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Selective treatment program for developmental dysplasia of the hip in an epidemiologic prospective study
J Poul1, J Bajerová, J Skotáková
1Pediatric Orthopaedic Department, Children's Hospital, Brno, Czech Republic.
Insights
Ultrasound screening effectively identifies developmental dysplasia of the hip in newborns. Early intervention based on ultrasound findings improves outcomes compared to clinical examination alone.
Area of Science:
- Pediatric Orthopedics
- Medical Imaging
- Neonatal Care
Background:
- Developmental dysplasia of the hip (DDH) is a common condition requiring early detection.
- Clinical examination has limitations in diagnosing DDH in newborns.
- Ultrasound (US) offers a non-invasive method for hip assessment.
Purpose of the Study:
- To evaluate the efficacy of ultrasound mass screening for DDH in newborns.
- To compare the diagnostic accuracy of ultrasound versus clinical examination.
- To determine the incidence of early and late treatment for DDH.
Main Methods:
- A 1-year prospective study screened 4,568 newborns at 3-4 weeks of age.
- Both clinical and ultrasonographic (static and dynamic) examinations were performed.
- Early treatment criteria included anatomical distortion and sonographic instability.
Main Results:
- Ultrasound identified 25 cases for early treatment (5.5/1,000) and 6 for late treatment (1.3/1,000).
- Clinical examination missed over half of sonographically abnormal cases.
- One case showed worsening hip formation and subluxation despite initially normal ultrasound findings.
Conclusions:
- Ultrasound mass screening is superior to clinical examination for detecting DDH in newborns.
- Early ultrasound-guided treatment is crucial for managing DDH.
- Continuous monitoring is necessary as hip abnormalities can develop postnatally.
Abstract:
Over 1 year of ultrasound (US) mass screening, 4,568 newborns were examined consecutively at age 3-4 weeks using both clinical and ultrasonographic examination methods. The US examination involved both the static and dynamic scanning. In total, 25 babies were treated early (5.5 per 1,000), and 6 babies were given late treatment for postnatally developing acetabular dysplasia (1.3 per 1,000). Early treatment was instituted only for hips remarkably distorted anatomically, as could be seen from their shape on the static scan, and for those that were sonographically unstable with an apparent stress displacement. Clinical examination at age 3-4 weeks failed in more than half of all sonographically abnormal cases. In one case, the postnatal development of the hip joint was associated with the worsening of its formation and a developing subluxation despite its primary normal characteristics.