AI Article Synopsis
- - The study aims to establish normal measurements of the proximal femur and femoral head in children and adolescents, which is essential for distinguishing between normal variations and potential deformities as they grow up.
- - Researchers analyzed 170 hips using 3D-CT scans and found that certain femoral measurements change with age, like increases in femoral head volume and diameter, while others decrease; gender had minimal influence.
- - The findings provide valuable reference values for paediatricians and surgeons, helping in the early diagnosis of femoral issues and planning for treatments or surgeries.
Article Abstract
Purpose: Defining normal anthropometric ranges of proximal femur and femoral head for each age group in children/adolescents is a necessity when differentiating normal anatomical variants from pathological deformities. Aim of this study is to define a set of normal anthropometric parameters based on 3D-CT measurements in normal asymptomatic children/adolescents and analyse the variations arising depending on age, side, and/or gender.
Methods: Morphology of the proximal femur was retrospectively assessed in 170 hips (85 children, < 15 years). Measurements included covered femoral head volume (CFHV), femoral head diameter (FHD), femoral head extrusion index (FHEI), coronal alpha angle (CAA), lateral centre-edge angle (LCEA), anterior (AOS) and posterior head-neck offset (POS) and femoral neck-shaft angle (FNSA). Correlation analyses as well as inter- and intra-rater reliability were performed.
Results: CFHV, LCEA, FHD and AOS/POS increased with age and FHEI, CAA, and FNSA decreased with age. None of the measurements correlated with the side. AOS showed a poor correlation with gender. Rapid growth phases were observed at the age of 1, 7 and 11. The inter- and intra-rater reliability was high (range ICC 0.8-0.99 Cronbach alpha 0.86-0.99).
Conclusion: This data delivers a description of growth phases as well as gender and age-correlated reference values of the proximal femoral morphology that could be used by paediatricians and orthopaedic/paediatric surgeons to early diagnose proximal femur deformities and provide guidance in the planning of possible operations.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8536629 | PMC |
| http://dx.doi.org/10.1007/s00276-021-02841-3 | DOI Listing |
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