Table 1 Abbreviation and definition of proximal tibial morphometric parameters
Abbreviation | Measurement | Definition |
|---|---|---|
ML | Mediolateral length | The longest mediolateral line of the proximal cut tibial surface, parallel and collinear to the surgical epicondylar axis of the femur |
AP | Anteroposterior width | The distance of a perpendicular line is drawn through the midpoint of the ML |
MAP | Medial anteroposterior width | The distance of a parallel line to the AP line and passed through the extreme posterior point to the extreme anterior point of the medial tibial condyle |
LAP | Lateral anteroposterior width | The distance of a parallel line to the AP line and passed through the extreme posterior point to the extreme anterior point of the lateral tibial condyle |
CM | Central to a medial length | The distances of the MAP lines to the AP line. |
CL | Central to a lateral length | The distances of the LAP lines to the AP line. |
MAR | Medial anterior radius | The least-squares best-fit circle creates the radius-to-anterior medial profile |
LAR | Lateral anterior radius | The least-squares best-fit circle creates the radius-to-anterior lateral profile |
AR | Aspect ratio | Tibial aspect ratio: ML length divided by AP width |