Prone PCNL N = 18 | Supine PCNL N = 20 | P value | |
---|---|---|---|
Stone side, no (%) | |||
Right | 11 (61.1) | 10 (50.0) | 0.49 |
Left | 7 (38.9) | 10 (50.0) | |
Stone size (mm) | 20.3 ± 2.07 | 20.3 ± 1.7 | 0.9 |
Skin-to-stone distance (mm) | 94.0 ± 16.22 | 91.7 ± 25.23 | 0.74 |
Body wall thickness (mm) | 62.11 ± 12.99 | 59.75 ± 12.39 | 0.56 |
Angle between upper and lower calyceal accesses | 89.67 ± 14.56 | 130.2 ± 23.46 | 0.001** |