A.H.
Ah it's so hard to have anything wrong with your baby. We had to see a neurosurgeon when my 2nd baby was 2 weeks old because they thought her spinal cord might have been tethered...she had dimples present in her sacrum at birth.
Anyway I don't have any direct experience with syndactyly but I do know that white male babies are affected more than any other demographic for some reason. He'll likely have a small skin graft during the surgery to help close the skin around the affected fingers, and he will probably be in a small cast for a little while. He'll probably be evaluated for awhile afterwards for some physical therapy to be able to use all of his fingers. Like you said the true blessing is that his bones aren't involved, and after all of this is over you'll probably never even know he was born with it. The good thing is that they will do the surgery when he's young enough not to remember it later on. This affects 1 in about 2500 babies, so doctors are experienced in these surgeries. Everything will be fine. :)