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Palpation of the peronei

About one finger-breadth under and slightly anterior to the lateral malleolus, a bony notch can be palpated: the trochlear process . Since this prominence is situated between both peroneal tendons, the palpating finger will be lifted off by the hardening tendons when an eversion movement is performed. The peroneus longus is plantar and the peroneus brevis is dorsal to the trochlear process. The tendon of the peroneus longus can be followed proximally under and behind the malleolus. The tendon of the peroneus brevis is felt to insert on the base of the fifth metatarsal.

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