PoWs Fracture. 155 



vascular, covered with soft downy granulations, and evidently in the 

 progress towards re-union." 



The bone has given way irregularly, and has been some- 

 what comminuted. Some new periosteal bone is seen on the 

 lower end of the upper fragment. G-- C. 1098. 



Presented by Sir Geokge Ballingall. 



3. 315. Severe Form of Pott's Fracture— Eight foot and 



greater part of the leg, with the skin removed, except round 

 the inner malleolus, where the bone projected after sloughing. 

 The muscles are dissected, and the specimen is mounted m 



spirit to illustrate the above. 



A. B., aged 35, while intoxicated, slipped on the ice and fell, on 

 12th January 1837. He attempted to walk at first, but being unable to 

 do so was afterwards driven home. Next day the fracture was reduced. 

 In twenty- four hours afterwards great swelling came on, "the skin 

 presenting a dark blush and numerous large dark-coloured phylctenaj." 

 The splints were removed and leeches were applied. Eight hours after- 

 wards the displacement was renewed by an involuntary muscular movement. 

 The redness extended to the thigh, and over the inner malleolus a elough 

 formed 3 x 2^ inches. On the 21st January an attack of delirium tremens 

 came on and"lasted for three days, during which the leg was much tossed 

 about. Eventually the ankle-joint was opened into, and an abscess formed 

 on the outer side. On the 1st of February the limb was amputated below 

 the knee and the patient did well. 



There is a fracture of the fibula about two inches above the 

 malleolus, also rupture of the internal lateral ligament, and 

 dislocation of the whole foot outwards. A piece of cane 

 indicates how the ankle-joint was opened into. G. C. 1975. 

 Presented by Sir George Ballingall, 1837. 



3. 316. Pott's Fracture, with Stiffness of the Ankle.— 



Lower half of a right tibia and fibula— macerated, showing the 



above. 



"The joint upon dissection exhibited marks of former injury and 

 disease, being stiff, and the ligaments deprived of their natural structure. 

 The muscles on the back of the leg were reduced almost to common cellular 

 texture." 



The outer malleolus has been fractured obliquely, and the 



