For the study, researchers relied on data from the HSS Total Joint Replacement Registry and analyzed outcomes on all patients with a BMI greater than 18.5 who had undergone a total knee replacement between July 2007 and June 2009.
The investigators found that two years after surgery, pain and function scores improved across all BMI categories and as BMI rose, patient improvements increased. Patients with a BMI greater than 40 showed the most improvement.
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