This joint is the one that is most involved in grasping and working of the thumb. Therefore it is most involved in late arthrosis and disability.
There is a possibility to cure it surgically by inserting of a silicone (custom made) part to replace damaged cartilage and remove disability.
This procedure is permitted to be done only in Europe and the question is about the price, how much would you invest to be cured (except participating of Insurance for Chondroplasty).