Ankle brace. Generally for ankles that are weak from previous injuries where the ligaments are weak so that while doing activities one can hopefully prevent worse damage.
An ankle. It will stabilize your ankle and prevent it moving in certain directions. Usually, prevents inversion, the direction the ankle would move in a sprain.
See your doctor. As a decision to operate or not needs to be made. Having said that bledsoe makes a nice achilles tendon brace. But, you should be followed by a doctor. Read more...