Table 2.

Stone characteristics and operative details of PCNL

Variables	Mini-PCNL	Standard-PCNL
Number of cases	n = 40	n = 40
Stone size	2–4 cm	2–4 cm
Single Stone/ multi-calyceal Single stone Big stone& Multiple calyceal Patient positioning Localization method: Triangulation guided with fluoroscopy and pre-op CT	22 18 Supine 40	19 21 Supine 40
Puncture site Single puncture: lower posterior calyx Second puncture: middle calyx	38 2	37 3
Nephroscope size	12	28
Stone disintegration equipment: Holmium Laser & Pneumatic	40	40
Perforation & management	1 Double J insertion	3 Double J insertion
Nephrostomy tube insertion	40	40
Intra-operative bleeding	0	1
Operation time -minutes(Mean)	95.0	72.1