218 PRINCIPLE? OP TETEBINAEY STJBGEEY 



either floating free or attached by a pedicle to the synovial 

 membrane. 



What are the corpora libra composed of ? 



Fibrous tissue, bony or cartilaginous, or a mixture of 

 ' these. 



How large are they ? 



They vary in size from millet seed to pigeon egg size. 



How are copora libra developed ? 



1. Usually due to a traumatism, as a piece of cartilage ot 

 bone may have been loosened by a complicated distortion, 

 contusion of a joint, etc. 



2. From villous outgrowths of the synovial membrane. 



3. From, blood clots and fibrin poured out during an 

 acute inflammation. 



4. From detached pieces of cartilage, as in arthritis 

 deformans. 



5. From extra capsular neof ormations which have invaded 

 the joint cavity. 



Are corpora libra often seen in animals ? 



They are rare, and only occasionally seen in the knee, 

 hock and stifle joints. 



W hat symptoms do they give rise to ? 



By wedging the joint a sudden lameness of intermittent 

 character which cannot be accounted for suggests loose bodies 

 in the joint. Careful palpation may or may not detect them. 



How do you treat loose bodies in the joint 9 



The difficulties connected with executing an aseptic 

 operation in the horse and applying the proper dressing to 



