Place the high-frequency linear probe in the axial plane across the sartorius muscle approximately 3 cm below the anterior superior iliac spine
Visualize the sartorius fascia and the fascia lata with a shallow image depth (see next page)
Insert the needle with in-plane technique from the lateral end of the probe and advance the needle tip between the fascia lata and the sartorius fascia. Inject 5-10 mL of local anaesthetic