362 



VETERINARY SURGICAL OPERATIONS 



harness, the hind legs well parted, the hind quarters elevated 

 and general anaesthesia is the essential restraint for the ope- 

 ration." 



INSTRUMENTS, ETC.— 



1. Castrating instruments. 



2. Large curved needle and braided silk. 



3. Long probe-pointed bistoury. 



4. Small trocar and canula. 



5. Several haemostatic forceps. 

 ANTISEPSIS. — The antisepsis begins with a thorough 



washing of the inguinal region after the patient is rolled into 



Fig. 178— Scrotal Enterocele in a Calf. 



position. The scrotum is washed. with soap and water and 

 rinsed with mercuric chloride solution 1-500. The legs and 

 adjacent parts of the body should be moistened to prevent 

 hairs and dirt from flying upon the wound. The needle, emas- 

 culator and thread are sterilized by boiling or by strong chem- 

 ical disinfectants. Under no circumstances should the ster- 

 ilization of these be neglected, as asepsis of the tissues they 

 touch is essential to the success of the operation. 



TECHNIQUE.— First Step.— Incision of the Scrotum 

 and Isolation of the Sac. — An incision about six inches long 

 is drawn across the scrotum parallel to the median raphoe 

 over the most prominent part of the sac, but through the 



