Houston Methodist. Leading Medicine

Neck FAQ


I had my neck fused in two places six years ago. The most recent X-ray report says there is moderate degeneration at C4/5. What does this mean?


As a general guideline, degeneration of the cervical spine (neck) refers to three structures: the bones, the discs, and the joints. X-rays are usually used to make this diagnosis. First the doctor looks at the height of the disc space where the fusion took place. This measurement is compared to the height of discs that show no sign of degeneration.

If up to 25 percent of the disc height is lost, there's mild degeneration. A loss of up to half the disc height is considered moderate. Severe is shown by a loss of more than half the disc height.

A second measure of degeneration in the cervical spine is the presence of bone spurs called osteophytes. As the disc degenerates, the joints start to get pressed together. The joints start to get worn. The body responds by adding more bone around the joints. This can actually result in less movement at the joint.

The spine can get stuck in a position of too much flexion called kyphosis or too much extension called lordosis. The degree of these curves can also be graded as mild, moderate, or severe.

Jan Goffin, et al. Long-Term Follow-Up after Interbody Fusion of the Cervical Spine. In Journal of Spinal Disorders. April 2004. Vol. 17. No. 2. Pp. 79-85.

*Disclaimer:* The information contained herein is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments or treatments. The information should NOT be used in place of visit with your healthcare provider, nor should you disregard the advice of your health care provider because of any information you read in this topic.
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