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Table 2 Comparison of preoperative and postoperative JOA total scores of the two groups of patients x ¯ ± s

From: MRI analysis of the ISOBAR TTL internal fixation system for the dynamic fixation of intervertebral discs: a comparison with rigid internal fixation

JOA

Preoperative score

Score 6 months after operation

Score 12 months after operation

Score 24 months after operation

ISOBAR TTL

9.45 ± 2.19

18.75 ± 2.56*

22.82 ± 3.07*

26.17 ± 3.67*

PLIF

10.94 ± 2.47

16.33 ± 1.86*

20.75 ± 2.56*

22.46 ± 3.97*

P

>0.05

>0.05

>0.05

>0.05

  1. Compared with preoperative, *P < 0.05.