Chronic Ankle Instability

Chronic ankle instability is a condition in which the outer portion of the ankle has a chronic sensation of weakness and constantly "gives way" during walking and other activities. While this condition commonly occurs during physical activity, it may even occur while an individual is standing still. Chronic ankle instability commonly affects athletes and is often caused by an ankle sprain that has not healed properly or by repeated ankle sprains. A sprained ankle tears or stretches connective tissues, affecting balance, and if not treated properly, chronic ankle instability and other ankle problems may occur.

Symptoms of Chronic Ankle Instability

The most common symptom of chronic ankle instability is a wobbly, unstable feeling within the ankle. Additional symptoms that may affect the ankle may include:

  • Pain
  • Tenderness
  • Swelling and discomfort

Some individuals with chronic ankle instability may experience a repeated turning of the ankle when walking or running on uneven surfaces.

Diagnosing Chronic Ankle Instability

Chronic ankle instability may be diagnosed through a physical examination, and a medical history review. Patients may be asked about past ankle injuries and recovery. Imaging tests, such as x-rays are often performed to detect any damage to the ankle bone and provide an accurate diagnosis.

Treatment for Chronic Ankle Instability

Most cases of chronic ankle instability are treated through conservative measures that may include:

  • Physical therapy
  • Anti-inflammatory medication
  • Ankle bracing

Severe cases of chronic ankle instability that do not respond to conservative treatment methods may require surgical correction. Surgery for chronic ankle instability involves repairing or reconstructing the damaged ligaments that cause symptoms. Recovery from surgery varies depending on the specific procedure that is performed.

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