Case Report
Copyright ©The Author(s) 2023. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Orthop. Dec 18, 2023; 14(12): 889-896
Published online Dec 18, 2023. doi: 10.5312/wjo.v14.i12.889
Unicompartimental knee arthroplasty metallosis treated with uni-on-uni revision: A case report
Giuseppe Toro, Adriano Braile, Gianluca Conza, Annalisa De Cicco, Assala Abu Mukh, Giacomo Placella, Vincenzo Salini
Giuseppe Toro, Adriano Braile, Gianluca Conza, Annalisa De Cicco, Department of Medical and Surgical Specialties and Dentistry, University of Campania “Luigi Vanvitelli”, Naples 80138, Italy
Assala Abu Mukh, Giacomo Placella, Vincenzo Salini, Department of Orthopaedics and Traumatology, San Raffaele Hospital, Milan 20132, Italy
Author contributions: Braile A, Conza G and Salini V performed material preparation and data collection; Placella G, Toro G, Salini V performed data analysis and interpretation; Abu Mukh A and De Cicco A written the first draft of the manuscript; Placella G and Toro G revised the paper and wrote the final version of the manuscript; Toro G and Salini V supervised the entire study; all authors commented on previous versions of the manuscript; all authors read and approved the final manuscript; all authors contributed to the study conception and design.
Informed consent statement: Informed written consent was obtained from the patient for publication of this report and any accompanying images.
Conflict-of-interest statement: The authors declare that they have no conflict of interest.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Giuseppe Toro, MD, PhD, Research Assistant Professor, Department of Medical and Surgical Specialties and Dentistry, University of Campania “Luigi Vanvitelli,” No. 4 Via L. De Crecchio, Naples 80138, Italy. giuseppe.toro@unicampania.it
Received: August 29, 2023
Peer-review started: August 29, 2023
First decision: October 9, 2023
Revised: October 15, 2023
Accepted: November 9, 2023
Article in press: November 9, 2023
Published online: December 18, 2023
Core Tip

Core Tip: Metallosis is a rare but serious complication of unicompartimental knee arthroplasty. It is generally treated through surgical debridment and revision to a total knee arthroplasty. However, in case of absence of critical signs of implant malpositioning, soft tissue impairment or bone loss, it could be successfully resolved through surgical debridment and uni-on-uni revision.