• Peroneal Nerve Injury


    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
    Peroneal injury
    Neuropathy is nerve damage.
    Copyright © Nucleus Medical Media, Inc.
    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

    Risk Factors

    Factors that may increase your chance of peroneal nerve injury include:
    • Recent trauma to leg
    • Having a cast on your leg
    • Frequently sitting with legs crossed
    • Long periods of bedrest
    • Being very thin


    Peroneal nerve injury may cause:
    • Numbness or tingling in the lower leg
    • Pain in foot or shin
    • Foot weakness
    • Prickling sensation
    • Pins and needles sensation


    Your doctor will ask about your symptoms and medical history. A physical exam will be done. An important part of your physical will be checking how well your nerves and muscles are working in certain parts of your leg. Your doctor may want to watch you as you walk.
    Tests may include the following:


    Talk with your doctor about the best plan for you. Options include the following:

    Physical Therapy

    A therapist will work with you to strengthen your leg and foot muscles.


    An ankle and foot brace is used to treat foot drop.


    In some cases, surgery is used to treat a peroneal nerve injury. Surgical involves taking pressure off the nerve (decompressive surgery).


    To reduce your chance of a peroneal nerve injury:
    • Avoid crossing your legs
    • Move around frequently
    • If you work on your knees, wear protection
    • If you have a cast on your leg, let your doctor know right away if you are having numbness or tingling.


    National Institute of Neurological Disorders and Stroke http://www.ninds.nih.gov

    Ortho Info—American Academy of Orthopaedic Surgeons http://orthoinfo.org


    The Canadian Orthopaedic Association http://www.coa-aco.org

    Health Canada http://www.hc-sc.gc.ca


    Mononeuropathies. Merck Manual Professional Version website. Available at: http://www.merckmanuals.com/professional/neurologic-disorders/peripheral-nervous-system-and-motor-unit-disorders/mononeuropathies. Updated September 2012. Accessed July 19, 2013.

    NINDS foot drop information page. National Institute of Neurological Disorders and Stroke website. Available at: http://www.ninds.nih.gov/disorders/foot%5Fdrop/foot%5Fdrop.htm. Updated January 29, 2009. Accessed July 19, 2013.

    Stewart JD. Foot drop: Where, why and what to do? Pract Neurol. 2008;8(3):158-169.

    Revision Information

  • LiveWell personal health survey

    How healthy are you really? Find out – free.Learn more

    It's time to stop guessing. If you want to make some changes but just aren't sure how, the free personal health survey from LiveWell is a great place to start.

  • HeartSHAPE Spotlight

    At risk for a heart attack? Learn more

    Fight heart disease and prevent heart attacks. HeartSHAPE® is a painless, non-invasive test that checks pictures of your heart for early-stage coronary disease.

  • Calories and Energy Needs

    Calorie NeedsLearn more

    How many calories do you need to eat each day to maintain your weight and fuel your physical activity? Enter a few of your stats into this calculator to find out.

  • Ideal Body Weight

    Ideal Body WeightLearn more

    Using body mass index as a reference, this calculator determines your ideal body weight range. All you need to do is enter your height.

  • Body Mass Index

    Body Mass IndexLearn more

    This tool considers your height and weight to assess your weight status.

  • Can we help answer your questions?

    Wellmont Nurse Connection is your resource for valuable health information any time, 24 hours a day, seven days a week. Speak to a Nurse any time, day or night, at (423) 723-6877 or toll-free at 1-877-230-NURSE.