Anti-Rotation Fixation Element for Spinal Prostheses
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United States of America Patent
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app pub date -
Mar 29, 2012
filing date -
Apr 22, 2004
priority date (Note) -
Abandoned
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Abstract
Prostheses, systems, and methods are provided for replacement of natural facet joints between adjacent vertebrae with vertebral prostheses. A portion of the vertebral prosthesis includes anti-rotation and/or anti-pullout elements to prevent or reduce prosthesis fastener rotation or pull out as a result of torques applied to the prosthesis. Various tools and methods aid the process of surgically adding the vertebral prosthesis to a patient's vertebra.
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