There is a surgery in which they cut some tendons in hands and it can help, but I am not sure if it helps with arthiritis, cause I think it is for Carpal Tunel and it is not the same(not really sure if it is not the same)
I can give you 1 coin but you have to give me one back
It's the thought that counts.. I hope so at least, and now I summoned you from slumber or something like that.