AccScience Publishing / IJB / Online First / DOI: 10.36922/ijb.2388
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RESEARCH ARTICLE

A metamaterial bone plate for biofixation based on 3D printing technology

Guoqing Zhang1* ,  Junxin Li1 ,  Congcong Shangguan2 ,  Xiaoyu Zhou1 ,  Yongsheng Zhou1 ,  Aibing Huang3
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1 Department of Mechanical Design and Manufacturing, School of Mechanical and Electrical Engineering, Zhoukou Normal University, Zhoukou, Henan, China
2 Veterinary Laboratory, Shangzhou District Animal Health Supervision Institute, Shangluo, Shaanxi, China
3 Department of Orthopedics, Taizhou People’s Hospital Affiliated to Nanjing Medical University, Taizhou, Jiangsu, China
IJB, 2388 https://doi.org/10.36922/ijb.2388
Submitted: 8 December 2023 | Accepted: 6 March 2024 | Published: 30 April 2024
© 2024 by the Author(s). This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution 4.0 International License ( https://creativecommons.org/licenses/by/4.0/ )
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Abstract

Bone plate design and production methods are critical for producing metamaterial bone plates. This study investigated the design and development process of porous structures and metamaterial bone plates for biofixation applications. We designed the porous structures for bone plates using parametric modeling and fused them via the implicit surface fusion method. Likewise, we designed the metamaterial bone plate structure using reverse reconstruction and topological optimization. Thereafter, we utilized three-dimensional (3D) printing for producing and post-processing the metamaterial bone plate. We observed a reduced stress-shielding effect after topological optimization. Additionally, the resultant diamond porous structure maintained a high porosity under pressure. The 3D-printed bone plates and fillers had a bright porous surface, with clear pore structures and good connectivity. The assembly of the 3D-printed femur, bone plate, filler, and standardized screw indicated a good fitting, and the filler could be fixed by the inclined surface. Taken together, the findings of this study established the foundation for the prospective application of metamaterial bone plates in biofixation.

Keywords
3D printing
Bone plate
Topological optimization
Porous structure
Forming quality
Funding
The study was funded by the Henan Provincial Science and Technology Project (242102311240) and the Open Project of Guangxi Key Laboratory of Regenerative Medicine (Guizai reopened 202202).
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Conflict of interest
The authors declare no conflicts of interest.
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International Journal of Bioprinting, Electronic ISSN: 2424-8002 Print ISSN: 2424-7723, Published by AccScience Publishing
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