New radiographic standards for age at appearance of the ossification center of the femoral head in Japanese: Appearance at ≤12 months of age is normal in Japanese infants

Sugawara, Ryo; Watanabe, Hideaki; Taki, Naoya; Aihara, Toshinori; Furukawa, Rieko; Nakata, Waka; Takeshita, Katsushi; Kikkawa, Ichiro

doi:10.1016/j.jos.2018.08.017

Cited by 7 publications

(5 citation statements)

References 7 publications

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“…Persistent lateral hip subluxation and dislocation result in a shallow acetabulum and a mismatched femoral head. A smaller femoral head and delayed appearance of the ossific nucleus in radiographic DDH were also found in the study of Wu et al (22) and Sugawara et al (23). More importantly, a smaller femoral head was significantly associated with the incidence of avascular necrosis (22).…”

Section: Discussionsupporting

confidence: 57%

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

Yan

Du²,

Liu

et al. 2023

Quant Imaging Med Surg

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Section: Discussionsupporting

confidence: 57%

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

Yan

Du²,

Liu

et al. 2023

Quant Imaging Med Surg

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“…Age was reduced to a dichotomous variable: age less than 9 months and age 9 months or greater. This particular age was chosen because ossification of the femoral head can be expected by this age in more than 95% of patients [19,20], and there are several past studies that have debated the importance of delaying treatment until after this developmental milestone has occurred [21]. We also recorded acetabular indices (AIs) and IHDI classification (Fig.…”

Section: Cohort Characteristicsmentioning

confidence: 99%

Severity of hip dysplasia as the major factor affecting outcome of closed reduction in children with hip dysplasia

Cummings,

Oladeji,

Rosenfeld

et al. 2023

Journal of Pediatric Orthopaedics B

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The objective of this study was to analyze a multicenter cohort of children with developmental dysplasia of the hip (DDH) who underwent treatment with closed reduction. We sought to report the effects that severity of hip dysplasia and age have on the development of femoral head avascular necrosis (AVN) and the need for additional procedures. All patients with DDH and minimum 2 years of follow-up who underwent closed reduction were identified. The following variables were recorded: sex, laterality of hip involvement, age, acetabular index (AI), and International Hip Dysplasia Institute (IHDI) grade. The effects of patient age and pre-procedure IHDI grade on the rate of AVN and need for additional procedures after the closed reduction were analyzed using an alpha of 0.05. Seventy-eight total hips were included in the final analysis. The average patient age was 12 months. AVN of the femoral head was reported in 24 hips (30.8%) and 32 hips (41.0%) required additional surgery. Higher pre-op IHDI grade was associated with higher risk of developing Bucholz-Ogden grades II-IV AVN of the femoral head (P = 0.025) and requiring additional surgery (P= 0.033) regardless of patient age. There were no statistically significant differences for the effect of age on the measured outcomes (P > 0.05). These findings suggest that severity of dislocation (IHDI grade) is a significant risk factor for the development of AVN and need for additional procedure.

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“…Analysis of bone development and the appearance of ossification centers [12] may provide useful information in a variety of clinical settings. The ossification center of the epiphysis in the femoral head is an essential radiographic feature in the newborn hip.…”

Section: Originalni Radovimentioning

confidence: 99%

The impact of body weight on the secondary osification centers development and the term of closure of the anterior fontanelle in infants

Marković-Jovanović,

Jovanović,

Stolić

et al. 2022

Praxis medica

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Introduction: during the infant development, the organ growth is influenced by genetic factors, diet, hormones and many neuropeptides. The secondary ossification center in the hip joint begins to form around the 4th month of life. Primary dentition begins at the age of 5-6 months with the emergence of the central incisor in the maxilla. At birth, 6 fontanelles are present between the plate bones of the cranium. The largest is the anterior or large fontanelle. Objective of our research is to analyze the development of the secondary ossification center in the femoral head in relation to dentition and closure of the anterior fontanelle closure as well as influence of childrens' birth weight and current weight on these processes. Methodology: The study included 284 infants, male and female, aged 3 to 8 months. Clinical examination of the musculoskeletal system, anthropomentric measurements and ultrasonographic findings of the hip joint were performed at the Pediatric Clinic of the Clinical Hospital Center Pristina in Gracanica. Results: The development of secondary ossification centre correlated with child's age, dentition, anterior fontanelle closure, birth weight and delivery method, as well as actual body weight. Anterior fontanelle size was inversely related to age, body weight and secondary ossification. Conclusions: According to regression analysis, body weight is the only factor that has a direct and independent impact on the onset and progression of ossification process. Every additional kilogram of a child's body weight accelerates secondary ossification by 1.3-3.77 times.

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New radiographic standards for age at appearance of the ossification center of the femoral head in Japanese: Appearance at ≤12 months of age is normal in Japanese infants

Cited by 7 publications

References 7 publications

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

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

Severity of hip dysplasia as the major factor affecting outcome of closed reduction in children with hip dysplasia

The impact of body weight on the secondary osification centers development and the term of closure of the anterior fontanelle in infants

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