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Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
Published on: January 29, 2018
Demographical aspects of Schmorl nodes: a skeletal study
Gali Dar1, Smadar Peleg, Youssef Masharawi
1Department of Physical Therapy, Haifa University, Mount Carmel, Haifa, Israel. galidar@yahoo.com
Spine
|June 18, 2009
Summary
Schmorl nodes (SNs) are common in adults, affecting nearly half of individuals. Prevalence varies by gender and ethnicity, suggesting a genetic basis rather than occupational factors.
Area of Science:
- Anatomy
- Anthropology
- Osteology
Background:
- Schmorl nodes (SNs) prevalence estimates vary widely (5%-70%), hindering understanding of their etiology and clinical significance.
- Previous research lacks comprehensive data on SNs distribution across diverse human populations.
Purpose of the Study:
- To investigate the association between Schmorl nodes (SNs) and demographic factors including gender, ethnic origin, and age.
- To gather reliable data on SNs prevalence in various human groups to elucidate their etiology.
Main Methods:
- A descriptive study examining 240 human skeleton vertebrae (T4-L5) from a normal adult population.
- Vertebrae were analyzed for the presence of Schmorl nodes, defined as depressions with sclerotic margins on the vertebral body surface.
- Data were stratified by gender, ethnicity, and age.
Main Results:
- Schmorl nodes (SNs) were identified in 48.3% of the 240 individuals studied.
- SNs prevalence is age-independent but significantly associated with gender and ethnicity.
- SNs are more common in males (54.2%) than females (43%) and in European-Americans (60.3%) compared to African-Americans (36.7%).
Conclusions:
- Schmorl nodes (SNs) are a common finding in normal adult populations, with nearly half exhibiting at least one.
- The observed demographic patterns (gender and ethnicity dependence) suggest a potential genetic predisposition.
- Findings indicate that Schmorl nodes are unlikely to be solely of occupational origin.
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