Fractures of the Femur. 131 



3. 241. Badly united Fracture in the Lower Third of the 

 Shaft. — Right femur — macerated, showing the above. 



The upper fragment is in front and to the inner side of the 

 lower, which is rotated very slightly outwards. The broken 

 ends overlap considerably, and there is a large mass of callus 

 between them. B. C. i. 1. M. 29. 



3. 242. Ununited Fracture of the Shaft.— Portions of the 

 shaft of a femur — with the muscles dissected off and in spirit, 

 to show the above. 



"The bone was twice broken. After the first accident, matters- 

 seeming to go on prosperously, he had risen from bed, and was walking 

 upon crutches, when his crutch slipped from under him, and he broke the 

 bone a second time. It seemed now to be very ill set, for the preparation 

 shows the bone riding, accordingly union by bone did not take place. A 

 joint formed instead, and in this condition he was broughtinto the Middlesex 

 Hospital. I made various attempts, by exciting the extremities of the 

 bone, to produce what has been termed ossific inflammation, but without 

 succeeding. At last, at the earnest request of the patient, the limb was 

 amputated." 



The bones have been in bad position, greatly overlapping, 

 and are now united by apparently fully-formed fibrous tissue. 

 The medullary cavity of each fragment has been closed in by 

 bone, and a spur of bone has grown from the side of the upper 

 fragment. Between this and the lower fragment a false joint 

 (adventitious bursa) has formed. This has been laid open, 

 and a fibrous band crossing it is indicated by a bristle. The 

 closure of the medullary cavity would indicate that the non- 

 union in this case was at least not due to deficient power to form 

 bone. B. C. i. 1. M. 11. 



3. 243. Fracture of the Shaft, followed hy Sarcoma.— 



Section of a femur, soft parts dissected off — in spirit, showing 

 the above. 



The patient, a man aged 45, fell and broke his femur. After it had 

 united, he fell and broke the bone a second time. It was treated as before, 



