Device and method for bicompartmental arthroplasty
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United States of America Patent
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Jul 12, 2005
Grant Date -
Aug 26, 2004
app pub date -
Feb 20, 2003
filing date -
Feb 20, 2003
priority date (Note) -
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Abstract
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.
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