Kontaktujte nás | Jazyk: čeština English
Název: | On the replacement of articular cartilage: The friction of PVA hydrogel layer in hip simulator test | ||||||||||
Autor: | Nečas, David; Yarimitsu, Seido; Rebenda, David; Shinmori, Hironori; Vrbka, Martin; Sawae, Yoshinori; Murakami, Teruo; Křupka, Ivan | ||||||||||
Typ dokumentu: | Recenzovaný odborný článek (English) | ||||||||||
Zdrojový dok.: | Tribology International. 2023, vol. 178 | ||||||||||
ISSN: | 0301-679X (Sherpa/RoMEO, JCR) | ||||||||||
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DOI: | https://doi.org/10.1016/j.triboint.2022.108100 | ||||||||||
Abstrakt: | The present study focuses on friction evaluation of the polyvinyl alcohol (PVA) hydrogel layer, an anticipative material for cartilage replacement. The experiments were carried out in a ball-in-socket configuration using a pendulum hip simulator. The friction coefficients of ceramic-on-hydrogel pairs were compared with those of commercial implants (metal/ceramic heads vs UHMWPE, HXPE and metal/ceramic sockets). The effects of hydrogel ageing and hydration were studied, among others. The use of PVA inserts caused up to 98% reduction in friction coefficient compared to original hip pairs. The application of PVA for local or even complete cartilage replacement seems to be an outstanding opportunity in implantology. | ||||||||||
Plný text: | https://www.sciencedirect.com/science/article/pii/S0301679X22006715 | ||||||||||
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