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Tibialis Posterior Dysfunction

Tibialis Posterior dysfunction is associated with the loss of function of the Tibialis Posterior muscle resulting from a repetitive strain or overuse of this muscle. The Tibialis Posterior muscle is one of the primary muscle that support the arch of the foot and plays a vital role in walking.

Main contributing factors

  • Repetitive activity or motion that causes strain on the muscle and tendon
  • Direct Trauma
  • Poor foot structure causing excessive midfoot collapse
  • Tight calf muscles
  • Inflammatory processes such as Rheumatoid Arthritis
  • More prevalent in Females over the age of 40 years
  • Sudden increase in activity level
  • Increased BMI


  • Diffuse swelling on the arch of the foot
  • Tenderness and warmth on the medial side of the ankle along the course of the tendon
  • A gradual loss of the arch of the foot
  • Excessive heel wear on the medial side of the shoes
  • gait can become unsteady
  • Difficulty rising onto the toes


Podiatric treatment of tibialis posterior dysfunction can help to reduce both the duration and severity of symptoms. Your podiatrist will be able to recommend an appropriate treatment plan. Common modalities used include Changes in footwear, padding, strapping, physical therapies and orthotics.