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Developing a Biomechanical Testing Setup of the Pelvis-Part I: Computational Design of Experiments.
Soliman, Ahmed; Ricci, Pierre-Louis; Kedziora, Slawomir; Kelm, Jens; Gerich, Torsten; Maas, Stefan.
Afiliação
  • Soliman A; Department of Engineering, Faculty of Science, Technology and Medicine (FSTM), University of Luxembourg, 6, Rue Richard Coudenhove-Kalergi, Luxembourg L-1359, Luxembourg.
  • Ricci PL; Department of Engineering, Faculty of Science, Technology and Medicine (FSTM), University of Luxembourg, 6, Rue Richard Coudenhove-Kalergi, Luxembourg L-1359, Luxembourg.
  • Kedziora S; Department of Engineering, Faculty of Science, Technology and Medicine (FSTM), University of Luxembourg, 6, Rue Richard Coudenhove-Kalergi, Luxembourg L-1359, Luxembourg.
  • Kelm J; Chirurgisch-Orthopädisches Zentrum Illingen, Rathausstraße 2, Illingen 66557, Germany.
  • Gerich T; Centre Hospitalier de Luxembourg, 4, rue Barble, Luxembourg L-1210, Luxembourg e-mail: gerich.torsten@chl.lu.
  • Maas S; Department of Engineering, Faculty of Science, Technology and Medicine (FSTM), University of Luxembourg, 6, Rue Richard Coudenhove-Kalergi, Luxembourg L-1359, Luxembourg.
J Biomech Eng ; 145(10)2023 10 01.
Article em En | MEDLINE | ID: mdl-37199569
ABSTRACT
Biomechanics of the human pelvis and the associated implants are still a medical and engineering debated topic. Today, no biomechanical testing setup is dedicated to pelvis testing and associated reconstructive implants with accepted clinical relevance. This paper uses the computational experiment design procedure to numerically design a biomechanical test stand that emulates the pelvis physiological gait loading. The numerically designed test stand reduces the 57 muscles and joints' contact forces iteratively to only four force actuators. Two hip joints' contact forces and two equivalent muscle forces with a maximum magnitude of 2.3 kN are applied in a bilateral reciprocating action. The stress distribution of the numerical model of the developed test stand is very similar to that of the numerical model of the pelvis with all 57 muscles and joint forces. For instance, at the right arcuate line, the state of stress is identical. However, at the location of superior rami, there is a deviation ranging from 2% to 20% between the two models. The boundary conditions and the nature of loading adopted in this study are more realistic regarding the clinical relevance than state-of-the-art. The numerically developed biomechanical testing setup of the pelvis in this numerical study (Part I) was found to be valid for the experimental testing of the pelvis. The construct of the testing setup and the experimental testing of an intact pelvis under gait loading are discussed in detail in Part II Experimental Testing.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Pelve / Articulação do Quadril Limite: Humans Idioma: En Revista: J Biomech Eng Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Luxemburgo

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Pelve / Articulação do Quadril Limite: Humans Idioma: En Revista: J Biomech Eng Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Luxemburgo