) The skin incision is closed with silk. No drainage is used. (Fig. 849.) Comment. — The closure of the femoral opening may also be made by a purse-string suture. Kangaroo tendon, upon a curved needle, is passed through the inner aspect of Poupart's ligament, or through the roof of the femoral canal — thence passes downward, taking a firm hold upon the pec- tineal fascia and underlying muscle — thence outward and upward through the fascia lata, covering the femoral vein — thence upward, coming out through 1178 OPERATIONS FOR HERNEE. the roof of the femoral canal 6 cm. (| inch) from its place of entrance. When this suture is tied, the floor of the femoral canal is brought up into contact with its roof, thus obliterating the femoral opening. (Fig. 850.) Fig. CS50. — Closure of the Femoral Caxal by a Purse-string Suture. III. UMBILICAL HERNIA. SURGICAL ANATOMY. Parts Passing through the Umbilicus Early in Fetal Life.— Urachus; umbilical arteries; umbilical vein; some of the fetal membranes and part of the digestive tract. Congenital Umbilical Hernia. — A form of hernia existing at birth — owing to an error of development — the above conditions persisting. Infantile Umbilical Hernia. — A form of hernia occurring in the early years of life (generally prior to ten years of age). It is that form of hernia where, after birth, the intestines protrude through the umbilicus, which, in the latter part of fetal life, transmits only the umbilical vessels. Method of Normal Closure of the Umbilicus. — (a) Several changes in the component structures take place: — (1) Contraction and shrinkage of the umbilical ring after birth — dividing, by its closure, the umbilical vessels run- ning through the ring. (2) Clotting of the vessel contents — proliferation of connective tissue — and contraction of the muscle-fibers of the vessels, (b) As a result, a firm, fibrous scar is thus formed at the site of the umbilicus, with two sets of fibers decussating about it; — (1) One set of fibers decussating in the median line; — (2) Two sets of circular fibers interlacing upon the lateral aspects of the umbilicus. Site of Umbilical Hernia. — Thus it is seen that the umbilical vessels and ring unite to form scar-tissue — which, remaining weak for a time — or subse- OPERATION FOR RADICAL CURE OF UMBILICAL HERXIA. 1 179 quently submitted to strain — may yield to hernia. Hernia occurring after birth, therefore, may make its appearance by two routes: — (1) Exceptionally, hernia comes through the abdominal wall near to, but not through, the um- bilicus. (2) Ordinarily, hernia comes through the umbilical ring — and usually through its upper third (where is the weaker scar-tissue about the umbilical vein) — and but seldom through the lower two-thirds (where is the stronger scar- tissue of the umbilical arteries and urachus). Coverings of Umbilical Hernia. — (From within outward) — peritoneum; subserous areolar tissue; transversalis fascia; stretched and distended umbilical scar-tissue; superficial fascia, deprived of fat; integument. A- -■ Fig. 851. -Mayo's Operation for the Radical Cure of Umbilical Herxia: — I. — Clearing the neck of the hernial sac. OPERATION FOR THE RADICAL CURE OF UMBILICAL HERNIA P,V EXCISION OF SAC AND SUTURING OF FRESHENED EDGES OF RING. Description. — The hernial sac, together with the redundant tissues cover- ing it, is excised by an elliptical incision — followed by the suturing together of the freshened margins of the abdominal ring. n8o OPERATIONS FOR HERNLE. Preparation. — Site of hernia thoroughly scrubbed and shaved. Bowels emptied. Position. — Patient supine at edge of table. Surgeon to patient's right. Assistant opposite. Landmarks. — Site and form of hernia; umbilicus; median line. Incision. — Elliptical in outline, with upper and lower ends in median line — and maximum separation of limbs of ellipse opposite the greatest width of the hernia, and determined by the size of the tumor. Laterally the lines of incision generally come near the base of the tumor, so as to remove the excess of skin. Fig. 852. — Mayo's Operation for the Radical Cure of Umbilical Hernia: — II. — ■ Suturing of the margins of abdominal aponeuroses and muscles, mattress sutures of Pagen- stecher thread in the center and of chromic catgut laterally. Operation. — (1) Incise, at first, through skin and fascia only. (2) Care- fully deepen the wound on one side until the abdominal aponeurosis (sheath of the recti) is reached — aiming to come down upon it a short distance to the outer side of the hernial neck. (3) Having once reached the rectal aponeuro- sis, similarly expose this aponeurosis and the neck of the hernial sac all around the outline of the ellipse. All bleeding is controlled by clamp and ligature. (4) The hernial sac is now incised and its contents dealt with as indicated. OPERATION FOR RADICAL CURE OF UMBILICAL HERNIA. Il8l Adhesions are separated. Excess of omentum is ligated and excised. x\ll remaining contents of the sac are returned to the abdomen — and kept in place by a large, anchored gauze pad — which is removed just before closure of the abdomen. (5) The entire sac, with the umbilicus and the coverings included in the ellipse, is now excised—dividing the peritoneum in an elliptical manner about the neck of the sac. (6) The peritoneum — or the peritoneum and trans- versalis fascia together — is sutured with interrupted or continuous gut sutures. (7) The borders of the abdominal ring — formed by the sheaths and margins of the recti muscles — are freshened with curved scissors. The edges of the ring are then brought together with interrupted sutures of kangaroo tendon or chromic gut — using either the plain interrupted suture, or the mattress type. (8) The skin and fascia (unless the fascia be thick enough to require separate gut suturing) are sutured with interrupted silkworm-gut sutures. (9) The part is then well supported by an abdominal dressing. Comment. — Various forms of operation have been devised — including die transposition of portions of the recti muscles over the site of hernia. Fig. 853. — Mayo's Operation for the Radical Cure of Umbilical Hernia: — III. — Overlapping of the aponeuroses, accomplished by the preceding tier of sutures, after which the free edge of the upper margin of aponeuroses is stitched to the surface of aponeuroses of the lower aspect of the wound. OPERATION FOR THE RADICAL CURE OF UMBILICAL HERNIA. MAYO'S " OVERLAPPING " METHOD. Description. — Following the excision of the hernial mass, the abdominal aponeuroses are overlapped transversely and sutured. Il82 OPERATIONS FOR HERNL-E. Preparation — Position — Landmarks. — As for abdominal section. Incision. — Two elliptical incisions are made transversely, surrounding the neck of the sac and meeting on either side. Operation. — Having carried the incision through skin and fascia down to the abdominal aponeuroses, the neck of the hernial sac is cleared in its entire circumference (Fig. 851). The sac is incised and its contents returned to the abdomen — carefully separating adhesions from the sac-wall, and seeing that no dangerous interintestinal adhesions are left. All protruding omentum is tied off in segments, severed, and the stumps returned to the abdominal cavity. The sac, including fascia and skin, are now excised — leaving a clean-cut opening bounded by aponeuroses. A central mattress suture of stout Pagen- K Fig. 854. — Blake's Operation for the Radical Cure of Umbilical Hernia :- vertical division of the parts and overlapping of the aponeuroses. -Showing a stecher thread is carried through the margins of the sac-opening — in such a way as to cause the upper edge of the wound to overlap the lower — passing through the entire thickness of aponeuroses, muscles, and peritoneum (Fig. 852) . On each side of the central stitch a chromic gut mattress suture is similarly placed. Upon drawing upon these three sutures, the lower flap is brought upward and behind the upper flap — the two flaps being brought into close approximation upon tightening the sutures. On retracting the upper flap upward for examination, if any lack of approximation is found, the mattress sutures are reinforced by interrupted chromic gut sutures. The free margin of the upper flap is now sutured to the surface of the lower flap by interrupted OPERATION FOR RADICAL CURE OF UMBILICAL HERNIA. 1 183 or continuous chromic gut suturing (Fig. 853). The skin and fascia are closed in the ordinary manner. The patient is kept in bed from twelve to twenty davs. Comment.— The same principle is carried out by Blake's operation— in which a median incision is made and retracted and the margins of the apo- neuroses made to overlap from side to side— instead of from above downward. (Fig. 854.) NDEX Abbe's operation for esophageal stricture, 716 _ Abdominal aorta, anatomy of, 78 ligation of, 79 hysterectomy, partial, 1151 total, 1 153 _ section, anterior, through rectal sheath, 811 anterolateral, Harrington-Weir pro- longation of anterolateral intra- muscular incision through rectal sheath, Sio inferior. Fowler's angular incision, 818 Meyer's hockey-stick incision, 817 McBurney's intramuscular incision, 807 superior, oblique subcostal incision, 818 lateral, Yischer's lumbo-iliac incision, 819 median, 801 complications during, 806 inferior, Pfannenstiel's incisions, 815 Abdominopelvic region, operations upon, 793 general considerations, 799 wall, anatomy of, 793 operations upon, 793 instruments for, 801 Abscess, cerebellar, operation for, 596 cerebral, operation for, 595 intra-abdominal, operative treatment of, 829 Acupressure for radical cure of aneurism, 139 of veins, 145 Albert's method of gastrostomy, 959 Alexander's method of prostatectomv, 1144 Allingham's operation for hemorrhoids, 944 Amputation, 271 about hands, general considerations, 339 adjustment and suturing of musculo periosteal or periosteocapsular cover- ing, 297 anesthesia in, 272 circular, 303 cuff method, 305 division of muscles in, 281 modified, 306 ordinary, 303 complications of, immediate, 320 drainage in, 300 dressing of wound, 301 elliptical, 315 75 Amputation, flap, 309 division of muscles in, 284 equal, of skin, 312 and muscle, 311 single, of skin, 311 muscles, 309 unequal, of skin, 314 muscles, 313 rectangular, of skin and muscles, 314 freeing and retracting muscles in, 288 skin and fascia in, 279 general considerations in, 271 hemorrhage in, control of, 272 incision of skin and fascia in, 276 instruments for, 271 interilio-abdominal, 460 intermediate, 319 irregular methods of, 317 ligating arteries and veins in, 295 location of limits of skin incisions in, 275 of line of bone-section in, 274 making musculoperiosteal or periosteo- capsular covering, 289 methods of, 301 selection of, 317 of arm at surgical neck, 370 general considerations, 367 in general, 368 lower third, 368 together with scapula and part of clavicle, 383 upper two-thirds, 370 of fingers, at first phalanx, 331 by palmar flap, 331 by short dorsal and palmar flaps, 33 2 at last phalanx, by palmar flap, 327 in general, 327 at second phalanx, by palmar flap, 330 by short dorsal and long palmar flaps, 330 in general, 330 excluding thumb, with parts of meta- carpals, 343 general considerations, 325 little, with part of metacarpal, 342 three innermost, with parts of meta- carpals, 343 inside, with parts of metacarpals, 342 two contiguous inside, with parts of metacarpals, 342 with parts of metacarpals, 341 of foot, general considerations, 401 of forearm, general considerations, 355 in general, 356 118.; u86 INDEX Amputation of forearm, lower third, cir- cular method, cuff variety, 357 modified circular method, 356 upper two-thirds, 358 of leg, at lower third, 420 femorotibial osteoplastic, 443 general considerations, 418 middle third, 424 osteoplastic, 422 at upper third, 429 supramalleolar region, 419 upper third, 425 bilateral hooded flaps, 427 of lower extremity, 385 of penis, partial, 11 14 total, n 16 of thigh, 440 at condyles of femur, 440 general considerations, 438 just above condyles of femur, 441 just below trochanters, 449 lower, middle, or upper third, 440, 44S lower third, 444 of thumb, with part of metacarpal, 342 of toes, at first phalanx, 391 circular method, 392 oval method, 392 at last phalanx, 388 by plantar flap, 388 at metatarsus, 402 at second phalanx, 390 by plantar flap, 390 general considerations, 386 with part of metatarsals, 401 of upper extremity, 323 osteoplastic, 317 oval, 307 position of assistants in, 271 of patient in, 271 of surgeon in, 271 preparation of patient in, 271 primary, 319 quilting of muscles, 298 racket, 308 removal of dressings, 301 removing splintered bone, 294 retraction of skin and fascia in, 280 of soft parts preparatory to sawing bone, 292 sawing bone, 292 secondary, 319 site of, in connection with resulting stump and its adaptability to artificial limb, 322 stump, 319 adaptability of, to artificial limb, 322 bad, characteristics of, 320 cicatrices of, position, 321 function of, 321 good, qualities of, 319 suturing, 300 tissues of, contractilitv, 321 vitality of, conditions influencing, 320 technic in, general, 274 treatment of nerves, tendons, and tags of muscle, fascia, and skin in, 297 Amputation, trimming of flaps, 297 Anastomosis, facio-accessorv, for peripheral facial paralysis, 196 faciohypoglossal, for peripheral facial paralysis, 196 intestinal, 854. See also Entero-enteros- tomy. nerve-, 165 uretero-ureteral, 10S0 Anesthesia in amputations, 272 massive infiltration, with weak analgesic solutions, Mata's modification of Schleich's method, 172 regional, intraneural infiltration for, 169 Matas and Crile's operation, 169 paraneural infiltration for Mata's method, 171 spinal, subarachnoid puncture for, 666 Aneurism, arteriovenous, radical cure of Matas-Bickham operation for, 133 radical cure of, acupuncture for, 124 introduction of wire for, 139 ligation for, 139 Macewen's operation for, 139 Mata's operation for, 125 needling for, 140 Aneurismorrhaphy, 125 Ankle-joint, anatomy of, 412 disarticulations at, general considerations, 4_i3 excision of, 510 Annandale's osteoplastic resection of supe- rior maxilla, 474 Anus, artificial, closure of, operation for, 927 permanent, left inguinal colostomy for, _ 919 right inguinal enterostomy for, 914 fistula in, operation for, 947 Aorta, abdominal, anatomy of, 78 ligation of, 79 Aponeurotomy, 269 Appendicectomy, 900 Halsted's method, 910 McBurney's method, 900 non-intramuscular method, 911 through rectal sheath, 911 Appendicostomv, 912 Weir's method, 912 Arm, amputation about, general considera- tions, 367 amputation of, 368 anatomy of, 365 Arterial forcipressure, 140 Arteriorrhaphy, 118 Bougie's method of, 123 Gluck's method of, 123 Murphy's method, 1 19 Salomoni and Tomaselli's method of, 