Tendonitis of the foot and ankle can affect any of the tendons in the area. The most common ones will be discussed here.


The peronei are three small muscles that run down the outside of the lower leg. They are responsible for movement and control of the foot. The main movement that they produce is called EVERSION. This is when the sole of the foot is turned outwards. You can feel these muscles contract when you do this movement.

Tendonitis of the peroneal tendons is not that commmon in comparison to Achilles tendonitis. The most commmon site for it to occur is as the tendons run behind the LATERAL MALLEOLUS (outside ankle bone).


Treatment of this condition will follow along very similar lines to other soft tissue problems. Rest from aggravating activity will be necessary as well as physical therapy in the form of electrotherapy and/or soft tissue massage. This needs to be followed by stretching and some remedial strengthening and proprioceptive work. The latter is necessary because the peronei play a major role on the stability of the ankle and foot. They will need to be rehabilitated in this role.


Tibialis posterior is a significant muscle in the lower leg. It originates from the back of the tibia and runs down into the foot as a tendon behind THE MEDIAL MALLEOLUS (inside ankle bone). From here it travels underneath the sole of the foot splitting into various strands of tendon to insert into a variety of the bones of the foot.

It acts a little like a sling in the way it supports the inside of the foot. As it passes behind the ankle bone and under the foot it can be stretched by the mechanical effect of the arch of the foot dropping. Over a period of time this can stretch the tendon and it can be render the muscle very inefficient and even cause the tendon to rupture.


Most tibialis posterior tendonitis problems are only noticeable when they become chronic. They are not a common tendon for the development of acute tendonitis symptoms. However an acute or tendonitis of this structure should be treated with rest, anti-inflammatory physical therapy treatment and rehabilitation. Cases of chronic or long term tendonitis will probably need a permanent orthotic (insole) to improve the posture of THE MEDIAL ARCH of the foot. This will take the stress off the tendon and help prevent any further damage. The opinion of an orthopedic specialist may be advisable if this particular type of tendonitis of the foot and ankle is particularly chronic and the foot posture is markedly altered.

For details of immediately downloadable rehabilitation programmes for tendonitis of the foot and ankle please click here.