Longitudinal LigamentsOssification of Posterior Longitudinal LigamentSacrumLigamentsOssification, HeterotopicCervical VertebraeLigamentum FlavumHyperostosis, Diffuse Idiopathic SkeletalSpinal Cord CompressionLigaments, ArticularDecompression, SurgicalLaminectomySpinal Cord DiseasesSpondylosisSpinal StenosisSpinal FusionSpinal DiseasesSpinal OsteophytosisIntervertebral DiscPeriodontal LigamentSpineThoracic VertebraeLumbar VertebraeQuadriplegiaPosterior Cruciate LigamentIntervertebral Disc DisplacementTomography, X-Ray ComputedChordomaBoswelliaRadiculopathyPatellar LigamentMagnetic Resonance ImagingAnterior Cruciate Ligament ReconstructionSpinal NeoplasmsTreatment OutcomeBroad Ligament