Table 3 Comparison of TBL and HBL between BE-LIF and MIS-TLIF

Preoperative HCT (%)

42.10 ± 3.21

41.52 ± 3.09

0.407

patient’s blood volume (PBV) (L)

4.46 ± 0.31

4.35 ± 0.28

0.082

Total blood loss(TBL)(mL)

624.03 ± 80.67

792.01 ± 104.89

< 0.001

intraoperative blood loss(mL)

89.47 ± 21.95

128.52 ± 32.66

< 0.001

postoperative blood loss(mL)

62.36 ± 10.31

88.97 ± 13.31

< 0.001

Hidden blood loss (HBL) (mL)

472.19 ± 64.44

574.51 ± 72.85

< 0.001