Retroperitoneal laparoscopic management of urolithiasis.

Laparoscopic retroperitoneal pyelolithomy (Lap PL) and ureterolithotomy (Lap UL) were performed in 20 and 24 patients, respectively. The average operating time was 61.4 minutes for Lap UL and 80.2 minutes for Lap PL. The conversion rate for Lap PL was 4 (20%) patients, and none of the Lap ULs required conversion. There were no major postoperative complications, except prolonged tube drainage in 2 patients, and the average hospital stay was 3.6 days.