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American Journal of Pathology, Vol 78, 365-384, Copyright © 1975 by American Society for Investigative Pathology

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Metabolic bone disease in chronic renal failure. I. Dialyzed uremics

WE Huffer, D Kuzela and MM Popovtzer

Garner and ball's point counting technic was used to compare metabolic bone disease in dialyzed and nondialyzed uremic patients. Histologic measurements of bone from dialyzed and nondialyzed uremic patients dying between 1966 and 1971 showed that dialyzed patients have quantitatively more severe bone resorption, distortion of trabecular architecture and mineralization defects. Mineralization defects become more severe as the duration of dialysis increases but are not related to serum calcium and phosphorus levels. Bone volume in both groups is normal or increased and in dialysis patients increases in proportion to the elevation of serum phosphorus. Mean serum phosphorus and calcium levels, bone volume, and volume: surface ratios all decreased in dialysis patients between 1966 and 1971, while bone resorption and mineralization defects did not change. These results suggest that lowering of serum phosphorus without increasing serum calcium may aggrevate the uremic bone disease by reducing bone volume without improvement of mineralization and resorption defects.