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[Bone and joint complications in patients treated with continuous ambulatory peritoneal dialysis (CAPD) for more than 3 years].

The clinical, biochemical, radiological and scintigraphical data related to renal osteodystrophy were followed in 18 patients on CAPD for 3 to 5 years. The majority maintained normal serum calcium, bicarbonate and alkaline phosphatase concentrations; serum phosphate concentration decreased after starting CAPD but remained somewhat elevated. Only half of the patients needed phosphate binders. Serum PTH concentrations fell in those with high values at the start and remained stable in most others. Serum aluminum concentrations never exceeded 50 micrograms/l while serum 25(OH)D3 levels remained low. Bone radiology and scintigraphy were characterized by their stability over time. We think that CAPD, with the addition of calcium carbonate, phosphate binders and vitamin D analogs can achieve good control of renal osteodystrophy. In addition, joint problems are not common in CAPD patients but we present evidence that they too are at risk of dialysis amyloidosis.