ArticleArthroplasty (London, England)2026
National evidence linking robotic total knee arthroplasty to reduced 90-day readmissions, complications, and readmission costs.
Article in Arthroplasty (London, England), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Robotic-assisted total knee arthroplasty: accuracy, clinical outcomes, complications, learning curve and cost-effectiveness: a critical clinical review.Journal of robotic surgery · 2026Review
- Beyond Precision: Why the Future of Robotic Joint Arthroplasty Demands Continued Research.Arthroplasty today · 2026Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo compare 90-day readmissions, complications, and resource use after robotic-assisted versus conventional total knee arthroplasty (TKA) in a contemporary, nationally representative cohort.
methodsRetrospective cohort study using the Nationwide Readmissions Database (NRD) 2020-2022. Primary TKA identified from the PR1 field (ICD-10-PCS). Exclusions included non-elective admissions, revisions, bilateral procedures, age < 18, oncology/fracture/reoperation, COVID-19, and discharges after September. Readmissions within 90 days were categorized (prosthesis/SSI, mechanical/implant, VTE). 1:1 propensity score matching (nearest neighbor, caliper 0.01, no replacement) included demographics, comorbidities, hospital factors, and year.
resultsAfter matching, 96,982 patients (48,491 per group) were analyzed. Robotic TKA showed lower all-cause 90-day readmission (5.0% vs 6.5%), superior readmission-free survival (log-rank P < 0.001), shorter readmission LOS (4.8 vs 5.6 days), and lower readmission charges ($66,769 vs $75,544), with slightly higher index charges ($78,125 vs $74,090). Risks were lower for VTE/PE, pneumonia, transfusion, postoperative pain, and prosthesis/SSI-related and mechanical readmissions.
conclusionsIn the largest contemporary national analysis, robotic TKA was associated with fewer early complications, lower 90-day readmissions, and reduced readmission resource use compared with conventional TKA.
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