Intervertebral DiscLumbar VertebraeIntervertebral Disc DegenerationIntervertebral Disc DisplacementThoracic VertebraeSpineSpondylolysisCervical VertebraeSpinal DiseasesSacrumLumbosacral RegionBone DensitySpinal FusionBone and BonesSpinal FracturesFibrocartilageWeight-BearingSpondylolisthesisBiomechanical PhenomenaSpinal NeoplasmsCompressive StrengthSpinal CanalInternal FixatorsTomography, X-Ray ComputedBone ScrewsZygapophyseal JointFemurOsteoporosisRibsScoliosisX-Ray MicrotomographyPolymethyl MethacrylateMagnetic Resonance ImagingDiskectomyIliumLow Back PainNotochordDiscitisBone DevelopmentSpinal OsteophytosisIntervertebral Disc ChemolysisBone Diseases, MetabolicAggrecansCadaverOvariectomyLaminectomyKyphosisAbsorptiometry, PhotonBone ResorptionAlendronateRadiculopathyTibiaChymopapainSpinal InjuriesCollagen Type IIOsteoporosis, PostmenopausalImaging, Three-DimensionalBone RemodelingSpinal StenosisSpinal Cord CompressionTailOrthopedic Fixation DevicesSpinal CurvaturesDecompression, SurgicalBack PainLordosisBone Density Conservation AgentsFinite Element AnalysisMyelographySciaticaVertebroplastyOsteocalcinFractures, CompressionSpondylitisAlkaline PhosphataseLigamentsPolyradiculopathyTreatment OutcomeRange of Motion, ArticularEpidural SpaceStress, MechanicalMeatCervical AtlasProteoglycansTuberculosis, SpinalCollagen Type IXGlycosaminoglycansImage Processing, Computer-AssistedRats, Sprague-DawleyBody WeightRadiographyProstheses and ImplantsTime FactorsDog DiseasesSex CharacteristicsSpinal Nerve RootsDiskectomy, PercutaneousExtracellular MatrixChondrocytesProsthesis Implantation