Table 2.
Degenerative status of adjacent discs (above and below) at the final evaluation and compared to the initial status.
| Characteristics | Lower level N (%) |
Upper level N (%) |
|---|---|---|
| Degeneration on last evaluation | ||
| None | 14 (73.7) | 15 (79.0) |
| Doubtful | 0 | 0 |
| Minimal | 3 (15.8) | 3 (15.8) |
| Moderate | 1 (5.3) | 0 |
| Severe | 1 (5.3) | 1 (5.3) |
| Missing | 2 | 2 |
| Evolution | ||
| Absent initially and from last evaluation | 12 (70.6) | 13 (68.4) |
| Present initially and in last evaluation | 5 (29.4) | 2 (10.5) |
| Absent initially and present in last evaluation | 0 | 2 (10.5) |
| Present initially and absent from last evaluation | 0 | 2 (10.5) |
| Missing | 4 | 2 |