The Weak Ankle Orthosis (SAO) is a specialized orthotic which can reduce the healing time of common ankle sprains while allowing you to remain on your feet. The SAO is used in sport,street shoes or boots to reduce strain on the lateral ligaments on the outside of the ankle by tilting the foot toward the inside, increasing the degree of ankle pronation.
The most common ankle sprain is an inversion sprain, which occurs when the ankle "turns in" and the foot rolls under, often while contacting the ground, i.e. the ankle supinates too much, and the Anterior TaloFibular (ATF) ligament and other peroneal ligaments on the outside of the foot become stretched or damaged. The damage causes bleeding within the tissues and the ankle begins to swell up and can be very painful, with the worst pain usually on the outside of the foot, just below the ankle bone (lateral malleolus).
Walking or running with an injured ATF ligament repeatedly stresses it, and this can make unassisted healing while remaining active a painful and lengthy process.
The patented Sprained Ankle Orthosis is a firm heel cup with a 15-degree wedge shape, which extends forward for support and tilts the ankle toward pronation, reducing the stress on the ATF and other ankle ligaments on the outside of the ankle. The ABS plastic cup is designed to stabilize the calcaneus and to support the ATF and other peroneal tendons of the ankle. It can easily be cleaned if necessary, and is non-allergenic.
The SAO can be used in street,sports shoes, or boots to prevent inversion of the ankle while walking or jogging. It will remain in place in the heel of the shoe and does not require fastening in place. It can be used with other orthotic footbeds if necessary,but needs to be placed on top of the device. The SAO can also be used as a preventative measure during sports activities for people who have had repeated ankle sprains; by adding pronation, the tendency to roll the foot under is reduced.
Persons with flat feet may need to limit the amount of time the SAO is used each day to prevent over-pronation, and it should not be used for more than a couple of months while the ankle heals, as excessive pronation could cause the same knee or back issues that flat feet sometimes create.
The SAO is available in three sizes. Please specify Left or Right foot when ordering.
This product is made in America by American workers.
When you stop using the SAO, you may wish to use a varus/valgus wedge with less angle for a short time, to gradually load and stretch the ankle tendons back to normal extension.