The two tendons located immediately behind the ankle bone are called the peroneal tendons. If one or both of these tendons abnormally slip out of place due to congenital bone structure abnormalities or traumatic injury, a patient can develop peroneal subluxation symptoms, according to medical experts with the American College of Foot and Ankle Surgeons. Peroneal subluxation symptoms can be uncomfortable and require prompt medical attention.
Pain, Swelling or Bruising
When the peroneal tendons slip out of place, or subluxate, patients can experience foot pain, which can range from mild to severe and may be most apparent when a patient attempts to turn the affected foot outward. Sensations of pain typically localize to the back of the heel, near the outside of the ankle bone, report medical professionals with the Foot and Ankle Clinic at Lindsay Park. Peroneal subluxation due to traumatic injury can also result in swelling or bruising due to tissue damage within the affected foot. Pain, swelling or bruising can be uncomfortable and typically persist until the damaged peroneal tendon is repaired and fully heals.
Snapping or Clicking
Patients can develop an unusual snapping or clicking sensation within the affected ankle as a symptom of peroneal tendon subluxation, report health experts with Foot Health Facts, a website supported by the American College of Foot and Ankle Surgeons. Snapping or clicking occurs when the misplaced tendons catch on the bones within the ankle. This unusual sensation can occur in conjunction with intermittent foot pain in certain patients.
Ankle Weakness
In healthy patients, the peroneal tendons connect the muscles to the bones within the foot. If these tendons slip out of place due to peroneal tendon subluxation, patients can have difficulty controlling the foot muscles. As a result, they can experience ankle weakness or instability, according to the American College of Foot and Ankle Surgeons. Ankle weakness or instability can make it difficult to stand or walk around normally.
