156 Injuries of Bone. 



lower fragment has been pushed up. There is mucli irregularity 

 at the tip of the inner malleolus, round the articular margins of 

 both bones, and at the grooves for tendons. 



This must have been a severe case of Pott's fracture, 

 followed by deformity and stiffness. B. C. i. 1. M. 46. c. 



3. 317. United Fracture of the Fibula, from a Case of 



Pott's Fracture. — Left fibula of an old woman — macerated, to 

 show the above. 



The bone has been broken transversely about an inch and a 

 half from its lower end. The whole bone is exceedingly light 

 and fragile, and several from the same old woman have been 

 macerated, to illustrate senile osteo-malacia (see series 6). 



Cx. C. 3224. 

 Presented htj Chakles W. Cathcart, F.R.C.S.E. 



3. 318. Unreduced Pott's Fracture. — Plaster cast of a left foot, 



showing the above. 



The foot is displaced greatly outwards, and the heel is 

 drawn backwards. The foot can have been of little or no use 

 in walking. G. C. 3289. 



Presented by Charles "W. Cathcart, F.R.C.S.E. 



3. 319. Fracture of the Os Calcis. — Left os calcis — macerated, 

 to show the above. 



The patient was a man 60 years of age. A wheel passed over the 

 foot ; gangrene followed, and amputation was performed. The gangrene 

 returned and the man died. 



There is a depression of the compact layer on the outside, 

 with some comminution, but no injury to the bone elsewhere. 



G. C. 3250. 



