Table 3.
Adjacent disc degeneration in symptomatic and asymptomatic groups based on Pfirrmann classification
| Variable | Symptomatic (n=46) | Asymptomatic (n=24) | p-value |
|---|---|---|---|
| Disc L4–5 | 2.60±1.20 | 1.80±0.80 | 0.030 |
| Grade 1 | 7 (15.2) | 10 (41.7) | |
| Grade 2 | 18 (39.1) | 9 (37.5) | |
| Grade 3 | 15 (32.6) | 5 (20.8) | |
| Grade 4 | 3 (6.5) | 0 | |
| Grade 5 | 3 (6.5) | 0 | |
| Disc L5–S1 | 3.10±1.10 | 2.00±1.00 | 0.046 |
| Grade 1 | 2 (4.3) | 7 (29.2) | |
| Grade 2 | 12 (26.1) | 12 (50.0) | |
| Grade 3 | 15 (32.6) | 2 (8.3) | |
| Grade 4 | 12 (26.1) | 3 (12.5) | |
| Grade 5 | 5 (10.9) | 0 |
Values are presented as mean±standard deviation or number (%).