364 DISEASES OF THE HORSE’S FOOT 
until the whole of the diseased portion is removed, and a 
healthy surface is left. After-dressing must then be carried 
out as in other cases. 
The treatment of ossified cartilage will be found under 
treatment of side-bones, and the methods of dealing with 
penetrated articulation and purulent arthritis are treated 
of in Chapter XII. 
Surgical Shoeing in Quittor.—In the case of simple or 
cutaneous quittor, no alteration in the shoeing is necessary. 
When the condition becomes sub-horny, however, and 
particularly when it is situated in the region of the quarters, 
ease is afforded to the diseased parts by removing the 
bearing of the shoe in that position. 
Should there be no dependent opening at the sole, 
then the best shoe for the purpose is an ordinary bar 
shoe (Fig. 68), with the bearing eased under the affected 
quarter. 
If, however, there is a dependent orifice, or one is ex- 
pected, then it will be necessary either to leave the animal 
unshod or to provide him with a shoe that admits of dressing 
the lesion. In the latter case the most suitable shoe will 
be found to be either a three-quarter shoe (Fig. 102) or a 
three-quarter bar shoe (Fig. 103). Many operators, how- 
ever, keep the animal unshod. We must say ourselves 
that we consider a shoe useful after either of the operations 
for removal of the cartilage, if only to assist in maintaining 
the bandages and dressings in position. 
In this case a very useful shoe will be the three-quarter 
bar shoe. With a little manipulation the bandages are 
easily run under the bar portion of the shoe, and a few of 
their turns every now and again wrapped round the bar in 
order to keep the whole firmly in position. 
In connection with tendinous quittor, when septic matter 
has gained the sheath of the flexor tendons, there is, for a 
long time after healing of the fistula, a marked tendency 
for the animal to go on his toe. To a large extent we 
judge this to be due to slight adhesions between the two 
tendons brought about by the growth of inflammatory 
