COF Neuromuscular Conditions & Orthotics Flashcards

Which orthosis is specifically designed to inhibit hypertonicity in children with spastic cerebral palsy affecting the foot and ankle?

Answer: Tone-inhibiting AFO (TIAFO)

A tone-inhibiting AFO uses specific trimlines and neutral ankle positioning with maintained plantar surface contact to inhibit abnormal spastic tone through sensory input.

A patient with ALS presents with progressive bilateral foot drop. What is the key orthotic consideration unique to ALS?

Answer: Orthoses must anticipate progressive weakness and allow easy upgrading as the disease advances

ALS is relentlessly progressive; orthotic prescriptions must plan for escalating weakness, potentially requiring serial upgrades from AFO to KAFO as function declines.

In Parkinson's disease, orthotic management is LEAST effective for which gait feature?

Answer: Festination and freezing of gait

Festination and freezing of gait in Parkinson's disease are primarily neurological phenomena related to basal ganglia dysfunction and are not corrected by orthotic devices.

What is the primary orthotic goal for a patient with hereditary spastic paraplegia (HSP)?

Answer: Manage lower limb spasticity, equinus, and scissoring to maintain functional gait

HSP causes progressive spastic paraparesis; AFOs and occasionally KAFOs manage equinus deformity, clonus, and scissoring gait to preserve ambulatory function.

A patient recovering from Guillain-Barré syndrome has improving but still weak dorsiflexors. Which AFO design best accommodates recovery?

Answer: Articulated AFO with adjustable and progressively reducible dorsiflexion assist

An articulated AFO with adjustable dorsiflexion assist can be progressively reduced as dorsiflexor strength returns, preventing over-bracing during the neurological recovery phase.

In the United States, which system is used to clinically describe and bill for the type and level of a lower limb orthosis?

Answer: HCPCS L-codes with anatomical joint descriptors (e.g., AFO, KAFO)

In the US, orthoses are described using HCPCS L-codes combined with anatomical joint descriptors such as AFO and KAFO for both clinical communication and insurance billing.