138 Injuries of Bone. 



the femur — injected and in spirit. The soft parts are cleaned 

 off. 



There is an oblique fracture extending from before back- 

 Avards through the upper part of the shaft of the tibia, and a 

 split has extended upwards through the outer tuberosity into the 

 articular surface. The knee-joint shoAvs signs of an early stage 

 of arthritis deformans. F. P. C. 2966. 



3. 262. Comminuted and Impacted Fracture of the 

 Tibia, involving- the Knee-joint — comparatively 



recent. — Upper end of a right tibia and fibula — macerated, 

 showing the above, which resembles the previous specimen. 



The patient died of erysipelas six weeks after the accident. 



The outer tuberosity has apparently been forced down- 

 wards, and has been partly detached from the rest of the bone. 

 The shaft has given way obliquely from without downwards 

 and inwards at the level of the tubercle. The lower fragment 

 has evidently been forced upAvards, for several pieces of bone are 

 embedded in the upper fragment behind, while on the outer 

 side of both fragments small pieces of bone have been everted. 

 These injuries seem as if they might have been produced either 

 by a fall on to the foot with the leg extended and the main 

 pressure directed upon the outer side of the knee-joint, or by 

 a severe Avrench tending to bend the knee-joint iuAvards, i.e. as 

 if to produce knock-knee. G. C. 175. 



Frcsented by Professor JoHX Turner. 



3. 263. Recent Comminuted Fracture of the Tibia and 



Fibula. — LoAver portions of a left tibia and fibula — macerated, 

 shoAving the above, Avith the fragments Avired together. 



"The injury was compound. The knee-joint was in this case pre- 

 served to the patient, although the fracture iiivoh'ed nearly the whole of 

 the tibia ; indeed, the fibula was entirely removed." 



The bones have been severely comminuted. 



G. C. 1129. 



Presented by James Pitcairn, F.R.C.S.E. 



