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Just like age-defying baby boomers, older folks have seen a surge in knee replacement surgeries, driven partly by a desire to stay active and by joint-damaging obesity.The findings are in a study of more than 3 million Medicare patients, aged 65 and older, who got artificial knees from 1991 through 2010. Almost 10 percent of the operations were redos - replacing worn-out artificial joints.The number...
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