Customized mandibular reconstruction plates improve mechanical performance in a mandibular reconstruction model

Ralf Gutwald, Raimund Jaeger and Floor M. Lambers

Computer Methods in Biomechanics and Biomedical Engineering, 2017, vol. 20, issue 4, 426-435

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.

Date: 2017
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DOI: 10.1080/10255842.2016.1240788

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