Spinal Cord CompressionSpinal Cord NeoplasmsSpinal NeoplasmsSpinal CordSpinal Cord InjuriesLaminectomyThoracic VertebraeEpidural NeoplasmsCervical VertebraeDecompression, SurgicalSpinal Cord DiseasesParaplegiaHematopoiesis, ExtramedullarySpinal DiseasesMyelographyScheuermann DiseaseEpidural SpaceSpinal CanalHematoma, Epidural, SpinalMagnetic Resonance ImagingHyperostosisParaparesisRheumatic NoduleOsteochondromaBalloon Embolectomy