Sites of injection of local anesthesia in finger and hand surgery. A, Volar injections. When only a sensory block of finger is required (SIMPLE technique), 2 mL are injected into the areas designated by the blue dots. To obtain hemostasis and local anesthesia for palmar finger surgery, 1% lidocaine with epinephrine 1:100,000 is injected into midline subcutaneous fat between digital nerve in each area designated by dot. B, Dorsal injections. For hemostasis and local anesthesia, injection is into midline subcutaneous fat in each area designated by dot. In both volar and dorsal injections, 2 mL are injected at site of blue and red dots, 1 mL at site of green dots, and 5 mL at site of the orange dots.