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Imaging of developmental dysplasia of the hip
1Department of Radiology, Northwestern University Medical School, Children's Memorial Medical Center, Chicago, Illinois, USA.
Insights
Clinical examination is key for diagnosing hip dysplasia in newborns. Targeted ultrasound screening for high-risk infants at 4-6 weeks improves diagnosis and is cost-effective.
Area of Science:
- Pediatric Orthopedics
- Diagnostic Imaging
Background:
- Developmental dysplasia of the hip (DDH) requires timely diagnosis for effective management.
- Clinical examination is the cornerstone of initial DDH assessment in newborns.
Purpose of the Study:
- To outline the diagnostic approaches for developmental dysplasia of the hip.
- To emphasize the role of imaging modalities in DDH detection and management.
Main Methods:
- Clinical examination of infants for hip instability.
- Ultrasound screening of high-risk infants at 4-6 weeks of age.
- Radiography and advanced imaging (CT, MRI) for specific cases.
Main Results:
- Clinical examination is the primary diagnostic tool for newborn DDH.
- Supplemental ultrasound screening in high-risk infants increases DDH diagnosis cost-effectively.
- Radiography and advanced imaging are used for severe cases and treatment planning.
Conclusions:
- A combination of clinical assessment and targeted imaging is crucial for optimal DDH diagnosis and management.
- Ultrasound is a valuable tool for detecting clinically silent DDH and monitoring treatment.
- Advanced imaging aids in surgical planning for complex hip dysplasia cases.
Abstract:
Careful clinical examination remains the primary and most important way of diagnosing developmental dysplasia of the hip (DDH) in newborn infants. Repeated examinations during the first year are important to diagnose DDH subsequent to the newborn period. Sonography can detect cases of clinically silent DDH. Targeting high-risk infants for supplemental ultrasound screening at 4 to 6 weeks of age increases diagnosis of DDH and at significantly less expense than widespread screening. When sonography is not available, a pelvis radiograph at 3 months should be obtained in high-risk infants. Sonography also is used to monitor hip position and acetabular development in children undergoing harness treatment. Computed tomography and magnetic resonance imaging are reserved for children with more severe dysplasia, often as preoperative studies to help orthopedic surgeons to select the appropriate procedure.