Tibialis Anterior Tendon Rupture: Diagnosis and Treatment

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

Tibialis anterior tendon rupture — complete or partial disruption of the primary dorsiflexor and invertor of the foot — is a rare but functionally significant injury that produces a characteristic ‘foot slap’ gait and inability to clear the forefoot during walking. Because it occurs most commonly in patients over 60 from chronic attritional degeneration rather than acute trauma, and because the presentation is gradual, tibialis anterior rupture is frequently diagnosed late — sometimes years after onset — when the patient presents for evaluation of ‘tripping’ or ‘dropping the foot.’

Anatomy, Mechanism, and Diagnosis

The tibialis anterior tendon courses from the anterior compartment of the leg beneath the superior and inferior extensor retinacula, inserting into the medial cuneiform and base of the first metatarsal — the primary dorsiflexor (80% of dorsiflexion strength) and a significant invertor of the foot. Attritional rupture: the most common mechanism — chronic tendinopathy at the zone of relative avascularity just proximal to the insertion (between the superior and inferior retinaculum) leads to progressive tearing; patients often report no specific injury event. Acute rupture: direct laceration or forced plantarflexion against resistance (stepping off a curb, stumbling). Clinical diagnosis: steppage gait (high-stepping to clear the foot, with forefoot slap on heel strike); the anterior ankle is visibly flattened at the tendon location; a palpable mass at the rupture site from the retracted proximal stump; active dorsiflexion weakness (the patient cannot raise the forefoot against gravity against resistance); the extensor digitorum longus and extensor hallucis longus tendons may compensate partially. MRI: confirms complete rupture, characterizes gap size and degree of proximal tendon retraction, and evaluates tendon quality for repair planning. The gap size and chronicity determine repair strategy.

Treatment

Conservative management (orthosis): ankle-foot orthosis (AFO) or posterior leaf spring orthosis restores foot clearance — appropriate for low-demand patients, elderly patients with high surgical risk, or chronic ruptures with poor tendon quality not amenable to repair. Surgical repair: primary end-to-end repair for acute ruptures with adequate tendon length and quality — excellent outcomes when performed within 6–8 weeks; reconstruction with allograft or ipsilateral extensor hallucis longus transfer for chronic ruptures with large gaps; 90% of patients achieve functional dorsiflexion after repair. Dr. Biernacki at Balance Foot & Ankle evaluates anterior ankle weakness with MRI and clinical examination and performs tibialis anterior tendon repair and reconstruction for complete ruptures. Call (810) 206-1402 at our Bloomfield Hills or Howell office.

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In-Office Treatment at Balance Foot & Ankle

If home care isn’t resolving your your foot or ankle concern, a visit with a board-certified podiatrist is the fastest path to accurate diagnosis and a personalized plan. At Balance Foot & Ankle Specialists, Dr. Tom Biernacki, Dr. Carl Jay, and Dr. Daria Gutkin offer same-day and next-day appointments at both our Howell and Bloomfield Hills offices. We perform on-site diagnostic ultrasound, digital X-ray, conservative care, advanced regenerative treatments, and minimally invasive surgery when indicated.

Call (810) 206-1402 or request an appointment online. Most insurance plans accepted, including Medicare, Blue Cross Blue Shield, Aetna, Cigna, and United Healthcare.

Frequently Asked Questions

When should I see a podiatrist?

See a podiatrist for any foot or ankle pain that persists more than 2 weeks, doesn’t improve with rest, limits your daily activities, or is accompanied by swelling, numbness, or skin changes. People with diabetes or circulation problems should see a podiatrist regularly even without symptoms.

What does a podiatrist treat?

Podiatrists diagnose and treat all conditions of the foot, ankle, and lower leg including plantar fasciitis, bunions, hammertoes, toenail problems, heel pain, nerve pain, diabetic foot care, sports injuries, fractures, and foot deformities — both surgically and non-surgically.

What can I expect at my first podiatry visit?

Your first visit includes a full medical history, physical examination of your feet and gait, and in-office diagnostic imaging if needed (X-rays, ultrasound). We’ll discuss your diagnosis and create a personalized treatment plan. Most visits take 30–45 minutes.

Need Treatment at Balance Foot & Ankle?

Dr. Tom Biernacki, Dr. Carl Jay, and Dr. Daria Gutkin see patients at our Howell and Bloomfield Township offices.

Book Online or call (810) 206-1402

Most Common Mistake We See

The most common mistake we see is: Waiting too long before seeking care. Fix: any foot pain lasting more than 4 weeks, or any sudden severe symptom, deserves a professional evaluation rather than more rest.

Warning Signs That Need Same-Day Care