<prompt> All of the following statements are true about development dysplasia DDH of the hip, EXCEPT:It is more common in femalesOligohydramnios is associated with a higher risk of DDHThe hourglass appearance of the capsule may prevent a successful closed reductionTwin pregnancy is a known risk factor  <response>: Twin pregnancy has not been mentioned as a risk factor for developmental dysplasia of hip. All other statements in relation to DDH are true. Ref: Tochdjians Paediatric Ohopaedics, 3rdd Edtion, Pages 514, 516, 520. 