OHHH! ((HHUUUGGSSS)) to you and your dd! I am so sorry you and she are going thru this.

Kids heal at lightning speed tho, your dd will be back in the gym & doing great, all in good time.

It will be hard to be patient during all of it, but she'll get thru it, and you can come to CB and share your woes w/ us!
My dd had the same fracture in 1st grade, 3 years before she ever started competing in gymnastics. So, I have no advice to offer as to when she'll get back into gym, but I can say my dd healed great, and went on to have a great 4 years in competitive gymnastics, including being L5 State Bar & Beam Champ! My dd's break involved surgery, pins, and then surgery again (!) 10 days later, as the Dr. was not satisfied w/ the way it was coming together. She had several months of physical therapy after the cast came off to get the arm back in shape. Today, if you look closely @ her arm, she also, (like many others who have stated here), cannot fully straighten it, and never will, but it is healed enough such that it has never hindered her in any way. Our Dr. also said it was the worst he'd seen in his 20 yrs of practice, and credited her healing to her young age (I think he was also very particular about her healing and gets big credit from me!). He said if it had happened to him or me at our more, 'advanced', age, we would have never had full use of the arm again.
All this to say, that if my dd could get thru all that, yours will too, and one day you will be giving advice to some other mom who's kid has had the same break!
Hang in there! It is quite a traumatic and shocking experience, I feel for you!!