ArticleArthroplasty today2026
Clinical and Nonclinical Determinants of Simultaneous vs Staged Bilateral Total Knee Arthroplasty.
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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6 authors.
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Abstract
Background: Patients requiring bilateral total knee arthroplasty (TKA) may undergo surgery either simultaneously or in a staged fashion. Contemporary trends in utilization, as well as clinical and nonclinical factors correlating with surgical selection, remain undefined. Methods: Adult patients who underwent simultaneous or staged bilateral TKA between 2016 and 2021 were identified. Patient characteristics were assessed, including clinical (age, sex, Elixhauser Comorbidity Index) and nonclinical factors (geographic region, insurance status, and social determinants of health). Multivariate logistic regression was performed to identify predictors of undergoing simultaneous bilateral TKA vs staged bilateral TKA. Results: Of the 138,468 patients undergoing bilateral TKA, 20,473 (14.8%) had simultaneous and 117,995 (85.2%) had staged bilateral TKA. The proportion of simultaneous procedures declined from 19.0% in 2016 to 7.1% in 2021. Simultaneous TKA patients were younger (63.9 ± 8.3 years vs 65.6 ± 8.6 years for staged; Conclusions: The use of simultaneous bilateral TKA substantially declined between 2016 and 2021 relative to staged procedures. Surgical decisions were associated with both clinical (age, comorbidity burden, sex) and nonclinical (region, insurance, social determinants of health) factors.
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