The peroneal nerve is on the outer part of the lower knee. This nerve sends impulses to and from the leg, foot, and toes. If it is damaged, the muscles may get weak and feeling may be lost. Foot drop may happen. This is when you can’t raise the foot.
This injury is often caused by an injury to the leg.
This can happen with:
A broken leg bone
A knee injury
Surgery to the leg or knee
Peroneal Nerve Damage After Ankle Injury and Repair
Numbness or a feeling of pins and needles in the lower leg
Pain in foot or shin
A week foot
Your doctor will ask about your symptoms and health history. A physical exam will be done. An part of your exam will be checking how well your nerves and muscles are working in your leg. Your doctor may want to watch you as you walk.
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 2016. Accessed June 23, 2018.
NINDS foot drop information page. National Institute of Neurological Disorders and Stroke website. Available at: https://www.ninds.nih.gov/Disorders/All-Disorders/Foot-Drop-Information-Page. Accessed June 23, 2018.
Stewart JD. Foot drop: where, why and what to do? Pract Neurol. 2008;8(3):158-169.
Last reviewed May 2018 by
EBSCO Medical Review Board
Rimas Lukas, MD
Last Updated: 6/23/2018
EBSCO Information Services is fully accredited by URAC. URAC is an independent, nonprofit health care accrediting organization dedicated to promoting health care quality through accreditation, certification and commendation.
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
To send comments or feedback to our Editorial Team regarding the content please email us at email@example.com. Our Health Library Support team will respond to your email request within 2 business days.