title: Ossification of the posterior longitudinal spinal ligament in association with anterior longitudinal ligament ankylosing hyperostosis: report of two cases.
mesh_terms: D000328:Adult; D006801:Humans; D004057:Hyperostosis, Diffuse Idiopathic Skeletal / Q000150:complications*; D008022:Ligaments; D008297:Male; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000150:complications* / Q000000981:diagnostic imaging; D013128:Spinal Osteophytosis / Q000150:complications*; D013131:Spine; D014057:Tomography, X-Ray Computed