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Hyperthyroidism, bone mineral, and fracture risk--a meta-analysis
Peter Vestergaard1, Leif Mosekilde
1The Osteoporosis Clinic, Aarhus Amtssygehus, Aarhus University Hospital, Aarhus, Denmark. p-vest@post4.tele.dk
Thyroid : Official Journal of the American Thyroid Association
|August 22, 2003
Summary
Hyperthyroidism significantly lowers bone mineral density (BMD) and increases fracture risk. Treatment normalizes BMD, even without specific osteoporosis therapies, highlighting the importance of managing thyroid health.
Area of Science:
- Endocrinology
- Bone Metabolism
- Geriatric Medicine
Background:
- Hyperthyroidism is associated with negative calcium balance, bone resorption, and decreased bone mineral density (BMD).
- The impact of hyperthyroidism on fracture risk remains a significant clinical concern, particularly in aging populations.
Purpose of the Study:
- To conduct a meta-analysis examining changes in bone mineral density (BMD) and fracture risk following hyperthyroidism treatment.
- To assess the recovery of BMD and the correlation between hyperthyroidism and hip fracture risk.
Main Methods:
- Systematic literature search of PubMed and EMBASE using keywords: hyperthyroidism, bone mineral density (BMD), and fracture.
- Inclusion of 20 references for BMD analysis and 5 for fracture risk assessment in the meta-analysis.
Main Results:
- Untreated hyperthyroidism significantly decreased BMD.
- BMD increased significantly after treatment, normalizing within 1-4 years.
- Hip fracture risk increased with age at diagnosis, aligning with BMD predictions and clinical observations.
Conclusions:
- Hyperthyroidism leads to decreased BMD and elevated fracture risk.
- Normalizing thyroid hormone levels effectively restores BMD without specific anti-osteoporotic interventions.
- Managing hyperthyroidism is crucial for bone health and fracture prevention.