1. Don't Be Bendin' a Tendon
Tibialis posterior pain is a pain that runs on the inside of your lower leg down to the inside of your ankle. The cause of tibialis posterior pain can be from the muscle or tendon by the same name. If the tibialis posterior muscle is causing the pain, you may experience "shin splints" which is a vague description of pain around the shin area. The more serious condition, acquired flat foot, involves injury to the tendon. If left untreated, tibialis posterior tendon damage can cause the tendon to rupture, causing pain and problems with mobility.
2. All Pain But No Gain
Tibialis posterior pain gets worse when pushing the foot downward or when turning the foot inward. The bone located in the center of the top of your foot, where the laces are tied, can become painful just to touch. The tendon can be particularly painful to touch at the inside of the ankle, on what is commonly called the inside ankle bone.
3. Don't Become a Flat Foot
If your pain continues or worsens, you should see a doctor immediately. You may need surgery to repair the tendon or use special inserts for your shoes. If left untreated, some cases can cause permanent damage. The tibialis posterior tendon helps to hold up the arch in your foot, which gives your foot flexibility. Untreated, you can develop a flat foot that causes strain on the arch and foot, as well as the tendon. Acquired Flat Foot can cause pain and balance problems, and may require you to wear orthotics in your shoes to walk.
4. What's the P.R.I.C.E. to Relieve Pain?
Treatments to help relieve pain and increase the function of tibialis posterior dysfunction include Protecting the painful area, Resting the whole foot, Ice to relieve swelling, Compression bandages to decrease swelling and Elevating the leg to reduce swelling. The PRICE treatment regimen is best used when the injury first happens and reduces the risk of long term disability.
5. Steps to Prevention
Use common sense when playing sports or exercising. Don't increase your routine suddenly because it may stress your body. Change or add to your routine gradually so your body can get used to the new routine. Always wear shoes with good support, especially arch supports. Look for athletic shoes that have shock absorbing insoles to reduce the stress on your lower legs and feet.


