Customized mandibular reconstruction plates improve mechanical performance in a mandibular reconstruction model. Issue 4 (12th March 2017)

• Record Type: Journal Article
• Authors: Gutwald, Ralf; Jaeger, Raimund; Lambers, Floor M.
• Is Part Of: Computer methods in biomechanics and biomedical engineering. Volume 20:Issue 4(2017)
• Page Start: 426
• Page End: 435
• Publication Date: 2017-03-12
• Subjects: Mandibular reconstruction -- sensitivity analysis -- finite element analysis -- fatigue testing -- implant; Biomechanics -- Data processing -- Periodicals; Biomedical engineering -- Periodicals; Biomechanics -- Periodicals; Biomedical Engineering -- methods -- Periodicals; Computing Methodologies -- Periodicals; 612.7
• DOI: 10.1080/10255842.2016.1240788
• Languages: English
• ISSNs: 1025-5842

Abstract

Abstract: The purpose of this paper was to analyze the biomechanical performance of customized mandibular reconstruction plates with optimized strength. The best locations for increasing bar widths were determined with a sensitivity analysis. Standard and customized plates were mounted on mandible models and mechanically tested. Maximum stress in the plate could be reduced from 573 to 393 MPa (−31%) by increasing bar widths. The median fatigue limit was significantly greater ( p < 0.001) for customized plates (650 ± 27 N) than for standard plates (475 ± 27 N). Increasing bar widths at case-specific locations was an effective strategy for increasing plate fatigue performance.