Table 2 Predictive ability of displacement to discriminate intact and disrupted articular surface
Cutoff | Accuracy | Sensitivity | Specificity | PPV | NPV |
|---|---|---|---|---|---|
Displacement | |||||
≥ 1.5 | 31.94 | 100 | 12.5 | 24.6 | 100 |
≥ 2 | 45.8 | 75 | 37.5 | 25.5 | 84 |
≥ 2.5 | 61.1 | 68.8 | 58.9 | 32.3 | 86.8 |
≥ 3 | 62.5 | 43.8 | 67.9 | 28 | 80.9 |
≥ 3.5 | 72.2 | 43.8 | 80.4 | 38.9 | 83.3 |