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Research / Technology

Studies indicate that the number of total knee replacement (TKR) surgeries more than tripled between 1993 and 2009, while total hip replacements doubled. An increase in the prevalence of overweight and obesity in the U.S. accounted for 95% of the higher demand for TKR, with younger patients affected to a greater degree. (American Academy of Orthopaedic Surgeons, 6/4/14)