Disorders of bone and mineral other than osteoporosis

Richard Prince, P. Glendenning

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    4 Citations (Scopus)

    Abstract

    Rickets in children and osteomalacia in adults are caused by undermineralisation of bone, which increases its susceptibility to bending and fracture; treatment is with calcium, vitamin D or phosphate, depending on the specific mineral or vitamin deficiency.In Paget's disease, osteoclasts are overactive and produce woven or "repair" bone, which is mechanically weaker than lamellar bone; treatment is with antiresorptive bisphosphonate drugs.Cancers can produce bone lysis through direct spread within the skeleton or production of endocrine parathyroid hormone-like factors; treatment is with a bisphosphonate, plus appropriate therapy for the cancer.Cancer can also produce hypercalcaemia if the capacity of the kidneys to excrete the calcium dissolved from bone is exceeded; treatment is with saline infusion to increase excretion and a bisphosphonate.Primary hyperparathyroidism is the other common cause of hypercalcaemia and is usually associated with a single parathyroid adenoma; it is best treated with parathyroidectomy.Hypocalcaemia may result from severe decrease in calcium absorbed or lack of parathyroid action; both are treated with calcium and vitamin D (ergocalciferol or calcitriol).
    Original languageEnglish
    Pages (from-to)354-359
    JournalMedical Journal of Australia
    Volume180
    Issue number7
    Publication statusPublished - 2004

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