Table 2.
Pre- and postoperative mean ODI and VAS values of 39 patients with one-level fusions versus 13 patients with multiple-level fusions; standard deviations in parentheses
| Preoperative | 6 months | 12 months | 24 months | Latest | |
|---|---|---|---|---|---|
| ODI one-level (%) | 48.5 (22.8) | 20.3 (16.6) | 26.2 (21.2) | 30.3 (25.2) | 33.3 (24.2) |
| VAS one-level | 7.8 (2.6) | 3.9 (2.3) | 3.6 (2.1) | 4.3 (2.3) | 5.3 (2.5) |
| ODI multiple-level (%) | 55.1 (18.2) | 33.1 (19.8) | 33.7 (22.5) | 31.8 (25.6) | 40 (18.7) |
| VAS multiple-level | 8.2 (2.4) | 4.0 (2.4) | 3.8 (2.0) | 4.8 (2.2) | 5.5 (2.7) |