Is this considered malpractice?

My son was taken to an ER after a wrestling injury. The doctor there took x-rays. We were told he had muscle spasms and that he could wear a soft collar if he felt like it helped. We were also given muscle relaxers for him. Based on that, he went to school (collarless) and was worked on by the high school trainer. By the second day the trainer was concerned at his level of pain and uncomfortable enough to ask a friend to review the x-rays. When they were looked at he was immediately pulled out of school and sent to a specialist. She diagnosed a broken vertebrae from the original x-ray. A CAT scan and MRI showed the spinal cord swelling and the damage to his disc as well as the shift in spinal column and collapse of the vertebrae. He is doing well after the neurosurgeon placed a plate, cadaver bone and four screws. He has some nerve damage but is slowly gaining strength and mobility. On the one hand we are so grateful that he is not paralyzed, on the other I am angry that he was in so much pain. As soon as he got to the specialist they put him in a hard collar to immobilize him. I know some of this is because he is my child...but the doctor that saw him first really does need to understand how dangerous this could have been.