What is a Facet Joint and what is Articulation?
A Facet Joint is a posterior spinal joint that interfaces two adjacent upper and lower vertebrae together. Also known as a Zygapophyseal Joint, the Facet Joint provides for motion known as “Articulation” within defined ranges of motion. The articulation of a Facet Joint includes bending forward: flexion, bending backward: extension, and twisting: Cervical or Thoracolumbar rotation. The joint is stretched and unloaded during flexion and compressed or loaded upon extension. Facet Joints are also joint range limiters to prevent damage to spinal discs from excessive range of motion movements. What is a Synovial Joint? Facet joints are Synovial Joints- the most common joint in the human body. A Synovial Joint is characterized by having a joint capsule, joint capsule fluid-synovial fluid to lubricate the inside of the joint, and cartilage on the outside of the joint between the upper and lower adjacent surfaces of each vertebra to allow a smooth gliding movement. What is Facet Arthritis? Fac
