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Peroneal tubercle

Dr Yuranga Weerakkody and Dr Charudutt Jayant Sambhaji et al.

Two bony projections or protuberances may be seen from the lateral wall of the calcaneum – the peroneal tubercle and the retrotrochlear eminence.

The peroneal tubercle is present immediately inferior to the fibular malleolus, lying in between the two tendons, it separates the tendons of peroneus brevis and the peroneus longus. The common synovial sheath that covers the two tendons proximal to the tubercle, divides into two slips to individually enclose the peroneal tendons at the tubercle and beyond. The peroneus brevis lies superior to the tubercle and the peroneus longus lies inferior to the tubercle.

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