Dr. Jessica Shellock, Spine surgeon at Texas Back Institute treats patients with many types of spinal conditions including Degenerative Disc Disease (DDD), also known as Spondylosis. Spondylosis is a condition that usually occurs due to aging. As the term implies, it is the progressive deterioration of the discs between the vertebral bodies. Spondylosis (a different term than spondylolisthesis) is typically a degenerative condition of the joints of the spine and is also known as spinal osteoarth