Novel approach of ultrasound-guided lateral recess block for a patient with lateral recess stenosis: A case report

Figure 3 The position of patient on the bed during the procedure and the area of the procedure is marked and zoomed in to show a clearer picture, including spinal process of L4 and L5 (blue arrow), articular process of L4 and L5 (orange arrow), puncture site (blue asterisk) and body surface projection of target site (orange circle).