SpondylitisDiscitisEpidural AbscessSpinal DiseasesBone Diseases, InfectiousTuberculosis, SpinalOsteomyelitisSpinal CordSpinal Cord InjuriesInjections, SpinalSpinal NervesSpinal Cord DiseasesAnesthesia, SpinalSpinal Nerve RootsSpinal Cord NeoplasmsSpinal CanalSpinal Cord CompressionSpinal NeoplasmsSpinal StenosisSpinal FusionSpinal InjuriesMuscular Atrophy, SpinalSpinal Cord IschemiaGanglia, SpinalMotor NeuronsParaplegiaSpineThoracic VertebraeLaminectomySpinal CurvaturesHematoma, Epidural, SpinalPosterior Horn CellsCervical VertebraeLumbosacral RegionLumbar VertebraeSpinal Muscular Atrophies of ChildhoodSpinal FracturesRats, Sprague-DawleySpinal Cord Regeneration