Twenty years experience of selective secondary ultrasound screening for congenital dislocation of the hip.

OBJECTIVES: The authors report the results of a selective ultrasound screening programme for congenital dislocation of the hip (CDH) over a period of 20 years, with the aim of defining the rate of screening, conservative treatment and late presentation requiring surgery. METHODS: All neonates born from June 1988 to December 2008 (inclusive) were included in the prospective cohort, with a minimum follow-up of 12 months. All underwent an early clinical examination of the hips and those with clinical instability were referred for ultrasound at 2 weeks; those with risk factors were sonographically examined at 6 weeks. Risk factors were defined as breech presentation, family history or foot deformity. RESULTS: 107 440 live births were clinically examined, 20 344 (18.9%) were referred for ultrasound assessment at either 2 weeks (due to clinical signs) or 6 weeks (due to risk factors). 774 (3.8%) were diagnosed with dysplasia with a crude overall treatment rate of 7.2 per 1000 live births. 37 (0.34 per 1000) presented late, that is, after 12 weeks of age; none had detectable clinical signs or risk factors. There were no false negatives. CONCLUSION: Elective screening for developmental dysplasia of the hip in association with one stop treatment and monitoring is an effective programme. The number of infants referred increased statistically significantly year on year over the study period and generated more activity. Pavlik harness treatment rates remained acceptable and steady over the period, despite the increase in referrals. The incidence of late presenting cases ranged from 0 to 4 per year, with no secular trend and there were no ultrasound false negatives.

The incidence of fractures in children under the age of 24 months--in relation to non-accidental injury.

INTRODUCTION: Fractures in children are the second most common presentation of child abuse. In younger children, especially in those less than 18 months, fractures should be considered suspicious of a non-accidental injury (NAI). Risk factors associated for abuse are: age younger than 12 months, non-ambulatory status, delayed presentation, unknown or inconsistent history of mechanism of injury, and presence of any other injuries. Our objective was to identify the incidence of fractures in children below the age of 24 months who presented to our institution's Emergency Department (ED), and identify which cases should arouse suspicion around possible NAI. METHODS: A 2 year retrospective analysis was carried out of our ED and hospital notes from 2007 to 2008, of all children under the age of 24 months who presented with a fracture of any description to the ED. The study looked at the patients age (months) and gender, the site and type of fracture, whether the patient was hospitalised or discharged from the ED, if any concern was reported or a child protection referral was made, and also the area of the city the child was from. RESULTS: In 2007-2008 there was an incidence of 53 fractures per 10,000 children less than 2 years. The proportion increased with age with femur and skull fractures found in the youngest age category being associated with a referral to the child protection services. An unclear history regarding mechanism of injury was also noted in a high proportion of referrals. In 34% of patients the time interval was not recorded, a crucial risk factor in NAI. CONCLUSION: Age is a strong determinant when accessing NAI and a non-ambulant child presenting with a femur or skull fracture should be regarded highly suspicious of NAI. The time interval between the injury and presentation to the ED must be recorded in all notes when assessing a child for NAI.