title: [Etiology and diagnosis of chronic back pain].
abstract: Chronic low back pain is lumbar-sciatic pain of more than 3 months duration. It is necessary to classify back conditions into conditions with and without nerve root affection. In addition to herniated discs, spinal stenosis and intra- or extramedullary tumours, transdiscal ruptures may cause radicular symptoms and signs from a local inflammatory effect caused by the nucleus material affecting the epidural tissue. Low back pain without radicular affection accounts for 95% of all cases of chronic low back disability. Symptoms and signs, x-ray investigations, and laboratory data are dealt with in the structural and focal etiology of the pain. The relationship between psycho-social factors and low back pain is discussed.
authors: Ryggpoliklinikken, Ullevål sykehus, Oslo.
authors: H
authors: H
authors: Lie
mesh_terms: D000328:Adult; D000368:Aged; D001416:Back Pain / Q000145:classification / Q000175:diagnosis* / Q000209:etiology; D002908:Chronic Disease; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013122:Spinal Diseases / Q000145:classification / Q000175:diagnosis* / Q000209:etiology
vernacular_title: Etiologi og diagnostikk ved kroniske rygglidelser.