Meta-analysis of retroperitoneal vs transperitoneal laparoscopic and robot-assisted pyeloplasty for the management of pelvi-ureteric junction obstruction.

The evidence suggests that there are no significant differences in success rate, OT and complications between transperitoneal and retroperitoneal LP. Conversion rates are higher with the retroperitoneal approach; however, return to diet occurs faster and drain duration is shorter when compared to the transperitoneal approach.