Comparison of safety and efficiency between sequential simultaneous bilateral and staged bilateral total knee arthroplasty at a high-volume center: a retrospective cohort study.

The treatment strategy remains controversial for bilateral end-stage osteoarthritis, particularly with regard to patient safety. The aim of this study was to compare the safety and clinical results of sequential simultaneous bilateral total knee arthroplasty (ssBTKA) and staged bilateral total knee arthroplasty (staBTKA). Patients who underwent either simultaneous (n=168) or staged (n=63) bilateral total knee arthroplasty in a single center between February 2017 and April 2021 were identified retrospectively.