Peroneal Tendonitis

Peroneal tendonitis is the inflammation of one or both of the peroneal tendons. There are two peroneal tendons that are located on the outside of the leg behind the ankle bone. One tendon attaches to the outside of the midfoot and the other passes under the foot and attaches to the inside of the arch. The peroneal tendons stabilize the foot and help prevent the ankle from rolling over.


Inflammation of the peroneal tendons can occur from either chronic overuse of the tendon or acute trauma.


Individuals with peroneal tendonitis typically experience pain, swelling and increase temperature over the course of the tendon. In more severe cases weakness and inability to stand on the affected limb may occur.


In additional to a history and physical exam plain film radiographs may be performed to accurately diagnosis peroneal tendonitis. In some cases a MRI may be needed to fully evaluate the damage to the tendon.


The goal of treatment is to decrease inflammation of the tendon. This is accomplished with rest, ice and elevation. Decreasing stress on the tendon can be accomplished with immobilization through the use of a Cam Walker or cast. Physical therapy and anti-inflammatories can also be used. Once the inflammation has resolved long term treatment consists of supportive shoe gear, arch supports, and orthotics. Ankle braces can also be used to reduce stress on the tendons.

*For products to decrease stress or immobilize the tendons we recommend

*If you are experiencing pain on the outside of your ankle you may have peroneal tendonitis. Please call our office (numbers below) or fill out the contact form and we will contact you.


I suffered with chronic heel pain for over a year. I finally went to see Dr. Fritz who examined me and performed X-rays on the same visit. He diagnosed me with plantar fasciitis. After a course of physical therapy, a cortisone shot and a pair of custom orthotics I’m able to walk pain free again.

- Jeff C.

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