title: Postoperative arachnoidal diverticula of the lumbar spine.
abstract: Arachnoidal diverticula are a rare complication of spinal surgery and occur most often at lumbar level, especially after discectomy. We report a case of lumbar arachnoidal diverticulum that arose two years after an L4-L5 discectomy and presented clinically with low back pain and sciatic pain and neurological deficits. We analyze the etiopathogenesis, clinical and radiological features and treatment.
authors.affiliation: Department of Neurological Sciences, University of Rome La Sapienza, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Ferrante
authors.forename: L
authors.initials: L
authors.lastname: Mastronardi
authors.forename: M
authors.initials: M
authors.lastname: Acqui
authors.forename: A
authors.initials: A
authors.lastname: Fortuna
mesh_terms: D001099:Arachnoid; D005260:Female; D006547:Hernia / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D007403:Intervertebral Disc / Q000601:surgery; D007796:Laminectomy; D008161:Lumbosacral Region; D009682:Magnetic Resonance Spectroscopy; D008875:Middle Aged; D009192:Myelography; D011183:Postoperative Complications; D013122:Spinal Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology; D014057:Tomography, X-Ray Computed