Tarsal Tunnel Syndrome is often described as the foot’s equivalent of Carpal Tunnel Syndrome in the wrist. It occurs when the posterior tibial nerve becomes compressed within a narrow anatomical passage called the tarsal tunnel, located behind and below the inner ankle bone (medial malleolus).

The tarsal tunnel is bounded by:

• Medial malleolus
• Talus
• Calcaneus (heel bone)
• Flexor retinaculum (a strong ligament covering the tunnel)

Structures passing through the tarsal tunnel include:

• Posterior tibial nerve
• Posterior tibial artery and veins
• Tibialis posterior tendon
• Flexor digitorum longus tendon
• Flexor hallucis longus tendon

Any condition that narrows the tunnel or increases pressure on the nerve can produce symptoms of Tarsal Tunnel Syndrome.

The condition may develop gradually due to repetitive stress or suddenly following trauma. If left untreated, prolonged nerve compression may result in chronic pain, sensory loss, or muscle weakness.

At Magnum Physiotherapy, our treatment programs focus on reducing nerve irritation, correcting biomechanical abnormalities, and restoring pain-free movement.

Anatomy Involved

Posterior Tibial Nerve

The posterior tibial nerve arises from the sciatic nerve and contains fibers from the L4–S3 nerve roots.

Within the tarsal tunnel, it branches into:

• Medial plantar nerve
• Lateral plantar nerve
• Medial calcaneal branch

Compression of different branches may produce different symptom patterns.

Common Symptoms

• Burning pain in the sole of the foot
• Tingling or pins-and-needles sensation
• Numbness in the foot or toes
• Sharp or shooting pain
• Pain radiating into the arch or heel
• Symptoms worsening with prolonged standing or walking
• Night pain or discomfort
• Weakness of foot muscles
• Cramping in the foot
• Reduced balance and stability

Symptoms often improve with rest and worsen with activity.

Causes & Risk Factors

Structural & Biomechanical Causes

• Flat feet (Pes Planus)
• Overpronation
• Foot deformities
• Varus or valgus alignment abnormalities

Trauma-Related Causes

• Ankle sprains
• Fractures
• Scar tissue formation
• Previous ankle surgery

Space-Occupying Lesions

• Ganglion cysts
• Lipomas
• Varicose veins
• Bone spurs

Medical Conditions

• Diabetes Mellitus
• Rheumatoid Arthritis
• Hypothyroidism
• Peripheral edema
• Inflammatory disorders

Risk Factors

• Athletes and runners
• Occupations requiring prolonged standing
• Obesity
• Poor footwear choices

Types of Tarsal Tunnel Syndrome

Proximal Tarsal Tunnel Syndrome

Compression occurs near the main posterior tibial nerve.

Distal Tarsal Tunnel Syndrome

Compression affects one of the terminal branches of the nerve.

Conditions Associated with Tarsal Tunnel Syndrome

• Posterior Tibial Tendon Dysfunction (PTTD)
• Plantar Fasciitis
• Flat Feet (Pes Planus)
• Ankle Instability
• Peripheral Neuropathy
• Diabetes Mellitus
• Varicose Veins

Diagnosis

At Magnum Physiotherapy, we conduct a detailed assessment to identify the cause of nerve compression and contributing biomechanical factors.

Evaluation may include:

• Detailed medical history
• Neurological examination
• Sensory testing
• Muscle strength assessment
• Foot posture evaluation
• Gait analysis
• Balance testing
• Functional movement assessment

Special Clinical Tests

• Tinel’s Sign over the tarsal tunnel
• Dorsiflexion-Eversion Test
• Triple Compression Stress Test

Diagnostic Investigations

• Nerve Conduction Studies (NCS)
• Electromyography (EMG)
• Ultrasound imaging
• MRI scans

These investigations help confirm nerve compression and identify underlying causes.

Differential Diagnosis

Conditions that may mimic Tarsal Tunnel Syndrome include:

• Plantar Fasciitis
• Lumbar Radiculopathy
• Peripheral Neuropathy
• Morton’s Neuroma
• S1 Radiculopathy
• Stress Fractures

Accurate diagnosis is important because treatment differs significantly.

Treatment at Magnum Physiotherapy

Treatment aims to reduce nerve compression, relieve symptoms, and restore foot function.

Conservative Management

• Activity modification
• Footwear modification
• Weight management guidance
• Orthotic support

Advanced Physiotherapy Treatments

• Percutaneous Neuromodulation (PNE)
• Class IV Laser Therapy
• Frequency Specific Microcurrent (FSM)
• Therapeutic Ultrasound
• TENS Therapy
• Interferential Therapy (IFT)
• Kinesio Taping®

Rehabilitation Programs

Nerve Mobilization

• Tibial nerve gliding exercises
• Neural mobilization techniques

Strengthening Exercises

• Foot intrinsic muscle strengthening
• Arch stabilization exercises
• Calf strengthening
• Hip strengthening

Mobility & Flexibility

• Calf stretching exercises
• Ankle mobility exercises
• Plantar fascia stretching

Functional Rehabilitation

• Balance and proprioception training
• Gait retraining
• Functional movement training
• Return-to-sport programs

Home Exercise Programs

Individualized exercise plans to support recovery and prevent recurrence.

Orthotic & Supportive Management

Supportive devices may include:

• Custom orthotics
• Medial arch supports
• Heel cups
• Ankle braces
• Motion-control footwear

These measures help reduce stress on the tibial nerve and improve foot mechanics.

Benefits of Physiotherapy for Tarsal Tunnel Syndrome

• Reduces pain and nerve irritation
• Improves nerve mobility
• Decreases numbness and tingling
• Strengthens supporting muscles
• Improves walking ability
• Enhances balance and stability
• Corrects abnormal biomechanics
• Prevents progression of nerve damage
• Supports return to activities
• Improves quality of life

When Is Surgery Needed?

Surgical decompression may be considered when:

• Conservative treatment fails
• Significant nerve compression persists
• Space-occupying lesions are present
• Progressive neurological deficits develop

Post-surgical physiotherapy is essential for restoring mobility and function.

Recovery & Prognosis

Recovery depends on:

• Duration of symptoms
• Severity of nerve compression
• Underlying cause
• Adherence to rehabilitation

Early diagnosis and treatment provide the best outcomes and reduce the risk of permanent nerve damage.

Prevention Tips

• Wear supportive footwear
• Maintain a healthy body weight
• Address foot pain early
• Strengthen foot and ankle muscles
• Avoid prolonged standing when possible
• Use orthotics when indicated
• Treat ankle injuries promptly

Why Choose Magnum Physiotherapy?

At Magnum Physiotherapy, we specialize in advanced foot and ankle rehabilitation using evidence-based physiotherapy and modern technologies. Our personalized treatment programs combine PNE, Laser Therapy, FSM, nerve mobilization, and corrective exercises to relieve symptoms, restore function, and help patients return to pain-free movement.