Table 2.

Operating times in general surgery

Authors	2D	3D	Difference (min)	Difference (%)
Velayutham et al. [42]	284	225	− 59	− 20.77
Sahu et al. [43]	54	40	− 14	− 25.93
Currò et al. [12]	60	48	− 12	− 20.00
Bilgen et al. [39]	30	20	− 10	− 33.33
Yang et al. [44]	107	86	− 21	− 19.63
Currò et al. [12]	100	88	− 12	− 12.00
Median value				− 21.94