Abstract
Aim: To evaluate 90-day episode-of-care (EOC) resource consumption in robotic-assisted total hip arthroplasty (RATHA) versus manual total hip arthroplasty (mTHA). Methods: THA procedures were identified in Medicare 100% data. After propensity score matching 1:5, 938 RATHA and 4,670mTHA caseswere included. 90-day EOC cost, index costs, length of stayand post-index rehabilitation utilization were assessed. Results: RATHA patients were significantly less likely to have post-index inpatient rehabilitation or skilled nursing facilityadmissions and used fewer home health agencyvisits, compared with mTHA patients. Total 90-day EOC costs for RATHA patients were found to be US$785 less than thoseof mTHA patients (p=0.0095). Conclusion: RATHA was associated with an overall lower 90-day EOC cost when compared with mTHA. The savings associated withRATHA were driven by reduced utilization and cost of post-index rehabilitation services.
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