Table 1 Descriptions of measurements of ACL and patella
Definition | |
|---|---|
ACL angle (°) | The angle between the tangential line of ACL and the line perpendicular to the long axis of the tibia in sagittal plane |
D (mm) | The distance between the posterior aspects of lateral femoral condyle and tibial plateau in sagittal plane |
Patella shift (mm) | The distance between the eminence of patella and the bottom of femoral trochlea at the level of line of posterior femoral condyles in coronal plane |
LPFA (°) | The angle between the line of the femoral trochlea eminences and the tangential lines of the lateral facet of the patella in coronal plane |
Patellar tilt (°) | The angle between the line of the posterior femoral condyles and long axis line of patella in coronal plane |