Precision Errors and Least Significant Changes in Paediatric Forearm Measurements of Bone Density, Mass, Dimensions, Mechanostat Parameters and Soft Tissue Composition by Stratec XCT-2000L

Overview

Journal J Musculoskelet Neuronal Interact

Specialties Neurology
Orthopedics
Physiology

Date 2023 Dec 1

PMID 38037358

Authors

Maciej Jaworski

Maria Kobylinska

Affiliations

Soon will be listed here.

Abstract

Objectives: The peripheral quantitative computed tomography (pQCT) is gaining popularity in the field of paediatric densitometry, however, very little is known about the precision errors of this method in diseased children. The aim of the study was to evaluate the precision errors of bone density, mass, dimensions, strength, mechanostat parameters and soft tissue at the forearm in diseased children.

Methods: Stratec XCT 2000L apparatus was used. The measurement sites were 4% and 66% of the forearm length. The study group consisted of 60 patients (31 girls) aged 5,7-18,0 yrs.

Results: We observed week relationships between precision errors and body size with r from -0,37 to 0,28. Relative precision errors (CV%) were from 0,85% for radius 66% cortical bone density to 3,82% for fat cross-sectional area to muscle cross-sectional area ratio. Least significant change (LSC) was from 2,73% to 10,59%, respectively.

Conclusion: Presented study reveal pQCT method at the forearm in diseased children as relatively precise technique. The results may help with planning and interpretation of pQCT studies in diseased children.

Citing Articles

Precision Errors of Lower Leg Measurement by pQCT in Children With Medical Conditions: Bone Density, Mass, Dimensions, Mechanostat Parameters and Soft Tissue Composition.

Jaworski M, Kobylinska M J Musculoskelet Neuronal Interact. 2025; 25(1):18-28.

PMID: 40024224 PMC: 11880848. DOI: 10.22540/JMNI-25-018.

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