Early Defect Detection of Acetabular Implants

0377535 - ÚTAM 2013 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Kytýř, Daniel - Jiroušek, Ondřej - Zlámal, Petr - Doktor, Tomáš - Jandejsek, I.
Early Defect Detection of Acetabular Implants.
Engineering Mechanics 2012 - CD ROM. Prague: ITAM AS CR, 2012 - (Náprstek, J.; Fischer, C.), s. 825-834. ISBN 978-80-86246-40-6.
[Engineering Mechanics 2012 /18./. Svratka (CZ), 14.05.2012-17.05.2012]
Grant CEP: GA ČR(CZ) GAP105/10/2305
Institucionální podpora: RVO:68378297
Klíčová slova: bone-cement interface * computed tomography * crack detection * hip simulator
Kód oboru RIV: FI - Traumatologie, ortopedie
http://www.engmech.cz/

The paper is focused on possibilities of modern X-ray detectors and micro-focus X-ray source for investigation of early degradation processes of acetabular implants. To simulate the most adverse activity (downstairs walking) a hip joint simulator was developed. The experimental setup was designed for cyclic loading of polyethylene acetabular cup implanted into the human pelvic bone and fixed by commercial polymethyl methacrylate bone cement. To predict the bone degradation numerical analysis of detailed three-dimensional model of the acetabular cup and the cement mantle implanted in a bone block was performed. Using large area flat panel detector and microfocus X-ray source it is possible to investigate micro-damage propagation and detect early defect in the bone-implant interface.
Trvalý link: http://hdl.handle.net/11104/0209666