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dc.contributor.authorTelfer, Scott
dc.contributor.authorErdemir, Ahmet
dc.contributor.authorWoodburn, James
dc.contributor.authorCavanagh, Peter R
dc.description.abstractIntegration of patient-specific biomechanical measurements into the design of therapeutic footwear has been shown to improve clinical outcomes in patients with diabetic foot disease. The addition of numerical simulations intended to optimise intervention design may help to build on these advances, however at present the time and labour required to generate and run personalised models of foot anatomy restrict their routine clinical utility. In this study we developed second-generation personalised simple finite element (FE) models of the forefoot with varying geometric fidelities. Plantar pressure predictions from barefoot, shod, and shod with insole simulations using simplified models were compared to those obtained from CT-based FE models incorporating more detailed representations of bone and tissue geometry. A simplified model including representations of metatarsals based on simple geometric shapes, embedded within a contoured soft tissue block with outer geometry acquired from a 3D surface scan was found to provide pressure predictions closest to the more complex model, with mean differences of 13.3 kPa (SD 13.4), 12.52 kPa (SD 11.9) and 9.6 kPa (SD 9.3) for barefoot, shod, and insole conditions respectively. The simplified model design could be produced in <1 h compared to >3 h in the case of the more detailed model, and solved on average 24% faster. FE models of the forefoot based on simplified geometric representations of the metatarsal bones and soft tissue surface geometry from 3D surface scans may potentially provide a simulation approach with improved clinical utility, however further validity testing around a range of therapeutic footwear types is required.en_US
dc.publisherELSEVIER SCI LTDen_US
dc.relation.ispartofjournalJournal of Biomechanicsen_US
dc.subject.fieldofresearchBiomedical Engineeringen_US
dc.subject.fieldofresearchMechanical Engineeringen_US
dc.subject.fieldofresearchHuman Movement and Sports Sciencesen_US
dc.subject.keywordsScience & Technologyen_US
dc.subject.keywordsLife Sciences & Biomedicineen_US
dc.titleSimplified versus geometrically accurate models of forefoot anatomy to predict plantar pressures: A finite element studyen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Articlesen_US
dcterms.bibliographicCitationTelfer, S; Erdemir, A; Woodburn, J; Cavanagh, PR, Simplified versus geometrically accurate models of forefoot anatomy to predict plantar pressures: A finite element study, Journal of Biomechanics, 2016, 49 (2), pp. 289-294en_US
gro.hasfulltextNo Full Text
gro.griffith.authorWoodburn, Jim

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