To elucidate the skeletal effects of sleeve gastrectomy, particularly in relation to sex and menopausal status, and to explicitly compare them to those following Roux-en-Y gastric bypass (RYGB).
Key Findings:
Mean weight loss after 12 months was 28.8%.
Fractional calcium absorption decreased by 17.9% at 6 months.
Areal BMD decreased at femoral neck (−6.7%) and total hip (−8.0%), while spinal aBMD decreased minimally (−1.3%).
Tibial and radial microstructure worsened, with tibial estimated strength also decreasing.
Postmenopausal women exhibited greater declines in bone health variables compared to men, indicating a higher risk.
Interpretation:
Skeletal health should be a focus in patients undergoing sleeve gastrectomy, as significant bone loss occurs, particularly in postmenopausal women, which may increase fracture risk and necessitate clinical monitoring.
Limitations:
Small sample size of 54 participants.
Lack of long-term follow-up beyond 12 months, which may limit the generalizability of findings.
Conclusion:
Bone health in sleeve gastrectomy patients is critical and parallels some adverse effects seen after RYGB. Increased monitoring and potential pharmacotherapy may be necessary for at-risk groups, particularly postmenopausal women.
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