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Published in: International Orthopaedics 2/2020

01-02-2020 | Hip-TEP | Original Paper

Dual mobility constructs in revision total hip arthroplasty: survivorship analysis in recurrent dislocation versus other indications at three to twelve-year follow-up

Authors: Nicolas de l’Escalopier, Valérie Dumaine, Guillaume Auberger, Antoine Babinet, Jean-Pierre Courpied, Philippe Anract, Moussa Hamadouche

Published in: International Orthopaedics | Issue 2/2020

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Abstract

Background

The aim of this retrospective study was to evaluate the clinical, radiologic, and survival results of dual mobility (DM) sockets in revision total hip arthroplasty (THA) performed for instability versus revision THAs performed for other reasons.

Methods

From a computerized database, we identified 84 revision THAs using a modern DM socket performed in 81 patients with a mean age of 71 years. Indication for revision was recurrent dislocation in 47 hips, and other reasons in the remaining 37 hips. A survivorship analysis according to the actuarial method was carried out on the entire series using revision for any cause, revision for dislocation, and radiological cup loosening revised or not, as the end points.

Results

Of the 81 patients, twelve died, six were lost to follow-up, eight had been revised, and 55 patients (58 hips) were unrevised and alive at a mean follow-up of 6.4 years. Dislocation occurred in four of the 47 (8.5%) hips for which indication for revision was dislocation versus one of the remaining 37 (2.7%) hips [odds ratio = 3.4 (0.4–31.3), p = 0.07]. According to our criteria, three acetabular components of which one was revised were considered as loosened. When using revision for dislocation as the end-point, the survival rate at seven years was 90.4 ± 5.3% (IC95%, 79.9–100) in the 47 hips for which the indication for revision was dislocation versus 100% in the remaining 37 hips (log-rank, p = 0.5).

Conclusions

The current study indicated that DM sockets represent an interesting solution to prevent dislocation in revision THAs at mid-term follow-up.
Literature
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go back to reference Pattyn C, Audenaert E (2012) Early complications after revision total hip arthroplasty with cemented dual-mobility socket and reinforcement ring. Acta Orthop Belg 78:357–361PubMed Pattyn C, Audenaert E (2012) Early complications after revision total hip arthroplasty with cemented dual-mobility socket and reinforcement ring. Acta Orthop Belg 78:357–361PubMed
Metadata
Title
Dual mobility constructs in revision total hip arthroplasty: survivorship analysis in recurrent dislocation versus other indications at three to twelve-year follow-up
Authors
Nicolas de l’Escalopier
Valérie Dumaine
Guillaume Auberger
Antoine Babinet
Jean-Pierre Courpied
Philippe Anract
Moussa Hamadouche
Publication date
01-02-2020
Publisher
Springer Berlin Heidelberg
Keywords
Hip-TEP
Hip-TEP
Published in
International Orthopaedics / Issue 2/2020
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI
https://doi.org/10.1007/s00264-019-04445-4

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