OPERATIONS UPON FIBROUS TISSUES. 327 



pleted through a small incision made over the tendon, a Httle be- 

 low the hock, and near its junction with the principal extensor, 

 about one inch of the tendon is removed. Sometimes the action of 

 springhalt ceases at once, when the animal is allowed to rise to his 

 feet. Other cases require a few days for the completion of the 

 cure. The simple operation has proved satisfactory in our hands 

 in two cases. 



Tenotomy in Birds. 

 The operation is performed in this instance with the object of 

 preventing the animals from flying, and consists in the section of 

 the tendons of the extensor muscles of the carpus and phalanges. 

 The bird is held by an assistant, vdth its wing extended, and a 

 few feathers are pulled out from each side of the carpal joint, as 

 well as in front of the radius, to expose the skin, through which 

 the extensor tendons, two in number, are readily seen. A small 

 incision being made through the sHn, the tendon is raised with 

 forceps, and a portion of it amputated, the operation being re- 

 peated on the other side of the wing upon the extensor tendons 

 of the digits, between the radius and the cubitus. The treatment 

 is appHed to both wings ; it is without hemorrhage, and the 

 wounds heal in two or three days. 



