LKnative - Quadratus lumborum block 
A curved array probe is placed in the transverse plane in the flank of the patient.
5 – Place probe in the transverse plane
The patient is placed in the lateral position with the side to be anaesthetized turned upwards.
A curved array transducer (6-2 MHz) is placed in the transverse plane at the abdominal flank immediately cranial to the iliac crest.