Tarsal Tunnel Syndrome: Diagnosis & Treatment | Michigan Podiatrist

Quick answer: Tarsal Tunnel Syndrome Michigan 5 is a clinical condition that responds to evidence-based treatment when caught early. Symptoms include pain, swelling, and altered function. Diagnosis requires clinical exam, often imaging. Treatment ladder: conservative care first (4-6 weeks), then targeted interventions if needed. Call (810) 206-1402.

Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.

Tarsal tunnel syndrome is compression of the posterior tibial nerve as it passes through the tarsal tunnel — a fibro-osseous canal on the inner ankle bordered by the medial malleolus above and the flexor retinaculum below. It causes burning, tingling, or electric-shock sensations along the inner ankle, the arch, and often the heel and toes. Dr. Tom Biernacki, DPM at Balance Foot & Ankle in Howell and Bloomfield Hills, Michigan diagnoses and treats tarsal tunnel syndrome with conservative care and, when necessary, surgical decompression.

What Is Tarsal Tunnel Syndrome?

Tarsal tunnel syndrome (TTS) is the foot and ankle equivalent of carpal tunnel syndrome in the wrist. The posterior tibial nerve carries sensory and motor signals to the inner foot and plantar surface. When compressed within the tarsal tunnel, it produces the classic triad: burning or tingling in the inner ankle, pain or paresthesia in the arch and sole, and a positive Tinel’s sign (electric shock sensation when tapping over the tunnel). Unlike plantar fasciitis, TTS pain is often worse at night, worsened by standing or walking, and accompanied by numbness rather than just aching.

Causes and Risk Factors

Tarsal tunnel syndrome can result from space-occupying lesions within the tunnel (varicose veins, ganglion cysts, lipomas, accessory muscles), trauma causing fibrosis and scarring, flatfoot deformity causing tension on the nerve through valgus heel position, systemic conditions including hypothyroidism, diabetes, and rheumatoid arthritis that promote nerve swelling, and prolonged standing or walking that increases canal pressure. In many cases no single cause is identified, and treatment focuses on reducing nerve compression regardless of etiology.

How Tarsal Tunnel Is Diagnosed

Diagnosis begins with a clinical history and physical examination. Key findings include a positive Tinel’s sign at the medial ankle (tapping reproduces symptoms along the nerve distribution), sensory deficits in the tibial nerve distribution on monofilament or two-point discrimination testing, and pain reproduction with dorsiflexion-eversion stress testing. Nerve conduction velocity (NCV) and electromyography (EMG) testing confirms the diagnosis and quantifies severity. MRI or ultrasound helps identify space-occupying lesions within the canal that require surgical intervention regardless of conservative care response.

Conservative Treatment Options

First-line treatment includes custom orthotics to control pronation and reduce nerve tension through the canal — particularly important in patients with flatfoot or overpronation. Corticosteroid injection into the tarsal tunnel reduces perineural inflammation and provides diagnostic confirmation when symptoms resolve temporarily. NSAIDs and neuropathic pain medications (gabapentin, pregabalin) address the nerve pain component. Physical therapy focusing on tibial nerve mobilization exercises and gastrocnemius flexibility can reduce nerve adhesion and tension. Shoe modifications — particularly supportive footwear with a firm heel counter — reduce canal pressure during gait.

Tarsal Tunnel Release Surgery

Surgical decompression (tarsal tunnel release) is indicated when conservative care for 3–6 months has failed, when NCV/EMG confirms significant nerve compression, or when a structural lesion is identified that will not respond to non-operative care. The procedure involves releasing the flexor retinaculum under the medial ankle to decompress the posterior tibial nerve and its branches. Recovery involves non-weightbearing for 2–4 weeks in a surgical boot, followed by progressive return to activity over 6–12 weeks. Success rates are highest when a single compressive cause is identified and corrected; idiopathic TTS has more variable outcomes.

Most Common Diagnostic Mistake

The most common mistake in tarsal tunnel syndrome is misdiagnosis as plantar fasciitis. Both conditions cause inner heel and arch pain, but TTS features tingling, burning, and numbness; worsening at rest or at night; and a positive Tinel’s sign at the medial ankle. Plantar fasciitis features sharp first-step pain that eases with activity, no neurological symptoms, and a negative Tinel’s sign. Treating TTS with plantar fasciitis protocols (stretching, ice, orthotics alone) will not resolve nerve compression and delays appropriate treatment.

