Application of Anterior Quadratus Lumborum Block at the Lateral Supra-arcuate Ligament Under Laparoscopic Direct Vision in Laparoscopic Renal Surgery

The urologists find the inner arcuate ligament. The scalp needle is inserted from the midpoint of the lower edge of the inner or outer arcuate ligament towards the head to the dorsal side of the diaphragm. After withdrawing without blood, air, or cerebrospinal fluid, 2 ml of normal saline is first administered to observe the fluid spreading towards the head Then, 20 ml of 0.375% ropivacaine hydrochloride injection is administered.

The urologists give local infiltration anesthesia with 20 ml of 0.375% ropivacaine hydrochloride injection.