A. Typically when degenerative conditions that affect the facet joint are present, the intervertebral disc is usually affected as well. Facet arthritis and disc problems are typically seen together, although there is uncertainty as to whether the disc starts to degenerate first causing the facet joint to “wear-out,” or vice versa.
If the space between the motion segment vertebrae begins to collapse, it can also cause the vertebra to tilt to one side (scoliosis), or shift out of position (spondylolisthesis) causing the facet joint to sublux or partially dislocate – further injuring the joint capsule.
This degenerative cascade continues until spontaneous stabilization occurs and the joint naturally fuses together. This process usually occurs at multiple levels and multiple areas of the spine.
