Affiliation: | 1. Univ Dusseldorf, Medical Faculty, Department of Orthopedic Surgery, D‐40225 Dusseldorf, Germany;2. Univ Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D‐40225 Dusseldorf, Germany;3. Department of Orthopedic Surgery, The Children's Hospital Boston, Boston, Massachusetts USA;4. Univ of Essen, Medical Faculty, Department of Orthopedic Surgery, D‐40225 Essen, Germany;5. Department of Orthopedic Surgery, Radys Childrens Hospital San Diego, USA |