Cost Difference in Performing Total Knee Arthroplasty at Ambulatory Surgical Centers Compared With Hospital-Based Outpatient Departments: Observational Study

As total knee arthroplasty (TKA) further transitions toward an outpatient procedure, it becomes important to identify the resource utilization after TKAs at different outpatient facilities. The objective of this study was to determine the 90-day cost of patients who underwent TKAs at an ambulatory surgical center (ASC) or a hospital outpatient department (HOPD).