Stemmed femoral component for the human hip
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United States of America Patent
Stats
-
Sep 27, 1983
Grant Date -
N/A
app pub date -
Apr 19, 1982
filing date -
Apr 19, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stemmed femoral component for the human hip for which fixation is provided by bony ingrowth and which may be easily removed for replacement thereof by an osteotone. The two-piece component includes a stem which is elongated and has on its proximal end a Morse cone and a laterally extending collar adapted to reside on the cortical bone in the region of the femoral neck. The stem is textured or provided with a porous material on its outer surfaces only in the metaphyseal portion and only on the anterior, lateral, and posterior surfaces. The medial surface is smooth, as is the diaphyseal portion of the stem. In this manner, bony ingrowth takes place only in regions that can be reached with a osteotone for removal. A threaded extractor and mating hole in a driving platform may also be provided for removal.
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