Hi.

Sounds like you are right - I was thinking peroneus brevis.

My question is - why did you have the hallax valgus op? What did the surgeon do? Did it change your arch?

Mind you, if you have been runnning ok since then 3 times a week or so, this would have come up sooner.

Otherwise, I was thinking of an eccentric-only programme to try get the structure of the tendon back to normal and progress from there.

Have no idea why it might have happened...???