Re-initiation of elective total knee arthroplasty with an adapted pathway during the 2020 COVID-19 pandemic was safe and effective.

ABSTRACT

INTRODUCTION: In June 2020 when elective total knee arthroplasty (TKA) resumed after the initial COVID-19 surge, we adapted our TKA pathway focusing on a shorter hospitalization, increased home discharge, and use of post-discharge telemedicine and telerehabilitation. The purpose of this study was to evaluate if changes in postoperative care affected early TKA outcomes. MATERIALS AND METHODS: Five hundred and fifty-four patients who underwent elective primary unilateral TKA for primary osteoarthritis between June and August 2020 (study group) were matched 11 for age, sex, body mass index, and Charlson comorbidity index with control patients who underwent surgery between August and November 2019. Study patients were discharged 25 h earlier on average compared to controls, more frequently on the same-day or postoperative day-1 (24.9% vs. 16.1%; p = 0.001), and more frequently home (97.3% vs. 83.8%; p < 0.001). Study patients used telemedicine (11.7% vs. 0%; p < 0.001) and telerehabilitation (19.7% vs. 2.5%; p < 0.001) at higher rates than controls. Generalized estimating equations, Mann-Whitney U, and Chi-Square tests were used to compare outcomes between groups including unscheduled office visits, ER visits, readmissions, Center for Medicare and Medicaid Services (CMS) complications, manipulation under anesthesia (MUA), and patient-reported outcomes measures (PROMs). RESULTS: Rates of emergency room visits, readmissions, CMS complications, MUA, and improvements in PROMs were similar between cohorts. Study patients experienced higher rates of unscheduled outpatient visits (9.2% vs. 4.9%; p = 0.004), predominantly due to wound complications. CONCLUSIONS: A protocol implemented during the COVID-19 pandemic that leveraged a shortened hospitalization, higher rates of home discharge, and increased use of telemedicine and telerehabilitation was safe and effective.