Pull-out resistance of connected K-wires for osteosynthesis: development of a numerical model

Samuel Berthe, Nadia Bahlouli, Massamaesso Bilasse and Philippe Liverneaux

Computer Methods in Biomechanics and Biomedical Engineering, 2025, vol. 28, issue 7, 1057-1065

Abstract: A predictive finite element model was developed to investigate the best configuration of a fixation pins system consisting of two K-wires inserted in a synthetic model (Sawbones®) at different angles and secured to a connecting rod. Two key parameters were considered to determine the best configuration delivering the higher pull-out strength and lower pull-out length: the diameter and insertion angle. Results show that as the diameter and insertion angle increased, the pull-out force increased, while the pull-out length decreased. Results are successfully compared with available experimental data in literature. This model can be used as an alternative to experimental study.

Date: 2025
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DOI: 10.1080/10255842.2024.2310729

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