Related Experiment Video
Updated: Jul 18, 2026
Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
Published on: January 31, 2025
[Reliability of the Sauvegrain and Nahum method to assess bone age in a contemporary population]
K Chaumoître1, N Colavolpe, Y Sayegh-Martin
1Service d'Imagerie Médicale, Hôpital Nord, 13915 Marseille Cedex 20. kathia.chaumoitre@ap-hm.fr
Purpose:
The Sauvegrain and Nahum method can be used to assess bone age in addition to methods based on hand and wrist radiographs in children between 9 and 15 years of age. The aim of this study was to evaluate the reliability of this method in a contemporary population.
Material And Methods:
Elbow radiographs taken for acute trauma in 106 patients (42 girls, 64 boys) aged from 9 to 15 years old were analyzed by four radiologists. Inclusion in the study required the absence of chronic disease and previous trauma as well as parental consent.
Results:
There was no significant difference between the four observers. The differences between bone age (BA) and chronological age (CA) were 5+/-1 months for the study group, 3.5+/-9 months for the female group, and 6+/-12 months for the male group. Bone age was overestimated compared with chronological age. There was a good correlation between CA and BA (r = 0.84).
Conclusion:
The Sauvegrain and Nahum method seems to overestimate CA in a contemporary population.
Related Concept Videos
02:48Radioactive Decay and Radiometric Dating
01:29Bone Disorders
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...