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Spinal facet implant with spherical implant apposition surface and bone bed and methods of use

  • US 7,914,560 B2
  • Filed: 09/29/2008
  • Issued: 03/29/2011
  • Est. Priority Date: 02/17/2004
  • Status: Active Grant
First Claim
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1. A method for replacing a facet of a mammalian vertebra, the method comprising the steps of:

  • resecting at least a portion of the facet;

    implanting a fixation element into a pedicle of the resected facet, the fixation element having a distal end with a bone engaging surface and a proximal end extending outward from the pedicle,after the implanting step, introducing a connecting element over the proximal end of the fixation element, the connecting element allowing polyaxial adjustment of a prosthetic facet relative to the fixation element;

    polyaxially rotating the prosthetic facet relative to the fixation element such that the prosthetic facet is positioned to articulate against a second facet; and

    fixedly attaching the prosthetic facet to the fixation element to inhibit polyaxial movement of the prosthetic facet relative to the fixation element.

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