Flexion-distraction therapy is a form of mechanical assisted joint mobilization that is used to decompress the spinal joints by applying a gentle stretch, or traction, to the lower spine. It is usually applied in a series of repetitive slow movements without dynamic thrusts. The procedure is commonly administered to patients with disc derangements, lumbar stenosis and facet syndrome, and may also be used in other ways, such as to gently mobilize joints.