Decompression, SurgicalDecompression SicknessPolyradiculopathyDecompressionSpinal StenosisLumbar VertebraeLaminectomySpinal CordNeckSpinal Cord InjuriesHead and Neck NeoplasmsSpinal Cord CompressionBack PainLow Back PainDivingNeck PainSpinal FusionBackSpinal Cord DiseasesCervical VertebraeSpinal DiseasesSpinal CanalNerve Compression SyndromesTrigeminal NeuralgiaMicrovascular Decompression SurgerySpinal NeoplasmsSpinal Nerve RootsInjections, SpinalArnold-Chiari MalformationThoracic VertebraeSpinal NervesSyringomyeliaSpinal Cord NeoplasmsDiskectomy, PercutaneousAnesthesia, SpinalTuberculosis, SpinalTreatment OutcomeHematoma, Epidural, SpinalSpondylosisEmbolism, AirIntervertebral Disc DisplacementSpinal InjuriesNeck InjuriesDiskectomyNoble GasesParaplegiaRadiculopathySpinal OsteophytosisLumbosacral RegionSacrumForamen MagnumPain MeasurementMagnetic Resonance ImagingSpineSpinal FracturesNeurosurgical ProceduresMicrosurgeryHyperbaric OxygenationOssification of Posterior Longitudinal LigamentMyelographyParaparesisExophthalmosFemoral Neck FracturesSpondylolisthesisLigamentum FlavumPostoperative ComplicationsGraves OphthalmopathyRetrospective StudiesBack InjuriesIntubation, GastrointestinalFemur Head NecrosisOrbitRecovery of FunctionDura MaterHemifacial SpasmInternal FixatorsMuscular Atrophy, SpinalEpidural AbscessFollow-Up StudiesTomography, X-Ray ComputedKyphosisSpinal Cord IschemiaAtmospheric PressureGanglia, SpinalPlatybasiaTime FactorsCompartment SyndromesPainCauda EquinaSurgical Procedures, Minimally InvasiveLongitudinal LigamentsEpidural SpaceCranial Fossa, PosteriorEndoscopyThoracic Outlet SyndromeMotor NeuronsHeliumBone ScrewsParamethasoneOrthopedic Procedures