TY  - BOOK
AU  - Bunning, Robert D
AU  - Kao, Cyrus
TI  - Two cases of metallosis from metal-on-polyethylene total hips: an emerging problem
SN  - 1934-1482
PY  - 2015///
KW  - *Cobalt/bl [Blood]
KW  - *Cobalt/to [Toxicity]
KW  - *Prosthesis Design
KW  - Aged, 80 and over
KW  - Arthroplasty, Replacement, Hip
KW  - Female
KW  - Hip Prosthesis/ae [Adverse Effects]
KW  - Humans
KW  - Male
KW  - Middle Aged
KW  - Polyethylene
KW  - MedStar National Rehabilitation Network
KW  - Case Reports
KW  - Journal Article
N2  - 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
UR  - http://dx.doi.org/10.1016/j.pmrj.2014.11.004
ER  -