Experimental study of synadelpho-ureterostomy (transuretero-ureterostomy).

An experimental study with synadelpho-ureterostomy (transuretero-ureterostomy) was performed in 25 dogs. The conclusions reached are: (1) side-to-side anastomosis is to be preferred to end-to-side suture; (2) risk of disruption is very slight even where an unexpected obstruction is encountered (test with induced cellophanic periureteritis), and (3) segmental replacement of the lumbo-iliac ureter may apparently be achieved by means of inverted synadelpho-ureterostomy (the damaged ureter is the recipient ureter). This replacement requires a double synadelphostomy, but in our study the normal transposed ureter suffered no harm despite the presence of previous infection and ureteral dilatation.