|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Biological Materials Science
||A Novel In Vitro Fatigue Test for Biomimetic Implants Made of UHMWPE
||Marina Knyazeva, Dario Porchetta, Ronja Scholz, Frank Walther
|On-Site Speaker (Planned)
With the aim to reduce the amount of in vivo studies for the determination of the long-term durability of ultra-high molecular weight polyethylene (UHMWPE) under fatigue loading in a biological environment, a novel in vitro test procedure using fatigue load increase tests with superimposed environmental loading was developed. The analysis involved the synergic implementation of additional analytical techniques for a complete understanding of the material behavior in the bio simulative experimental setup. The mechanical as well as physio-chemical material alterations occurring in the material under cyclical loading were investigated by the combined implementation of computed tomography scanning in conjunction with Fourier-transform attenuated total reflectance infrared spectroscopy, as well as indentation tests determining the sample´s Young modulus before and after the fatigue test. All tests involved the comparison between ordinary samples and simulated body fluid aged ones, the influence of the degrading environment is reported.
||Planned: Supplemental Proceedings volume