Boston (Massachusetts), Nov. 27 -- : A common weight loss surgery for adolescents with obesity called sleeve gastrectomy has harmful effects on bones, according to a new study.

"Childhood obesity is a major public health issue that has increased over the last 10 years," said lead investigator Miriam A. Bredella, M.D., professor of radiology at Harvard Medical School in Boston, Massachusetts, and vice-chair of the Department of Radiology at Massachusetts General Hospital in Boston. "Sleeve gastrectomy is the most common bariatric surgery procedure performed in children and adults."

In a sleeve gastrectomy, approximately 75% of the stomach is removed to restrict food intake and induce weight loss. It results in a typically round stomach tak...