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 may become weak. A condition called foot drop can occur. Foot drop is the inability to raise the foot upwards.
The sooner a peroneal nerve injury is treated, the better the outcome may be. If you suspect you have this condition, contact your doctor promptly.
A peroneal nerve injury is commonly caused by an injury to the leg. Other causes include:
Trauma to the nerve that can occur with:
Broken leg bone
Surgery to leg or knee
Peroneal Nerve Damage After Ankle Injury and Repair
If you have any of these symptoms do not assume it is due to a peroneal nerve injury. These may be caused by other conditions. Tell your doctor if you have any of these:
Pain in foot or shin
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. You will be asked to move your leg and foot in certain ways. Your doctor may want to watch you as you walk. You may be referred to a neurologist, a doctor who specializes in the nervous system.
Tests may include the following:
—test that uses radiation to form an image; used to rule out a back problem
—test that uses magnetic waves to form an image; used to look for masses involving the nerve
Nerve conduction studies and
(EMG)—test that assesses how well the nerves and muscles work
Talk with your doctor about the best plan for you. Options include the following:
A therapist will work with you to strengthen your leg and foot muscles.
is used to treat foot drop.
In some cases, surgery is used to treat a peroneal nerve injury. Surgical options include repairing the nerve, taking pressure off the nerve (decompressive surgery), or grafting a new nerve into place.
Avoid crossing your legs to help reduce your chance of getting a peroneal nerve injury.
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