The facets are the "bony knobs" that meet between each vertebra to form the facet joints that join your vertebrae together. There are two facet joints between each pair of vertebra, one on each side. Facet Syndrome generally results from bony changes, fibrosis of the joint capsule, or limited/excessive spinal mobility. Symptoms may include reduction in mobility of the spine, pain, and possible impingement of the associated nerve root.