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Stress-dependent design and optimization methodology of gradient porous implant and application in femoral stem

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  • Changning Sun
  • Jianfeng Kang
  • Ling Wang
  • Zhongmin Jin
  • Chaozong Liu
  • Dichen Li

Abstract

Gradient porous structure made by additive manufacturing (AM) technology is potential to improve the long-term stability of orthopaedic implants through bone ingrowth while maintaining mechanical safety. In this study, a parametrical optimization methodology for the customized gradient porous implants was developed based on a stress-dependent design algorithm. Clinical requirements and manufacturing capabilities of AM were considered in the design procedure. A femoral stem with a minimum bone loss proportion of 2.4% by optimizing the control parameters. This study provided a feasible and flexible design approach for the customized implant with gradient porous structure or material components.

Suggested Citation

  • Changning Sun & Jianfeng Kang & Ling Wang & Zhongmin Jin & Chaozong Liu & Dichen Li, 2023. "Stress-dependent design and optimization methodology of gradient porous implant and application in femoral stem," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 26(11), pages 1308-1319, August.
    • Handle: RePEc:taf:gcmbxx:v:26:y:2023:i:11:p:1308-1319
    DOI: 10.1080/10255842.2022.2115291
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