Comparison of 20-year results of total hip arthroplasty using first-generation annealed highly cross-linked polyethylene and zirconia heads in patients aged ≤ 50 and > 50 years.

Yohei Naito, Shine Tone, Gai Kobayashi, Masahiro Hasegawa

Abstract readComparative Study

In one paragraph

Article in Archives of orthopaedic and trauma surgery, 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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5 · Who and what money

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4 authors.

Yohei NaitoDepartment of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan.

Shine ToneDepartment of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan. s-tone@med.mie-u.ac.jp.

Gai KobayashiDepartment of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan.

Masahiro HasegawaDepartment of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThis study investigated 20-year outcomes of total hip arthroplasty (THA) using zirconia heads on annealed highly cross-linked polyethylene (HXLPE) liners, comparing patients aged ≤ 50 and > 50.

methodsWe reviewed 117 hips (100 patients) who underwent cementless THA between 2001 and 2004. After excluding follow-up < 15 years, 22 hips (≤ 50) and 61 hips (> 50) were analyzed. Merle d’Aubigné and Postel score, University of California, Los Angeles activity score, Kaplan–Meier survivorship, femoral head penetration, and oxidative degradation in retrieved liners were evaluated.

resultsPatients ≤ 50 had higher activity. Three revisions for infection occurred in the > 50 group; none due to wear. Survivorship was 93% overall, 100% in ≤ 50, and 91% in > 50, with no difference. Steady-state wear rate was 0.01 mm/year in both groups. Retrieved liners showed oxidation.

conclusionZirconia-on-annealed HXLPE THA showed excellent 20-year wear resistance and survivorship, with comparable outcomes between ≤ 50 and > 50 groups.

Indexed as

Arthroplasty, Replacement, HipHip ProsthesisPolyethyleneZirconiumAdultAgedFemaleHumansMaleMiddle AgedProsthesis DesignProsthesis FailureRetrospective StudiesPolyethyleneZirconiumzirconium oxide20-year resultHighly cross-linked polyethyleneOxidationTotal hip arthroplastyWearYoung patient

Identifiers

PMID41998182

DOI10.1007/s00402-026-06317-0

PMCPMC13090258

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