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

Ankle impingement occurs when soft tissue or bony structures are mechanically compressed within the ankle joint during movement. Anterior impingement causes pain with dorsiflexion; posterior impingement causes pain with plantarflexion. Both conditions are underdiagnosed causes of persistent ankle pain — often attributed to “old sprains” — that respond well to targeted treatment once correctly identified.

Anterior Ankle Impingement

Anterior ankle impingement results from compression of the anterior ankle soft tissue or bony spurs between the distal tibia and the dorsal talus neck during dorsiflexion. The classic presentation is deep anterior ankle pain with forced dorsiflexion activities — squatting, ascending stairs, running uphill, or rising from sitting.

Soft Tissue Anterior Impingement

Following ankle sprains, the anterior talofibular ligament and anterolateral capsule can become hypertrophied, developing a “meniscoid” lesion of fibrous scar tissue. This tissue is impinged in the lateral gutter during dorsiflexion. The anterolateral impingement test (pain reproduced by palpation of the anterolateral gutter with passive dorsiflexion-eversion) has high sensitivity and specificity. MRI may show the thickened tissue; ultrasound can confirm dynamic impingement.

Treatment: conservative management with physical therapy, ankle mobilization, and ultrasound-guided corticosteroid injection into the anterolateral gutter succeeds in approximately 65% of cases. Arthroscopic debridement of the fibrotic tissue resolves pain in 85–90% of surgical cases.

Bony Anterior Impingement

Anterior bony impingement involves osteophytes (bone spurs) on the anterior tibial lip and/or the dorsal talar neck. These spurs develop from repetitive forced dorsiflexion — common in soccer players and dancers. The spurs contact each other during end-range dorsiflexion, producing pain and limiting motion. X-ray (lateral view in maximum dorsiflexion) demonstrates the osteophytes. CT scan characterizes spur size and extent.

Conservative treatment has limited efficacy for bony impingement. Arthroscopic or open osteophyte excision provides significant relief in 80–90% of cases, with restoration of dorsiflexion range and return to sport typically within 6–12 weeks.

Posterior Ankle Impingement

Posterior ankle impingement results from compression of posterior ankle structures — os trigonum, posterior talar process, posterior capsule, or hypertrophied posterior synovium — during forced plantarflexion. This is the classic ballet dancer injury (“dancer’s heel”) but also occurs in soccer players (kicking mechanism), gymnasts, and downhill runners.

Os Trigonum Syndrome

The os trigonum is an accessory ossicle posterior to the talus, present in approximately 10% of the population and typically asymptomatic. When compressed between the calcaneus and posterior tibia in maximum plantarflexion, it causes posterior ankle pain. Forced plantarflexion test (pain reproduced by passive plantarflexion with overpressure) is positive. Bone scan or SPECT-CT confirms symptomatic os trigonum impingement. MRI demonstrates bone marrow edema in and around the os trigonum.

Conservative treatment — activity modification, physical therapy, corticosteroid injection — succeeds in 50–60% of cases. Excision of the os trigonum (open or arthroscopic) resolves pain in 85–95% of surgical cases with return to dance or sport within 8–12 weeks.

Posterior Tibiotalar Coalition and Posterior Talar Process Fracture

Shepherd’s fracture — fracture of the posterior lateral talar process — can be mistaken for os trigonum on imaging. Fractures require standard fracture management; non-union of a symptomatic posterior process fracture is managed surgically. Posterior subtalar coalition produces posterior ankle and sinus tarsi pain with limited subtalar motion on examination.

At Balance Foot & Ankle, Dr. Biernacki evaluates anterior and posterior ankle impingement with weight-bearing X-rays and MRI at both Bloomfield Hills and Howell offices. Call (810) 206-1402 for a persistent ankle pain evaluation.

Ankle Impingement Diagnosis & Treatment in Michigan

Anterior and posterior ankle impingement cause chronic pain with activity. Our podiatric surgeons use advanced imaging and arthroscopic techniques to diagnose and treat bone spurs, scar tissue, and soft tissue impingement — restoring full ankle motion.

Learn About Ankle Treatments | Book Your Appointment | Call (810) 206-1402

Clinical References

1. Tol JL, et al. A systematic review of the treatment of anterior ankle impingement. Foot & Ankle International. 2006;27(11):952-959.
2. Smyth NA, et al. Posterior ankle impingement: a review. Foot and Ankle Specialist. 2019;12(2):165-172.
3. van Dijk CN, et al. Anterior ankle arthroscopy for impingement and synovitis: a systematic review. Knee Surgery, Sports Traumatology, Arthroscopy. 2016;24(4):1115-1124.

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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.