ArticleFrontiers in bioengineering and biotechnology2026
Finite element and
Article in Frontiers in bioengineering and biotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
7 authors.
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Abstract
Background: Magnesium degradation-induced variable fixation plates (MVFPs) offer different fixation modes during fracture healing, but their biomechanical reliability is not well established. Materials and Methods: CT images of femurs from volunteers were used to build a model, and Abaqus software simulated deformation, stress, and relative displacement under various stress conditions. Mechanical tests including vertical loading, four-point bending, torsion, and fatigue were conducted using femur simulation models and suitable magnesium shims were screened. Results: Finite element analysis showed that under 700N vertical loading, MVFP exhibited 83%-116% of the total deformation, 88%-120% of the maximum stress, and 86%-121% of the average relative displacement compared to locking plate (LP). Under 250N four-point bending, these were 76%-186%, 73%-183%, and 61%-170%, respectively. Under 10Nm torsional moment, they were 102%-109%, 114%-118% (for implants), and 110%-113%, respectively. Conclusion: Although MVFP's stiffness slightly decreases compared to LP after shim degradation, it improves interfragmentary micromotion and reduces stress shielding while maintaining good fatigue resistance. MVFP with 0.5 mm axial micromotion shows promise for further development and clinical application.
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