Carlos Enrique González Rivera, Marco Antonio Loudovic Hernández Rodríguez, Melvyn Alvarez-Vera, Tomás Ramos Morales, José Felix Vilchez Cavazos, Osmel Perez Acosta, Ernesto Lorenzo Bonet, Luis Francisco Ramos de Valle, David Hinojosa Blandon
Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine 2022 SepTemporary antibiotic-loaded cement spacers are widely used for treating chronic periprosthetic hip infections. The aim of this study is to evaluate the short-term tribological performance of ultra-high-molecular-weight polyethylene (UHMWPE) and (60Co) gamma-irradiated cross-linked UHMWPE (XLPE) self-mated systems as frictional pairs for temporary total hip spacers. A three-axial hip joint simulator, FIME II, was used to test the UHMWPE and XLPE self-mated systems under variable load profiles. A fetal bovine serum solution was used as a lubricant. After simulation tests, wear measurements of damaged coupled surfaces were made with a coordinate measuring machine. Finally, surfaces were characterized with scanning electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, and nanoindentation tests. The mass loss test results for UHMWPE were 11.91 ± 3.43 mg for the cups and 4.57 ± 0.92 mg for the heads. Whereas, the results for XLPE showed a significant reduction, with mean mass loss values of 6.59 ± 0.14 mg for the cups and 2.82 ± 0.59 mg for the heads, suggesting the viability of the self-mated XLPE contact pair for a temporary total hip spacer.
Carlos Enrique González Rivera, Marco Antonio Loudovic Hernández Rodríguez, Melvyn Alvarez-Vera, Tomás Ramos Morales, José Felix Vilchez Cavazos, Osmel Perez Acosta, Ernesto Lorenzo Bonet, Luis Francisco Ramos de Valle, David Hinojosa Blandon. Preliminary tribological results of a new total temporary hip joint prosthesis spacer. Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine. 2022 Sep;236(9):1328-1339
PMID: 35959743
View Full Text