123 Arteriostrepsis, 140 Arteriovenous aneurism, radical cure of, Matas-Bickham operation for, 133 Artery, abdominal aorta, anatomy of, 78 ligation of, 79 axillary, anatomy of, 59 first part, ligation of, 60 third part, ligation of, 62 INDEX 1187 Artery, brachial, anatomy of, 63 ligation of, 64 carotid, common, 'anatomy of, 32 left, anatomy of, 32 ligation of, 34 right, anatomy of, 32 external, anatomy of, 36 ligation of, 37 internal, anatomy of, 40 ligation of, 50 clearing of, for ligation, 22 dorsalis pedis, anatomy of, 107 ligation of, 107 exposure of, for ligation, 20 facial, anatomy of, 40 ligation of, 41 femoral, anatomy of, 91 common, ligation of, 93 superficial, ligation of, 96 gluteal, anatomy of, 87 ligation of, 87 iliac, common, anatomy of, 81 ligation of, 81 external, anatomy of, 88 ligation of, 89 internal, anatomy of, 83 ligation of, 84 innominate, anatomy of, 27 ligation of, 27 intercostal, anatomy of, 76 ligation of, 76 ligation of, 17. See also Ligation 0} artery. line of, 18 lingual, anatomy of, 38 ligation of, 39 mammary, internal, anatomy of, 57 ligation of, 58 maxillary, internal, anatomy of, 44 meningeal, middle, anatomy of, 44, 535 anterior branch, ligation of, 48 posterior branch, ligation of, 49 topography of, 542 trunk of, ligation, 47 occipital, anatomy of, 42 ligation of, 42 of cerebral hemorrhage, 535 opening sheath of, for ligation, 21 peroneal, anatomy of, 114 ligation of, 1 1 4 plantar, external, anatomy of, 115 ligation of, 116 internal, anatomy of, 1 1 7 ligation of, 1 17 popliteal, anatomy of, 99 ligation of, 100 pressure of, 140 profunda femoris, anatomy of, 94 ligation of, 95 pudic, internal, anatomy of, 85 ligation of, 85 radial, anatomy of, 66 ligation of, 69 sciatic, anatomy of, 84 ligation of, 84 subclavian, anatomy of, 50 Artery, subclavian, left, first portion, liga- tion of, 52 right, first portion, ligation of, 52 second portion, ligation of, 53 third portion, ligation of, 53 suture of, 118 temporal, anatomy of, 43 ligation of, 43 thyroid, inferior, anatomy of, 56 ligation of, 57 tibia, anterior, anatomy of, 103 ligation of, 104 posterior, anatomy of, 108 ligation of, 109 torsion of, 140 ulnar, ligation of, 73 vertebral, anatomy of, 35 ligation of, 55 wounds of, closure, Brewer's operation for, 124 by special rubber plaster, 124 Arthrectomy, 242 Arthrodesis, 242 Arthroplasty, 241 Arthrotomy, 241 Artificial anus, closure of, operation for, 927 permanent, left inguinal colostomy for, 919 right inguinal enterostomy for, 914 larynx, introduction of, 702 Astragalus, excision of, 507 Auditory word area, localization of, 545 Auricle, right, of heart, paracentesis of, 787 Axillary artery, anatomy of, 59 first part, ligation of, 60 third part, ligation of, 62 lvmphatic glands, anatomy of, 154 removal of, 155 trunk, anatomy of, 154 region, anatomy of, 154 Bardexheuer's method of ligating innomi- nate artery, 31 Barker's excision of hip-joint, 529 Bartholin's duct, anatomy of, 726 operations upon, 726 Basal ganglia, topography of, 541 Bassini's operation for femoral hernia, 1 1 76 for oblique inguinal hernia, 1166 Battle-Galaguier-Kammerer method of anterior abdominal section, 811 Baum's method of exposing facial nerve, 195 Bell's cyrtometer in Chipault's cranio- cerebral localization, 550 Bennett's modification of Howse's operation for varicocele, 1 137 Berger's method of amputation of arm, 383 Bier's method of amputating leg at upper third, 429 Billroth's method of pylorectomy, 997 Birth palsy, brachial, o] a-ration for, 199 Bladder, anatomy of, 1091 drainage of, 1108 perineal, 1108 suprapubic, 110S Ill INDEX Bladder, drainage of, urethral, 1 108 female, introduction of sound or catheter into, 1095 implantation of ureter into, 10S5 male, introduction of sound or catheter into, [094 operations upon, 1091 general considerations, 1093 instruments for, 1094 puncture of, 1095 stone in, lateral perineal cystotomy for, 1099 median perineal cystotomy for, 1102 suture of, 1 103 Blake's method of treating diffuse septic peritonitis, 826 Bobroff's operation for spina bifida, 683 Boeckel-Langenbeck's excision of wrist- joint, 491 Bone-grafting, 227 Bone-implantation, 227 Bones, operations upon, 210 osteoplastic resections of, 468 uniting of tendons to, operation for, 264 Bose's bloodless method of tracheotomy, 706 Bougie, esophageal, introduction of, 715 Bougie's method of arteriorrhaphy, 123 Bovee's method of uretero-ureterostomy, 1081 Brachial artery, anatomy of, 63 ligation of, 64 birth palsy, operation for, 199 plexus of nerves, anatomy of, 198 exposure of, in neck, 198 Brain, anatomy of, 533 areas, localization of, 543 bullet wound of, operation for, 591 parts of, 533 puncture of, exploratory, 584 ventricles of, lateral, puncture and drain- age of, 594 topograph}- of, 542 Braun-Loessen method of exposing superior maxillary nerve and Meckel's ganglion, 186 Breast, female, anatomy of, 736 excision of, ordinary, 745 partial, 737 radical, Halsted's operation, 741 Warren's operation, 744 Meyer's operation, 738 subcutaneous, 746 incision of, 737 operations upon, 736 general considerations, 736 Brewer's method of closing wounds of arteries, 124 Broad ligament of uterus, anatomy of, 1148 Bronchi, anatomy of, 791 operations upon, 791 Bronchotomy, 791 Bryant's method of colopexy, 932 of posterior thoracotomv, 752 operation for esophageal stricture, 716 Bullet wound of brain, operation for, 591 Bursa:, excision of, 270 incision of, 270 operations upon, 276 puncture of, 270 Calculus, vesical, lateral perineal cystot- omy for, 1099 median perineal cystotomy for, 1102 Carden's amputation of thigh, 440 ( lardiac orifice of stomach, dilatation of, 987 Cardiorrhaphy, 790 Carnochan's method of exposing superior maxillary nerve, 185 Carotid artery, common, anatomy of, 32 left, anatomy of, ^ ligation of, 34 right, anatomy of, 32 external, anatomy of, 36 ligation of, 37 internal, anatomy of, 49 ligation of, 50 Cartilages, nasal, chondroplastic resection of, 473 semilunar, dislocation of, operation for, 244 Castration, 1134 Catheter, Eustachian, introduction of, 619 introduction of, into female bladder, 1095 into male bladder, 1094 Celiotomy veins, 800 Cerebellar abscess, operation for, 596 subarachnoid space, incision of, for drainage, 595 tumor, operation for, 599 Cerebellum, anatomy of, 535 extent of, 539 function of, 545 Cerebral abscess, operation for, 595 hemispheres, extent of, 538 hemorrhage, artery of, 535 tumor, operation for, 597 Cerebrum, fissures of, 533 lobes of, 534 mesial fissures and lobes of, 534 Cervical esophagectomy, partial, 714 esophagostomy, 714 esophagotomy, external, 712 nerves, first, second, third, posterior divisions, exposure of, 107 sympathetic ganglia and cord, anatomy of, 208 •total exi ision of, 209 Cheever's method of tonsillectomy, 719 Chiene's method of determining Rolandic fissure, 554 of exposing retropharyngeal space, 710 Chipault's method of craniocerebral locali- zation, 546 Bell's cyrtometer in, 551 operation for spina bifida, 683 Cholecystectomy, 1029 Cholecystenterostomy by Murphy button, 1026 by simple suturing, 1028 Cholecystolithotrity, 1028 INDEX 1189 Cholecystectomy, oblique or vertical sub- costal incision, 1024 Cholecystotomy, vertical subcostal incision, 1022* Choledochostomy, transduodenal, 1034 Choledochotomy, retroduodenal, 1034 supraduodenal, 1031 Chondroplastic resection of chest-wall, 734 Chopart's disarticulation of foot, 409 Circumcision, n 12 Cirrhosis of liver, operation for, 102 1 Clamp and cautery for hemorrhoids, 946 Clavicle, excision of, 4S0, 481 Coccyx, excision of, 468 Cock's method of external perineal ureth- rotomy, 1 1 26 Coffey's method of entero-enterostomv, §§ 3 Colopexy, Bryant's method, 932 Colostomy, 916 inguinal, left, 917 for permanent artificial anus, 919 for temporarv fecal fistula, 918 intramuscular, anterior, 921 lumbar, left, 924 Mixter's method of, 921 Compression of nerve, operation for, 169 Connell's method of entero-enterostomv, 864 Convolution, frontal, ascending, topography of, 541 inferior, topography of, 541 middle, topography of, 541 superior, topography of, 541 parietal, .ascending, topography of, 541 Cooper's metallic amputation retractors, 293 Cranial contents, relations of, to cranial bones, 554 landmarks, 537 Craniectomy, partial, 581 Craniocerebral localization, Chipault's method, 546 Bell's cyrtometer in, 550 Kroenlein's method, 553 Reid's method, 551 operations, instruments for, 557 surgical considerations, 554 region, operations upon, 533 topography, 538 Craniotomy, 557 circular, 558 for fracture of skull, 590 linear, 580 varieties of, 558 Crile and Matas' operation for regional anesthesia, 169 Crura cerebri, function of, 545 Crural nerve, anterior, anatomy of, 205 exposure of, below Poupart's liga- ment, 205 ( 'unciform osteotomy, 214 Cushing's exposure of Gasserian ganglion, 175 method of uretero-ureterostomy, 1080 right-angled continuous suture of intes- tine, 846 Cyrtometer, Bell's, in Chipault's cranio- cerebral localization, 550 Cystectomy, partial, 1109 total, 1 1 10 Cysticotomy, 1035 Cystorrhaphy, 1103 Cystotomy, 1096 lateral perineal, for vesical calculus, 1099 median perinal, for vesical calculus, 1 102 suprapubic, 1096 Czerny-Lembert entero-enterostomy by interrupted suture, 867 interrupted suture of intestine, 844 Czerny's method of exposing tonsil, 720 D'Urso and Fabii's modification of Mon- ari's method of uretero-ureterostomv, 1083 ; Dawbarn's method of closing appendix in appendicectomy, 907 Dental nerve, inferior, anatomy of, 191 exposure of, at mental foramen, 193 in mouth, 191 through ascending ramus of inferior maxilla, 192 De Yilbiss' forceps, 563 Diaphragm, anatomy of, 755 exposure of, transthoracic, 756 operations upon, 755 Dilatation of cardiac orifice of stomach, 987 of esophagus, direct, for stricture, 716 retrograde, for stricture, 716 Disarticulation at ankle-joint, general con- siderations, 413 at elbow-joint, anterior ellipse, 362 in general, 362 long antero-internal and short postero- external flaps, 364 posterior ellipse, 363 at hip-joint, anterior racket method, 459 external racket method, 458 general considerations, 452 Wyeth's method, 456 at knee-joint, 433 bilateral hooded flaps, 434 by oblique curved incision, 435 general considerations, 432 at shoulder-joint, 377 anterior racket method, 378 external or deltoid flap, 382 racket method, 381 general considerations, 374 at wrist-joint, anterior ellipse, 351 external lateral, or radial flap, 353 general considerations, 350 in general, 350 palmar flap, 352 of fingers and thumb at carpometacarpal articulation, 348 at first interphalangeal joint, by palmar Hap, 331 by short dorsal and long palmar flaps, 331 in general, 331 1 190 INDEX Disarticulation of fingers at metacarpo- phalangeal joints, in general, 33 2 oval method, 332 at second interphalangeal joint, by palmar flap, 329 by short dorsal and long palmar flaps, 329 in general, 329 excluding thumb, with metacarpals, 348 index, at metacarpophalangeal joint, 335 with metacarpal, 344 inner, with metacarpal, 344 little, at metacarpophalangeal joint, 336 with metacarpal, 344 three innermost, with metacarpals, 346 inside, with metacarpals, 346 two contiguous inside, with metacar- pals, 346 with metacarpals, 343 of foot, anterior part, at mediotarsal joint, 409 at ankle-joint, heel flap, 414, 415 in general, 414, 415 at subastragaloid joint, 410 heel flap, 4 1 2 large internoplantar flap, 410 of lower extremity, 385 of thumb at metacarpophalangeal joint, oblique palmar flap, 335 oval method, 334 with metacarpal, 345 of toes, at first interphalangeal joints, 390 oval method, 390 at metatarsophalangeal joints, 392 at second interphalangeal joint, 389 plantar flap, 389 at tarsometatarsal joints, by short dorsal and long plantar flaps, 407, 408 en masse, at metatarsophalangeal joint, 395 _ general considerations, 386 great, at metatarsophalangeal joint, 393 with metatarsal, 404 little, at metatarsophalangeal joint, 394 with metatarsal, 406 second, third, or fourth, at metatarso- phalangeal joint, 392 two adjoining, at metatarsophalangeal joint, 395 two or three contiguous, with meta- tarsals, 407 with metatarsals, 403, 404 of upper extremity, 323 Discission of pleura in chronic empyema, Ransohoff's operation, 771 Dislocations complicating fractures, opera- tive treatment of, 232 of semilunar cartilages, operation for, 244 of spine, operative treatment, 672 Divulsion of pvloric orifice of stomach, Loreta's operation, 986 Dollinger's operation for spina bifida, 683 Dorsahs pedis artery, anatomy of, 107 ligation of, 107 Doyen's brace, 566 c nisei, 563 electric-motor drill and saw, 572 saw, 555 Drainage in amputations, 300 of pancreatic cavities, 1046 of subarachnoid space, spinal puni ture for, 670 vesical, it 08 Dubrueil's method of disarticulation at wrist-joint, 353 Dura mater, venous sinuses of, 536 Ear, operations upon, 618 speculum, introduction of, for exami- nation of membrana tympani, 618 Edebohl's method of nephropexy, 1064 Ejaculatory ducts, anatomy of, 1138 Elbow-joint, anatomy of, 359 disarticulation at, 362 general considerations, 361 excision of, 494 Empyema, chronic, discission of pleura in, Ransohoff's operation, 771 End-to-end entero-enterostomy by per- forating mattress sutures knotted in lumen, 864 Enterectomy, partial, 849 Entero-enterostomy, 854 by absorbable bobbins, 879 mechanical devices left within intestine, 878 by Coffey's method, 883 by Connell's method, S64 by Czerny-Lembert interrupted suture, 867 by Halsted's method of interrupted mattress sutures, 868 by Harrington's segmented rings, 893 by Lee's intestinal holder, 895 by Maunsell's invagination method, 870 by mechanical means, 895 by Murphy button, 885 by non-absorbable mechanical devices left within intestinal canal, 884 by simple continuous suture of all coats, followed by interrupted or continuous Lembert sutures of outer coats, 856 suturing, 855 by Ullmann's modification of Maunsell's operation, 881 end-to-end, by perforating mattress su- tures knotted in lumen, 864 lateral, by Jaboulay button, 892 Enteroplasty, 930 Enterorrhaphy, 841 by continuous suture of all coats, followed bv interrupted Lembert suturing of outer coats, 848 bv Cushing's right-angled continuous suture, 846 INDEX 1191 Enterorrhaphy by Czerny-Lembert inter- rupted suture, S44 by Halsted's interrupted quilt or mattress- suture, 845 bv Lembert's continuous suture, 846 interrupted suture, 843 for wounds of intestine, 848 Enterostomy, 913 inguinal, right, for permanent artificial anus, 914 for temporary fecal fistula, 914 Enterotomy, 841 Enucleation of eyeball, 615 Epididymes, anatomy of, 1136 Epiphyses, separated, operative treatment of, 232 Epiplopexy for cirrhosis of liver, 102 1 Epiplorrhaphv for cirrhosis of liver, 102 1 Erasion of joint, 242 