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Insights into Imaging
Fig. 2 | Insights into Imaging

Fig. 2

From: Enhancing diagnosis and treatment of superior cluneal nerve entrapment: cadaveric, clinical, and ultrasonographic insights

Fig. 2

A A, B, C and D inside the squares correspond to probe positioning for the subgraphs of A, B, C and D for scanning of the superior cluneal nerves (yellow lines and black arrowheads). B The probe is placed in the horizontal plane over the posterior superior iliac spine (PSIS) and (C) is then relocated more cranially to see the medial branch of the superior cluneal nerve embedded underneath the thoracolumbar fascia (white dashed line). D Moving the probe more cranially, the superior cluneal nerve is seen over the erector spinae muscle. E Shifting the probe more laterally, the three branches of the superior clunear nerve are identified along the posterior iliac crest (PIC). F Ultrasound guided hydrodissection is performed for the superior cluneal nerves using the in-plane, medial-to-lateral approach. MU, multifidus; GMAX, gluteus maximus; LO, longissimus; IC, iliocostalis; arrows, needle trajectory

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