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Overall outcomes, stone free rate, complication, retreatment rate
| US (n = 209) | FS (n = 216) | p value | |
|---|---|---|---|
| Stone free rate (%) | 91 (43.5) | 61 (28.2) | < 0.001 |
| Disintegrate rate (%) | 179 (85.6) | 139 (64.3) | < 0.001 |
| Retreatment rate (%) | 31 (14.8) | 77 (35.6) | < 0.001 |
| Complication rate (%) | 4 (1.9) | 13 (6.0) | 0.031 |
