Interrelationship between bone aging traits and basic anthropometric characteristics

Area of Science:

• Gerontology
• Orthopedics
• Radiology

Background:

• Bone aging involves multiple traits like bone mineral density (BMD) and osteoarthritis (OA).
• Understanding the interplay between these traits and their age/anthropometric correlations is crucial for aging bone research.

Purpose of the Study:

• To investigate the age dependence of bone aging traits (BMD, cortical index, OA, osseographic scores).
• To determine if correlations between bone aging traits are individual- or population-based.
• To assess the influence of anthropometric features on bone aging variations.

Main Methods:

• Analysis of hand radiographs from 1,295 individuals (18-89 years) in Chuvasha, Russia.
• Measurement of BMD, cortical index (CI), OA (Kellgren and Lawrence grading), and osseographic scores (OSS).
• Collection of anthropometric data including body weight, height, skinfolds, and bone breadths.

Main Results:

• Age dependence was stronger for OA-linked traits than osteoporosis (OP)-linked traits.
• Sex-specific age correlations differed for OP-linked traits but not OA-linked traits.
• Interrelationships between OA and OP traits weakened significantly after age adjustment, suggesting independent development.
• Anthropometric characteristics showed low correlations (r < 0.20) with bone aging traits.

Conclusions:

• Osteoarthritis and osteoporosis in the hand appear to develop independently, likely due to distinct physiological mechanisms.
• Age is a more significant factor for OA-related bone changes than for OP-related changes.
• Anthropometric factors contribute minimally to the pattern and rate of hand bone aging.