guiTTOR. 449 



of three to four inches. The perforatus tendon had become elongated. 

 Its fibres were partially ruptured, necrotic, and disintegrated ; the 

 perforans tendon showed similar changes. Only the terminal branches 

 of the suspensory ligament showed change ; they were swollen, in- 

 flamed, infiltrated with serosity and blood, a condition which became 

 more marked towards their extremities. The insertion itself was 

 destroyed, the fibres being softened and degenerated. The surfaces of 

 attachment on the sesamoid bones were rough to the touch. The 

 intersesamoid ligaments were ruptured, and the sesamoid bones thrust 

 to either side of the upper extremity of the first phalanx, causing the 

 enlargement of the fetlock above mentioned. The inferior sesamoid 

 ligaments had only undergone trifling change. The metacarpo-phalan- 

 geal synovial membrane was inflamed, and at points was stained with 

 blood. The articular surfaces were free of injury. The great sesa- 

 moid sheath and the bones showed no change. 



QUITTOR— PARTIAL NECROSIS OF THE ANTERIOR LATERAL 

 LIGAMENT OF THE PEDAL JOINT. 



153. A ten-year-old gelding with quittor, entered hospital October 

 13th, 1897. 



The disease had been in existence for six weeks. During the 

 previous three days the animal was unable to work. 



State on Examination. — The inner surface of the off fore coronet 

 showed a diffuse, slightly sensitive swelling, at the posterior part of 

 which were two small cicatrices : and in front, opposite the anterior 

 portion of the lateral cartilage, a sinus about an inch and a half in 

 depth, discharging an abundance of watery pus. The wall of the hoof 

 was separated along almost the whole of the internal quarter. At rest 

 the limb was extended, and continually lifted and set down with a 

 tapping movement. Even at a walk lameness was very marked. 



Treatment. — The shoe was removed, the horn pared away, and the 

 foot enveloped in moist compresses. Temperature 38'g° C. 



On the 14th the animal was cast, the foot prepared, the horn of the 

 quarter removed, and the classic operation for quittor performed. All 

 the anterior portion of the lateral cartilage was necrotic ; the fibrous 

 layer below was almost entirely granulating. The anterior lateral 

 ligament of the joint was partially necrosed ; the superficial layer was 

 yellowish in colour, and appeared softened and broken down. 



The remainder of the cartilage was removed, together with the 

 necrotic layer of the ligament, and the wound swabbed with tincture of 

 iodine. The parts having been scrupulously cleansed, the deeper 

 tissues were covered with a thick layer of iodoform, and the foot 

 dressed with gauze and cotton wool. 



On rising the horse appeared distinctly easier than before operation, 

 and when returned to its box ate with some appetite. In the afternoon, 

 however, it lay down. Respiration became rapid and moaning, and 

 frequent lancinating pain was shown. In the evening the animal ate 

 some oats and part of its hay. Temperature 40'^ C, respirations 26, 

 pulse 58. 



F F 



