88 LAMENESS IN THE HORSE. 



at the same time there is a certain similarity iu the 

 symptoms offered. Swiuging-leg lameness, with retarded 

 movement of the leg, or even dragging of the whole leg. If 

 the hip joint is diseased supporting-leg lameness is noticed, 

 while diseased conditions of the muscular elements do not, 

 as a rule, interfere with the function of the supporting leg. 

 Lameness is apt to increase on hard woik, backing and 

 abrupt turning. Sometimes the animal stai-ts out lame, 

 gradually driving out of the lameness ; or the reverse is 

 true. 



Paljxition. — Swelling, increased heat and pain may be 

 detected, and serve as valuable guides in locating the seat of 

 the lameness. 



2.— Inflammation cf the Tendon and Tendon Sheath 

 of the Middle Gluteus Muscle. 



Anatomy. — This, the largest of the glutei muscles, is 

 attached superiorly to the internal face of the gluteal fascia, 

 the aponeurosis of the longissimus dorsi, the superior face 

 and anterior angles of the ilium and the two ilio-sacral 

 ligaments. Inferiorly, it is inserted by means of two 

 branches on the trochanter major of the femur ; one tendon 

 is fixed on the summit ; the other, after gliding over the 

 cartilaginous surface of the convexity, where it forms a large 

 bursa, is inserted into the crest. (Chauveau.) 



History. — Lameness following falls, collisions, heavy 

 work, etc. 



Inspection. — When at rest the leg is usually flexed, or it 

 may support its full share of weight, this referring especially 

 to recent cases. During motion the animal trots obliquely, 

 like a dog, — that is, the hind-legs swerve from the straight 

 line, the forward stride being shortened. In chronic cases 



