[Multidisciplinary practice guideline 'Invasive treatment of spine related low back pain'].

The practice guideline 'Invasive treatment of spine related low back pain' describes the state of the art regarding the diagnosis and value of invasive treatment after failure of conservative treatment in patients with pain symptoms of facet joint pain, pain in the sacroiliac joint, coccygodynia, discogenic pain and the 'failed back surgery syndrome'. There is no consensus on definitions and a classification system for chronic low back pain symptoms. The classification in specific and nonspecific low back pain provides insufficient insight and is unable to show which therapy is effective for which disorder. The guideline working group advises a new classification system for chronic low back pain in degenerative and non-degenerative disorders. After failure of conservative treatment, several specific invasive treatments are recommended; some of these treatments should only be performed in study related settings. Some of the treatments that are currently used in daily practice are inadvisable.