Which nerve provides sensation to the medial length of the calf in an ankle block?

Which nerve provides sensation to the medial length of the calf in an ankle block?

• A. Superficial peroneal
• B. Deep peroneal
• C. Sural
• D. Saphenous

Answer: (D)

The sensation along the medial length of the calf is carried by the saphenous nerve. This nerve is a branch of the femoral nerve and runs with the great saphenous vein along the medial leg, supplying cutaneous sensation from the knee down to the medial malleolus and onto the medial side of the foot. In an ankle block, targeting the saphenous nerve at the medial ankle will anesthetize this area. The other nerves cover different regions: superficial peroneal supplies most of the dorsum and anterolateral leg, deep peroneal covers the web space between the first two toes, and sural supplies the posterior-lateral leg and lateral foot, not the medial calf.

The sensation along the medial length of the calf is carried by the saphenous nerve. This nerve is a branch of the femoral nerve and runs with the great saphenous vein along the medial leg, supplying cutaneous sensation from the knee down to the medial malleolus and onto the medial side of the foot. In an ankle block, targeting the saphenous nerve at the medial ankle will anesthetize this area.

The other nerves cover different regions: superficial peroneal supplies most of the dorsum and anterolateral leg, deep peroneal covers the web space between the first two toes, and sural supplies the posterior-lateral leg and lateral foot, not the medial calf.