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OVER 98% PASS RATE FOR THE NCS, PCS, OCS, AND GCS EXAMS › forums › PCS Advantage › Normal ER in infants › Reply To: Normal ER in infants

February 11, 2022 at 8:05 am #483903
Jessica Lewis
Participant

If you were to assess the full passive range of motion of a neonate’s hips, the external rotation would be 90 degree or greater. The resting posture of the hip within the joint is ~30 degrees of external rotation due to anteversion (60 degrees) being greater than antetorsion (30 degrees) at birth. The 100 degrees of external rotation is related to PROM of the hip joint and the 30 degrees of external rotation is related to the position of the head of the femur in the acetabulum.