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The sural nerve (L4-S1) is a cutaneous sensory nerve of the posterolateral calf with cutaneous innervation to the distal one-third of the lower leg. [1] Formation of the sural nerve is the result of either anastomosis of the medial sural cutaneous nerve and the sural communicating nerve, or it may be found as a continuation of the lateral sural cutaneous nerve [2] traveling parallel to the ...
Cutaneous innervation of the lower limbs is the nerve supply to areas of the skin of the lower limbs (including the feet) which are supplied by specific cutaneous nerves. Modern texts are in agreement about which areas of the skin are served by which nerves , but there are minor variations in some of the details.
The intermediate dorsal cutaneous nerve divides into four dorsal digital branches, which supply the medial and lateral sides of the third and fourth, and of the fourth and fifth toes. The lateral dorsal cutaneous nerve from the sural nerve turns into a dorsal digital nerve and supplies the lateral side of the fifth toe.
Another branch observed, that is mentioned in passing in previous literature is the medial branch of the lateral sural cutaneous nerve. [3]In a 2021 study by Steele et al. (Annals of Anatomy), a medial branch of the lateral sural cutaneous nerve was observed in approximately 36% of lower extremities dissected (n=208) with an average diameter of 1.47 ± 0.655 mm with a 95% CI of 1.31 – 1.625 mm.
The medial sural cutaneous nerve originates from the posterior aspect of the tibial nerve of the sciatic nerve. [2] [3] It descends between the two heads of the gastrocnemius muscle. [2] [3] Around the middle of the back of the leg, it pierces the deep fascia to become superficial. [3] It unites with the lateral sural cutaneous nerve to form ...
It passes distally along the lateral part of the dorsum of foot. It gives rise to the lateral dorsal digital nerve of the 5th toe, and sometimes also the medial dorsal digital nerve of the 5th toe as well as the lateral dorsal digital nerve of the 4th toe [1] (thus replacing branches of the intermediate dorsal cutaneous nerve [2]).
She originated the term sural nerve complex to fully encompass all contributions to the terminally named sural nerve (and later lateral dorsal cutaneous nerve). Further research would go on to use the sural nerve complex terminology to discuss the lateral sural cutaneous nerve, the medial sural cutaneous nerve, the sural communicating nerve and ...
Superficial fibular nerve or peroneal nerve (innervating the dorsal aspect of the foot) 2. Tibial nerve (innervating the plantar surface of the foot)3. Sural nerve (innervating the lateral portion of the foot)4. Superficial branch of radial nerve (innervating forearm and hand on the thumb side) Stance and swing phase of a gait cycle