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Table 1 Descriptions of the measurement methods

From: Medialization of trochlear groove was correlated with extended lateral trochlear in trochlear dysplasia: a transverse CT analysis

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