Fixation of implants in bone
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United States of America Patent
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Jun 28, 1988
Grant Date -
N/A
app pub date -
Jan 15, 1985
filing date -
Jan 16, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A bone implant assembly having an implant element whereof a stem portion is for insertion into a bone cavity, and wedge means for wedging between a proximal region of the cavity wall and the stem. The stem is tapered so that deeper insertion urges the wedge means against the wall. The wedge means may comprise lateral and medial wedges. Each may comprise a stem engaging portion with a low-friction surface, and an outer, wall engaging portion having a surface adapted for non-slip engagement, being a high friction surface and/or adapted for ingrowth of bone.
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