| Stone free Intervention | Yes | Non | Percentage “Stone free” |
| PCNL (n = 94) | 84 | 10 | 89.36% |
| URS (n = 95) | 89 | 6 | 93.68% |
| Nephrolithotomy (n = 3) | 3 | 0 | 100 % |
| Pyelolithotomy (n = 6) | 6 | 0 | 100% |
| Ureterolithotomy (n = 3) | 3 | 0 | 100% |
| Total (201) | 185 | 16 | 92.04% |