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...

Full description

Bibliographic Details

Published in:	Journal of Orthopaedic Surgery and Research
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
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