You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Diagnosis based on the lumbar spine x-ray given below is and explain in detail?
Spondylolisthesis Spondylolisthesis - Forward slip of one veebra over the other. Most common at L5 - S1 level. When spondylolysis progresses to slip of veebral body, spondylolisthesis results X-ray lumbar spine Oblique view shows Scotty dog with a broken neck appearance. AP view shows Napolean hat sign Ref: Maheshwari 6e pg 284.