The success of nerve blocks depends in part on local anesthetic concentration and volume.  What is the relationship between these factors?  Dr. Gianluca Cappelleri, Department of Anesthesia, Azienda Ospedaliera Istituto Ortopedico Gaetano Pini, Piazza Cardinal Ferrari 1, Milano, Italy, and colleagues used a double-injection Labat sciatic nerve block with variable volumes and concentrations of mepivacaine […]