Esophageal bougie, introduction of, 715 Esophagectomy, cervical, partial, 714 Esophagoscopy, 715 Esophagostomy, cervical, 714 Esophagotomy, cervical, external, 712 internal, 715 thoracic, by posterior mediastinal osteo- plastic flap operation, 792 Esophagus, anatomy of, - 1 1 dilatation of, direct, for stricture, 716 foreign bodies in, operation for, 715 operations upon, 711 general considerations, 712 instruments for, 7 1 2 stricture of, division, by string friction, Abbe's operation, 716 direct dilatation for, 716 divulsion of, 716 division, by string friction, Bryant's operation, 716 permanent tubage, 716 retrograde dilatation for, 716 divulsion of, 716 Estlander's thoracoplastic operation, 765 Eustachian catheter, introduction of, 619 tube, operations upon, 61 S Evisceration of eyeball, 616 Excision, 463 of ankle-joint, 510 external curved and internal angular incisions, 5 1 1 transversely curved external incision, 5 11 of astragalus, external angular and inter- nal curved incision, 508 curved incision, 507 of bones and joints about foot, 507 about toes, 505 of breast, female, ordinary, 745 partial, 737 radical, Halsted's operation, 741 Mever's operation, 738 Warren's operation, 744 subcutaneous, 746 of bursae, 270 of cervical sympathetic ganglia and cord, total, 209 Excision of clavicle, 480, 481 of coccyx, 468 of elbow-joint, 494 by posterior bayonet-shaped incision, median incision, 495 by vertically curved dorso-external incision, 498 of femur, 526 diaphysis, parts of, 526 of fibula, 519 by posterior vertical incision, 520 of fingers, 483 first interphalangeal joints, 487 first phalanges, 487 metacarpals, 488 metacarpophalangeal joints, 487 second interphalangeal joints, 484 terminal phalanges, 484 general considerations, 463 of hand, 487 of hemorrhoids, Whitehead's operation, 945 . . of hip-joint, 526 .by anterior straight incision, 529 by external straight incision, 528 bv posterior angular or curved incision, 53° of humerus, 500 long external incision, 501 of ileocecum, 899 of index-finger, second interphalangeal joint, 486 second phalanx, 486 of innominate bone, 531 of knee-joint, 521 by curved transverse anterior incision, 5 22 by vertically curved external incision, '5 2 3 of little finger, metacarpal, 489 second phalanx, 48 7 of maxilla, inferior, 477 anatomy involved in, 475 superior, anatomv involved in, 469 median incision, 471 of nerve, 158 of os calcis, 510 of parotid gland, 722 of patella, 520 of radio-ulnar articulation, superior, 500 of radius, 494 total, 494 of rectum, 935. See also Rectrectomy. of ribs, 479 and costal cartilage, 480 of scapula, 48] total, 482 of scrotum, partial, 11 29 of seminal vesicles and part of ejaculatory ducts. Young's operation, 1139 of shoulder-joint, 501 anterior oblique incision, 502 of sublingual gland through floor of mouth, 726 of submaxillary gland, 725 1192 INDEX Excision of tarsus, 5 1 8 of temporomaxillary articulation, 476 of tendon-sheaths, 267 of thumb, metacarpal, 489 of tibia, 518 by internal vertical incision, 519 of toes, first interphalangeal joints, 506 first phalanges, 507 metatarsal bones, 507 metatarsophalangeal joints, 507 second interphalangeal joints, 506 second phalanges, 506 terminal phalanges, 506 of tongue, 619 general considerations, 620 instruments for, 621 limited portions, 621 through mouth after preliminary ligation of lingual arteries, 624 without preliminary ligation of lingual arteries, 622 together with cervical and submaxil- lary glands, 627 with osteoplastic division of inferior maxilla, 624 of ulna, 493 total, 493 of veins, 145 of wrist-joint, 489 by radial and ulnar dorsal incision, 490 by single dorsoradial incision, 491 dorso-ulnar incision, 492 open method, 467 subperiosteal, 464 Exenteration of orbit, 616 Eyeball, enucleation of, 615 evisceration of, 616 operations upon, 614 Facial artery, anatomy of, 40 ligation of, 41 nerve, anatomy of, 194 exposure of, in front of mastoid pro- cess, 195 topography of, 542 paralysis, peripheral, facio-accessory anastomosis for, 196 Fallopian tubes, anatomy of, 1159 Farabeuf's disarticulation at elbow-joint, 362 of foot, 410 of great toe, 393 of index-finger at metacarpophalan- geal joint, 335 of little finger at metacarpophalangeal joint, 336 toe, 394 of thumb at metacarpophalangeal joint, 335 method of amputating leg at lower third, 420 at upper third, 425 Facio-accessory anastomosis for peripheral facial paralysis, 196 Facio-hypoglossal anastomosis for periph- eral facial paralysis, 196 Fascia in amputation, treatment of, 297 operations upon, 269 Easciotomy, 269 by open method, 269 by subcutaneous method, 269 Fecal fistula, closure of, operation for, 927 temporary, left inguinal colostomy for, 918 right inguinal enterostomy for, 914 Femoral artery, anatomy of, 91 common, ligation of, 93 superficial, ligation of, 96 hernia, 1174. See also Hernia, femoral. Femur, excision of, 526 Fergusson's excision of superior maxilla, 471 Fibula, excision of, 519 Finger, index-, disarticulation of, at meta- carpophalangeal joint, 335 with metacarpal, 344 second interphalangeal joint, excision of, 486 second phalanx, excision of, 486 inner, disarticulation of, with metacarpal, 344 little, amputation of, with part of meta- carpal, 342 disarticulation of, at metacarpophalan- geal joint, 336 with metacarpal, 344 metacarpal of, excision, 489 second phalanx, excision of, 487 Fingers, amputation of, at first phalanx, 331 at last phalanx, 327 at second phalanx, 330 excluding thumb, with parts of meta- carpals, 343 general surgical considerations, 325 with parts of metacarpals, 341 anatomy of, 323 and thumb, disarticulation of, at carpo- metacarpal articulation, 348 disarticulation of, at first interphalangeal joint, 331 at metacarpophalangeal joints, 332 at second interphalangeal joint, 329 excluding thumb, with metacarpals, 348 with metacarpals, 343 excision of, 483 of first interphalangeal joints, 487 of first phalanges, 487 of metacarpals, 488 of metacarpophalangeal joints, 487 of second interphalangeal joint, 484 of second phalanges, 486 of terminal phalanges, 484 three innermost, amputation of, with parts of metacarpals, 343 disarticulation of, with metacarpals, 34° inside, amputation of, with parts of metacarpals, 342 disarticulation of, with metacarpals, 346 INDEX "93 Fingers, two contiguous inside, amputation of, with parts of metacarpals, disarticulation of, with metacar- pals, 346 Finnev's method of gastroduodenostomv, .9 S 7' Fissure, frontal, inferior, topogarphy of, 540 superior, topography of, 540 intraparietal, topography of, 540 longitudinal, great, anatomy of, 533 topography of, 539 mesial, and lobes of cerebrum, 534 of cerebrum, 533 parietooccipital, anatomy of, 534 topography of, 540 postcentral, topography of, 540 precentral, topography of, 540 Rolandic, anatomy of, 534 Chiene's method of determining, 554 topography of, 539 Sylvian, anatomy of, 533 topography of, 539 temporosphenoidal, superior, topography of, 541 transverse, great, topography of, 539 Fistula, fecal, closure of, operation for, 927 temporary, left inguinal colostomy for, 918 ' right inguinal enterostomy for, 914 Fistula-in-ano, operation for, 947 Foot, amputations about, general considera- tions, 401 anatomy of, 397 anterior part, disarticulation of, at medio- tarsal joint, 409 disarticulation of, at ankle-joint, 414, 415 at subastragaloid joint, 410 excision of bones and joints about, 507 osteoplastic resection of, externolateral curved incision, 518 transversa upper and lower and oblique lateral incisions, 516 Foramen of Winslow, anatomy of, 820 Forcipressure, arterial, 140 venous, 145 Forearm, amputation of, 356 general considerations, 355 anatomy of, 353 Foreign bodies in esophagus, operation for. 715 in larynx, operation for removal of, 702 in trachea, operation for removal, 707 Fowler's method of inferior anterolateral abdominal section, 818 of ureterorectostomy, 1086 thoracoplastic operation, 770 Fracture-dislocations of spine, operative treatment, 673 Fractures, comminuted, operative treatment of, 230 complicated, operative treatment of, 231 compound, operative treatment of, 230 delayed union of, operations for, 228 dislocations complicating, operative treat- ment of, 232 Fractures involving joints, operative treat- ment of, 231 mal-union of, operations for, 229 non-union of, operations for, 229 of skull, trephining for, 590 of spine, operative treatment, 670 operative treatment, in general, 214 simple, operative treatment of, 225 ununited, of olecranon, operation for, by wiring or suturing of bone and soft parts, 238 of patella, operation for, by encircling suture of soft parts, 236 by suturing of soft parts, 233 by wiring or suturing of bone and soft parts, 234 Stimson's operation for, 233 operation for, by combined ligature and suture, 224 by frame ligature of bone, 224 by intramedullary pegging, 224 by ligation of bone, 223 by metallic nails or ivory pegs, 221 or bone ferrules, 222 plates and screws or screws, 222 Parkhill's clamp, 227, by resection of ends of bones, 215 by suturing of ends of bones, 217 Frontal convolution, ascending, topogra- phy of, 541 inferior, topography of, 541 middle, topography of, 541 superior, topography of, 541 fissure, inferior, topography of, 540 superior, topography of, 540 sinuses. See Sinuses, frontal. Gall-bladder, anatomy of, 102 1 operations upon, 102 1 general considerations, 1022 instruments for, 1008 Gall-ducts, anatomy of, 1030 operations upon, 1030 general considerations, 103 1 instruments for, 103 1 Ganglion, basal, topography of, 541 cervical sympathetic, and cord, anatomv of, 208 total excision of, 209 Gasserian, anatomy of, 175 exposure of, by direct infra-arterial route, 175 by orbital route, 1S6 by trephining through pterygo- maxillarv fossa, 181 through temporal fossa, 177 maxillary, anatomy of, 188 Meckel's, anatomy of, 182 exposure of, by antral route, 185 by pterygomaxillary route, 186 operations upon, 157 otic, anatomy of, 188 Gasserian ganglion, anatomy of, 175 exposure of, by direct infra-arterial route, 175 ir 9 4 INI MX Gasserian ganglion, exposure of, by tre- phining through pterygomaxillary fossa, i Si through temporal fossa, 177 Gastrectomy, partial, of median portion, 999 total, 1001 Gastric ulcer, operation for, 1002 perforated, operation for, 1003 Gastroduodenostomy, Finney's operation, 987 Gastroenterostomy, 967 anterior, by Murphy button, followed by Jaboulay-Braun method of intes- tinal anastomosis, 971 Wolfler's operation, 968 posterior, by Murphy button, 978 by von Hacker's method, 974 Gastrogastrostomy, Wolfler's method, 979 Gastrolysis, 983 Gastropexy, 983 Gastroplasty, 984 Gastroplication, 981 Moynihan's modification of Bircher's operation for, 983 Weir's modification of Bircher's operation for, 981 Gastrorrhaphy, 955 Gastrostomy, 956 Albert's method, 959 Hahn's method, 959 Kader's method, 964 Marwedel's method, 962 Ssabanajew-Franck's method, 957 Witzel's method, 959 Gastrotomy by median incision, 952 by oblique subcostal incision, 954 Genital organs, female, operations upon, 1147 male, operations upon, 1 1 1 1 Gimbernat's ligament, anatomy of, 1163 Gliick's method of arteriorrhaphy, 123 Gluteal artery, anatomy of, 87 ligation of, 87 nerve, superior, exposure of, 205 Gouley's method of external perineal ure- throtomy, 1 1 24 Grafting, bone-, 227 nerve-, 165 omental, 832 tendon-, 261 Gritti-Stokes' method of amputating thigh, 441 Gunshot wounds of spinal cord, operative treatment of, 675 Gustatory nerve, anatomy of, 193 exposure of, in mouth, 104 Guvon's supramalleolar method of ampu- tating leg, 419 Gyrus, angular, topography of, 541 Haasler's method of retroduodenal chole- dochotomy, 1034 Hacker's method of posterior gastroenter- ostomy, 974 Hahn's method of gastrostomy, 959 Halsted's interrupted mattress-suture of intestine, 845 method of appendicectomy, 910 of entero-enterostomy by interrupted mattress-sutures, 868 operation for oblique inguinal hernia, 1171 radical excision of breast, 741 Hand, amputation about, general consider- ations, 339 anatomy of, 336 excision of, 487 Harrington's segmented rings, entero-enter- ostomy by, 893 Harrington-Weir method of anterolateral abdominal section, 810 Hartley-Krause exposure of Gasserian gan- glion, 177 Hartley's double osteoplastic flaps, 583 electric motor, 575 method of ligating intercostal artery, 78 preliminary excision of spinous process in osteoplastic resection of spine, 647 sterilizable compressed-air motor, 576 Head and face, bony air sinuses of, opera- tions upon, 600 operations upon, 533 Heart, anatomy of, 785 and pericardium, exposure of, by excision of left fifth costal cartilage, 784 by thoracoplastic flap, 788 operations upon, 785 puncture of, 787 right auricle of, paracentesis of, 787 ventricle of, paracentesis of, 787 suture of, 790 Heineke-Mikulicz method of pvloroplastv, 984 Hemorrhage, cerebral, artery of, 535 control of, in amputations, 272 intracranial, operation for, 585 Hemorrhoids, clamp and cautery for, 946 excision of, Whitehead's operation, 945 ligation and excision of, Allingham's method, 944 Henle's internal cremaster, anatomy of, 1136 Hepatectomy, partial, 1019 Hepaticotomy, 1036 Hepatopexy, 10 19 Hepatorrhaphy, 1019 Hepatotomy, 1009 anterior subcostal transperitoneal, 1010 Hernia, femoral, anatomy of, 1 1 74 Bassini's operation for, n 76 operations for, 1174 for radical cure of, 1176 upon, general considerations, 11 76 inguinal, anatomy of, 1163 oblique, Bassini's operation for, 1166 Halsted's operation for, 1171 operation for radical cure of, 1166, 1171 operations for, 1163 general considerations, 1164 instruments in, 1166 INDEX 11 95 Hernia, operations for, 1163 umbilical, anatomy of, 1 1 78 Mayo's operation for, 1181 operations for, 11 78 for radical cure of, excision of sac, 1179 Hey's disarticulation of toes, 408 method of amputating leg at middle third, 424 Hip-joint, anatomy of, 450 disarticulation at, general considerations, 45? excision of, 526 Humerus, excision of, 500 Hydrocele, Jaboulay's operation for, 1132 Yolkmann's operation for, 1131 Von Bergmann's operation for, 1133 Hypochondriac regions, exposure of, by chondroplastic resection of chest-wall, 819 Hysterectomy, abdominal, partial, 1151 total, 1 153 vaginal, total, 1153 Hysterosalpingo-obphorectomy, abdominal, partial, 1151 total, 1 153 Ileocecum, excision of, 899 Ileostomy for permanent artificial anus, for temporary fecal fistula, 914 Iliac artery, common, anatomy of, Si ligation of, 81 external, anatomy of, 88 ligation of, 89 internal, anatomy of, 83 ligation of, 84 Implantation, bone-, 227 intestinal, 854. See also Entero-enter- ostomy. nerve-, 165 of ureter, 1084 into bladder, 1085 into large intestine, 1086 upon skin, 1089 tendon-, 261 Infiltrator, Matas', 172 Infra-orbital nerve, exposure of, 188 Inguinal