MANUAL FOR STABLE SERGEANTS. 



115 



foot, the swelling usually being most pronounced just above the 

 fetlock. 



Treatment, See paragraph 407. 



401. Sprain of the plantar ligament (Curb. fig. 46). 

 Causes. Violent efforts at rearing, pulling, and jumping. Usually 



seen in horses with weak, narrow, overbent hocks. 



Symptoms. A firm swelling at the back and lower part of the 

 hock, about 4 inches below 

 its point, giving the region 

 a curved appearance when 

 viewed from the side. Lame- 

 ness is rare. 



Treatment. When lameness 

 is absent, treatment is usually 

 unnecessary. If the swelling 

 is painful and hot, treat as 

 prescribed under general 

 treatment of sprains. (Par. 

 407.) 



402. Sprains of the hock, 

 fetlock, and pastern joints. 



Causes. Violent exertion, 

 slips, stepping on stones, trav- 

 eling oyer rough, uneven 

 ground . 



Symptoms. Lameness, ac- 

 companied by heat, pain on 

 pressure, and swelling. . 



Treatment. See paragraph 

 407. F IG . 46.-Curb. 



BURSAL AND SYNOVIAL ENLARGEMENTS. 



403. Under this heading are described bog spavin, thoroughpin, 

 and windgalls (wind puffs) of the fetlock. These enlargements are 

 chronic nonsensitive conditions which rarely cause lameness. 



404. Bog spavin. A distention of the joint capsule of the hock, 

 due to the presence of an abnormal amount of synovia, which causes 

 the capsule to bulge outward and forward. 



Causes. Long continued hard work, particularly at jumping, 

 pulling, and galloping. 



