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Farm Animal Surgery - E-Book

Farm Animal Surgery - E-Book

Susan L. Fubini | Norm Ducharme

(2016)

Additional Information

Abstract

Master the surgical techniques needed to treat large animals! A comprehensive resource, Farm Animal Surgery, 2nd Edition provides clear, step-by-step guidelines to performing common, field-tested surgical procedures. Coverage includes key information such as patient examination and preparation, diagnostic imaging, surgical procedures by body system, anesthesia concerns, fluid therapy, and postoperative management. Written by large animal specialists Susan Fubini and Norm Ducharme, along with a team of expert contributors, this resource is also an invaluable tool in preparing for ACVS or ECVS board exams.

  • Consistent, logical organization makes it easy to find important information, with each section devoted to a single animal and chapters organized by body system.
  • Step-by-step guidelines cover bovine, sheep and goat, and swine surgeries by body system.
  • 775 full-color photographs and anatomic drawings illustrate common disorders, techniques, and equipment for large animal surgery.
  • Up-to-date information on key surgical techniques keeps you aware of advances in the field and practical knowledge of animal care.
  • 35 expert contributors provide a diverse, authoritative perspective on the many aspects of large animal surgery.
  • References are provided for very specialized procedures.
  • NEW surgical procedures are included for each species — many with illustrated, step-by-step instructions.
  • NEW coverage of the physical examination includes cow, swine, goats, and sheep, to facilitate more accurate diagnoses of medical or surgical conditions.

Table of Contents

Section Title Page Action Price
Front Cover cover
Farm Animal Surgery i
Copyright Page iv
Dedication v
Contributors vi
Preface ix
Table Of Contents x
I General Considerations to All Species 1
1 Examination of the Surgical Patient 1
Examination of Adult Cattle 1
Physical Examination 1
Diagnostic Procedures 1
Rumen-Fluid Analysis 1
Ororumen Tube 2
Abdominocentesis 2
Laboratory Work 3
Abdominal Ultrasonography 3
Disorders Causing Abdominal Distention in Cattle 3
Vagus Indigestion 3
I—Failure of Eructation 4
II—Failure of Omasal Transport 4
III—Failure of Abomasal Outflow 5
Other Causes of Ruminal Distention 5
Froth Accumulation in the Rumen 5
Rumen Acidosis 6
Abomasal Ulcers 6
Disorders that Cause Tympanitic Resonance (Pings) in Cattle 6
Left-Sided Pings 6
Left Displacement of the Abomasum 6
Rumen-Void Ping 7
Pneumoperitoneum 7
Right-Sided Pings 7
Right Displacement and/or Volvulus of the Abomasum 7
Cecal Dilatation and/or Volvulus 8
Distention of the Proximal Colon 9
Pneumorectum 9
Distention of the Small Intestine 9
Physometra 9
Ventral Sac of Rumen 9
Examination of the Calf 9
Examination of the Small Ruminant 12
Color of the Conjunctiva and Sclera 12
Body-Condition Scoring 13
Further Examination of the Eyes 13
Teeth 13
Lymph Node Examination 13
Lameness 14
Respiratory Examination 14
Examination of the Abdomen 15
Evaluation of the Urinary Tract 15
Examination of the Udder and Scrotum 16
Recommended Readings 16
Examination of the Surgical Patient (Pig) 16
General Considerations 16
Safety, Handling, and Restraint 17
Vital Signs 18
General Appearance 18
Skin 18
Head, Eyes, Ears, Nose, Mouth, Throat, and Neck 18
Cardiovascular 19
Respiratory 19
Gastrointestinal 19
Mammary 19
Musculoskeletal 19
