A 90-day episode-of-care cost analysis of robotic-arm assisted total knee arthroplasty. (28th January 2019)

• Record Type: Journal Article
• Authors: Cool, Christina L; Jacofsky, David J; Seeger, Kelly A; Sodhi, Nipun; Mont, Michael A
• Is Part Of: Journal of comparative effectiveness research. Volume 8:Number 5(2019)
• Page Start: 327
• Page End: 336
• Publication Date: 2019-01-28
• Subjects: claims analysis -- economic utility -- episode-of-care -- health economics -- knee arthroplasty -- knee osteoarthritis -- MAKO -- managed care -- TKA -- total knee arthroplasty; Medical care -- Research -- Periodicals; Medical care -- Research -- Evaluation -- Periodicals; Medical care -- Decision making -- Periodicals; Evidence-based medicine -- Periodicals; Medicine, Comparative -- Periodicals; 362.1072
• DOI: 10.2217/cer-2018-0136
• Languages: English
• ISSNs: 2042-6305

Abstract

Aim: To evaluate 90-day episode-of-care (EOC) costs associated with robotic-arm assisted total knee arthroplasty (rTKA) versus manual TKA (mTKA).Patients & methods: TKA procedures were identified in Medicare 100% data. Accounting for baseline differences, propensity score matching was performed 1:5. 90-day EOC and index costs, lengths-of-stay, discharge disposition and readmission rates were assessed.Results: A total of 519 rTKA and 2595 mTKA were included. Overall 90-day EOC costs were US$2391 less for rTKA (p < 0.0001). Over 90% of patients in both cohorts utilized post-acute services, with rTKA accruing fewer costs than mTKA. Post-acute savings can be attributed to discharge destination.Conclusion: rTKA incurred an overall lower 90-day EOC cost versus mTKA. Savings were driven by fewer readmissions and an economically beneficial discharge destinations.