Bone Strength Is Preserved Following Bariatric Surgery

Background There is an increasing concern that bariatric surgery results in excessive bone loss as demonstrated by studies that use areal bone mineral density (aBMD) outcomes by dual energy X-ray absorptiometry (DXA). Thus, we explored the effect of bariatric surgery on bone mechanical strength. Met...

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Bibliographic Details
Published in:Obesity surgery 2015-02, Vol.25 (2), p.263-270
Main Authors: Scibora, Lesley M., Buchwald, Henry, Petit, Moira A., Hughes, Julie, Ikramuddin, Sayeed
Format: Article
Language:English
Subjects:
Absorptiometry, Photon
Adult
Bariatric Surgery - adverse effects
Bone and Bones - diagnostic imaging
Bone Density
Bone Diseases, Metabolic - diagnostic imaging
Bone Diseases, Metabolic - etiology
Bones
Clinical outcomes
Female
Gastrointestinal surgery
Humans
Male
Medicine
Medicine & Public Health
Middle Aged
Obesity
Obesity - surgery
Original Contributions
Postoperative Period
Radius - diagnostic imaging
Surgery
Tibia - diagnostic imaging
Tomography
Tomography, X-Ray Computed
Young Adult
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Summary:Background There is an increasing concern that bariatric surgery results in excessive bone loss as demonstrated by studies that use areal bone mineral density (aBMD) outcomes by dual energy X-ray absorptiometry (DXA). Thus, we explored the effect of bariatric surgery on bone mechanical strength. Methods Bone strength and body composition outcomes were measured in 21 adults (age 45.3 years; BMI 45.7 kg/m 2 ) at baseline (pre-surgery) and 3, 6, and 12 months post-surgery. Bone geometry, density and strength were assessed by peripheral quantitative computed tomography (pQCT) at the distal (4 %) sites of the radius and tibia and at the midshaft sites of the tibia (66 %) and radius (50 %). Participants were divided into tertiles (high, medium, and low) of percentage weight loss at 6 months post-surgery. Results Participants in all three tertiles lost significant body weight by 6 months post-surgery (mean loss −5 to −30 %, all p  
ISSN:0960-8923
1708-0428
DOI:10.1007/s11695-014-1341-8