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Bone mineral content and fragility fractures
Clinical Orthopaedics and Related Research
|June 1, 1977
Summary
Bone mineral mass is generally decreased in patients with fragility fractures like hip or vertebral fractures. However, forearm bone density measurements are not reliable for predicting individual fracture risk due to overlapping results.
Area of Science:
- Orthopedics
- Radiology
- Gerontology
Background:
- Bone fragility fractures, including hip, vertebral, and Colles' fractures, represent a significant health concern, particularly in aging populations.
- Assessing bone mineral mass is crucial for understanding fracture susceptibility and developing preventative strategies.
Purpose of the Study:
- To investigate the relationship between forearm bone mineral content and various types of fragility fractures.
- To evaluate the utility of forearm bone mineral density measurements in predicting fracture risk.
Main Methods:
- Bone mineral content was measured using gamma absorptiometry in 249 patients with characteristic bone fragility fractures.
- Fracture cases were compared to control groups to assess differences in bone mineral mass.
Main Results:
- A generally decreased bone mineral mass was observed in patients with vertebral crush fractures, femoral neck fractures, and distal forearm fractures.
- Younger women with femoral neck fractures showed a more pronounced difference in bone mineral mass compared to older women.
- Colles' fracture cases exhibited the greatest deviation from normal controls in both the youngest and oldest age groups.
- Low forearm bone mass was also noted in fractures of the upper humerus, ankle, and lateral tibial condyle.
Conclusions:
- While certain fragility fractures are associated with reduced bone mineral mass, forearm bone density measurements show significant overlap between fracture and control groups.
- Forearm bone mineral content measurement is not recommended as a highly accurate tool for determining individual fracture susceptibility.