Impact of Surgical Position on Stone-Free Rates in Retrograde Intrarenal Surgery
Recruiting now · Not applicable
Conditions studied: Stone, Kidney, Stones, Kidney, Stone;Renal
In brief
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.
Key facts
- Study ID
- NCT06809582
- Run by
- Ondokuz Mayıs University
- People needed
- 128
- Starts
- 2025-01-01
- Expected to finish
- 2026-06-01
- Last updated by the study team
- 2025-08-15
Who can join
Age: 18 and older. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- 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
You may not qualify if…
- Severe cardiovascular disease (e.g., heart failure)
- Congenital kidney anomalies (e.g., horseshoe kidney, ectopic kidney)
- Concurrent ureteral stones
- Pregnancy or planning pregnancy
- History of previous kidney surgery on the same side
- Active urinary tract infection (UTI)
- Coagulopathy or use of anticoagulant therapy that cannot be stopped before surgery
Where it is running
- Ondokuz Mayıs University — Samsun, Turkey (Türkiye) (enrolling)
Full record on ClinicalTrials.gov
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