PERONEAL TENOTOMY. 12 1 



brachial fascia down to the flexor pedis tendon. Immedi- 

 ately on the anterior border of the tendon insert thetenotome 

 so far that the point of it can be felt on the lateral or outer 

 side through the skin with the left hand. The cutting edge 

 of the knife is then turned against the tendon of the flexor 

 pedis, that is, it is directed backward, the foot is extended 

 by an assistant with the aid of a rope bound around the 

 pastern and looped over the hoof, and the extensor pedis 

 tendon is cut through under light pressure, by the operator 

 pressing downward on the handle of the knife, using the 

 metacarpus or suspensory ligament as a fulcrum upon which 

 the back of the tenotome rests as a lever. A loud crackling 

 as well as the disappearance of resistance by extension shows 

 that the tendon is severed. By keeping as close to the an- 

 terior border of the tendon as possible we can avoid injury 

 to the common digital artery, the internal cutaneous vein, 

 and the internal and external interosseous veins which run 

 between the flexor pedis and the suspensory ligament. 



After the removal of the knife and after seeing that there 

 is a wide space between the ends of the tendon, the foot is 

 unbound from the splint and a bandage applied to the meta- 

 carpus, which rests upon the fetlock joint and remains in 

 position for eight days. Healing of the cutaneous wound 

 by primary union.- 



33. PERONEAL TENOTOMY. 

 PLATE XVIII. 



Object. The relief of Stringhalt. 



Instruments. Razor, scissors, sharp tenotome. 



Technic. On the lateral side of the metatarsus a triangle, 

 d, opening toward the tarsus is formed by the tendons of the 

 extensor pedis longus muscle, /, and the lateral extensor of 

 the foot, <?, which unite on the anterior surface of the middle 

 of the metatarsus. The synovial sheath of the extensor 



