Table 2. A comparison of the intraoperative conditions between the double-reverse traction and conventional traction.

Groups	Preoperative preparation time (min)	Operation time (min)	Length of incision (cm)	Intraoperative bleeding volume (mL)
DRTR	34.8±7.6	87.1±12.2	6.4±0.9	152.6±22.9
TT	56.6±9.3	123.1±15.0	6.8±1.1	146.8±20.7
P value	<0.0001	<0.0001	0.1619	0.3941

Data are presented as the mean ± SD. DRTR, double reverse traction repositor; TT, traction table.