首页|Additive manufacturing of porous magnesium alloys for biodegradable orthopedic implants:Process,design,and modification

Additive manufacturing of porous magnesium alloys for biodegradable orthopedic implants:Process,design,and modification

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Biodegradable magnesium(Mg)alloys exhibit excellent biocompatibility,adequate mechanical properties,and osteogenic effect.They can contribute to complete recovery of damaged tissues without concerns about a second surgery and have achieved clinical applications in orthopedic and cardiovascular fields.Porous scaffolds can provide functions such as bone integration and adjustable mechanical properties,thus widely used for bone repair.Additive manufacturing(AM)offers the advantages of design freedom and high precision,enabling the reliable production of porous scaffolds with customized structures.The combination of biodegradable Mg alloys,porous scaffolds,and AM processes has created tremendous opportunities for the precision treatment of bone defects.This article reviews the current development in the additive manufacturing process and design of Mg alloy biodegradable orthopedic implants,fo-cusing on chemical compositions,structural design,surface treatment,and their effects on mechanical properties,degradation behavior,and biocompatibility.Finally,the future perspective of porous Mg alloy biodegradable orthopedic implants is proposed.

Biodegradable magnesium alloysAdditive manufacturingLaser powder bed fusionOrthopedic implantsPorous structure designDegradation behavior

Bo Peng、Haojing Xu、Fei Song、Peng Wen、Yun Tian、Yufeng Zheng

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State Key Laboratory of Tribology in Advanced Equipment,Tsinghua University,Beijing 100084,China

Department of Mechanical Engineering,Tsinghua University,Beijing 100084,China

Institute for Precision Medicine Tsinghua University,Beijing Tsinghua Changgung Hospital,Beijing 102218,China

Department of Orthopedics,Peking University Third Hospital,Beijing 100191,China

Department of Materials Science and Engineering,Peking University,Beijing 100871,China

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国家重点研发计划国家自然科学基金国家自然科学基金国家自然科学基金Tsinghua-Toyota Joint Research Fund,the Tsinghua Precision Medicine FoundationCross-Strait Tsinghua Research Institute Fund

2018YFE0104200521752748217206551875310

2024

材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子:0.657
ISSN:1005-0302
年,卷(期):2024.182(15)
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