Abstract:Background: CBT was proposed as a new trajectory that can improve the fixation of pedicle screws in response to screw loosening in osteoporotic patients. CBT involves a medial-to-lateral direction and a caudocephalad path aiming at maximizing thread contact with higher-density bone with a final aim of this track to improve the adhesion of the screws in osteoporotic vertebrae and to prevent instrumentation failure. However, some studies revealed contradictory findings concerning its effectiveness. Aim of the Wo… Show more
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