• Vivek Singh, Afamefuna M Nduaguba, William Macaulay, Ran Schwarzkopf, and Roy I Davidovitch.
• Department of Orthopedic Surgery, NYU Langone Health, The New York Hip Institute, 485 Madison Ave. 8th Floor, New York, USA.
• Arch Orthop Trauma Surg. 2022 May 1; 142 (5): 861-869.

IntroductionAs more centers introduce same-day discharge (SDD) total joint arthroplasty (TJA) programs, it is vital to understand the factors associated with successful outpatient TJA and whether outcomes vary for those that failed SDD. The purpose of this study is to compare outcomes of patients that are successfully discharged home the day of surgery to those that fail-to-launch (FTL) and require a longer in-hospital stay.Materials And MethodsWe retrospectively reviewed all patients who enrolled in our institution's SDD TJA program from 2015 to 2020. Patients were stratified into two cohorts based on whether they were successfully SDD or FTL. Outcomes of interest included discharge disposition, 90-day readmissions, 90-day revisions, surgical time, and patient-reported outcome measures (PROMs) as assessed by the FJS-12 (3 months, 1 year, and 2 years), HOOS, JR, and KOOS, JR (preoperatively, 3 months, and 1 year). Demographic differences were assessed with chi-square and Mann-Whitney U tests. Outcomes were compared using multilinear regressions, controlling for demographic differences.ResultsA total of 1491 patients were included. Of these, 1384 (93%) were successfully SDD while 107 (7%) FTL and required a longer length-of-stay. Patients who FTL were more likely to be non-married (p = 0.007) and ASA class III (p = 0.017) compared to those who were successfully SDD. Surgical time was significantly longer for those who FTL compared to those who were successfully SDD (100.86 vs. 83.42 min; p < 0.001). Discharge disposition (p = 0.100), 90-day readmissions (p = 0.897), 90-day revisions (p = 0.997), and all PROM scores both preoperatively and postoperatively did not significantly differ between the two cohorts.ConclusionOur results support the notion that FTL is not a predictor of adverse outcomes as patients who FTL achieved similar outcomes as those who were successfully SDD. The findings of this study can aid orthopedic surgeons to educate their patients who wish to participate in a similar program, as well as patients that have concerns after they failed to go home on the day of surgery.Level Iii EvidenceRetrospective Cohort Study.© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

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