Clinical Application of Three Dimensional Reconstruction Technique for Upper Thoracic and Cervi-cal Vertebra Screw Placement
Abstract：Objective To calculate the accuracy and safety of upper thoracic and cervical vertebra screw placement by u-sing three-dimensional reconstruction technique. Methods From January 2013 to November 2013,12 patients′upper thoracic and cervical pedicle parameters and inserting pedicle screws pathways were directly measured before operation by Mimics 10. 1. 50. Screws were inserted during the operation according to the designed pedicle screws pathways. After surgery,the positions of the pedicle screws were evaluated by CT scan. The complications related to screws placement were recorded. Results 47 of the 50 screws located in the pedicle,while 3 screws were noted to break the pedicle. The unintended perforation rate was 6%. The accurate rate of upper thoracic and cervical screw placement was 94%,and overall acceptable screw ratio( <2 mm breach is safe)was 100%. No neurovascular and visceral injury related-complications was noted. Conclusion Upper thoracic and cervical screw placement assisted by patient-specific pedicle pathways under the three-dimensional reconstruction by using Mimics software is safe and reliable.
Keywords：upper thoracic vertebraecervical vertebraethree-dimensional reconstructionmimics softwarepedicle screws
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 582-586 )