Methods, systems, and devices for replacement of a joint with a prosthetic
system that replicates the natural kinematics of the joint is disclosed.
A prosthetic system according to one embodiment includes a tibial
component having a tibial plateau and a tibial stem portion, the tibial
plateau having a top side and a bottom side, a tibial insert, with a
bearing surface adapted to be positioned on the top side of the tibial
plateau, a femoral component having a base portion and a central housing,
the femoral component having an axis of extension-flexion rotation, the
base portion having a pair of condyles, a mechanical linkage component
linking the tibial component with the femoral component and with the
tibial insert in between the tibial component and the femoral component,
so that there is a center of contact between the condyles and the bearing
surface, the mechanical linkage component adapted to allow the center of
contact to move posteriorly during flexion, provide for the movement of
the axis of extension-flexion rotation in the superior-inferior
direction, and allow rotation of the tibial component, the bearing
surface, and the femoral component about a superior-inferior axis in
order to provide and control the natural kinematics of the knee joint.