Bony encroachment of the lumbar spine. A cause of low back surgery failure.
D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging*; D009408:Nerve Compression Syndromes / Q000000981:diagnostic imaging / Q000209:etiology; D011859:Radiography; D013122:Spinal Diseases / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery