LAMENESS. 
63 
the Fact of their being often associated with disease in the cavity 
of the joint, we learn to regard these two affections — the ossificand 
the ulcerative — as, to a certain extent, correlative or consequent 
one upon the other ; nevertheless, on other occasions they shew 
themselves in solitary and independent forms. The following 
case of recent occurrence is well calculated to shew the connexion 
of periosteal with synovial disease, and their dependence one upon 
the other. 
October 25th, 1845, Mr. A’s bay gelding, while being led out 
for exercise, alongside of another horse, received a wound, trifling 
in appearance, from a kick upon the upper part of his near arm, 
which, at the time, bled rather freely, but did not cause lameness. 
The arm was fomented, and a dose of physic given next morning, 
during which day, on account of its being Sunday, he was not 
taken out to exercise. On the third day (Monday) he was led 
out, the physic requiring that he should be moved. There was 
now some trifling discharge from the wound, and a little stiffness 
on motion. The medicine operated well, and the fomentation was 
persevered in with unusual diligence, the owner being anxious 
about his horse, and all went on so well that on the seventh day 
from the accident, the animal was taking his exercise as usual by 
the side of another horse. 
On the 4th November (the eleventh day from the accident) the 
groom perceived the horse walking lame on his return from his 
accustomed exercise, and, becoming alarmed at this unexpected 
relapse of lameness, brought the patient to me. This was the first 
time I had seen him. It struck me at the moment that the wound, 
which was still issuing purulent matter, was directly upon the 
bone, and the circumstance led me to make the remark, that it 
was possible there existed some fracture. At this the owner 
smiled in evident disbelief; for, although lame, the horse used the 
leg too well to admit for a moment the idea of his limb being 
“ broken.” From this time, however, T had him confined to his 
stable ; and though under treatment, both constitutional and local, 
which commonly succeeds in cases of the kind, he daily grew 
worse. The arm took to swelling very much, and the discharge, 
which was at first purulent, became, on the third day after his con- 
finement — the fourteenth from the attack — of a synovial character, 
shewing that the shoulder joint had become opened, although a 
silver probe introduced could not be made to enter it, but appeared 
to abut against the outer condyle of the humerus. Every means 
the case would admit of, without risk of further injury, was em- 
ployed to detect fracture, and every now and then crepitus was 
distinctly heard ; and yet, that no main shaft of bone was broken 
was evident, from the fact of the animal being able (when made 
