Simply put, the hole in his spinal canal isn’t large enough for the size of his spinal cord. There is pressure on the spinal cord because of it.
To break this down for you, myelopathy is the medical term for any change in the spinal cord. It could be caused by a variety of different conditions. Congenital tells us that he’s had the stenosis or narrowing of the spinal canal since birth.
This condition is treatable. Antiinflammatories and physical therapy can help manage symptoms if it causes neck, shoulder, or arm pain. Changes in sensation and muscle weakness are signs that the condition is more serious. Surgery may be the next step to enlarge the opening and take the pressure off the cord.