Intervertebral allograft spacer
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United States of America Patent
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Apr 29, 2003
Grant Date -
May 23, 2002
app pub date -
Jul 6, 2001
filing date -
Aug 3, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
An allogenic intervertebral implant for fusing vertebrae is disclosed. The implant is a piece of allogenic bone conforming in size and shape with a portion of an end plate of a vertebra. The implant has a wedge-shaped profile to restore disc height and the natural curvature of the spine. The top and bottom surfaces of the implant have a plurality of teeth to resist expulsion and provide initial stability. The implant according to the present invention provides initial stability need for fusion without stress shielding.
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