Supplementary material: Robotic-assisted total hip arthroplasty: an economic analysis

This is a peer-reviewed supplementary table for the article 'Robotic-assisted total hip arthroplasty: an economic analysis' published in the Journal of Comparative Effectiveness Research.Supplementary Table 1: Index total knee arthroplasty codingSummary: 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 4,670 mTHA cases were included. 90-day EOC cost, index costs, length of stay and post-index rehabilitation utilization were assessed. Results: RATHA patients were significantly less likely to have post-index inpatient rehabilitation or skilled nursing facility admissions and used fewer home health agency visits, compared with mTHA patients. Total 90-day EOC costs for RATHA patients were found to be US$785 less than those of mTHA patients (p = 0.0095). Conclusion: RATHA was associated with an overall lower 90-day EOC cost when compared with mTHA. The savings associated with RATHA were driven by reduced utilization and cost of post-index rehabilitation services.

本表为发表于《比较效果研究杂志》的论文《机器人辅助全髋关节置换术：一项经济分析》的同行评审补充表格。补充表1：指数全膝关节置换术编码概要：目的：旨在评估机器人辅助全髋关节置换术（RATHA）与手工全髋关节置换术（mTHA）在90天治疗周期（EOC）内的资源消耗。方法：在医疗保险100%数据中识别了全髋关节置换术病例。在实施倾向评分匹配1:5后，纳入了938例RATHA和4,670例mTHA病例。评估了90天EOC成本、指数成本、住院时长及索引后的康复利用情况。结果：与mTHA患者相比，RATHA患者显著降低了索引后住院康复或专业护理机构入院的可能性，并减少了家庭健康护理机构的访问次数。RATHA患者的总90天EOC成本比mTHA患者低785美元（p = 0.0095）。结论：与mTHA相比，RATHA与整体较低的90天EOC成本相关。RATHA带来的节约主要源于索引后康复服务利用率和成本的降低。