Depends on the break...how far around the branch the break is. 1/4 1/2 3/4 ? I have reset a broken branch on a old satsuki that was 1/2 of the bark and it never even slowed down. Put it back in place as good as you can, wire or raffia the break after you use cut paste, the toothpaste kind, and hope for the best.

Good Luck

Tim