MP - the reason why it's not surgical is that they would have to go in there and find ways to join all those bits together which is really hard because the bone is shaped such that you can't use screws and it would be impossible to wrap it in wire to try to hold everything together, that would mess with the muscles too much and likely leave worse off.
The good news is that it will heal. You might always have small floaty bits but it will heal. You will likely have some long term loss of ROM, most likely reaching overhead and behind the back. But you'll be able to ride no problem.
Take care. I'm going to google some stuff tomorrow and if I learn anything else I'll let you know.
Living life like there's no tomorrow.
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2007 Look Dura Ace
2010 Custom Tonic cross with discs, SRAM
2012 Moots YBB 2 x 10 Shimano XTR
2014 Soma B-Side SS