000001659 001__ 1659
000001659 005__ 20141118153459.0
000001659 04107 $$acze
000001659 046__ $$k2007-05-14
000001659 100__ $$aKytýř, D.
000001659 24500 $$aMUSCLE UNBALANCE INFLUENCE TO HIP IMPLANT MIGRATION

000001659 24630 $$n13$$pEngineering Mechanics 2007
000001659 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Prague
000001659 506__ $$arestricted
000001659 520__ $$2eng$$aIn general all orthopaedic operations may cause the change of muscle balance. This unbalance various not only range of movement but also the loading vector during the movement. In case of hemiarthroplasty when the new joint is created by femoral replacement and intact acetabulum could be the unbalance very dangerous. Migration of the implant head after hemiarthoplasty is the problem which is observed to nearly at all patients. Muscle unbalance and shape of acetabulum are the two main problems solved by numerical analysis of hip joint FE model. The paper deals with numerical analysis of hip joint surgery that effects changes of acetabulum stress field and implant migration in acetabulum area. Pelvic bone geometry was obtained from computer tomography by semiautomatic generation. The numerical analysis compares shapes and peak values of stress field in acetabulum area. Ultimate values of first principal stress, third principal stress and total displacements were used as reference magnitudes and confront with after-surgery exploration.

000001659 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000001659 653__ $$a

000001659 7112_ $$aEngineering Mechanics 2007$$cSvratka (CZ)$$d2007-05-14 / 2007-05-17$$gEM2007
000001659 720__ $$aKytýř, D.$$iJíra, J.$$iVyčichl, J.$$iJírová, J.
000001659 8560_ $$ffischerc@itam.cas.cz
000001659 8564_ $$s979395$$uhttps://invenio.itam.cas.cz/record/1659/files/074-Kytyr-PT.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000001659 962__ $$r1585
000001659 980__ $$aPAPER