SIDEBONES. 



277 



one side is affected, tlie animal will generally " dish " tlie leg 

 either outwards or inwards, as the case may be, so as to relievo 

 the affected side. 



[ Fig. io8. —Pedal bt)nes with ossified lateral cartilages (sideliiones). 



The pain in cases of sidebone is due to the soft tissues being 

 compressed between the newly formed bone and the hoof. Not 



P'ig. 109. — Pedal bone of near fore foot, with 

 the outer lateral cartilage ossified, and 

 the inner one removed. 



only does the ossified cartilage refuse to accommodate itself to the 

 movements of the neighbouring soft structures ; but it is also 

 larger in size than it was Ijefore the bony change took place. 



GRAVITY. — Sidebones in the hind feet seldom cause lameness ; 

 and in young horses they are much more serious than in mature 



