Surgical and obstetrical operations

Front matter

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Preface To The Fourth Edition

The reception accorded by the veterinary profession, to the three prior editions of this little volume encourages the author to prepare and publish a fourth edition under the belief that it fills a certain need in veterinary literature. As in prior editions, so in this, much of the material and illustrations from Dr. PfeifTer's Operations-Cursus are retained, that fact alone indicating the high esteem entertained by the author for his distinguished colleague.

The volume is primarily designed for the use of students in laboratory surgery and embryotomy in which the student performs the surgical operations described, on animals procured for the express purpose, under chloroform anaesthesia whenever possible, after which the subject is destroyed while still anaesthetized. At the same time it has been aimed to render the volume of the greatest possible value to the practitioner consistent with this plan. The operations included under this scheme are necessarily limited to those which can be reasonably well performed on comparatively sound animals of little value and regularly procurable for laboratory purposes. In the present edition the author has enlisted the hearty collaboration of his former student, associate, and finally successor, Dr. James N. Frost, Professor of Surgery. His long experience as a teacher of surgery, his unquestioned skill, and his enthusiastic devotion to progressive ideals in his work add greatly to the value of the volume. The list covers a wide range and is designed to give to the student as thorough training as is practicable in a laboratory course and includes well nigh all the more important varieties of confinement, anaesthesia, disinfection, sutures, bandaging, dressing and other adjuncts to operative work. The chapter on trephining of the facial sinuses has been dealt with at length in order to fully and clearly describe the author's method of operating.

iv PREFACE TO THE FOURTH EDITION

The operation for the surgical relief of roaring in horses, introduced and developed by the author with the collaboration of Dr. Frost in 1905, and soon adopted as the standard throughout the world, has continued to engage our attention and every effort has been made to keep the technic thoroughly up to date..

Generally but one method of operating is described, the one chosen being that which in the author's experience has proven the most valuable in actual practice. No operation has been introduced purely for practice but each one has been tested and known to have practical value.

When two methods of operating are given, they are inserted because each has definite points of superiority over the other. One method may be specially applicable in a given case, another in a different patient where the same operation is to be performed. For example, a milk cow is best spayed through the vagina while a heifer must be operated upon by an incision through the abdominal walls.

Considerable stress has been laid upon the surgical anatomy of the parts involved in each operation ; some uses of the various operations are mentioned ; some of the chief dangers of each are pointed out and in some cases references to literature upon the operation of the diseases for which the operation is designed, are cited.

Figures 14, 15, 17, 23, 29, 35, 39, 40, 49, 50, 53> 54» 55. 57> 60, 61, 64-6S are from Dr. Pfeiffer's Operations-Cursus ; and the remaining plates and figuers were either drawn under the direction of the author or were made from original photographs.

W. L. Williams.

CONTENTS A. SURGICAL OPERATIONS

I. OPERATIONS ON THE HEAD :

Repulsion of Superior Molars 7

Repulsion of Inferior Molars 9

Trephining the Superior Maxillary Sinuses 24

Trephining the Inferior Maxillary Sinuses 29

Trephining the Nasal Fossae 3 1

Poll Evil Operation 35

Ligation of the Parotid Duct 44

Entropium Operation 47

Trifacial Neurectomy 48

II. OPERATIONS CN THE NECK :

Opening the Guttural Pouches 52

Tracheotomy 63

Intra-tracheal Irrigation 65

Intravenous Injection 66

Phlebotomy 68

Ligation of the Carotid Artery 70

Esophagotomy 72

III. OPERATIONS ON THE TRUNK AND THE GENITAL ORGANS :

Puncture of the Chest 75

Puncture of the Intestine 76

Rumenotomy 7S

Resection of the Intestines S4

Subcutaneous Caudal Myotomy 87

Caudal Myectomy for Gripping of the Reins 89

Amputation of the Tail 91

Urethrotomy 93

Amputation of the Penis 96

Vaginal Ovariotomy in the Mare ior

Contents

Ovariotomy in the Cow by the Flank 112

Ovariotomy in the Bitch by the Flank 113

Ovariotomy in the Bitch by the Linea Alba 118