Fig. 3From: Effect of local anesthetic concentration, dose and volume on the duration of single-injection ultrasound-guided axillary brachial plexus block with mepivacaine: a randomized controlled trialCombined data on sensory block duration (a) and motor block duration (b) of the present study and 13 patients receiving 15 mL and 15 patients receiving 40 mL mepivacaine 1.5 % from previously published work [7]. Data are presented as mean with SD. *p < 0.005Back to article page