System and method for aligning vertebrae in the amelioration of aberrant spinal column deviation conditions

CAFC
  • US 7,670,358 B2
  • Filed: 12/30/2004
  • Issued: 03/02/2010
  • Est. Priority Date: 12/30/2004
  • Status: Active Grant
First Claim
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1. A method for aligning vertebrae in the amelioration of aberrant spinal column deviation conditions comprising the steps of:

  • selecting a first set of pedicle screws, said pedicle screws each having a threaded shank segment and a head segment;

    selecting a first pedicle screw cluster derotation tool, said first pedicle screw cluster derotation tool having first handle means and a first group of pedicle screw engagement members which are mechanically linked with said first handle means, each pedicle screw engagement member being configured for engaging with, and transmitting manipulative forces applied to said first handle means to said head segment of each pedicle screw of said first set of pedicle screws,implanting a each pedicle screw in a pedicle region of each of a first group of multiple vertebrae of a spinal column which exhibits an aberrant spinal column deviation condition;

    engaging each pedicle screw engagement member respectively with said head segment of each pedicle screw of said first set of pedicle screws; and

    applying manipulative force to said first handle means in a manner for simultaneously engaging said first group of pedicle screw engagement members and first set of pedicle screws and thereby in a single motion simultaneously rotating said vertebrae of said first group of multiple vertebrae in which said pedicle screws are implanted to achieve an amelioration of an aberrant spinal column deviation condition;

    selecting a first length of a spinal rod member;

    wherein one or more of said pedicle screws of said first set of pedicle screws each includes;

    a spinal rod conduit formed substantially transverse of the length of said pedicle screw and sized and shaped for receiving passage of said spinal rod member therethrough; and

    spinal rod engagement means for securing said pedicle screw and said spinal rod member, when extending through said spinal rod conduit, in a substantially fixed relative position and orientation;

    extending said first length of said spinal rod member through said spinal rod conduits of one or more of said pedicle screws of said first set of pedicle screws; and

    after applying said manipulative force to said first handle means, actuating said spinal rod engagement means to secure said vertebrae in their respective and relative positions and orientations as achieved through application of said manipulative force thereto.

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