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Background and Aims The rising demand for total hip arthroplasties (THA) has contributed to an increase in outpatient procedures. In the context of implementing a same-day hip (SDH) program at a tertiary care center in Belgium, we present our findings and identify factors associated with successful same-day discharge.Methods A retrospective analysis of 100 outpatient THA cases has been performed since May 2023 at Ziekenhuis Oost-Limburg (ZOL), Belgium. Patient demographics, perioperative management, anesthesia techniques, and discharge outcomes were reviewed. Medical records were examined to identify reasons for impaired discharge. Statistical analyses were performed to compare successful and unsuccessful SDD cases. In September 2023, three anesthesia protocol modifications were introduced based on follow-up feedback: increased dexamethasone dosage, intramuscular ephedrine administration, and exclusion of intrathecal fentanyl.Results Same-day discharge was achieved in 85 patients. The primary reason for discharge failure was orthostatic intolerance (67%). General anesthesia was associated with more in-hospital stays (p<0.05). A positive trend in SDD rates was observed following the anesthesia protocol modifications.Abstract EP125 Figure 1The number of patients included per month from May 2023 to April 2024 and the percentage of patients with successful same-day dischargeConclusions Systematic follow-up proved valuable in identifying discharge barriers and facilitating timely interventions to improve the SDD success rate. Future research should explore the broader applicability of the interventions in outpatient THA programs and individual effect on SDD success rates.