Every one of us has a unique articular travel:
KTJ^© articulated joint
adapts to the individual

The knee has a personal anthropometrical feature, its articular travel is determined by the length of the cruciate ligaments and by every single point of insertion.

From a study of the trajectory of the leg the personal equation of your knee can be determined, personalizing the movement of the articulated Knee Top Joint^©.

This mechanical feature enables the instantaneous centre of rotation to always fall on the perpendicular of the articular surfaces as a normal anatomical relation.