Epidural SpaceEpidural NeoplasmsHematomaSpinal Cord CompressionPulsed Radiofrequency TreatmentQuipazineElectric Stimulation TherapyHematoma, Epidural, CranialHematoma, SubduralSpinal CordHematoma, Subdural, ChronicHematoma, Subdural, AcuteHematoma, Epidural, SpinalSpinal Cord InjuriesHematoma, Subdural, IntracranialHematoma, Subdural, SpinalCerebral HemorrhageInjections, SpinalTrephiningSpinal Cord DiseasesAnesthesia, SpinalSpinal NervesTomography, X-Ray ComputedSpinal DiseasesSpinal CanalSpinal Cord NeoplasmsSpinal Nerve RootsSpinal NeoplasmsCraniotomySpinal StenosisSpinal FusionLaminectomySubdural SpaceDura MaterSpinal InjuriesSkull FracturesMuscular Atrophy, SpinalMagnetic Resonance ImagingNeurosurgical ProceduresSpinal Cord IschemiaCerebral Hemorrhage, TraumaticGanglia, SpinalThoracic VertebraeParaplegiaCraniocerebral TraumaCervical VertebraeBasal Ganglia HemorrhageDecompression, SurgicalLumbar VertebraeSpineSubdural EffusionMotor NeuronsGlasgow Coma ScaleTreatment OutcomeRectus AbdominisTuberculosis, SpinalHead Injuries, ClosedLigamentum FlavumIntracranial HemorrhagesLumbosacral RegionMyelographySpinal CurvaturesCranial Fossa, PosteriorPosterior Horn CellsDrainageRemission, SpontaneousParaparesisQuadriplegiaPostoperative ComplicationsSpinal PunctureRetrospective StudiesArachnoid CystsSpinal Muscular Atrophies of ChildhoodSpinal FracturesRats, Sprague-DawleyTime FactorsRetroperitoneal Space