Lower back pain can be caused by a number of different dysfunctions; it could be a mobility problem with a lumbar joint and the associated disc – usually lumbar 3,4 or 5. It could also be a mobility problem with the pelvic and hip joints. These will need to be mobilized with chiropractic manipulation, but also the fascia connected to these areas needs to be manipulated back to its elastic state.
All lumbar joints as well as disc problems and pelvic dysfunction including the hip joints are in my opinion a result of tight and contracted fascia. Discs, by the way, are connected to fascia and can be treated with fascial manipulation.
Merely treating the fascial tissue next a vertebral joint with its disc can mobilize and normalize the movement of the vertebral joint and reduce the swelling of the disc.