The Decline in Hip Bone Density after Gastric Bypass Surgery Is Associated with Extent of Weight Loss

Bariatric surgery is common and may be associated with deleterious effects on the skeleton.Our objective was to assess bone metabolism and bone mineral density (BMD) after Roux-en-Y gastric bypass.We conducted a 1-yr prospective longitudinal study at a university hospital bariatric surgery practice and metabolic bone disease unit.Participants included 23 obese (mean body mass index 47 kg/m(2)) men and women, aged 20-64 yr.Serum PTH,...