TRAUMATIC DISLOCATIONS 505 



The foot is held one to one and a half feet from the floor, and 

 it can not be drawn further down by manual traction. In 

 one case observed by the author the toe was held at the level 

 of. the hock. The stifle is painful and the patella stands out 

 in bold relief amid a mass of swelling. 



In simple stifle cramp, which the "old school" practi- 

 tioners thought was .dislocation of the patella, the foot is 

 fixed to the floor; here it is fixed above the floor. 



TREATMENT.— A rope is attached to the pastern and 

 the leg is drawn backward with all of the force of five or 

 six men until the operator, standing at the stifle, is able to 

 push the patella over the lip of the trochlea. In one case 

 observed by the author it snapped in unassisted after the. leg 

 had been drawn upon with sufficient force to "straighten 

 out" the femora-tibial angle. To properly execute this 



Fig. 252 — Lever Fixed to Jaw to Effect Reduction of Dislocation of Temporo- 

 Maxillary Articulation. 



maneuver, the horse is placed in a narrow stall where there 

 is ample room behind for the men to work. To prevent the 

 patient from being drawn backward by the traction a rope 

 is passed beneath the tail and tied forward on each side of 

 the manger. Decumbency may be prevented with slings 

 or a rope passed around the body and secured over a ceiling 

 beam. 



When the reposition has been successfully effected the 

 foot falls to the floor and walking becomes possible. A pro- 

 nounced lameness, however, always follows this injury, and 

 this must be met by fometations, liniments, and later by 

 blisters. A protracted rest will be found necessary on ac- 

 count of the continuation of a disabling claudication. 



3. Dislocation of the Temporo-maxillary Articulation of 

 Dogs occurs occasionally. It is said to occur from yawning, 



