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Changes in bone mass and body composition after bariatric surgery.
- Source :
-
Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology [Gynecol Endocrinol] 2020 Jul; Vol. 36 (7), pp. 578-581. Date of Electronic Publication: 2020 May 14. - Publication Year :
- 2020
-
Abstract
- Aim : To analyze the effects of body weight loss on bone mineral density (BMD) on hip (Hip BMD) and lumbar spine (Lumbar BMD) after six months of bariatric surgery. Bariatric surgery is an effective treatment for morbid obesity. Nonetheless, there are scant data on the effect of weight bearing on bone structure. Material and methods : Seventeen obese women aged 41.2 ± 11.3 yrs. who underwent Roux-en-Y gastric bypass (RYGB) were included. Body composition assessments were performed through dual-energy X-ray absorptiometry immediately before and after 6-months RYGB. Data collected pre- and post-RYGB included total body weight, body mass index (BMI), lean body mass (LM), fat mass (FM) and bone mineral content. The pre- (PRE) and post-operative (POST) results were compared. Results : Lumbar BMD POST presented a non-significant loss of 1.8% whereas Hip BMD POST showed a significant loss of 17.8%. The analysis demonstrated that BMI and LM PRE explained 26% and 49%, respectively, of Hip BMD PRE variability. In addition, LM POST explained 30% of hip BMD POST variability and was not significant for Lumbar BMD POST. Conclusions : Obesity and rapid weight loss showed direct influence in Hip BMD after six months of bariatric surgery. However, its effect on the lumbar spine area was smaller due to the higher capacity of the spine to dissipate loads through its curvature.
- Subjects :
- Absorptiometry, Photon
Adult
Bariatric Surgery statistics & numerical data
Body Mass Index
Brazil epidemiology
Female
Follow-Up Studies
Gastric Bypass adverse effects
Gastric Bypass statistics & numerical data
Hip
Humans
Longitudinal Studies
Lumbar Vertebrae
Middle Aged
Obesity, Morbid epidemiology
Obesity, Morbid metabolism
Postoperative Complications epidemiology
Postoperative Complications etiology
Treatment Outcome
Bariatric Surgery adverse effects
Body Composition physiology
Bone Density physiology
Obesity, Morbid surgery
Subjects
Details
- Language :
- English
- ISSN :
- 1473-0766
- Volume :
- 36
- Issue :
- 7
- Database :
- MEDLINE
- Journal :
- Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology
- Publication Type :
- Academic Journal
- Accession number :
- 32406280
- Full Text :
- https://doi.org/10.1080/09513590.2020.1762558