title: The Bryan cervical disc prosthesis as an alternative to arthrodesis in the treatment of cervical spondylosis: 46 consecutive cases.
abstract: We present data relating to the Bryan disc arthroplasty for the treatment of cervical spondylosis in 46 patients. Patients with either radiculopathy or myelopathy had a cervical discectomy followed by implantation of a cervical disc prosthesis. Patients were reviewed at six weeks, six months and one year and assessment included three outcome measures, a visual analogue scale (VAS), the short form 36 (SF-36) and the neck disability index (NDI). The results were categorised according to a modification of Odom's criteria. Radiological evaluation, by an independent radiologist, sought evidence of movement, stability and subsidence of the prosthesis.A highly significant difference was found for all three outcome measurements, comparing the pre-operative with the post-operative values: VAS (Z = 6.42, p < 0.0001), SF-36 (mental component) (Z = -5.02, p < 0.0001), SF-36 (physical component) (Z = -5.00, p < 0.0001) and NDI (Z = 7.03, p < 0.0001). The Bryan cervical disc prosthesis seems reliable and safe in the treatment of patients with cervical spondylosis.
authors.affiliation: The Victor Horsley Spinal Department, The National Hospital for Neurology and Neurosurgery & Institute of Neurology, Queen Square, London WC1N 3BG, UK.
authors.forename: J
authors.initials: J
authors.lastname: Lafuente
authors.forename: A T H
authors.initials: AT
authors.lastname: Casey
authors.forename: A
authors.initials: A
authors.lastname: Petzold
authors.forename: S
authors.initials: S
authors.lastname: Brew
mesh_terms: D000328:Adult; D002574:Cervical Vertebrae / Q000473:pathology / Q000601:surgery*; D017586:Diskectomy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007403:Intervertebral Disc / Q000473:pathology / Q000601:surgery*; D007595:Joint Prosthesis; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D019919:Prosthesis Implantation / Q000379:methods*; D011843:Radiculopathy / Q000209:etiology; D016059:Range of Motion, Articular; D012720:Severity of Illness Index; D013117:Spinal Cord Compression / Q000209:etiology; D013123:Spinal Fusion; D013128:Spinal Osteophytosis / Q000150:complications / Q000473:pathology / Q000601:surgery*