Continuous intraarticular and periarticular levobupivacaine for management of pain relief after total knee arthroplasty: A prospective randomized, double-blind pilot study

57 patients scheduled for total knee arthroplasty were randomized to be treated postoperatively with either a 48-hour intra-articular infusion of levobupivacaine or control. The purpose of this study was to assess if IA levobupivacaine was effective for reducing postoperative pain and narcotic consumption. Data showed lower mean values for pain scores and narcotic consumption in the IA levobupivacaine group compared to the control group, although the significance of the differences was not stated or reported.