M.M.
My brother and my son where playing at the age of 3 and my brother grabbed my sons arm and we had thought that it was broken since my son would not move it so i took him to the ER and they did exrays and when they would move his arm to get the different exrays it poped back into place and there was no broken bones and the doctor said that he had seen this before and they do grow out of it he also said that its the ligaments that go over the elbo and if it did stay like that for a while it would cause pain and the ligaments could break. This happened about 5 more times and i would just act like i was the person that was taking the exrays on the kitchen table and it would always pop back into place. My son is almost 9 now and it has not happened again. I hope that helps