Table 1.
Maximum deflection angles and moments for intact versus absent ACL | |||||||||
---|---|---|---|---|---|---|---|---|---|
ID | Knee flexion angle | Internal rotation, ACL absent | External rotation, ACL absent | Internal rotation, ACL intact | External rotation, ACL intact | ||||
Angle (°) | Nm | Angle (°) | Nm | Angle (°) | Nm | Angle (°) | Nm | ||
I | 0° | 19.0 | 18.4 | −13.6 | 16.7 | 13.3 | 12.5 | −9.2 | 11.4 |
II | 23.1 | 28.3 | −17.8 | 23.9 | 13.5 | 16.1 | −11.3 | 19.4 | |
III | 12.0 | 16.2 | −17.9 | 18.2 | 3.9 | 7.6 | −10.0 | 14.0 | |
IV | 13.5 | 20.2 | −15.1 | 17.4 | 7.5 | 12.9 | −10.3 | 13.6 | |
V | 21.9 | 20.6 | −26.3 | 21.9 | 15.1 | 13.8 | −19.8 | 15.5 | |
VI | 13.0 | 14.4 | −16.7 | 15.8 | 8.4 | 13.7 | −13.1 | 14.6 | |
I | 30° | 21.4 | 17.0 | −15.6 | 19.1 | 18.5 | 13.8 | −9.6 | 13.1 |
II | 23.1 | 25.1 | −17.9 | 23.6 | 13.8 | 11.8 | −10.3 | 13.1 | |
III | 16.8 | 16.9 | −14.3 | 16.8 | 7.1 | 6.2 | −10.7 | 9.4 | |
IV | 13.0 | 19.4 | −13.2 | 22.2 | 8.4 | 11.3 | −9.9 | 16.6 | |
V | 22.5 | 18.4 | −25.2 | 22.6 | 13.6 | 11.1 | −22.5 | 16.0 | |
VI | 17.7 | 15.8 | −18.1 | 14.4 | 12.0 | 12.4 | −12.9 | 15.1 | |
I | 90° | 22.8 | 31.6 | −12.4 | 23.3 | 18.3 | 18.5 | −8.2 | 17.8 |
II | 18.4 | 30.2 | −10.7 | 30.1 | 10.1 | 17.6 | −5.4 | 16.3 | |
III | 10.6 | 16.8 | −10.0 | 17.4 | 6.7 | 12.9 | −10.8 | 18.2 | |
IV | 12.5 | 19.4 | −11.8 | 20.1 | 8.2 | 16.8 | −6.2 | 15.5 | |
V | 22.8 | 15.8 | −26.2 | 19.9 | 14.9 | 10.8 | −15.2 | 16.9 | |
VI | 21.8 | 29.1 | −15.7 | 28.6 | 9.0 | 13.8 | −10.8 | 26.6 | |
Knee flexion angle | Averaged values of maximum rotation and corresponding moments | ||||||||
Angle (°) | Nm | Angle (°) | Nm | Angle (°) | Nm | Angle (°) | Nm | ||
Meana | 0° | 17.1 | 19.6 | −17.9 | 19.0 | 10.3 | 12.8 | −12.3 | 14.8 |
SEMb | 2.0 | 2.0 | 1.8 | 1.3 | 1.8 | 1.2 | 1.6 | 1.1 | |
Meana | 30° | 19.1 | 18.8 | −17.4 | 19.8 | 12.2 | 11.1 | −12.6 | 13.9 |
SEMb | 1.6 | 1.4 | 1.8 | 1.5 | 1.7 | 1.1 | 2.0 | 1.1 | |
Meana | 90° | 18.1 | 23.8 | −14.5 | 23.2 | 11.2 | 15.1 | −9.4 | 18.5 |
SEMb | 2.2 | 3.0 | 2.5 | 2.1 | 1.8 | 1.2 | 1.5 | 1.7 |
Data are given for each cadaver and each flexion angle, each for the intact and the absent ACL
aArithmetic mean
bStandard error of mean