Lumbar VertebraeThoracic VertebraeSpinal CordSpineSpondylolysisCervical VertebraeSpinal Cord InjuriesSpinal NeoplasmsBone DensitySpinal DiseasesSpinal FracturesSacrumBone and BonesSpinal FusionSpinal CanalLumbosacral RegionSpondylolisthesisRibsOsteoporosisFemurBone ScrewsTomography, X-Ray ComputedPolymethyl MethacrylateIntervertebral DiscInternal FixatorsBiomechanical PhenomenaWeight-BearingX-Ray MicrotomographyIliumZygapophyseal JointInjections, SpinalSpinal Cord CompressionBone DevelopmentSpinal NervesSpinal Cord DiseasesCompressive StrengthSpinal Cord NeoplasmsBone Diseases, MetabolicScoliosisSpinal Nerve RootsOvariectomyAnesthesia, SpinalAbsorptiometry, PhotonIntervertebral Disc DisplacementAlendronateMagnetic Resonance ImagingSpinal InjuriesTibiaBone ResorptionSpinal StenosisSpinal CurvaturesBone RemodelingOsteoporosis, PostmenopausalTuberculosis, SpinalVertebroplastyBone Density Conservation AgentsRats, Sprague-DawleyLaminectomyOsteocalcinKyphosisFractures, CompressionAlkaline PhosphataseCervical AtlasImaging, Three-DimensionalLow Back PainMeatMuscular Atrophy, SpinalBody WeightSpinal Cord IschemiaTreatment OutcomeTailSex CharacteristicsGanglia, SpinalTime FactorsParaplegiaMuscle, SkeletalImage Processing, Computer-AssistedOrthopedic Fixation DevicesBone MarrowMotor NeuronsCadaverDecompression, SurgicalBone CementsDinosaursBody CompositionKyphoplastyLordosisSpinal OsteophytosisHematoma, Epidural, SpinalPosterior Horn CellsEpidural SpaceOrthopedic ProceduresManipulation, SpinalBack PainSpinal Muscular Atrophies of ChildhoodSpina Bifida OccultaQuadriplegiaParaparesisSpondylitisPain