My dad termed the spinal column pelvic meningeal unit as a singular synchronous functional unit. Meaning, we should study the x-ray as an intact system. In his words, he felt like it was one of the most important physiological systems of the body. So it is different because we are looking at the whole in positions of stress, being the standing position and seated position. And that is very different than just looking at a part. And in most cases when people are studying just the part, they are studying a non-stress-load position. Meaning, they are studying standing or lying down. And if someone is injured in a seated position, that injury would be completely missed by that current medical model. Call 562-420-8884 chiroman.com