ParaparesisParaparesis, SpasticParaparesis, Tropical SpasticSpinal Cord DiseasesSpinal Cord CompressionCervical VertebraeHuman T-lymphotropic virus 1Spinal OsteophytosisHTLV-I InfectionsLaminectomySpondylosisDecompression, SurgicalParaplegiaLigamentum FlavumMyelographyGene Products, taxHTLV-I AntibodiesOssification of Posterior Longitudinal LigamentMyelitisSpinal CordProvirusesThoracic VertebraeMyelitis, TransverseSpinal CanalMagnetic Resonance ImagingEpidural SpaceCarrier StateHematoma, Epidural, SpinalSpinal Cord IschemiaSkin Diseases, ViralLeukemia-Lymphoma, Adult T-CellOssification, HeterotopicSpastic Paraplegia, HereditarySpinal Cord NeoplasmsNeurologic ExaminationGenes, pXRadiculopathyDura MaterMuscle SpasticityParalysisSpinal FusionHTLV-II InfectionsSpinal Cord Vascular DiseasesTreatment OutcomeDeltaretrovirus AntibodiesDeltaretrovirus InfectionsReflex, BabinskiDiskectomyNeopterinJamaicaSpinal StenosisPolyradiculopathyViral LoadLipomatosisCervical AtlasDeltaretrovirus AntigensCentral Nervous System Vascular MalformationsNeurosurgical ProceduresSpinal DiseasesHuman T-lymphotropic virus 2MartiniqueSpinal NeoplasmsAtlanto-Axial JointAortic Aneurysm, ThoracicLongitudinal LigamentsParesisTomography, X-Ray ComputedTuberculosis, SpinalManihotBrachial Plexus NeuritisRetrospective StudiesLeukocytes, MononuclearAxisCerebrospinal FluidIntervertebral Disc DisplacementPostoperative ComplicationsFollow-Up StudiesCisterna MagnaQuadriplegiaHematoma, Subdural, SpinalEncephalitis, Varicella ZosterHTLV-I AntigensOdontoid ProcessOccipital BoneSeverity of Illness IndexSymptom AssessmentKyphosisReflex, AbnormalTuberculomaDNA, ViralHyperostosis, Diffuse Idiopathic SkeletalDepressionTime FactorsCauda EquinaEvoked Potentials, MotorArteriovenous FistulaElectrodiagnosisHyperostosisLigamentsExophthalmos