Feot and Limb Troubles. 235 



Dropped Hip is a fairly common fracture occurring in 

 horses, sometimes seen in cattle, being in fact the break- 

 ing down of the outer point of the hip bone, the result of 

 rushing through narrow doorways or animals crowding 

 in such places, the careful stockman will always give his 

 stock plenty of time to get through doorways, gateways, 

 etc. Owing to the action of the muscles attached union 

 of the parts is rare, generally the fibrous joint is the 

 result (see Fractures), in other cases the parts do not 

 unite and an operation has to be performed to remove the 

 loose piece of bone. A somewhat similar deformity is 

 that due to fracture of the point of the bone of the but- 

 tock, just below the root of the tail, to detect the lesion 

 one has to stand to one side of the animal, and in dropped 

 hip behind. Pain and swelling, together with lameness, 

 and occasionally formation of pus aid in the detection of 

 these lesions due to accidents. 



Stifle out (luxation of the patella) exists in two forms, 

 the partial and complete; the former usually in young 

 colts, the result of heredity, stallions poorly muscled 

 through the stifles get such stock; the latter in older ani- 

 mals, the result of an accident. In young colts the bone 

 will be seen to slip in and out, a clicking noise being 

 made at each step; for such cases a mild blister repeated 

 at two-week intervals will often aid the young patient. 

 To avoid such cases feed well, do not keep on very hilly 

 pastures, and avoid making the foal follow its dam dur- 

 ing the day while working. The construction (anatomy) 

 of the parts will aid in understanding this trouble 

 and the means of reduction. In partial dislocations in 

 grown horses a sharp crack of a whip will startle the 



