224 



DISEASES OF THE F]^:ET. 



need no further treatiueiit beyond allowino tlie corn to grow down, 

 ^md keeping- pressure off the jjart. 



The bar shoe shown in Fig. 75, is excellent for a case in ■.vnich 

 thei'e is a corn botli on the inside and on the outside of the foot. 



Quittor (Fistula at the Coronet). 



DEFINITION, NATURE, AND SYIMPTOMS.— A qmttor is an 

 abscess consisting of one or more canals which open or tend to 

 open at tlie coronet and extend between the wall of the hoof and 

 pedal bone. It appears as a hard, hot, and painful swelling on 

 the coronet, when that part is the seat of tlie exciting injury. If 

 the cause has been a prick or suppurating corn, it will generally 

 first show its presence by a moist condition of the skin of tliat 



ti;^. 74. — Thi"ee-(]uarter shitc. 



pint of the cor(niet tliroug'h which it seeks an opening. As a ride, 

 a (juittor suppurates slowly, and is more painful during its early 

 Ihan its later stages. Its healing is often delayed by the presence 

 in it of a. diseased ijortion of the lateral cartilage of that side, of 

 diseased or dead bone, or of dead fibrous tissue; and by the walls 

 of the sinus, from their proximity to horn-secreting membranes, 

 becoming hardened, in which case they will have to be destroyed 

 b\' caustics or the liot iron. 



VAHIETIES AND CAUSES.— Quittors may originate from (1) 

 injury of the coronet, as from " treads," blows, frost-bite, oi' 

 aggravated sandcrack ; from (2) injury of the sensitive sole, as 

 in suppurating corns, in which the pus follows the line of least 

 resistance to the coronet; and from (3) hurt inflicted on sensitive 

 structures between the sole and the coronet, as in pricks in 

 shoeing. Wlien tlie coronet has been the seat of injury in tlie 

 first instance, tlie resulting pus lodges behind the wall of the 



