I have a couple of fingers (same as my grandfather) that are curling. The disease is called Dupuytren's contracture and for me makes it difficult to type, shake hands, and more importanlty just put my hand in my pocket. I have had this problem for years and didn't know what it was. Surgery which of course is expensive dosen't always fix it on a permanent basis so I doubt this proceedure would either....but does appear as an decent option If I can find a local Doctor to perform it.
On my other hand, I have 2 partially knumb fingers that according to some are from spurs in my neckbones, or nerve damage in my shoulder, or nerve damage in the Ulna Nerve...one thing at a time!