Nervous 20
Reproductive 20
Urinary 20
Hemolymphatic 20
Ancillary Diagnostics 21
Intravenous Catheterization 21
Recommended Readings 22
2 Diagnostic Imaging 23
Radiography 23
Ultrasound 24
Nuclear Medicine, CT, and MRI 27
Recommended Readings 28
3 Presurgical Considerations 29
Preoperative Preparation 29
Evaluation of the Patient 29
Decision Making 29
Patient Positioning 29
Preparation of the Surgery Site 29
Preparation of the Surgeon 30
Draping the Surgical Field 31
Prevention of Peritonitis and Surgical Infection 31
Precontamination 31
Contamination 31
Recommended Readings 32
Surgical Considerations 32
Perioperative Antimicrobials and Analgesics 32
Perioperative Analgesics 33
Recommended Readings 33
Facilities and Restraining Devices 33
Introduction 33
Animal Behavior 34
Knots 34
Square Knot 34
Quick-Release Slip Knot 34
Bowline Knot 34
Restraint of Cattle 34
Moving Cattle 34
Getting a Cow to Stand 35
Moving Animals by Halter 35
Moving Animals through Chutes 36
Head Restraint 36
Halters 36
Nose Tongs 36
Head Gates 36
Kicking 36
Hobbles 36
Flanking 37
Tailing 37
Tail Ties 37
Surgical Position 37
Surgical Tables 37
Casting 37
Foot Restraint 37
Hind Feet 37
Front Feet 37
Restraint of Small Ruminants 38
Moving Small Ruminants 38
Head Restraint 38
Surgical Positioning 38
Restraint of Swine 39
Moving Swine 39
Head Restraint—Snare 39
Surgical Positioning 39
Body Restraint 39
Crates or Chutes 39
Barrier 39
Recommended Readings 39
Downer Cows: Case Management and Appropriate Use of a Floating Tank 39
Occurrence and Etiology 39
Definition of a Downer Cow 40
Pathophysiology of a Downer Cow 40
Assessment of a Downer Cow 40
History 40
Age of the Animal 41
Calving 41
Trauma 41
Behavior While Being Recumbent 41
Treatment History and Response 41
Physical Examination 41
Musculoskeletal Examination and Conditions 41
Pelvic Limb 42
Thoracic Limb 43
Vertebral Column 43
Other Areas of Concern 43
Nonfatal Musculoskeletal Conditions on a Downer Cow 44
Muscular Damage 44
Peroneus Tertius (That Is, Fibularis Tertius) Rupture (See Chapter 15) 44
Brachial, Radial Nerve Paralysis 44
Fatal Musculoskeletal Conditions on a Downer Adult Cow 44
Ventral Coxofemoral Luxation 45
Ruptured Gastrocnemius 45
Femoral Fracture 45
Vertebral Trauma and Lymphoma 45
Acute Systemic Inflammatory Conditions 45
Neurologic Deficit 45
Electrolyte Imbalance 45
Treatment and Management of a Down Cow 45
Stall and Stall Surface 45
Fluid-Replacement Therapy 46
Pain Control and Antiinflammatory Drugs 46
Antibiotic Therapy 46
Lifting a Cow 46
Physical Assistance 46
Lifting Straps 46
Hip Clamps 46
Inflatable Ball 47
Flotation Tanks/Aqua Cow 47
Complications 47
Recommended Readings 49
Biosecurity 49
Recommended Readings 50
Special Considerations When Working with Rescue Organizations 50
Recommended Readings 54
4 Fluid Therapy 55
Estimating Rehydration Needs 55
Choice of Solution 56
Fluid Therapy in Cattle with Metabolic Acidosis 56
Alkalinizing Solutions 56
Calculating Base Deficit 57
Electrolyte Needs 57
Summary 57
Fluid Therapy in Cattle without Metabolic Acidosis 57
Nonalkalinizing Solutions 57
Hypertonic Saline Solution 58
Summary 58
Equipment and Techniques 58
Intraruminal Administration 58
IV Administration 58
Recommended Readings 59
5 Sedation, General Anesthesia, and Analgesia 60
Preparation for Sedation or General Anesthesia in Farm Animals 60
Preparation of the Patient 60
Preparation of Facility and Equipment/Supplies 60
Sedation of Farm Animals 62
General Considerations 62
Cattle 62
Sheep and Goats 63
