QUESTIONS AND ANSWERS 253 



on the feet, may assist repair. Shortening of the toe and raising of 

 the heels of the shoe will often relieve lameness to such an extent 

 that light work can be performed. In most cases, neurectomy is the 

 only measure that will render the horse serviceable. 



Describe pumiced sole of the foot, giving cause, prognosis and treat- 

 ment. 



Pmniced sole is that condition in which the horny sole in the 

 neighborhood of the toe readily crumbles away and leaves the 

 sensitive tissues more or less exposed. 



Cause : Seen as a complication of laminitis. May follow punc- 

 tured wounds of the foot or bruises of the sole where exudation from 

 the secreting membrane occurs. 



Prognosis: Favorable if due to wounds or bruises with simple 

 exudation and separation of the tissues. If due to laminitis with 

 dropping of the sole, an incurable lameness results. 



Treatment : Provide drainage and apply antiseptic dressings to 

 wounds and bruises. Chronic laminitis calls for special shoeing. 

 A wall-bearing shoe with thin heels and thick toes and a protective 

 dressing over the exposed parts are indicated. 



What is seedy-toe? Give treatment of seedy-toe. 



Seedy-toe is characterized by the separation of the horny wall 

 from the sensitive laminae at the toe and an accumulation of imper- 

 fect horn or horn debris in the space formed. It follows an injury 

 which destroys the sensitive laminse. The modified horn is produced 

 by the imperfectly regenerated secreting structures. Also seen as 

 a complication of laminitis. 



Treatment: Rasp away the wall over the affected area and re- 

 move aU imperfect horn tissue. Apply antiseptic packs and later 

 use a tar dressing. A special shoe to protect the exposed toe may 

 be necessary. 



Give the pathology and the treatment of corns. 



A corn is the result of an injury to the pododerm in the angle 

 between the quarter and the bar. The laminee of the bar and quar- 

 ters and the velvety tissue of the sole may be involved. The primary 

 injury causes hemorrhage between the pododerm and horn. Unless 

 infection enters, the only lesions produced are the blood-stained horn 

 tubules which are exposed by paring away of the horn. This con- 

 dition is called dry corn. Should infection enter, a suppurating 

 condition is produced and the pus may work its way upward and 

 break out between the wall and the coronary band, causing severe 

 lameness (suppurating corn). 



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