Table 3 Positive MRI findings after ACL reconstruction to evaluate the stability of knee joint after operation
Statistical evaluation | |||||||
|---|---|---|---|---|---|---|---|
MRI findings | Sensitivity (%) | Specificity (%) | consistency rate (%) | Positive predictive value | Negative predictive value | Kappa | P |
Position of tibial tunnel entrance | 60.00 (6/10) | 88.33 (53/60) | 84.29 (59/70) | 46.15 (6/13) | 92.98 (53/57) | 0.430 | 0.000 |
Percentage of the position of tibial tunnel entrance | 30.00 (6/20) | 86.00 (43/50) | 70.00 (49/70) | 46.15 (6/13) | 75.44 (43/57) | 0.179 | 0.020 |
Position of tibial tunnel exit | 27.03 (10/37) | 90.91 (30/33) | 57.14 (40/70) | 76.92 (10/13) | 52.63 (30/57) | 0.173 | 0.044 |
Lateral tibial posterior slope (LTPS) | 58.33 (7/12) | 89.66 (52/58) | 84.29 (59/70) | 53.85 (7/13) | 91.23 (52/57) | 0.465 | 0.000 |
Width of intercondylar notch | 33.33 (9/27) | 90.70 (39/43) | 68.57 (48/70) | 69.23 (9/13) | 68.42 (39/57) | 0.266 | 0.012 |