Ankle Instability is where the outer side of the ankle tends to give out when putting weight on it.
What causes this is old injuries, especially repeated injuries such as sprained ankles.
Treatment for this condition depends on many factors and can include conservative measures, as well as surgical options. Physical therapy, bracing, proper supportive shoe gear, and periods of protected weight-bearing followed by strengthening are all viable options. For severe cases, surgery to strengthen or re-create the ligaments around the ankle may be considered.