Table 1.

Comparison of surgical time, blood loss, and skin incision length

	Group 1 (n=33) conventional approach	Group 2 (n=23) minimal-invasive	p value
Surgical time (min)	126.0 (range 79–190)	100.5 (range 47–150)	0.012
Blood loss (ml)	600.0 (range 300–2000)	260.0 (range 100–800)	<0.001
Skin incision length (cm)	31.6 (range 15–50)	12.0 (range 7–24)	<0.001