Partial Threading of Pedicle Screws in a Standard Construct Increases Fatigue Life: A Biomechanical Analysis

This study proposed a pedicle screw design where the proximal 1/3 of the screw is unthreaded to improve fixation in posterior spinal surgery. This design was also expected to reduce the incidence of mechanical failure often observed when an unsupported screw length is exposed outside the vertebra in...

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Bibliographic Details
Main Authors: Fon-Yih Tsuang, Chia-Hsien Chen, Lien-Chen Wu, Yi-Jie Kuo, Yueh-Ying Hsieh, Chang-Jung Chiang
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/4/1503