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Baxter’s nerve entrapment

Baxter’s nerve ultrasound guided injection

What is Baxter’s nerve entrapment?

Baxter’s nerve entrapment is a cause of heel pain that is less common compared to plantar fasciitis. It accounts for approximately 20% of the cases of chronic heel pain. Baxter’s nerve is a small nerve that arises from a larger nerve (called the lateral plantar nerve) at the inner aspect of the ankle. It supplies the small muscles of the foot and sensation to the heel. The exact cause of nerve entrapment is not clear. It can happen as the nerve passes between the foot's small muscles or due to pressure from an adjacent bony heel spur or plantar fasciitis.

What are the clinical symptoms of Baxter’s nerve entrapment?

This condition usually presents very similar to plantar fasciitis with pain at the inside of the heel. However, there are a few differentiating features. The pain is more burning in nature and at the inside of the heel. Sometimes, you feel pain in the arch of the foot.

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How to diagnose Baxter's nerve entrapment?

Ultrasound and MRI are useful tests to assess the heel when there is suspicion of Baxter’s nerve entrapment or Plantar fasciitis. It can identify the nerve thickening but most of the time the nerve will demonstrate normal appearance. However, imaging is very valuable in ruling out plantar fasciitis which will show a normal appearance on imaging in patients with Baxter’s nerve entrapment.

Ultrasound guided tarsal sinus syndrome steroid injection

Initial treatment consists of exercises to strengthen the foot musculature, taping and orthotics. Ultrasound guided steroid injections can be useful in managing Baxter’s nerve entrapment. Ultrasound guidance will make sure to target the exact area around the nerve. Sometimes, an injection of local anaesthetic only (numbing medication) can be performed under ultrasound guidance. This will be a test to see if this would help alleviate the symptoms to confirm the diagnosis of Baxter’s nerve entrapment.

Specialist Consultant Musculoskeletal Radiologist Doctor with extensive experience in image-guided intervention

To book a consultation:

Call us on 020 3442 1259 or Book online

The Musculoskeletal Ultrasound & Injections clinic
Unit 3, Brentside Executive Park

Brentford, TW8 9DR

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