206 THE STOCK owner's ADVISER. 



Teeatmets't. — Reduce the dislocation by manipulation, exten- 

 sion, traction, etc., brought to bear on the limb. It is easily 

 reduced in the dog, but rarely in the ox. 



STIFLE-JOINT LAMENESS. 



Stifle-joint lameness is of two kinds, that within the joint 

 proper and that in the patella articulation. The pathology of 

 both forms is alike — inflammation, ulceration of the articular 



cartilage, and of the semi- 

 lunae discs, and deposit of 

 porcellaneous deposit, 

 when caused by rheuma- 

 tism. 



Symptoms. — T h e ani- 

 mal stands with the limb 

 bent, the thigh flexed upon 

 the pelvis, and the leg 

 upon the thigh. 



In lameness from dis- 

 ease of the bursa-patella, 

 Fig. 49— Stifle Joint Lameness. , i i it ^ 



the horse generally walks 



with his toe dragging the ground, the forward movement of the 

 lim'b being performed with great difficulty, the toe of the foot 

 describing the segment of a circle at each step. 



DISLOCATION OF THE PATELLA. 



Complete dislocation seldom takes place. Partial dislocation, 

 however, is of very common occurrence, the bone slipping on 

 the outside in all cases. The formation of the parts render it 

 almost impossible for the bone to slip on the inside. 



Cause. — Falling, stepping on cobble stones, or on a rolling 

 stone. It follows debilitating diseases, as influenza, etc. It is 

 generally seen in young, unthrifty animals. It may occur from 

 a scrofulous ostitis, hereditary tendency, faulty conformation, 

 ^tc. Allowing weak colts to run on hilly pastures may cause it. 



