Evidence map›Paper›PMID 41738612›Full record

ArticleHip international : the journal of clinical and experimental research on hip pathology and therapy2026

Oxidised zirconium heads show a lower linear wear rate than 28-mm metal heads against XLPE: a retrospective analysis.

Amit Atrey, Zoe Thompson, Veronica Pentland, Richard McCalden, Kevin Gargan, Douglas Naudie, James P Waddell, Graeme Hoite, Amir Khoshbin

Abstract readComparative Study
PubMed Full text at PMC Publisher
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Article in Hip international : the journal of clinical and experimental research on hip pathology and therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Amit AtreyDivision of Orthopaedics, University of Toronto, Toronto, ON, Canada.ORCID 0000-0003-0928-5498
Zoe ThompsonDivision of Orthopaedics, University of Toronto, Toronto, ON, Canada.
Veronica PentlandWestern University, London, ON, Canada.
Richard McCaldenUniversity Hospital, London Health Sciences Centre, London, ON, Canada.
Kevin GarganDepartment of Orthopedic Surgery, Omaha, University of Nebraska Medical Center, Nebraska.
Douglas NaudieWestern University, London, ON, Canada.
James P WaddellSt Michael's Hospital, Toronto, ON, Canada.
Graeme HoiteDivision of Orthopaedics, University of Toronto, Toronto, ON, Canada.ORCID 0000-0001-5114-6999
Amir KhoshbinDivision of Orthopaedics, University of Toronto, Toronto, ON, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThe use of highly cross-linked polyethylene (XLPE) on the acetabulum has undoubtedly improved the wear rates and hence survivorship of total hip arthroplasty (THA). However, the importance of head tribology is not known. Oxidised zirconium (OxZr) was introduced to offer the lower wear rates of ceramic but the strength of metal. Whether OxZr heads have any purported benefits in terms of lowering wear is not known. This study therefore aims to compare wear rates of XLPE against metal and OxZr heads over a 10-year period.

methodsA previous study has suggested we need a minimum 95 cases to show a statistically significant difference. Thus, in this 10-year retrospective analysis we included 95 subjects with a primary THA with a 28-mm OxZr and 131 patients with a 28-mm cobalt-chrome (CoCr) head, both against XLPE liners.Linear and volumetric wear rate comparisons were performed using a validated 2-dimensional stereoisometric analysis by an independent centre.

resultsThere were no significant differences for any of the patient demographics between the 2 groups, with >60% women in both groups and normally distributed age. Cup inclination angle was also comparable between the 2 groups.While there was no difference in volumetric wear rates (

Indexed as

Arthroplasty, Replacement, HipHip ProsthesisPolyethyleneProsthesis FailureZirconiumAgedFemaleHumansMaleMiddle AgedOxidation-ReductionProsthesis DesignRetrospective StudiesPolyethyleneZirconiumHip arthroplastyhip replacementoxidised linear wearOXINIUMtribology

Identifiers

PMID41738612
PMCPMC13379601

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.