Cited by 30Magnesium Alloys: Properties and ApplicationsAdditive Manufacturing Materials and ProcessesBone Tissue Engineering Materials

Comprehensive review of additively manufactured biodegradable magnesium implants for repairing bone defects from biomechanical and biodegradable perspectives

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Wang, Zhengguang, Liu, Bingchuan, Yin, Bangzhao, Zheng, Yufeng, Tian, Yun, Wen, Peng·2022·Frontiers in Chemistry

Abstract

Bone defect repair is a complicated clinical problem, particularly when the defect is relatively large and the bone is unable to repair itself. Magnesium and its alloys have been introduced as versatile biomaterials to repair bone defects because of their excellent biocompatibility, osteoconductivity, bone-mimicking biomechanical features, and non-toxic and biodegradable properties. Therefore, magnesium alloys have become a popular research topic in the field of implants to treat critical bone defects. This review explores the popular Mg alloy research topics in the field of bone defects. Bibliometric analyses demonstrate that the degradation control and mechanical properties of Mg alloys are the main research focus for the treatment of bone defects. Furthermore, the additive manufacturing (AM) of Mg alloys is a promising approach for treating bone defects using implants with customized structures and functions. This work reviews the state of research on AM-Mg alloys and the current challenges in the field, mainly from the two aspects of controlling the degradation rate and the fabrication of excellent mechanical properties. First, the advantages, current progress, and challenges of the AM of Mg alloys for further application are discussed. The main mechanisms that lead to the rapid degradation of AM-Mg are then highlighted. Next, the typical methods and processing parameters of laser powder bed fusion fabrication on the degradation characteristics of Mg alloys are reviewed. The following section discusses how the above factors affect the mechanical properties of AM-Mg and the recent research progress. Finally, the current status of research on AM-Mg for bone defects is summarized, and some research directions for AM-Mg to drive the application of clinical orthopedic implants are suggested.

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Authors
Wang, Z., Liu, B., Yin, B., Zheng, Y., Tian, Y., & Wen, P.
Affiliations
  • Peking University Third Hospital (CN)
  • Tsinghua University (CN)
  • Peking University (CN)
Corresponding author
  • Tian, Yun
  • Wen, Peng
Venue
Frontiers in Chemistry
Published
2022-11-29
Volume
10
Pages
1066103-1066103
ISSN
2296-2646 (ISSN-L)
OpenAlex
W4310208911
Cited by
30
References
149
Citations by year
2026: 13 · 2025: 12 · 2024: 1 · 2023: 4
FWCI
1.06
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Chemistry (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Natural Science Foundation of China (Z181100001718195 2018YFE0104200 82172065 51875310 52175274)
Topics
  • Physical Sciences › Materials Science › Biomaterials › Magnesium Alloys: Properties and Applications
  • Physical Sciences › Engineering › Mechanical Engineering › Additive Manufacturing Materials and Processes
  • Physical Sciences › Engineering › Biomedical Engineering › Bone Tissue Engineering Materials
Keywords
magnesium alloys, biodegradable implants, bone defect repair, additive manufacturing, laser powder bed fusion, degradation control, mechanical properties, osteoconductivity, orthopedic implants, biodegradation mechanisms, patient-specific implants

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