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The sensitivity, specificity, accuracy, positive predictive value, negative predictive value of MRI in detecting cartilage injuries
| Outerbridge Grade | Sensitivity (%) | Specificity (%) | Accuracy (%) | PPV (%) | NPV (%) |
|---|---|---|---|---|---|
| 1 | 12.5 | 96.2 | 91.3 | 16.7 | 94.7 |
| 2 | 42.1 | 96.6 | 89.1 | 66.7 | 91.3 |
| 3 | 50.0 | 96.9 | 93.5 | 55.6 | 96.1 |
| 4 | 87.5 | 94.6 | 94.2 | 50.0 | 99.2 |
| Total | 46.7 | 90.3 | 76.1 | 70.0 | 77.8 |
