Superior biomechanical stability of pedicle screws compared to lateral mass screws: recommendations for bicortical positioning and enhancing bone contact in geriatric C1 vertebrae

Superior biomechanical stability of pedicle screws compared to lateral mass screws: recommendations for bicortical positioning and enhancing bone contact in geriatric C1 vertebrae

Abstract Background In atlantoaxial instabilities, posterior C1/C2 fusion using lateral mass screws (LMS) or pedicle screws (PS) in a mono- or bicortical position in the atlas is a typical treatment. The bone microstructure and positioning of the screw trajectories appear to be of significant releva...

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Main Authors: Leon-Gordian Leonhardt, Leonie Rörup, Anna Lena Kammal, Michael Hahn, Marc Dreimann, Benjamin Ondruschka, Felix Nikolai von Brackel, Tim Rolvien, Lennart Viezens, Simon von Kroge
Format: Article
Language:English
Published: BMC 2025-01-01
Series:Journal of Orthopaedic Surgery and Research
Subjects:
Cervical spine surgery
Lateral mass screw
Pedicle screw
Mechanical testing
C1
Bone microstructure
Online Access:https://doi.org/10.1186/s13018-025-05472-1
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https://doi.org/10.1186/s13018-025-05472-1

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