TY - JOUR
T1 - On the replacement of articular cartilage
T2 - The friction of PVA hydrogel layer in hip simulator test
AU - Nečas, David
AU - Yarimitsu, Seido
AU - Rebenda, David
AU - Shinmori, Hironori
AU - Vrbka, Martin
AU - Sawae, Yoshinori
AU - Murakami, Teruo
AU - Křupka, Ivan
N1 - Funding Information:
This work was supported by the Czech Science Foundation (grants no. 20-00483S and 22-02154S ). The research was further supported by JSPS KAKENHI Grant Number JP21H04535 . The authors thank F. Urban for his help with the experiments and the detailed analysis of the hydrogel exponential decay response.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2023/2
Y1 - 2023/2
N2 - 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.
AB - 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.
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U2 - 10.1016/j.triboint.2022.108100
DO - 10.1016/j.triboint.2022.108100
M3 - Article
AN - SCOPUS:85142870449
VL - 178
JO - Tribology International
JF - Tribology International
SN - 0301-679X
M1 - 108100
ER -