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Early Failure of a Novel Modular Dual Mobility Liner After Metal Release: Clinical Presentation and Detailed Retrieval Analysis
Journal article   Open access   Peer reviewed

Early Failure of a Novel Modular Dual Mobility Liner After Metal Release: Clinical Presentation and Detailed Retrieval Analysis

Allan K. Metz, Michael A. Kurtz, Cameron R. Egan, Steven M. Kurtz and Christopher E. Pelt
Arthroplasty today, v 33, 101687
01 Jun 2025
DOI: https://doi.org/10.1016/j.artd.2025.101687
PMID: 40276527
Featured in Collection :   UN Sustainable Development Goals @ Drexel
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https://doi.org/10.1016/j.artd.2025.101687View
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Abstract

Cobalt chromium Dual mobility Hip arthroplasty Metal release Retrieval analysis Corrosion
Cobalt chrome alloy (CoCrMo) corrosion and subsequent metal release has been described as a potential complication of total hip arthroplasty. Here, we present the case of a patient with a well-seated dual mobility (DM) implant revised after 10 months. Prior to revision, the patient experienced pain and stiffness. Following a negative infection workup, we measured elevated metal concentrations, hypothesized to originate from the CoCrMo DM liner. While corrosion has been extensively reported in other constructs, the CoCrMo liner described here includes a post and tabs, features added to reduce the risk of corrosion. Retrieval analysis demonstrated a severe chemically based corrosion attack on the liner. Continued caution and ongoing close monitoring of outcomes associated with the use of modular DM constructs is likely warranted.

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Collaboration types
Domestic collaboration
Web of Science research areas
Orthopedics
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