Same-day discharge to home is feasible and safe in up to 75% of unselected total hip and knee arthroplasty.

Purpose: Though numerous studies highlighted benefits of ambulatory total joint arthroplasty (TJA), most had selected patients with age and comorbidities thresholds. We aimed to report proportions of unselected TJAs that could be scheduled for and operated in ambulatory settings, and to determine factors that hinder same-day discharge (SDD).

Methods: We studied 1100 consecutive primary TJAs (644 THAs and 456 TKAs) that were prepared following a multidisciplinary protocol for patient education and logistical preparation.