LAMENESS AND DISEASES, ETC. 



139 



inevitable. Other organs 

 are invaded, the parts af- 

 fected become useless and 

 the animal either becomes 

 an incurable cripple or is 

 soon relieved by death. 



This illustration gives 

 a correct impression of 

 the ravages of laminitis, 

 when its processes con- 

 tinue to the chronic stage, 

 whereby the joints, ten- 

 dons and other structures 

 of the foot are alike in- 

 volved and their functions 

 impaired. The disease 

 has destroyed the laminal 

 connections, a forced sep- 

 aration of the parts has cannon bone. G, Horny sole. H, Plantar 

 turned or dished the hoof, 

 and depressed the coffin- 

 bone upon the sole, which 

 has thus become weak, 

 thin, and bulged or drop- 

 ped downward. The space between the bone and hoof being 

 filled with a fungous deposit resembling honey-comb. 



In dressing a foot of the kind shown in Fig. 34, it is first 

 necessary to foreshorten the toe as much as can be safely done 

 without injury, by rasping around the front and sides and tak- 

 ing out the " dish," and restoring the hoof to its natural shape 

 as far as possible. In feet of this kind, the sole is thin and weak, 

 hence care must be taken that it is not cut or pared in any 

 way around the point of the frog. When leveling the wall for 



the shoe, commence at the heels and lower both sides as much 

 10 



Fig. 34. median section of a " found- 

 ered " FOOT, showing the SE'-'ERE EFFECTS 

 OF CHRONIC LAMINITIS. 



A, Coffin- or pedal-bone. B, Navicular 

 bone. C, Lower pastern. D, Upper pas- 

 tern bone. E, Sesamoid. F, Lower end of 



cushion. K, Velvety tissue or sensitive 

 sole. M, "Wall, dished or turned up toe.. 

 N, Laminal tissue — the seat of laminitis. 

 O, Fungous growth. P, Extensor tendon. 

 R, Flexor perforatus. S, Flexor perforans. 



