It would really be better if he had ordered an MRI instead of X-rays. X-rays won't show the soft tissue, like the discs (which could be bulging or herniated) like the MRI will. X-rays only show bone.
I don't know why doctors order X-rays for stuff like this when they're going to end up having to order an MRI later anyway. Seems useless to me, but I'm no doctor.
Let us know what happens, will you? Best of luck. Hugs, Lee