FRACTURES. 18] 



Os Coronae. — Fracture of the os corona is of rather 

 frequent occurrence, but is not so common as fracture 

 of the OS suffraginis. The causes, symptoms, and treat- 

 ment are about the same as those of fracture of the os 

 suffraginis. 



Os Pedis. — Fracture of the os pedis is caused by con- 

 cussion, and occurs most frequently among running horses. 

 AVhile running they suddenly falter and pull up dead lame. 

 Soon very great heat can be felt around the coronet, and 

 on tapping with a hammer great pain is manifested. 

 Nothing can be done except to rest the animal, and en- 

 deavour to combat inflammation. In the majority of cases 

 it is an act of mercy to destroy the animal. 



Ribs. — The ribs are liable to fracture from external 

 violence, as falls, blows, kicks, etc. It often occurs with- 

 out being suspected. As a rule the case progresses 

 favourably. It has been noticed in the case of an animal 

 that was halter cast and ribs broken, that he walked in an 

 angular manner. During treatment quietude is essential, 

 and, if considered necessary, a bandage may be applied 

 around the body. 



Sternum. — The sternum is rarely fractured, but is more 

 subject to caries, due to inflammation caused by punctured 

 wounds, etc. 



Sijmptoms. — There is more or less swelling. After a time 

 pus is formed, and discharged pretty freely, after which the. 

 discharge dries up to a certain extent, and again breaks 

 out. It continues this way indefinitely. 



Treatment. — The treatment consists of cutting down upon 

 and removing the diseased parts of the bone with the bone- 

 spoon or forceps, and touching with dilute hydrochloric 

 acid, after which treat as a common wound. 



Femur. — Fracture of the neck of the femur constitutes a 

 very serious condition, and in a majority of cases renders 



