thoraco lumbar spondylosislumbar spondylosis pathophysiologymultilevel lumbar spondylosislumbar spondylosis and sciaticaadvanced lumbar spondylosislumbar spondylosis and scoliosiscervical and lumbar spondylosislumbar spondylosis with myelopathylumbar spondylosis diagnosissevere lumbar spondylosismoderate lumbar spondylosisdiffuse lumbar spondylosis