S-529 Change of bone densitometry after kidney transplantation

Background: Numerous studies have shown that osteoporosis is common in kidney transplant recipients. However, change of bone densitometry after kidney transplantation (KT) is not fully understood. / Methods: Twenty-two kidney transplant recipients (14 males, 8 females) with bone densitometry at pre-transplant and 24 month after KT were reviewed. / Results: Recipients’ median age (43.5 years, range 21.3 ~61.7) and dialysis duration before KT (2.6 years, range 0.04~12.3) were recorded. T score after KT did not show significant change (p＝0.710 in lumbar spine, p＝0.138 in femur neck). T score of lumbar spine or femur neck at 24 month after KT was positively associated with T score at pretransplant (p＝0.001 in lumbar spine, p＝0.001 in femur neck). However, change of T score during 24 months (delta T score) of lumbar spine was negatively associated with T score at pretransplant (p＝0.001 in lumbar spine). Recipients with osteopenia (T score of femur neck ≤ -1.0) increased at 24 month after KT (p＝0.048). / Conclusions: Careful follow-up of bone densitometry for KT recipients was needed.