title: Nontraumatic cervical disc herniation in a 21-year-old patient with no other underlying disease.
abstract: A 21-year-old woman presented with cervical myelopathy due to nontraumatic cervical disc herniation associated with cervical canal stenosis. The patient underwent removal of the herniated disc and anterior fusion with an autogenous iliac crest bone graft. After surgery, the patient showed satisfactory improvement. Cases of cervical disc herniation in our center and reported cases without cervical trauma in either young adults or in childhood were reviewed retrospectively. We discuss the pathogenesis of cervical disc herniation in our young patient in the context of these other cases. Cervical disc herniation rarely occurs before the age of 30 years. A history of cervical trauma and preexisting fusion of the cervical spine are risk factors for cervical disc herniation. The present case is the youngest known of nontraumatic disc herniation without other underlying disease. Hypermobility due to neck cracking and a relatively narrow spinal canal might have been important in causing cervical myelopathy by disc herniation.
authors.affiliation: Spinal Disorders Center, Fujieda Heisei Memorial Hospital, Fujieda, Shizuoka, Japan. rocky@kuhp.kyoto-u.ac.jp
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Ikeda
authors.forename: Junya
authors.initials: J
authors.lastname: Hanakita
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Takahashi
authors.forename: Keita
authors.initials: K
authors.lastname: Kuraishi
authors.forename: Mizuki
authors.initials: M
authors.lastname: Watanabe
mesh_terms: D000328:Adult; D017668:Age of Onset; D000368:Aged; D000369:Aged, 80 and over; D016025:Bone Transplantation; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D017586:Diskectomy / Q000706:statistics & numerical data; D005260:Female; D006184:Habits; D006801:Humans; D006987:Hypesthesia / Q000209:etiology; D055959:Intervertebral Disc Degeneration / Q000000981:diagnostic imaging / Q000209:etiology; D007405:Intervertebral Disc Displacement / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D007593:Joint Instability / Q000150:complications; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D016059:Range of Motion, Articular; D012307:Risk Factors; D013117:Spinal Cord Compression / Q000209:etiology*; D013123:Spinal Fusion; D013130:Spinal Stenosis / Q000150:complications* / Q000000981:diagnostic imaging / Q000503:physiopathology; D014057:Tomography, X-Ray Computed; D055815:Young Adult