Description of Proximal Femoral Growth in Pediatric Patients Without Hip Disorders Using Tomography
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Abstract
Materials and Methods: Retrospective study evaluating CT images of the hips of healthy patients under 18 years. The following measurements were taken by a trained orthopedist: femoral offset, femoral neck length,femoral head diameter, and neck-shaft angle.
Results: Femoral offset increases by 1.96 mm until age 12.5. From 12.5 to 16 years of age, it increases by 1.2 mm. A constant rise in the growth of the femoral neck length was found. The neck-shaft angle presented a progressive decrease until age 12. After that point, the curve flattened. An increase in femoral head diameter of 1.56 mm per year was observed until age 13 and then 0.62 mm per year.
Conclusions: The measurements evaluated in this study are essential for the diagnosis, follow-up, and treatment approach in hip pathologies during growth. More extensive research is needed to define normal ranges that will serve as a baseline for anatomy restoration in hip joint preservation surgery.
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