Spinal Cord DiseasesSpinal Cord CompressionCervical VertebraeSpinal OsteophytosisOssification of Posterior Longitudinal LigamentLaminectomyDecompression, SurgicalSpondylosisMyelographyCervical AtlasSpinal FusionRadiculopathySpinal StenosisParaparesis, Tropical SpasticAxisAtlanto-Axial JointSpinal CanalHyperostosis, Diffuse Idiopathic SkeletalOdontoid ProcessOrthopedicsDiskectomyTorticollisDura MaterReflex, AbnormalOsteochondromaSpinal CordMagnetic Resonance ImagingDislocationsIntervertebral Disc DisplacementTreatment OutcomeLigamentum FlavumNeckHTLV-I InfectionsOrthopedic ProceduresHuman T-lymphotropic virus 1Joint InstabilityRetrospective StudiesRecovery of FunctionMyelitisTomography, X-Ray ComputedSocieties, MedicalPostoperative ComplicationsFibromyalgiaOutcome Assessment (Health Care)Bone ScrewsJapanMyelitis, TransverseSeverity of Illness IndexOssification, HeterotopicFollow-Up StudiesArthritis, RheumatoidHTLV-I AntibodiesLongitudinal LigamentsGene Products, taxProspective StudiesThoracic VertebraeParaparesis, SpasticParaplegiaHealth Status IndicatorsQuality of LifeNeurologic ExaminationQuadriplegiaQuestionnairesEncephalitis, Varicella ZosterOccipital BoneProvirusesNeurosurgical ProceduresKyphosisParaparesisEpidural SpaceHyperostosisLeukemia-Lymphoma, Adult T-CellSpinal Cord Vascular DiseasesArteriovenous FistulaHTLV-II InfectionsLigamentsSpinal Cord NeoplasmsLordosisExophthalmosSkin Diseases, ViralElectrodiagnosisSynovial CystNervous System DiseasesEvoked Potentials, SomatosensoryCarrier StateSyringomyeliaGenes, pXSpinal Nerve RootsCentral Nervous System Vascular MalformationsSpinal NeoplasmsSpinal DiseasesGanglion CystsEpidural NeoplasmsSiderosisInfarctionHerniaDisease Models, AnimalInternal FixatorsThoracic DiseasesParesthesia