Peroneal Nerve Injury
Pronounced: Purr–o-knee-al nerve injuryEn Español (Spanish Version)
The peroneal nerve is found on the outside part of the lower knee. This nerve is responsible for transmitting impulses to and from the leg, foot, and toes. When damaged, the muscles innervated by the nerve may become weak and sensation may be lost. A condition called foot drop can occur. Foot drop is the inability to raise the foot upwards.
A peroneal nerve injury is commonly caused by an injury to the leg.
Trauma to the nerve can occur with:
- Broken leg bone
- Knee injury
- Surgery to leg or knee
- Ankle injuries
Peroneal Nerve Damage After Ankle Injury and Repair
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Prolonged pressure on the nerve can occur with:
- Sitting position
- Cast on lower leg, particularly if it is too tight
- Blood clots, tumors, or other masses
Last reviewedJuly 2013by Rimas Lukas, MD; Brian Randall, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.