lumbar facet diseasefacet syndrome of lumbar spinelumbar facet degenerationlumbar facet spondylosislower lumbar facet hypertrophylower lumbar facet joint degenerationlumbar facet arthritislower lumbar facet arthrosislower lumbar facet arthropathylumbar facet joint diseasefacet arthritis of lumbar regionosteoarthropathy lumbar spine