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- W2766034477 abstract "Background: While obesity may be a risk factor for complications following total knee arthroplasty, data remain sparse on the impact of the degree of obesity on patient-reported outcomes following this procedure. Our objective was to determine the extent to which obesity level affects the trajectory of recovery as well as patient-reported pain, function, and satisfaction with surgery following total knee arthroplasty. Methods: We followed a cohort of patients who underwent total knee arthroplasty at 1 of 4 medical centers. Patients were ≥40 years of age with a primary diagnosis of osteoarthritis. We stratified patients into 5 groups according to the World Health Organization classification of body mass index (BMI). We assessed the association between BMI group and pain and function over the time intervals of 0 to 3, 3 to 6, and 6 to 24 months using a piecewise linear model. We also assessed the association between BMI group and patient-reported outcomes at 24 months. Multivariable models adjusted for age, sex, race, diabetes, musculoskeletal functional limitations index, pain medication use, and study site. Results: Of the 633 participants included in our analysis, 19% were normal weight (BMI of <25 kg/m 2 ), 32% were overweight (BMI of 25 to 29.9 kg/m 2 ), 27% were class-I obese (BMI of 30 to 34.9 kg/m 2 ), 12% were class-II obese (BMI of 35 to 39.9 kg/m 2 ), and 9% were class-III obese (BMI of ≥40 kg/m 2 ). Study participants with a higher BMI had worse preoperative WOMAC (Western Ontario and McMaster Universities Osteoarthritis Index) pain and function scores and had greater improvement from baseline to 3 months. The mean change in pain and function from 3 to 6 and from 6 to 24 months was similar across all BMI groups. At 24 months, participants in all BMI groups had similar levels of pain, function, and satisfaction. Conclusions: Because of the differential trajectory of recovery in the first 3 months following total knee arthroplasty, the participants in the higher BMI groups were able to attain absolute pain and function scores similar to those in the nonobese and class-I obese groups. These data can help surgeons discuss expectations of pain relief and functional improvement with total knee arthroplasty candidates with higher BMI. Level of Evidence: Prognostic Level III . See Instructions for Authors for a complete description of levels of evidence." @default.
- W2766034477 created "2017-11-10" @default.
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- W2766034477 date "2017-11-01" @default.
- W2766034477 modified "2023-10-10" @default.
- W2766034477 title "Effect of Obesity on Pain and Functional Recovery Following Total Knee Arthroplasty" @default.
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- W2766034477 doi "https://doi.org/10.2106/jbjs.17.00022" @default.
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