Adductor canal blockade versus continuous epidural analgesia after total knee joint replacement: A retrospective cohort study.

Background: Total knee arthroplasty is associated with intense pain postoperatively. Thus, adequate pain relief is essential in the immediate postoperative period to enable ambulation, initiation of physiotherapy, and prevention of postoperative complications. The objective of this study was to compare the effectiveness and early outcomes of adductor canal blockade (ACB) and continuous epidural analgesia (CEA) in patients who underwent a unilateral total knee replacement (TKR).