Table 3.
Comparisons of Clinical and Radiological Parameters Preoperatively and Postoperatively
| Parameters | Preoperatively | 1 month postoperatively | Final follow-up | p value |
|---|---|---|---|---|
| VASback | 7.3 ± 2.1 | 1.8 ± 0.9 | 2.2 ± 1.5 | < 0.001a |
| VASleg | 6.8 ± 1.9 | 1.2 ± 0.6 | 1.4 ± 1.1 | < 0.001a |
| ODI (%) | 63.1 ± 21.3 | 20.4 ± 9.1 | 15.6 ± 6.8 | < 0.001a |
| SF-36(%) | 44.3 ± 16.7 | 65.7 ± 17.4 | 71.3 ± 15.8 | < 0.001a |
| SP (%) | 18.31 ± 9.38 | 5.44 ± 2.66 | 6.39 ± 2.78 | < 0.001a |
| SA (°) | 5.89 ± 4.87 | 9.47 ± 4.08 | 9.18 ± 4.33 | < 0.001a |
| LL (°) | 44.06 ± 12.69 | 45.53 ± 11.16 | 44. 83 ± 11.24 | 0.1573 |
| LLSS (°) | 45.47 ± 14.45 | 46.07 ± 13.32 | 45. 65 ± 13.89 | 0.6738 |
Data are presented as the mean ± SD. VASback, visual analog scale for back pain; VASleg, visual analog scale for leg pain; ODI, Oswestry Disability Index; SF-36, 36-Item Short Form Health Survey; SP, slip percentage; SA, slip angle, LL, lumbar lordosis; LLSS, lumbar lordosis in patients with single segment fused. a means preoperative data was different from the data at 1 month postoperatively