hernia, 1163. See also Hernia, inguinal. lymphatic glands, anatomy of, 155 removal of, 156 Innominate artery, anatomy of, 27 ligation of, 27 bone, excision of, 531 Intercostal artery, anatomy of, 76 ligation of, 76 nerve, anatomy of, 204 exposure of, between angle and middle of rib, 204 thoracotomy, 761 Interilio-abdominal amputation, 460 Intestinal anastomosis, 854. See also Entero-enter ostomy. approximation, 854. See also Entero- enterostomy. Intestinal implantation, 854. See also Enter o-enteroslomy . Intestines, adhesions to, operations for, 824 large, anatomy of, 836 implantation of ureters into, 1086 operations upon, 833 general considerations, 840 instruments for, 840 small, anatomy of, 833 suture of, S41. See also Enter orrhaphy. wounds of, enterorrhaphy for, 848 Intraneural infiltration for regional anes- thesia, 169 Matas and Crile's operation, 169 Intra-orbital structures, exposure of, 617 Intraparietal fissure, topography of, 540 Intravenous infusion of salt solution, 146 Intubation of larynx, 701 Intussusception, Jessett-Barker operation for, 930 operation for, 930 Island of Reil, anatomy of, 534 topography of, 541 Jaboulay-Braun's method of multiple lateral intestinal anastomosis, 891 Jaboulay's button, lateral intestinal anastomosis by, 892 operation for hydrocele, 1132 Jessett-Barker operation for intussuscep- tion, 930 Jobert's operation for ligating popliteal artery, 100 Joints, erasion of, 242 fractures involving, operative treatmeat of, 231 operations upon, 241 osteoplastic resection of, 468 puncture of, exploratory, 241 Jonnesco's operation for excision of cervical sympathetic ganglia and cord, 209 Kader's method of gastrostomy, 964 Keen's interilio-abdominal amputation, 460 operation for exposure of posterior divisions of first, second, and third cervical nerves, 197 Kidneys, anatomy of, 1048 exposure of, by abdominolumbar opera- tion, 1059 extraperitoneal, and entire ureter, 1076 retroperitoneal, by Koenig's angular lumbo-abdominal incision, 1056 by lumbar intramuscular method, 1057 by oblique lumbar incision, 1053 transperitoneal, by median abdominal section, 1059 by vertical incision in linea semi- lunaris, Langenbuch's operation, 1057 operations upon, 1048 general considerations, 1052 instruments for, 1053 1196 INDEX Kidneys, puncture of, exploratory, 1060 suture of, 1063 King's scrotal (lamp, 1130 Knee-joint, anatomy of, 430 disarticulation at, 433 general considerations, 432 excision of, 521 Kocher's excision of elbow-joint, 498 of hip-joint, 530 of knee-joint, 523 of tongue, together with cervical and submaxillary glands, 627 of wrist-joint, 492 incision of innominate bone, 531 median excision of tongue, 624 method of complete thyroidectomy, 729 of exposing inferior maxillary nerve, 188 superior maxillary nerve, 183 of partial thyroidectomy, 727 of pharyngotomy, 708 of pylorectomv, 994 of transduodenal choledochostomy, resection of shoulder-joint, 503 Koenig's method of exposing kidney, 10^6 Kraske's method of rectectomy, 935 Kroenlein's method of craniocerebral local- ization, 553 of exposure of intra-orbital and retrobulbar structures, 617 Lambotti's operation for Pott's disease, 691 Laminectomy, 661 general considerations, 642 Langenbeck's excision of elbow-joint, 495 of hip-joint, 528 osteoplastic resection of superior maxilla, 474 Langenbuch's method of exposing kidnev, io 57 Lange's operation for uniting tendon to periosteum, 263 Larry's disarticulation at shoulder-joint, 38i Laryngectomy, complete, 699 partial, 700 Laryngoscopy, 702 Laryngotomy, 697 suprathyroid, 702 Laryngotracheotomv, 702 Larynx, anatomy of, 695 artificial, introduction of, 702 foreign bodies in, operation for, removal of, 702 intubation of, 701 operations upon, 695 tamponing of, 702 Lauenstein's excision of ankle-joint, 5 1 1 Lee's intestinal holder, entero-enterostomy by, 895 Leg, amputation of, at lower third, 420 femorotibial osteoplastic, 443 general considerations, 418 middle third, 424 Leg, amputation of, osteoplastic, 422 at upper third, 429 supramalleolar region, 419 upper third, 425 bilateral hooded flaps, 427 anatomy of, 416 Lembert's continuous suture of intestine, 846 interrupted suture of intestine, 843 Ligaments, broad, of uterus, anatomy of, 1 148 lengthening of, 268 operations upon, 268 round, of uterus, anatomy of, 1149 shortening of, 268 suturing of, 268 Ligation of abdominal aorta by retroperi- toneal operation, 80 by transperitoneal method, 79 of artery, 1 7 after-treatment, 26 closure of wound, 26 comment, 26 control of circulation preliminary to, 18 dangers, 26 en masse, 118 for radical cure of aneurism, 139 general considerations, 17 in amputation, 295 incision, 19 indications, 18 instruments for, 17 intermediate, 118 materials for, 18 passing ligature, 22 position of patient, 17 preparation, 17 provisional, 118 results, 26 temporary, 118 tying ligature, 24 varieties, 17 of axillary artery, first part, 60 third part, 60 of brachial artery, at bend of elbow, 65 in middle of arm, 64 of carotid artery, common, 34 above omohyoid muscle, 34 below omohyoid muscle, 35 external, above digastric muscle, 38 below digastric muscle, 37 internal, near origin, 50 of dorsalis pedis, just below ankle-joint, 107 of facial artery, near origin, 41 over inferior maxilla, 41 of femoral artery, common, at base of Scarpa's triangle, 93 superficial, at apex of Scarpa's triangle, 96 in Hunter's canal, 98 of gluteal artery, on buttock, 87 of iliac artery, common, by retroperi- toneal operation, 81 by transperitoneal operation, 83 INDEX 1197 Ligation of iliac artery, external, by retro- peritoneal route, 89 by transperitoneal method, 91 internal, by retroperitoneal opera- tion, 84 by transperitoneal operation, 84 of innominate artery, 27 Bardenheuer's method, 31 by angular incision, 27 by oblique incision, 30 by partial bony resection through transverse and vertical incisions, 3 1 . by splitting of manubrium sterni, 31 Mutt's method, 27 of intercostal artery by intercostal inci- sion, 76 by subperiosteal excision of rib, 78 of lingual artery, beneath hypoglossus, 39 near origin, 39 of mammary arterv, internal, in second intercostal space, 58 of meningeal artery, middle, anterior branch, 48 posterior branch, 49 trunk of, 47 of occipital artery, behind mastoid process, 42 near origin, 42 of omentum, 831 of peroneal artery, in middle of leg, 114 of plantar arterv, external, in sole of foot, I if) internal, at origin, 1 1 7 in sole of foot, 117 of popliteal artery, in lower part, 101 in upper part, 100 of profunda femoris, near origin, 95 of pudic artery, internal, in perineum, 85 upon buttock, S5 of radial artery, deep palmar arch, 72 in lower third of forearm, 70 in upper third of forearm, 69 of sciatic artery, upon buttock, 84 of sinus, lateral, 586 of subclavian artery, left, first portion, 52 right, first portion, 52 second portion, 53 third portion, 53 of temporal artery, just above zygoma, 43 of thoracic duct, 149 of thyroid artery, inferior, 57 of tibial atery, anterior, in lower third 106 in middle third, 105 in upper third, 104 posterior, behind internal malleolus, 112 in lower third, 112 in middle third, no in upper third, 109 of ulnar arterv, in lower third of forearm, .76. in middle third of forearm, 73 of veins, en masse, 145 in amputation, 295 Ligation of veins, lateral, 143 temporary, 144 transverse, 144 of vertebral artery, near origin, 55 Ligature, passing, in ligation of artery, 22 tying, in ligation of artery, 24 Linea alba, anatomy of, 796 Linear craniotomy, 580 osteotomy by open method, 213 by subcutaneous method, 211 Lingual artery, anatomy of, 38 ligation of, 39 nerve, anatomy of, 193 exposure of, in mouth, 194 Lisfranc's disarticulation of toes, 407 Lister's modification of Carden's amputa- tion of thigh, 440 Litholapaxy, 1104 Lithotrity, 1104 Liver, anatomy of, 1004 cirrhosis of, operation for, 102 1 exposure of, by anterior subcostal trans- peritoneal route, 10 1 2 by chrondroplastic resection of right costal arch, 1017 by lateral subcostal transperitoneal route, 1013 by subpleural route, 1014 by transpleural route, 1016 operations upon, 1004 general considerations, 1006 instruments for, 1008 puncture of, exploratory, 1008 suture of, 1019 Lobe, occipital, topography of , 541 parietal, topography of, 541 temporal, topography of, 541 Lobuli testis, anatomy of, n 29 j Loreta's method of divulsion of pyloric orifice of stomach, 986 Lumbar puncture for diagnosis and thera- peusis, 669 Lungs, anatomy of, 772 operations upon, 772 Lymphatic glands, axillary, anatomy of, 154 removal of, 155 inguinal, anatomy of, 155 removal of, 156 of neck, isolated, removal of, 153 removal of, 751 operations upon, 148 trunk, axillary, anatomy of, 154 vessels, operations upon, 148 Macewen's operation for radical cure of aneurism, 139 trephining-brace, 556 Mammary arterv, internal, anatomy of, 57 ligation of, 58 gland, female, operations upon, 736. See also Breast, female. Marion's gigli-saw conductor, 569 Markoe's method of uretero-ureterostomv, to8i Marwedel's method of gastrostomy, 962 1198 INDEX Mastoid antrum, anatomy of, 600 exposure of, antrum operation of Schwartze, 604 Schwartze-Stacke operation, 606 operations upon, 600 general considerations, 603 instruments for, 604 cells, anatomy of, 600 operations upon, 600 exposure of, antrum operation of Schwartze, 604 Schwartze-Stacke operation, 606 general considerations, 603 instruments for, 606 Matas and Crile's operation for regional anesthesia, 169 Matas' infiltrator, 172 method of paraneural infiltration for regional anesthesia, 171 modification of Schleich's method of massive infiltration anesthesia, 172 operation for radical cure of aneurism, Matas-Bickham operation for radical cure of arteriovenous aneurism, 133 Maunsell's invagination method of entero- enterostomy, S70 Maxilla, inferior, excision of, 477 anatomy involved in, 475 osteoplastic resection of, 479 osteoplastic resection of, Annandale's method, 474 Langenbeck's method, 474 superior, excision of, anatomy involved in, 469 median incision, 471 osteoplastic resection of, 473 Maxillary ganglion, anatomy of, 188 artery, internal, anatomy of, 44 nerve, inferior, anatomy of, 188 exposure of, at foramen ovale, 188, 190 superior, anatomy of, 182 exposure of, at foramen rotundum, 183, 190 by antral route, 185 by orbital route, 186 by ptervgomaxillarv route, 186 sinuses. See Sinuses, maxillary. Mayo's method of pylorectomy, 991 operation for umbilical hernia, 1181 McBurney's method of anterolateral abdominal section, 807 of appendicectomy, 900 point, 808 Meatotomy, 11 20 Meckel's ganglion, anatomy of, 182 exposure of, by antral route, 185 by orbital route, 186 by ptervgomaxillarv route, 186 Median nerve, anatomy of, 201 exposure of, at bend of elbow, 202 in middle of arm, 201 Mediastinotomy, Milton's method of, 748 Mediastinum, anterior, anatomy of, 748 operations upon, 748 Mediastinum, middle, anatomy of, 752 operations upon, 752 posterior, anatomy of, 752 operations upon, 752 superior, anatomy of, 747 operations upon, 747 Medulla, function of, 545 Membrana tympani, anatomy of, 618 introduction of ear speculum for examination of, 618 Meningeal artery, middle, anatomy of, 44, 535 anterior branch, ligation of, 48 posterior branch, ligation of, 49 trunk of, ligation of, 47 topography of, 542 Mesentery, anatomy of, S33 operations upon, 833 general considerations, 833 Meyer's radical excision of breast, 738 Mid-tarsus, osteoplastic resection of, 514 Mikulicz's method of exposing tonsil, 720 Milton's osteoplastic anterior medias- tinotomy, 748 Mixter's method of colostomy, 921 of exposing inferior maxillary nerve, 190 Motor areas, localization of, 544 center, exposure of, operation for, 593 Mott's method of ligating innominate artery, 2 7 Moynihan's modification of Bircher's operation for gastroplication, 983 Murphy button, anterior gastro-enterostomy by, followed by Jaboulay-Braun method of intestinal anastomosis, 971 cholecystenterostomy by, 1026 entero-enterostomy by, 885 posterior gastro-enterostomy by, 978 Murphy's method of suturing arteries, 119 of treating diffuse septic peritonitis, 825 Muscle in amputation, treatment of, 297 Muscle-lengthening, 246 Muscles, operations upon, 245 suture of, 24O Musculospiral nerve, anatomy of, 203 exposure of, below middle of arm, 203 Myer's method of inferior anterolateral abdominal section, 817 Myorrhaphy, 245 Myotomy, 245 Nasal cartilages, chondroplastic resection of, 473 cavities, operations upon, 619 Nasolambdoidal line, topography of, 542 Neck, anatomy of, 695 anterolateral aspect, anatomy of, 149 lymphatic glands of, isolated, removal of > 153 removal of, 151 operations upon, 695 instruments for, 696 Needling for radical cure of aneurism, 139 INDEX 1199 Neoplasms, vascular, injection of water at high temperature in, 141 Nephrectomy, partial, by oblique lumbar incision, 1072 subcapsular, 1072 total, by anterior transperitoneal opera- tion, 1072 by oblique lumbar incision, 1070 Nephrolithotomy, 1062 Nephropexy by simple suturing, 1069 Edebohl's method, 1064 Turner's method, 106S Nephrorrhaphy, 1063 Nephrotomy, 1061 Nerve, crural, anterior, anatomy of, 205 exposure of, below Poupart's liga- ment, 205 dental, inferior, anatomy of, 191 exposure of, at mental foramen, 193 in mouth, 191 through ascending ramus of infe- rior maxilla, 192 excision of, 158 facial, anatomy of, 194 exposure of, in front of mastoid process, 195 topography of, 542 gluteal, superior, exposure of, 205 gustatory, anatomy of, 193 exposure of, in mouth, 194 in amputation, treatment of, 297 infra-orbital, exposure of, 188 intercostal, anatomy of, 204 exposure of, between angle and middle of rib, 204 lingual, anatomy of, 193 exposure of, in mouth, 194 maxillarv, inferior, exposure of, 188 at foramen ovale, 188, 190 superior, anatomy of, 182 exposure of, at foramen rotundum, 183, 190 by antral route, 185 by orbital route, 186 by pterygomaxillary route, 186 median, anatomy of, 201 exposure of, at bend of elbow, 202 in middle of arm, 201 musculospiral, anatomy of, 203 exposure of, below middle of arm, 203 obturator, exposure of, 205 popliteal, external, anatomy of, 207 exposure of, behind tendon of biceps, 207 internal, anatomy of, 206 exposure of, at lower part of popliteal space, 206 pudic, exposure of, 205 sciatic, great, anatomy of, 205 exposure of, at lower border of gluteus maximus, 206 spinal accessory, anatomy of, 195 exposure of, at anterior border of sternomastoid muscle, 195 supra-orbital, anatomy of, 182 exposure of, 182 Nerve, suture of, 160 tibial, anterior, anatomy of, 208 exposure of, near origin, 20S posterior, anatomy of, 207 exposure of, behind internal malleo- lus, 207 between origin and ankle, 207 trifacial, exposure of, by direct infra- arterial route, 175 by trephining through pterygo- maxillary