Table 2 Comparison of Follow-up Outcomes in Group BE-LIF and Group MIS-TLIF

VAS of low-back pain

<0.001

Preoperative

6.26 ± 0.79

6.13 ± 0.76

0.465

Postoperative 3 day

3.60 ± 1.19*

4.63 ± 0.96*

<0.001

1 months

2.65 ± 0.74*

3.33 ± 0.86*

< 0.001

3 months

2.26 ± 0.55*

2.40 ± 0.54*

0.233

12 months

1.31 ± 0.47*

1.40 ± 0.49*

0.388

VAS of leg pain

0.272

Preoperative

5.84 ± 1.34

6.09 ± 1.62

0.457

Postoperative 3 day

1.78 ± 0.74*

1.65 ± 0.91*

0.484

1 months

1.31 ± 0.70*

1.18 ± 0.65*

0.375

3 months

1.05 ± 0.61*

0.88 ± 0.57*

0.211

12 months

0.63 ± 0.48*

0.77 ± 0.67*

0.289

ODI

0.098

Preoperative

58.10 ± 11.92

55.43 ± 9.19

0.256

Postoperative 3 day

26.63 ± 6.97*

29.04 ± 6.13*

0.099

1 months

18.05 ± 3.70*

19.68 ± 3.97*

0.060

3 months

13.39 ± 4.63*

14.27 ± 3.72*

0.345

12 months

10.42 ± 3.81*

9.95 ± 3.03*

0.539

Fusion rate (grade I, II)†

94.7%

95.4%

1.000

Grade I

25

28

Grade II

9

11

Grade III

4

5

Grade IV

0

0

Modified Macnab criteria※

28:9:1:0

30:12:2:0

0.919

(Excellent and good) rate

97.3%

95.4%

1.000