Two additional augmenting screws with posterior short-segment instrumentation without fusion for thoracolumbar burst fracture: Clinical and radiographic outcomes

摘要

Background/Purpose: Posterior short-segment instrumentation (one screw above and one screw below) for unstable thoracolumbar burst fracture has a high rate of implants failure. The aim of this study was to determine whether short-segment instrumentation with two additional augmenting screws in the injured vertebra is sufficient to treat thoracolumbar burst fracture. Methods: Nineteen consecutive patients with single-level thoracolumbar burst fracture treated with short-segment pedicle screw fixation and two additional augmenting screws between January 2010 and December 2011 were studied. Preoperative, immediate postoperative, and one-year follow-up radiographs were assessed. We also used the Denis classification system to evaluate final clinical outcome.