Case ReportsDisassociation of an Anteriorly Implanted Dual-Mobility Component with Migration to the Distal Posterior Thigh A Case ReportAnliker, Luke W. PA-C1,a; Tresley, Jonathan M. MD2; LaReau, Justin M. MD1 Author Information 1Hinsdale Orthopaedics, Hinsdale, Illinois 2Advocate Good Samaritan Hospital, Downers Grove, Illinois aE-mail address for L.W. Anliker: [email protected] Investigation performed at Hinsdale Orthopaedics, Hinsdale, IL Disclosure: The Disclosure of Potential Conflicts of Interest forms are provided with the online version of the article (https://links.lww.com/JBJSCC/B465). JBJS Case Connector 11(2):e20.00400, April-June 2021. | DOI: 10.2106/JBJS.CC.20.00400 Buy Metrics Abstract Case: Intraprosthetic dislocation, a rare complication of modular dual-mobility hip replacements, occurs when the polyethylene component becomes dislodged. Our patient sustained an intraprosthetic dislocation with subsequent implant migration to the posterior thigh. In an anterior approach revision surgery at an outside institution, the component was unable to be located. Subsequent imaging revealed marked implant migration. Computed tomography (CT)-guided needle localization was used to facilitate component removal. Conclusion: In the presence of different surgical approaches, dissociated polyethylene components may migrate to anatomic compartments distinct from the approach of implantation. CT and needle localization may be used to facilitate component removal. Copyright © 2021 by The Journal of Bone and Joint Surgery, Incorporated
