Oh man that is brutal! A good friend had that had to get the same thing done on his pecs. I hope you heal fast brother!
I'm about to have to go under the knife myself. My bicep tendons on both arms have built up massive calcium deposits in them. I tried to get them to go away but unfortunately the therapy I tried did not work (shockwave therapy). I also looked into a lavage/barbotage but found those weren't options in my particular case.
Just waiting on getting my finances in order after Christmas to get this done.