What is the main differential between OPLL and posterior osteophytes ?
Check the base, it is broad in posterior osteophytes and not contiguous in opposite to OPLL.
MRI shows thickening and ossification of the posterior longitudinal ligament from about C3 through C7. Spinal stenosis is noted with demonstration of ventral cord indentation at C3 to C7.Hypertrophied posterior neural arch element indents the posterior subarachnoid space.