Seon, Jong Keun and Ayob, Khairul Anwar and Noh, Myung Giun and Yang, Hong Yeol (2024) Peculiar reaction of oxidized zirconium from a total knee arthroplasty prosthesis: A case report. Acta Orthopaedica et Traumatologica Turcica, 58 (1). ISSN 1017-995X, DOI https://doi.org/10.5152/j.aott.2024.23115.
Full text not available from this repository.Abstract
Oxidized zirconium (OxiniumTM) prostheses, made up of a metallic alloy of zirconium with a ceramic surface formed by oxidizing the outer layer, were developed as an alternative bearing surface to reduce polyethylene wear and decrease failure of total knee arthroplasty (TKA). We report a unique catastrophic failure of an Oxinium TKA with consequent accelerated wear and severe metallosis. Intraoperatively, we observed extensive wear grooving of the femoral component with exposure of the underlying silver layers and the complete wear of polyethylene on the medial side. Metallic debris had a peculiar arthrogram appearance, noted within the cut surface of the femur and tibia, indicative of the osteolysis that occurred, leading up to the failure of the implants. The histopathologic examination revealed a collection of macrophages with foreign -body reactions and black -pigmented metal -induced wear particles. Oxinium has clear benefits regarding superior wear properties; however, surgeons need to be aware that there is a risk of exposure to the underlying layers that may precede accelerated wear, deformation, and metallosis. Uncovering the deeper layers could result in the appearance of an arthrogram on plain radiographs. Early identification of polyethylene wear and prompt revision is crucial to avoid the rapid progression of subsequent metallosis and catastrophic implant failure, specifically when using oxidized zirconium components for TKA. To the best of our knowledge, this is the first report presenting a detailed histologic analysis to provide insight into the mechanisms of the failed Oxinium components.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Oxidized zirconium; Metallosis; Polyethylene wear; Total knee arthroplasty |
| Subjects: | R Medicine > R Medicine (General) |
| Divisions: | Faculty of Medicine > Orthopaedic Surgery Department |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 14 Nov 2024 03:17 |
| Last Modified: | 14 Nov 2024 03:17 |
| URI: | http://eprints.um.edu.my/id/eprint/45890 |
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