Figure 4

Sensory blockade score (median and range) for saphenous and sciatic nerves; 1, no effect (normal response to stimulus, with vigorous or rapid withdrawal of the limb and/or vocalization); 2, partial block (attenuated response to stimulus, with slower withdrawal of the limb without vocalization); 3, complete block (absence of response to stimulus without limb movement or head movement toward the stimulated area)22; * significantly different from NaCl group.