Hong Kong Med J 2012;18:407–11 | Number 5, October 2012
Frequency of developmental dysplasia of the hip in breech-presented Chinese neonates in Hong Kong
CH Yau, KY Choi, NS Kwong, PC Lau, MK Yuen, NC Kwok, YY Chow, Sylvia LY Siu, KW Li, Diana K Lam
Department of Orthopaedics and Traumatology, Tuen Mun Hospital, Tuen Mun, Hong Kong
OBJECTIVES. To clarify the use of ultrasonography by determining the frequency of developmental dysplasia of the hip among breech-presented Chinese neonates in Hong Kong.
DESIGN. Prospective case series.
SETTING. Regional hospital, Hong Kong.
PATIENTS. All breech-presented Chinese neonates born during January 2008 to June 2009 were included (except premature neonates). They were examined clinically from birth till the age of 1 year. Ultrasound of the hips was performed at the age of 2 weeks, and X-ray of the pelvis at the age of 1 year.
RESULTS. A total of 209 breech-presented neonates were born during the study period; 110 neonates completed all necessary investigations and follow-up. Among the latter, there were three neonates with developmental dysplasia of the hip warranting treatment, which amounted to a frequency of 2.7%.
CONCLUSION. Developmental dysplasia of the hip among breech-presented Chinese babies is only slightly less common than in corresponding populations in other regions in the world. Since early diagnosis is important, ultrasonography screening in high-risk cases such as those with breech presentation may be useful.
Key words: Breech presentation; Hip dislocation, congenital; Hong Kong; Incidence
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