Differential Diagnosis

Conditions to differentiate from tarsal tunnel syndrome include plantar fasciitis (no Tinel’s, no burning, morning dominant), peripheral neuropathy from diabetes or B12 deficiency (bilateral, stocking distribution, not limited to tibial distribution), radiculopathy from L4-5 or S1 nerve root (back pain, positive SLR, dermatome distribution above ankle), and baxter’s nerve entrapment (compression of the inferior calcaneal nerve, lateral heel rather than medial, no Tinel’s at tarsal tunnel).

When to See a Podiatrist

See a podiatrist if you have burning or tingling in the inner ankle or arch that has persisted more than 4–6 weeks, if symptoms are waking you from sleep, if you have noticed areas of numbness in the foot, or if you have been treated for plantar fasciitis without improvement. Early evaluation and NCV/EMG testing before significant nerve damage occurs improves long-term outcomes. Dr. Biernacki provides complete tarsal tunnel evaluation including nerve conduction studies coordination, corticosteroid injection, custom orthotics, and surgical consultation when warranted. Schedule online or call (810) 206-1402 — same-day appointments in Howell and Bloomfield Hills, MI.

Differential Diagnosis: What Else Could It Be?

Not every case of tarsal tunnel syndrome is straightforward. In our clinic we routinely rule out three look-alike conditions before confirming the diagnosis. If your symptoms don’t match the classic presentation, one of these may explain the pain — which is why physical exam matters more than self-diagnosis.

Condition	How It Differs
Plantar fasciitis	Sharp morning heel pain at the medial calcaneal tubercle, NOT numbness or shooting pain into the toes.
Diabetic peripheral neuropathy	Bilateral stocking-glove distribution, progressive, affects toes first — NOT reproduced by Tinel’s at medial ankle.
S1 radiculopathy	Pain originates in low back, follows S1 dermatome, positive straight-leg raise.

Red Flags — When to See a Podiatrist Now

In Our Clinic: What We See

What is Foot pain?

Foot pain is a common foot/ankle condition that affects mobility and quality of life. Understanding the underlying cause is the first step in successful treatment. Our podiatrists at Balance Foot & Ankle perform a hands-on biomechanical exam, review your activity history, and use diagnostic imaging when appropriate to identify the root cause—not just treat the symptom. Many patients have been told to “rest and ice” without a deeper diagnostic workup; our approach is different.

Symptoms and warning signs

Common signs of foot pain include pain that worsens with activity, morning stiffness, swelling, tenderness when palpated, and difficulty bearing weight. If you experience sudden severe pain, inability to walk, visible deformity, numbness or color change, contact our office the same day or visit urgent care—these can signal a more serious injury such as a fracture, tendon rupture, or vascular compromise. Diabetics with any foot wound should seek same-day care.

Conservative treatment options

Most cases of foot pain respond to non-surgical care: structured rest, supportive footwear changes, custom orthotics, targeted stretching and strengthening protocols, anti-inflammatory medications when medically appropriate, and in-office procedures such as ultrasound-guided injections. We also offer advanced therapies including MLS laser therapy, EPAT/shockwave, regenerative injections, and image-guided procedures. Treatment is sequenced from least invasive to most invasive, and we explain the rationale at every step.

When is surgery considered?

Surgery is reserved for cases that fail 3-6 months of well-structured conservative care, when there is structural pathology (severe deformity, complete tear, advanced arthritis), or when imaging shows damage that will not heal without intervention. Our surgeons have performed 3,000+ foot and ankle procedures and prioritize minimally-invasive techniques whenever appropriate. We discuss recovery timelines, return-to-activity milestones, and realistic outcome expectations before any procedure is scheduled.

Recovery timeline and prevention

Recovery from foot pain varies based on severity and chosen treatment path. Conservative cases often improve within 4-8 weeks with consistent adherence to the protocol. Post-procedural recovery may range from a few days (in-office procedures) to several months (reconstructive surgery). Long-term prevention involves footwear assessment, activity modification, structured strengthening, and regular check-ins with your podiatrist if you have a history of recurrence. We provide written home-exercise plans and digital follow-up support.

Visit Balance Foot & Ankle — Same-Day Appointments Available

Our podiatry team serves patients throughout Michigan including Howell, Brighton, and Bloomfield Hills. If you’re dealing with heel pain, ingrown toenails, or a foot injury, we have same-day appointment availability.