Table 2 Patient’s perioperative parameters comparison between unipedicular group and bipedicular group in this study

Operation time (min)

32.01 ± 4.48

42.42 ± 6.01

t = -12.465

 < 0.001

Blood lose (mL)

5.46 ± 1.22

8.73 ± 1.20

t = -17.058

 < 0.001

Hospital stay (days)

4.90 ± 1.46

4.79 ± 1.35

t = 0.482

0.630

Bone cement leakage

19(23.1%)

20(25.6%)

χ² = 0.132

0.716

    vein leakage

6

5

χ² = 0.208

0.648

    Intervertebral leakage

5

4

χ² = 0.219

0.640

    Paravertebral leakage

8

10

χ² = 0.244

0.621