340 VETERINARY SURGICAL THERAPEUTICS. 
afterwards a compressive bandage. Roettger-made a free opening with the 
bistouri and covered the hock with a blistering preparation. TheSe 
primitive modes must now give way to aseptic puncture with the trocar, 
which renders the action of firing more certain. 
Todined injections have been frequently used in the treatment of tarsal 
thoroughpin. Almost all those that have used them are unanimous in 
their praise. The internal growth being the largest, it is ordinarily on | 
that side that the puncture is made, after casting the horse on the affectéd 
side; it can also be made on the outer side, the animal standing or placed 
in the stocks. Bouley, Barry, Rey, Knoll, Verrier, Abadie, Dupon have thus 
cured enormous thoroughpins that had resisted firing ; we have also obtained 
_good results with this treatment and can recommend it. But yet the opera- 
tion is without danger only when it is done antiseptically. The ordinary | 
precautions are not sufficient, as proved by the failures of Pressecq and 
of Verrier, who, however, operated with all the caution possible before 
antisepsy was known. Pressecq clipped the hair and punctured the tumor 
with a trocar having a silver canula; the tincture of iodine was mixed with 
an equal quantity of water ; the operation was complicated with suppurative 
synovitis. Verrier used the iodine solution to the third; he also had 
suppurative synovitis. With strict asepsy, these accidents are not to be 
feared. 
It is to the complication of an operation that is due the discovery of a 
new therapeutic process. Biot, in puncturing a tendinous thoroughpin 
of the hock, had a profuse hemorrhage; he had to withdraw the canula, 
and to close the wound with the bleeding knot used in phlebotomy; the 
tumor was filled with blood and thus transformed into true hematocele. 
‘The horse was left to rest for several days and then put to work; three 
‘months after the operation, the thoroughpin had entirely disappeared. A 
little time later, having a similar lesion to treat ina cow, this veterinarian 
-opened the corresponding saphena vein, and after emptying the thoroughpin, 
filled the synovial sac with blood. Fifteen days after the operation, the 
tumor was hard, painless and not fluctuating. Three months later, recovery 
was complete. These cases of therapeutic hematocele are very interesting, 
but they do not seem to us free from danger. At any rate, it is better to 
wait for more numerous results. 
Line, fine points or needle cauterizations, iodined injections when 
firing fails or when blemishes are to be avoided; such is, for the present, 
the best therapeutics of thoroughpins. 
Cunean thoroughpin is the dropsy of the synovial which assists the 
sliding, on the inner face of the hock, of the cunean branch of the flexor 
metatarsi. At the place of spavins or a little above its ordinary seat, it 
forms a small olivary, fluctuating tumor, whose diagnosis is very easy. 
