Longitudinal LigamentsOssification of Posterior Longitudinal LigamentLigamentsOssification, HeterotopicCervical VertebraeLigamentum FlavumHyperostosis, Diffuse Idiopathic SkeletalSpinal Cord CompressionLigaments, ArticularDecompression, SurgicalLaminectomySpinal Cord DiseasesSpondylosisSpinal StenosisSpinal DiseasesIntervertebral DiscSpinal OsteophytosisPeriodontal LigamentSpinal FusionSpineQuadriplegiaThoracic VertebraeStress, MechanicalPosterior Cruciate LigamentIntervertebral Disc DisplacementLumbar VertebraeRadiculopathyTomography, X-Ray ComputedPatellar LigamentAnterior Cruciate Ligament ReconstructionMagnetic Resonance ImagingTreatment OutcomeBroad LigamentBiomechanical Phenomena