title: Successful Renal Transplantation, Bone Mineral Densitometry, and Affecting Factors.
abstract: BACKGROUND
  Successful renal transplantation corrects many disorders of bone and mineral metabolism owing to the normalization of serum levels of calcium and phosphorus and restoration of calcitriol production. However, successful transplantation does not guarantee complete resolution of the pre-transplantation osteopathy.
  
  
  METHODS
  This study evaluated 100 patients who underwent successful renal transplantation. We determined the possible risk factors for osteoporosis among 72 male and 28 female renal transplant patients of mean age 32.3 ± 10.0 years with 81% of them recipients of living-related grafts. Bone mineral densitometry (BMD) was performed in all patients before and ≥ 1 year after transplantation. Routine test results and demographic data were recorded.
  
  
  RESULTS
  At the time of transplantation 76% of the patients had osteoporosis or osteopeni and only 24% of them had normal BMD in 4 regions (femur neck, lumber, radius, and ultradistal). After transplantation, 70% of them had osteopororosis or osteopeni and 30% were normal. After renal transplantation, BMD scores increased (P > .05) although the diagnosis of the bone disease did not change (P < .05). Only preexisting osteodystrophy and smoking were found to be important risk factors for post-transplantation osteoporosis.
  
  
  CONCLUSIONS
  After renal transplantation, BMD scores increased whereas the diagnosis of bone disease did not change statistically. We found that medical management of osteopenia/osteoporosis before transplantation and smoking habit are the main factors to prevent post-transplantation osteoporosis. Further long-term studies may be more helpful for evaluating the risk factors of post-transplantation osteoporosis.
authors: Nephrology, Başkent University Faculty of Medicine, Ankara, Turkey.
authors: M B
authors: MB
authors: Canoz
authors: Nephrology, Başkent University Faculty of Medicine, Ankara, Turkey.
authors: D
authors: D
authors: Yavuz
authors: Nephrology, Başkent University Faculty of Medicine, Ankara, Turkey. Electronic address: alpaltinoglu@yahoo.com.
authors: A
authors: A
authors: Altunoglu
authors: Medical Education, Ondokuz Mayıs University Faculty of Medicine, Samsun, Turkey.
authors: R
authors: R
authors: Yavuz
authors: Nephrology, Başkent University Faculty of Medicine, Ankara, Turkey.
authors: T
authors: T
authors: Colak
authors: General Surgery, Başkent University Faculty of Medicine, Ankara, Turkey.
authors: M
authors: M
authors: Haberal
mesh_terms: D000328:Adult; D015519:Bone Density / Q000502:physiology*; D002118:Calcium / Q000378:metabolism*; D003720:Densitometry / Q000379:methods*; D005260:Female; D005272:Femur Neck / Q000000981:diagnostic imaging; D006801:Humans; D007676:Kidney Failure, Chronic / Q000601:surgery*; D016030:Kidney Transplantation; D008297:Male; D008875:Middle Aged; D011859:Radiography
chemical_list: D002118:Calcium