CTO Device Fitting & Adjustment 2

Question 1

When fitting a supramalleolar orthosis (SMO), which anatomical landmark is most critical to check for adequate clearance?

Accepted Answer

Medial malleolus

Answer

The medial malleolus is a prominent bony prominence that requires adequate clearance in an SMO to prevent pressure sores.

Question 2

A patient reports their TLSO feels too tight after wearing it for two hours. Which initial assessment step is most appropriate?

Accepted Answer

Check for erythema and assess trim lines at pressure points

Answer

Checking for erythema and evaluating trim lines at pressure points helps identify the specific cause of discomfort before making targeted adjustments.

Question 3

Which type of ankle joint allows dorsiflexion but blocks plantarflexion in an AFO?

Accepted Answer

Posterior stop joint

Answer

A posterior stop joint in an AFO limits plantarflexion while allowing dorsiflexion, commonly used for dropfoot with spasticity concerns.

Question 4

During dynamic alignment of a prosthetic-orthotic device, excessive heel rise at toe-off most likely indicates:

Accepted Answer

Too much dorsiflexion resistance

Answer

Excessive heel rise at toe-off suggests that dorsiflexion resistance is too great, preventing the heel from staying down through mid-stance.

Question 5

A child fitted with a KAFO for myelomeningocele is observed with medial knee thrust during stance. The MOST likely cause is:

Accepted Answer

Valgus malalignment of the knee joint

Answer

Valgus malalignment of the knee joint axis causes the knee to shift medially during weight-bearing, producing a medial thrust.

(CTO) Certified Orthotic Technician Practice Test

(CTO) Certified Orthotic Technician Practice Test

CTO Device Fitting & Adjustment 2