(A) Lateral x-ray of the cervical spine of a 56-year-old male with Down syndrome and progressive myelopathy. (A) Lateral x-ray of the cervical spine of.

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(A) Lateral x-ray of the cervical spine of a 56-year-old male with Down syndrome and progressive myelopathy. (A) Lateral x-ray of the cervical spine of a 56-year-old male with Down syndrome and progressive myelopathy. (B) Sagittal magnetic resonance imaging demonstrates severe multilevel spinal cord compression with myelomalacia. (C) Sagittal computed tomography scan demonstrates C6-C7 spondylolishtesis with advanced degenerative changes and endplate erosions at C2-C3, C3-C4, C5-C6, and C6-C7. KRIS SIEMIONOW et al. Int J Spine Surg 2018;12:611-616 ©International Society for the Advancement of Spine Surgery Copyright © 2018 ISASS - This manuscript is generously published free of charge by ISASS, the International Society for the Advancement of Spine Surgery