In vitro study of accuracy of subaxial cervical pedicle screw insertion using calipers based on the gravity line

摘要

ObjectThere is a high probability of iatrogenic perforation of the vertebral pedicle wall during the application of subaxial cervical pedicle screw (CPS). The goal of this study was to evaluate the accuracy of CPS insertion at C3-C7 in vitro using novel calipers based on the gravity line.