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Comparison of stone removal rate, case (%).
| Groups | Cases | 1 week after operation | 1 month after operation | 3 months after operation | Lower calyx | Complex kidney stone |
|---|---|---|---|---|---|---|
| FURL | 39 | 27 (69.2) | 30 (76.9) | 33 (84.6) | 24/30 (80.0) | 4/8 (50.0) |
| PCNL | 33 | 19 (57.6) | 20 (60.6) | 21 (63.6) | 14/26 (53.8) | 1/5 (20.0) |
| χ2 | 1.052 | 2.243 | 4.196 | 4.368 | 0.246 | |
| P-value | 0.305 | 0.134 | 0.041 | 0.037 | 0.620 |
FURL, flexible ureteroscope lithotripsy; PCNL, percutaneous nephrolithotomy.
