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Accuracy of Freehand Pedicle Screws Versus Lateral Mass Screws in the Subaxial Cervical Spine by Hey, Hwee Weng Dennis; Zhuo, Wen-Hai; Tan, Yong Hao Joel; Tan, Jiong Hao is a Medicine article available to read on EtoBox.

What is Accuracy of Freehand Pedicle Screws Versus Lateral Mass Screws in the Subaxial Cervical Spine about?

## Study design: Radiographic comparative study with prospectively collected data. ## Objectives: To assess the accuracy of subaxial cervical pedicle screw (cps) placement with freehand technique compared to lateral mass screws (lms). the freehand cervical pedicle screw insertion technique guided by intraoperative lateral c-arm imaging has been shown to be both safe and effective. however, no study has performed a 100% audit of this technique using pre- and postoperative computed tomography (ct) to determine its true accuracy, as well as its reduction capability of cps and lms instrumentation. ## Methods: 36 consecutive patients treated surgically by a single surgeon with the exclusive practice of lms and subsequently cps over 2 years were included. ct and eos slot scanner were performed pre- and post-operatively to determine the extent of pedicle screw breach and to assess sagittal alignment reduction between cps and lms groups. predictors of pedicle screw breaches were also identified using multivariate analysis. ## Results: Cps fixation was more effective in restoring global cervical angle and had superior reduction capability of cervical lordosis at the levels of c3/4 (5.00 ± 3

Who reads Accuracy of Freehand Pedicle Screws Versus Lateral Mass Screws in the Subaxial Cervical Spine?

Author

Hey, Hwee Weng Dennis; Zhuo, Wen-Hai; Tan, Yong Hao Joel; Tan, Jiong Hao

Publisher

Elsevier ; Elsevier BV; Springer Science and Business Media LLC (ISSN 2212-134X)

Published

2020

Language

EN

Field

Medicine (Health Sciences)