.'252 PRINCIPLES OP TETERINABT SURGEET 



lation of the blood and lymph, producing a sort of pumping: 

 ■effect by their contractions and relaxations. 



Necrosis of Aponeuroses. 



What are the causes of aponeurotic necrosis f 



Intermuscular and subfaoial purulent cellulitis, usually 

 the result of purulent -wounds of muscles. 



Why are aponeuroses subject to prolonged necrosis ? 



Because their powers of regeneration are very limited; 

 because they are deeply located, rendering drainage diflScult, 

 thus allowing them to be continuously exposed to the irritat- 

 ing action of pus; because they are very firm, renderings 

 decided resistance to exfoliation of the necrotic part; and, 

 finally, because they are extensive, offering a large area to- 

 infection. 

 To what extent are aponeuroses usually necrotic ? 



More commonly the necrotic process is circumscribed, but 

 diffused necrosis is also seen. 



What are the symptoms of aponeurotic necrosis? 

 A fistulous tract leads to the necrotic part. 



Which anatomical regions are common examples of aponeu- 

 rotic necrosis ? 

 The poll (poll evil), fistulous neck and withers, fistulsa^ 

 about the croup. 



Outline the treatment of aponeurotic necrosis ? 



Caustic injections have their advocates, but I do not. 

 advocate them. Lately, protargol has given me very good. 

 results, but above all stands the knife. Of course the knife- 

 shy surgeon will be disappointed. Deep and long incisions, 

 Titter removal of everything which is necrotic, must be the 

 ^ battle cry, with subsequent drainage and antiseptic treatment. 



