The efficacy of dual-mobility cup in preventing dislocation after total hip arthroplasty: a systematic review and meta-analysis of comparative studies

International Orthopaedics
Matteo RomagnoliStefano Zaffagnini

Abstract

Although long-term reports of total hip arthroplasty (THA) showed successful results, instability remains a major complication. Recently, dual-mobility cups (DMC) have gained more and more interest among clinicians, with encouraging results in terms of lower rate of dislocation associated with good clinical results, but a lack of evidence exists regarding the real efficacy of this implant design compared to traditional fixed-bearing total hip arthroplasties. A systematic search was performed in PubMed, Google scholar, Cochrane Library, and EMBASE by two independent reviewers for comparative studies available till December 2017, with the primary objective to demonstrate a real lower dislocation rate of DMC implants compared to unipolar fixed-bearing cup designs. A meta-analysis was conducted with the collected pooled data about dislocation rate, calculating the risk difference (RD) and relative risk (RR) with 95% CI for dichotomous variables. Heterogeneity was tested using the χ2 and Higgins' I2 tests. A fixed-effect model was used because the statistical heterogeneity was below 50%. After performing a critical exclusion process, the number of eligible studies included for final synthesis considered was 15, describing the result...Continue Reading

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Citations

May 1, 2020·The Bone & Joint Journal·Victoria N GibbsBen J L Kendrick
May 12, 2020·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Kevin PirruccioNeil P Sheth
Jul 1, 2020·The Bone & Joint Journal·Nathanael HeckmannJ R Lieberman
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Sep 15, 2020·The Bone & Joint Journal·Yong-Han ChaKyung-Hoi Koo
Nov 3, 2020·The Bone & Joint Journal·Yong-Han ChaKyung-Hoi Koo
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Jun 22, 2021·Artificial Organs·Emanuela CastielloSaverio Affatato
Dec 2, 2021·The Bone & Joint Journal·Spencer MontgomeryJames Nelson Powell
Dec 6, 2021·Orthopaedics & Traumatology, Surgery & Research : OTSR·Maxence BordesMichel-Henri Fessy

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