My 8 year old had acm 1 surgery on 7/20/00. He is doing great.He was suffering from headaches every nite and the surgent had informed my husband and I, in time this will demage his spine, That is why we decided the surgery needed to be done. Its not even a month later and he is no longer suffering from headaches. Good luck with your child. If you have anymore question, please e-mail me.