Related Experiment Video
Updated: Jan 11, 2026
State of the Art Cranial Ultrasound Imaging in Neonates
Published on: February 2, 2015
Analysis of Ultrasound Screening for Developmental Dysplasia of the Hip in 6189 Infants Aged 0-6 Months
Shan-Shan Chen1, Xin-Hong Han2, Fang-Wen Gu1
1Department of Ultrasound in Medicine, Shangyu Second People's Hospital, Shaoxing, Zhejiang, China.
Insights
This study analyzed 6189 infants and found a 3.2% detection rate for developmental dysplasia of the hip (DDH). Early intervention for DDH is highly successful, with identified risk factors including female sex and breech delivery.
Area of Science:
- Pediatric Orthopedics
- Medical Imaging
- Epidemiology
Background:
- Developmental dysplasia of the hip (DDH) is a common condition requiring early diagnosis and intervention.
- Ultrasound is a key imaging modality for DDH assessment in infants.
- Understanding epidemiological factors and intervention efficacy is crucial for clinical management.
Purpose of the Study:
- To analyze ultrasound findings in infants aged 0-6 months.
- To investigate the epidemiology of DDH.
- To determine the efficacy of early intervention and associated risk factors for DDH.
Main Methods:
- Retrospective analysis of 6189 infants undergoing hip ultrasound.
- Outcomes included DDH detection rate, Graf classification, and intervention success.
- Logistic regression identified influencing factors for DDH.
Main Results:
- DDH detection rate was 3.2%, predominantly left-sided and Graf Type IIa/b.
- Early intervention success rate reached 98.95%.
- Risk factors included female sex, breech delivery, family history, swaddling, and gluteal fold asymmetry; first-born and vaginal delivery were protective.
Conclusions:
- This study characterizes the clinical profile of DDH in infants.
- Early intervention for DDH demonstrates high success rates.
- Identified risk factors support risk-stratified screening for DDH.
Purpose:
To analyze ultrasound findings and investigate the epidemiology, intervention efficacy, and associated factors of developmental dysplasia of the hip (DDH) in infants aged 0-6 months.
Methods:
This retrospective study analyzed 6189 infants (3360 males, 54.3%) who underwent initial routine hip ultrasound at Shaoxing Maternal and Child Health Hospital (April 2022 to June 2024). Outcomes included DDH detection rate, Graf classification, laterality, and early intervention success rate (conversion to Graf Type I). Descriptive statistics summarized outcomes including detection rates, distributions, and intervention success rates while univariate and multivariate logistic regression identified influencing factors.
Results:
The DDH detection rate was 3.2% (196/6189), primarily left-sided (64.73%), and Graf Type IIa/b (90.82%). The early intervention success rate was 98.95% (189/191). Female sex (aOR = 19.76, 95% CI: 11.91-32.81), breech delivery (aOR = 3.97, 95% CI: 2.47-6.39), family history (aOR = 1.54, 95% CI: 1.01-2.33), swaddling history (aOR = 2.44, 95% CI: 1.58-3.76), and gluteal fold asymmetry (aOR = 2.67, 95% CI: 1.86-3.84) were risk factors (all p < 0.05). First-born (aOR = 0.29, 95% CI: 0.20-0.42) and vaginal delivery (aOR = 0.25, 95% CI: 0.18-0.35) were protective.
Conclusion:
This single-center study delineates the clinical profile of DDH, demonstrates a remarkably high success rate of early intervention, and identifies its independent influencing factors, providing evidence for risk-stratified screening while noting limited generalizability.
