Table 3. Depicting Per-operative Charecteristics for All Included Studies.

No.	Study	Operative time (min)	Intra-operative blood loss (mL)
1	Hasler et al.6)	97.9	436
2	Baba et al.15)	203.2	504
3	Bouveau et al.18)	NS	NS
4	Horsthemke et al.17)	125	NS
5	Tamaki et al.16)	148	743
6	Thaler et al.20)	First stage – 140 min, time between 1st & 2nd stage – 65.7 days	NS
7	Thaler et al.21)	154.2	NS
8	Ghijselings et al.11)	NS	NS
9	Thaler et al.19)	NS	1,472

NS: not specified.