Helbing’s Sign

Helbing’s Sign:
Medial bowing of achilles tendon observed from behind when patients is standing in relaxed calcaneal stance position. Assumed to indicate an excessively pronated foot – however is patient has a rearfoot varus, that has compensated via subtalar joint pronation, the calcaneus will be vertical and Helbing’s sign will not be present (ie achilles tendon will be straight)

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