ABSTRACT
Stimulating both tibial and common peroneal nerves has been described, with the local anesthetic dose divided equally between tibial and peroneal components. Aspiration of blood signifies that the needle is too deep and anterior. If neither component is localized, the needle is withdrawn to the skin, the femur is reidentified, and the needle angle is redirected in 5° increments until an appropriate motor response is elicited. Rarely, a more proximal skin insertion site is required.
