This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thoracic and Lumbosacral Spine Injuries, Subject name: Orthopaedics
[{'content': 'Condition in which there is anterior or posterior displacement of a vertebra in relation to the vertebrae below: \nSelect and explain. \nA. Spondylosis, B. Spondylitis, C. Spondylolisthesis, D. Spondylolysis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) SpondylolisthesisRef: Maheshwari 5th ed. / 283-284SpondylosisDegenerative osteoarthritis of the joints between the center of the spinal vertebrae and/ or neural foraminaSpondylitisSpondylitis is an inflammation of the vertebra.It is a form of spondylopathy. In many cases spondylitis involves one or more vertebral joints as well, which itself is called spondylar- thritisSpondylolis- thesisSpondylolisthesis is the anterior or posterior displacement of a vertebra or the vertebral column in relation to the vertebrae belowSpondylolysisDefect of a vertebra. More specifically it is de- fined as a defect in the pars interarticularis of the vertebral arch', 'role': 'assistant'}]