作者单位:Department of Orthopedics, Shriners Hospital for Children, Philadelphia, PA, United States[1]Department of Orthopedics, Rady Children's Hospital, 3030 Children's Way, San Diego, CA 92123[2]Scoliosis Associates, New York, NY, United States[3]Department of Orthopedics, Nemours Children's Clinic, Wilmington, DE, United States[4]Department of Orthopedics, BC Childrens Hospital, Vancouver, BC, Canada[5]