II Bovine (Adult) 179
12 Surgery of the Bovine (Adult) Integumentary System 179
Wounds 179
Wound Healing 179
Inflammation 179
Debridement 179
Repair 179
Maturation 179
Factors That Affect Wound Healing 179
Wound Management 180
Patient Assessment 180
Patient Preparation 180
Anesthesia 180
Wound Assessment 180
Wound Lavage 180
Wound Debridement 180
Management Options 180
Primary Wound Closure 181
Delayed Primary or Secondary Closure 181
Second-Intention Healing 182
Bandaging 183
Wet-to-Dry Dressings 183
Semiocclusive, Nonadherent Dressings 183
Topical Medications 183
Aloe Vera Extract 183
Triple Antibiotic Ointment 183
Silver Sulfadiazine 183
Nitrofurazone 183
Povidone-Iodine Ointment 183
Petroleum 183
Systemic Medication 183
Tetanus Toxoid 183
Systemic Antibiotics 183
Myiasis 184
Exuberant Granulation Tissue (Proud Flesh) 184
Recommended Readings 184
Skin Grafts 184
Introduction 184
Patient Selection 185
Graft Harvest 185
Graft Implantation 185
Aftercare 185
Outcome 185
Recommended Readings 186
Dehorning/Cornuectomy 186
Historical Perspective 186
Anatomy 186
Restraint 187
Anesthesia and Analgesia 187
Methods 187
Chemical Dehorning 187
Thermal Dehorning 188
Portable 188
Corded 188
Cutting Dehorning 188
Tube Dehorner 188
Scoop/Gouge Dehorner 188
Keystone 189
Electrically Powered 189
Obstetric Wire and Others 189
Genetic and Other 189
Cosmetic Dehorning 190
Preparation 190
Technique 190
Aftercare and Complications 190
Recommended Readings 191
Insertion of a Nose Ring 192
13 Surgery of the Bovine (Adult) Respiratory and Cardiovascular Systems 193
Diagnostics 193
Physical Examination 193
Endoscopic Examination 194
Imaging Examination 195
Recommended Readings 195
Nasal Obstruction 196
Recommended Readings 199
Disorders of the Paranasal Sinuses 199
Occurrence and Etiology 199
Recommended Readings 201
Disorders of the Nasopharynx 201
Occurrence and Etiology 201
Pharyngeal Trauma 202
Pharyngotomy 202
Retropharyngeal Mass 203
Pharyngeal Collapse and Swelling 203
Persistent Dorsal Displacement of the Soft Palate 203
Palatoschisis (Cleft Palate) 203
Preoperative Treatments and Surgical Preparation 204
Surgical Technique 204
Postoperative Treatments 204
Recommended Readings 205
Disorders of the Larynx 205
Occurrence and Etiology 205
Preoperative Treatments and Surgical Preparation 206
Surgical Technique 206
Arytenoidectomy 206
Postoperative Treatments and Complications 206
Other Surgical Approaches to Laryngeal Obstruction 207
Laryngeal Obstruction in Adult Cattle 208
Recommended Readings 208
Disorders of the Extrathoracic Trachea 209
Tracheotomy and Temporary Tracheostomy Tube 209
Permanent Tracheostomy 210
Tracheal Collapse 210
Tracheal Stenosis 211
Extratracheal Compression 211
Intratracheal Obstruction 212
Tracheal Resection and Anastomosis 212
Recommended Readings 212
Disorders of the Lungs and Pleural Cavity 212
Occurrence and Etiology 212
Management 212
Anesthetic Considerations for Lateral Thoracotomy 213
Surgical Considerations 213
Recommended Readings 215
Diaphragmatic Hernia 215
Recommended Readings 216
Disorders of the Pericardium 216
Lateral Thoracotomy 217
Sternal Thoracotomy (Median Sternotomy) 218
Idiopathic Hemorrhagic Pericardial Effusion 218
Postoperative Management 219
Recommended Readings 221
Diseases of the Vascular System: Thrombophlebitis and Patent Ductus Arteriosus 221
Occurrence and Etiology 221
Patent Ductus Arteriosus 221
Recommended Readings 222
14 Surgery of the Bovine Digestive System 223
Surgical Diseases of the Oral Cavity 223
