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National Repository of Grey Literature 4 records found  Search took 0.01 seconds. 
Comparison of the computational and experimental modelling results of the hip joint endoprosthesis behaviour under pressing on the stem
 Fuis, Vladimír ; Hlavoň, Pavel
The paper is concerned with the comparison of the computational and experimental results of the hip joint endoprosthesis ceramic head and stem cone self-adhesive connection. There were measured the tangential strain on the lower part of the head's sphere and vertically head displacement. The measured shape deflections from ideal cone shapes were implemented to the FEM model. The comparison of the computational and experimental data were realised for variants with the smooth and teethless stem.
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Analysis of the measured production inaccuracies of the contact areas of the hip joint endoprosthesis parts
 Fuis, Vladimír
In one hospital of the Czech Republic, more than 1 % of applied endoprostheses had to be reoperated. That is why the state of stress and the reliability of ceramic heads of total endoprosthesis is being intensively analysed by means of computational modelling. The production inaccuracies of the cone contact joint of the head and the stem is measured on the 3D device. Measured values are input to the computational modelling of the head stress analysis.
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Experiences of the production inaccuracies measuring on the contact areas of the hip joint endoprosthesis stem and the head and its modelling
 Fuis, Vladimír ; Hlavoň, P.
The paper presents the experiences of the mesuaring and modelling of the production inaccuracies of the cone contact junction of the stem and the head of the hip joint endoprosthesis.
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Analysis of real production inaccuracies on the contact cone joint of head and stem
 Fuis, Vladimír
Ceramic head reliability evaluation is significantly influenced by the factors that can allow increasing of the ten-sile stress in analysed body. Previous study eventuates that the production inaccuracies of contact cone joint of the head and the stem can significantly increase the tensile stress and decrease the reliability of whole implant. Paper deals with the problem of measuring real cone shape deflections on the different measuring devices.
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