Toggle Main Menu Toggle Search

Open Access padlockePrints

Wear tests of orthopaedic biopolymers with the biolubricant augmented by a visco-supplement

Lookup NU author(s): Professor Tom Joyce

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.


Abstract

The lubricant in which both natural and replacement joints must operate is synovial fluid. In vitro wear tests of such prostheses and their biomaterials generally employ a lubricant based on bovine serum, as this contains proteins that have a critical impact in reproducing clinically valid wear rates in the laboratory. However, it is also recognised that bovine serum is not identical to synovial fluid, a key difference being that synovial fluid includes hyaluronic acid but bovine serum does not. Few clinically valid wear tests employing a lubricant that includes hyaluronic acid have been undertaken, and the results have been contradictory. To try and inform these results, a series of wear tests were undertaken using a clinically validated wear screening device to investigate the influence of the addition of hyaluronic acid to the lubricant on the wear rates on two orthopaedic biopolymers. When a clinically used hyaluronic acid solution, Ostenil®, was added to a dilute bovine serum lubricant, it was found that wear factors were not greatly changed compared with dilute bovine serum alone. Additional wear tests were undertaken with Ostenil® added to distilled water. Here, wear was much lower but not clinically valid as transfer films were formed on the test plates.


Publication metadata

Author(s): Joyce T

Publication type: Article

Publication status: Published

Journal: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology

Year: 2009

Volume: 223

Issue: 3

Pages: 297-302

ISSN (print): 1350-6501

ISSN (electronic): 2041-305X

Publisher: Professional Engineering Publishing

URL: http://dx.doi.org/10.1243/13506501JET480

DOI: 10.1243/13506501JET480


Altmetrics

Altmetrics provided by Altmetric


Actions

Find at Newcastle University icon    Link to this publication


Share