SHOULDER LAMENESS IN THE HORSE. 
479 
and it continues with increasing severity, characterized by 
exacerbations and decline of the limping. Thoroughly dumb¬ 
founded as to what can be the matter, the horse is submitted to 
the veterinarian, and the above history recited. The veterinarian 
finds that in the stable the horse stands with all legs in their 
normal position, and in reply to his query is told that he has 
never been detected pointing. At the walk no lameness can 
be discerned, but as soou as trotted to the halter, he begins to 
nod greatly, and on careful observation of the character of his 
gait, the affected shoulder will be noticed to hesitate in its for¬ 
ward movement; it is not carried ahead with the freedom of 
extension that its fellow is. The discrepancy between lameness 
in motion and the manifestation of it while at rest or in walk¬ 
ing is very great. Returning to the stable for further examina¬ 
tion it is observed that the horse places the lame leg squarely 
under him and throws upon it its proportionate amount of weight. 
The conclusion is then reached that the lesion is not con¬ 
cerned in weight-bearing, but must be associated with the move¬ 
ment of the extremity, and, from his gait, with extension. 
Further confirmation of this is found in the fact that the foot 
is normal on manipulation and examination, and all evidence 
of disease of the lower portion of the extremity is lacking. 
Now, a careful examination of the shoulder is made, and, remem¬ 
bering the difficulty experienced by the patient in carrying the 
ray forward, the muscles engaged in that service are manually 
gone over. It will be extremely rare that swelling or heat will 
be observed, and ocularly nothing will be found amiss. On the 
affected side pressure upon the mastoido-humeralis as it passes 
over the point,of the shoulder causes pain, evidenced by the 
quick impulsive cringe when pressed violently by the thumb. 
A similar proceeding on the opposite shoulder is met with little 
or no sign of pain. Driving the thumb more deeply, moving 
the mastoido-humeralis out of its position, and pressing the 
coraco-radialis into the bicipital groove, all evidences of the 
pain first observed are intensified, and those observing the 
aspect of the patient usually say in one voice: “Doctor, you 
