A sharp pop on the outside of your ankle during a ski run, a hard cut on the soccer field, or a bad landing on the basketball court can leave you wondering if it was just a sprain — or something more. When the tendons that stabilize your ankle slip out of place, ordinary movement suddenly feels unstable, painful, and unpredictable. Understanding what’s happening and how to fix it can mean the difference between a full recovery and chronic ankle problems down the road.
At Sweeney Foot & Ankle Specialists, Dr. D. Sean Sweeney, DPM, FACFAS, and Dr. Christy Leahey, DPM, FACFAS, deliver expert diagnosis and treatment for peroneal tendon injuries using both proven conservative methods and advanced surgical techniques. Voted Best Podiatrist in The Woodlands by Living Magazine every year since 2012, the practice combines decades of clinical experience with leading-edge technology to help athletes and active adults get back on their feet.
What Is Peroneal Tendon Dislocation?
The peroneal tendons — the Peroneus Brevis and Peroneus Longus — run behind the outside ankle bone (the fibula) and help your foot turn outward, a movement called eversion. Often nicknamed “stirrup” tendons, they also support the arch of your foot. A band of tissue called the peroneal retinaculum normally holds these tendons securely in their groove.
When the retinaculum stretches or tears, the tendons can slip out of place and roll over the edge of the fibula. This causes them to function abnormally and can lead to further tendon damage if left untreated.
Causes and Symptoms
Peroneal tendon dislocation is most often linked to athletic injuries — snow skiing is the leading cause, followed by football, basketball, and soccer. It can also occur after a severe ankle sprain in non-athletes. Common signs include:
- A popping sensation or sharp pain on the outside of the ankle
- Swelling behind the lateral malleolus (outer ankle bone)
- Tenderness when pressure is applied to the back of the ankle
- A visible or felt “snapping” of the tendons during foot movement
- Ongoing instability, especially during sports or uneven walking
Diagnosis
Diagnosis begins with a hands-on physical exam. Your provider may ask you to forcefully turn your foot outward against resistance to reproduce the dislocation. X-rays are typically taken to rule out other bone injuries, and an MRI may be ordered to evaluate the position and condition of the tendons and check for tears.
Non-Surgical Treatment
Mild injuries — where the retinaculum is stretched but the tendons remain in place — often respond well to conservative care. Initial treatment includes crutches, a splint or compressive wrap, ice, and anti-inflammatory medication to reduce swelling. Once swelling subsides, the foot is typically immobilized in a cast or removable boot for about 6 weeks with no weight bearing.
For lingering pain or inflammation, the practice offers MLS laser therapy, an FDA-cleared, non-invasive treatment with an 85–90% efficacy rate for reducing pain and accelerating tissue repair. In-office physical therapy is also available to help restore strength and stability.
Surgical Treatment
Moderate to severe injuries — or cases that fail conservative care — usually require surgery. The procedure tightens the torn or stretched retinaculum using sutures and may involve anchors or drill holes in the fibula to secure the repair. About 25% of patients are born without a peroneal groove behind the fibula, and if discovered during surgery, a groove can be created to keep the tendons stable.
Recovery typically involves 4–6 weeks of non-weight-bearing in a splint or cast, followed by 2–4 weeks of protected weight-bearing and 3–6 weeks of physical therapy.
Why Choose Sweeney Foot & Ankle Specialists for Peroneal Tendon Dislocation in The Woodlands, TX?
With more than 20 years of trusted service to Houston-area families and athletes, Sweeney Foot & Ankle Specialists has earned a reputation for compassionate, leading-edge care. Dr. Sweeney and Dr. Leahey are both board-certified through the American College of Foot and Ankle Surgeons, bringing extensive experience in both medical and surgical management of complex tendon and ankle injuries.
The practice stands apart by combining advanced technology with a patient-centered approach that emphasizes prompt appointments, clear communication, and personalized recovery plans. From children to seniors, every patient receives care tailored to their goals and lifestyle.
Take the Next Step Toward Recovery
Peroneal tendon dislocation is treatable, and the sooner you act, the better your outcome. Whether you need conservative therapy, surgical repair, or guidance navigating recovery, the team at Sweeney Foot & Ankle Specialists is ready to help you regain stability, strength, and confidence in every step.
Schedule your consultation today at our offices in The Woodlands, TX, at (281) 292-4944 or Magnolia, TX, at (281) 789-4956.