<prompt> A newborn boy was examined to exclude congenital dislocation of the hip CDH. Which of the following tests is relative to the management of CDH?In Ortolanis sign, abduction and lifting with the fingers produces a corresponding jerk when the dislocated femoral head slides back into the acetabulumThe diagnosis should be established between 2 and 4 years of age.Abduction of the flexed hip causes a click Ortolanis signAbduction of the hip is not limited.Apparent lengthening of the thigh with the hip and knee flexed may be seen.  <response>: It is important to recognize congenital dislocation of the newborn soon after birth. Delay in initiating appropriate treatment may lead to permanent hip joint disease. There may be apparent shortening of the thigh, although with the hip and knee flexed. 