Foot pain in the side of the foot can be caused by Tarsal Tunnel Syndrome. The tarsal tunnel is found on the inside of the ankle. It is a space that the tibial nerve passes through on its way from the leg into the foot. If the nerve doesn't have enough space in the tunnel and therefore has pressure put on it, pain, numbness or pins and needles can occur on the inside of the ankle and round to the side of the foot.
The Symptoms of Tarsal Tunnel Syndrome
Tarsal Tunnel syndrome is identified by one or more of the following symptoms:
- Pain on the inside of the ankle perhaps spreading down to cause foot pain in the side of the foot
- Pins and needles on the inside of the ankle spreading down to the inside of the foot
- Numbness on the inside of the ankle or down towards the inside of the foot
How is Tarsal Tunnel Syndrome Diagnosed?
The location of the pain and the way it started are the most important factors in determining if foot pain on the side of the foot is attributable to tarsal tunnel syndrome. Tarsal Tunnel Syndrome will normally come on slowly over time rather than being caused by a single traumatic incident.
A test called Tinel's sign can be used. Tarsal Tunnel Syndrome is identified if gentle tapping over the site of the tarsal tunnel brings on the pain or pins and needles.
If there is any doubt as to whether the problem is Tarsal Tunnel Syndrome a test called nerve conduction studies can give information about how well the nerve is working and an MRI scan will build up a picture of the tunnel.
Treatment for Tarsal Tunnel Syndrome
- The first line of treatment for Tarsal Tunnel Syndrome is to reduce any local inflammation which will be taking up space in the tunnel and thus adding pressure onto the nerve. This is achieved by the use of ice and where appropriate anti inflammatory tablets or rub.
- Exercises to alter the movement pattern of the lower limb can contribute to a change in foot position and consequent increase in tunnel space.
- Orthotics inserted into the shoe can alter the foot position and therefore create more space in the tunnel
- Surgery is usually only considered when other treatments have not given relief. It is indicated if MRI shows an obstruction in the tunnel such as a ganglion from the ankle joint pressing onto the nerve.
Disclaimer: The information on this page is written to help you understand your injury. There are several possible causes for foot pain and should you have any concerns you should always seek advice from a qualified health professional such as a Chartered Physiotherapist or your GP.
