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A simple method for bone age assessment: the capitohamate planimetry

Jung-Ah Choi1, Young Chul Kim2, Seon Jeong Min1

  • 1Department of Radiology, Hallym University Dongtan Sacred Heart Hospital, 7 Keunjaebong-gil, Hwaseong, 18450, Gyeonggi-do, Republic of Korea.

European Radiology
|February 1, 2018
PubMed

Insights

Capitate-hamate planimetry offers a reliable method for bone age assessment in children. This technique shows strong correlation with chronological age and superior reproducibility compared to the Greulich-Pyle method.

Area of Science:

  • Pediatric Endocrinology
  • Radiology
  • Orthopedics

Background:

  • Bone age assessment is crucial for diagnosing pediatric endocrine disorders.
  • Standard methods like the Greulich-Pyle (GP) method rely on hand radiography.
  • Accurate bone age estimation aids in monitoring growth and development.

Purpose of the Study:

  • To evaluate the reliability of capitate-hamate (CH) planimetry as a bone age indicator.
  • To compare the accuracy and reproducibility of CH planimetry against the established GP method.

Main Methods:

  • Retrospective analysis of 391 children aged 1-180 months.
  • Manual measurement of capitate and hamate areas on plain radiographs to define CH planimetry.
  • Independent application of CH planimetry and GP methods by two reviewers on 109 children.

Main Results:

  • Strong positive correlation observed between chronological age and CH planimetry measurements (r = 0.97).
  • CH planimetry accuracy (84.39-84.46%) was comparable to the GP method (85.15-87.66%).
  • CH planimetry demonstrated significantly higher interobserver reproducibility (precision 4.42%) than the GP method (precision 8.45%).

Conclusions:

  • Capitate-hamate planimetry is a reliable and reproducible method for bone age assessment.
  • This technique offers a promising alternative for evaluating bone maturation in children.
  • CH planimetry's enhanced reproducibility may improve diagnostic consistency in pediatric endocrinology.
Abstract

Keywords:
BoneChildGrowthHandRadiography

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