what is a degenerative disc
Degenerative disc disease (DDD) is characterized by the ongoing deterioration of the intervertebral discs of the spine. These cushioning discs are composed of a gelatinous core (called the nucleus pulposus) and exterior cartilage shell (called the annulus fibrosus).horacic spinal deterioration refers to degenerative disc disease that affects the middle of the back between the shoulders and the small of the back. Degeneration in this section of the spine is relatively uncommon.