What does the lateral sural nerve innervate?
It traverses the proximal lateral compartment of the leg to enter the anterior compartment, where it tracks distally and innervates the tibialis anterior, extensor hallucis longus, peroneus tertius, and extensor digitorum longus muscles.
What happens if the sural nerve is damaged?
Damage or compression of the sural nerve can result in burning pain and diminished sensation or loss of sensation (numbness). This nerve passes down from the back of the knee along the outside of the lower leg. It’s located along the surface of the lower one-third of the leg.
Is the sural nerve a cutaneous nerve?
The sural nerve is a cutaneous nerve, providing only sensation to the posterolateral aspect of the distal third of the leg and the lateral aspect of the foot, heel, and ankle.
What is the sural cutaneous nerve?
Anatomical terms of neuroanatomy The lateral sural cutaneous nerve (lateral cutaneous branch of the sural nerve) supplies the skin on the posterior and lateral surfaces of the leg. The lateral sural cutaneous nerve originates from the common peroneal nerve.
How do you know if you have a sural nerve?
In transverse section, it was readily identified within the saphenous compartment. It lies in close proximity to the SSV only in the distal third of the limb, where the two components of the nerve: MSCN, a branch of the tibial nerve; and LSCN, a branch of the common peroneal nerve join together.
Where is lateral sural cutaneous?
The lateral sural cutaneous nerve is a branch of the common fibular (peroneal) nerve (L4-S2) that passes over the lateral head of the gastrocnemius muscle. Upon reaching the distal one-third of the leg, these nerves merge to form the sural nerve.
What does the sural nerve branch off of?
The medial sural cutaneous nerve, a terminal branch from the tibial nerve, joins with the lateral sural cutaneous nerve, a terminal branch from the common fibular nerve, to form the sural nerve in the distal third of the calf. The nerve roots commonly involved are S1 and S2.
How serious is sural nerve pain?
The sural nerve conveys sensory information regarding the lower calf and outer foot to the brain- damage to this nerve can result in extreme pain in the leg or foot. However, if damage does occur, it can be treated by removing part of the nerve.
What muscles are innervated by the sural nerve?
Here, the tibial nerve further gives rise to branches that contribute towards the sural nerve, that innervates the posterolateral aspect of the leg muscle. The tibial nerve remains its course down the leg, posterior to the tibia. While its descent, it provides the deep muscles of the posterior leg.
What are the causes of bilateral median nerve neuropathy?
Carpal Tunnel Syndrome. The carpal tunnel is a narrow,tunnel-like structure in the wrist.
What does sural nerve mean?
The sural nerve is a purely cutaneous nerve formed by variable contributions from the tibial and peroneal nerve in the popliteal fossa. It typically begins as the medial sural cutaneous nerve formed by the tibial nerve that travels between the two heads of the gastrocnemius muscle.