Clinical features of rupture of the posterior tibial tendon

What are some clinical features of dysfunction or rupture of the posterior tibial tendon?

• Acquired pes planus— also called a flat foot, in which the normal contour of the longitudinal arch becomes flattened.

• “Too many toes” sign— caused by hindfoot valgus and forefoot abduction. When the foot is viewed from behind the heel, you can see more toes over the lateral side of the affected foot than on the unaffected side.

• “Heel-rise” sign— the inability to rise to the ball of the affected foot while lifting the unaffected foot.


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