Renal osteodystrophy, disorders of vitamin D metabolism, and hypophosphatasia.

Recent advances in renal osteodystrophy deal with the pathogenesis of the disease, in particular in early renal failure, with the mechanisms of skeletal resistance to parathyroid hormone, with the potential role of iron, and with increased knowledge of adynamic bone disease. For the control of phosphatemia, aluminum-containing phosphate binders are more and more avoided, whereas calcium acetate or carbonate are more and more prescribed. X-linked hyphophosphatemia continue to cause great interest as well as the various iatrogenic osteomalacias.