ArticleArthroplasty today2026
The Growing Impact of Severe Obesity on 90-Day Outcomes After Elective Primary Total Hip Arthroplasty: A National Propensity-Matched Study.
Article in Arthroplasty today, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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3 authors.
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Abstract
Background: Severe obesity is increasingly prevalent among patients undergoing total hip arthroplasty (THA), yet contemporary national data evaluating its impact on early complications and revision risk remain limited. We evaluated temporal trends and 90-day outcomes associated with severe obesity after elective primary THA. Methods: We performed a retrospective cohort study using the Nationwide Readmissions Database (2020-2022). Elective primary THAs performed on hospital day 0 were identified. Severe obesity was defined by ICD-10-CM codes E66.01 or E66.2. To ensure complete follow-up, 90-day analyses included procedures performed between January and September. Propensity score matching (1:1, nearest neighbor without replacement) adjusted for demographics, payer, hospital characteristics, and major comorbidities. The primary outcome was all-cause 90-day readmission. Secondary outcomes included reoperation, true component-level revision, and resource utilization. Results: Among 366,374 weighted elective THAs, 28,798 (7.9%) involved severe obesity. Prevalence increased from 7.4% in 2020 to 8.7% in 2022 ( Conclusions: Severe obesity is increasingly prevalent and independently associated with higher early complications, readmission, reoperation, and revision following elective primary THA. Level of Evidence: Level III.
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