ABSTRACT
Dynamic stabilization for the treatment of chronic low back pain is a relatively new concept. Presence of facet degeneration is not a contraindication to posterior dynamic stabilization. Long-term clinical results following posterior dynamic stabilization are only available for the Graf ligament. Fusion has been the mainstay of treatment via stabilization of a painful lumbar motion segment. In the absence of any indication for decompression, dynamic stabilization through a minimally invasive paraspinal approach is the method of choice. The pedicle screws are inserted by percutaneous technique using fluoroscopy, over guide pins and progressive dilators. Because of the lumbar lordosis, the trajectories of the pedicle screws of the same side converge to a small area on the surface of the skin. The postoperative morbidity is minimal and the patients can usually ambulate unsupported within a couple of hours after surgery and usually is discharged home the same day.
