Fig. 2From: A prospective, randomized trial of liposomal bupivacaine compared to conventional bupivacaine on pain control and postoperative opioid use in adults receiving adductor canal blocks for total knee arthroplastyOverall opioid dose (MME), by time period after total knee arthroplasty, stratified by ACB bupivacaine typeACB, adductor canal block; MME, milligram morphine equivalents; PACU, post-anesthesia care unit; POD, postoperative day (defined as consecutive 24 h periods following discharge from the PACU); SE, standard error. a Mean (SE) opioid dose at each time point was estimated by repeated measures ANOVA; MME was entered as zero when a participant did not receive opioidsBack to article page