518 VETERINARY SURGICAL THERAPEUTICS, 
phalanges formed with’ the metacarpus an obtuse angle open outwards ; 
on the internal face of the fetlock there was a vertical wound, 15 
centimeters long, through which the lower extremity of the metacarpus. 
protruded ; the ligaments were torn. Peuch has related a similar case.. 
Luxation of the fetlock may occur spontaneously or without violent. 
effort. Cagny has seen a double luxation of both hind legs which. 
occurred in that way. It was that of a thoroughbred stallion, “ Veston,’”’ 
which, a few days before the accident, presented marked alternate lame- 
ness of both hind legs. Rheumatism was suspected, and treated with. 
morphine, salicylate of soda, sulphate of quinine. One morning the: 
horse was found lying down, the left hind fetlock dislocated. He tried. 
to get up when a bandage was about to be applied on that leg,. 
when the same accident occurred on the other fetlock. At the post- 
mortem, the tendons of the flexors and extensors were found normal ;. 
the articular, synovial and lateral ligaments were lacerated. Another 
example of spontaneous luxation has been: published by Magnin: the 
animal walked on the inferior extremity of his metatarsals. In cases of 
this kind, there is certainly inflammation or previous softening of those- 
lateral ligaments. When the skin is torn, and the articular synovial. 
open, and whether these lesions are due to violent efforts, falls, or occurred. 
as in the cases of Cagny and of Magnin, in general, treatment must be: 
given up. 
Fortunately the alterations are not always so complicated: for ex- 
amples, the cases of Granet, Barrier, Blaise, Smith, Wilhelm, Schellhase. 
With them, the skin was intact, the articular surfaces more or less. 
displaced forwards, backwards, inwards or outwards. In the horse of 
. Barrier, “ the os suffraginis, instead of-joining the metacarpal with an angle: 
of about 145°, was thrown backward; the articular surfaces were no 
longer in apposition, that of the metacarpal was resting on the anterior 
face of the suffraginis; the lowered digital region formed almost a right 
angle with the cannon, and if, in those conditions, standing had been 
possible, it could not have taken place except by the posterior face of 
the phalanges and the heels.” ? 
In the subject of Blaise, “the phalangeal region formed with the can- 
non an obtuse angle, whose opening corresponded to the external side: 
of the leg ; the posterior face had become internal; the foot, following” 
the same rotatory motion, showed its plantar face; on the inner side of 
the leg, and on a level with the small metacarpal, the superior extremity” 
of the suffraginis protruded under the skin.” ? 
Whatever may be the direction of the deviation, if it is not too great, 
* Barrier : Journal des Vétér. Milit., 1870, p. 155. 
2 Blaise : hid., 1873-74, p. 419. 