Anatomic Considerations 223
Diagnosis and Treatment (Dental Diseases are Covered in Chapter 9) 223
Lacerations 223
Cross-Suckling 225
Partial Glossectomy 226
Oropharyngeal Membrane 226
Salivary Glands 226
Recommended Readings 228
Mandibular Fractures, Osteomyelitis, and neoplasia 228
Mandibular Fractures 228
Surgical Options for Fractures 229
Figure-8 Wiring 230
Intraoral Acrylic Splinting 230
Screw Fixation 231
U Bar 231
Kirschner-Ehmer 231
Plating 233
Complications 233
Osteomyelitis 234
Neoplasia (see also Chapter 8) 235
Recommended Readings 236
Esophageal Surgery 237
Esophageal Anatomy 237
Clinical Signs of Esophageal Disease 237
Diagnosis of Esophageal Disease 237
Esophagoscopy 238
Bovine Esophageal Radiology 238
Surgical Considerations 238
Esophageal Closure 239
Foreign Body Obstruction 239
Cervical Esophagotomy 241
Transthoracic Esophagotomy 241
Esophageal Perforation or Laceration 241
Stricture 241
Nonsurgical Management 241
Surgical Management 241
Esophagomyotomy 242
Partial Esophageal Resection 242
Complete Esophageal Resection 242
Fenestration through a Cicatrix 242
Esophageal Diverticulum 242
Occurrence and Diagnosis 242
Treatment 242
Esophageal Fistula 242
Esophageal Ulceration 242
Megaesophagus 242
Recommended Readings 243
Approaches to the Bovine Abdomen 243
Anatomy 243
Approaches to the Abdomen 244
Left-Paralumbar Fossa Celiotomy 244
Right-Paralumbar Fossa Celiotomy 246
Right-Paramedian Celiotomy 247
Ventrolateral Celiotomy 247
Ventral Midline Celiotomy 248
Right Paracostal Approach 249
Left Oblique Celiotomy 249
Recommended Readings 249
Surgery of the Ruminant Forestomach Compartments 249
Anatomy and Physiology 249
Etiology and Pathogenesis 249
Vagal Indigestion 250
Cornell Classification of Vagal Indigestion in Cattle 250
Clinical Findings 250
Clinical Pathology 251
Medical Treatments 253
Surgical Treatment 253
Left-Flank Celiotomy 253
Rumenotomy with the Rumen Board or Weingarth Apparatus 254
Rumenotomy after Suturing the Rumen Wall to the Skin 254
Transruminal Exploration 255
Closure 256
Postoperative Management 257
Prognosis 257
Placement of a Commercial Rumen Fistula in Adult Cattle 257
Temporary Rumen Fistula 258
Lactic Acidosis 259
Recommended Readings 260
Surgery of the Abomasum 260
Introduction 260
Abomasal Physiology and Anatomy 260
Abomasal Function 261
Secretions 261
Motility 261
Surgical Conditions of the Abomasum 262
Altered Abomasal Outflow 262
Abomasal Displacement Syndromes 262
Left Abomasal Displacement (LDA)— General Considerations 262
Definition and Incidence. 262
Predisposing Factors. 263
Stage of Lactation. 263
Anatomy. 263
Genetics. 263
Nutrition. 263
Metabolism. 264
Management and Environment. 264
Diagnosis and General Prognosis 264
Diagnosis. 264
Prognosis (general). 265
Treatment 266
General considerations. 266
Medical management and supportive care. 266
Left Abomasal Displacement (LDA): Closed Procedures 267
Rolling. 268
Preparation. 268
Procedure. 268
Posttreatment care. 268
Prognosis and complications. 268
Blind Tack/Toggle Pin. 268
Preparation. 269
Procedures. 269
Postoperative care. 269
Prognosis and complications. 270
Left Abomasal Displacement: Open Surgical Procedures 271
Right-Paralumbar Fossa (Flank) Omentopexy. 271
Preparation. 271
Approach. 272
Abomasal repositioning. 272
Omentopexy. 273
Prognosis and complications. 274
Pyloropexy with or without omentopexy. 275
III Calf 505
17 Surgery of the Calf Gastrointestinal System 505
Abomasal Disease 505
Abomasal Displacement 505
Diagnosis 505
Treatment 505
Medical Management 506
