Calculus formation in renal transplant patients

Of 149 renal transplants performed between May 1965 and December 1980 a stapled ureteroureterostomy was done in 112 (75 per cent) using a commercially available stapling device. Calculus developed in 7 patients (6.3 per cent) in whom this technique was used, with the interval between transplantation and calculus formation being 13 months to 6 years. We conclude that the stapled ureteroureterostomy should be reserved for special instances, such as a short donor ureter or when the correction of urological complications demands a rapid ureteroureterostomy.