Hematoma, SubduralSubdural SpaceHematoma, Subdural, ChronicHematomaHematoma, Subdural, AcuteEmpyema, SubduralSubdural EffusionHematoma, Epidural, CranialHematoma, Subdural, SpinalSpinal CordHematoma, Epidural, SpinalHematoma, Subdural, IntracranialSpinal Cord InjuriesCraniotomyDura MaterTomography, X-Ray ComputedCraniocerebral TraumaCerebral HemorrhageArachnoid CystsSpinal Cord DiseasesHead Injuries, ClosedAnesthesia, SpinalSpinal Cord CompressionInjections, SpinalNeurosurgical ProceduresTrephiningMagnetic Resonance ImagingArachnoidSpinal NervesIntracranial HypotensionBattered Child SyndromeDrainageSpinal DiseasesSpinal CanalSkull FracturesSpinal Cord NeoplasmsShaken Baby SyndromeGlasgow Coma ScaleSpinal Nerve RootsLaminectomyCranial Fossa, PosteriorSpinal NeoplasmsSpinal StenosisCerebral Hemorrhage, TraumaticDecompression, SurgicalSpinal FusionSubarachnoid SpaceRemission, SpontaneousIntracranial HemorrhagesElectrodes, ImplantedHeadachePneumocephalusTreatment OutcomeFatal OutcomeSpinal InjuriesPostoperative ComplicationsBrain AbscessLigamentum FlavumMeningesMuscular Atrophy, SpinalCervical VertebraeSpinal PunctureGlasgow Outcome ScalePost-Dural Puncture HeadacheCerebral AngiographyLumbar VertebraeLumbosacral RegionSubarachnoid HemorrhageMyelographyBrain InjuriesExtravasation of Diagnostic and Therapeutic MaterialsRetrospective StudiesSpinal Cord IschemiaBlood Patch, EpiduralTomography Scanners, X-Ray ComputedGanglia, SpinalThoracic VertebraeRetinal HemorrhageParaplegiaSuctionCerebral AqueductBasal Ganglia HemorrhageHydrocephalusRupture, SpontaneousNeurosurgerySkull NeoplasmsSkull Fracture, DepressedBirth InjuriesSpineChronic DiseaseMotor NeuronsBrainAcute DiseaseRectus AbdominisVentriculostomyTuberculosis, SpinalCerebrospinal Fluid ShuntsTime FactorsCranial Fossa, MiddleAccidents, Traffic