My son went to the ER because he had pain in his arm so the doctor tried to the nursemaids elbow reduction four times. the fourth time his elbow snapped. my son continue to not use his arm they order an x-ray and did not find anything wrong. he went home and did not use his arm for five days we went back to the ER to get reevaluated.the x ray said he had an radial head fracture, did the nursemaid elbow reduction cause the fracture?