Tommy', glad you got that answer from Jeebs, which is the same as what I would have said -- probably not, but I'm no expert -- and he actually did some work on your behalf, which I didn't. Hope it all goes well!!
My current belief on whether nerve block injections would have much likelihood of being a blocker on busting, is no, probably not a blocker. Full disclosure: I'm not exactly well researched on this topic.
It did come up previously in this thread that you may find pertinent enough to peruse: