318 VETERINARY SURGICAL THERAPEUTICS. 
the first degree—and the actions of the animal are again free, the trouble 
may disappear by exercise. If already the deviation is more accused, the 
overtaxed bony levers become inflamed; the tendons, carrying no longer 
their share of the weight of the body, retract more and more, and thus, 
generally speaking, tenotomy must be resorted to. By turn highly recom- 
mended and again objected to severely, this operation often gives imme- 
diate and remarkable results, but quite as often the results are far from 
satisfactory. Axposed tenotomy is no longer performed. The subcutane- 
ous method is used in our day. The animal is first shod properly. If 
the perforans alone is to be divided, the foot, with the heels pared away, 
should have a shoe with an elongated toe, so as to throw the weight of the 
body upon the posterior parts of the foot. In double tenotomy, to avoid 
the dropping of the fetlock backwards, the orthosomes of Brogniez and of 
Defays, or, better, the immovable bandages (Didot, Delwart), are recom- 
mended. (See Zendinous Wounds.) 
Whether a fore or hind leg is tobe operated, the animal is cast on the 
opposite side, the leg left in the hobble. A rope is placed round the foot, 
another above the knee or 
the hock. The skin is wash- 
ed, shaved, asepsized on the 
middle third of the external 
face of the canon. Two in- 
struments, straight and curv- 
ed tenotomes, are necessary. 
Instead of the straight teno- 
tome, a narrow scalpel or 
bistoury can be used (fig. 77.) 
Placed in front of the knee 
or near the hock, by careful 
exploration of the tendons 
the separation which exists 
between them is readily made 
out; when the. tendons are 
surrounded by indurated tis- 
sue, this separation is not so 
readily made out. On the 
hind leg the middle of the 
canon is the spot of elec- 
Fig. 77.—Kuuckling and phalangeal perios. tion, on the fore leg a trifle 
tosis. (From a photograph.) above it (1 or 2 centimeters.) 
In the first step of the operation, the right hand, holding the straight 
tenotome, is thrust between the tendons uniil the point is felt under the 
