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Bariatric surgery and osteoporosis
Introduction. Bariatric surgery, regardless the type of approach, has aggressively extended nowadays. The procedure saves lives due to substantial improvement of severe cardio-metabolic co-morbidities, but the influence of nutritional status might not be completely harmless including bone and muscle changes. Our purpose is to introduce data regarding skeleton after bariatric surgery. This is a narrative mini-review including papers from PubMed. A selection of 33 papers has been done.
General data. Longitudinal better than cross-sectional studies confirmed an annual rate of losing bone mineral density at lumbar and femoral neck of 3-10% starting with first year after surgery and continuing within the third year; low vitamin D and calcium absorption with associated secondary hyperparathyroidism is described; others anomalies include elevated bone remodelling markers, damage of bone microarchitecture, fracture healing disturbances and sarcopenia.
Conclusion. Overall, despite spectacular results after bariatric surgery, the bone and muscle are expected to suffer a level of deterioration, which should be taken into account for assuring an adequate quality of life and an immediate and distant good post-operatory prognosis.
Keywords: bariatric surgery, osteoporosis, bone
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