2009
DOI: 10.1590/s1413-78522009000400002
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Análise fotoelástica de parafuso de sistema de fixação vertebral

Abstract: INTRODUÇÃO: A fotoelasticidade é utilizada para avaliar as tensões/deformações produzidas nos materiais fotoelásticos, quando submetidos a determinado carregamento, através da observação de efeitos óticos. O desempenho do parafuso e as funções mecânicas estão diretamente relacionados com a qualidade da fixação dos parafusos nas vértebras. A fotoelasticidade é uma ferramenta importante para realizar estudos comparativos desta natureza. OBJETIVO: O objetivo deste estudo foi comparar por meio da fotoelasticidade,… Show more

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Cited by 1 publication
(2 citation statements)
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“…Thus, with increased pullout strength, the shear stress became more critical, thus there is an increased tendency to loosen the screw. This conclusion is consistent with the research of Fakhouri et al 17 . Regardless the amount of force applied, it was found that the values of shear stress on the 5.0 mm screw were higher than those for the 6.2 mm screw.…”
Section: Discussionsupporting
confidence: 93%
See 1 more Smart Citation
“…Thus, with increased pullout strength, the shear stress became more critical, thus there is an increased tendency to loosen the screw. This conclusion is consistent with the research of Fakhouri et al 17 . Regardless the amount of force applied, it was found that the values of shear stress on the 5.0 mm screw were higher than those for the 6.2 mm screw.…”
Section: Discussionsupporting
confidence: 93%
“…This conclusion is consistent with the research of Fakhouri et al . 17 Regardless the amount of force applied, it was found that the values of shear stress on the 5.0 mm screw were higher than those for the 6.2 mm screw. These results can be explained by geometric and size differences of the screws.…”
Section: Discussionmentioning
confidence: 91%