degenerative facet arthropathyprominent facet arthropathymultilevel facet arthropathyhypertrophic facet arthropathyspondylosis and facet arthropathylumbosacral facet arthropathysevere facet arthropathyposterior facet arthropathyadvanced facet arthropathydiffuse facet arthropathyminimal facet arthropathymoderate facet arthropathy