ABFAS Patient Assessment and Evaluation 2

Question 1

During vascular assessment of the foot, which finding on Doppler ultrasound is most consistent with severe peripheral arterial disease?

Accepted Answer

Monophasic waveform with low amplitude at the posterior tibial artery

Answer

A monophasic waveform with low amplitude indicates severely reduced arterial flow, characteristic of advanced peripheral arterial disease.

Question 2

A patient presents with a cavovarus foot deformity. Which neurological condition should be highest on the differential diagnosis?

Accepted Answer

Charcot-Marie-Tooth disease

Answer

Charcot-Marie-Tooth disease is the most common hereditary peripheral neuropathy and classically presents with progressive cavovarus foot deformity.

Question 3

When assessing subtalar joint range of motion, what is considered the normal ratio of inversion to eversion?

Accepted Answer

3:1

Answer

Normal subtalar joint motion exhibits approximately 3:1 ratio of inversion to eversion, with roughly 30 degrees inversion and 10 degrees eversion.

Question 4

A 55-year-old diabetic patient has a non-healing plantar ulcer. Which classification system grades ulcer depth AND the presence of infection and ischemia?

Accepted Answer

University of Texas Wound Classification

Answer

The University of Texas Wound Classification grades wounds on both depth (0–3) and presence of infection/ischemia, providing a more complete staging system than Wagner alone.

Question 5

Which gait phase is most critical to assess when evaluating a patient with a weak tibialis anterior muscle?

Accepted Answer

Loading response

Answer

During loading response, tibialis anterior eccentrically controls foot drop; weakness causes a characteristic foot slap or steppage gait.

(ABFAS) American Board of Foot and Ankle Surgery Practice Test

(ABFAS) American Board of Foot and Ankle Surgery Practice Test

ABFAS Patient Assessment and Evaluation 2