Journal
COMPOSITES PART B-ENGINEERING
Volume 233, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2022.109668
Keywords
A; polymer-matrix composites (PMCs); A; Carbon fibre; C; Computational modelling; C; Finite element analysis (FEA)
Funding
- National Research Foundation of Korea (NRF) - Korean government (MSIP) [NRF-2020R1A2C2007720]
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In this study, 3D-printed composite bone plates with different Young's moduli were designed and their effects on long-bone fractures were analyzed. A biphasic mechano-regulation algorithm was developed to analyze bone-healing patterns, and the results showed that the composite bone plate with a Young's modulus of 40 GPa exhibited the best healing performance.
Metallic implants with high Young's moduli are used to treat long-bone fractures; however, they cause stress shielding and prevent bones from attaining their original strength. Thus, flexible composite implants have been designed to enhance tissue development without stress shielding. Herein, 3D-printed composite bone plates with different Young's moduli were designed, and their effects on 3D models of long-bone fractures were analysed. A biphasic mechano-regulation algorithm, coupled with cell diffusion and tissue phenotype activities, was developed using a Python script to analyse bone-healing patterns for 112 days after surgery. A composite bone plate (Young's modulus, 40 GPa) showed the best healing performance (100%), compared with a stainless-steel bone plate (70%). Further, cell and tissue development using bone plates with different Young's moduli under different loading conditions are presented.
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