Why do MRIs and X-rays not tell the whole story?

“MRIs and X-rays are moments in time, snapshots of the immobile joint. It tells us a lot about that joint in that single position but what it does not tell us is the finer details when you are actually moving the joint, which could be your source of pain. I like to utilize guided ultrasound to add in those finer details to see what is functionally going on in that joint to get to the root cause of the pain.” -Dr. Sam