Table 3.
Comparison of VAS and ODI before and after VA.
| Mean ± SD (range) | 95% CI | P value | |
|---|---|---|---|
| VAS (0–10), (n = 36) | |||
| Paired 1 | 7.19 ± 0.79 (6–9) | 3.547–4.008 | <0.001 |
| 3.42 ± 0.69 (2–5) | |||
| Paired 2 | 3.42 ± 0.69 (2–5) | 1.413–2.031 | <0.001 |
| 1.69 ± 0.79 (0–3) | |||
|
| |||
| ODI (0–100), (n = 36) | |||
| Paired 1 | 76.78 ± 5.09 (64–88) | 57.331–61.447 | <0.001 |
| 17.39 ± 4.99 (8–28) | |||
| Paired 2 | 17.39 ± 4.99 (8–28) | 3.660–7.007 | <0.001 |
| 12.06 ± 4.18 (2–20) | |||
Note: paired sample t-test. Paired 1, preoperation was paired with the 2nd day postoperation. Paired 2 and 2nd day postoperation were paired with the last follow-up.