Semi-constrained artificial joint
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United States of America Patent
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-
Jan 6, 1987
Grant Date -
N/A
app pub date -
Feb 9, 1984
filing date -
Feb 9, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An artificial joint having stepped convex and concave bearing surfaces is provided. The stepped configuration prevents the bearing surfaces from sliding past one another along their axis of rotation and thus stabilizes the joint against lateral dislocations. In certain preferred embodiments, the stepped bearing surfaces faces are employed in an artificial knee joint and the joint is further stabilized against dislocations corresponding to the femur moving anteriorly with respect to the tibia.
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