Objective To summarizethe status of screening of developmental dysplasia of the hip ( DDH ) in infants and young children 0 - 36 months of age and to generate a standardized process for DDH screening in infants and young children.Methods Preliminary DDH screening was carried out by obstetricians for newborns, and by pediatricians for infants and young children 0 - 36 months inpatients in ward, and by pediatric surgeon for infants and young children 0 - 36 months of age outpatient. Secondary screening was performed by pediatric orthopedic surgeons. In addition, ultrasound or radiograph examination of bilateral hip joints was performed. Suspected cases were followed up regularly until patients were diagnosed with DDH or excluded.Results From January 2012 to December 2014, 22 396 infants and young children were screened at the First Afifliated Hospital of Zhengzhou University, Zhengzhou, China. Ultrasound examination was performed for 2669 patients, 591 of whom ( 775 hips ) with suspected and abnormal ifndings were transferred to the Department of Pediatric Orthopedics. Among the referrals, a positive Ortolani or Barlow test was observed in 61 patients ( 89 hips ). Anteroposterior hip radiography showed acetabular dysplasia in 94 cases ( 131 hips ). Finally, 76 patients ( 121 hips ) were diagnosed with DDH. Among them, 21 ( 29 hips ) were males and 55 ( 92 hips ) were females. The left side was involved in 91 hips, and the right side was involved in 30 hips. Thirteen cases ( including 3 newborns ) were 1 - 6 months old ( 1.95‰, 13 / 6676 ), 49 cases were 7 - 18 months old ( 7.09‰, 49 / 6909 ), and 14 cases were 19 - 36 months old ( 1.59‰, 14 / 8811 ). Among the 76 cases of DDH, 49 ( 64.47% ) were 7 - 18 months old. The incidence of hip dysplasia was 3.39‰ ( 76 / 22 396 ).Conclusions During the present study, we screened infants and young children 0 - 36 months old for early detection and diagnosis of DDH and generated a standardized screening process based on the actual status of patients in our district.

Bilateral hip dislocation rarely occurs.In this paper, a case of bilateral hip dislocation associated with bilateral sciatic nerve palsy resulted from a road traffic acci-dent is reported.Both hips were emergently reduced under general anaesthesia.Acetabular reconstruction was done bilaterally due to the unstable hips.The patient subsequently developed heterotopic ossification and avascular necrosis on the left hip and underwent total hip arthroplasty.The sciatic nerve on the right side achieved complete recovery but that on the left side only partly recovered and was aug-mented by tendon transfer.Such injuries are serious and one should be aware of the complications because they can resurface and so patients should be followed up for a long time.To the best of our knowledge, this kind of injury has not been reported in the English .language literature.