Table 1 Descriptions of the measurement methods
Parameters | Abbreviations | Definition |
|---|---|---|
Anatomical epicondylar axis | AEA | Line connecting the prominences of the medial and lateral epicondyles on axial view |
Linear distance of medial trochlear edge | dMTE | Linear distance from the medial epicondyle to medial trochlear edge parallel to the AEA |
Linear distance of lateral trochlear edge | dLTE | Linear distance from the medial epicondyle to lateral trochlear edge parallel to the AEA |
Linear distance of trochlear groove | dTG | Linear distance from the medial epicondyle to the lowest point of the proximal trochlear groove parallel to the AEA |
Medial trochlear width | wMT | Linear width of dTG minus dMTE |
Lateral trochlear width | wLT | Linear width of dLTE minus dTG |