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The nature and dissemination of UHMWPE wear debris retrieved from periprosthetic tissue of THR.

Elfick, A. P. D. and Green, S. M. and Krikler, S. and Unsworth, A. (2003) 'The nature and dissemination of UHMWPE wear debris retrieved from periprosthetic tissue of THR.', Journal of biomedical materials research part A., 65A (1). pp. 95-108.


The role of wear debris in provoking joint replacement failure through bone resorption is now supported by much research. This study presents the analysis of 104 tissue samples using laser diffraction wear particle analysis in conjunction with standard histologic methods. The number and volume distributions were correlated to a range of joint and patient parameters. The median particle diameter by number was 0.69 m. No particles smaller than 0.113 m were resolved. No variation in terms of particle distribution was found among joint types. The ability of particles to migrate away from their point of origin was found to be inversely proportional to their size. The numbers of particles per gram of tissue found in various regions around the prosthesis varied little. Further, the numbers of particles in tissue samples shown to have a chronic foreign-body reaction was > 1 × 109 particles/gram.

Item Type:Article
Keywords:Prosthetic wear debris, Explanted, Total hip replacements, Acetabular components, Polyethylene wear, Femoral-head, Surface-area, In-vitro, Particles, Size, Morphology, Sockets.
Full text:Full text not available from this repository.
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Record Created:29 Aug 2006
Last Modified:08 Apr 2009 16:21

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