Table 2.
Comparison of clinical outcome scores divided by group. Statistical analysis between the two groups by repeated measures ANOVA (VAS: Visual Analog Scale; ODI: Oswestry Disability Index; ∗p value < 0.05).
| Variables | Total | Group A | Group B | p value | |
|---|---|---|---|---|---|
| VAS leg∗ | Preop | 7.8 ± 0.7 | 7.9 ± 0.6 | 7.7 ± 0.8 | 0.007 |
| Postop 2 wks | 3.1 ± 1.4 | 3.6 ± 1.2 | 2.3 ± 1.3 | ||
| Postop 2 mo | 2.1 ± 1.0 | 2.4 ± 1.0 | 1.7 ± 1.0 | ||
| Final | 1.3 ± 0.8 | 1.5 ± 0.6 | 1.0 ± 0.9 | ||
|
| |||||
| VAS back | Preop | 6.0 ± 1.1 | 6.2 ± 1.3 | 5.7 ± 0.9 | 0.637 |
| Postop 2 wks | 3.2 ± 0.9 | 3.3 ± 0.9 | 3.0 ± 0.9 | ||
| Postop 2 mo | 2.5 ± 0.9 | 2.5 ± 0.9 | 2.4 ± 0.9 | ||
| Final | 1.7 ± 0.8 | 1.8 ± 0.8 | 1.4 ± 0.6 | ||
|
| |||||
| ODI | Preop | 65.0 ± 7.6 | 63.6 ± 5.8 | 62.6 ± 8.4 | 0.358 |
| Postop 2 wks | 29.2 ± 10.6 | 28.9 ± 8.4 | 26.3 ± 10.8 | ||
| Postop 2 mo | 22.2 ± 9.7 | 22.6 ± 9.3 | 20.4 ± 7.4 | ||
| Final | 16.1 ± 8.9 | 14.9 ± 9.0 | 13.0 ± 6.6 | ||