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Bone mineral density in patients with chronic hypoparathyroidism
S Abugassa1, J Nordenström, S Eriksson
1Department of Surgery, Huddinge University Hospital, Sweden.
The Journal of Clinical Endocrinology and Metabolism
|June 1, 1993
Summary
Post-surgical hypoparathyroidism in females leads to increased bone mass in the femur, spine, and radius compared to controls. This finding suggests parathyroid hormone (PTH) deficiency may positively impact skeletal health.
Area of Science:
- Endocrinology
- Bone Metabolism
- Surgical Outcomes
Background:
- Hypoparathyroidism can occur after thyroid or hyperparathyroid surgery.
- The effect of hypoparathyroidism on bone mass is not fully understood.
- Previous studies have not consistently linked parathyroid hormone (PTH) levels to bone density.
Purpose of the Study:
- To investigate skeletal mass in females with postsurgical hypoparathyroidism.
- To compare bone density in hypoparathyroid patients with healthy controls and patients with preserved parathyroid function.
- To assess the impact of long-term T4 medication on bone mass.
Main Methods:
- Photon absorptiometry used to measure bone mineral density.
- Study included 19 females with postsurgical hypoparathyroidism.
- Controls included healthy subjects and normocalcemic patients without hypoparathyroidism.
Main Results:
- Hypoparathyroid patients exhibited 10-32% greater bone mass in the proximal femur, lumbar spine, and distal radius compared to controls.
- Patients with retained parathyroid function showed no difference in bone mass compared to controls.
- Long-term T4 medication did not correlate with decreased bone mass.
Conclusions:
- Postsurgical hypoparathyroidism is associated with increased bone mass.
- Reduced PTH, vitamin D treatment, and calcium supplementation may contribute to elevated bone density.
- Preserved parathyroid function after surgery does not negatively impact bone mass.