Floor reaction afo front view.
Indication of floor reaction orthosis.
A ground floor reaction ankle foot orthosis grafo or frafo is a type of custom fabricated molded plastic afo capable of triplanar control of the foot ankle complex.
To provide ground reaction forces to the knee which assist in stabilizing the knee during ambulation.
It holds the ankle in equinus to prevent the heel from touching the ground.
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Floor reaction orthosis it was described by saltiel for the use of weak quadriceps or plantar flexors in 1969.
Generally formed from polypropylene there are several variations on the grafo but all include an anterior shell which captures the tibia proximally.
Indication management of a crouch gait which is characterized by excessive ankle dorsiflexion increased knee flexion and increased hip flexion in midstance.
In these cases the floor reaction afo functions to maintain the affected joints in proper alignment to accentuate knee extension at midstance and compensate for weak or absent gastroc soleus calf muscles.
A floor reaction afo is generally used with patients affected by neurological conditions such as spina bifida cerebral palsy brain injury spinal cord injury and post polio paralysis.
Contraindications hip flexion contracture 30 knee flexion contracture 20 and a thigh foot angle 15 external.
Dorsiflexion assist for foot drop.
Can be made with carbon graphite for light weight needs such as multiple sclerosis.
As the body weight brings the heel downwards the supra patellar band will press the knee back preventing knee from buckling during stance phase.