Surgical Treatment 506
Abomasal Volvulus 506
Luminal Obstruction 507
Abomasal Ulceration 508
Diagnosis 508
Type I Ulcers 508
Type II Ulcers 508
Type III and IV Ulcers 508
Management 509
Prognosis 509
Recommended Readings 509
Ruminal Distention in Calves 509
Clinical Findings 510
Rumen Fistula 510
Surgical Technique 510
Recommended Readings 511
Small-Intestinal Surgery in Calves 511
Recommended Readings 512
Cecal Intussusceptions 512
Occurrence 512
Symptoms and Diagnosis 512
Therapy and Prognosis 513
Recommended Readings 513
Surgery of the Colon 514
Intussusception of the Spiral Colon 514
Luminal Obstruction of Spiral Colon 514
Atresia Coli 514
Occurrence and Etiology 514
Clinical Signs and Diagnosis 515
Surgical Management 515
Right-Flank Approach 516
Median Approach 516
Prognosis 517
Atresia Ani (Et Recti) 517
Occurrence and Etiology 517
Clinical Signs and Diagnosis 517
Surgical Management and Prognosis 517
Recommended Readings 518
18 Surgery of the Calf Musculoskeletal System 519
Polydactyly 519
Recommended Readings 519
Surgery of Flexural and Hyperextension Deformities 519
Clinical Presentation and Management of Hyperextension Deformities 519
Clinical Presentation and Management of Flexural Deformities 520
Diagnosis 520
Management 521
Surgical Correction 522
Anatomic Considerations 522
Surgical Alternatives 522
Prognosis 523
Recommended Readings 523
Surgery of Angular and Rotational Limb Deformities 523
Etiology 523
Clinical Presentation 524
Diagnosis 524
Management 525
Medical Management 525
Surgical Management 525
Preoperative Measurements 526
Closing Wedge Osteotomy 526
Step-wise Osteotomy 526
Cylindrical (i.e., Dome) Osteotomy 527
Surgical Techniques 527
Prognosis 527
Recommended Readings 527
Surgery of Septic Joints 528
Diagnosis 528
Treatment 528
Arthrodesis 530
Prognosis 531
Recommended Readings 531
Patellar Luxation 531
Clinical Presentation and Diagnosis 532
Classification of Patellar Luxation 532
Management 532
Closure 535
Postoperative Care 535
Recommended Readings 535
Musculoskeletal System: Spastic Paresis (Elso Heel) 536
Surgical Treatment 537
Recommended Readings 539
19 Miscellaneous Abnormalities of the Calf 540
Umbilicus 540
Umbilical Hernias/Masses 540
Uncomplicated Umbilical Hernias 540
Umbilical Hernias with Localized Abscesses/Subcutaneous Infection 540
Umbilical Hernias with Infection of the Umbilical Cord Remnants 541
Umbilical Abscesses/Chronic Omphalitis 544
Urachal Cysts/Ruptures 545
Diagnosis 546
Surgical Management 546
Complications 547
Recommended Readings 547
Otitis Media/Interna: Calves 547
Anatomical and Pathophysiological Considerations 547
Clinical Signs 548
Diagnosis 548
Treatment 548
Ventral Tympanic Bulla Osteotomy 548
Recommended Reading 550
IV Sheep and Goat 551
20 Surgery of the Sheep and Goat Integumentary System 551
Skinfold Ablation 551
Predator Attack 551
Tail Docking 553
Caprine Disbudding and Dehorning 554
Disbudding 554
Surgical Cosmetic Dehorning 555
Descenting Bucks 556
Lumps and Bumps of Sheep and Goats 557
Lymphadenopathy 557
Lesions Not Associated with Lymph Nodes 558
Head 558
Neck 558
Thorax, Abdomen, and Perineum 559
Recommended Readings 559
21 Surgery of the Sheep and Goat Digestive System 561
Surgery of the Forestomach 561
Abomasal Surgery 562
Abomasotomy 562
Surgical Management of Intestinal Obstruction or Trauma 562
Exploratory Laparotomy 563
Rumen, Abomasal, and Esophageal Fistulization (Cannulization) 563
Surgical Procedure 563
Rectal Prolapse 564
Classification by Severity 564
