Posterior Tibial Dysfunction

People who suffer with Posterior Tibial Dysfunction often complain about a pain on the inside of the ankle, swelling in the area and often, they are unable to stand on their toes. This is more common in women over 40 years old, but it does happen to men too.

The posterior tibial tendon starts in the calf, passes down behind the inside of the ankle and attaches to bones in the middle of the foot. It provides support as you push off on your toes when walking. If this tendon becomes inflamed, or damaged, there is pain on the inner ankle and a gradual loss of the inner arch on the bottom of your foot, leading to flatfoot. This condition is also called 'Adult Acquired Flat Foot'. It is not hereditary but may be caused by an inherent abnormality of the tendon. Inflammation of the tendon may be caused  by excessive force on the foot, such as running uphill, or in sports where there is a rapid change of direction, for example football, hockey or tennis.

Those who are living with diabetes or inflammatory diseases such as rheumatoid arthritis are more likely to develop this condition, as is anyone with previous trauma to the foot. Obesity and pregnancy often put more pressure on the tendon and lead to inflammation.

An easy diagnostic exercise is to stand facing a wall. Support yourself against the wall and lift the unaffected foot out of

the way, whilst rising onto tiptoes of the other.  From behind, a companion will be able to see if the heel of the affected foot turns inward. If there is no inward rotation, then dysfunction of the posterior tibial tendon is indicated and a trip to your podiatrist is recommended.

Treatment of the disorder will involve orthotics, ranging from small shoe inserts to fixed ankle supports. Sometimes a walking boot is recommended.

Without treatment, the flatfoot that develops from posterior tibial tendon dysfunction eventually becomes rigid.  Pain increases and spreads to the outer side of the ankle and consequently, the way you walk may be affected causing pain in the hips knees and back.

If you think you may have this disorder, rest is recommended, especially reducing the amount of exercise which causes the pain. Utilise low impact exercise instead, such as swimming. Always warm up with stretches before exercising and using ice on the area can reduce inflammation. For specific advice on orthoses, a biomechanical assessment is recommended.

Please don't ignore this problem, it will get worse and your podiatrist can help you.