Geometrical Structure for Endoprosthesis Surface Lubrication and Wear Prognosis

Abstract:

It can be stated that over the last ten years in the European Union, the number of bone fractures caused by osteoarthritis has increased twofold. More than 100,000 hip or knee joints in total were implanted in Germany during one year. Within ten years, 5% of them have failed by aseptic loosening.The non-invasive determination of friction forces and control of their values during lubrication of cartilage cells on the superficial layer of human joint surfaces before implantation has a significant but not sufficient impact on the observation of the early abrasive wear of the cartilage joint and development of osteoporosis. From this fact was drawn the inspiration for the performed investigations related to the endoprosthesis surface parameters because knowledge of the roughness of prosthesis surfaces and friction forces and their control methods permits provision of a necessary standard deviation of the gap height and finally information about the implantation possibility. This paper has been prepared based on the objective of European Project UE Grant IRSES,612593, 2013-2016 to represent the methodology and goal of the idea described in and make a wider discussion possible on this subject for further developments during the realization.

• Periodical: Solid State Phenomena (Volume 251)
• Pages: 206-211
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.251.206
• Online since: July 2016
• Authors: Krzysztof Wierzcholski*
• Keywords: Endoprosthesis, Gap Height, Measurements, Random Prognosis, Surface, Wear

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DOI: 10.1007/978-1-4612-3450-0

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