Peroneal tendonitis is an inflammation of the tendons crossing the lateral side of the ankle. This can develop for several reasons including ankle sprains, fracture of the fibula, overuse from running, or from somebody with a high arch.
Symptoms include sharp pain along the lateral aspect of the ankle and foot with pushing off of the toes. Swelling and general soreness usually come along following activity.
Physical examination will show point tenderness along the peroneal tendons as the follow behind the ankle and insert into the foot. Resistance to turning your ankle outward (eversion) may also be weak and reproduce pain. A physician may order x-rays, an MRI, or ultrasound to find an underlying condition and to determine if there is a tear in the tendons or if it is simply inflammation.
Treatment for this condition includes rest for which a walking boot may be ordered. The physician may choose to prescribe an anti-inflammatory to reduce pain and swelling. Physical therapy is usually a necessity to restore normal range of motion and strength and to further determine the underlying imbalances associated with this condition.
Surgical treatment of peroneal tendonitis is a last resort and includes repairing the tear in the involved tendon or tendon sheath. Recovery is length at 3-4 months, but patients are often able to resume their normal activities.
Submitted by Brian Manning, MPT, CSCS