Is there any treatment for Flat Feet? Like Surgery or any special treatment except insoles!?

I heard of a “keyhole operation to correct painful flat feet” I’m thinking of taking this route due to the pain. But I do not know the success rate of this procedure. It makes me nervous thinking the pain could get worst if I get it done. If there’s anyone that had any type of treatment done with no complaints please let me know I would really appreciate it Thanks!!