REPORTS OF CASES. 
623 
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REPORTS OF CASES. 
EXTRACTS FROM THE CLINICAL RECORDS OF THE 
AMERICAN VETERINARY COLLEGE HOSPITAL. 
By C. E. Clayton, D. V. S., Assistant Surgeon. 
ANOTHER CASE OF RUPTURE OF THE CORACO-RADIALIS— 
OSTEO-POROSIS. 
On Oct. 15th a gray gelding was given to us by Dr. Rob¬ 
ertson for a clinic and post-mortem. His condition was as 
follows: Osteo-porosis, manifested by enlarged maxillary 
bones. The scapulae, instead of being oblique, had assumed 
an horizontal direction, forming a right angle with the 
humeri, which seemed to retain their normal position. This 
situation of the scapulae caused a lessening in height of the 
animal of about five inches and a corresponding increase in 
length. At times he would try to straighten up, and when 
doing so his attitude would become almost normal, and on 
sinking back again it seemed as if^ his body were falling 
downward and backward between his forelegs, so that the 
anterior extremity of the sternum would recede until it was 
eight or nine inches posterior to its normal position, leaving a 
very large depression between the humeri. The scapulo-hu- 
meral articulations were very much enlarged, but not so very 
painful. When pressure was applied upon them, from forwards 
back, the scapulo-humeral angle seemed to increase and the 
scapulae temporarily resumed their oblique and natural position. 
