What Is an Aircast™ Ankle Brace?

Aircast ankle braces have become a standard treatment option for individuals undergoing sprained ankle rehabilitation.
A man with a sprained ankle, which is often treated with an Aircast™ ankle brace.
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  • Written By: Donn Saylor
  • Edited By: John Allen
  • Last Modified Date: 01 September 2014
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An Aircast™ Ankle Brace is a specially designed cast for a sprained ankle that utilizes air pressure instead of traditional plaster to facilitate support and healing. Designed and manufactured by the DonJoy Company, also known as DJO Incorporated, this type of ankle treatment uses a patented system of air support that produces gradual levels of compression during movement. Aircast™ Ankle Braces have become a standard treatment modality for those undergoing sprained ankle rehabilitation or for those requiring extra support with mobility. There are several different types of braces that fall under the category of "Aircast™ Ankle Brace."

One of the most popular Aircast™ Ankle Brace products is the Air-Stirrup® Ankle Brace. It employs the manufacturer's exclusive Duplex™ Aircell System. With this unique technology, two small pillows of air — called aircells — are pre-inflated and overlap one another, offering a high level of support to both the internal and external sides of the ankle. The aircells provide an increasing amount of compression as the user exerts more pressure on the afflicted limb. While speeding up the healing process, the Air-Stirrup® also helps to lessen the risk of edema — swelling due to a buildup of fluid — in the ankle and foot.


The AirSport™ Ankle Brace is another type of Aircast™ Ankle Brace designed for the patient who is an exercise enthusiast or constantly on the go. With a firmer shell than the Air-Stirrup® model, it provides added levels of compression and alleviation. It also boasts a specially made cross strap and shin and forefoot bindings, as well as an automatic adjustment feature that fits to the size of the heel, all of which further facilitate the stable support of the entire foot.

For the serious athlete, the A60™ Ankle Support integrates a solid stabilization tool on both sides of the Aircast™ Ankle Brace. The unique angle of the stabilizers adds another layer of protection against ankle problems and associated ankle pain. The A60™ Ankle Support is easy to slip into, contains just one strap, and is made of a durable, breathable fabric.

Other styles of Aircast™ Ankle Braces are also available. These include the Dorsal Night Splint for those dealing with Plantar Fasciitis, or swelling of the tissue on the bottom of the foot. The Air-Stirrup® Universe is made for general treatment of sprained ankles. For a lightweight alternative, there is the Air-Stirrup® Light, which is less bulky and made from a combination of aircell technology and foam.

Aircast™ Ankle Braces are sold in a variety of sizes. The Air-Stirrup® Ankle Brace is sold in small, medium, large, and pediatric sizes, while the AirSport™ Ankle Brace is available in these same dimensions, plus extra large and extra small. The A60™ Ankle Support comes in small, medium, and large, with left foot and right foot models.


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