SHOEING HOESES THAT 'KNUCKLE OVER. 



339 



3. Special Shoes for Houses Knuckled Over at 

 THE Coronet or Fetlock. 



' Knuckling ' at the coronet or fetlock is produced by 

 shortening of the flexor tendons or by bony growths around 

 the joints ; the foot, from the fetlock downwards, takes a 

 perpendicular or nearly perpendicular course, so that the animal 

 treads on the toe alone. This condition can sometimes be modi- 

 fied, though never cured by shoeing. Sufficient may be done, 



Fig. 329.— Shoe for 'knuckling over.' a, bone deposit 

 around the coronet ; b, flattened end of the shoe, 

 which is kept from touching the wall by the leather 

 disc, c. 



1*'IG. 330.— Special shoe for ' knuck- 

 ling ' associated with obliteration 

 of the coronet joint. 



however, to permit of the animal continuing for a long time at 

 work. The shoes should be provided with heels which just 

 touch the ground when the animal stands on all four feet, but 

 in aggravated cases this is not sufficient, and to assist in move- 

 ment it becomes necessary to lengthen the toe of the shoe. 

 The exact extent and form of this prolongation cannot be 

 given, as they must necessarily vary in each case. 



Such shoes have the disadvantage of being torn off occasion- 



