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Research / Technology

Studies revealed that graphite carbon is a key element in the lubricating layer that forms on metal-on-metal hip implants. The lubricant has more in common with the lubrication of a combustion engine than that of a natural joint. The finding may help scientists understand how joint implants function, and develop strategies to improve their performance. (NIH/National Institute of Arthritis and Musculoskeletal and Skin Diseases, 12/22/11)