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International Orthopaedics

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01-12-2013 | Original Paper

Dual mobility cup: dislocation rate and survivorship at ten years of follow-up

Authors: Jean-Louis Prudhon, André Ferreira, Régis Verdier

Published in: International Orthopaedics | Issue 12/2013

Abstract

Purpose

The dual mobility cup introduced in France by Gilles Bousquet has been used in total hip replacement in high-risk patients. This device acts as a large ball implant and significantly reduces the risk of dislocation following hip arthroplasty. Published French literature has focused on low rates of dislocation and long-term follow-up similar to the low-friction arthroplasty.

Methods

We retrospectively reviewed a continuous series of 105 cases of dual mobility cup Quattro (Groupe Lépine, Genay, France) implanted from 2000 to 2002. Selection of the patients requiring a primary hip replacement depended on risk criteria such as age, hip disease and activity score. The dual mobility cup was associated with a modular cemented femoral component and a 22.2-mm stainless steel head.

Results

One dislocation occurred one month after the index surgery requiring no revision surgery. According to the Kaplan-Meier method, survival probability was 95.0 % (95 % confidence interval 81.5–98.8) at ten years of follow-up.

Conclusions

Based on clinical outcome and patient assessment we conclude that the dual mobility cup is a reliable option to decrease dislocation risk without increasing polyethylene wear.

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Title: Dual mobility cup: dislocation rate and survivorship at ten years of follow-up
Authors: Jean-Louis Prudhon
André Ferreira
Régis Verdier
Publication date: 01-12-2013
Publisher: Springer Berlin Heidelberg
Published in: International Orthopaedics / Issue 12/2013
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI: https://doi.org/10.1007/s00264-013-2067-2

At a glance: The STEP trials

Springer Medicine

Dual mobility cup: dislocation rate and survivorship at ten years of follow-up

Abstract

Purpose

Methods

Results

Conclusions

At a glance: The STEP trials

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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