High resolution finite element modeling of cemented bone-implant interface using X-ray microtomography
- NázevTitle
- High resolution finite element modeling of cemented bone-implant interface using X-ray microtomographyHigh resolution finite element modeling of cemented bone-implant interface using X-ray microtomography
- Druh výsledkuResult type
- Příspěvek ve sborníkuProceedings paper
- AutořiAuthors
- D. Kytýř, O. Jiroušek, P. Zlámal, D. Pokorný, J. Dammer
- Časopis / citaceJournal / citation
- In: Proceedings of 9th International Symposium on Computer methods in Biomechanics and Biomedical Engineering. Valencia: Universidad Politécnica de Valencia, 2010, pp. 467-471. ISBN 978-0-9562121-3-9.
- JazykLanguage
- eng
- RIVRIV
- RIV/68407700:21260/10:00173562!RIV11-MSM-21260___
- ProjektProject
- Hybridní systém měření termomechanických parametrů pokročilých materiálů a konstrukcí v mezních stavech namáhámíHybrid measurement system of thermo-mechanical parameters of advanced materials and structures in limiting loading states; Rozvoj metod návrhu a provozu dopravních sítí z hlediska jejich optimalizaceDevelopment of methods of design and operation of transport network from the point of view of their optimization
AbstraktAbstract
The aim of the research was to investigate the cemented bone-implant interface behavior. The main problems (cement layer degradation and bone-cement interface debonding) during physiological loading conditions have been investigated using a custom hip simulator. The experimental setup was designed to allow cyclic loading of a sample of pelvic bone with implanted cemented acetabular component. The most unfavorable activity (downstairs walking) was simulated in two million cycles with 4Hz frequency. The process of damage accumulation in cement fixation was monitored by repeated scanning using high resolution micro-focus X-ray Computed Tomography. Use of micro-focus source and large high resolution flat panel detector allows investigation of structural changes as well as development of full-scale micro-structural models. 3D high resolution finite element model was reconstructed from the microCT data. The FE model is suitable for prediction of bone-implant interface behaviour.
The aim of the research was to investigate the cemented bone-implant interface behavior. The main problems (cement layer degradation and bone-cement interface debonding) during physiological loading conditions have been investigated using a custom hip simulator. The experimental setup was designed to allow cyclic loading of a sample of pelvic bone with implanted cemented acetabular component. The most unfavorable activity (downstairs walking) was simulated in two million cycles with 4Hz frequency. The process of damage accumulation in cement fixation was monitored by repeated scanning using high resolution micro-focus X-ray Computed Tomography. Use of micro-focus source and large high resolution flat panel detector allows investigation of structural changes as well as development of full-scale micro-structural models. 3D high resolution finite element model was reconstructed from the microCT data. The FE model is suitable for prediction of bone-implant interface behaviour.