This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'Patients with bilateral CDH walk with the following gait? \nSelect and explain. \nA. Waddling, B. Stumbling, C. Knock knee, D. Antalgic', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Waddling Waddling gait It is also called as duck walk gait. It is a wide base gait with increased lumbar lordosis, the patient sways to the same side after putting weight on the limb. It is seen commonly in pregnancy, bilateral CDH, osteomalacia and myopathies.", 'role': 'assistant'}]