Ankle Impingement Syndrome: Anterior and Posterior Types Explained

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

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Ankle impingement syndrome is a painful condition where soft tissue or bony structures become pinched (impinged) within the ankle joint during specific movements. It is a common source of both anterior (front) and posterior (back) ankle pain in athletes and active individuals — and it is frequently undertreated because it mimics more common ankle conditions.

What Is Ankle Impingement?

Ankle impingement occurs when tissue gets trapped between joint surfaces during extreme ankle movement, producing sharp, localized pain at the limit of range of motion. Two distinct types exist based on location:

• Anterior ankle impingement causes pain at the front of the ankle, typically at the end of dorsiflexion (squatting, going up stairs, running uphill). Bony spurs on the anterior tibia or talus are a common cause.
• Posterior ankle impingement causes pain at the back of the ankle, typically during forced plantarflexion (pointing the foot, pushing off, ballet on pointe). The os trigonum — an accessory bone behind the talus — is a frequent culprit.

Anterior Ankle Impingement

Also called “footballer’s ankle” or “athlete’s ankle,” anterior impingement develops from repetitive forced dorsiflexion that traumatizes the anterior capsule and ligaments, eventually producing scar tissue, synovitis, and anterior tibiotalar bone spurs. Soccer players, runners, and gymnasts are most commonly affected.

Symptoms include pain at the front of the ankle with squatting or maximal dorsiflexion, anterior ankle swelling, reduced range of motion, and a tender soft tissue mass that can sometimes be palpated in the anterior joint line. Weight-bearing X-rays demonstrate anterior tibial and talar osteophytes (bone spurs) in bony impingement cases.

Posterior Ankle Impingement

Posterior impingement produces pain behind the ankle with forced plantarflexion. The os trigonum — an accessory ossicle present in approximately 7–14% of people — can become compressed between the posterior tibia and calcaneus with each push-off or when the ankle is forced into full plantarflexion. Ballet dancers, soccer players, and downhill runners are classic patients.

The “posterior ankle impingement test” — passively and forcefully plantarflexing the ankle — reproduces the posterior pain characteristic of this condition. MRI confirms os trigonum inflammation, posterior capsule synovitis, or flexor hallucis longus tendon involvement.

Treatment for Ankle Impingement

Conservative management is appropriate initially for both types:

• Activity modification: Reducing the provocative movements (forced dorsiflexion or plantarflexion) allows acute inflammation to subside.
• Physical therapy: Addressing muscle imbalances, restoring normal range of motion in unaffected planes, and strengthening perimalleolar musculature reduces impingement forces.
• Cortisone injection: A targeted injection into the anterior or posterior joint space provides powerful anti-inflammatory relief and can be both diagnostic and therapeutic.
• Footwear modification: Shoes with a slightly raised heel reduce the degree of dorsiflexion required during walking, relieving anterior impingement.

When conservative treatment fails — typically after 3–6 months — arthroscopic surgery is highly effective. Arthroscopic debridement of scar tissue, synovitis, and bone spurs produces excellent outcomes for anterior impingement. Os trigonum excision via arthroscopy or open approach resolves posterior impingement with high success rates and rapid return to sport (typically 8–12 weeks).

Ankle Impingement Syndrome Treatment in Michigan

Experiencing chronic ankle pain, stiffness, or clicking? Our podiatrists diagnose and treat anterior and posterior ankle impingement with both conservative and surgical approaches.

See Our Ankle Treatment Options → | Book Your Appointment | Call (810) 206-1402

Clinical References

1. Tol JL, et al. Anterior ankle impingement. Foot and Ankle International, 2004;25(6):382-386.
2. Robinson P, White LM. Soft-tissue and osseous impingement syndromes of the ankle. Clinical Sports Medicine, 2006;25(4):659-679.
3. Zwiers R, et al. Ankle impingement: a review of current knowledge. JISAKOS, 2020;5(2):81-90.

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When to See a Podiatrist

If foot or ankle pain has been bothering you for more than a few weeks, home care alone may not be enough. Balance Foot & Ankle offers same-week appointments at our Howell and Bloomfield Hills clinics — no referral needed in most cases. Bring your current shoes and a short list of symptoms and we’ll build you a treatment plan in one visit.

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Dr. Tom Biernacki, DPM

Dr. Tom Biernacki, DPM is a double board-certified podiatrist and foot & ankle surgeon at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has reached over one million views.