ArticleJournal of orthopaedic surgery and research2017
Comparison of conventional reconstruction plate versus direct metal laser sintering plate: an in vitro mechanical characteristics study.
Article in Journal of orthopaedic surgery and research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Failure analysis and design improvement of retrieved plates from revision surgery.Journal of orthopaedic translation · 2024Article
- Design considerations for patient-specific bone fixation plates: a literature review.Medical & biological engineering & computing · 2023Review
- Experimental testing of fracture fixation plates: A review.Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine · 2022Review
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Authors and funding
6 authors.
Funding
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Abstract
backgroundAdditive manufacturing (AM) technology has helped to achieve several advances in the medical field, particularly as far as fabrication of implants is concerned. But the application of direct metal laser sintering (DMLS) bone plate is quite limited due to the indeterminate mechanical property. The purposes of this study were to characterize the biomechanical properties of the polished DMLS reconstruction plate and to compare these with the properties of commonly applied implants and to find whether the mechanical performance of DMLS plate meets the requirements for clinical application.
methodsIn this study, we fabricated two groups of plates by DMLS and computer numerical control (CNC) techniques. After that, we polished all samples and investigated their roughness, components, hardness, static bending, and torsional performance. Moreover, cyclic bending tests and fractographic analysis were conducted. Statistical comparisons of the group by means of monotonic test data were made, and a qualitative comparison was performed to assess failures in fatigue.
resultsWe found no differences in surface roughness or components after polishing, but the DMLS plate hardness is 7.42% (p < 0.01) greater than that of the CNC plates. Compared with the CNC plates, the DMLS plate static bending and torsional performance were significantly greater. In a dynamic test, the DMLS plates survived 10
conclusionsThese results indicate that the mechanical performances of the DMLS plate are stronger, and the strength under fatigue tests is sufficient. DMLS implant has great potential and may become a better choice for clinical use in the future. However, direct application of these AM instruments in the operating room requires further validation including animal and clinical experiment.
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