Spinal Cord InjuriesQuadriplegiaParaplegiaCervical VertebraeRecovery of FunctionSpinal InjuriesSpinal CordThoracic VertebraeNeurologic ExaminationTrauma Severity IndicesWounds and InjuriesSpinal Cord DiseasesSpinal Cord CompressionTreatment OutcomeUrinary Bladder, NeurogenicAthletic InjuriesNerve RegenerationParalysisBrain InjuriesInjury Severity ScoreSpinal Cord RegenerationSpinal Cord NeoplasmsWheelchairsInjections, SpinalLocomotionSpinal Cord IschemiaRats, Sprague-DawleyAutonomic DysreflexiaMotor NeuronsPressure UlcerElectric Stimulation TherapyLaminectomySpinal NervesSpinal Nerve RootsContusionsSpinal FracturesReperfusion InjuryLongitudinal LigamentsAxonsDisease Models, Animal