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Tumor necrosis factor-α mRNA expression in the various groups.
| Group | No. | Absorbance (mean ± SD) | F-value | P-value |
|---|---|---|---|---|
| Control group | 10 | 0.1788±0.0051 | 1,512.0 | <0.01 |
| Annulus fibrosus undisrupted group | 22 | 0.4858±0.0292a,b | ||
| Annulus fibrosus disrupted group | 18 | 0.7263±0.0396a |
P<0.01 vs. the control group
P<0.01 vs. the annulus fibrosus fracture group. SD, standard deviation.
