Running-in friction of hip joint replacements can be significantly reduced:The effect of surface-textured acetabular cup

作     者：David NECAS Hatsuhiko USAMI Tatsuya NIIMI Yoshinori SAWAE Ivan KRUPKA Martin HARTL David NE?AS;Hatsuhiko USAMI;Tatsuya NIIMI;Yoshinori SAWAE;Ivan K?UPKA;Martin HARTL

作者机构：Faculty of Mechanical EngineeringBrno University of TechnologyBrno 61669Czech Republic Faculty of Science and TechnologyMeijo UniversityNagoya 468-8502Japan Kanefusa CorporationNagoya 480-0192Japan Faculty of EngineeringKyushu UniversityFukuoka 819-0395Japan 

出 版 物：《Friction》 (摩擦（英文版）)

年 卷 期：2020年第8卷第6期

页      面：1137-1152页

核心收录：

学科分类：1002[医学-临床医学] 100210[医学-外科学(含：普外、骨外、泌尿外、胸心外、神外、整形、烧伤、野战外)] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 10[医学] 

基　　金：The research was.carried out under the project JSPS/OF280,PE17046 with financial support from the Japan Society for the Promotion of Science.This research was also supported by the project FSI-S-17-4415 with financial support from the Ministry of Education,Youth and Sports of the Czech Republic(MEYS) 

主　　题：hip joint replacement friction texturing dimple longevity 

摘      要：Hip joint replacements represent the most effective way of treatment for patients suffering from joint *** the rapid improvement of implant materials over the last few decades,limited longevity associated with wear-related complications persists as the main ***,improved tribological perfor-mance is required in order to extend the service life of *** effect of surface texturing of ultra-high molecular weight polyethylene(UHMWPE)acetabular cup was investigated in the present *** tilling method was utilized for manufacturing the dimples with controlled diameter and depths on the contact surface of the *** experiments with four commercial femoral components and two model lubricants were *** main attention was paid to a coefficient of friction considering the differences between the original and the dimpled *** showed remarkable lowering of friction,in *** on the simulated human synovial fluid,friction was reduced by 40%(alumina ceramic),38.8%(zirconia toughened ceramic),25.5%(metal),and 9.9%(oxinium).In addition,the dimples helped to keep the friction stable without *** conclude,the paper brings a new insight into frictional behaviour of the hip replacements during running-in phase which is essential for overall implant *** is believed that proper surface texturing may rapidly improve the life quality of millions of patients and may lead to considerable financial savings.