title: Ossification of the thoracic ligamentum flavum in an achondroplastic patient: a case report.
abstract: We report a case of spinal stenosis with ossification of the thoracic ligamentum flavum in a 53-year-old man with achondroplasia. Neurological signs indicated flaccid paralysis below L1, and the patient was unable to walk. Ossification of the ligamentum flavum was observed at T4/5 and T9 to T12, compressing the thecal sac. Laminectomy of T9 to L1 was performed. At one-year follow-up, the patient was able to walk with one elbow crutch.
authors.affiliation: Department of Orthopaedic Surgery, University of Toyama, Sugitani, Toyama, Japan. suzukayo@med.u-toyama.ac.jp
authors.forename: K
authors.initials: K
authors.lastname: Suzuki
authors.forename: M
authors.initials: M
authors.lastname: Kanamori
authors.forename: M
authors.initials: M
authors.lastname: Nobukiyo
mesh_terms: D000130:Achondroplasia / Q000150:complications* / Q000473:pathology; D006801:Humans; D017843:Ligamentum Flavum; D008297:Male; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D013130:Spinal Stenosis / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D013904:Thoracic Vertebrae