Table 3.
The postoperative MRI assessment of the anterior and inferior labrum
| Overall (N = 37) | RG (n = 6) | NG (n = 31) | p Value | |
|---|---|---|---|---|
| Interval between surgery and assessment, mo | 6.0 ± 1.3 | 6.5 ± 1.0 | 5.9 ± 1.3 | 0.378 |
| aSlope, deg | 25.2 ± 2.8 | 23.4 ± 3.9 | 25.5 ± 2.5 | 0.092 |
| aLGHI | 2.6 ± 0.2 | 2.5 ± 0.2 | 2.7 ± 0.3 | 0.226 |
| T2-weighted anterior labrum morphology | 0.020 | |||
| Grade 0 | 7 | 0 | 7 | |
| Grade I | 19 | 2 | 17 | |
| Grade II | 10 | 3 | 7 | |
| Grade III | 1 | 1 | 0 | |
| iSlope, deg | 26.8 ± 2.9 | 26.7 ± 2.9 | 26.9 ± 3.0 | 0.899 |
| iLGHI | 2.7 ± 0.4 | 2.5 ± 0.3 | 2.7 ± 0.4 | 0.278 |
| T2-weighted inferior labrum morphology | 0.137 | |||
| Grade 0 | 5 | 0 | 5 | |
| Grade I | 26 | 4 | 22 | |
| Grade II | 6 | 2 | 4 | |
| Grade III | 0 | 0 | 0 |
RG: recurrent instability group; NG: no recurrent instability group; aSlope: anterior labral slope; aLGHI: anterior labral glenoid height index; iSlope: inferior labral slope; iLGHI: inferior labral glenoid height index; Grade 0: homogenous structure with normal morphology; Grade I: punctiform or intralabral nodular hypersignal with normal morphology; Grade II: linear hypersignal extended to labrum surface with changed morphology; Grade III: complex hypersignal multiply extended to labrum surface with disrupted morphology