Increase of Bone Resorption and the Parathyroid Hormone in Postmenopausal Women in the Long-term after Roux-en-Y Gastric Bypass

Background The effects of Roux-en-Y Gastric Bypass (RYGB) on bone in the long-term remains unclear. We assessed bone metabolism and bone mineral density (BMD) 1 to 5 years after RYGB.