LaminectomyCardiac Surgical ProceduresSpinal Cord CompressionDecompression, SurgicalPostoperative ComplicationsSpinal StenosisLumbar VertebraeBariatric SurgeryPerioperative CareLigamentum FlavumCervical VertebraeTreatment OutcomeThoracic VertebraeEpidural SpaceDura MaterArachnoiditisSpinal CanalPostoperative PeriodThoracic SurgerySpinal Cord DiseasesSpinal NeoplasmsPostoperative CareSpinal Cord NeoplasmsIntervertebral Disc DisplacementCauda EquinaSpinal FusionVascular Surgical ProceduresMyelographySpinal OsteophytosisProspective StudiesPreoperative CareNeurosurgical ProceduresLumbosacral RegionObesity, MorbidSpineRetrospective StudiesPreoperative PeriodCoronary Artery BypassSpinal DiseasesSurgical Procedures, ElectiveSpondylolisthesisCervical AtlasFailed Back Surgery SyndromeCardiopulmonary BypassHematoma, Epidural, SpinalSpinal Nerve RootsSacrumOssification of Posterior Longitudinal LigamentSurgical Procedures, OperativeAmbulatory Surgical ProceduresTime FactorsGeneral SurgeryDiskectomyMonitoring, IntraoperativeFollow-Up StudiesIntraoperative PeriodOssification, HeterotopicTorsion, MechanicalParaparesisThoracic Surgical ProceduresPain, PostoperativeRadiculopathyOrthognathic Surgical ProceduresInternal FixatorsTissue AdhesionsSyringomyeliaHeart ValvesParaplegiaLength of StayMagnetic Resonance ImagingKyphosisRisk FactorsRisk AssessmentOral Surgical ProceduresEpidural AbscessPolyradiculopathySciaticaBlood Loss, SurgicalIntraoperative ComplicationsSpinal Cord InjuriesSurgical Wound InfectionCadaverCardiovascular Surgical ProceduresSpinal CordSternumArachnoidBack PainSpondylosisLongitudinal LigamentsBlood TransfusionArachnoid CystsMeningoceleIntervertebral Disc DegenerationTabes DorsalisChi-Square DistributionForaminotomyPerioperative PeriodHospital MortalityFluid TherapyPremedication