ArticleFrontiers in pediatrics2022
Morphological Development of the Hip in Normal Infants Under Six Months of Age by the Graf Ultrasound Method.
Article in Frontiers in pediatrics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.
- Incidence of Neonatal Developmental Dysplasia of the Hip and Late Detection Rates Based on Screening Strategy: A Systematic Review and Meta-analysis.JAMA network open · 2022Pooled it
- Early-life nutritional status as a determinant of bone density and hip joint morphology in children.Frontiers in nutrition · 2026Article
- Early Screening for Developmental Dysplasia of the Hip: Sonographic Reference Values, Risk Factors, and Treatment Considerations.International journal of neonatal screening · 2025Article
- Predictors of treatment duration in conservative management of developmental dysplasia of hip -a retrospective cohort study.Archives of orthopaedic and trauma surgery · 2024Article
- Developmental dysplasia of the hip in infants younger than six months: Ultrasonographic assessment in relation with risk factors.International journal of health sciencesArticle
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objective: This large-sample observational study aims to analyze the morphological development of the hip joint in Chinese normal infants under 6 months of age by the Graf ultrasound method. Methods: The clinical and ultrasound data of infants who underwent early screening for developmental dysplasia of the hip (DDH) in the authors' clinic from January 2011 to December 2019 were analyzed retrospectively. The standard Graf method was used to measure the hip joint α angle, β angle and femoral head coverage (FHC). The infants with Graf type I or IIa hips were included in this study. All infants were grouped by age. FHC, α and β angles were compared among different study groups. Results: A total of 3,067 infants (6,134 hips) were included in the study. There were 1,164 males and 1,903 females with an average age of 77 days (1-180 days). The mean α angle was 62.4 ± 3.6° on the left and 63.2 ± 3.5° on the right ( Conclusions: The normal infant hip reveals progressive maturation during the first 3 months after birth, and then enters a plateau period during the 4 to 6
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