This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Orthopaedics
Patients with bilateral CDH walk with the following git 
Select and explain. 
A. Waddling, B. Stubling, C. Knock knee, D. Antalgic
A: Waddling
Answer: A: Waddling 
Explanation: Waddling gaitIt is also called as duck walk gaitIt 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(Refer: Mohindra's Fundamentals of Ohopedics, 2nd edition, pg no. 120)