Does metal transfer affect the tribological behaviour of femoral heads? Roughness and phase transformation analyses on retrieved zirconia and Biolox® Delta composites

Affatato, Saverio; Ruggiero, Alessandro; Mattia, Jonathan Salvatore De; Taddei, Paola

doi:10.1016/j.compositesb.2016.02.020

Cited by 38 publications

(21 citation statements)

References 40 publications

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“…The increase in R a with time observed here indicates the wear mechanism of the ZTA ceramic may be different to that reported for alumina ceramic where repolishing has been reported. 27 Increases in ZTA roughness of retrieved implants compared with virgin materials have previously been reported 14,16 and are associated with both wear and metal transfer. However the relationship between R a and time has not been tested by other authors and our understanding would benefit from further retrieval studies.…”

Section: Phase Transformation In Retrieved Ceramicsmentioning

confidence: 83%

“…It is generally agreed that severe wear, such as caused by edge loading and microseparation does increase monoclinic content in the worn areas . Recent studies also show metal contamination of the surface which results in wear of the ceramic can also increase monoclinic content . Sources of metal contamination include contact with a metallic articulating surface, dislocation, or impingement leading to contact with the acetabular rim and dislocation/relocation manoeuvres during surgery .…”

Section: Retrieval Studies On Biolox® Deltamentioning

confidence: 99%

“…4,13,19 Recent studies also show metal contamination of the surface which results in wear of the ceramic can also increase monoclinic content. 16,17 Sources of metal contamination include contact with a metallic articulating surface, dislocation, or impingement leading to contact with the acetabular rim and dislocation/relocation manoeuvres during surgery. 16 However, results from well-functioning implants are not so conclusive.…”

mentioning

confidence: 99%

“…16,17 Sources of metal contamination include contact with a metallic articulating surface, dislocation, or impingement leading to contact with the acetabular rim and dislocation/relocation manoeuvres during surgery. 16 However, results from well-functioning implants are not so conclusive. Elpers et al 14 reported no significant increase in monoclinic content due to mild wear, but Taddei et al 15 reported wear to be the main cause of phase transformation.…”

mentioning

confidence: 99%

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Zirconia phase transformation in retrieved, wear simulated, and artificially aged ceramic femoral heads

Parkes

Sayer

Goldhofer

et al. 2017

Journal Orthopaedic Research

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Zirconia in Zirconia toughened alumina ceramic hip replacements exists in an unstable state and can transform in response to stress giving the material improved fracture toughness. Phase transformation also occurs under hydrothermal conditions such as exist in vivo. To predict the hydrothermal aging that will occur in vivo accelerated aging procedures have been used, but validation of these models requires the study of retrieved hip joints. Here 26 retrievals are analysed to determine the degree of phase transformation in vivo. These were compared with virgin heads, heads that had undergone the accelerated aging process and heads wear tested to 5 million cycles in a hip simulator. Monoclinic content and surface roughness were measured using Raman spectroscopy and white light interferometry respectively. The monoclinic content for retrieved heads was 28.5% ± 7.8, greater than twice that in virgin, aged, or wear tested heads and did not have a significant correlation with time, contrary to the predictions of the hydrothermal aging model. The surface roughness for retrieved heads in the unworn area was not significantly different to that in virgin, aged, or unworn areas of wear tested heads. However in worn areas of the retrieved heads, the surface roughness was higher than observed in wear simulator testing. These results indicate that current testing methodologies do not fully capture the operational conditions of the material and the real performance of future new materials may not be adequately predicted by current pre‐clinical testing methods. © 2017 The Authors. Journal of Orthopaedic Research Published by Wiley Periodicals, Inc. on behalf of Orthopaedic Research Society 35:2781–2789, 2017.

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Section: Phase Transformation In Retrieved Ceramicsmentioning

confidence: 83%

Section: Retrieval Studies On Biolox® Deltamentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Zirconia phase transformation in retrieved, wear simulated, and artificially aged ceramic femoral heads

Parkes

Sayer

Goldhofer

et al. 2017

Journal Orthopaedic Research

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“…Typical implant materials include CrCrMo alloys and ceramics, as well as the applications of physical vapour deposition (PVD) hard coatings [31][32][33][34]. It has been found that the surface conditions, such as the applied mechanical and electrochemical polishing as well as the adhesion property of hard coatings, have strong influence on the service life performance [35,36].…”

Section: Introductionmentioning

confidence: 99%

Electron Microscopy and Spectroscopy in the Analysis of Friction and Wear Mechanisms

Luo

2018

Lubricants

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Friction and wear take place on two solid surfaces in sliding contact as a result of the mechanical, thermal, and chemical interactions with the participation of environmental species. These interactions lead to the formation of a tribo-layer or tribofilm, which attaches on the worn surfaces, and consequently, contributes to the variation of the friction and wear behaviour. Electron microscopy and the associated spectroscopic analyses are powerful in probing these matters in spatial resolutions from micro to atomic scale. This article provides a review of the author's work in the wear and friction mechanisms of physical vapour deposition (PVD) hard coatings, in which various scanning electron microscope (SEM)-and transmission electron microscope (TEM)-based microscopic and spectroscopic techniques were employed. Understanding on the failure mechanisms and the origin of self-adaptive friction has been improved to the nano-scale. Other related issues are also discussed, such as sample preparation techniques for cross-sectional electron microscopy, energy dispersive X-ray spectroscopy, and electron energy loss spectroscopy.

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A Critical Review of Two Bioceramics for Total Hip Arthroplasty

McEntire,

Bal,

Pezzotti

2024

Silicon Nitride Bioceramics

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Does metal transfer affect the tribological behaviour of femoral heads? Roughness and phase transformation analyses on retrieved zirconia and Biolox® Delta composites

Cited by 38 publications

References 40 publications

Zirconia phase transformation in retrieved, wear simulated, and artificially aged ceramic femoral heads

Zirconia phase transformation in retrieved, wear simulated, and artificially aged ceramic femoral heads

Electron Microscopy and Spectroscopy in the Analysis of Friction and Wear Mechanisms

A Critical Review of Two Bioceramics for Total Hip Arthroplasty

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