Cockatiel wing injury
My 16 year old cockatiel injured his wing approximately a month ago when he got startled and flew while on top of his cage (his wings are clipped). The wing was bleeding but we were able to stop the bleeding and all seemed well until two weeks later when I misted him with water and the bleeding started up again (I don't know if the misting dislodged scabs that had formed). I rushed him to an emergency vet that night as I was having a hard time getting the bleeding to stop, and they bandaged the wing.
I followed up with an avian vet the next day who looked at the wing, re-bandaged it, gave him a long acting antibiotic injection and told us to return a week later. When we returned a week later the vet stated that all looked well, to leave the bandage off and he should be fine (just a note, he has a large area of scab along the edge of the wing that overlaps both the front and back edge of the wing).
There was something sticking out of his wing near the tip, that I asked whether or not it was bone and the avian vet told me that it was the shaft of a feather. Upon returning home that night, he was cleaning his wing and started bleeding again. I got the bleeding to stop and rebandaged the wing. I contacted the vet and he said he thought it was just a minor setback and to again take the bandage off. I did so a three days later and he seemed okay for two days, but the following day he had another drop of blood in his cage.
At this point I contacted another avian vet to make an appointment for a second opinion. The appointment was the following day and when this avian vet looked at him she said he had a pretty extensive injury that had an area of what she called "dry gangrene" (the scab on the wing edge). She said that she didn't know what sort of tissue was under the scab, if it was viable or not for healing. She said she could either try to prompt the scab off, or we could wait another week to see if it healed any further and then see how it looked underneath. She said this kind of injury would take quite some time to heal, if it would be able to heal at all, or he may need a partial wing amputation.
Also, I questioned her about the thing protruding from the bottom of the wing and she said it looked like bone to her, which if it was, she'd be able to cut off. She put cream on the wing and rebandaged it and told us to return a week later.
So now he has to go back this week to see where he is in the healing process and we will go from there. He's always been very healthy prior to this, and he's a very active little guy.
How common is a partial wing amputation in a case like this and how do these guys usually do with this kind of procedure? Also, his age being what it is, I don't know if that's a factor that I should consider in not having this done (although I don't really know what other alternative there would be).
Also, I'm wondering how the bone wound up breaking through the skin (it's right at the tip of the wing area) and what exactly is entailed with cutting it, such as, will he need stitches for something like that?
These are of course, all questions that I will be asking during his appointment this week, but I'd just like to get an additional opinion on this matter. I want him to be okay and to be able to have many more happy, healthy years with me.