TENDINOUS LUXATIONS. 308 
had kicked backwards violently, and, in dropping to the ground, had 
struck on the left hip, and nearly fallen. When he got up, it was observed 
that the hock was considerably flexed, nearly touching the ground. On 
the inner face of the tibio-tarsal joint, the hand felt a strong cord, which 
was easily pulled back over the point of the os calcis, allowing the hock 
then to resume its shape and proper position. There was no doubt that 
it was a luxation of the perforatus tendon. Though the reduction was 
simple, all means to hold it in place were useless. The author “bled the 
animal repeatedly to allay the inflammation and the enormous swelling of 
the leg.’’ Forty days after the accident, the animal was able to resume 
his work asa stallion. “At the end of the season, the tarsal arch was 
filled with a thick cord, formed by the dislocated tendon surrounded by 
tissue of new formation ; the animal was able to work, but the hock always 
remained weak.” } 
The patients of Burcls, Drouet, Fourie and Le Calvé had a luxation on 
the outside of the hock. Instead of the motion noted in the preceding 
case during locomotion, the hock remained extended and the foot touched 
the ground. The tendinous cord was easily put back into place, but the 
luxation would return as soon as the hand was taken away. Burck had a» 
leather boot made for his case, but it would not remain in place: he 
then. blistered the hock on both sides. ‘The reduction took place of 
itself after six weeks of rest in the hospital, and the lameness disappeared.” ? 
Another horse recovered in the same way, without return of.the trouble. 
‘Drouet says: “It seems to me rational, before using revulsive medication, 
to secure artificially, by a subcutaneous suture involving the bone and the 
tendon, the calcaneal cap of the tendon over the apex of the os calcis and 
then to immobilize the parts as well as possible.” 3 Our colleague did 
not try the operation ; the patient, being too old, was destroyed. In the. 
horse of Fourie and Le Calvé, the leg was swollen from the foot to the 
hock. A mixture of blister and mercurial ointment was applied, followed 
by another a week later. Two weeks after the accident, the animal walked 
easier, though with difficulty. The flexion was jerky and at the time of 
rest all the inferior part of the leg, from the hock down, rotated from in- 
wards outwards. The animal rested his foot on the toe and on the internal 
quarter. 
To be more beneficial, the treatment should secure the perforatus in good 
position. The suture recommended by Drouet demands a delicate technic 
and may involve serious accidents if the asepsy is not perfect. In case it , 
should be made, it would be necessary to relieve the hock from the carry- 
1 Trélut.—Journ. des Vet. du Midi, 1865, p. 486. 
2 Burck.—Recueil de Med. Vet., 1892, p. 341. 
3 Drouet.—Journ, de Med. Vet. 1892, p. 684. 
20 
