Zirconia Phase Transformation, Metal Transfer, and Surface Roughness in Retrieved Ceramic Composite Femoral Heads in Total Hip Arthroplasty

Abstract Ceramic femoral heads have had promising results as a bearing surface in total hip arthroplasty. Our objective was to evaluate a series of retrieved alumina-zirconia composite ceramic femoral heads for evidence of the tetragonal to monoclinic zirconia phase transformation, metal transfer an...

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Bibliographic Details
Published in:The Journal of arthroplasty 2014-11, Vol.29 (11), p.2219-2223
Main Authors: Elpers, Marcella, BS, Nam, Denis, MD, Boydston-White, Susie, PhD, Ast, Michael P., MD, Wright, Timothy M., PhD, Padgett, Douglas E., MD
Format: Article
Language:English
Subjects:
Aged
Aluminum Oxide
Arthroplasty, Replacement, Hip - adverse effects
Arthroplasty, Replacement, Hip - instrumentation
Biocompatible Materials
Biolox delta
Biomedical materials
ceramic
Ceramics
Device Removal
Equipment Failure Analysis
Female
Femur Head - surgery
hip arthroplasty
Hip Prosthesis - adverse effects
Humans
In vivo testing
In vivo tests
Male
Middle Aged
Orthopedics
phase transformation
Phase transformations
Prosthesis Design
Prosthesis Failure
Reoperation
retrieval analysis
Surface roughness
Surgical implants
Zirconium
Zirconium dioxide
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Summary:Abstract Ceramic femoral heads have had promising results as a bearing surface in total hip arthroplasty. Our objective was to evaluate a series of retrieved alumina-zirconia composite ceramic femoral heads for evidence of the tetragonal to monoclinic zirconia phase transformation, metal transfer and articular surface roughness. Raman spectra showed evidence of the zirconia phase transformation in all retrieved specimens, with distinct monoclinic peaks at 183, 335, 383, and 479 cm − 1 . All components displayed metal transfer. An increase in the zirconia phase transformation was seen with increasing time in vivo. No correlation between extent of zirconia phase transformation and the surface roughness was found. These short-term results suggest that the use of an alumina-zirconia composite ceramic is a viable option for femoral heads in THA.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2014.08.011