Disclosed is a device and method of bicompartmental arthroplasty of the
knee. The device permits arthroplasty of the medial or lateral and
patellofemoral compartments of the knee while leaving the opposite
compartments and the anterior and posterior cruciate ligaments intact.
The device provides a femoral prosthesis component that includes a
trochlear surface and a tibial prosthesis component which can be secured
to the tibia. The femoral component is essentially "u" shaped having an
anterior leg upon which the trochlear surface is positioned and a
posterior leg which engages the posterior surface of the distal end of
the femur. The femoral component also has a convex articulating surface
which engages a concave articulating surface of the tibial prosthesis
component to approximate the articulation of a healthy knee. The patellar
prosthesis is applied to the posterior surface of the patella and
articulates with the trochlear exterior surface of the femur.
