RESECTION OF THE LATERAL CARTILAGE. 165 



41. RESECTION OF THE LATERAL CARTILAGE. 

 Pl,ATE XXVIII. 



Object. The cure of quittor or necrosis of the cartilage. 



Instruments. Elastic ligature, drawing knife, scissors, 

 razor, hoof rasp, hoof plane, craniotomy or other heavy for- 

 ceps for the removal of the horn, artery forceps, elevator or 

 long bone chisel, double-edged sage Ipiife, curette, needle 

 holder, thread, needles, iodoform ether, iodoform gauze, 

 tampons, absorbent cotton, bandages. 



Technic. For a few hours before the operation place 

 the affected foot in a bath of creolin Solution after having 

 first made a semicircular groove in the horn of the lateral 

 wall and quarter down to the horny lamina, as shown at s 

 in Fig. I, Plate XXVIII. 



The operation is performed upon the recumbent anaes- 

 thetized aniinal, in such a position that the diseased cartilage 

 of the affected foot lies upward. The operating table consti- 

 tutes incomparably the best means of confinement in every re- 

 spect. After the application of the elastic ligature the groove 

 in the horn is deepened with the drawing knife down to the 

 sensitive laminae without injuring them. The groove must be 

 so located that it extends beyond the anterior and posterior 

 borders of the lateral cartilage, remaining a few cm. distant 

 from the bearing surface of the wall and approximately per- 

 pendicular to the surface of the horn wall so that it will form 

 a secure support for the dre.s.sing to be later applied. The 

 hair on the coronary baud is clipped or shaved and the entire 

 foot up to the fetlock joiut thoroughly cleansed with brush, 

 soap, creolin or sublimate solution and 50 per cent, alcohol. 

 The levator or long bone chisel is then inserted beneath the 

 lowest part of the semi-circular piece of horn which has been 

 i.solated, the horn is elevated from the sen.sitive structures 

 .somewhat, grasped with the heavy forceps and carefully loos- 

 ened from the sensitive laminae by drawing upward parallel 



