156 DISEASES OF THE HORSE’S FOOT 
by wounds to the flexor tendons, the alteration in the 
direction of the limb is often so great as to produce 
‘knuckling over’ of the fetlock. This, to a very great 
extent, may be remedied by the use of a shoe with calkins 
and an extended toe-piece (see Fig. 84). 
With this shoe a certain amount of forced exercise is 
ies 
Fic. 84,—Tur SHOE WITH EXTENDED ToE-PIECE AND HIGH 
CALKINS. 
advisable, and at intervals of about two weeks the calkins 
should be somewhat lowered, until the heels are brought as 
close to the ground as is possible. In giving directions for 
this shoe to be made the veterinary surgeon must, when 
referring to the length of the toe-piece, be guided entirely 
by the condition of the case. Ordinarily, a suitable length 
is from 3 to 4 inches. It is necessary also to warn the 
