Research Article
Diagnostic Accuracy of Lever Sign Test in Acute, Chronic, and Postreconstructive ACL Injuries
Table 2
The effectiveness of 4 physical examination tests in acute and chronic (preanaesthesia) period.
| ā | MR Rupture | Sensitivity | PPV | Specificity | NPV | Accuracy | Kappa | p | (-) | (+) |
| Lachman Acute | (-) | 10 | 12 | 80.6% | 89.3% | 62.5% | 45.5% | 76.9% | 0.379 | 0.001 | (+) | 6 | 50 |
| Anterior-Drawer Acute | (-) | 11 | 14 | 77.4% | 90.6% | 68.8% | 44.0% | 75.6% | 0.382 | 0.001 | (+) | 5 | 48 |
| Pivot-Shift Acute | (-) | 15 | 30 | 51.6% | 97.0% | 93.8% | 33.3% | 60.3% | 0.271 | 0.001 | (+) | 1 | 32 |
| Lever Acute | (-) | 15 | 5 | 91.9% | 98.3% | 93.8% | 75.0% | 92.3% | 0.784 | <0.001 | (+) | 1 | 57 |
| Lachman Preanesthesia | (-) | 11 | 10 | 83.9% | 91.2% | 68.8% | 52.4% | 80.8% | 0.472 | <0.001 | (+) | 5 | 52 |
| Anterior-Drawer Preanesthesia | (-) | 12 | 13 | 79.0% | 92.5% | 75.0% | 48.0% | 78.2% | 0.447 | <0.001 | (+) | 4 | 49 |
| Pivot-Shift Preanesthesia | (-) | 15 | 27 | 56.5% | 97.2% | 93.8% | 35.7% | 64.1% | 0.313 | 0.001 | (+) | 1 | 35 |
| Lever Preanesthesia | (-) | 15 | 5 | 91.9% | 98.3% | 93.8% | 75.0% | 92.3% | 0.784 | <0.001 | (+) | 1 | 57 |
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Kappa Test PPV: Positive predictive value, NPV: Negative predictive value, MR: Magnetic resonance |