fossa, 1S1 through temporal fossa, 177 ulnar, anatomy of, 202 exposure of, above internal condyle of humerus, 203 above middle of arm, 202 Nerve-anastomosis, 165 Nerve-avulsion, 159 Nerve-grafting, 165 Nerve-implantation, 165 Nerve-stretching, 158 Nerves, brachial plexus of, anatomy of, 19S exposure of, in neck, 198 cervical, first, second, third, posterior divisions, exposure of, 197 compression of, operation for, 169 operations upon, 157 Neurectasy, 158 Neurectomy, 158 intraspinal, partial, of posterior nerve- roots, 679 Neurolysis, 169 Neuroplasty, 163 Neurorrhaphy, 160 Neurotomy, 157 Nose, operations upon, 619 Obturator nerve, exposure of, 205 Occipital artery, anatomy of, 42 ligation of, 42 lobe, topography of, 541 O'Dwyer's method of intubation of larynx, ' OI Olecranon, fracture of, ununited, operation for, by wiring or suturing of bone and soft parts, 238 Ollier's excision of elbow-joint, 497 of wrist-joint, 490 Omentum, adhesions to, operations for, S24 anatomy of, 830 grafting with, 832 ligation of, 831 operations upon, 830 general considerations, 831 Oophorectomy, 1160 Orbit, anatomy of, 614 exenteration of, 616 Orchidectomy, 11 34 Os calcis, excision of, 510 Osteitis, vertebral tubercular, anterior, operative treatment of, 685 posterior, operative treatment of, 685 Osteoplastic amputations, 317 resection of foot, externolateral curved incision, 518 INDEX Osteoplastic resection of foot, transverse upper and lower and oblique lateral incisions, 516 of mid-tarsus, 514 of skull, 505 of spine, 648 formation and turning hack of flap in, 65 1 general considerations, 642 Hartley's preliminary excision of spinous process in, 647, 649 of tarsus and tarsometatarsus, 513 posterior, 515 Osteoplasty, 240 Osteotomy, 210 cuneiform, 214 indications for, 210 instruments for, 210 linear, by open method, 213 by subcutaneous method, 211 position in, 2 1 1 preparation of patient for, 211 varieties of, 210 Otic ganglion, anatomy of, 188 Ovariectomy, 1100 Ovaries, anatomy of, 1159 operations upon, 1159 Pancreas, anatomy of, 1043 operations upon, 1043 general considerations, 1044 instruments for, 1040 Pancreatectomy, partial, 3047 Pancreatic cavities, drainage of, 1046 Pancreatotomy by gastrocolic route, 1046 Paracentesis abdominis, 824 thoracis, 761 of right auricle of heart, 787 ventricle of heart, 7S7 pericardii, 781 tunica? vaginalis, 11 29 tympani, 619 vesicae, 1095 Paralysis, brachial birth, operation for, 199 facial, peripheral, facio-accessory anasto- mosis for, 196 Paraneural infiltration for regional anes- thesia, Matas' method, 171 Paravicini's intrabuccal method of exposing inferior dental nerve, 191 Parietal convolution, ascending, topog- raphy of, 541 lobe, topograph}- of, 541 Parieto-occipital fissure, anatomy of, 534 topography of, 540 Parkhill's bone-clamp, 223 Parkin's incision of cerebellar subarachnoid space for drainage, 595 Parotid gland, anatomy of, 721 excision of, 722 operations upon, 721 Patella, excision of, 520 fracture of, ununited, operation for, by encircling suture of soft parts, 236 Patella, fracture of, ununited, operation for, by suturing of soft parts, 233 by wiring or suturing of bone and soft parts, 234 Pelviotomy, 1062 Penis, amputation of, partial, n 14 total, 1 1 id operations upon, 1 1 1 1 instruments for, 11 n Pericardiocentesis, 781 Pericardiorrhaphy, 785 Pericardiotomy through intercostal incision, 782 Pericardium, anatomy of, 780 and heart, exposure of, by excision of left fifth costal cartilage, 784 by thoracoplastic flap, 788 operations upon, 780 puncture of, 781 suture of, 785 Perineal cystotomy, lateral, for vesical calculus, 1099 median, for vesical calculus, 1 102 prostatectomy, 1143 urethrotomy, external, Cock's operation, 1 1 26 Gouley's method, n 24 Syme's method, 1123 Wheelhouse's method, 11 25 Periosteum, uniting of tendon to, operation for, 263 Peritoneum, adhesions of, operations for, 822 anatomy of, 820 operations upon, 820 general considerations, 822 septic, diffuse, Blake's method of treating, 826 Murphy's method of treating, 825 operative treatment of, 825 Peroneal artery, anatomy of, 114 ligation of, 1 14 Pfannenstiel's method of median inferior abdominal section, 815 Pharyngotomy, lateral, 708 median, 708 subhyoid, 709 Pharynx, anatomy of, 707 operations upon, 707 instruments for, 707 Phlebectomy, 145 Phleborrhapl.v, 142 Phlebostrepsis, 145 Phlebotomy, 141 Pirogoff's disarticulation of foot at ankle- joint, 415 Plantar artery, external, anatomy of, 115 ligation of, 116 internal, anatomy of, 117 ligation of, 117 Pleuracentesis, 761 Pleura, anatomy of, 759 discission of, in chronic empyema, Ransohoff's operation, 771 operations upon, 759 puncture of, 761 INDEX Pleurectomy, partial, Estlander's method of, 765 Schede's method of, 768 total, Fowler's method of, 770 Pleurotomy, 761 Plexus, brachial, of nerves, anatomy of, 198 exposure of, in neck, 198 Plexuses, operations upon, 157 Pneumectomy, partial, through cutaneo- musculo-osseous thoracoplastic flap, 776 Pneumotomy through cutaneomuscular thoracoplastic flap, 774 Poggi's method of uretero-ureterostomy, 1081 Pons, function of, 545 Popliteal artery, anatomy of, 99 ligation of, 100 nerve, external, anatomy of, 207 exposure of, behind tendon of biceps, 207 internal, anatomy of, 206 exposure of, at lower part of pop- liteal space, 206 Postcentral fissure, topography of, 540 Pott's disease, Lambotti's operation for, 691 operative treatment of, 685 Treves' operation for, 687 Poupart's ligament, anatomy of, 1163 Precentral fissure, topography of, 540 Pressure of artery, 140 Proctectomy, 935. See also Rectectomy. Proctopexy, 933 Proctotomy, 934 Profunda femoris, anatomy of, 94 ligation of, 95 Prostate gland, anatomy of, 1140 operations upon, 1140 instruments for, 1141 Prostatectomy, 1 r4 1 Alexander's operation, 1144 perineal, 11 43 suprapubic, 1142 Prostatotomy, 1141 Psychical area, localization of, 545 Pudic artery, internal, anatomy of, 85 ligation of, 85 nerve, superior, exposure of, 205 Puncture and drainage of lateral ventricles of brain, 594 exploratory, of joints, 241 of kidney, 1060 of liver, 1008 of spleen, 1038 lumbar, for diagnosis and therapeusis, 669 of bladder, 1095 of brain, exploratory, 584 of bursie, 270 of heart, 787 of pericardium, 781 of pleura, 761 of tunica vaginalis, n 29 spinal, for drainage of subarachnoid space, 670 subarachnoid, for spinal analgesia, 666 Pyelotomy, 1062 76 Pylorectomy, 991 followed by end-to-end gastroenteros- tomy, Billroth's method, 997 followed by independent gastro- jejunostomy, Mayo's method, 991 followed by posterior gastroduodenos- tomy, Kocher's method, 994 Pyloric orifice of stomach, divulsion of, Loreta's operation, 986 Pyloroplasty, Heineke-Mikulicz method, 984 Radial artery, anatomy, 66 ligation of, 69 Radius, excision of, 494 total, 494 Radio-ulnar articulation, superior, excision of, 500 Ransohoff's method of discission of pleura in chronic empyema, 771 Re-amputation for improperly made flaps, 297 Rectectomy, 935 by perineal route, 942 by sacral route, 935 Kraske's method, 935 Rehn-Rydygier osteoplastic flap method, 940 Rectopexy, Verneuil's method, 933 Rectotomy, external, 934 internal, 934 posterior, 934 Rectum, anatomy of, 838 excision of, 935. See also Rectectomy. Rehn-Rydygier osteoplastic flap method of rectectomy, 940 Reid's method of craniocerebral localiza- tion, 551 Reil, island of, anatomy of, 534 topography, 541 Resection, chondroplastic, of chest -wall, 734 of nasal cartilages, 473 osteoplastic, of bones and joints, 468 of foot, externolateral curved incision, transverse upper and lower and oblique lateral incisions. 516 of lower jaw, 479 of mid-tarsus, 514 of shoulder-joint, 503 of skull, 565 of spine, 648 formation and turning back of flap in, 648 general considerations, 642 Hartley's preliminary excision of spinous process in, 647, 649 of superior maxilla, 473 Annandale's operation, 474 Langenbeck's operation, 474 of tarsus and tarsometatarsus, 513 posterior, 515 Retrobulbar structures, exposure of, 617 Retroduodenal choledochotomy, 1034 Retropharyngeal space, exposure of, 710 1202 INDEX Retzius' space, anatomy of, 1092 Rib and costal cartilage, excision of, 480 excision of, 471) Rivinus, ducts of, anatomy of, 726 Robson's method of uretero-ureterostomy, 1082 Rolandic fissure, anatomy of, 534 Chiene's method of determining, 554 topography of, 539 Rose's exposure of Gasserian ganglion, 1S1 Rotter's method of exposing heart and pericardium, 788 Rouge's chondroplastic resection of nasal cartilages, 473 Round ligaments of uterus, anatomy of, 1 149 Ruptured tendon-sheaths, repair of, 265 Salomoni and Tomaselli's method of arteriorrhaphy, 123 Salpingo-obphorectomy, 1160 Salpingo-ovariectomy, 1160 Salt solution, intravenous infusion of, 146 Scalp, anatomy of, 533 Scapula, excision of, 481 total, 482 Scarpa's fascia, anatomy of, 1163 triangle, anatomy of, 155 Schede's thoracoplasty operation, 768 Schopf's method of uretero-ureterostomy, 1080 Schwartze's antrum operation, 604 Schwartze-Stacke operation for exposing mastoid antrum and cells, 606 Sciatic artery, anatomy of, 84 ligation of, 84 nerve, great, anatomy of, 205 exposure of, at lower border of gluteus maximus, 206 Scrotum, anatomy of, 11 28 excision of, partial, 11 29 operations upon, n 28 Section, abdominal. See .4 bdominal section. Semilunar cartilages, dislocation of, opera- tion for, 244 Seminal vesicles, anatomy of, n 38 and part of ejaculatory ducts, total excision of, Young's operation, 1139 operations upon, 1138 instruments for, 1139 Sensory areas, localization of, 544 Sequestrotomy, 239 Shoulder-joint, anatomy of, 372 disarticulation at, 377 general considerations, 374 excision of, 501 osteoplastic resection of, 503 Sight area, localization of, 545 Sinus, lateral, anatomv of, 536 ligation of, 586 thrombosis of, operation for, 588 longitudinal, inferior, anatomy of, 536 ligation of, 586 superior, anatomy of, 536 topography of, 542 Sinus, straight, anatomy of, 536 Sinuses at base of skull, 536 bony, air, of head and face, operations upon, 600 frontal, anatomy of, 608 exposure and drainage of, 610 operations upon, 608 general considerations, 609 instruments for, 610 lateral, topography of, 542 maxillary, anatomy of, 611 exposure of, through facial aspei!, above alveolar margin, 613 second molar tooth, 614 operations upon, 611 general considerations, 612 instruments for, 613 venous, of dura mater, 536 Skin, implantation of ureter upon, 1089 in amputation, treatment of, 297 Skull, anatomy of, 533 fracture of, trephining for, 590 osteoplastic resection of, 565 Smell area, localization of, 545 Smith's disarticulation at knee-joint, 434 method of amputating leg at upper third, 427 Snuff-box, anatomy of, 67 Sound areas, localization of, 545 introduction of, into female bladder, 1095 into male bladder, 1094 Speech aeas, localization of, 545 Speculum, ear, introduction of, for examination of membrana tympani, 618 Spence's disarticulation at shoulder-joint, 378 Spermatic cord, anatomy of, 1135 operations upon, 1135 instruments for, 1136 Spina bifida, 679 Bobroff's operation for, 683 Chipault's operation for, 683 Dollinger's operation for, 683 varieties of, 680 Zenenko's operation for, 683 Spinal accessory nerve, anatomy of, 195 exposure of, at anterior border of sternomastoid muscle, 195 analgesia, subarachnoid puncture for, 666 cord, anatomy of, 630 gunshot wounds of, operative treatment, 6 75 incised and penetrating wounds of, operative treatment, 674 operations upon, 630 general considerations, 642 tumors of, operations for, 677 puncture for drainage of subarachnoid space, 670 Spine, anatomy of, 630 dislocations of, operative treatment, 672 fracture-dislocations of, operative treat- ment, 673 fractures of, operative treatment, 670 localization of, 632 operations upon, 630 INDEX 1203 Spine, operations upon, general considera- tions, 642 osteitis of, tubercular, anterior, operative treatment of, 685 posterior, operative treatment of, 685 osteoplastic resection of, 648 formation and turning back of flap in, 651 general considerations, 642 Hartley's preliminary excision of spinous process in, 647, 649 Spleen, anatomy of, 1036 exposure of, by subpleural route, 1039 operations upon, 1036 general considerations, 1037 instruments for, 1038 puncture of, exploratory, 1038 suture of, 1039 Splenectomy, partial, 1040 total, 1 04 1 Splenopexy, 1039 Splenorrhaphy, 1039 Splenotomv, oblique subcostal incision, 1038 Ssabanajeff's femorotibial osteoplastic amputation of leg, 443 Ssabanajew-Franck's method of gastros- tomy, 957 Stenson's duct, anatomy of, 721 operations upon, 721 Stimson's operation for ununited fracture of patella, 233 Stomach, anatomy of, 950 cardiac orifice, dilatation of, 987 operations upon, 950 general considerations, 951 instruments for, 952 pyloric orifice, divulsion of Loreta's operation, 986 wall, suture of, 955 Stomach-tube, introduction of, 952 Stone in bladder, lateral perineal cystotomy for, 1099 median perineal cystotomy for, 1102 Stricture of esophagus, direct dilatation for, 716 divulsion of, 716 division, by string friction, Abbe's operation, 716 Bryant's operation, 716 permanent tubage, 716 retrograde dilatation for, 716 divulsion of, 716 Subarachnoid puncture for spinal analgesia, 666 space, cerebellar, incision of, for drainage, 595 drainage of, spinal puncture for, 670 Subcapsular nephrectomy, 1072 Subclavian artery, anatomy of, 50 left, first portion, ligation of, 52 right, first portion, ligation of, 52 second portion, ligation of, 53 third portion, ligation of, 53 Subhyoid pharyngotomy, 709 Sublingual gland, anatomy of, 726 excision of, through floor of mouth, 726 Sublingual gland, operations upon, 726 Submaxillary gland, anatomy of, 724 excision of, 725 operations upon, 724 Sudeck's fraise, 576 Supraduodenal choledochotomy, 1031 Supra-orbital nerve, anatomy of, 182 exposure of, 182 Suprapubic cystotomy, 1096 prostatectomy, 1142 Suprathvroid laryngotomy, 702 Suture of artery, 118 of bladder, 1103 of heart, 790 of intestines, 841. See also Enter- orrkaphy. of kidney, 1063 of ligaments, 268 of liver, 10 19 of muscle, 245 of nerve, 160 of pericardium, 785 of spleen, 1039 of stomach-wall, 955 of tendon, 251 of thoracic duct, 148 of ureters, 1079 of urethra, 1 127 of veins, 142 Sylvian fissure, anatomy of, 533 topography of, 539 Syme's disarticulation of foot at ankle- joint, 414 method of external perineal urethrotomy, 1123 Syndesmotomy, 268 Tabatiere, anatomy of, 67 Talma-Drummond operation for cirrhosis of liver, 102 1 Tamponing of larynx, 702 of trachea, 707 Tarsus and tarsometatarsus, osteoplastic resection of, 513 excision of, 5 1 8 mid-, osteoplastic resection of, 514 posterior, osteoplastic resection of, 5 1 5 Taste area, localization of, 545 Teale's method of amputation bv unequal rectangular