Figure 3From: Single administration of intra-articular bupivacaine in arthroscopic knee surgery: a systematic review and meta-analysisInfluence of removing studies one by one on adjusted effect estimates for 24-h-postoperative VAS scores. Circles are effect estimates and horizontal dotted lines are 95% confidence intervals for meta-analysis of the remaining studies; the vertical center line is the pooled effect estimate for all studies.Back to article page