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 ?
A novel device to evaluate the stiffness of ankle-foot orthosis devices.
Stiffness of the Arizona ankle-foot orthosis before and after modification for gait analysis.
0 [+ or -] SD 8 M (Control) AFO = ankle-foot orthosis, DF = dorsiflexion, F = female, L = left, Max = maximum, M = male, n = neutral or 90[degrees], N = number or sample, PF = plantar flexion, R = right.
He was prescribed an ankle-foot orthosis, but rarely used it because he said it was uncomfortable.
These mechanisms include a double-shell ankle-foot orthosis that pushes up on a control rod during weight-bearing, a hinged footplate that engages knee-flexion resistance based on ankle angle, or a pneumatic bladder that engages upon weight-bearing.
The first system to be introduced clinically for gait compensation was a mechanical structure that locked or limited joint movement during the stance phase of gait, such as the ankle-foot orthosis (AFO), the knee-AFO (KAFO), or the hip-KAFO (HKAFO), depending on the specific joint weakness.
Abbreviations: 6MWT = 6-minute walking test, 10MWT = 10 m walking test, AFO = ankle-foot orthosis, ASIA = American Spinal Injury Association, C = cervical, CBO = controlled-brake orthosis, DC = direct current (motor), ESO = energy-storing orthosis, FES = functional electrical stimulation, HAS = hybrid assistive system, HKAFO = hip-knee-ankle-foot orthosis, HyPo = hybrid powered orthosis, KAFO = knee-ankle-foot orthosis, PID = proportional-integral-derivative, RGO = reciprocating gait orthosis, SCI = spinal cord injury, SFMO = self-fitting modular orthosis, T = thoracic, WISCI II = Walking Index for Spinal Cord Injury Version 2.
At discharge from inpatient rehabilitation, the neurological examination had improved to T4 AIS C (Table 1) and he was ambulating limited household distances using a rolling-walker and an ankle-foot orthosis (AFO) with 1-person assistance.
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.