Biomechanical evaluation of conventional locking compression plate and double locking compression plate combined with locking screw use to stabilize midshaft ulna fracture: A finite element study

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Published: Dec 29, 2024
DOI: https://doi.org/10.69598/sehs.18.24040007
Keywords:
double locking compression ulna fracture biomechanics

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Potsadom Moraksa
Department of Mechanical Engineering, Faculty of Engineering at Sriracha, Kasetsart University, Chonburi, Thailand
Sujin Wanchat
Department of Mechanical Engineering, Faculty of Engineering at Sriracha, Kasetsart University, Chonburi, Thailand / Digital Industrial Design and Manufacturing Research Unit, Faculty of Engineering at Sriracha, Kasetsart University, Chonburi, Thailand
Nattapon Chantarapanich
Department of Mechanical Engineering, Faculty of Engineering at Sriracha, Kasetsart University, Chonburi, Thailand / Digital Industrial Design and Manufacturing Research Unit, Faculty of Engineering at Sriracha, Kasetsart University, Chonburi, Thailand. Corresponding author's e-mail: nattapon@eng.src.ku.ac.th

Abstract

This study explored the impact of midshaft ulna fractures on biomechanical performance of double locking compression (D-LCP) in comparison to conventional locking compression plates, utilizing finite element method. The study included transverse middle fractures stabilized with titanium implants, involving models of midshaft ulna and two fixation plates (D-LCP implant and C-LCP implant) created and aligned virtually using CAD. Four-node tetrahedral elements were employed in the finite element model, and regular daily activity loading conditions were applied to each model at axial compression, axial torsion, and lateral bending. EQV stress was observed around the distal screw contact in both C-LCP and D-LCP models, with D-LCP exhibiting lower EQV stress than C-LCP, particularly under axial compression. The D-LCP cases demonstrated less bone fracture displacement compared to C-LCP cases, providing valuable insights. Additionally, the bone stress in D-LCP revealed significantly lower levels compared to C-LCP.

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How to Cite
Moraksa, P., Wanchat, S., & Chantarapanich, N. (2024). Biomechanical evaluation of conventional locking compression plate and double locking compression plate combined with locking screw use to stabilize midshaft ulna fracture: A finite element study. Science, Engineering and Health Studies, 18, 24040007. https://doi.org/10.69598/sehs.18.24040007
Issue
Volume 18, 2024
Section
Engineering
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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