How Ankylosing Spondylitis Affects the Feet and Ankles

Today, we at Amarillo Foot Specialists will discuss Ankylosing Spondylitis (AS). Although primarily a back problem, its name hints at its strong correlation with the ankles and feet. But what is this seemingly complex condition?

Understanding how AS affects these areas can help individuals manage their symptoms, so let’s explore this chronic, inflammatory, autoimmune disease in detail.

Arthritis and Enthesitis

AS can cause arthritis in the joints of the feet and ankles. This inflammation can lead to pain, swelling, and stiffness, making it difficult to walk or stand for extended periods.

A similar problem AS causes is enthesitis. Not to be mistaken with arthritis, this condition involves inflammation at the sites where tendons and ligaments attach to bones. In AS, enthesitis often affects the Achilles tendon and leads to Achilles tendonitis.

Bone Formation and Deformities

According to an NIH study, over 70% of those with Ankylosing Spondylitis incur a foot deformity. In advanced cases of AS, abnormal bone growth, such as Haglund’s deformity, can occur at the back of the heel. This can lead to further deformities and impaired function.

Another distinctive feature of AS in the feet is dactylitis, which causes sausage-like swelling of the toes. This condition can be painful and limit mobility.

Impact on Gait and Posture

AS can affect your overall posture and gait, which can, in turn, impact the health and function of your feet and ankles. Changes in posture can also lead to uneven weight distribution and additional strain on the joints.

Managing Foot and Ankle Symptoms in AS

If you have AS and are experiencing foot or ankle pain, it's important to consult with a podiatrist for proper diagnosis and treatment. Treatment strategies may include:

  • Medications: Nonsteroidal anti-inflammatory drugs (NSAIDs) and disease-modifying antirheumatic drugs (DMARDs) can help manage inflammation and pain.

  • Physical therapy: Exercises and stretches can help improve flexibility, strength, and range of motion in the feet and ankles.

  • Orthotics: Custom orthotics may provide support and alleviate pain in the feet.

  • Joint replacement surgery: In severe cases, surgery may be necessary to address joint damage.

Are you fed up with foot and ankle pain? Contact Dr. Brandon Holloway of Amarillo Foot Specialists in Amarillo, TX, for a consultation. Please reach out to us at (806) 322-3338.

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