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3D printing metal implants in orthopedic surgery: Methods, applications and future prospects
Meng Meng1,2, Jinzuo Wang1,2, Huagui Huang1,2
1Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian, PR China.
Journal of Orthopaedic Translation
|September 7, 2023
Summary
Three-dimensional (3D) printing enables personalized orthopedic metal implants, improving patient outcomes and reducing recovery times. This technology offers precise customization for complex orthopedic procedures, paving the way for future advancements.
Area of Science:
- Orthopedic Surgery
- Biomaterials Engineering
- Additive Manufacturing
Background:
- Conventional orthopedic implants lack customization for patient-specific anatomy and defect characteristics.
- Additive manufacturing (3D printing) offers precise fabrication of complex structures for personalized implants.
Purpose of the Study:
- To systematically review literature on 3D printed orthopedic metal implants over the past decade.
- To summarize the properties and clinical applications of 3D printed metal implants.
- To discuss future potential and improvements in the field.
Main Methods:
- Systematic literature review of PubMed and Web of Science databases.
- Inclusion of animal, cellular, and clinical studies.
- Analysis of 3D printing methods, biometals, implant properties, and clinical outcomes.
Main Results:
- 3D printing allows precise, patient-specific orthopedic implants using CT/MRI data.
- Custom implants enhance biocompatibility, osseointegration, and reduce stress-shielding.
- Advantages include lower cost, faster production, and improved surgical outcomes, though material and regulatory challenges remain.
Conclusions:
- 3D printed orthopedic implants offer personalization, promote osseointegration, and have short production cycles.
- Advancements in software, materials, and regulations will expand their application in orthopedic surgery.
- The technology is crucial for precision, intelligence, and personalization in future orthopedic treatments.
