Effect of Surgical Position on Kidney Stone Clearance in Retrograde Intrarenal Surgery A Randomized Trial Comparing Standard and Modified Lithotomy Positions

What this Trial Is About

Researchers are evaluating whether the surgical position during retrograde intrarenal surgery RIRS affects how completely kidney stones can be removed in adults. The study compares two positions the standard lithotomy position and a modified lithotomy position called the T-Tilt position. This research aims to find out if the T-Tilt position results in higher stone-free rates and fewer complications after surgery. Participants will be randomly assigned to receive RIRS in either the standard lithotomy position or the T-Tilt position. The T-Tilt position involves placing the patient in a 30-degree head-down tilt Trendelenburg with the surgical side elevated at 30 degrees to help remove stone fragments more effectively. Both groups will undergo standard surgical procedures during the operation. Throughout the study, participants will have follow-up imaging 6 weeks after surgery to measure stone clearance. Researchers will also monitor complication rates within 30 days after surgery. The trial uses random assignment and triple blinding to compare outcomes and improve kidney stone treatment methods. The study starts in January 2025 and runs until June 2026.

Impact of Surgical Position on Stone-Free Rates in Retrograde Intrarenal Surgery