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Achilles tendon rupture — RCPSC EM MCQ

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EasyMusculoskeletalAchilles tendon ruptureRCPSC EM

A 44-year-old recreational squash player felt a sudden pop in the posterior ankle and says he was hit from behind. He has weak plantarflexion and a positive Thompson test; radiographs show no fracture. What is the most likely diagnosis?

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Correct answer: C — Achilles tendon rupture

A sudden pop, the sensation of being struck, weak plantarflexion, and positive Thompson test are typical of Achilles tendon rupture. Immobilisation in plantar flexion and orthopaedic follow-up are required.

Reference: Canadian emergency orthopaedic practice