System and method for aligning vertebrae in the amelioration of aberrant spinal column deviation conditions
First Claim
1. A system for aligning vertebrae in the amelioration of aberrant spinal column deviation conditions comprising:
- a first set of pedicle screws, said pedicle screws each having a threaded shank segment and a head segment; and
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 said pedicle screw engagement member being configured for engaging with, and transmitting manipulative forces applied to said first handle means to said head segments of one of said pedicle screws of said first set of pedicle screws,
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Accused Products
Abstract
A system and method for ameliorating spinal column anomalies, such as scoliosis, includes bone screws which are to be implanted in the pedicle region(s) of individual to-be-derotated vertebrae and in vertebrae to which balancing forces must be applied as the spinal column is manipulated en mass to achieve an over-all correction of the condition. A pedicle screw cluster derotation tool simultaneously engages multiple pedicle screws and transmits manipulative forces to multiple vertebrae to effect a whole-spine correction. Pre-contoured spinal rods are engaged post-derotation to secure the correction.
98 Citations
10 Claims
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1. A system for aligning vertebrae in the amelioration of aberrant spinal column deviation conditions comprising:
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a first set of pedicle screws, said pedicle screws each having a threaded shank segment and a head segment; and
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 said pedicle screw engagement member being configured for engaging with, and transmitting manipulative forces applied to said first handle means to said head segments of one of said pedicle screws of said first set of pedicle screws, - View Dependent Claims (2)
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3. A method for aligning vertebrae in the amelioration of aberrant spinal column deviation conditions comprising the steps of:
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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 said pedicle screw engagement member being configured for engaging with, and transmitting manipulative forces applied to said first handle means to said head segments of one of said pedicle screws of said first set of pedicle screws, implanting a said pedicle screw in a pedicle region of each of a first group of vertebrae of a spinal column which exhibits an aberrant spinal column deviation condition;
engaging a said pedicle screw engagement member respectively with said head segment of each of said pedicle screws of said first set of pedicle screws; and
applying manipulative force to said first handle means in a manner for simultaneously rotating said vertebrae of said first group of vertebrae in which said pedicle screws are implanted to achieve an amelioration of an aberrant spinal column deviation condition. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
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Specification