Table 1 Characters of renal units and stones
From: Single puncture percutaneous nephrolithomy for management of complex renal stones
Variable | Branched stones (n = 9) | Multiple stones (n = 17) |
|---|---|---|
Pelvicalyceal system: | ||
Normal | 2 | 6 |
Hydronephrotic | 4 | 5 |
Pyelonephriitic | 3 | 5 |
Malrotated | - | 1 |
Previous renal surgery for stones | 3 | 5 |
Radio-opaque stone | 8 | 12 |
Stone burden in cm. | 4.4 – 11 | 2.5 – 6.6 |
Mean (± SD) cm. | 8.06 (± 2.19) | 3.82 (± 1.32) |
Stone distribution: | ||
Pelvic | - | 5 |
Calyceal | - | 2 |
Pelvicalyceal | 9 | 10 |