Caries from Septic Wounds. 269 



6. 165. Rarefaction of Femur after Compound Fracture, 



— Lower end of a right femur — macerated, to illustrate the 

 above. 



The broken surface is opened out, and some new bone has 

 been developed near. At the back, near the upper end, there 

 are two distinctly punched-out holes, possibly due to absorption 

 by granulations. F. P. C. 397. 



166. Rarefaction of the Tibia after Compound Fracture. 



• — Section of the distal end of a left tibia — macerated, to 

 illustrate the above. 



There has been absorption of the upper end, with develop- 

 ment of new bone on the adjacent surface, This has probably 

 been a case of compound fracture, with prolonged suppuration. 



B. C. I. 5. M. 81. 



6. 167. Rarefaction of the Shaft of a Tibia, with some 

 new Periosteal Growth from some Septic Condition. 



— Right tibia — macerated, illustrating the above. 



Over nearly the whole of the shin surface the bone is 

 rarefied and rough. New bone has been thrown out on the 

 posterior surface, with appearances very suggestive of septic 

 inflammation. The anterior and posterior parts of the articular 

 surface have apparently been attacked. B. C. i. 5. M. QQ. 



6. 168. Rarefaction of the Shaft of the Femur from Sepsis 



after Amputation. — Portion of the shaft of a femur — 

 macerated, illustrating the above. 



Septic inflammation must have followed the amputation. 

 Some periosteal bone has been thrown out for several inches 

 above the lower end. The surface of the bone all over is 

 opened out, evidently from absorption round the blood-vessels. 

 This is a good example of septic rarefactive ostitis, or what 

 may be called a septic form of caries. B..C. i. 5. M. 29. 



