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Incorporating risk factors in the development of the screening programme for developmental dysplasia of the hips

Si Heng Sharon Tan1, Keng Lin Wong, James Hoipo Hui

  • 1Department of Orthopaedic Surgery, Hand and Reconstructive Microsurgery Cluster, National University Health System (NUHS), Singapore, Singapore.

Journal of Pediatric Orthopedics. Part B
|November 22, 2018
PubMed

Insights

Female infants are at higher risk for developmental dysplasia of the hips (DDH). The presence of multiple risk factors improves DDH prediction, aiding early diagnosis and intervention.

Area of Science:

  • Pediatrics
  • Orthopedic Surgery
  • Diagnostic Imaging

Background:

  • Developmental dysplasia of the hips (DDH) is a common congenital disorder.
  • Early detection and intervention are crucial for optimal outcomes.
  • Identifying reliable risk factors for DDH is essential for targeted screening.

Purpose of the Study:

  • To evaluate the predictive value of isolated and combined risk factors for DDH in newborns.
  • To assess the diagnostic accuracy of multiple risk factors in identifying DDH.

Main Methods:

  • A 12-year prospective cohort study involving newborns with suspected DDH.
  • Hip ultrasound screening at six weeks of life for all enrolled infants.
  • Statistical analysis using likelihood ratios, sensitivity, and specificity to evaluate risk factors.

Main Results:

  • Female sex was identified as the sole isolated risk factor for DDH (LR: 1.26; 95% CI: 1.04-1.54).
  • The presence of two or more risk factors significantly predicted DDH (LR: 1.10; 95% CI: 1.00-1.20).
  • A combination of two or more risk factors demonstrated high sensitivity (93.6%) but low specificity (14.5%) for DDH prediction.

Conclusions:

  • While female sex is an independent risk factor, combining multiple risk factors enhances DDH prediction.
  • The findings support targeted ultrasound screening for newborns with multiple risk factors for DDH.
  • Further research may refine risk factor combinations for improved DDH diagnostic accuracy.

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