Fig. 4From: Liposomal bupivacaine administration is not superior to traditional periarticular injection for postoperative pain management following total knee arthroplasty: a meta-analysis of randomized controlled trialsFunnel plot of VAS score. VAS POD1 of Declaire 2017 was not included in the funnel plot due to extremely high standard error (MD = 0.69, SE = 3.08)Back to article page