Fig. 1From: Sciatic obturator femoral technique versus spinal anaesthesia in patients undergoing surgery for fixation of open tibial fractures using Ilizarov external fixator. A randomised trialUltrasound images obtained during femoral nerve block. Ultrasound image of the needle path to block the femoral nerve. The needle (white line) as shown pierces the fascia iliaca lateral to the femoral nerve (FN) marked by yellow arrow and the needle tip is advanced along the deep border of the nerve. FA, femoral arteryBack to article page