Spinal CordSpinal Cord InjuriesInjectionsInjections, SpinalAnesthesia, SpinalSpinal NervesSpinal Cord DiseasesSpinal Nerve RootsSpinal DiseasesSpinal Cord NeoplasmsSpinal CanalSpinal Cord CompressionSpinal NeoplasmsSpinal FusionSpinal StenosisTreatment OutcomeInjections, IntravenousPostoperative ComplicationsInjections, IntramuscularTime FactorsBariatric SurgeryInjections, SubcutaneousInjections, Intra-ArticularInjections, IntralesionalSpinal InjuriesGeneral SurgeryMuscular Atrophy, SpinalRats, Sprague-DawleyRetrospective StudiesSpineSpinal Cord IschemiaGanglia, SpinalThoracic SurgeryInjections, IntraperitonealLaminectomyLumbar VertebraeThoracic VertebraeInjections, EpiduralCardiac Surgical ProceduresProspective StudiesMotor NeuronsPain MeasurementParaplegiaCervical VertebraeDisease Models, AnimalPostoperative PeriodTuberculosis, SpinalPainLumbosacral RegionInjections, IntraventricularSurgery, PlasticSpinal CurvaturesInjections, IntradermalFollow-Up StudiesAnesthetics, LocalPosterior Horn CellsHematoma, Epidural, SpinalRecovery of FunctionPreoperative CareSurgery, Computer-AssistedInjections, Intra-ArterialNeurosurgical ProceduresOrthopedic ProceduresHyperalgesiaCataract ExtractionPostoperative CareSurgical Procedures, OperativeDecompression, SurgicalMagnetic Resonance ImagingThoracic Surgery, Video-AssistedSpinal FracturesIntravitreal InjectionsIntraoperative ComplicationsPain, PostoperativeSpinal Muscular Atrophies of ChildhoodCoronary Artery BypassInjections, IntraocularDose-Response Relationship, DrugEpidural SpaceSurgery, OralTomography, X-Ray ComputedIntraoperative CareInjections, JetReoperationScoliosisRats, WistarSurgical Procedures, ElectiveSpinal Cord RegenerationMonitoring, IntraoperativeAmbulatory Surgical ProceduresQuadriplegiaLaparoscopyNeuronsSurgical Procedures, Minimally InvasiveCardiopulmonary BypassTrigeminal Nucleus, SpinalLocomotionMicroinjectionsNeuralgiaAnalgesics