Yesterday, Logan an I went down to Children's Hospital to have his x-rays and MRI read by a neurosurgeon. She told us that the x-rays where very unclear, but may show a very slight case of AAI, but their quality make them fairly useless. Now, for the good news, the MRI was very good. Those pictures showed no significant abnormalities. The doctor gave us the ok to go ahead and do hippotherapy! She does want to see him once a year for the next several years to repeat the x-ray, because she wants to see if their are any changes as he grows. Best case, he will be cleared to maybe even do somersaults in his gymnastics classes someday! I was very relieved to get the pictures read by a very knowledgeable doctor. I feel very confident now that we got the right results!
So, for now, we just need to continue avoiding letting him put pressure on his neck (like somersaults) because his low muscle tone in his neck gives him less stability.