Patients with obesity have reduced risk for 365-day mortality, while patients with underweight have increased risk compared with BMI of 21.75<\/p>\n<\/h3>\n
By Elana Gotkine HealthDay Reporter<\/b>
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FRIDAY, Nov. 21, 2025 (HealthDay News) — Patients with underweight may have poorer outcome after shoulder replacement surgery, while a high body mass index (BMI) is not associated with an increased risk for death, according to a study published online Nov. 20 in PLOS Medicine<\/em>.<\/p>\n Epaminondas Markos Valsamis, M.B., B.Chir., from the University of Oxford in the United Kingdom, and colleagues examined the association between BMI and patient outcomes after elective shoulder replacement surgery in a population-based cohort study. Patients having elective primary shoulder replacement surgery were identified from public and private hospitals in the United Kingdom (2018 to 2022) and Denmark (2006 to 2021); 15,320 and 5,446 procedures, respectively, met the inclusion criteria.<\/p>\n The researchers found that compared with patients with a BMI of 21.75 kg\/m2<\/sup>, patients with obesity (BMI, \u226540 kg\/m2<\/sup>) had a reduced risk for 365-day mortality (hazard ratio, 0.40) and patients with underweight (BMI <18.5 kg\/m2<\/sup>) had an increased risk (hazard ratio, 1.18). An increased risk for 90-day mortality, 90-day serious adverse events, and revision surgery was seen for patients with underweight (hazard ratio, 1.69; odds ratio, 1.36; hazard ratio, 1.70, respectively). No significant association was seen for increasing BMI with an increased risk for any secondary outcome.<\/p>\n “Shoulder replacements offer patients the opportunity for excellent pain relief and improved quality of life,” Valsamis said in a statement. “Our research shows that patients with a higher BMI do not have poorer outcomes after shoulder replacement surgery.”<\/p>\n