About this trial
The goal of this clinical trial is to determine whether the surgical position during retrograde intrarenal surgery (RIRS) affects stone-free rates in adults with kidney stones. The main questions it aims to answer are:
* Does the modified lithotomy position result in a higher stone-free rate compared to the standard lithotomy position? * Are there differences in complication rates between the two surgical positions?
Researchers will compare patients undergoing RIRS in the standard lithotomy position to those in the modified lithotomy position (30-degree Trendelenburg with elevated surgical side) to assess its impact on stone clearance and surgical outcomes.
Participants will:
* Be randomly assigned to one of two surgical positions * Undergo RIRS with standard surgical procedures * Have follow-up imaging to assess stone clearance after surgery
This study aims to improve surgical techniques and patient outcomes in kidney stone treatment.
Eligibility criteria
Qualifiers
Presence of single or multiple kidney stones, with the largest stone ≤2 cm
Age ≥18 years
Provided written informed consent to participate in the study
Indicated for retrograde intrarenal surgery (RIRS) as a treatment approach
Disqualifiers
Severe cardiovascular disease (e.g., heart failure)
Congenital kidney anomalies (e.g., horseshoe kidney, ectopic kidney)
Concurrent ureteral stones
Pregnancy or planning pregnancy
Trial design
Treatments tested in this trial
- The T-Tilt position