ContusionsSpinal Cord InjuriesRecovery of FunctionSpinal CordParaplegiaQuadriplegiaSpinal Cord DiseasesCervical VertebraeSpinal Cord CompressionNerve RegenerationBrain InjuriesWounds and InjuriesAutonomic DysreflexiaUrinary Bladder, NeurogenicThoracic VertebraeParalysisRats, Sprague-DawleyLocomotionSpinal Cord NeoplasmsSpinal Cord RegenerationSpinal Cord IschemiaWheelchairsDisease Models, AnimalSpinal InjuriesInjections, SpinalElectric Stimulation TherapyAthletic InjuriesMotor NeuronsAxonsInjury Severity ScoreMyelitisLaminectomyMotor ActivityLung InjuryPressure UlcerMuscle SpasticityThoracic InjuriesTime FactorsHeart InjuriesWounds, NonpenetratingSpinal Nerve RootsNeuralgiaCordotomyChondroitin ABC LyasePyramidal TractsSpinal NervesElectromyographyHindlimbNeuroprotective AgentsForelimbNeuronsMyelin SheathTrauma Severity IndicesPainReperfusion InjuryLumbosacral RegionCerebral Hemorrhage, TraumaticSpasmReflexHyperalgesiaUrinary CatheterizationPosterior Horn CellsAnterior Horn Cells