Two cases of metallosis from metal-on-polyethylene total hips: an emerging problem.
Citation: Pm & R. 7(4):447-50, 2015 Apr.PMID: 25460210Institution: MedStar National Rehabilitation NetworkForm of publication: Journal ArticleMedline article type(s): Case Reports | Journal ArticleSubject headings: *Cobalt/bl [Blood] | *Cobalt/to [Toxicity] | *Prosthesis Design | Aged, 80 and over | Arthroplasty, Replacement, Hip | Female | Hip Prosthesis/ae [Adverse Effects] | Humans | Male | Middle Aged | PolyethyleneYear: 2015ISSN:- 1934-1482
Item type | Current library | Collection | Call number | Status | Date due | Barcode |
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Journal Article | MedStar Authors Catalog | Article | 25460210 | Available | 25460210 |
This report describes 2 cases of metallosis from metal-on-polyethylene total hip replacements. Case 1 involved a Stryker rejuvenate implant, which has since been recalled. This patient had minimal symptoms, an elevated cobalt level, and loosening. The patient in case 2 had a Dupuys Pinnacle system, with symptoms of weakness, rash, and hip pain. Abnormal laboratory values include elevated sedimentation rate, C-reactive protein, creatinine, cobalt, and decreased hematocrit. Magnetic resonance imaging revealed synovial thickening and extracapsular edema. Although metallosis is a well-established complication of metal-on-metal implants, emerging data reveal that it also may be a problem in non-metal-on-metal implants such as either metal-on-polyethylene or ceramic-on-polyethylene implants, perhaps related to modular corrosion. Copyright © 2015 American Academy of Physical Medicine and Rehabilitation. Published by Elsevier Inc. All rights reserved.
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