Friction of total hip replacements with different bearings and loading conditions

Metal‐on‐ultra‐high molecular weight polyethylene (UHMWPE) total hip replacements have been the most popular and clinically successful implants to date. However, it is well documented that the wear debris from these prostheses contributes to osteolysis and ultimate failure of the prosthesis, hence a...

Full description

Saved in:
Bibliographic Details
Published inJournal of biomedical materials research. Part B, Applied biomaterials Vol. 81B; no. 2; pp. 508 - 515
Main Authors Brockett, Claire, Williams, Sophie, Jin, Zhongmin, Isaac, Graham, Fisher, John
Format Journal Article
LanguageEnglish
Published Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.05.2007
Subjects
Biocompatible Materials
Biomechanical Phenomena
Ceramics
Friction
Hip Prosthesis
Humans
In Vitro Techniques
lubrication
Materials Testing - instrumentation
Materials Testing - methods
Metals
Polyethylenes
Stress, Mechanical
total hip replacement
Online AccessGet full text

Cover

More Information
Summary:Metal‐on‐ultra‐high molecular weight polyethylene (UHMWPE) total hip replacements have been the most popular and clinically successful implants to date. However, it is well documented that the wear debris from these prostheses contributes to osteolysis and ultimate failure of the prosthesis, hence alternative materials have been sought. A range of 28 mm diameter bearings were investigated using a hip friction simulator, including conventional material combinations such as metal‐on‐UHWMPE, ceramic‐on‐ceramic (CoC), and metal‐on‐metal (MoM), as well as novel ceramic‐on‐metal (CoM) pairings. Studies were performed under different swing‐phase load and lubricant conditions. The friction factors were lowest in the ceramic bearings, with the CoC bearing having the lowest friction factor in all conditions. CoM bearings also had low friction factors compared with MoM, and the trends were similar to CoC bearings for all test conditions. Increasing swing phase load was shown to cause an increase in friction factor in all tests. Increased serum concentration resulted in increased friction factor in all material combinations, except MoM, where increased serum concentration produced a significant reduction in friction factor. © 2006 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2006
Bibliography:EPSRC
ArticleID:JBM30691
ark:/67375/WNG-9T6W0CS2-R
istex:8EC9A56F5CE0A9FDE83620DA2E691877C1E09213
DePuy International
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ObjectType-Article-1
ObjectType-Feature-2
ISSN:1552-4973
1552-4981
DOI:10.1002/jbm.b.30691