Influence of Screw Length and Bone Quality on Pedicle Screw Anchorage Under Cyclic Fatigue Loading
= .049).ConclusionsIn healthy vertebrae, screw anchorage is mainly pedicular, and extending screw length into the vertebral body adds no benefit. In osteoporotic bone, overall fixation strength declines, but vertebral body contribution increases, so longer screws provide significantly greater stability, whereas shorter screws remain adequate in healthy bone.
Authors
- Betül Tekin (ORCID: https://orcid.org/0000-0001-6365-9986)
- Paul Jonathan Roch (ORCID: https://orcid.org/0000-0002-4357-4886)
- Marc‐Pascal Meier (ORCID: https://orcid.org/0000-0001-9933-9650)
- Katharina Jäckle (ORCID: https://orcid.org/0000-0002-3086-4278)
- Friederike Sophie Klockner (ORCID: https://orcid.org/0000-0003-3241-9730)
- Lukas Weiser (ORCID: https://orcid.org/0000-0001-9812-4658)
- Hassan Awan Malik
- W. Lehmann
- Friederike Eva Roch
Institutions
- University of Göttingen (DE)
Publication Details
- Journal
- Global Spine Journal
- Published
- 2026-04-13
- DOI
- https://doi.org/10.1177/21925682261442309
- Primary Topic
- Spinal Fractures and Fixation Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00