Prosthesis for implant on the tibial plateau of the knee
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United States of America Patent
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Apr 13, 1993
Issued Date -
N/A
app pub date -
Oct 9, 1991
filing date -
Jan 8, 1990
priority date (Note) -
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status (Latency Note)
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Abstract
A knee joint prosthesis includes tibial and femoral components and a bearing insert designed for unicompartmental prosthetic total knee replacement and can be implanted using arthroscopic surgical techniques. The tibial and femoral prosthesis components have channels or portals therethrough allowing supply of cement to the prosthesis-bone interface after the prosthesis has been positioned for implant. Recesses communicate with the channels and cooperate with the bone surfaces to form cement receiving chambers, and rims at least partially surround the recesses to penetrate the bone surfaces to stabilize the positions of the prostheses and form seals preventing cement from escaping from the prosthesis-bone interfaces.
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