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Ankle Bone or Joint Injury

How to test for Posterior Ankle Impingement

Minute Read


Posted 1 year ago


Last updated: 03/12/2022


by James McCormack

Posterior Ankle Impingement Clinical Test

A posterior Ankle Impingement Test is the most accurate clinical test to diagnose a Posterior Ankle Impingement. To perform this test, the patient lies on their front and bends the knee of the affected side to 90º. The therapists move the foot into plantarflexion. Provocation of pain with overpressure with this movement indicates a positive test.

If the pain is on the inner side of the ankle, the therapist may ask the patient to flex their big toe against resistance. If pain is elicited on this movement, then there is a heightened clinical suspicion that the Flexor Hallicus Longus may contribute to the cause of their Posterior Ankle Impingement.

Related Article: Posterior Ankle Impingement Symptoms and Treatment

Posterior Ankle Impingement: X-Ray

If there is a clinical suspicion of Posterior Ankle Impingement, then your physician may recommend an x-ray. This is a quick and cost-effective method of detecting potential causes such as an Os-Trigonum or a Stieda’s Process. Unfortunately, an x-ray will not be able to determine if other factors are causing the pain, such as inflamed Flexor Hallucis Longus Tendon.

Posterior Ankle Impingement MRI

An MRI is one of the most accurate forms of diagnostic tools for Posterior Ankle Impingement. Posterior Ankle Impingement can result from bony growths, synovitis, effusion, bone bruising or soft tissue injury. An MRI will enable a clinician to differentiate between these potential causes. Combined with a clinical assessment, it is an excellent tool for Posterior Ankle Impingement diagnosis.

Posterior Ankle Impingement: Ultrasound

An Ultrasound scan helps detect soft tissue inflammation or swelling within the joint that may be causing the symptoms of Posterior Ankle Impingement. It is not as accurate as an MRI, but this is a valuable tool as it gives instant feedback on the potential cause of the pain, and it is most cost-effective than an MRI.

Physiotherapy with James McCormack

This is not medical advice. We recommend a consultation with a medical professional such as James McCormack. He offers Online Physiotherapy Appointments for £45.

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