Lower Limb Orthosis Quiz

What is the definition of an orthosis?

• A device used to modify the structural and functional characteristics of the neuromuscular and skeletal systems

• A device used to enhance vision

• A device used to regulate body temperature

• A device used to improve hearing

Which component of orthoses is described as 'shells, pads, straps, foot orthoses, and shoes'?

• Structural components

• Cosmetic components

• Articulating components

• Interface component

What is the purpose of rocker soles in orthotic devices?

• To rock the foot from heel-strike to toe-off without requiring the shoe to bend

• To provide additional cushioning

• To improve grip on slippery surfaces

• To increase body temperature

Which type of orthosis is indicated for as long as necessary and allows joint movement wherever possible and appropriate?

• Dynamic

• Permanent

• Static

• Temporary

What is the main function of a dorsiflexion assist AFO?

• Assist motion with a coil spring compressed in stance phase rebounds in the swing phase

• Restricts plantar flexion but allows unlimited dorsiflexion

• Restricts dorsiflexion and allows unlimited plantar flexion

• Stops plantar flexion and stops or limits dorsiflexion

Which component of an AFO is often referred to as the footplate?

• Calf shell

• Shoe insert

• Calf strap

• Proximal stirrup

What is the mechanism of tone reduction effect in a special design AFO?

• Enhancement of reflexes, pressure over muscle insertions, active and passive prolonged stretch, orthokinetics

• Enhancement of reflexes, pressure over bone insertions, active and passive short stretch, orthodynamics

• Inhibition of reflexes, pressure over muscle insertions, active and passive prolonged stretch, orthokinetics

• Inhibition of reflexes, pressure over bone insertions, active and passive prolonged stretch, orthodynamics

What is the primary goal of all orthotic devices including AFOs?

• Stabilization of motion, improvement of flexibility, reduction of pain

• Support of motion, enhancement of the deformity, compensation for strength

• Enhancement of motion, prevention of the deformity, strengthening of muscles

• Control of motion, correction of the deformity, compensation for weakness

Which type of AFO is indicated for patients with motor weakness affecting all compartments of the ankle-foot complex?

• Spiral AFO

• Solid AFO

• Posterior leaf spring AFO

• Dorsiflexion stop AFO

What is the purpose of a metatarsal pad 'cookie' in shoe modifications?

• Provides cushioning for the heel

• Transfers the weight from the 1st metatarsal head to the shaft and the other metatarsal heads

• Reduces friction in the shoe

• Enhances arch support