CTO CTO Lower Extremity Orthotics

Question 1

What does the acronym AFO stand for in orthotics?

Accepted Answer

Ankle-Foot Orthosis

Answer

AFO stands for Ankle-Foot Orthosis, a device that encompasses the ankle and foot to control motion and provide support.

Question 2

A solid ankle AFO is most appropriate for a patient with which condition?

Accepted Answer

Foot drop with spasticity requiring control in multiple planes

Answer

A solid ankle AFO is indicated for foot drop with spasticity because it controls sagittal, frontal, and transverse plane motion simultaneously.

Question 3

What is the primary purpose of a supramalleolar orthosis (SMO)?

Accepted Answer

Provide mediolateral stability at the ankle while allowing sagittal plane motion

Answer

An SMO provides mediolateral stability at the ankle and subtalar joint while permitting sagittal plane dorsiflexion and plantarflexion.

Question 4

Which KAFO component is responsible for preventing knee hyperextension?

Accepted Answer

Posterior offset knee joint

Answer

A posterior offset knee joint positions the mechanical joint axis posterior to the anatomical knee joint, creating an extension moment that prevents hyperextension.

Question 5

A patient with L4 incomplete spinal cord injury most likely requires which orthotic device?

Accepted Answer

Knee-ankle-foot orthosis (KAFO)

Answer

An L4 incomplete spinal cord injury typically results in weakness of the knee extensors and ankle dorsiflexors, requiring a KAFO for safe ambulation.

(CTO) Certified Orthotic Technician Practice Test

(CTO) Certified Orthotic Technician Practice Test

CTO CTO Lower Extremity Orthotics