FEACTUEES. 



219 



companied by suppuration, or the union by the second intention, 

 a process so familiar in the repair of the soft structures by 

 granulation. 



Considering the process in its simplest form, in a case in which 

 it advances without interruption or complication to a favorable 

 result, it may probably be correctly described in this wise : 



On the occurrence of the injury an effusion of blood takes 

 place between the ends of the bone. The coagulation of the fluid soon 

 follows, and this, after a few days, undergoes absorption. There 

 is then an excess of inflammation in the surrounding structure, which 

 soon spreads to the bony tissue, when a true ostitis is established, 

 and the compact tissue of the bone becomes the seat of a new 

 vascular organization, and of a certain exudation of plastic lymph, 



FlO. 253.— Fracture of ttie Common Bone, with Callus. 



