Posterior tibial tendon dysfunction is a condition where changes in the posterior tibial tendon impair its ability which can cause flattening of the foot and pain along the tendon. It is often called adult acquired flatfoot and is the most common cause of flatfoot in adulthood. The foot presents with a flattened arch, increased pronation in gait, and pain along the tendon course. If this condition goes untreated for a long period of time and the tendon is over stressed then a tear in the posterior tibial tendon may occur. The posterior tibial tendon can then become very painful with walking, standing, or climbing stairs due to the inflammation or tendonitis in the tendon. The posterior tibial tendon not only helps stabilize the arch of the foot but also is one of the main tendons in the foot/ankle. Without the appropriate support this condition can progress and worsen over time.


  • Pain along the arch and inside of the ankle
  • Redness and swelling to the area
  • Pain with walking, running, climbing stairs
  • Flattening of the arch
  • Increased pronation (inward rolling) during gait
  • Pain in the ankle


  • Orthotic/AFO devices
  • RICE (Rest, Ice, Compression, Elevation)
  • Physical therapy
  • Modify activities
  • Immobilization in boot or cast
  • Anti- inflammatory medication
  • Shoe gear modification
  • Surgical repair in advanced cases or if conservative treatment has failed

If you are experiencing symptoms of Posterior Tibial Tendinitis, request an appointment today! 

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