Mini-percutaneous nephrolithotomy versus retrograde intrarenal surgery for the treatment of 10-20 mm lower pole renal stones: a systematic review and meta-analysis.

Our analysis showed that both procedures are safe for treatment of 10-20 mm lower pole renal stones with similar complication rates, operative times, fluoroscopy times and length of hospital stay, but mini-PCNL was significantly superior in effectiveness with a higher success rate. Based on these results, mini-PCNL may be included in the guidelines as a safe and effective alternative treatment for 10-20 mm lower pole stones.