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National Repository of Grey Literature 6 records found  Search took 0.01 seconds. 
Parametric study of acetabular cup migration
 Jírová, Jitka ; Micka, Michal ; Jíra, Josef ; Sosna, A. ; Pokorný, D.
Loosening and migration of acetabular cup into the pelvis belongs to the most serious therapeutical complications. Using computational model we have analyzed stress concentrations at the contact of artificial cup and bone tissue.
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The 2D FEM model of the hip joint endoprosthesis and the pelvis
 Micka, Michal ; Jírová, Jitka ; Hrubeš, B.
The 2D FEM model is made according to the X-ray slide of the hipjoint endoprosthesis in a surrounding of the acetabular cap. Theartificial cup is the BEZNOSKA type. Three materials titan,polyethylene, cortical bone are taken as elastic. The spongybone of the pelvis is taken as elastoplastic material.
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Stress analysis of human pelvic bone after THR cup implantation
 Jiroušek, Ondřej ; Jíra, J. ; Jírová, Jitka ; Kult, Jaroslav
Study of the possible mechanical reasons for the acetabularcup migration which is one of the main causes for total hipreplacement (THR) instability and leads to an early re-operation.
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Using Ansys FEM System for Solution of Nonlinear Problemsin Biomechanics
 Jiroušek, Ondřej ; Jíra, J. ; Jírová, Jitka ; Kult, J.
The contribution reports on problems solved by a Laboratoryof Biomechanics team using numerical FEM system Ansys.The first problem is a complex analysis of Swansons,sprosthesis of interphalangeal joint and its interactionwith phalangeal and metacarpal bone.
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Determination of ultimate strength of bones for the needof forensic medicine using computer tomography data
 Jiroušek, Ondřej ; Jírová, Jitka ; Matlach, R.
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Modelling of Strain State of Cementless Spherical Acetabular Cup
 Jírová, Jitka ; Jíra, Josef ; Micka, Michal
The paper deals with cementless acetabular cup - Beznoska type.This cup is made of 1 mm thick titanium covering and polyethylene inner layer. The subject of the research was to gain basic kmowledge of the behaviour of the composed structure using strain gauge measuring and 3-D FEM by applying ANSYS programme.
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