Distribution of a lidocaine-methylene blue solution staining in brachial plexus, lumbar plexus and sciatic nerve blocks in the dog

Volumes of 0.3 and 0.05 mL kg−1 produced sufficient distribution for performing brachial plexus, and sciatic nerve blocks, respectively. Additionally, a volume of 0.4 mL kg−1 might also be adequate for a lumbar plexus block (no statistical significance was reached).