Deep fibular nerve

The deep fibular nerve (also known as deep peroneal nerve) begins at the bifurcation of the

Structure

Lateral side of the leg

The deep fibular nerve is the nerve of the anterior compartment of the leg and the dorsum of the foot. It is one of the terminal branches of the

• Muscular branches: Supplies four muscles in the leg:
  extensor digitorum longus, and fibularis tertius^[1]

Close to the ankle joint, the deep fibular nerve terminates by dividing into medial and lateral terminal branches.[1]

• Medial terminal branch: This nerve accompanies the
  metatarsophalangeal joint of the great toe and sends a filament to the first Interosseous dorsalis muscle.^[2]
• Lateral terminal branch - This nerve passes across the
  metatarsophalangeal joints of the second, third, and fourth toes.^[2]

Damage to the deep fibular nerve, as is possible with traumatic injury to the lateral knee, results in foot drop. The deep fibular nerve is also subject to injury resulting from lower motor neuron disease, diabetes, ischemia, and infectious or inflammatory conditions. Injury to the common fibular nerve is the most common isolated mononeuropathy of the lower extremity and produces sensory problems on the lateral lower leg in addition to foot drop.^[3]

Additional images

• 
  Cross-section through middle of leg.
• 
  Cutaneous nerves of the right lower extremity, anterior and posterior views.
• 
  Cutaneous nerves of the right lower extremity, anterior and posterior views.
• 
  Deep nerves of the front of the leg.
• 
  Nerves of the dorsum of the foot.
• 
  Deep fibular nerve

References

This article incorporates text in the public domain from page 965 of the 20th edition of Gray's Anatomy (1918)

External links

• Anatomy photo:16:st-0601 at the SUNY Downstate Medical Center - "The Foot: Nerves"