THE URINARY ORGANS 



^59 



trite, if of very large size. If, as is not uncommon, it is 

 adherent to the interior, care must be taken to loosen it ver)' 

 gently from its attachments. If a number of small stones 

 are present, they must be- removed with a blunt scoop or 

 forceps. The interior is then carefuUy washed or swabbed 

 out with some trustworthy non-irritant antiseptic (such as 

 boric acid or chinosol), and the edges drawn together with 

 silk sutures of Lembert's pattern (see p. 55). In four cases^ 

 in which we have sewn up wounds of the bladder, Lembert's 



Fig. 165. — A Dog secured for Perineal or Posterior Pubic Lithotrity. 



sutures of silkworm gut were used, but silk is undoubtedly 

 better, as it becomes absorbed in time. Some operators 

 suture through the whole of the coats at once in the ordinary 

 way with interrupted sutures, but it is better that there shall 

 be no foreign body protruding into the interior of the bladder, 

 as it is apt to form a nucleus for future deposit. As a rule, 

 the wound in the bladder heals by first intention, and there 

 is no need to insert a drainage-tube if antiseptic precautions 

 have been rigidly carried out. 



In the cases illustrated in Fig. 163, No. 3 was the only stone present, 

 the patient being a whippet four years old. The operation, a supra- 



' Journal of Comparative Patlwlogy and Therapeutics, \'ol. xii., p. 



17 — 2 



263. 



