This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Orthopaedics
[{'content': "Waddling gait (Sailor's gait) is seen in \nSelect and explain. \nA. Bilateral CTEV (Congenital Talipes Equino Varus), B. Bilateral CDH (Congenital Dislocation of Hip), C. Congenital genu recurvation, D. Bilateral calcaneo-valgus deformity", 'role': 'user'}, {'content': 'Answer: B \nExplanation: (B) Bilateral CDH (Congenital Dislocation of Hip) # Myopathic gait (or Waddling gait) is a form of gait abnormality.> The "waddling" is due to the weakness of the proximal muscles of the pelvic girdle.> The patient uses circumduction to compensate for gluteal weakness.> Conditions associated with a myopathic gait include pregnancy, congenital hip dysplasia, muscular dystrophies and spinal muscular atrophy, metaphyseal chondrodysplasia, diaphyseal dysplasia, limb girdle dystrophy.', 'role': 'assistant'}]