Patent ID: 9713488
Date: 2017-07-25
CPC Classifications: A61B

Claim:
1. A method for treating spinal column shape deformation comprising: fixing a first fixation screw assembly to a first vertebra of a patient's spinal column, the first fixation screw assembly having a fixation screw, a rod receiving channel with separable channel arm extensions, the channel being movable relative to the fixation screw through a range of angles, the first fixation screw assembly having a locking device for separately locking the channel against movement relative to the fixation screw and a rod against movement in the channel, moving the channel relative to the fixation screw laterally relative to the spinal column toward the coronal plane of the spinal column to a first plane, positioning a rod between the arm extensions and in the first plane, moving the channel relative to the fixation screw medially relative to the spinal column toward the sagittal plane of the spinal column to place the rod in a second plane generally aligned with the sagittal plane, adjusting the locking device along the arm extensions to move the rod within the channel, adjusting the locking device to lock the channel relative to the fixation screw, further adjusting the rod relative to the channel, and adjusting the locking device to lock the rod against movement relative to the channel.