flaps, 314 Temporal artery, anatomy of, 43 ligation of, 43 lobe, topography of, 541 Temporomaxillary articulation, excision of, 476 Temporosphenoidal fissure, superior, anat- omy of, 541 Tendon-grafting, 261 Tendon-implantation, 261 Tendon-lengthening, 254 Tendon-sheaths, excision of, 267 operations upon, 249 ruptured, repair of, 265 Tendon-shortening, 259 Tendon-transplantation, 261 1204 INDEX Tendons in amputation, treatment of, 297 operations upon, 249 suture of, 251 transplantation of, with their osseous insertions, 265 uniting of, to bone, operation for, 264 to periosteum, operation for, 263 Tendoplasty, 254 Tenorrhaphy, 251 Tenotomy, 249 open, 250 subcutaneous, 250 Testes, anatomy of, 1128 operations upon, 11 28 Thigh, amputation of, 440 at condyles of femur, 440 general considerations, 43S just above condyles of femur, 441 just below trochanters, 449 lower, middle, or upper third, 446, 448 third, 444 anatomy of, 436 Thomas' forceps tourniquet for controlling hemorrhage, 455 Thoracentesis, 761 Thoracic duct, anatomy of, 148 ligation of, 149 suture of, 148 esophagotomy, by posterior mediastinal osteoplastic flap operation, 792 tracheotomy, 707 by posterior mediastinal thoracoplastic flap operation, 791 wall and contents, anatomy of, 731 operations upon, 736 chondroplastic resection of, 734 Thoracotomy by partial excision of one or more ribs, 763 intercostal, 761 mediastinal, anterior, by long median incision, 748 by osteoplastic resection of part of sternum, 750 posterior, 752 Thorax, anatomy of, 731 operations upon, 731 instruments for, 734 Thrombosis of lateral sinus, operation for, 588 Thumb, amputation of, with part of metacarpal, 342 disarticulation of, at metacarpophalan- geal-joint, 334 with metacarpal, 345 metacarpal of, excision of, 489 Thyroid artery, inferior, anatomy of, 56 ligation of, 57 gland, anatomy of, 727 operations upon, 727 Thyroidectomy, complete, 729 partial, 727 Thyrotomy, 698 Tibia, excision of, 518 Tibial artery, anterior, anatomy of, 103 ligation of, 104 posterior, anatomy of, 108 Tibial artery, posterior, ligation of, 109 nerve, anterior, anatomy of, 208 exposure of, near origin, 208 posterior, anatomy of, 207 exposure of, behind internal malleo- lus, 207 between origin and ankle, 207 Toes, amputations about, general con- siderations, 386 amputation of, at first phalanx, 391 at last phalanx, 388 at metatarsus, 402 at second phalanx, 390 with part of metatarsals, 401 disarticulation of, at first interphalangeal joints, 390 at metatarsophalangeal joints, 392 at second interphalangeal joint, 389 at tarsometatarsal joints, 407, 408 en masse, at metatarsophalangeal joints, 395 general considerations, 386 with metatarsals, 403, 404 excision of bones and joints about, 505 of first interphalangeal joints, 506 phalanges, 507 of metatarsal bones, 507 of metatarsophalangeal joints, 507 of second interphalangeal joints, 506 phalanges, 506 of terminal phalanges, 506 great, disarticulation of, at metatarso- phalangeal joints, 393 with metatarsals, 404 little, disarticulation of, at metatarso- phalangeal joints, 394 with metatarsals, 406 second, third, or fourth, disarticulation of, at metatarsophalangeal joints, 392 two adjoining, disarticulation of, at metatarsophalangeal joint, 395 two or three contiguous, disarticulation of, with metatarsals, 407 Tongue, anatomy of, 619 excision of, 619 general considerations, 620 instruments for, 621 limited portions, 621 through mouth, after preliminary ligation of lingual arteries, 624 without preliminary ligation of lingual arteries, 622 together with cervical and submax- illary glands, 627 with osteoplastic division of inferior maxilla, 624 operations upon, 619 Tonsillectomy, complete, through mouth, 718 through neck, 719 partial, through mouth, 71S Tonsillotomy, 717 Tonsils, anatomy of, 717 operations upon, 717 general considerations, 717 instruments for, 717 INDEX 1205 Torsion of artery, 140 Trachea, anatomy of, 702 foreign bodies in, operation for removal of, 707 operations upon, 702 general considerations, 703 instruments for, 703 tamponing of, 707 Tracheolaryngotomy, 706 Tracheoscopy, 707 Tracheotomy, Bose's bloodless method of, 706 high, 704 low, 706 thoracic, 707 by posterior mediastinal thoracoplastic flap operation, 791 Transduodenal choledochostomy, 1034 Transplantation, tendon-, 261 with its osseous insertion, 265 Trendelenburg's rod for controlling hem- orrhage in amputations near hip-joint, 455 Trephining, 558 for fracture of skull, 590 linear, 580 varieties of, 558 Treve's operation for Pott's disease, 687 Trifacial nerve, exposure of, by direct infra- arterial route, 175 by trephining through pterygo- maxillary fossa, 181 through temporal fossa, 177 Trigonum vesicae, anatomy of, 1092 Tubercular osteitis of spine, anterior, operative treatment of, 685 posterior, operative treatment of, 685 Tuffier's method of nephropexy, 1068 of uretero-ureterostomy, 1081 Tumor, cerebellar, operation for, 599 cerebral, operation for, 597 of spinal cord, operations for, 677 Tunica albuginea, anatomy of, n 29 vaginalis, anatomy of, n 28 puncture of, n 29 vasculosa, anatomy of, n 29 Ulcer, gastric, operation for, 1002 perforated, operation for, 1003 Ullmann's modification of Maunsell's method of entero-enterostomy, 881 Ulna, excision of, 493 excision of, total, 493 Ulnar artery, ligation of, 73 nerve, anatomy of, 202 exposure of, above internal condyle of humerus, 203 above middle of arm, 202 Umbilical hernia, 11 78. See also Hernia, umbilical. Ureterei tomv, 10S9 partial, by oblique lumbar incision, 1090 total, with removal of kidney, 1090 Ureterocystostomy, 1085 Ureteroplasty, 1080 Ureterorectostomy, 10S6 Ureterorrhaphy, 1079 Ureterotomy, 1078 Uretero-ureteral anastomosis, 1080 Uretero-ureterostomy, 1080 Ureters, anatomy of, 1073 and kidneys, extraperitoneal exposure of, 1076 exposure of, 1076 implantation of, 1084 into bladder, 1085 into large intestine, 1086 upon skin, 1089 operations upon, 1073 general considerations, 1075 instruments for, 1076 suture of, 1079 Urethra, anatomy of, 111S female, anatomy of, n 19 male, anatomy of, 111S operations upon, n 18 general considerations, 1 1 19 instruments for, n 20 suture of, 1127 Urethrorrhaphy, n 27 Urethrostomv, 1127 Urethrotomy, n 20 external perineal, n 26 Cock's operation, 11 26 Gouley's method, n 24 Syme's method, 1123 YVheelhouse's method, n 25 internal, by dilating urethrotome, n 21 Uterus, anatomy of, 1147 broad ligament of, anatomv, 1148 operations upon, n 47 instruments for, 11 50 round ligaments of, anatomy, 1149 Vagina, anatomy of, 1149 Vaginal hysterectomy, total, 1153 Van Hook's method of uretero-ureteros- tomy, 1082 Varicocele, Bennett's modification of Howse's operation for, 1137 operation for radical cure of, 1137 Vas deferens, anatomv of, 1136 Vascular neoplasms, injection of water at high temperature in, 141 Vasectomy, partial, 1136 Veins, acupressure of, 145 celiotomv, 800 excision of, 145 infusion of salt solution into, 145 ligation of, en masse, 145 in amputation, 295 lateral, 143 temporary, 144 transverse, 144 operations upon, 142 suture of, 142 Venesection, 142 Venous forcipressure, 145 Ventricles, lateral, of brain, puncture and drainage of, 594 1206 INDEX Ventricles, lateral, of brain, topography of, 542 right, of heart, paracentesis of,. 787 Verneuil's method of rectopexy, 933 Vertebral artery, anatomy, 55 ligation of, 55 tubercular osteitis, anterior, operative treatment of, 685 posterior, operative treatment of, 685 Vesical calculus, lateral perineal cystotomy for, 1099 median perineal cystotomy for, 1102 drainage, 1108 Vesicnlae seminales. See Seminal vesicles. Vischer's method of lateral abdominal section, 819 Visual word area, localization of, 545 Volkmann's operation for hydrocele, 1131 Yon Bergmann's operation for hydrocele, \ on Hacker's method of posterior gastro- enterostomy, 974 Warren's radical excision of breast, 744 Weir-Harrington method of anterolateral abdominal section, 810 Weir's method of appendicostomy, 912 modification of Bircher's operation for gastroplication, 981 of Murphy's button, lateral anastomo- sis with, 890 Wharton's duct, anatomy of, 724 operations upon, 724 Wheelhouse's method of external perineal urethrotomy, n 25 Whitehead's excision of tongue, 622 Whitehead's operation for hemorrhoids, 945 Winslow's foramen, anatomy of, 820 method of uretero-ureterostomy, 1082 Wirsung's canal, anatomy of, 1043 Witzel's method of gastrostomy, 959 Wladimiroff-Mikulicz resection of foot, 516 modification of, 518 Wolff's operation for uniting tendon to bone, 264 Wblfler's method of anterior gastroenter- ostomy, 968 of gastrogastrostomy, 979 Wounds, bullet, of brain, operation for, 591 gunshot, of spinal cord, operative treat- ment of, 675 incised and penetrating, of spinal cord, operative treatment of, 674 of artery, closure of, Brewer's operation for, 124 by special rubber plaster, 124 of intestine, enterorrhaphy for, 848 Wrist-joint, anatomy of, 348 disarticulation at, 350 excision of, 489 Wyeth's disarticulation at hip-joint, 456 operation for vascular neoplasms, 141 pins in amputating at hip-joint, 453 in controlling hemorrhage in dis- articulation at shoulder-joint, 374 Young's method of total excision of seminal vesicles and part of ejaculatory ducts, "39 Zenenko's operation for spina bifida, 683 ' SAUNDERS* BOOKS on Nervous and Mental Diseases, Children, Hygiene, Nursing, and Medical Jurisprudence W. B. SAUNDERS COMPANY 925 WALNUT STREET PHILADELPHIA 9, HENRIETTA STREET COVENT GARDEN, LONDON THE SUPERIORITY OF SAUNDERS' TEXTBOOK In a recent series of articles entitled "WHAT ARE THE BEST MEDICAL TEXT-BOOKS?" a well known medical journal compiled a tabulation of the text-books recommended in those schools which are members of the American Association of Medical Colleees. The text- books were divided into twenty (20) subjects and under each subject was given a list of the various books with the number of times each book is recommended. Saunders' books head ten (10) of the twenty (20) subjects, the largest number head- ed by any other publisher being three (3). In other words, Saunders' books lead in as many subjects as the books of all the other publishers combined. A Complete Catalogue of Our Publications will be Sent upon request SAUNDERS 1 BOOKS ON GET £k • THE NEW THE BEST l\ 111 6nC3tl STANDARD Illustrated Dictionary Recently Issued— The New (4th) Edition The American Illustrated Medical Dictionary. A new and com- plete dictionary of the terms used in Medicine, Surgery, Dentistry, Pharmacy, Chemistry, and kindred branches ; with over 100 new and elaborate tables and many handsome illustrations. By W. A. Newman Dorland, M. D., Editor of " The American Pocket Medical Diction- ary." Large octavo, nearly 850 pages, bound in full flexible leather. Price, $4.50 net; with thumb index, $5.00 net. Gives a Maximum Amount of Matter in a Minimum Space, and at the Lowest Possible Cost WITH 2000 NEW TERMS The immediate success of this work is due to the special features that distin- guish it from other books of its kind. It gives a maximum of matter in a mini- mum space and at the lowest possible cost. Though it is practically unabridged, yet by the use of thin bible paper and flexible morocco binding it is only 1 % inches thick. The result is a truly luxurious specimen of book-making. In this new edition the book has been thoroughly revised, and upward of two thousand new terms that have appeared in recent medical literature have been added, thus bringing the book absolutely up to date. The book contains hundreds of terms not to be found in any other dictionary, over 100 original tables, and many hand- some illustrations, a number in colors. PERSONAL OPINIONS Howard A. Kelly, M. D., Professor of Gynecology, fohns Hopkins University , Baltimore. " Dr. Dorland's dictionary is admirable. It is so well gotten up and of such convenient si»e. No errors have been found in my use of it." J. Collins Warren, M.D., LL.D., F.R.C.S. (Hon.) Professor of Surgery, Harvard Medical School. " I regard it as a valuable aid to my medical literary work. It is very complete and of convenient size to handle comfortably. I use it in preference to any other." DISEASES OF CHILD REX. KerrV Diagnostics qf Diseases qf Children Diagnostics of the Diseases of Children. By LeGrand Kerr, M. D., Professor of Diseases of Children, Brooklyn Postgraduate Med- ical School, Brooklyn. Octavo of 542 pages, fully illustrated. Cloth, S5.00 net; Half Morocco, $6.50 net. RECENTLY ISSUED— FOR THE PRACTITIONER Dr. Kerr' s work differs from all others on the diagnosis of diseases of children in that the objective symptoms are particularly emphasized. The constant aim throughout has been to render a correct diagnosis as early in the course of the disease as possible, and for this reason differential diagnosis is presented from the very earliest symptoms. The many original illustrations will be found helpful. New York State Journal of Medicine " The illustrations are excellent and numerous. It will meet the needs of the great mass of physicians who treat the diseases of infancy and childhood." Kerley's Treatment qf Diseases qf Children Treatment of the Diseases of Children. By Charles Gilmore Kerley, M. D., Professor of Diseases of Children, New York Polyclinic School and Hospital. Octavo of 597 pages, illustrated. Cloth, $5.00 net; Half Morocco, $6.50 net. RECENTLY ISSUED— THE PRACTITIONER'S PEDIATRICS This work has been prepared for the physician engaged in general practice. The author presents all tJie modern methods of management and treatment in greater detail than any other work on the subject heretofore published. The methods suggested are the results of actual personal experience, extending over a number of years of hospital and private practice. There is an excellent illus- trated chapter on Gymnastic Therapeutics. The British Medical Journal " Dr. Kerley's book is one of the best on the subject that has come under our notice. All through it shows evidence of ripe experience and sound judgment," SAUNDERS' BOOKS ON Friihwald and WestcottV Diseases of Children Diseases of Children. A Practical Reference Book for Students and Practitioners. By Professor Dr. Ferdinand Fruhwald, of Vienna. Edited, with additions, by Thompson S Westcott, M. D., Associate in Diseases of Children, University of Pennsylvania. Octavo volume of 533 pages, containing 176 illustrations. Cloth, $4.50 net. RECENTLY ISSUED This work represents the author's twenty years' experience, and is intended as a practical reference work for the student and practitioner. With this refer- ence feature in view, the individual diseases have been arranged alphabetically. The prophylactic, therapeutic, and dietetic treatments are elaborately discussed. The practical value of the