Asymmetric hip stem
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United States of America Patent
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Jul 7, 1998
Grant Date -
N/A
app pub date -
May 24, 1996
filing date -
May 24, 1996
priority date (Note) -
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Abstract
An improved asymmetric femoral hip stem component for use in cementless hip replacement procedures is described. The stem comprises a proximal region having a novel three-dimensional configuration to allow for better fit and stability of the stem within the femoral intramedullary canal with minimal removal of strong bone therefrom. The stem further includes a twist isolated in the mid-stem region to improve fit while minimizing enlargement of the femoral canal. A distal end comprising a rotated internal slot is also described, wherein the slot reduces bending stiffness of the stem in both the coronal and sagittal planes.
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