Posterior Tibial Tendon Dysfunction

Posterior Tibial Tendon Dysfunction

The Posterior Tibial Tendon serves as one of the major supporting structures of arch, helping the foot to function while walking. Posterior Tibial Tendon Dysfunction (PTTD) is a condition caused by degenerative changes in the tendon, impairing its ability to support the arch. This weakening and changes to the tendon results in flattening of the foot.

PTTD is sometimes also referred to as ‘adult acquired flatfoot’ because it is the most common type of flatfoot developed during adulthood. Although this condition typically occurs in only one foot, it may develop in both feet. PTTD is usually progressive, and can get worse over time if not treated early.

Overuse of the posterior tibial tendon is often the cause of PTTD. In fact, the symptoms usually occur after activities that involve the tendon, such as running, walking, hiking, or climbing stairs.

Symptoms of PTTD may include pain, swelling, flattening (drop) of the arch and an inward rolling of the ankle.  As PPTD becomes more advanced, the arch flattens out even more and the pain often shifts to the outside of the foot. The tendon usually has deteriorated considerably and arthritis often develops in the foot and in severe cases in the ankle.

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The progressive nature of PTTD calls for early diagnosis of the disorder and early treatment for effective treatment. If treated early enough, your symptoms may resolve without the need for surgery and the progression of deterioration can be stopped.

PTTD is usually treated non-surgically and at Sydney Foot Clinic the treatment options offered include;

  • Custom orthotic therapy – orthotics worn in the shoe are prescribed by the podiatrist to give the required arch support.
  • Bracing – an ankle brace or support may be given by the podiatrist to support the foot and ankle.
  • Immobilization – Sometimes a short-leg cast or boot is worn to immobilize the foot and allow the tendon to heal, or you may need to completely avoid all weight-bearing for a short period of time.
  • Medications – Non-steroidal anti-inflammatory drugs (NSAIDS) help reduce pain and inflammation.
  • Footwear – supportive footwear is recommend to support the foot and footwear modifications may be performed to achieve further support.

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