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| http://dx.doi.org/10.1136/bcr-2016-218025 | DOI Listing |
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Dramatic Failure of an OXINIUM Total Knee Arthroplasty With a Massive Pseudotumor Formation.
Arthroplast Today
December 2024
Orthopaedic Department, University of Ulm, Ulm, Germany.
Since the early 2000s, oxidized zirconium implants have emerged as a valuable option in total hip and knee arthroplasty due to their wear resistance and suitability for patients with metal hypersensitivity. The surface of these components is created through a heating and oxidation process of a zirconium alloy, resulting in a thin layer with favorable wear properties. However, there have been few reports of severe metallosis resulting from inadvertent wear of oxidized zirconium components through various mechanisms, including dissociation of the polyethylene liner and joint instability.
View Article and Find Full Text PDFPeculiar reaction of oxidized zirconium from a total knee arthroplasty prosthesis: A case report.
Acta Orthop Traumatol Turc
January 2024
Department of Orthopaedic Surgery, Chonnam National University Medical School and Hwasun Hospital, Hwasun-gun, Republic of Korea.
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.
View Article and Find Full Text PDFToo young for an acquired cardiomyopathy? Cobalt metallosis as a cardiac amyloidosis mimicker.
ESC Heart Fail
April 2024
Department of Cardiology, University of Medicine and Pharmacy 'Carol Davila', Bucharest, Romania.
Metallosis with subsequent cardiac involvement is a possible long-term complication of hip arthroplasty. We report the case of a young female referred to our centre for the suspicion of cardiac amyloidosis presenting with low electrocardiogram voltage, left ventricular hypertrophy, pericardial effusion, and global and longitudinal systolic impairment with apical sparing pattern. Her medical history was remarkable for arthroplasty in the context of congenital hip dysplasia.
View Article and Find Full Text PDFSevere metallosis following catastrophic failure of total shoulder arthroplasty - a case report.
Skeletal Radiol
November 2024
Hospital for Special Surgery, West Palm Beach, FL, USA.
Metallosis is an unusual but consequential complication arising from orthopedic hardware implantation, characterized by the deposition of metallic particles in the periprosthetic soft tissues. The incidence of metallosis associated with shoulder arthroplasties is exceptionally rare since the shoulder is not a weight-bearing joint, making it less susceptible to mechanical wear and, consequently, to conditions like particle disease and metallosis. Nevertheless, anomalous metal-on-metal interactions can develop in total shoulder arthroplasties if the polyethylene component fails due to wear, fracture, or dissociation.
View Article and Find Full Text PDFEnteral N-acetylcysteine to reduce serum cobalt concentrations secondary to prosthetic knee-associated metallosis: A case report.
Am J Health Syst Pharm
March 2024
St. Joseph's/Candler Health System, Savannah, GA, USA.
Purpose: Cobalt metallosis is a rare but dangerous complication of total joint arthroplasty resulting from deterioration of the joint leading to metal-on-metal friction and breakdown. Potential manifestations vary in severity and include dilated cardiomyopathy, thyroid dysfunction, cognitive disturbances, neuropathy, fatigue, and weakness. The therapeutic role of N-acetylcysteine in metallosis has been investigated due to its ability to chelate with heavy metal ions, such as cobalt and chromium.
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