Knee prosthesis having a deformable articulation surface
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United States of America Patent
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Sep 28, 2010
Grant Date -
Jul 7, 2005
app pub date -
Dec 3, 2004
filing date -
Sep 4, 1995
priority date (Note) -
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Abstract
Knee prostheses are provided. In some embodiments, the knee prostheses include a body formed of a resilient polyurethane having contact surface area that changes during use according to physical loading factors. In some embodiments, the knee prostheses include a femoral component configured for secure engagement with a lower portion of a femur without penetrating the femur and a tibial component configured for secure engagement with an upper portion of a tibia without penetrating the tibia. In that regard, the tibial component is also configured for moving engagement with the femoral component in some instances.
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