Tibialis Posterior Dysfunction (Acquired Flatfoot)
The tibialis posterior tendon is one of the major stabilising structures in the foot. It runs from the inside aspect of the ankle, from the medial malleolus, and inserts into the navicular. It supports the arch and helps to keep the foot turned inwards when walking. It can be damaged by wear and tear, and acute trauma. Initially pain is felt along the length of the tendon behind the medial malleolus but as the problem worsens, deformity can become apparent, the foot will flatten and start to turn outwards. Pain may occur on the outside part of the ankle and over time the joints can become affected and become arthritic.
In the early stages of tibialis posterior tendon dysfunction, the use of oral analgesics, orthotics and physiotherapy are useful, and a splint may be required. The use of injections with platelet rich plasma or with cortisone are also options and Dr Rao will explain all of these to you at your consultation.