Adjacent Segment Disease (ASD)

Overview

This is a problem you can develop after spinal fusion. It happens when the vertebrae above and below the fusion become weak and damaged. We say they "degenerate." And as they degenerate, more vertebrae are at risk for harm.

Cause

ASD is caused by stress on your spinal joints. When you have fusion surgery, two or more vertebrae are locked together. Afterward, as you bend and twist, you put extra stress on the nearby joints. They begin to degenerate, placing stress on even more vertebrae. These may begin to degenerate, too. This pattern can cascade through your spine.

Symptoms

When you have ASD, your spinal nerves can be irritated and compressed. You can have pain, numbness, tingling, and other problems.

Treatment

To treat ASD, your doctor may recommend things like medications and physical therapy. You may need surgery, and possibly another fusion. Your doctor will create a care plan that's right for you.

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.