ReviewJournal of children's orthopaedics2020
Does the size of the femoral head correlate with the incidence of avascular necrosis of the proximal femoral epiphysis in children with developmental dysplasia of the hip treated by closed reduction?
Review in Journal of children's orthopaedics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 15 citations in OpenAlex.
- The prevalence of clinically significant proximal femoral growth disturbance following open versus closed reduction in dysplastic hips performed after 6 months: A systematic review and meta-analysis of 150 studies.Journal of children's orthopaedics · 2026Review
- Deep learning-based automatic measurement of the femoral head ossification center in healthy Korean children: development of a novel radiographic growth chart.European radiology · 2026Article
- Ultrasound radiomics for identifying microstructural changes in the femoral head with developmental dysplasia of the hip.Pediatric radiology · 2025Article
- Predictors for avascular necrosis of the femoral head in closed reduction following traction for developmental dysplasia of the hip.Scientific reports · 2025Article
- Association between ossific nucleus volume changes and postoperative avascular necrosis risk in children with developmental dysplasia of the hip.Scientific reports · 2024Article
- Risk factor analysis of femoral avascular necrosis after operation for Tönnis grade IV developmental dysplasia of the hip.International orthopaedics · 2024Article
- Risk factors for postoperative avascular necrosis of the femoral head in children with developmental dysplasia of the hip.Frontiers in pediatrics · 2023Article
- Developmental retardation of femoral head size and femoral head ossification in mild and severe developmental dysplasia of the hip in infants: a preliminary cross-sectional study based on ultrasound images.Quantitative imaging in medicine and surgery · 2023Article
- Does the vascular development of the femoral head correlate with the incidence of avascular necrosis of the proximal femoral epiphysis in children with developmental dysplasia of the hip treated by closed reduction?Journal of children's orthopaedics · 2021Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe purpose of this study was to identify if any correlation between size of the proximal femoral epiphysis and avascular necrosis (AVN) exists.
methodsWe retrospectively reviewed 111 patients with developmental dysplasia of the hip treated by closed reduction (124 hips). The diameter and height of both femoral head and ossific nucleus were assessed on preoperative MRI.
resultsThe diameter and the height of the femoral head as well as of the ossific nucleus of the contralateral side were significantly greater than the dislocated side. AVN occurred in 21 (16.9%) out of 124 hips. The rate of AVN gradually decreased with age: 30.0% at six to 12 months, 18.2% at 12 to 18 months and 3.7% at 18 to 24 months. Spearman correlation analysis showed that age is negatively correlated with the incidence of AVN (r = -0.274; p = 0.002) and the diameter of the femoral head has a significantly negative association with the incidence of AVN (r = -0.287; p = 0.001). No significant association was observed between the incidence of AVN and height of the femoral head or size of the ossific nucleus. Hips with AVN were significantly smaller than hips without AVN.
conclusionsThe size of both the femoral head and the ossific nucleus increase with age although the dislocated femoral head is smaller compared with the contralateral side. The diameter of the femoral head and not the size of the ossific nucleus negatively correlate with the risk of AVN, with a bigger femoral head showing lower risk of AVN. LEVEL OF EVIDENCE: III.
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