Longitudinal LigamentsOssification of Posterior Longitudinal LigamentLigamentsOssification, HeterotopicCervical VertebraeLigamentum FlavumHyperostosis, Diffuse Idiopathic SkeletalSpinal Cord CompressionLigaments, ArticularDecompression, SurgicalLaminectomySpinal Cord DiseasesSpondylosisSpinal StenosisSpinal DiseasesIntervertebral DiscSpinal OsteophytosisJointsPeriodontal LigamentSpinal FusionSpineQuadriplegiaThoracic VertebraeKnee JointPosterior Cruciate LigamentIntervertebral Disc DisplacementLumbar VertebraeRadiculopathyTomography, X-Ray ComputedPatellar LigamentAnterior Cruciate Ligament ReconstructionMagnetic Resonance ImagingJoint InstabilityJoint DiseasesTreatment OutcomeBroad Ligament