184 PBINCIPLES OF VETEEINARY SUKGERY 



"whicli has been weakened by previous disease, Tlie inflam 

 matory process being rather sluggish, a process closel; 

 resembling physiological bone-growth is observed. It start 

 mainly from the Haversian canals, these becoming narrows 

 and consequently the bone denser and stronger. 



Name examples of ossifying osteitis. 



It is seen in the development of the spavin, in the fina 

 changes of the callus of a fracture. 



Describe fungous osteitis. 



This accompanies specific diseases, such as tuberculosis 

 glanders. Tuberculosis of bones is of hematogenous origin 

 The infected granulations are exuberant, often being of i 

 fungoid nature. Osteomyelitis and caries are always present 



Describe deforming osteitis. 



This represents a chronic inflammatory process, leading 

 to an unnatural form or shape of the bone involved, due tc 

 softening, hypertrophy, etc. 



Give an example of deforming osteitis. 

 The spavin. 



Osteomyelitis. 



What forms of osteomyelitis are to be considered ? 



Ossifying and purulent myelitis. 

 Where is ossifying osteomyelitis seen f 



In fractures. 



When is purulent osteomyelitis seen ? 



In complicated fractures and infectious diseases, as ii 

 tuberculosis, for instance, or when pus-producing bacterii 

 invade the bone marrow. In these two instances it is ol 



