CTO Patient Evaluation & Measurement 3

Question 1

When evaluating forefoot varus using a subtalar neutral casting technique, the patient's subtalar joint should be positioned:

Accepted Answer

In the neutral position

Answer

Casting or measurement of forefoot alignment is performed with the subtalar joint in neutral to isolate intrinsic forefoot deformity from rearfoot compensation.

Question 2

A patient's skin integrity evaluation reveals grade 2 pressure injury over the fibular head. What is the appropriate next step before orthotic fitting?

Accepted Answer

Delay fitting and notify the prescribing clinician

Answer

An existing pressure injury is a contraindication to immediate orthotic application; the prescribing clinician must be notified to address wound management first.

Question 3

During volumetric water displacement measurement of a residual limb, the primary purpose is to:

Accepted Answer

Assess edema changes over time

Answer

Volumetric water displacement provides an accurate, reproducible measure of limb volume to track edema fluctuations across clinical visits.

Question 4

Observation of a patient walking reveals an equinus gait pattern. Which functional range-of-motion deficit is the primary contributor?

Accepted Answer

Inadequate ankle dorsiflexion

Answer

Equinus gait results from insufficient ankle dorsiflexion, preventing the tibia from advancing over the foot during midstance and terminal stance.

Question 5

For a pediatric patient being measured for a hip abduction orthosis, which key measurement determines abduction angle settings?

Accepted Answer

Radiographic center-edge angle of Wiberg

Answer

The center-edge angle from radiographs indicates acetabular coverage of the femoral head, directly guiding the abduction angle needed to maintain reduction.

(CTO) Certified Orthotic Technician Practice Test

(CTO) Certified Orthotic Technician Practice Test

CTO Patient Evaluation & Measurement 3