From Gillette Children's Specialty Healthcare, Saint Paul, MN (Dr. Laine and Dr. Novotny), the Department of Orthopaedic Surgery, University of Minnesota, Minneapolis, MN (Dr. Laine), the Rehabilitation Science Graduate Program, University of Minnesota, Minneapolis, MN (Dr. Novotny), the Department of Orthopaedic Surgery, John Hopkins School of Medicine, Baltimore, MD (Dr. Tis), the Division of Orthopaedic Surgery, Children's Hospital of Philadelphia, Philadelphia, PA (Dr. Sankar), the Division of Orthopaedic Surgery and Sports Medicine, Children's National Hospital, Washington, DC (Dr. Martin), Campbell Clinic Orthopedics (Dr. Kelly), the Department of Orthopedics and Biomechanical Engineering, University of Tennessee (Dr. Kelly), and Le Bonheur Children's Hospital (Dr. Kelly), Memphis, TN, Childrens of Alabama (Dr. Gilbert), and the Department of Orthopaedic Surgery, University of Alabama Birmingham (Dr. Gilbert), Birmingham, AL, the Department of Orthopaedics, Paediatric Orthopaedic Service, Kasturba Medical College, MAHE, Manipal, India (Dr. Shah), Aster Medcity, Kuttisahib Road, Cheranalloor, South Chittoor, Kochi, Kerala, India (Dr. Joseph), Center for Excellence in Hip Disorders, Scottish Rite for Children (Dr. Kim), and the Department of Orthopaedic Surgery, University of Texas Southwestern Medical Center (Dr. Kim), Dallas, TX.
Correspondence to Dr. Laine: [email protected]
This work was partially funded by three grants from the Pediatric Orthopaedic Society of North America. This work was also funded by Scottish Rite for Children and the Gillette Children's Foundation.
None of the following authors or any immediate family member has received anything of value from or has stock or stock options held in a commercial company or institution related directly or indirectly to the subject of this article: Dr. Laine, Dr. Novotny, Dr. Tis, Dr. Sankar, Dr. Martin, Dr. Kelly, Dr. Gilbert, Dr. Shah, Dr. Joseph, and Dr. Kim.
International Perthes Study Group: Fábio Ferri-de-Barros, Kishore Mulpuri, Eduardo N. Novais, Benjamin J. Shore, Charles T. Mehlman, Junichi Tamai, Phillip W. Mack, Ralf D. Stuecker, Tim Schrader, Mihir M. Thacker, Stephen B. Sundberg, Ludwig Meiss, Jeffrey I. Kessler, Joseph A. Janicki, Eric D. Fornari, Kevin E. Klingele, Jose A. Herrera, Virginia F. Casey, Vidyadhar V. Upasani, Theresa A. Hennessey, Jianping P. Yang, John A. Herring, Scott B. Rosenfeld, Paul D. Choi, Won Joon Yoo, Vedant Kulkarni, Barbara Behnke, Joshua E. Hyman, Molly Dempsey, Rebecca J.Dieckmann, Molly F. McGuire, Marek Synder, Roberto Guarniero, Patricia Moreno, Scott Yang, and Rachel Y. Goldstein.
