Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/6780
Citations
Scopus Web of ScienceĀ® Altmetric
?
?
Type: Journal article
Title: In vitro human monocyte response to wear particles of titanium alloy containing vanadium or niobium
Author: Rogers, S.
Howie, D.
Graves, S.
Pearcy, M.
Haynes, D.
Citation: Journal of Bone and Joint Surgery (British), 1997; 79-B(2):311-315
Publisher: BRITISH EDITORIAL SOC BONE JOINT SURGERY
Issue Date: 1997
ISSN: 0301-620X
2044-5377
Statement of
Responsibility: 
S. D. Rogers, D. W. Howie, S. E. Graves, M. J. Pearcy, D. R. Haynes
Abstract: Our aim was to determine whether in vitro studies would detect differences in the cellular response to wear particles of two titanium alloys commonly used in the manufacture of joint replacement prostheses. Particles were of the order of 1 microm in diameter representative of those found adjacent to failed prostheses. Exposure of human monocytes to titanium 6-aluminium 4- vanadium (TiAlV) at concentrations of 4 x 10(7) particles/ml produced a mean prostaglandin E2 release of 2627.6 pM; this was significantly higher than the 317.4 pM induced by titanium 6-aluminium 7-niobium alloy (TiAlNb) particles (p = 0.006). Commercially-pure titanium particles induced a release of 347.8 pM. In addition, TiAlV stimulated significantly more release of the other cell mediators, interleukin-1, tumour necrosis factor and interleukin-6. At lower concentrations of particles there was less mediator release and less obvious differences between materials. None of the materials caused significant toxicity. The levels of inflammatory mediators released by phagocytic cells in response to wear particles may influence the amount of periprosthetic bone loss. Our findings have shown that in vitro studies can detect differences in cellular response induced by particles of similar titanium alloys in common clinical use, although in vivo studies have shown little difference. While in vitro studies should not be used as the only form of assessment, they must be considered when assessing the relative biocompatibility of different implant materials.
Keywords: Monocytes; Cells, Cultured; Humans; Titanium; Alloys; Dinoprostone; Tumor Necrosis Factor-alpha; Interleukin-1; Interleukin-6; Suspensions; Microscopy, Electron, Scanning; Radioimmunoassay; Materials Testing; Joint Prosthesis; Particle Size
RMID: 0030005817
DOI: 10.1302/0301-620X.79B2.7192
Description (link): http://www.bjj.boneandjoint.org.uk/content/79-B/2/311
Appears in Collections:Orthopaedics and Trauma publications

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.