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Dynamic Ankle Foot Orthotics

From Holoprosencephaly

Dynamic Ankle Foot Orthotic

A Dynamic Ankle-foot Orthotic (abbreviated: DAFO) is a brace, usually plastic, worn on the lower leg and foot to support the ankle, hold the foot and ankle in the correct position, and correct foot drop. Also known as a foot-drop brace, AFOs are commonly used in the treatment of disorders that affect muscle function such as cerebral palsy, polio and multiple sclerosis. AFOs can be used either by providing support to weak or wasted limbs or by positioning a limb with tight, contracted muscles into a more normal position.

AFO's generally refer to lightweight ploypro plastic shoe inserts. The devices are attached to the calf with a strap and a piece runs up under the foot. The "L" effect of the plastic shell counteracts foot drop and allows those suffering to better control their movement.

KYDEX is the preferred thermoplastic. Soft, padded "softgoods" cover the plastic Cure-BAN anti-microbial impregnated softgoods protect and promote skin care; again, hook and loop closures allow the calf and foot to be wrapped and attached to the device. Heel float, ankle-foot contracture and various neurological conditions respond well to this type product.

Fast-LOK ambulation pads are an option as well as anti-rotation bars and toe posts to protect the toes.

Purpose:

There are three major objectives for the design of any orthosis:

1. Restoration of normal function and ability
   • control of motion
   • correction of deformity
   • compensation for weakness
2. Make it as comfortable to wear as possible
3. Minimize the abnormal appearance of the orthosis

Indications:

A DAFO is considered medically necessary if: Plantar flexion contracture of the ankle with dorsiflexion on passive range of motion testing of at least 10 degrees (i.e., a non-fixed contracture) Reasonable expectation of the ability to correct or prevent the contracture in those who may become ambulatory Contracture is interfering or expected to interfere significantly with the patient’s functional abilities Used as a component of a therapy program that includes passive stretching of the involved muscles and/or tendons.

Sources:
http://www.anklesplint.com                                             
http://www.multipodus.com