Bone Health in Postmenopausal Women with Fractures
Author Information
Author(s): Emily M Stein, Sherry Liu, Thomas L Nickolas, Adi Cohen, Valerie Thomas, Donald J McMahon, Chiyuan Zhang, Perry T Yin, Felicia Cosman, Jeri Nieves, Edward X Guo, Elizabeth Shane
Primary Institution: Columbia University College of Physicians and Surgeons
Hypothesis
HR-pQCT and FEA would reveal differences in bone mass, microarchitecture, and mechanical competence between women with and without fracture.
Conclusion
Women with fractures had reduced volumetric bone mineral density, microarchitectural deterioration, and decreased strength, particularly at the radius compared to the tibia.
Supporting Evidence
- Women with fractures had lower total density and cortical thickness at the radius.
- Trabecular density and microarchitectural parameters differed significantly between fracture and nonfracture subjects.
- Stiffness was reduced in fracture patients, more markedly at the radius than at the tibia.
Takeaway
This study found that women who had fractures after menopause had weaker bones and different bone structures compared to those who didn't have fractures.
Methodology
Postmenopausal women were assessed for bone density and microarchitecture using DXA and HR-pQCT, comparing those with and without fractures.
Potential Biases
Potential selection bias due to exclusion criteria and participant recruitment methods.
Limitations
The study's cross-sectional design limits the ability to predict future fractures.
Participant Demographics
Mean age 68 years, 78% white, 16% Hispanic, 4% African American.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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