Spinal DiseasesSpinal NeoplasmsIntervertebral Disc DegenerationSpondylitis, AnkylosingSpinal CordLumbar VertebraeSpinal Cord InjuriesWounds and InjuriesBrain InjuriesAthletic InjuriesReperfusion InjuryInjections, SpinalSpinal NervesSpinal InjuriesSpinal Cord DiseasesAnesthesia, SpinalSpinal Nerve RootsSpinal CanalSpinal Cord NeoplasmsSpinal Cord CompressionInjury Severity ScoreLeg InjuriesLung InjurySpinal StenosisSpinal FusionEye InjuriesNeck InjuriesAcute Lung InjuryRats, Sprague-Dawley