Ligamentum FlavumSpinal Cord CompressionOssification, HeterotopicLaminectomySpinal NeoplasmsSpinal CordThoracic VertebraeCervical VertebraeSpinal Cord NeoplasmsOssification of Posterior Longitudinal LigamentSpinal Cord InjuriesSpinal DiseasesEpidural SpaceDecompression, SurgicalLigamentsLongitudinal LigamentsSpinal StenosisSpinal Cord DiseasesSpinal CanalMyelographyEpidural NeoplasmsLumbar VertebraeRadiculopathyParaplegiaMagnetic Resonance ImagingHematopoiesis, ExtramedullaryBrevibacteriumIntervertebral DiscHematomaScheuermann DiseaseBrevibacterium flavumElastic TissueLumbosacral RegionHematoma, Epidural, SpinalCystsHyperostosisParaparesisThalictrumRheumatic NoduleAnesthesia, EpiduralOsteochondromaTomography, X-Ray ComputedBalloon EmbolectomyOdontoid ProcessTreatment OutcomeBone Neoplasms