Painful progressive flatfoot, otherwise known as posterior tibial dysfunction or adult-acquired flatfoot, refers to inflammation of the tendon of the tibialis posterior. This condition arises when the tendon becomes inflamed, stretched, or torn. Left untreated, it may lead to severe disability and chronic pain. People are predisposed to tibialis posterior tendonitis if they have flat feet or an abnormal attachment of the tendon to the bones in the midfoot.
Nonsteroidal anti-inflammatory medications, icing, physical therapy, supportive taping, bracing, and orthotics are common treatments for painful progressive flatfoot. Note: Please consult your physician before taking any medications. In some cases, a surgery may need to be performed to repair a torn or damaged tendon and restore normal function. In the most severe cases, surgery on the midfoot bones may be necessary to treat the associated flatfoot condition