Dislocation of the Peroneal Tendons
Peroneal tendon dislocation occurs when the tendons on the outer side of the ankle slip out of their normal groove behind the ankle bone. This usually happens after a sudden ankle injury that damages the supporting ligament called the peroneal retinaculum. The condition can cause pain, swelling, and a snapping sensation in the ankle. Physiotherapy at ACE Physio Sports helps restore ankle strength, stability, and function following treatment or surgery.


What is a Dislocation of the Peroneal Tendons?
The peroneal tendons run along the outside of the ankle and help stabilise the foot and ankle during movement. These tendons pass through a groove behind the outer ankle bone (the fibula) and are held in place by a strong band of tissue known as the peroneal retinaculum.
If this retinaculum is damaged or torn, the tendons can slip out of their normal position. This is known as peroneal tendon dislocation.
When the tendons move out of the groove, it can lead to pain, instability, and difficulty performing activities such as walking, running, or changing direction.
How Does Peroneal Tendon Dislocation Occur?
Peroneal tendon dislocation usually occurs after a forceful ankle injury.
This often happens when the foot is twisted inward suddenly, placing excessive strain on the peroneal retinaculum.
Common causes include:
- Sports injuries involving sudden direction changes
- Ankle sprains
- Falls or accidents
- High-impact activities such as running or jumping
Although this mechanism commonly causes ankle ligament sprains, it can also damage the retinaculum, allowing the peroneal tendons to slip out of place.
Symptoms of Peroneal Tendon Dislocation
One of the most noticeable symptoms is a popping or snapping sensation on the outside of the ankle.
Other symptoms may include:
- Pain along the outside of the ankle
- Swelling and tenderness behind the outer ankle bone
- Bruising around the ankle
- A feeling of instability or weakness in the ankle
- A visible movement of the tendons over the ankle bone
- A snapping or clicking sensation during ankle movement
- Difficulty walking or bearing weight on the affected foot
In some cases, the tendons may move out of place during movement and return to position when the muscles relax.
What Should I Do if I Suspect Peroneal Tendon Dislocation?
If you suspect a peroneal tendon dislocation, it is important to seek assessment from a qualified healthcare professional or physiotherapist.
Early diagnosis is important to prevent further damage to the tendons or surrounding structures.
In the early stages, you can help manage pain and swelling by following the RICE protocol:
- Rest – avoid activities that stress the ankle
- Ice – apply ice packs to reduce swelling and pain
- Compression – use an elastic bandage to control swelling
- Elevation – keep the ankle raised above heart level when possible
A physiotherapist or doctor may recommend imaging tests such as ultrasound or MRI to confirm the diagnosis.
Physiotherapy Treatment for Peroneal Tendon Dislocation
Physiotherapy is essential in the rehabilitation process after treatment or surgery for peroneal tendon dislocation.
At ACE Physio Sports, rehabilitation focuses on restoring ankle mobility, strength, and stability.
Treatment may include:
- Pain management techniques
- Gentle range of motion exercises
- Progressive weight-bearing exercises
- Strengthening exercises for ankle and calf muscles
- Balance and proprioception training
- Functional movement training
- Sport-specific rehabilitation exercises
These treatments help restore normal ankle function and reduce the risk of future injuries.
Recovery After Surgery for Peroneal Tendon Dislocation
In many cases, surgery may be required to repair the damaged peroneal retinaculum and stabilise the tendons.
After surgery, physiotherapy is important for a successful recovery.
Rehabilitation typically progresses through stages including:
- protected movement and swelling reduction
- gradual restoration of ankle mobility
- strengthening exercises for ankle stabilising muscles
- balance and coordination training
- gradual return to sports or physical activity
Following a structured physiotherapy programme significantly improves recovery outcomes.
Long-Term Outlook for Peroneal Tendon Dislocation
With appropriate treatment and rehabilitation, the long-term outcome for peroneal tendon dislocation is usually very good.
Most individuals can return to their normal activities and sports once strength and stability have been restored.
However, without proper treatment, complications may include:
- chronic ankle instability
- persistent pain
- repeated tendon dislocations
Early treatment and physiotherapy help prevent these long-term issues.
Why Choose ACE Physio Sports?
At ACE Physio Sports, our physiotherapists specialise in treating ankle and sports injuries.
We provide:
- personalised rehabilitation programmes
- expert physiotherapy for ankle injuries
- guidance for safe return to sport and activity
- injury prevention strategies
Our goal is to help you recover safely and regain full ankle function.
Book an Appointment
If you are experiencing ankle pain, instability, or symptoms of tendon dislocation, our physiotherapists can help.
To arrange an appointment, please call +65 81535374 or visit acephysiosport.com.
Frequently Asked Questions
Why does my foot hurt most in the morning or when I first start walking?
First-step pain is a classic feature of many foot and ankle conditions, including Dislocation of the Peroneal Tendons. It occurs when irritated structures are suddenly loaded after a period of rest. Physiotherapy addresses the underlying cause and provides strategies to reduce this painful cycle.
Can I keep walking or exercising with Dislocation of the Peroneal Tendons?
In most cases, complete rest is counterproductive. Low-impact activity and physiotherapy-guided exercises maintain fitness while allowing healing. Your therapist will advise which activities are safe and how to progress load gradually through each stage of recovery.
How long does Dislocation of the Peroneal Tendons usually take to resolve with physiotherapy?
Recovery typically takes 6–12 weeks, though chronic cases may take longer. Physiotherapy accelerates healing through load management, manual therapy, and progressive strengthening of the foot and ankle musculature.
Ready to start your recovery?
Our specialist physiotherapists are here to help. Book a consultation today.
Book an Appointment