Comparison of Percutaneous Nephrolithotomy and Retrograde Intrarenal Surgery for the Treatment of Lower Calyceal Calculi of 2-3 cm in Patients With Solitary Kidney

For patients with solitary kidney, PCNL achieved a higher 1-session stone-free rate than RIRS in the treatment of lower calyceal calculi within 2-3 cm in diameter. However, RIRS, with less bleeding and shorter postoperative hospital stay, may be an alternative.