Fig. 2From: Comparison of sciatic nerve block quality achieved using the anterior and posterior approaches: a randomised trialUltrasound image of the femoral nerve obtained with the anterior approach during the block is shown in the short axis (transverse view). FI: fascia iliaca, IM: liopsoas muscle, LA: local anesthetic, FA: femoral artery, FV: femoral vein, FN: femoral nerve, Arrows: Femoral nerve = needle.Back to article page