Spinal Cord NeoplasmsLaminectomySpinal CordSpinal Cord DiseasesFracture Fixation, IntramedullaryEpendymomaParaparesisSpinal NeoplasmsNeurosurgical ProceduresAstrocytomaSpinal Cord InjuriesMyelographyMyelitisSex Cord-Gonadal Stromal TumorsAbscessMagnetic Resonance ImagingMicrosurgeryCervical VertebraeThoracic VertebraeTuberculomaBone NailsSyringomyeliaTreatment OutcomeSpinal CanalSpinal Cord Vascular DiseasesMeningiomaFemoral Fractures