Journal
MATERIALS & DESIGN
Volume 28, Issue 1, Pages 155-171Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2005.05.018
Keywords
metal ions concentrations; total joint replacements; toxicity; apoptosis; genotoxicity; carcinogenesis; metal allergy; electrochemical issues; cytokines; cobalt; chromium; titanium TNF-alpha
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Total hip-joint arthroplasty is performed in increasing numbers where it translates to about 0.16-0.2% of population per year in industrial countries. In most cases, an implant is a metallic component articulating with a metal, ceramic or poly-ethylene liner as seen in the case of hip, knee and spine. The metal implants release ions in vivo. Therefore, there is a need to study metallic implants and ions released as a result. Toxic concentrations of ions can lead to many adverse physiological effects, including cytotoxicity, genotoxicity, carcinogenicity, and metal sensitivity. There is a need to map ion concentrations establishing boundaries between normal and toxic levels; which however, does not exist. Reference levels of ion concentrations in body fluids and tissues determined by many studies are compiled, reviewed, and presented in this paper. The concentrations of ions released from different alloys, including cobalt, chromium, nickel, molybdenum titanium, aluminum, and vanadium, are presented in this paper. This paper reviews the literature pertaining to clinical data on metal ion concentrations in patients with metal joint prostheses, and laboratory data on the physiological effects of the metals. (c) 2005 Elsevier Ltd. All rights reserved.
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