A Comparative Study of Periarticular Infiltration with Dexmedetomidine versus Ketorolac as an Additive to Ropivacaine after Total Knee Arthroplasty: A Prospective, Randomized Double-Blind Study.

Background: Periarticular infiltration (PAI) analgesia has been found to be an effective analgesia modality after total knee arthroplasty (TKA). Dexmedetomidine has many beneficial effects on postoperative analgesia by different routes, but studies on PAI are lagging.

Aims And Objectives: In this study, we compared postoperative analgesia after PAI with dexmedetomidine versus ketorolac as an additive to ropivacaine after TKA.