Table 2 Comparisons of VAS and ODI scores before and after operation in patients with LSS
Variables | Preoperative Mean ± S.D. | Postoperative 1 week Mean ± S.D. | Postoperative 3 months Mean ± S.D. | Postoperative 1 year Mean ± S.D. | P |
|---|---|---|---|---|---|
VAS for low back pain | 6.70 ± 1.15 | 3.07 ± 1.09 | 2.90 ± 1.13 | 2.58 ± 1.11 | < 0.001 |
VAS for leg pain | 7.01 ± 0.84 | 2.63 ± 1.23 | 2.44 ± 1.33 | 2.28 ± 1.43 | < 0.001 |
ODI | 46.18 ± 10.11 | 19.29 ± 9.63 | 16.31 ± 9.87 | 14.40 ± 9.59 | < 0.001 |