Recommended Readings 567
22 Surgery of the Sheep and Goat Musculoskeletal System 568
Patellar Luxation in Sheep and Goats 568
Surgical Approach 568
Lateral Capsule Imbrication 568
Tibial Tuberosity Transposition 568
Sulcoplasty 569
Postoperative Management 570
Summary 570
Recommended Readings 570
23 Surgery of the Sheep and Goat Reproductive System and Urinary Tract 571
Anesthesia and Restraint 571
Surgery of the Female Reproductive Tract 571
Cesarean Section 571
Restraint and Anesthesia 571
The Ventral Abdominal Paramedian Approach 571
Left-Flank Laparotomy. 572
Ventral Midline Approach. 573
Postsurgical Complications and Fertility 573
Ovariectomy and Ovariohysterectomy 575
Laparoscopy 576
Laparoscopic-Assisted Ovariectomy 577
Complications of Laparoscopic Techniques in Small Ruminants 577
Surgical Embryo Collection 578
Recommended Readings 579
Surgery of the Male Reproductive and Urinary Tract 579
Castration 579
Cryptorchid Castration 581
Vasectomy 581
Epididymectomy 582
Translocation of the Penis 582
Recommended Readings 583
Urolithiasis 584
Preoperative Considerations 584
Potential Complications 585
Surgical Treatment 585
Urethral Surgery 585
General Considerations 585
Urethral Process Amputation 585
Urohydropulsion 585
Urinary Acidification 586
Penectomy (Penile Amputation) 586
Perineal Urethrostomy 588
Ischial Urethrostomy 588
Modified Proximal Perineal Urethrostomy 589
Ischial Urethrotomy 589
Urethrotomy 590
Surgery of the Urinary Bladder 591
General Considerations 591
Cystotomy 591
Tube Cystostomy 592
Bladder Marsupialization 594
Postoperative Care and Complications 595
Recommended Readings 595
24 Congenital Anomalies in the Sheep and Goat 596
Intersex 596
Cryptorchidism 596
Cleft Palate 598
Atresia Ani 598
Recommended Readings 599
V Swine 601
25 Surgery of the Swine Digestive System 601
Gastrointestinal Tract 601
Abdominal Approaches and Body Wall Closure/Abdominal Exploration 601
Gastric Ulcers 601
Intestinal Obstruction 602
Atresia Ani 603
Rectal Stricture 603
Rectal Prolapse 604
Umbilical Hernia 606
Recommended Readings 606
26 Surgery of the Swine Musculoskeletal System 608
Foot Problems (Claw Lesions) 608
Osteitis and Osteomyelitis of the Digit 608
P3 Infection 608
Septic Interphalangeal Joints 608
Digit Amputation 608
Ankylosis of the Proximal or Distal Interphalangeal Joint 610
Recommended Readings 613
Fracture Repair 613
Specific Fractures 614
Fractures of the Humerus 614
Fractures of the Tibia/Fibula 614
Femoral Fractures 614
Recommended Readings 616
27 Surgery of the Swine Reproductive System and Urinary Tract 617
Surgery of the Male Swine Reproductive System and Urinary Tract 617
Castration 617
Unilateral Castration 618
Cryptorchid Castration 619
Inguinal Hernia 620
Preparation of Teaser Boars 622
Prolapsed Penis 622
Persistent Frenulum 622
Preputial Prolapse 622
Resection of Preputial Diverticulum 622
Surgery of the Female Swine Reproductive System and Urinary Tract 623
Vaginal Prolapse 623
Bladder Displacement or Retroversion 623
Ovariectomy 625
Ovariohysterectomy 626
Ovariectomy for Sterilization of Pet Pigs 627
Choice of Procedure: Laparoscopic Ovariectomy vs. Open Ovariectomy or Ovariohysterectomy 627
Technique for Laparoscopic Ovariectomy 627
Open Ovariectomy or Ovariohysterectomy 628
Cesarean Section 628
Uterine Prolapse 630
Mastectomy 631
Recommended Readings 631
Index 633
A 633
B 636
C 637
D 640
E 641
F 642
G 643
H 644
I 645
J 646
K 647
L 647
M 648
N 650
O 650
P 651
Q 654
R 654
S 655
T 658
U 660
V 661
W 661
X 662
Y 662
Endsheets End-I