Common Peroneal Nerve Fibula Neck — FRCA Primary MCQ

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EasyAnatomyCommon Peroneal Nerve Fibula NeckFRCA Primary

The common peroneal nerve is most vulnerable to injury at which anatomical site?

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Correct answer: E — The neck of the fibula

The common peroneal (fibular) nerve wraps around the neck of the fibula where it is subcutaneous and vulnerable to compression (e.g. from plaster casts / lithotomy position / lateral decubitus position with inadequate padding). Injury causes foot drop (loss of ankle dorsiflexion and eversion) and sensory loss on the dorsum of the foot.

Reference: RCoA 2021 Primary FRCA Curriculum