Radiographic abnormality versus normal
| Full extension | Full flexion | Full pro | Equal ROM | |
|---|---|---|---|---|
| NPV, negetive predictive value; PPV, positive predictive value; ROM, range of movement. | ||||
| Sensitivity | 0.478 (0.403, 0.555) | 0.565 (0.488, 0.639) | 0.509 (0.433, 0.585) | 0.211 (0.155, 0.281) |
| Specificity | 0.916 (0.863, 0.949) | 0.777 (0.708, 0.834) | 0.795 (0.727, 0.850) | 0.976 (0.940, 0.991) |
| PPV | 0.846 (0.758, 0.906) | 0.711 (0.627, 0.782) | 0.707 (0.618, 0.782) | 0.895 (0.759, 0.958) |
| NPV | 0.664 (0.581, 0.702) | 0.648 (0.580, 0.711) | 0.626 (0.559, 0.688) | 0.561 (0.503, 0.617) |