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11-Year outcomes in patients with metal-on-metal ASR hip arthroplasty
Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm, Sweden; Department of Orthopaedics, Karolinska University Hospital, Stockholm, Sweden.
Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm, Sweden; Department of Orthopaedics, School of Medical Sciences, Örebro University and Örebro University Hospital, Örebro, Sweden.
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2022 (English)In: Journal of Orthopaedics, ISSN 0972-978X, E-ISSN 2589-9082, Vol. 32, p. 98-103Article in journal (Refereed) Published
Abstract [en]

Background: We analysed the long-term revision rate, clinical outcomes and metal ion concentrations in blood over time in patients who had undergone metal-on-metal Articular Surface Replacement (ASR) hip arthroplasty. Methods: A total of 38 patients (43 hips) were included: 24 patients (28 hips) underwent large-head total hip arthroplasty (XL THA), and 14 patients (15 hips) underwent hip resurfacing arthroplasty (HRA). The median follow-up time was 11 (range 7-12) years. Results: None of 15 HRA implants were revised. Nine of 28 XL THA implants (32%) in 8 patients were revised. The Co ion levels significantly increased in the XL THA group (p=0.009) over a median time period of 84 (25-97) months. Conclusion: The levels of Co ions in blood were higher in the patients who had undergone XL THA and increased significantly over time.

Place, publisher, year, edition, pages
Elsevier BV , 2022. Vol. 32, p. 98-103
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Orthopaedics
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URN: urn:nbn:se:umu:diva-203187DOI: 10.1016/j.jor.2022.05.015ISI: 000807305100011Scopus ID: 2-s2.0-85131094702OAI: oai:DiVA.org:umu-203187DiVA, id: diva2:1727751
Available from: 2023-01-17 Created: 2023-01-17 Last updated: 2024-01-22Bibliographically approved

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Otten, Volker T CCrnalic, Sead

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