Distribution of signal-intensity grades and annular tears on initial MR imaging
| Signal-Intensity Grade | ||||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | |
| Disks with no annular tears (n = 73) | 45 (61.64%) | 25 (34.25%) | 2 (2.74%) | 1 (1.37%) | 0 (0.00%) | 0 (0.00%) |
| Disks with annular tears (n = 203) | 21 (10.34%) | 61 (30.05%) | 44 (21.67%) | 38 (18.72%) | 37 (18.23%) | 2 (0.99%) |
| 66 | 86 | 46 | 39 | 37 | 2 | |