book has been considerably enhanced by the many excellent illustrations. E. H. Bartley, M. D.. Professor of Pediatrics, Chemistry, and Toxicology, Long Island College Hospital, New York, "It is a new idea, which ought to become popular because of the alphabetic arrangement. Its title expresses just what it is— a ready reference hand-book." Ruhrah's Diseases of Children A Manual of Diseases of Children. By John Ruhrah, M. D., Clinical Professor of Diseases of Children, College of Physicians and Surgeons, Baltimore. i2mo of 425 pages, fully illustrated. Flexible leather, $2.00 net. RECENTLY ISSUED— NEW 2d) EDITION In revising this work for the second edition Dr. Ruhrah has carefully incorporated all the latest knowledge on the subject. All the important facts are given concisely and explicitly, the therapeutics of infancy and childhood being outlined very carefully and clearly. There are also directions for dosage and prescribing, and many useful prescriptions are included. The entire work is amply illustrated with practical illustrations. A valuable aid consists in the references to pediatric literature. American Journal of the Medical Sciences " Treatment has been satisfactorily covered, being quite in accord with the best teaching, yet withal broadly general and free from stock prescriptions." NERVOUS AND MENTAL DISEASES. Church and Peterson's Nervous and Mental Diseases Nervous and Mental Diseases. By Archibald Church, M. D., Professor of Nervous and Mental Diseases and Medical Jurisprudence, Northwestern University Medical School, Chicago ; and Frederick Peterson, M. D., President New York State Commission on Lunacy; Professor of Psychiatry at the College of Physicians and Surgeons, N. Y. Handsome octavo, 960 pages ; 350 illustrations. Cloth, ,$5.00 net ; Sheep or Half Morocco, 56.50 net. JUST ISSUED— NEW (6th) EDITION This work has met with a most favorable reception from the profession at large. It fills a distinct want in medical literature, and is unique in that it furnishes in one volume practical treatises on the two great subjects of neurology and psychiatry. In preparing this edition Dr. Church has carefully revised his entire section, placing it in accord with the most recent neurologic advances. Among the additions of particular interest are the chapters on Psychosthenia and the Motor Tics. Dr. Peterson, for his section — Mental Diseases — has taken unusual care to have it representative of the present-day knowledge of the sub- ject. While the changes throughout have been many, they have been so made as but slkditlv to increase the size of the work. OPINIONS OF THE MEDICAL PRESS American Journal of the Medical Sciences " This edition has been revised, new illustrations added, and some new matter, and really is two books. . . . The descriptions of disease are clear, directions as to treatment definite, and disputed matters and theories are omitted. Altogether it is a most useful text-book." Journal of Nervous and Mental Diseases "The best text-book exposition of this subject of our day for the busy practitioner. . . . The chapter on idiocy and imbecility is undoubtedly the best that has been given us in any work of recent date upon mental diseases. The photographic illustrations of this part of Dr. Peterson's work leave nothing to be desired." New York Medical Journal "To be clear, brief, and thorough, and at the same time authoritative, are merits that ensure popularity. The medical student and practitioner will find in this volume a ready and reliable resource." SAUNDERS' BOOKS ON Peterson arid Haines' Legal Medicine & Toxicology A Text=Book of Legal Medicine and Toxicology. Edited by Frederick Peterson, M. D., Professor of Psychiatry in the College of Physicians and Surgeons, New York ; and Walter S. Haines, M. D., Professor of Chemistry, Pharmacy, and Toxicology, Rush Medical College, in affiliation with the University of Chicago. Two imperial octavo volumes of about 750 pages each, fully illustrated. Per volume: Cloth, $5.00 net; Sheep or Half Morocco, $6.50 net. Sold by Subscription. IN TWO VOLUMES— BOTH VOLUMES NOW READY The object of the present work is to give to the medical and legal professions a comprehensive survey of forensic medicine and toxicology in moderate compass. This, it is believed, has not been done in any other recent work in English. Under * ' Expert Evidence " not only is advice given to medical experts, but suggestions are also made to attorneys as to the best methods of obtaining the desired infor- mation from the witness. An interesting and important chapter is that on " The Destruction and Attempted Destruction of the Human Body by Fire and Chemi- cals." A chapter not usually found in works on legal medicine is that on " The Medicolegal Relations of the X-Rays." This section will be found of unusual im- portance. The responsibility of pharmacists in the compounding of prescriptions, in the selling of poisons, in substituting drugs other than those prescribed, etc., furnishes a chapter of the greatest interest to every one concerned with questions of medical jurisprudence. Also included in the work is the enumeration of the laws of the various states relating to the commitment and retention of the insane. OPINIONS OF THE MEDICAL PRESS Medical News, New York " It not only fills a need from the standpoint of timeliness, but it also sets a standard of what a text-book on Legal Medicine and Toxicology should be." Columbia Law Review " For practitioners in criminal law and for those in medicine who are called upon to give •court testimony in all its various forms ... it is extremely valuable." Pennsylvania Medical Journal " If the excellence of this volume is equaled by the second, the work will easily take rank as the standard text-book on Legal Medicine and Toxicology." INSANITY AND HYGIENE. Brower and Bannister on Insanity A Practical Manual of Insanity. For the Student and General Practitioner. By Daniel R. Brower, A.M., M.D., LL. D., Professor of Nervous and Mental Diseases in Rush Medical College, in affiliation with the University of Chicago ; and Henry M. Bannister, A. M., M. D., formerly Senior Assistant Physician, Illinois Eastern Hospital for the Insane. Handsome octavo of 426 pages, with a number of full-page inserts. Cloth, #3.00 net. FOR STUDENT AND PRACTITIONER This work, intended for the student and general practitioner, is an intelligible, up-to-date exposition of the leading facts of psychiatry, and will be found of in- valuable service, especially to the busy practitioner unable to yield the time for a more exhaustive study. The work has been rendered more practical by omitting elaborate case records and pathologic details, as well as discussions of speculative and controversial questions. American Medicine " Commends itself for lucid expression in clear-cut English, so essential to the student in any department of medicine. . . . Treatment is one of the best features of the book, and for this aspect is especially commended to general practitioners." Bergey's Hygiene The Principles of Hygiene : A Practical Manual for Students, Physicians, and Health Officers. By D. H. Bergey, A. M., M. D., Assistant Professor of Bacteriology in the University of Pennsylvania. Octavo volume of 536 pages, illustrated. Cloth, $3.00 net. RECENTLY ISSUED— SECOND REVISED EDITION This book is intended to meet the needs of students of medicine in the acquirement of a knowledge of those principles upon which modern hygienic practises are based, and to aid physicians and health officers in familiarizing themselves with the advances made in hygiene and sanitation in recent years. This new second edition has been very carefully revised, and much new matter added, so as to include the most recent advancements. Buffalo Medical Journal " It will be found of value to the practitioner of medicine and the practical sanitarian ; and students of architecture, who need to consider problems of heating, lighting, ventilation, water supply, and sewage disposal, may consult it with profit." SAUNDERS' BOOKS ON Draper's Legal Medicine A Text=Book of Legal Medicine. By Frank Winthrop Draper, A. M., M. D., Professor of Legal Medicine in Harvard University, Bos- ton; Medical Examiner of the County of Suffolk, Massachusetts, etc. Octavo volume of 573 pages, fully illustrated. Cloth, $4.00 net; Half Morocco, $5.50 net. Hon. Olin Bryan, LL. B. Professor of Medical Jurisprudence, Baltimore Medical College " A careful reading of Draper's Legal Medicine convinces me of the excellent character of the work. It is comprehensive, thorough, and must, of a necessity, prove a splendid acquisition to the libraries of those who are interested in medical jurisprudence." Chapman's Medical Jurisprudence Third Edition Medical Jurisprudence, Insanity, and Toxicology. By Henry C. Chapman, M. D., Professor of Institutes of Medicine and Medical Juris- prudence in Jefferson Medical College, Philadelphia. i2mo of 329 pages, fully illustrated. Cloth, $1.75 net. Medical Record, New York " The manual is essentially practical, and is a useful guide for the general practitioner, besides possessing literary merit." Hofmann and Peterson's Legal Medicine Hand-Atiases Atlas of Legal Medicine. By Dr. E. von Hofmann, of Vienna. Edited by Frederick Peterson, M. D., Professor of Psychiatry in the College of Physicians and Surgeons, New York. With 120 colored figures on 56 plates and 193 half-tone illustrations. Cloth, $3.50 net. The Practitioner, London " The illustrations appear to be the best that have ever been published in connection with this department of medicine, and they cannot fail to be useful alike to the medical jurist and to the student of forensic medicine." Jakob and Fisher's Nervous System and itS Diseases In Saunders* Hand-Atlases Atlas and Epitome of the Nervous System and its Diseases. By Professor Dr. Chr. Jakob, of Erlangen. From the Second Revised- German Edition. Edited, with additions, by Edward D. Fisher, M. D., Professor of Diseases of the Nervous System, University and Bellevue Hospital Medical College, New York. With 83 plates and copious text. Cloth, $3.50 net. Philadelphia Medical Journal " We know of no one work of anything like equal size which covers this important and complicated field with the clearness and scientific fidelity of this hand-atlas." xr/ts/NG. Golebiewski and Bailey's Accident Diseases Atlas and Epitome of Diseases Caused by Accidents. By Dr. Ed. Golebiewski, of Berlin. Edited, with additions, by Pearce Bailey, M.D., Consulting Neurologist to St. Luke's Hospital, New York. With 71 colored illustrations on 40 plates, 143 text-illustrations, and 549 pages of text. Cloth, $4.00 net. In Saunders' Hand- Atlas Series. This work contains a full and scientific treatment of the subject of accident injury ; the functional disability caused thereby ; the medicolegal questions in- volved, and the amount of indemnity justified in given cases. The work is indispensable to every physician who sees cases of injury due to accidents, to advanced students, to surgeons, and, on account of its illustrations and statistical data, it is none the less useful to accident-insurance organizations. The Medical Record, New York " This volume is upon an important and only recently systematized subject, which is grow- ing in extent all the time. The pictorial part of the book is very satisfactory." Stoney's Materia Medica for Nurses Practical Materia Medica for Nurses, with an Appendix containing Poisons and their Antidotes, with Poison-Emergencies ; Mineral Waters ; Weights and Measures ; Dose-List, and a Glossary of the Terms used in Materia Medica and Therapeutics. By Emily M. A. Stoney, of the Carney Hospital, South Boston. i2mo of 300pages. Cloth, #1.50 net. RECENTLY ISSUED— NEW (3rd) EDITION In making the revision for this new third edition, all the newer drugs have been introduced and fully discussed. The consideration of the drugs includes* their sources and composition, their various preparations, physiologic actions, directions for administering, and the symptoms and treatment of poisoning. Journal of the American Medical Association " So far as we can see, it contains everything that a nurse ought to know in regard to drugs. As a reference-book for nurses it will without question be very useful." SAUNDERS' BOOKS ON Hoxie's Medicine for Nurses Recently issued Practice of Medicine for Nurses. A Text-Book for Nurses and Students of Domestic Science, and a Hand-Book for All Those Who Care for the Sick. By GEORGE HOWARD Hoxie, .M. J)., Professor of Internal Medicine, Uni- versity of Kansas. With a Chapter on Technic of Nursing by Pearl L. Laptad, Principal of the Training School for Nurses, University of Kansas. I2mo of 284 pages, illustrated. Cloth, $1.50 net. I his work is truly a practice of medicine for the nurse, enabling her to recognize any signs and changes that may occur between visits of the physician, and, if necessary, to combat them until the physician's arrival. This information the author presents in a way most acceptable, particularly emphasizing the nurse's part. There are also special chapters on the diseases of infancy and childhood, diseases of the eye, ear, nose, and throat, venereal diseases, nervous and mental diseases, surgical nursing, nursing in skin diseases, emergency measures, and the care and management of the sick-room and the patient. McCombs' Diseases of Children for Nurses e £ued Diseases of Children for Nurses. By Robert S. McCombs, M. D., Instructor of Nurses at the Children's Hospital of Philadelphia. i:mo of 430 pages, illustrated. Cloth, g2.oo net. Dr. McCombs' experience in lecturing to nurses has enabled him to emphasize just those points that nurses most need to know. He has given a short but clear description of each disease, so that the nurse will be enabled to know what symptoms to expect and what complications to guard against. The nursing side has been written by head nurses, especially praiseworthy being the work of Miss lennie Manly. Wilson's Obstetric Nursing Recently issued A Reference Hand=Book of Obstetric Nursing. By W. Reynolds Wilson, M. U., Visiting Physician to the Philadelphia Lying-in Charity. 