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Vertebral prosthesis and spinal fixation system

  • US 7,883,543 B2
  • Filed: 10/01/2004
  • Issued: 02/08/2011
  • Est. Priority Date: 10/01/2004
  • Status: Active Grant
First Claim
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1. A spinal implant system for replacing a damaged vertebra in a spinal fusion procedure, comprising:

  • a vertebral prosthesis adapted to be placed at the site of an excised vertebra between two adjacent vertebrae, the vertebral prosthesis comprising a shaft having two ends and an endplate at each end, wherein the shaft is rigid and the endplates are locked to the shaft to create a rigid structure suitable for a spinal fusion procedure in which the vertebrae adjacent to the vertebral prosthesis are fused together with the vertebral prosthesis as one rigid structure;

    a bone screw;

    an anchor extending from at least one of the endplates wherein the anchor is positioned on the endplate such that it is configured to extend into one of the adjacent vertebrae; and

    a spinal fixation device coupled to the prosthesis by the bone screw, wherein the bone screw is adapted to extend through at least a portion of one of the adjacent vertebrae;

    wherein the anchor comprises a body portion and an aperture configured to receive the bone screw when within the adjacent vertebra, and further wherein the aperture is threaded.

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