Method and apparatus for spinal fixation
First Claim
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1. A method of providing spinal fixation, comprising the steps of:
- advancing a first fixation device that comprises a body having a first portion that forms a bone anchor and a second portion that forms a proximal end into a first vertebra;
advancing a second fixation device that comprises a body having a first portion that forms a bone anchor and a second portion that forms a proximal end into a second vertebra;
coupling a first portion of a fixation structure to the first fixation device;
coupling a second portion of the fixation structure to the second fixation device;
securing the first portion of the fixation structure to the first vertebra by advancing a first proximal anchor distally along the body of the first fixation device and proximally retracting the body of the first fixation device with respect to the first proximal anchor; and
securing the second portion of the fixation structure to the second vertebra by advancing a second proximal anchor distally along the body of the second fixation device and proximally retracting the body of the second fixation device with respect to the second proximal anchor.
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Abstract
Disclosed is a fixation device for spinal fixation. The fixation device includes an elongated body comprising a bone anchor at a distal end. An axially moveable proximal anchor is carried by the proximal end of the fixation device. In one embodiment, the device is inserted through a first vertebra and the bone anchor is rotated into positioned within a second vertebra. The proximal anchor is distally advanced with respect to the bone anchor to provide compression across the first and second vertebra. In other embodiments, the device is used to secure stabilization devices across two or more vertebra.
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Citations
20 Claims
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1. A method of providing spinal fixation, comprising the steps of:
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advancing a first fixation device that comprises a body having a first portion that forms a bone anchor and a second portion that forms a proximal end into a first vertebra; advancing a second fixation device that comprises a body having a first portion that forms a bone anchor and a second portion that forms a proximal end into a second vertebra; coupling a first portion of a fixation structure to the first fixation device; coupling a second portion of the fixation structure to the second fixation device; securing the first portion of the fixation structure to the first vertebra by advancing a first proximal anchor distally along the body of the first fixation device and proximally retracting the body of the first fixation device with respect to the first proximal anchor; and securing the second portion of the fixation structure to the second vertebra by advancing a second proximal anchor distally along the body of the second fixation device and proximally retracting the body of the second fixation device with respect to the second proximal anchor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification