Cervical disc replacement method
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United States of America Patent
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-
Feb 14, 2006
Grant Date -
Sep 9, 2004
app pub date -
Feb 11, 2004
filing date -
Mar 6, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for replacing at least a portion of an intervertebral disc in a spinal column includes: removing the portion of the intervertebral disc from the spinal column; and inserting an apparatus for replacing the portion of the intervertebral disc into an intervertebral disc space defined substantially between adjacent vertebral bones of the spinal column, and positioning the apparatus between the vertebral bones, wherein the apparatus is operable to permit the adjacent vertebral bones to articulate relative to one another about at least one of: (i) a first center of rotation for at least one of flexion and extension that is located outside the intervertebral disc space, and (ii) a second center of rotation for lateral bending that is located outside the intervertebral disc space.
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