LAMENESS IN THE FORE LEG 171 



trated the tissues in the region of the coronary band. Often 

 calk wounds are self-inflicted. When animals are excited and in 

 turning crowd one another, they often perform dancing move- 

 ments which frequently result in deep calk wounds of the coro- 

 net. Some horses have a habit of i;esting the heel of one hind 

 foot upon the anterior coronary region of the other. While 

 sleeping in this position, if they are suddenly awakened, the 

 weight is abruptly shifted to the uppermost foot and the one un- 

 derneath is (because of the pain attending its being wounded) 

 quickly drawn out from under its fellow. In this way deep cuts 

 may divide the coronary band and inflict extensive injury to the 

 sensitive lamina as well. 



An infectious type of coronary inflannnation occurs in some 

 localities during the winter months, wherein the condition is 

 enzootic. 



Symptomatology. — Depending upon the manner in which 

 the injury b.as been produced, the appearance of the wound 

 varies and likewise lameness is more or less pronounced. If the 

 tissues are not divided and the wound is chiefly of the sul)sur- 

 face structures, there will not immediately occur pronounced 

 local evidence of the existence of injury ; but as soon as the lame 

 animal is nuide to move, the peculiar character of the impedi- 

 ment (supporting-leg lameness witli the affected foot kept well 

 in advance of its normal position) directs attention to the ex- 

 tremity and all of the symptoms of acute inflanunation are dis- 

 covered. 



Where a wound is inflicted which divides, in some manner, 

 the surface structures (skin, coronary band, or the hoof wall) 

 one's attention is at once called to the -i-xistence of the wound. 



Because of the fact that there is every facility for the pro- 

 duction of a sub-coronary and podophylous infection, these 

 wounds should receive prompt attention. In some instances, 

 the pastern joint is opened by calk wounds and then, of course, 

 an infectious arthritis succeeds the injur3\ 



Treatment. — In all contused wounds of the coronary region 

 the parts need thorough cleansing; the hair, if long is clipped 

 and a cataplasm is applied. Or preferably, an iodin-glycerin 

 com])ination of one part of iodin to four parts of glycerin is 



