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 of pain which is increased by the
bearing of weight upon the affected member, or by the moving of such a
distressed part, results in an irregularity in locomotion, which is
known as lameness or claudication. A halting gait may also be produced
by the abnormal development of a member, or by the shortening of the leg
occasioned by the loss of a shoe.

For descriptive purposes lameness may be classified as _true_ and
_false_. _True lameness_ is such as is occasione