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Table 1 Comparison of VAS and ODI scores (±SD)

From: Topping-off surgery vs posterior lumbar interbody fusion for degenerative lumbar disease: a comparative study of clinical efficacy and adjacent segment degeneration

Group

VAS for lower back pain

VAS for leg pain

ODI

Before surgery

3 years after surgery

Before surgery

3 years after surgery

Before surgery

3 years after surgery

Topping-off

6.32 ± 1.74

1.91 ± 0.73

4.78 ± 1.22

1.50 ± 0.61

48.09 ± 9.61

13.65 ± 4.14

PLIF

6.49 ± 1.90

2.14 ± 0.91

5.11 ± 1.48

1.63 ± 0.63

50.54 ± 11.21

14.22 ± 5.03

t

0.385

0.323

0.271

0.308

1.617

0.676

P

> 0.05

> 0.05

> 0.05

> 0.05

> 0.05

> 0.05

  1. P < 0.01, before surgery and at 3 years after surgery