Tarsal tunnel syndrome is characterized by a painful compression of the tibial nerve. This nerve runs from the back of the calf to the heel and sole, traveling through the tarsal tunnel, a fibrous canal. Inflammation of surrounding tissues can cause swelling and compress the nerve, resulting in pain.
We will explore the symptoms, diagnosis, causes, prevention, and treatment options for this condition.
Tarsal tunnel syndrome symptoms
Recognizing tarsal tunnel syndrome symptoms early is essential for timely treatment. Neuralgia of the tibial nerve causes:
- Pain on the inside of the ankle worsened by weight-bearing and certain shoes;
- Discomfort that decreases with rest;
- Tingling or burning under the foot, especially when walking;
- Increased stiffness in the foot;
- Pain radiating to the knee;
- Nighttime cramping in the foot and calf.
Its symptoms may resemble other foot conditions such as plantar fasciitis, posterior tibial muscle dysfunction syndrome, Baxter’s neuritis, diabetic peripheral neuropathy, or vascular obstructions in the legs and feet.
Diagnosing tarsal tunnel syndrome
Since symptoms overlap with other plantar disorders, consulting a podiatric clinic is crucial for accurate diagnosis and appropriate treatment.
Diagnostic tests include:
- Foot ultrasound to assess soft tissue damage;
- Nerve conduction tests to detect nerve impairment;
- Biomechanical exam to evaluate foot function visually;
Digital foot x-rays may also be performed to identify bony deformities contributing to the syndrome.
Causes and aggravating factors
Tarsal tunnel syndrome results from contraction and inflammation of tissues around the tibial nerve, compressing or stretching it in the tarsal tunnel.
Though idiopathic in about 25% of cases, common contributing factors include:
- Flat foot;
- Foot fractures;
- Ankle swelling due to heart or kidney failure;
- Hypothyroidism;
- Osteoarthritis;
- Poor posture;
- Excessive foot pronation while walking;
- Inflamed ankle tendons;
- Wearing improperly fitting shoes.
Preventing the development of tarsal tunnel syndrome
Early diagnosis remains the best prevention. Additional measures to reduce symptom onset include:
- Regular low-intensity exercise;
- Maintaining healthy weight;
- Adequate rest for lower limbs;
- Choosing well-fitting, non-restrictive shoes;
- Limiting time spent on high-intensity activities like running or ballet;
- Regular foot and calf massage.
If inflammation symptoms appear, applying ice can reduce swelling. Consult a podiatrist if pain persists or swelling does not subside.
Medical treatments
The impact of tarsal tunnel syndrome on daily life usually necessitates medical intervention. Once diagnosed, treatment plans depend on severity and may include:
- Cortisone injections into the affected area;
- Custom foot orthoses or orthopedic shoes;
- Therapeutic taping to alleviate pain;
- Prescribed anti-inflammatory medications.
For severe cases, orthopedic surgery may be required to decompress the nerve and relieve discomfort.
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For further information on tarsal tunnel syndrome and foot pain management, PiedRéseau offers extensive daily content. However, visiting a podiatrist remains essential for personalized care.
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Tarsal tunnel syndrome occurs when the posterior tibial nerve is compressed, causing inflammation in the foot’s fibrous canal and acute ankle pain.
Delayed treatment increases nerve compression, complicating symptom relief.
Ill-fitting shoes pressing the ankle, excessive athletic exertion, and poor posture can induce tibial nerve compression.
Anti-inflammatory medications, well-fitting shoes, custom orthotics, cortisone injections, and bandaging can be effective nonsurgical treatments.
Surgery is required when severe nerve compression causes persistent discomfort unresponsive to other therapies.
Recovery times vary from weeks to months depending on severity and treatment progress.