RESECTION OF THE LATERAL CARTILAGE. 185 



43. RESECTION OF THE IvA.TERA.1, CARTIt^AGE. 



The Bayer Qoittor Operation 



Pr,ATE XXXIII. 



Object. The cure of quittor or necrosis of the lateral 

 cartilage. 



Instrurnents. 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 knife, 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 rasped the diseased quarter lightly and made a semicir- 

 cular groove in the horn of the lateral wall and quarter 

 down to the horny lamina, as shown at i- in Fig. i, Plate 

 XXXIII. It is essential to not materially thin the horn on 

 the quarter with the rasp since by weakening it, it yields 

 and breaks and can not be properly detached from the 

 sensitive laminae. 



The operation is performed upon the recumbent, anaes- 

 thetized animal, 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 

 respect. After the applicat^ion of the elastic ligature the 

 groove in the horn is deepened with the '' awing knife 

 down to the sensitive laminae without injurii^g them. The 

 groove must be so located that it extends beyond the anterior 

 and posterior borders of the lateral cartilage, and downwards 

 to within i or 2 cm. of the margin of the os pedis and ap- 

 proximately perpendicular to the surface of the horn wall 

 so that it will form a secure support for the dressing to be 

 later applied. The hair on the coronary band is clipped or 

 shaved and the entire foot up to the fetlock joint thoroughly 

 cleansed. with brush, soap, creolin or sublimate solution and 



