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Five-year polyethylene cup migration and PE wear of the Anatomic Dual Mobility acetabular construct

INTRODUCTION: Dual mobility implants have been successful in reducing postoperative hip dislocation but mid-term results of cup migration and polyethylene wear are missing in the literature. Therefore, we measured migration and wear at 5-year follow-up using radiostereometric analysis (RSA). MATERIA...

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Autores principales: Jørgensen, Peter Bo, Kaptein, Bart L., Søballe, Kjeld, Jakobsen, Stig S., Stilling, Maiken
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9942043/
https://www.ncbi.nlm.nih.gov/pubmed/36802237
http://dx.doi.org/10.1007/s00402-023-04774-5
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author Jørgensen, Peter Bo
Kaptein, Bart L.
Søballe, Kjeld
Jakobsen, Stig S.
Stilling, Maiken
author_facet Jørgensen, Peter Bo
Kaptein, Bart L.
Søballe, Kjeld
Jakobsen, Stig S.
Stilling, Maiken
author_sort Jørgensen, Peter Bo
collection PubMed
description INTRODUCTION: Dual mobility implants have been successful in reducing postoperative hip dislocation but mid-term results of cup migration and polyethylene wear are missing in the literature. Therefore, we measured migration and wear at 5-year follow-up using radiostereometric analysis (RSA). MATERIALS AND METHODS: A cohort of 44 patients (mean age 73, 36 female) with heterogeneous indications for hip arthroplasty but all with a high risk of hip dislocation received total hip replacement (THA) with The Anatomic Dual Mobility X3 monoblock acetabular construct and a highly crosslinked polyethylene liner. RSA images and Oxford Hip Scores were obtained perioperatively and 1, 2, and 5 years postoperatively. Cup migration and polyethylene wear were calculated using RSA. RESULTS: Mean 2-year proximal cup translation was 0.26 mm (95% CI 0.17; 0.36). Proximal cup translation was stable from 1- to 5-year follow-up. Mean 2-year cup inclination (z-rotation) was 0.23° (95% CI − 0.22; 0.68) and was greater in patients with osteoporosis compared to patients without osteoporosis (p = 0.04). Using 1-year follow-up as baseline, the 3D polyethylene wear rate was 0.07 mm/year (0.05; 0.10). Oxford hip scores improved 19 (95% CI 14; 24) points from mean 21 (range 4; 39) at baseline, to 40 (9; 48) 2 years postoperatively. There were no progressive radiolucent lines > 1 mm. There was 1 revision for offset correction. CONCLUSIONS: Anatomic Dual Mobility monoblock cups were well-fixed, the polyethylene wear rate was low, and the clinical outcomes were good until 5-year follow-up suggesting good implant survival in patients of different age groups and with heterogeneous indications for THA. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00402-023-04774-5.
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spelling pubmed-99420432023-02-21 Five-year polyethylene cup migration and PE wear of the Anatomic Dual Mobility acetabular construct Jørgensen, Peter Bo Kaptein, Bart L. Søballe, Kjeld Jakobsen, Stig S. Stilling, Maiken Arch Orthop Trauma Surg Hip Arthroplasty INTRODUCTION: Dual mobility implants have been successful in reducing postoperative hip dislocation but mid-term results of cup migration and polyethylene wear are missing in the literature. Therefore, we measured migration and wear at 5-year follow-up using radiostereometric analysis (RSA). MATERIALS AND METHODS: A cohort of 44 patients (mean age 73, 36 female) with heterogeneous indications for hip arthroplasty but all with a high risk of hip dislocation received total hip replacement (THA) with The Anatomic Dual Mobility X3 monoblock acetabular construct and a highly crosslinked polyethylene liner. RSA images and Oxford Hip Scores were obtained perioperatively and 1, 2, and 5 years postoperatively. Cup migration and polyethylene wear were calculated using RSA. RESULTS: Mean 2-year proximal cup translation was 0.26 mm (95% CI 0.17; 0.36). Proximal cup translation was stable from 1- to 5-year follow-up. Mean 2-year cup inclination (z-rotation) was 0.23° (95% CI − 0.22; 0.68) and was greater in patients with osteoporosis compared to patients without osteoporosis (p = 0.04). Using 1-year follow-up as baseline, the 3D polyethylene wear rate was 0.07 mm/year (0.05; 0.10). Oxford hip scores improved 19 (95% CI 14; 24) points from mean 21 (range 4; 39) at baseline, to 40 (9; 48) 2 years postoperatively. There were no progressive radiolucent lines > 1 mm. There was 1 revision for offset correction. CONCLUSIONS: Anatomic Dual Mobility monoblock cups were well-fixed, the polyethylene wear rate was low, and the clinical outcomes were good until 5-year follow-up suggesting good implant survival in patients of different age groups and with heterogeneous indications for THA. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00402-023-04774-5. Springer Berlin Heidelberg 2023-02-21 /pmc/articles/PMC9942043/ /pubmed/36802237 http://dx.doi.org/10.1007/s00402-023-04774-5 Text en © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023, Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.
spellingShingle Hip Arthroplasty
Jørgensen, Peter Bo
Kaptein, Bart L.
Søballe, Kjeld
Jakobsen, Stig S.
Stilling, Maiken
Five-year polyethylene cup migration and PE wear of the Anatomic Dual Mobility acetabular construct
title Five-year polyethylene cup migration and PE wear of the Anatomic Dual Mobility acetabular construct
title_full Five-year polyethylene cup migration and PE wear of the Anatomic Dual Mobility acetabular construct
title_fullStr Five-year polyethylene cup migration and PE wear of the Anatomic Dual Mobility acetabular construct
title_full_unstemmed Five-year polyethylene cup migration and PE wear of the Anatomic Dual Mobility acetabular construct
title_short Five-year polyethylene cup migration and PE wear of the Anatomic Dual Mobility acetabular construct
title_sort five-year polyethylene cup migration and pe wear of the anatomic dual mobility acetabular construct
topic Hip Arthroplasty
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9942043/
https://www.ncbi.nlm.nih.gov/pubmed/36802237
http://dx.doi.org/10.1007/s00402-023-04774-5
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