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The role of poroelasticity on the biomechanics of the intervertebral disc : a f...
Castro, André; Flores, Paulo; Completo, António; Alves, J. L.The major goal for the present work is to evaluate a biomimetic Finite Element (FE) model of the Intervertebral Disc (IVD). Recent studies have emphasized the importance of an accurate biomechanical modeling of the IVD, which is a highly complex biphasic medium. A novel biphasic poroelastic model was implemented and coupled with Wilson’s model (2005) for biphasic osmotic swelling behavior. Numerical tests were ...
Estudo biomecânico da artroplastia do cotovelo com prótese total não-constrangi...
Pereira, Joana; Completo, António; Fonseca, Fernando; Miranda, António; Ramos, António; Relvas, CarlosResumo não disponível.
Strain shielding in distal femur after patellofemoral arthroplasty under differ...
Meireles, Susana; Completo, António; Simões, José A.; Flores, PauloStrain shielding, a mechanical effect occurring in structures combining stiff with more flexible materials, is considered to lead to a reduction in bone density in bone surrounding the implant and be related with weakness of the implant fixation, which leads to implant loosening. Several studies describe a significant decrease in postoperative bone mineral density adjacent to the joint implants, which can compr...
Development of a planar multi-body model of the human knee joint
Machado, Margarida F.; Flores, Paulo; Claro, José Carlos Pimenta; Ambrósio, Jorge; Silva, Miguel; Completo, António; Lankarani, Hamid M.The aim of this work is to develop a dynamic model for the biological human knee joint. The model is formulated in the framework of multibody systems methodologies, as a system of two bodies, the femur and the tibia. For the purpose of describing the formulation, the relative motion of the tibia with respect to the femur is considered. Due to their higher stiffness compared to that of the articular cartilages, ...
Estudo numérico e experimental da biomecânica da prótese do joelho
Completo, António Manuel GodinhoNesta tese foi objectivo estudar os aspectos biomecânicos da prótese do joelho e a problemática da artroplastia do joelho, nomeadamente a sua revisão. Para o efeito, diversos estudos biomecânicos sobre hastes da artroplastia total do joelho foram realizados através de modelos numéricos e experimentais. Foi seleccionada a prótese do joelho P.F.C. Sigma Knee System como elemento para a realização do estudo compar...
Haste press-fit recta versus curva na revisão do componente femoral na ATJ
Completo, António; Simões, José António; Fonseca, FernandoResumo não disponível.
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