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Posterior quadratus lumborum block

This video shows a posterior QL block with the block needle inserted in plane to the transducer, with an anterior (lateral) to posterior (medial) trajectory.

EO: external oblique muscle; LD: latissimus dorsi muscle; IO: internal oblique muscle; QL: quadratus lumborum muscle; TP: transverse process; VB: vertebral body.

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