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Fig. 1.
Peripheral nerve distribution of the lower extremity
Fig. 2.
A. Axial ultrasound image of the lateral thigh, showing lateral femoral cutaneous nerve (LFCN; hatched arrows) above the sartorius muscle (sart). Iliopsoas muscle (IP), (arrows) fat pad. B. Ultrasound-guided perineural needle positioning (arrowheads) with spread of the medication within the fat pad (arrows). L – lateral, M – medial
Fig. 3.
Ultrasound image showing the anatomic relations between the gluteus maximus (GM), piriformis muscle (PIR), the sciatic nerve (arrow) and os ischium (OI). L – lateral, M – medial
Fig. 4.
Ultrasound image showing anatomic relations between external oblique muscle (EO), internal oblique muscle (IO) and transversus abdominis muscle (TA). Arrow is depicting neurovascular bundle in the course of the ilioinguinal nerve, the injection for should be performed in its plane. (BA) bowel air. L – lateral, M – medial
Fig. 5.
Ultrasound image showing anatomic relations between (IS) ischial spine, sacrospinous ligament (arrows) and internal pudendal artery (hatched arrow). The pudendal nerve is deep lies adjunct to the internal pudendal artery. L – lateral, M – medial
Fig. 6.
Ultrasound image shows anatomic relations between adductor muscles. The anterior branch of the obturator nerve lies within fascia (arrowheads) between the adductor longus muscle (AL) and adductor brevis muscle (AB). The posterior branch of the obturator nerve lies within fascia (hatched arrows) between the adductor brevis (AB) muscle and adductor magnus muscle (AM). L – lateral, M – medial