Fractures of the Tibia mid Fihula. 143 



This fracture has probably been compound. Some of the 

 bone at the fractured spot has necrosed, and has been in process 

 of separation. The bone near has been stimulated, and shows 

 a crust of new periosteal bone. F. P. C. 2955. 



Presented by Professor John Thomson. 



3. 277. Compound Fracture of the Tibia and Fibula.— 



UpjDer three-fourths of a left tibia and fibula, with a small 

 portion of the outer malleolus — macerated, to show the above. 



IS'ewly formed cancellous bone fills the lower broken end 

 of the tibia, and periosteal bone has been formed on both bones 

 near the seat of fracture, while the rest of their surfaces shows 

 opening out of the pores for blood-vessels. W. C. G. 12. 



UNITED FEACTURES OF THE TIBIA AND FIBULA. 

 A. Of both bones at the same spot, i.e. by direct violence. 



3. 278. Badly united Fracture of the Tibia and Fibula, 



about the Middle. — Plaster cast of a right tibia and fibula, 

 showing the above. 



The bones are united at an angle directed forwards, and 

 are thickened in their whole extent, but especially at the seat 

 of fracture. G. C. 3331. 



From a Specimen in the Barclay Collection by James Kichaedson. 



3. 279. Badly united Fracture of both Bones— Portion of 

 a right tibia and fibula — macerated, showing the above. 



The fractured bones are united in a common mass. The 

 lower fragment of the fibula is greatly thickened and runs into 

 the upper end of the tibia. With the exception of the upper 

 part of the fibula, the bones are greatly thickened and irregular 

 on the surface, and a shelf of bone on the upper end of the 



