Fig. 5.

A 58-year-old man presented with motor weakness in both upper extremities 12 months ago. A : Pre-operative cervical MRI reveales severe spinal cord compression at C4, 5, 6, 7 levels with high signal change on T2-weighted imaging. B : Pre-operative cervical CT shows continuous and hill-shaped OPLL in C4, 5 levels with 44% (4.4/10.1 mm) of SAC. C : Laminoplasty C3, 4, 5, 6, 7, corpectomy C5, anterior cervical interbody fusion C4-6, and anterior cervical plate fixation C4-6 are done. D : Postoperative cervical CT shows increased SAC from 44% to 100%.