COMPLICATED CASES OF CORN. 455 



temperature only exceeded normal by a few tenths of a degree. From 

 the 24th some weight was placed on the injured limb. 



On the ist December the wound was half healed. A shoe and 

 dressing were applied. The horse walked easily; at a walk there was 

 only trifling lameness. It left hospital on the 8th December. 



COMPLICATED CASES OF CORN. 



159. A twelve-year-old mare, left in hospital November 2nd, 1897. 

 Had been lame on the off fore-limb for nearly three months. Corns 

 had been found in the feet, and treated by thinning the horn. Lame- 

 ness, at lirst trifling and intermittent, had become intense during the 

 previous week. 



When examined the mare was too lame for work. At rest the off 

 fore-limb was advanced. Lameness was severe even when walking. 

 The foot was very sensitive, and a suppurating corn could be seen in 

 the internal quarter. The heel and posterior half of the quarter were 

 swollen. 



Treatment. — Thinning of the sole, bar, and frog ; exposure of the 

 fistula ; clipping away of the hair of the coronet and pastern ; careful 

 washing of these parts, and of the foot with soap and water ; carbolic 

 baths ; and moist antiseptic application to the foot. 



On the 2nd and 3rd November the dressing was saturated with 

 carbolic solution. No improvement. 



On the 4th the mare was cast for operation. The heel of the hoof 

 was entirely removed for a distance of about two inches; the wall 

 thinned together with the corresponding portion of the sole, and part 

 of the frog. A patch of necrotic lamina; was removed with the knife. 

 A sinuous tract, running obliquely upwards and inwards, opened in the 

 commissure, between the quarter and the reflection of the bar, pene- 

 trating a long distance into the plantar cushion. After laying open the 

 fistula, parallel to the axis of the foot, and excising an elliptical portion 

 of the plantar cushion, a mass of necrotic tissue, the size of a small nut, 

 was discovered, formed by the base of the cartilage and the plantar 

 cushion. 



The necrotic tissues were freely removed with the knife and 

 curette ; the base of the wound was swabbed with tincture of iodine, 

 irrigated with iodine lotion and covered with iodoform, iodoform gauze, 

 and a cotton-wool dressing. 



On rising the animal placed more weight on the diseased limb than 

 before operation. Evening temperature 38*6° C. 



On the 5th weight was placed on the limb, and there was no 

 evidence of stabbing pain. During the following days improvement 

 continued. The temperature was normal. 



On the 13th the dressing was removed. The wound was healing 

 well ; the loss of tissue in the region of the laminae had been repaired, 

 and the wound was covered with horn. The cavity on the plantar 

 surface was granulating throughout. There was little pus. A fresh 

 cotton-wool dressing was applied. 



On the 20th a shoe was applied and a dressing inserted, kept in 



