I 
REPORTS OF CASES. 
315 
tension forwards of the right extremity alone, and only with 
great difficulty and reluctance. The point of the shoulder 
was warm and swollen, yet not to a very great extent. The 
lesion was located in the bicipital groove, and the case was 
considered to be one of sprain of the flexor-brachii as it passes 
over the humeral surface. A simple treatment of rest, with 
warm fomentations was prescribed, and was followed for 
several days with considerable improvement. The swelling 
seemed to subside, the animal carried more weight upon his 
weak leg; the forward movement was effected with more 
freedom and the case presented quite a favorable appearance, 
until one morning, having been about a week under treatment, 
he was found to be very lame again, much more so indeed 
than before, refusing to put any weight on the leg or attempt 
to carry it forward. The shoulder remained about the same 
and the swelling of the leg had also the same appearance. A 
strong and severe blister was then applied, covering the entire 
front portion of the scapulo-humeral articulation. This was 
followed by good results so far as concerned the action of the 
blister but with little effect on the diseased leg, though after 
the first vesicant effects the animal seemed to be inclined to 
bear more weight on his leg, and possibly to carry it some : 
what forward more easily. This slight improvement was only 
temporary. The former stiffness returned ; all motion seemed 
to have ceased at the scapulo-humeral joint; when walking, 
he carried his off fore leg forward by a jump ; the external 
scapular muscles became very much atrophied, and the parts 
seemed to be deformed by a large plastic exudation on the 
upper end of the humerus. The owner was then notified of 
the incurable condition of his horse and ordered his destruc¬ 
tion. At the post mortem examination and after the prepara 
tion of the bones of the joint, the principal lesions were found 
to be located at the upper extremity of the humerus. The 
fibro-cartilage of the bicipital groove was entirely ulcerated, 
the spongy substance of the bone presenting itself rough and 
softened, and all around the groove, evidence of active perios¬ 
titis existed, bony deposits extending all over and reaching 
the inferior extremity of the scapula, principally around the 
tuberosity of the coracoid process. 
