Hi . I happen to be the husband of Kelly Mack, the author of the second article Erin linked to. I just want to note, and what you will see in that article, is that Kelly opted out of hand surgery because her hands, while damaged, work and are not in extreme pain. Plus, no doctor was sure what exactly to do with her hands.
Every person has to make their own decisions based on their circumstances. I'm guessing you have had physical therapy, but I want to share with you this other article from Kat (the author of the third article Erin shared), who happens to be an occupational therapist, on hand strengthening: https://rheumatoidarthritis.net/living/stronger-hands-exercises.
Hoping you can get various options and relief soon. Best, Richard (Team Member)