The traction spur. An indicator of segmental instability.
D006801:Humans; D007403:Intervertebral Disc / Q000000981:diagnostic imaging / Q000503:physiopathology; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000503:physiopathology; D009069:Movement Disorders / Q000209:etiology* / Q000503:physiopathology; D011859:Radiography; D013122:Spinal Diseases / Q000150:complications* / Q000000981:diagnostic imaging / Q000503:physiopathology