Disc Osteophyte Complex Characteristics and Clinical Significance

Anatomical Definition and Clinical Significance

The disc osteophyte complex represents the combined effect of intervertebral disc degeneration and reactive bone formation at the vertebral margins, which can compress neural structures including the spinal cord, nerve roots, or thecal sac, leading to radiculopathy, myelopathy, or neurogenic claudication depending on location 1
The complex can cause cervical spondylotic myelopathy by compressing the spinal cord from the ventral aspect, and plays a key role in the injury mechanism of central cord syndrome, where hyperextension causes sudden compression of the spinal cord between the hypertrophic spondylotic disc-osteophyte complex anteriorly and the buckled ligamentum flavum posteriorly 1

On MRI, the disc osteophyte complex must be distinguished from inflammatory changes seen in axial spondyloarthritis, as both can show similar signal changes but have different underlying pathologies, and MRI findings should be interpreted with specific attention to identify associated morphologic findings such as disc degeneration or osteophytes that favor degenerative changes rather than inflammatory conditions 2, 3