DPT Prosthetics & Orthotics 3

Question 1

A patient classified as K2 for prosthetic prescription is best described as:

Accepted Answer

A limited community ambulator with low variable cadence

Answer

A non-functional ambulator with no prosthetic potential

Answer

A community ambulator able to traverse most environmental barriers

Answer

A high-activity user capable of vigorous physical activity

Question 2

The patellar tendon bearing (PTB) transtibial socket design achieves pressure distribution by:

Accepted Answer

Concentrating load over the patellar tendon and other pressure-tolerant areas while relieving bony prominences

Answer

Enclosing the patella within the socket to create a suction seal

Answer

Locking the knee in extension through proximal socket trimlines

Answer

Using the patellar tendon as the primary suspension mechanism

Question 3

Which spinal orthosis is most appropriate for conservative management of a stable thoracolumbar burst fracture?

Accepted Answer

Thoracolumbosacral orthosis (TLSO)

Answer

Soft cervical collar

Answer

Milwaukee brace (CTLSO)

Answer

Sacroiliac belt

Question 4

In adolescent idiopathic scoliosis (AIS), which brace is the standard of care for curves between 25–40 degrees, worn approximately 23 hours per day?

Accepted Answer

Boston TLSO (underarm brace)

Answer

Milwaukee brace (CTLSO)

Answer

Charleston bending brace (nighttime only)

Answer

SpineCor dynamic brace

Question 5

What is the primary biomechanical goal of a lateral heel wedge foot orthosis for a patient with medial compartment knee osteoarthritis?

Accepted Answer

Shift the center of pressure laterally to reduce the knee adduction moment

Answer

Increase the knee adduction moment to offload the lateral compartment

Answer

Correct valgus knee alignment during stance

Answer

Increase calcaneal inversion to unload the medial arch

Question 6

In a transfemoral prosthesis, which gait deviation indicates that the prosthetic knee axis is positioned too far anterior to the trochanter-knee-ankle (TKA) alignment line?

Accepted Answer

Knee instability (buckling) during early stance weight acceptance

Answer

Excessive knee flexion throughout the swing phase

Answer

Vaulting on the contralateral sound limb

Answer

Circumduction of the prosthetic limb during swing

Question 7

A stroke patient with mild plantarflexor spasticity but adequate active dorsiflexion is prescribed an AFO. Which type is most appropriate?

Accepted Answer

Articulated AFO with adjustable plantarflexion resistance and dorsiflexion assist

Answer

Solid AFO with fixed 90° plantarflexion stop

Answer

Posterior leaf spring AFO

Answer

Ground reaction AFO (GRAFO)