Acetabular prosthesis having a metal supporting shell
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United States of America Patent
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-
Oct 20, 1992
Grant Date -
N/A
app pub date -
Sep 27, 1990
filing date -
Sep 28, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The acetabular prosthesis includes a metal supporting shell having collar-shaped projections which have tapered cutting edges for penetrating into the osseous tissue of a pelvic bone. The distal portions of the projections are tapered so that plugs of bone can be formed upon penetration of the projections into the osseous tissue. The projections may be filled with bone chips prior to fitting in of a plastic shell within the metal supporting shell. A multi layer metal mesh is provided on the outer surface of the metal shell for promoting fusion. If the overall attachment is not adequate, the projections can be used for insertion and centering of bone screws.
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