Shape deviations of the contact areas of the total hip replacement

0372373 - ÚT 2012 RIV DE eng C - Konferenční příspěvek (zahraniční konf.)
Fuis, Vladimír - Koukal, M. - Florian, Z.
Shape deviations of the contact areas of the total hip replacement.
Mechatronics - Recent Technological And Scientific Advances. Berlin: Springer, 2011, s. 203-212. ISBN 978-3-642-23243-5.
[International Conference Mechatronics 2011 /9./. Varšava (PL), 21.09.2011-24.09.2011]
Výzkumný záměr: CEZ:AV0Z20760514
Klíčová slova: hip joint endoprosthesis * shape deviations * wear
Kód oboru RIV: BO - Biofyzika

One type of total hip replacement function loss is acetabular cup loosening from the pelvic bone. This article examines manufacture deviations as one of the possible reasons for this kind of failure. Both dimensions and ge-ometry manufacturing deviations of ceramic head and polyethylene cup were analyzed. We find that deviations in the variables analysed here af-fect considered values of contact pressure and frictional moment. Further-more, contact pressure and frictional moment are quantities affecting re-placement success and durability.
Trvalý link: http://hdl.handle.net/11104/0205706