A SPKAIN OR STRAIN. 



195 



hydrarg. biniodi., one part to five of lard. Tr. of iodine may be 

 used with good results. 



Opening the bursa is advisable in some few cases, but should 

 be done as a last resort. AVhere it is thought advisable to open 

 a bursa, it should be done by a veterinary surgeon. There is no 

 danger, however, in opening the bursa in connection with the 

 extensor metacarpi magnus, constituting what is termed "capped 

 knee." This bursa may be punc- 

 tured without any hesitation, 

 and the fluid allowed to escape. 

 The puncture should be made at 

 the lowest margin of the swell- 

 ing, and upon its inner side. 

 Press out the fluid and keep the 

 walls of the sac in apposition by 

 applying an antiseptic bandage. 

 The bandage should be rolled 

 around the knee from above 

 downwards, and allowed to re- 

 main without change for five or 

 six days, if no inconvenience is 

 caused to tlio patient. If signs 

 of pains are manifested, the 

 bandage should be removed and 

 adjusted. 



Milch cows kept in-doors are liable to have enormously en- 

 larged knees from distention of this bursa, caused by bruising 

 while lying u]ton floors. These may be opened with safety. 

 The best method is to insert a seton right through the swelling 

 and allow it to remain in for three or four weeks, the knee to be 

 protected from further injury by a good, thick bed, or by a 

 thick flannel bandage wrapped round it. 



CARPITIS, OR INFLAMMATION OF THE KNEE. 



This joint, one of the most beautiful structures in the body, 

 is seldom diseased, unless from the infliction of direct or indirect 



Fig. 42 — Bursal Enlargements 

 of Fetlocks. Commonly 

 known as wind gall. 



