Dynamic three-dimensional finite element analysis of orbital trauma

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorCatholic University of Pelotas-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Basel-
Autor(es): dc.creatorMoura, L. B. [UNESP]-
Autor(es): dc.creatorJürgens, P. C.-
Autor(es): dc.creatorGabrielli, M. A.C. [UNESP]-
Autor(es): dc.creatorPereira Filho, V. A. [UNESP]-
Data de aceite: dc.date.accessioned2022-08-04T22:10:29Z-
Data de disponibilização: dc.date.available2022-08-04T22:10:29Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2021-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.bjoms.2020.09.021-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/221986-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/221986-
Descrição: dc.descriptionThis study comprises a dynamic finite element (FE) analysis of the mechanisms of orbital trauma, specifically buckling and hydraulic theories. A digital model of the orbital cavity - including the eyeball, fatty tissue, extraocular muscles, and the bone orbit – was created from magnetic resonance imaging and computed tomographic data from a real patient. An impactor hit the FE model following two scenarios: one was a hydraulic mechanism for direct impact to the eyeball and the other a buckling mechanism for direct impact over the infraorbital rim. The first principal stress was calculated to determine the stress distribution over the orbital walls. The FE model presented more than 900,000 elements and time of simulation was 4.8 milliseconds (ms) and 0.6 ms, for the hydraulic and buckling mechanisms, respectively. The stress distribution in the hydraulic mechanism affected mainly the medial wall with a high stress area of 99.08 mm2, while the buckling mechanism showed a high stress area of 378.70 mm2 in the orbital floor. The presence of soft tissue absorbed the energy, especially in the hydraulic mechanism. In conclusion, the applied method of segmentation allowed the construction of a complete orbital model. Both mechanisms presented results that were similar to classic experiments. However, the soft tissue in the hydraulic mechanism absorbed the impact, demonstrating its role in orbital pathophysiology.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionCatholic University of Pelotas-
Descrição: dc.descriptionSchool of Dentistry São Paulo State University (Unesp)-
Descrição: dc.descriptionDepartment of Cranio-Maxillofacial Surgery University Hospital Basel University of Basel-
Descrição: dc.descriptionSchool of Dentistry São Paulo State University (Unesp)-
Descrição: dc.descriptionFAPESP: 2015/04521-0;-
Descrição: dc.descriptionFAPESP: 2016/01445-4-
Formato: dc.format905-911-
Idioma: dc.languageen-
Relação: dc.relationBritish Journal of Oral and Maxillofacial Surgery-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectFinite Element Analysis-
Palavras-chave: dc.subjectOrbit-
Palavras-chave: dc.subjectOrbital fractures-
Título: dc.titleDynamic three-dimensional finite element analysis of orbital trauma-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.