Regional anesthesia and pain medicine
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Reg Anesth Pain Med
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Reg Anesth Pain Med · Oct 2023
Evaluating two approaches to the erector spinae plane block: an anatomical study.
Studies show variable spread with thoracic erector spinae plane (ESP) injections. Injection sites vary from lateral end of the transverse process (TP) to 3 cm from the spinous process, with many not describing the precise site of injection. This human cadaveric study examined dye spread of ultrasound-guided thoracic ESP block at two needle locations. ⋯ An ESP injection administered between TPs exhibits more extensive spread than a medial TP injection in a human cadaveric model.