ABFAS ABFAS Surgical Anatomy and Biomechanics 3

Question 1

The flexor hallucis longus tendon passes through which anatomical structure before entering the plantar foot?

Accepted Answer

Sustentaculum tali groove

Answer

The flexor hallucis longus tendon passes through a groove on the inferior surface of the sustentaculum tali before entering the plantar compartment.

Question 2

Which compartment of the leg contains the peroneus longus and brevis tendons?

Accepted Answer

Lateral compartment

Answer

The peroneus (fibularis) longus and brevis muscles reside in the lateral compartment of the leg and evert and plantarflex the foot.

Question 3

In a cavus foot deformity, the calcaneal pitch angle is typically:

Accepted Answer

Increased above 30°

Answer

Cavus foot is associated with an elevated calcaneal pitch angle (>30°) due to the plantarflexed forefoot and raised medial arch.

Question 4

The windlass mechanism of the foot describes the role of which structure in arch supination?

Accepted Answer

Plantar fascia

Answer

The windlass mechanism describes how toe dorsiflexion tightens the plantar fascia, raising the arch and supinating the foot during propulsion.

Question 5

Which metatarsal is most commonly involved in a stress fracture due to its rigid articulation and reduced mobility?

Accepted Answer

Second metatarsal

Answer

The second metatarsal is the most common site of metatarsal stress fractures because its rigid articulation at the Lisfranc joint concentrates stress during repetitive loading.

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

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

ABFAS ABFAS Surgical Anatomy and Biomechanics 3