Erschienen in:
23.11.2022 | Original Article
CT evaluation of bone fragility 2 years after bariatric surgery: an observational study
verfasst von:
Marine Fauny, Marion Halin, Edem Allado, Didier Quilliot, Laurent Brunaud, Eliane Albuisson, Isabelle Chary-Valckenaere, Damien Loeuille
Erschienen in:
Journal of Bone and Mineral Metabolism
|
Ausgabe 1/2023
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Abstract
Introduction
The objectives were to evaluate bone fragility on computed tomography (CT) in patients with obesity before and 2 years after bariatric surgery and to identify risk factors for a decrease in the scanographic bone attenuation coefficient of the first lumbar vertebra (SBAC-L1).
Materials and Methods
Patients with obesity who underwent bariatric surgery and CT before and 2 years (± 6 months) after bariatric surgery were included. SBAC-L1 was measured on CT with a fracture threshold at 145 HU.
Results
78 patients were included, 85.9% women, mean age of 48.5 years (± 11.4); the mean BMI was 46.2 kg/m2 (± 7) before surgery and 29.8 kg/m2 (± 6.7) 2 years after surgery. There was a significant change in SBAC-L1 2 years after surgery (p = 0.037). In multivariate analysis, the risk factors for having an SBAC-L1 ≤ 145HU 2 years after bariatric surgery in those with an SBAC-L1 > 145HU before surgery were age and sex, with men and older patients having a higher risk (OR 32.6, CI 95% [1.86–568.77], and OR 0.85, CI 95% [0.74–0.98], respectively).
Conclusion
SBAC-L1 was significantly lower two years after bariatric surgery. Men sex and older patients were the risk factors for having an SBAC-L1 below the fracture threshold 2 years after surgery.