Additive effect of continuous adductor canal block and liposomal bupivacaine periarticular injection in total knee arthroplasty

Background Novel methods of postoperative analgesia for total knee arthroplasty (TKA) have demonstrated improved functional outcomes and decreased narcotic consumption. These approaches include continuous adductor canal blocks (CACB) and periarticular injection (PAI). There is a lack of current understanding regarding the effect of these modalities on narcotic usage, functionality, and pain when both PAI and CACB are utilized compared to PAI alone.