Table 2 Stone Characteristics
Variable | Ultrasound guided PCNL (N = 89) | Fluoroscopy-guided PCNL (N = 112) | p value+ |
|---|---|---|---|
Multiple stone | |||
Yes | 7 (7.87%) | 12 (10.71%) | 0.49 |
No | 82 (92.13%) | 100 (89.29%) | |
Classification of stone | |||
Staghorn | 26 (29.21%) | 26 (23.21%) | 0.34 |
Non-staghorn | 63 (70.79%) | 86 (76.79%) | |
Hydronephrosis | |||
None | 67 (75.28%) | 104 (92.85%) | 0.01* |
Grade I | 1 (1.12%) | 2 (1.79%) | |
Grade II | 0 (0,00%) | 0 (0,00%) | |
Grade III | 15 (16.85%) | 4 (3.57%) | |
Grade IV | 6 (6.75%) | 2 (1.79%) | |
Side of stone | |||
Right | 29 (32.59%) | 49 (43.75%) | 0.16 |
Left | 55 (61.79%) | 54 (48.21%) | |
Both | 5 (5.62%) | 9 (8.04%) | |
Previous stone surgery | |||
Yes | 11 (12.36%) | 13 (11.61%) | 0.87 |
No | 78 (87.64%) | 99 (88.39%) | |
Initial stone burden (mm) | 19.75 ± 8.24 | 18.23 ± 7.43 | 0.70 |