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Demand for knee replacement surgery rises steadily in the US

BMJ 2012; 345 doi: (Published 03 October 2012) Cite this as: BMJ 2012;345:e6597

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The number of total knee replacements done each year in the US increased by 161.5% from 1991 to 2010, say researchers. An ageing population is partly to blame, although obesity and expanding indications for surgery may also have contributed. Rates of primary knee replacement operations per capita …

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