ankle-foot orthosis


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ankle-foot orthosis

an orthosis beginning at the toes, crossing the ankle, and terminating on the calf.

ankle-foot orthosis (AFO)

any of a variety of protective external devices that can be applied to the ankle area to prevent injury in a high-risk athletic activity, to protect a previous injury such as a sprain, or to assist patients with chronic joint instability with walking. An AFO is often used by patients unable to dorsiflex the ankle during gait. It may be used to maintain anatomical position in a person that has a footdrop.
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ANKLE-FOOT ORTHOSIS

ankle-foot orthosis

Abbreviation: AFO
Any of a class of external orthopedic appliances, braces, or splints devised to control, limit, or assist foot and ankle motion and provide leg support. Typically, orthotics are made of lightweight materials such as thermoplastics. See: illustration

Patient care

A variety of ankle-foot orthoses are used. In the treatment of Achilles' tendon rupture, e.g., the orthosis holds the foot at a right angle to the horizontal plane of the body, in plantar flexion.

See also: orthosis
References in periodicals archive ?
3D Finite Element Analysis of Ankle-Foot Orthosis on Patients with Unilateral Foot Drop: A Preliminary Study.
Experimental and computational analysis of composite ankle-foot orthosis.
Effect of ankle-foot orthosis on rollover shape in adults with hemiplegia.
Effect of ankle-foot orthosis alignment and foot-plate length on the gait of adults with poststroke hemiplegia.
Effects of a simple functional electric system and/or a hinged ankle-foot orthosis on walking in persons with incomplete spinal cord injury.
Abbreviations: AFO = ankle-foot orthosis, FNS = functional neuromuscular stimulation, FSKC = finite state knee controller, FSR = force sensitive resistor, HNP = hybrid neuroprosthesis, IRGO = isocentric reciprocal gait orthosis, KAFO = knee-anklefoot orthosis, SCI = spinal cord injury, SCKM = stance control knee mechanism, UECU = Universal External Control Unit.
Design of an automated device to measure sagittal plane stiffness of an articulated ankle-foot orthosis.
Adaptive control of a variable-impedance ankle-foot orthosis to assist drop-foot gait.
27 Average -- CAD = computer-aided design, PD-AFO = passive-dynamic ankle-foot orthosis.
To test for the effect of assistive mobility devices on sensor-fused orientation output, we used the following devices: exoskeletal transtibial prosthesis, endoskeletal transtibial prosthesis, knee-ankle-foot orthosis (KAFO) with aluminum uprights, KAFO with stainless steel uprights, ankle-foot orthosis, Challenger Low Wide walker (Evolution Technologies; Port Coquitlam, Canada), standard walker, Tango wheelchair (OrthoFab; Quebec City, Canada), and GTi wheelchair (Quickie; Phoenix, Arizona).
A thermoplastic stirrup shell (Figure 2) is positioned just below the thermoplastic ankle-foot orthosis (AFO) shell.
When pathologies such as hemiplegia are present, ankle-foot function is disrupted and an ankle-foot orthosis (AFO) may be worn in an attempt to restore function.