Obesity surgery before TKA reduces complications in obese patients

People with severe obesity and knee osteoarthritis are advised to attempt weight loss before total knee arthroplasty (TKA), as it can reduce complications of joint surgery, according to a study published online April 14 in the JAMA Network Open.

Michelle M. Dowsey, Ph.D., from the University of Melbourne in Australia, and colleagues investigated whether the results are improved by undergoing obesity surgery before TKA in adults with body mass index ≥35 kg / m² and end-stage osteoarthritis. Analysis included 82 patients awaiting TKA, who were randomly assigned to undergo obesity surgery (41 patients) or usual care (41 patients).

The researchers found that 14.6 percent of the patients in the intervention group incurred a composition of complications versus 36.6 percent in the usual care group. Furthermore, the difference between groups in body mass index after 12 months was -6.32, which benefits the intervention group. Twelve participants in the intervention group rejected TKA due to symptom improvement, while two participants in the usual care group rejected TKA (difference, 24.4 percent).

“The results suggest that people with severe obesity and knee osteoarthritis should seek to lose weight before considering TKA, and weight loss appears to reduce the complications of joint surgery,” the authors write.

Several authors revealed economic connections to the pharmaceutical industry.

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Greater weight loss after bariatric surgery linked to diabetes remission More information: Michelle M. Dowsey et al, Effect of bariatric surgery on risk of complications after total knee arthroplasty, JAMA Network Open (2022). DOI: 10.1001 / jamanetworkopen.2022.6722

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Quote: Obesity Surgery Before TKA Reduces Complications In Obese Patients (2022, April 15) Retrieved April 16, 2022 from https://medicalxpress.com/news/2022-04-bariatric-surgery-tka-complications-obese.html

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