RADICAL OPERATION FOR BURSAL ENLARGEMENTS. 
749 
Thorough pins may be simple or complicated 5 in the latter 
case they extend down the sheath on the inner side of the hock, 
following the tendon or perforans, or may be connected with 
bursa of tibio-tarsal articulation—in which case I would not 
recommend a radical operation, though have often seen punct¬ 
ured wounds entering the true joint, that were healed without 
causing stiffness. 
I was consulted during the spring of 1891 by the Fire De¬ 
partment of Anoka, Minn., regarding one of their horses, which 
was afterwards sent for treatment to the Experimental Station, 
St. Anthony Park, a photograph of which Dr. Reynolds has 
kindly presented for your consideration. See No. 6, which does 
not differ materially from No. 7 and No. 8, excepting the size 
being much larger, and confined to the upper part of the hock. 
No. 7 appeared July 12th, 1901, at our State veterinary 
meeting, Northfield, Minn., the subject being a black gelding, 
weighing about 1100 lbs., though greatly emaciated from over¬ 
work and lameness of both hind legs, more especially the right, 
at stifle, which with the enlargement of his left hock, made it 
difficult for him to stand. The stifle was cocained and fired) 
pyro-punctured, work being done by Dr. J. P. Foster, of Selby, 
S. Dak. The hock was then cleansed, shaven and cocained, 
and opened at two different places on the inner and one on 
the outer part of hock, the swelling being more extensive on 
the inner and upper portion, following the sheath of the per¬ 
forans tendon downwards and backwards to nearly two inches 
below the castor. The enlargement on the inner surface of the 
hock being something over 9 inches in length, with a septum 
between upper and lower portions of sack, which prevented 
direct communication between the two parts. Having thor¬ 
oughly opened and explored the different cavities, a ten per 
cent, solution of tincture of iodine was used to swab the parts 
out. After dressing the parts with antiseptic solution of cor¬ 
rosive sublimate, 1 to 1000, covering the parts with compresses, 
the leg was done up as in previous cases. The case showed no 
indication of haemorrhage two hours later, when the meeting 
