Fig. 24

Sonoanatomy of the sural nerve. Short-axis views of the sural nerve from the lateral ankle to the mid-leg. A At the lateral ankle, the nerve is identified as a small honeycomb structure adjacent to the small saphenous vein in the space between the peroneal tendons anteriorly and the Achilles tendon posteriorly. B Just proximal to the ankle, the sural nerve is still running adjacent to the small saphenous vein. C The sural nerve at the distal leg runs in the subcutaneous tissue layer and moves away from the vein. D The sural nerve at the calf running in the groove between the two heads of the gastrocnemius