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08.05.2020 | Original Paper

The Lefèvre retentive cup compared with the dual mobility cup in total hip arthroplasty revision for dislocation

Zeitschrift:
International Orthopaedics
Autoren:
Julien Labban, Hoël Letissier, Patrice Mertl, Christian Lefèvre, Henri Migaud, Arnaud Clavé
Wichtige Hinweise

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Abstract

Background

Limiting the risk of dislocation is one of the main aims of both dual mobility and Lefèvre retentive cups. However, these devices have never been compared. The goal of our study was to compare these devices in total hip arthroplasty revisions for instability. The judgement criterion was non-recurrence of dislocation in a follow-up period of eight years.

Methods

This retrospective case-control study compared two continuous paired series of total hip arthroplasty revisions for instability. These series included 63 patients and 159 patients with implantation of a Lefèvre retentive cup and a dual mobility cup, respectively.

Results

The success rate at eight years (i.e., no recurrence) was 91 ± 0.05% and 95 ± 0.02% in the Lefèvre retentive cup and dual mobility groups, respectively. The difference was not statistically significant (p = 0.6).

Conclusion

It seems that the Lefèvre retentive cup provides comparable outcomes with the dual mobility cup in the total hip arthroplasty revisions for instability, avoiding recurrence in long term.

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