Flatfoot is a description of foot position using the medial arch as a reference point.
Causes
- Inherited structural flatfoot
- May be an insufficiency of ligaments or ligamentous strength
- May be an articulation genetic mal-placement
- May be abnormal placement or weakness of the posterior tibial tendon or insertion
- Posterior tibial tendon dysfunction
- The tendon normally inserts into the medial navicular supporting the talar head and thus supporting the medial arch of the foot
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- Tarsal coalition