A common weight-loss surgery for teens and young adults with obesity is weakening patients' bones, a new study finds.
"We should not forget the bone," said study co-author Dr. Miriam Bredella, a radiologist and professor of radiology at Harvard Medical School."It's really important that [physicians] are aware of bone health after weight-loss surgery," she told Live Science. The sleeve gastrectomy patients had significantly lower BMIs two years out, while the counseled patients' BMIs slightly increased, on average. However, the surgery group had lost bone density in their lower spine and had significantly more fat in their bone marrow, which can weaken overall skeletal strength.