Fig. 2From: Anesthetic management using a combination of anterior quadratus lumborum block and erector spinae plane block for robot-assisted partial nephrectomy: two case reportsUltrasound image of local anesthetic (LA) spread. a The anterior QLB. LA spread between the quadratus lumborum muscle and psoas major muscle (PM). b The ESPB. The needle (arrowhead) placed at the top of the transverse process of Th10. LA spread below the erector spinae muscle. ESM, erector spinae muscle; LA, local anesthetic; QLM, quadratus lumborum muscle; PM, psoas major muscle; TP, transverse process; VB, vertebral bodyBack to article page