Experimental and numerical study of cemented bone-implant interface behaviour

0353150 - ÚTAM 2011 RIV IT eng J - Článek v odborném periodiku
Kytýř, Daniel - Doktor, Tomáš - Jiroušek, Ondřej - Zlámal, Petr - Pokorný, D.
Experimental and numerical study of cemented bone-implant interface behaviour.
Frattura ed Integrita Strutturale. Roč. 15, č. 15 (2011), s. 5-13. ISSN 1971-8993
Grant CEP: GA ČR(CZ) GAP105/10/2305
Výzkumný záměr: CEZ:AV0Z20710524
Klíčová slova: bone-cement interface * computed tomography * hip simulator * crack detection
Kód oboru RIV: FI - Traumatologie, ortopedie
http://www.gruppofrattura.it/index.php?option=com_content&task=view&id=90&Itemid=284

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 the sample of pelvic bone with implanted cemented acetabular component. The hip contact force of required direction and magnitude was applied to the implant using a spherical femoral component head. The most unfavorable activity (downstairs walking) was simulated. The process of damage accumulation in the fixation was monitored by repeated scanning using high resolution micro Computed Tomography. Use of micro-focus source and large high-resolution flat panel detector allows investigation of structural changes and crack propagation both in the cement layer and the trabecular bone.
Trvalý link: http://hdl.handle.net/11104/0192472