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Comparison of MR arthrography with intraoperative findings at revision hip arthroscopy
| Parameter | Labral tear | Chondral injury | Loose bodies |
|---|---|---|---|
| Sensitivity | 49/60 (82%) | 32/49 (65%) | 4/12 (33%) |
| Specificity | 7/10 (70%) | 17/19 (90%) | 58/58 (100%) |
| PPV | 49/52 (94%) | 32/34 (94%) | 4/4 (100%) |
| NPV | 7/18 (39%) | 17/34 (50%) | 58/66 (88%) |
PPV = positive predictive value; NPV = negative predictive value.
