Lameness of the Horse | Page 2

106 Splints 107 Open Fetlock Joint 110 Phalangeal Exostosis (Ringbone) 118 Open Sheath of the Flexors of the Phalanges 124 Luxation of the Fetlock Joint 125 Sesamoiditis 127 Fracture of the Proximal Sesamoids 128 Inflammation of the Posterior Ligaments of the Pastern Proximal Interphalangeal Joint 129 Fracture of the First and Second Phalanges 131 Tendinitis (Inflammation of the Flexor Tendons) 135 Chronic Tendinitis and Contraction of the Flexor Tendons 137 Contracted Tendons of Foals 143 Rupture of the Flexor Tendons and Suspensory Ligament 146 Thecitis and Bursitis in the Fetlock Region 150 Arthritis of the Fetlock Joint 152 Ossification of the Cartilages of the Third Phalanx 155 Navicular Disease 157 Laminitis 160 Calk Wounds (Paronychia) 170 Corns 172 Quittor 174 Nail Punctures 178
SECTION IV Lameness in the Hind Leg
Anatomo-Physiological Consideration of the Pelvic Limbs 185 Hip Lameness 195 Fractures of the Pelvic Bones 196 Fractures of the Femur 199 Luxation of the Femur 201 Gluteal Tendo-Synovitis 203 Paralysis of the Hind Leg 204 Paralysis of the Femoral (Crural) Nerve 204 Paralysis of the Obturator Nerve 206 Paralysis of the Sciatic Nerve 208 Iliac Thrombosis 209 Fracture of the Patella 212 Luxation of the Patella 213 Chronic Gonitis 217 Open Stifle Joint 220 Fracture of the Tibia 222 Rupture and Wounds of the Tendo Achillis 224 Spring-Halt (String-Halt) 225 Open Tarsal Joint 229 Fracture of the Fibular Tarsal Bone (Calcaneum) 230 Tarsal Sprains 232 Curb 233 Spavin (Bone Spavin) 235 Distension of the Tarsal Joint Capsule (Bog Spavin) 242 Distension of the Tarsal Sheath of the Deep Digital Flexor (Thoroughpin) 246 Capped Hock 251 Rupture and Division of the Long Digital Extensor (Extensor Pedis) 253 Wounds from Interfering 255 Lymphangitis 257 Authorities Cited 265 Index 267

ILLUSTRATIONS
Page Fig. 1--Hoof Testers 53 Fig. 2--Muscles of Left Thoracic Limb, Lateral View 56 Fig. 3--Muscles of Left Thoracic Limb, Medial View 57 Fig. 4--Sagital Section of Digit and Distal Part of Metacarpus 59 Fig. 5--Ordinary Type of Heavy Sling 62 Fig. 6--A Sling Made in Two Parts 63 Fig. 7--Paralysis of the Suprascapular Nerve of Left Shoulder 76 Fig. 8--Radial Paralysis 78 Fig. 9--Merillat's Method of Fixing Carpus in Radial Paralysis 79 Fig. 10--Contraction of Carpal Flexors, "Knee Sprung" 95 Fig. 11--Pericarpal Inflammation and Enlargement Due to Injury 99 Fig. 12--Hygromatous Condition of the Right Carpus 100 Fig. 13--Carpal Exostosis in Aged Horse 101 Fig. 14--Exostosis of Carpus Resultant from Carpitis 102 Fig. 15--Distal End of Radius, Illustrating Effects of Carpitis 102 Fig. 16--Posterior View of Radius, Illustrating Effects of Splint 108 Fig. 17--Phalangeal Exosteses 120 Fig. 18--Rarefying Osteitis in Chronic Ringbone 121 Fig. 19--Phalangeal Exostoses in Chronic Ringbone 122 Fig. 20--Contraction of Superficial Digital Flexor Tendon Due to Tendinitis 138 Fig. 21--Contraction of Deep Flexor Tendon Due to Tendinitis 139 Fig. 22--Chronic Case of Contraction of Both Flexor Tendons of the Phalanges 140 Fig. 23--Contraction of Superficial and Deep Flexor Tendons 141 Fig. 24--Contraction of Superficial Digital Flexor and Slight Contraction of Deep Flexor Tendon 142 Fig. 25--"Fish Knees" 145 Fig. 26--Extreme Dorsal Flexion 146 Fig. 27--A Good Style of Shoe for Bracing the Fetlock 148 Fig. 28--The Roberts Brace in Operation 149 Fig. 29--Distension of Theca of Extensor of the Digit 151 Fig. 30--Rarefying Osteitis Wherein Articular Cartilage Was Destroyed 153 Fig. 31--Ringbone and Sidebone 156 Fig. 32--Position Assumed by Horse Having Unilateral Navicular Disease 159 Fig. 33--The Hoof in Chronic Laminitis 165 Fig. 34--Effects of Laminitis 166 Fig. 35--Cochran Shoe, Inferior Surface 168 Fig. 36--Cochran Shoe, Superior Surface 169 Fig. 37--Hyperplasia of Eight Forefoot Due to Chronic Quittor 176 Fig. 38--Chronic Quittor, Left Hind Foot 177 Fig. 39--Skiagraph of Foot 179 Fig. 40--Sagital Section of Eight Hock 186 Fig. 41--Muscles of Right Leg; Front View 187 Fig. 42--Muscles of Lower Part of Thigh, Leg and Foot 189 Fig. 43--Right Stifle Joint; Lateral View 190 Fig. 44--Left Stifle Joint; Medial View 191 Fig. 45--Left Stifle Joint; Front View 193 Fig. 46--Oblique Fracture of the Femur 200 Fig. 47--Fracture of Femur After Six Months' Treatment 201 Fig. 48--Aorta and Its Branches Showing Location of Thrombi 210 Fig. 49--Thrombosis of the Aorta, Iliacs and Branches 211 Fig. 50--Chronic Gonitis 218 Fig. 51--Position Assumed in Gonitis 219 Fig. 52--Spring-halt 226 Fig. 53--Lateral View of Tarsus Showing Effects of Tarsitis 228 Fig. 54--Right Hock Joint 231 Fig. 55--Spavin 235 Fig. 56--Bog Spavin 243 Fig. 57--Thoroughpin 247 Fig. 58--Fibrosity of Tarsus in Chronic Thoroughpin 248 Fig. 59--Another View of Case Shown in Fig. 58 249 Fig. 60--"Capped Hock" 252 Fig. 61--Chronic Lymphangitis 258 Fig. 62--Elephantiasis 259

INTRODUCTION
Lameness is a symptom of an ailment or affection and is not to be considered in itself as an anomalous condition. It is the manifestation of a structural or functional disorder of some part of the locomotory apparatus, characterized by a limping or halting gait. Therefore, any affection causing a sensation and sign