300 Longwood Avenue Boston, MA 02115 (617) 355-6000 Clinical Services (Spinal Program): Osteotomy An osteotomy is a surgical procedure where there is controlled breaking or cutting of the bone(s). A spinal osteotomy may be performed in cases where there is significant rigid deformity. In the case of a spinal osteotomy the surgeon will cut through the spinal bone(s) and realign it into the correct position. The information on this website should not be taken as medical advice, which can only be given to you by your personal health care professional. Copyright © Children's Hospital Boston. All rights reserved.