Spinal Cord DiseasesSpinal Cord CompressionCervical VertebraeSpinal OsteophytosisOssification of Posterior Longitudinal LigamentLaminectomyDecompression, SurgicalSpondylosisMyelographyCervical AtlasSpinal FusionRadiculopathySpinal StenosisParaparesis, Tropical SpasticAxisAtlanto-Axial JointSpinal CanalHyperostosis, Diffuse Idiopathic SkeletalOdontoid ProcessOrthopedicsDiskectomyTorticollisDura MaterMagnetic Resonance ImagingReflex, AbnormalOsteochondromaSpinal CordDislocationsTreatment OutcomeRetrospective StudiesIntervertebral Disc DisplacementLigamentum FlavumNeckTomography, X-Ray ComputedHTLV-I InfectionsOrthopedic ProceduresHuman T-lymphotropic virus 1Joint InstabilityRecovery of FunctionMyelitisSocieties, MedicalPostoperative ComplicationsOutcome Assessment (Health Care)FibromyalgiaJapanSeverity of Illness IndexBone ScrewsFollow-Up StudiesMyelitis, TransverseOssification, HeterotopicProspective StudiesDelayed DiagnosisArthritis, RheumatoidHTLV-I AntibodiesPrenatal DiagnosisEarly DiagnosisLongitudinal LigamentsThoracic VertebraeSensitivity and SpecificityGene Products, taxQuestionnairesParaparesis, SpasticQuality of LifeHealth Status IndicatorsParaplegiaNeurologic ExaminationQuadriplegiaEncephalitis, Varicella ZosterOccipital BoneDiagnosisNeurosurgical ProceduresProvirusesParaparesisKyphosisEpidural SpaceSpinal Cord NeoplasmsArteriovenous FistulaElectrodiagnosisHyperostosisExophthalmosLeukemia-Lymphoma, Adult T-CellLigamentsSkin Diseases, ViralSpinal Cord Vascular DiseasesHTLV-II InfectionsSynovial CystLordosisCarrier StateEvoked Potentials, SomatosensorySpinal NeoplasmsNervous System DiseasesSpinal DiseasesSyringomyeliaDiagnostic ErrorsDog DiseasesSpinal Nerve RootsCentral Nervous System Vascular MalformationsFatal OutcomeThoracic DiseasesGanglion Cysts