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Ultrasound screening for congenital dysplasia of the hip in newborns: its value
1Department of Orthopaedics, Leyenburg Municipal Hospital of the Hague, The Netherlands.
Insights
Ultrasound screening for congenital hip dysplasia (CDH) in newborns detected abnormalities in 13.4% of hips, even with normal clinical exams. Most cases resolved spontaneously, but ultrasound aids early detection and monitoring.
Area of Science:
- Neonatal screening
- Pediatric orthopedics
- Diagnostic imaging
Background:
- Congenital dysplasia of the hip (CDH) is a common condition requiring early detection.
- Clinical examination alone may miss subtle cases of CDH.
- Ultrasound is a non-invasive imaging modality for assessing infant hips.
Purpose of the Study:
- To determine the prevalence of sonographic abnormalities in newborns.
- To evaluate the utility of ultrasound in detecting CDH missed by clinical examination.
- To assess the natural history of sonographic abnormalities in infant hips.
Main Methods:
- Clinical examination and ultrasound screening of 307 newborns.
- Follow-up assessment of hips with sonographic abnormalities.
- Observation of dislocation-reduction maneuvers in clinically unstable hips.
Main Results:
- Eighty-two hips (13.4%) showed ultrasound abnormalities with normal clinical findings.
- Three hips progressed to definite hip dysplasia.
- Seventy-nine hips normalized spontaneously within 12 weeks.
- Ultrasound visualized and recorded dislocation-reduction maneuvers in three clinically dislocatable hips.
Conclusions:
- Ultrasound screening identifies a significant number of hip abnormalities not detected clinically.
- Most transient sonographic abnormalities resolve spontaneously.
- Ultrasound is a valuable tool for monitoring infant hip development and detecting CDH.
- Ultrasound aids in the assessment of hip stability and dynamic instability.
Abstract:
Three hundred seven newborns were examined clinically and by ultrasound for congenital dysplasia of the hip (CDH). The purpose of the study was to determine the prevalence of sonographic abnormalities and to discover if sonography could be helpful in detecting cases of CDH that would be missed by clinical diagnosis alone. Eighty-two hips (13.4%) had ultrasound abnormalities despite a normal clinical examination. Of these, three developed definite hip dysplasia. The remaining 79 hips became clinically and sonographically normal within 12 weeks. Ultrasound visualized and recorded the dislocation-reposition maneuver of three other hips that were clinically dislocatable at birth. Dislocation occurred in a craniodorsal direction.