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Pediatric reference values for tibial trabecular bone mineral density and bone geometry parameters using peripheral

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Summary

This study provides crucial reference data for bone density and geometry in children and adolescents. These findings, using peripheral quantitative computed tomography (pQCT), aid in interpreting bone health assessments in young individuals.

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Area of Science:

  • Pediatric Bone Health
  • Biomedical Engineering
  • Radiology

Background:

  • Accurate assessment of bone health in children and adolescents is vital for monitoring growth and identifying potential issues.
  • Reference data for bone mineral density and geometry are essential for interpreting diagnostic imaging in pediatric populations.
  • Peripheral quantitative computed tomography (pQCT) offers a valuable method for evaluating bone characteristics in young individuals.

Purpose of the Study:

  • To establish age- and height-specific reference data for tibial bone mineral density and geometry in healthy European children and adolescents.
  • To utilize peripheral quantitative computed tomography (pQCT) for detailed analysis of trabecular and cortical bone parameters.
  • To generate gender-specific centile curves for key bone parameters to facilitate clinical interpretation.

Main Methods:

  • Recruitment of 432 healthy children and adolescents (ages 5-19) from diverse geographic areas in Belgium over two years.
  • Multislice pQCT scanning of the distal tibia (metaphysis and diaphysis) of the dominant leg.
  • Application of the LMS method to generate gender-specific centile curves for various bone density and geometry parameters.

Main Results:

  • Gender-specific centile curves were successfully generated for tibial trabecular and cortical volumetric bone mineral density, bone mineral content, and cross-sectional bone geometry.
  • Reference data were established for multiple sites of the tibia (4%, 14%, and 38% sites), encompassing total and trabecular volumetric bone mineral density, bone mineral content, total bone cross-sectional area, periosteal circumference, cortical volumetric bone mineral density, endosteal circumference, and cortical thickness.
  • The generated centile curves provide a normative framework for interpreting pQCT results in European pediatric populations.

Conclusions:

  • The established centile curves serve as a valuable tool for the interpretation of pQCT results in European children and adolescents.
  • This reference data supports the clinical assessment of bone health and growth in pediatric populations.
  • The findings emphasize the importance of age- and height-specific normative data for accurate evaluation of bone structure using pQCT.