Fig. 2.
Correlation between studies with a finding of liposomal bupivacaine superiority over a control and (A) overall risk of bias as measured with the Cochrane tool98,99 ; and (B and C) manufacturer conflict involving study funding, and/or an author as a paid consultant or employee. The right-hand graph (C) includes randomized, controlled trials involving exclusively peripheral nerve blocks. The total number of studies included in the category for each column is provided in brackets. Lipo, liposomal bupivacaine.