A common condition, flatfoot affects foot structure through abnormal development or loss of the longitudinal arch. Flatfoot is normal for infants and toddlers, most of whom develop arches throughout later childhood. Those who do not will experience permanent flatfoot.

An alternate form of flatfoot, known as adult-acquired flatfoot, results from an inflammation of an adult’s tibialis posterior tendon.


Lifelong flatfoot is often linked to pronation, an abnormal inward slope of the ankle bones. The condition is not usually painful, and any discomfort should be reported to a specialist immediately.

Adult-acquired flatfoot occurs when the tibialis posterior tendon becomes inflamed, torn or separated, leading to the gradual loss of a normal arch. Left untreated, adult-acquired flatfoot may result in permanent damage.


Depending on the type of flat foot, Dr. Marso may recommend one or more of the following options:

  • Anti-inflammatory medications
  • Icing
  • Physical therapy
  • Supportive taping
  • Bracing
  • Orthotic inserts

In some cases, surgery may be required to provide the patient with stable arch support. A variety of surgery options exist depending on the nature and severity of the case. In these instances, Dr. Marso works closely with patients to determine the optimal procedure for his or her case.

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