I've had sever ankle injuries over the years monsta, but they were sprains and hairline fractures, so i dont know if what worked for me will work for you.

A few things that I was given to do, band work from different angles, almost like calf presses.

the roatation board, it was a half circle on the bottom, I would stand on it and shift my wieght on my ankle in a clockwise, then counter clockwise motion (if that makes sense).

slide mat work, where you would be on a friction control mat, and you would slide back and forth from right to left.

I hope some of this helps, I also find that when my feet get tired and sore, putting a tennis ball on the ground, and rolling your arch back and forth over it seems to help.

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