321x10 of 258 pages, illustrated. Flexible leather, $1.25 net. Dr. Wilson's work discusses the subject of obstetrics entirely from the nurse's point of view, presenting in detail everything connected with pregnancy and labor and their man- agement. The entire subject is covered, from the beginning of pregnancy, its course, signs, on to the approach of labor, its actual accomplishment, the puerperium, and care of the infant. The text is copiously illustrated. Aikens' Training-School Methods Recently issued Hospital Training=SchooI Methods and the Head Nurse. By Char- lotte A. Aikens, Late Director of Sibley Memorial Hospital, Washington, D. C. i2mo of 267 pages. Cloth, $1.50 net. This new work is indispensable to all those who aspire to become head nurses. It sug- gests plans that have been tested personally, and gives definite help to those beginning the work of teaching and supervising in hospitals. It tells the head nurse how to teach, it tells what should be taught the nurse and how much. NURSING. De Lee's Obstetrics for Nurses Obstetrics for Nurses. By Joseph B. De Lee, M.D., Professor of Obstetrics in the Northwestern University Medical School; Lecturer in the Nurses' Training Schools of Mercy, Wesley, Provident, Cook County, and Chicago Lying-in Hospitals. i2mo volume of 512 pages, fully illustrated. Cloth, $2.50 net. JUST ISSUED— NEW (3d) EDITION The illustrations in Dr. De Lee's work are nearly all original, and represent photographs taken from actual scenes. The text is the result of the author's many years' experience in lecturing to the nurses of five different training schools. J. Clifton Edgar, M. D., Professor of Obstetrics and Clinical Afidwi/ery, Cornell Medical School, N. Y. " It is far-and-away the best that has come to my notice, and I shall take great pleasure in recommending it to my nurses, and students as well." Davis* Obstetric and Gynecologic Nursing Obstetric and Gynecologic Nursing. By Edward P. Davis, A.M., M. D., Professor of Obstetrics, Jefferson Medical College and Philadel- phia Polyclinic. i2mo of 436 pages, illustrated. Buckram, $1.75 net. JUST ISSUED— THIRD REVISED EDITION The Lancet, London " Not only nurses, but even newly qualified medical men, would learn a great deal by a perusal of this book. It is written in a clear and pleasant style, and is a work we can recom- mend." Reference Handbook for Nurses A Reference Handbook for Nurses. By Amanda K. Beck, of Chicago, 111. 321110 of 177 pages. Flexible leather, S1.25 net. RECENTLY ISSUED This little book contains information upon every question that comes to a nurse in her daily work, and embraces all the information that she requires to carry out any directions given by the physician. Boston Medical and Surgical Journal "Must be regarded as an extremely useful book, not only for nurses, but for physicians " SAUNDERS' BOOKS ON Stoney's Nursing Practical Points in Nursing: for Nurses in Private Practice. By Emily M. A. Stoney, Superintendent of the Training School for Nurses at the Carney Hospital, South Boston, Mass. 466 pages, fully illus- trated. Cloth, $175 net. THIRD EDITION, THOROUGHLY REVISED— RECENTLY ISSUED In this volume the author explains the entire range of private nursing as dis- tinguished from hospital nursing, and the nurse is instructed how best to meet the various emergencies of medical and surgical cases when distant from medical or surgical aid or when thrown on her own resources. An especially valuable feature will be found in the directions how to i?nprovise everything ordinarily needed in the sick-room. The Lancet, London "A very complete exposition of practical nursing in its various branches, including obstetric and gynecologic nursing. The instructions given are full of useful detail." Stoney's Technic for Nurses Bacteriology and Surgical Technic for Nurses. By Emily M. A. Stoney, Superintendent at Carney Hospital, South Boston. Revised by Frederic R. Griffith, M. D., Surgeon, of New York. i2mo, 278 pages, illustrated. Cloth, $1.50 net. RECENTLY ISSUED— NEW (2d) EDITION Trained Nurse and Hospital Review " These subjects are treated most accurately and up to date, without the superfluous reading which is so often employed. . . . Nurses will find this book of the greatest value both during their hospital course and in private practice." Spratling on Epilepsy Epilepsy and Its Treatment. By William P. Spratling, M. D., Medical Superintendent of the Craig Colony for Epileptics, Sonyea, New York. Octavo of 522 pages, fully illustrated. Cloth, $4.00 net. The Lancet, London " Dr. Spratling's work is written throughout in a clear and readable style. . . . The work is a mine of information on the whole subject of epilepsy and its treatment." CHILDREN AND HYGIENE. 13 Griffith's Care of the Baby The Care of the Baby. By J. P. Cro«er Griffith, M. D., Clinical Professor of Diseases of Children, University of Penn. ; Physician to the Children's Hospital, Phila. 121110, 455 pp. Illustrated. Cloth, $1.50 net. RECENTLY ISSUED— THE NEW (4th) EDITION The author has endeavored to furnish a reliable guide for mothers. He has made his statements plain and easily understood, in the hope that the volume may be of service not only to mothers and nurses, but also to students and practi- tioners whose opportunities for observing children have been limited. New York Medical Journal "We are confident if this little work could find its way into the hands of every trained nurse and of every mother, infant mortality would be lessened by at least fifty per cent." Crothers' Morphinism Morphinism and Narcomania from Opium, Cocain, Ether, Chloral, Chloroform, and other Narcotic Drugs ; also the Etiology, Treatment, and Medicolegal Relations. ByT. D. Crothers, M. D., Superintendent of Walnut Lodge Hospital, Hartford, Conn. Handsome i2mo of 351 pages. Cloth, $2.00 net. The Lancet, London "An excellent account of the various causes, symptoms, and stages of morphinism, the discussion being throughout illuminated by an abundance of facts of clinical, psychological, and social interest." Abbott's Transmissible Diseases The Hygiene of Transmissible Diseases : Their Causation, Modes of Dissemination, and Methods of Prevention. By A. C. Abbott, M. D., Professor of Hygiene and Bacteriology, University of Pennsylvania. Octavo, 351 pages, with numerous illustrations. Cloth, $2. 50 net. SECOND REVISED EDITION During the interval that has elapsed since the appearance of the first edition investigations upon the modes of dissemination of certain of the specific infections have been very active. The sections on Malaria, Yellow Fever, Plague, Filariasis, Dysentery, and Tuberculosis have been both revised and enlarged. The Lancet, London " We heartily commend the book as a concise and trustworthy guide in the subject with which it deals, and we sincerely congratulate Professor Abbott." i 4 SAUNDERS' BOOKS ON Register's Fever Nursing Recently issued A Text-Book on Practical Fever Nursing. By Edward C. Register, M. I)., 1'rofessor of the Practice of Medicine in the North Carolina Medical College. 121110 of 352 pages. Cloth, $2.50 net. The work completely covers the field of practical fever nursing. Just sufficient of pathology, symptoms, and treatment is given to enable the nurse to care for the patient intelligently. The work is thoroughly practical and nurses will find it most valuable. The illustrations show the nurse how to perform those measures that come within her province, such as bathing, hypodermoclysis, pulse and temperature taking, etc. Hecker, Trumpp, and Abt on Children Recently issued Atlas and Epitome of Diseases of Children. By Dr. R. Hecker and Dr. J. Trumpp, of Munich. Edited, with additions, by Isaac A. Abt, M.D., Assistant Professor of Diseases of Children, Rush Medical College, Chicago. With 48 colored plates, 144 text-cuts, and 453 pages of text. Cloth, $5.00 net. The many excellent lithographic plates represent cases seen in the authors' clinics, and have been selected with great care, keeping constantly in mind the practical needs of the general practitioner. These beautiful pictures are so true to nature that their study is equivalent to actual clinical observation. The editor, Dr. Isaac A. Abt, has added all new methods of treatment. Lewis' Anatomy and Physiology New $?&££ Anatomy and Physiology for Nurses. By LeRoy Lewis, M.D., Surgeon to and Lecturer on Anatomy and Physiology for Nurses at the Lewis Hospital, Bay City, Michigan. 121110 of 347 pages, with 146 illustrations. Cloth, $1.75 net. A demand for such a work as this, treating the subjects fro?n the nurses' point of view, has long existed. Dr. Lewis has based the plan and scope of this work on the methods employed by him in teaching these branches, making the text unusually simple and clear. The Nurses Journal of the Pacific Coast " It is not in any sense rudimentary, but comprehensive in its treatment of the subjects in hand. The application of the knowledge of anatomy in the care of the patient is emphasized." Friedenwald and Ruhrah's Dietetics Recently issued Dietetics for Nurses. By Julius Friedenwald, M.D., Clinical Professor of Diseases of the Stomach, and John Ruhrah, M.D., Clinical Professor of Diseases of Children, College of Physicians and Surgeons, Baltimore. 121110 volume of 365 pages. Cloth, $1.50 net. This work has been prepared to meet the needs of the nurse, both in the training school and after graduation. It aims to give the essentials of dietetics, considering briefly the physiology of digestion and the various classes of foods and the part they play in nutrition. American Journal of Nursing " It is exactly the book for which nurses and others have long and vainly sought. A simple manual of dietetics, which does not turn into a cook-book at the end of the first or second chapter. NURSING AND CHILDREN. 15 Paul's Fever Nursing Recently issued Nursing in the Acute Infectious Fevers. By George P. Paul, M.D., Assistant Visiting Physician to the Samaritan Hospital, Troy, N. Y. 121110 of 200 pages. Cloth, $1.00 net. Dr. Paul has taken great pains in the presentation of the care and management of each fever. The book treats of lovers in general, then each fever is discussed individually, and the latter part of the book deals with practical procedures and valuable information. The London Lancet " The book is an excellent one and will be of value to those for whom it is intended. It is well arranged, the text is clear and full, and the illustrations are good." Paul's Materia Medica for Nurses Recently issued Materia Medica for Nurses. By George P. Paul, M.D., Assistant Visiting Physician to the Samaritan Hospital, Troy. 121110 of 240 pages. Cloth, $1.50 net. Dr. Paul arranges the physiologic actions of the drugs according to the action of the drug and not the organ acted upon. An important section is that on pretoxic signs, giving the warnings of the full action or the beginning toxic effects of the drug, which, if heeded, may prevent many cases of drug poisoning. The Medical Record, New York "This volume will be of real help to nurses; the material is well selected and well arranged, and the book is as readable as it is useful." _ , , _ , __ Recently Issued Pyle s Personal Hygiene The New (3d) Edition A Manual of Personal Hygiene: Proper Living upon a Physiologic Basis. By Eminent Specialists. Edited by Walter L. Pvle, A.M., M.D., Assistant Surgeon to Wills Eye Hospital, Philadelphia. Octavo volume of 451 pages, fully illustrated. Cloth, §1.50 net. To this new edition there have been added, and fully illustrated, chapters on Domestic Hygiene and Home Gvmnastics, besides an appendix containing methods of Hydro- therapy, Mechanotherapy, and First Aid Measures. There is also a Glossary of the medical terms used. Boston Medical and Surgical Journal " The work has been excellently done, there is no undue repetition, and the writers have succeeded unusually well in presenting facts of practical significance based on sound knowledge." Galbraith's Four Epochs of Woman's Life JSffiSSS The Four Epochs of Woman's Life. By Anna M. Galrraith, M.D. With an Introductory Note by John H. Musser, M.D., Univer- sity of Pennsylvania. 121110 of 247 pages. Cloth, $1.50 net. Birmingham Medical Review ■ We do not as a rule care for medical books written for the instruction of the public ; but we must admit that the advice in Dr. Galbraith's work is in the main wise and whole- some." Starr on Children second Edition American Text-Book of Diseases of Children. Edited by Louis Starr, M.D., assisted by Thompson S. Westcott, M.D. Octavo, 1244 pages, illustrated. Cloth, $7-°° net; Half Morocco, $8.50 net. a 6 SAUNDERS' BOOKS ON CHILDREN. . . Fifth Edition, Revised American Pocket Dictionary Recently issued American Pocket Medical Dictionary. Edited by W. A. New- man Dorland, M. D., Assistant Obstetrician to the Hospital of the' University of Pennsylvania. Containing the pronunciation and defini- tion of the principal words used in medicine and kindred sciences, with 64 extensive tables. Handsomely bound in flexible leather, with gold edges, $1.00 net; with patent thumb index, $1.25 net. " I can recommend it to our students without reserve." — J. H. HOLLAND, M. D., Dean of the Jefferson Medical College, Philadelphia. Morrow's Immediate Care of Injured Recently issued Immediate Care of the Injured. By Albert S. Morrow, M. D., Attending Surgeon to the New York City Hospital for the Aged and Infirm. Octavo of 340 pages, with 238 illustrations. Cloth, $2.50 net. Dr. Morrow's book on emergency procedures is written in a definite and decisive style, the reader being told just what to do in every emergency. It is a practical book for every day use, and the large number of excellent illustrations can not but make the treatment to be pursued in any case clear and intelligible. Physicians and nurses will find it indispensible. Powell's Diseases Of Children Third Edition, Revised Essentials of the Diseases of Children. By William M. Powell, M. D. Revised by Alfred Hand, Jr., A. B., M. D., Dispensary Physician and Pathologist to the Children's Hospital, Philadelphia. i2mo volume of 259 pages. Cloth, $1.00 net. hi Saunders' Question- Compend Series. Shaw on Nervous Diseases and Insanity SE3*S£ Essentials of Nervous Diseases and Insanity : Their Symptoms and Treatment. A Manual for Students and Practitioners. By the late John C. Shaw, M. D., Clinical Professor of Diseases of the Mind and Nervous System, Long Island College Hospital, New York. i2mo of 204 pages, illustrated. Cloth, $1.00 net. Jn Saunders' Question- Com- petid Series. " Clearly and intelligently written ; we have noted few inaccuracies and several sug- gestive points. Some affections unmentioned in many of the large text-books are noted." — Boston Medical and Surgical Journal. Starr's Diets for Infants and Children Diets for Infants and Children in Health and in Disease. By Louis Starr, M. D., Consulting Pediatrist to the Maternity Hospital, Philadelphia. 230 blanks (pocket-book size). Bound in flexible leather, $1.25 net. Grafstrom's Mechano-Therapy secon^RevTsidEdition A Text-book of Mechano-therapy (Massage and Medical Gymnas- tics). By Axel V. Grafstrom, B. Sc, M. D., Attending Physician to the Gustavus Adolphus Orphange, Jamestown, New York. i2mo, 200 pages, illustrated. Cloth, $1.25 net. 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