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Fig. 1 | BMC Anesthesiology

Fig. 1

From: Anterior Quadratus Lumborum block area comparison in the three different volumes of Ropivacaine: a double-blind, randomized controlled trial in healthy volunteers

Fig. 1

Photographs and ultrasonographic images demonstrate the lateral decubitus position for the QLB. A Depiction of needle position and probe placement in each group; B corresponding ultrasonographic images. Arrow indicates the needle trajectory orientation. ESM: erector spine muscle; TP: transverse process; PM: psoas muscle; QLM: quadratus lumborum

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