You broke it off...? It happens every once in a while if not too careful.

If it's a hearty strain, likely there will be a slow-down in bulking-up, but after a week or so, she should start packin' on the pounds again. Check often for nanners, as this much stress can trigger them. Avoid spraying anything in or on the wound till it's healed. (bacterial, viral, and yeast infections may occur)
-however-
If this is normally a stable strain, and she starts throwing-out nanners, that pollen will make female seeds only. Up to you whether you would want to pollinate with it or not, but I would. :thumbsup: