Free practice question 15 of 20 · Foot & ankle
An original single best answer question in the style of the FRCS (Tr & Orth) Section 1 paper, with the answer and a referenced explanation. Pick an answer to reveal it, then rate how sure you were.
A weight-bearing radiograph of a 50-year-old woman with hallux valgus shows the sesamoids lying lateral to the first metatarsal head. In fact the sesamoids have kept their relationship to the second metatarsal while the metatarsal head has drifted medially off them.
Which structures tether the sesamoid complex in this position?
Topic guide
Foot & ankle: what the exam tests
Syllabus coverage, high-yield themes and the common traps.
Interactive 3D
Foot skeleton
The skeleton of the foot: seven tarsal bones, five metatarsals, fourteen phalanges and the sesamoids under the first metatarsal head.
Interactive 3D
Flexor tendon sheath & pulleys
A finger from the side with flexor digitorum superficialis and profundus running in the flexor sheath under the five annular pulleys.
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