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The development of Modic changes at 14 months follow-up in relation to the disc contour at baseline, in the 166 patients with MRI at follow-up
| Disc contour at baseline (n = 166) | Distribution (%) | Modic changes at follow-up (%) |
|---|---|---|
| Normal disc | 14 (8.4) | 0 (0) |
| Bulge | 30 (18.1) | 15 (50) |
| Focal protrusions | 62 (37.3) | 35 (56) |
| Broad based protrusions | 13 (7.8) | 4 (31) |
| Extrusions | 39 (23.5) | 22 (56) |
| Sequestrations | 8 (4.8) | 5 (63) |
