Pes planus foot deformity. It can be defined as partial or complete loss or collapse of the medial longitudinal arch. In severe cases rupture of ptt occurs commonly at the region of hypovascularity 10 15 cm distal to the medial malleolus. Pes planus is a deformity of the foot where the longitudinal arch of the foot is abnormally flattened and can be congenital or acquired. Adult acquired flat foot can have a varied presentation.
Terminology pes planus is also known as flatfoot planovalgus foot or fallen arches 7. Pes planus refers specifically to loss of the arch in the bony structure of the foot. The arches of the foot. Acquired flat foot is a relatively common deformity encountered in the adult population.
Dysfunction of the posterior tibial tendon ptt leads to pes planus of various degrees. It is a condition that leads to flattening of the arch and rolling in of the ankle.
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