Peroneal tendon subluxation
The muscles on the outside front part of the shin are called the peroneals; their
tendons pass mainly around the back of the lower bone around the outside of the ankle and
the tendons act to pull the foot up and out, but also help to stabilise the ankle, and so
help the ligaments. The tendons are held in position at the ankle by a small strip of
tissue, that may be damaged and so will let the tendons move around the ankle. As they
move forwards across the ankle, they can be heard or felt to "snap" and this can
cause pain and lead to the ankle feeling weak or giving way.
Peroneal tendon subluxation Treeatment
Treatment involves either repairing or substituting for the damaged strip of tissue.
Alternatively the fibula bone at the ankle can be cut and repositioned or a groove can be
cut into it to lessen the chances of the tendons moving.
Surgery has its usual risks and success rates of 30 to 80% in experienced hands. Time off
manual work is normally around 2 to 3 months.
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