Tarsal Tunnel Syndrome Ankle Pain 2026 | DPM

Nerve Branch	Distribution	Symptoms if Compressed	Test	Notes
Posterior Tibial Nerve (main trunk)	Divides into medial + lateral plantar + calcaneal branches	Global plantar burning; heel; all toes	Tinel at tarsal tunnel; EMG/NCS	Most common compression site; flexor retinaculum
Medial Plantar Nerve	Great toe, 2nd, 3rd, medial 4th toe plantar	Burning into medial 3 toes; jogger foot variant	Tinel at navicular tuberosity	Compressed at abductor hallucis or navicular
Lateral Plantar Nerve	Lateral 4th, 5th toe plantar; heel	Lateral forefoot burning; Baxter nerve branch	Tinel at abductor hallucis inferior	Baxter branch: most common nerve cause of chronic heel pain
Calcaneal Branch	Medial and plantar heel skin	Burning heel; numb heel pad	Tinel at medial heel	Often misdiagnosed as plantar fasciitis

Treatment	Indication	Success Rate	Notes
Custom Orthotics (UCBL/posting)	Pronation-driven tarsal tunnel; first-line	40-60% symptom improvement	Reduces valgus heel that stretches posterior tibial nerve
Corticosteroid Injection	Acute tarsal tunnel; tenosynovitis component	50-70% short-term (4-12 weeks)	Also diagnostic — improvement confirms nerve origin
Physical Therapy (nerve mobilization)	Mild-moderate; neural tension component	50-60% with nerve gliding exercises	Neural glides + intrinsic strengthening
Surgical Decompression	Failed conservative care x3-6 months; space-occupying lesion	75-85% if cause identified; 50-60% idiopathic	Release flexor retinaculum + all 3 nerve branches + explore for ganglion/lipoma

Quick answer: Treatment for tarsal tunnel syndrome ankle nerve entrapment treatment follows a stepwise approach: 1) conservative care first (rest, ice, supportive footwear, OTC anti-inflammatories), 2) physical therapy and targeted exercises, 3) in-office treatments (injections, custom orthotics) if conservative fails at 4-6 weeks, 4) surgery for refractory cases. Most patients resolve at step 1 or 2. Call (810) 206-1402.

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What Is Tarsal Tunnel Syndrome?

Tarsal tunnel syndrome (TTS) is a nerve compression condition caused by pressure on the tibial nerve as it travels through the tarsal tunnel — a narrow fibro-osseous canal located on the inner side of the ankle. Similar to carpal tunnel syndrome in the wrist, TTS produces burning, tingling, and numbness radiating into the sole of the foot and toes. At Balance Foot & Ankle, Dr. Biernacki diagnoses and treats this frequently misunderstood condition.

What Causes Tarsal Tunnel Syndrome?

TTS can result from anything that reduces space or increases pressure within the tarsal tunnel. Common causes include flat feet (overpronation) which stretches the tibial nerve with each step, ganglion cysts or other space-occupying lesions within the tunnel, post-traumatic scarring from ankle sprains or fractures, varicose veins near the tunnel, inflammatory conditions like rheumatoid arthritis, and systemic conditions such as diabetes or hypothyroidism that increase nerve vulnerability. In some cases no clear cause is identified (idiopathic TTS).

Recognizing the Symptoms

The hallmark symptoms of tarsal tunnel syndrome are burning pain, tingling, and numbness in the sole of the foot, heel, and/or toes — most often worse with prolonged standing, walking, or at the end of the day. Some patients describe electric shock sensations shooting into the foot. Symptoms may be worse at night. A positive Tinel’s sign — tapping over the tarsal tunnel reproduces the symptoms — is a classic clinical finding. Unlike plantar fasciitis, the pain is often described as a burning nerve sensation rather than a sharp stabbing pain.

How We Diagnose TTS

Diagnosis begins with a thorough history and neurological examination of the foot and ankle. Electrodiagnostic studies — nerve conduction velocity (NCV) testing and electromyography (EMG) — can confirm tibial nerve slowing across the tarsal tunnel and help rule out other nerve conditions including peripheral neuropathy and lumbar radiculopathy. MRI of the ankle identifies space-occupying lesions. Ultrasound can visualize the nerve in real time and identify compression points. Many patients with TTS have been seen multiple times for “plantar fasciitis” before the correct diagnosis is made.

Conservative Treatment

Conservative management is the first-line approach for TTS. Custom orthotics that control overpronation take mechanical tension off the tibial nerve and provide significant relief in many patients. NSAIDs reduce perineural inflammation. Corticosteroid injection into the tarsal tunnel is both diagnostic and therapeutic — a positive response strongly confirms the diagnosis. Physical therapy including nerve mobilization techniques and stretching of the posterior leg muscles can help in selected patients. Bracing or taping the ankle in a more neutral position reduces nerve tension during activity.

Surgical Tarsal Tunnel Release

When conservative treatment fails after 3–6 months, surgical tarsal tunnel release is highly effective. The procedure involves dividing the flexor retinaculum (the ligamentous roof of the tarsal tunnel) to decompress the tibial nerve. Any space-occupying lesions (cysts, varicosities) are removed simultaneously. Surgery is performed under general or regional anesthesia on an outpatient basis. Recovery involves 2 weeks of non-weight-bearing, followed by progressive return to activity over 6–8 weeks. Results are excellent in well-selected patients — especially those with a clear identifiable cause and positive electrodiagnostic findings.

Getting the Right Diagnosis in Michigan

Tarsal tunnel syndrome is often misdiagnosed as plantar fasciitis, peripheral neuropathy, or low back radiculopathy. If you have burning, tingling, or numbness in the bottom of your foot that hasn’t responded to standard heel pain treatment, TTS may be the cause. Dr. Biernacki at Balance Foot & Ankle provides the hands-on exam plus imaging when needed needed to reach the correct diagnosis and the right treatment plan. Call our Howell, MI office today.

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In-Office Treatment at Balance Foot & Ankle

If home treatment isn’t providing relief for your tarsal tunnel syndrome ankle nerve entrapment treatment, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.