What Is Tarsal Tunnel Syndrome?

The tarsal tunnel Syndrome (TTS) is a narrow anatomical passage behind the inner ankle (medial malleolus), held together by bones and the flexor retinaculum. When the posterior tibial nerve becomes compressed within this tunnel, it leads to (TTS) much like carpal tunnel syndrome affects the wrist nerve.

Imagine a narrow passageway on the inside of your ankle called the tarsal tunnel. Inside this tunnel runs the posterior tibial nerve, along with tendons and blood vessels. When this nerve becomes compressed, it can cause burning pain, tingling, numbness, and weakness in your foot. It can make every step uncomfortable.

Why Does It Happen?

Several factors can lead to nerve compression inside the tarsal tunnel:

• Flat feet or high arches – These alter the way weight is distributed, increasing pressure on the nerve.
• Ankle injuries – Sprains, fractures, or swelling can narrow the tunnel.
• Growths or swelling – Bone spurs, cysts, varicose veins, or lipomas can crowd the space.
• Systemic conditions – Diabetes, arthritis, and hypothyroidism can increase nerve vulnerability.

What Does It Feel Like?

Symptoms often start subtly and worsen over time:

• Burning or tingling in the sole or toes
• Sharp, shooting pain along the inner ankle
• Numbness or weakness in the foot
• Pain that intensifies with standing, walking, or at night

If you’ve noticed these signs, early diagnosis is key to preventing permanent nerve damage.

How We Diagnose TTS?

Our specialists can use a combination of:

• Physical exam – Checking for tenderness, swelling, and nerve sensitivity (including Tinel’s sign).
• Imaging – X-rays, MRI, or ultrasound to detect structural issues.
• Nerve studies – EMG and conduction tests to confirm nerve compression.

Treatment Options

Conservative Care:

• Rest, ice, and anti-inflammatory medications
• Custom orthotics to correct foot mechanics
• Physical therapy to improve flexibility and reduce nerve pressure
• Corticosteroid injections for inflammation

Surgical Care:

If symptoms persist, tarsal tunnel release surgery may be recommended. This procedure involves carefully releasing the ligament that forms the tunnel roof, relieving pressure on the nerve.

Why Choose Benton Franklin Orthopedic Associates?

Expert Foot & Ankle Surgeons – Fellowship-trained specialists in nerve and tendon conditions.

Comprehensive Care – From diagnosis to rehabilitation, all under one roof.

Hospital Coverage – Many of our providers are on call at local hospitals for urgent cases.

Advanced Facilities – High Desert Surgery Center for safe, efficient procedures.

Take the First Step Toward Relief

Persistent foot pain or tingling? Don’t wait—early treatment leads to better outcomes.

📞 Call us today at (509) 586-2828 or visit our Kennewick office to schedule your consultation.