Try talking directly with a surgeon. Doctors can be hesitant about fairly invasive surgeries like that, but surgeons almost always want to cut.

It’s a vastly different situation but I had to do something similar for a carpal tunnel release. Doctors danced around the issue for years giving me braces, stretches, and work notes. But one call with an orthopedic surgeon and I was in for a consult within the week and surgery a couple months later.