Patent ID: 7473269
Filing Date: 2009-01-06
Classification: A61B

Abstract:
1. A method of instrumentation for patients undergoing spinal treatment and comprising: at a first motion segment of the spine, placing a first pedicle screw entering the cephalad border of the pars interarticularis at the junction of the caudal aspect of the inferior facet at one side of the spine; at said first motion segment, placing a second pedicle screw entering the cephalad border of the pars interarticularis at the junction of the caudal aspect of the inferior facet at the other side of the spine; at a second motion segment of the spine, placing a third pedicle screw entering the cephalad border of the pars interarticularis at the junction of the caudal aspect of the inferior facet at the one side of the spine; at the said second motion segment, placing a fourth pedicle screw entering the cephalad border of the pars interarticularis at the junction of the caudal aspect of the interior facet at the other side of the spine; connecting a first cross support to the first and second pedicle screws; connecting a second cross support to the third and fourth pedicle screws; connecting a longitudinal support to said first and second cross supports; adjusting the relationship of the cross supports relative to each other; and fixing the cross supports to the pedicle screws and to the longitudinal support.