Affiliation: | 1.Tumor Unit, Orthopaedic Surgery and Traumatology, Hospital Universitari Vall d’Hebron,Universitat Autònoma de Barcelona,Barcelona,Spain;2.Paediatric Orthopaedics Unit, Orthopaedic Surgery and Traumatology, Hospital Universitari Vall d’Hebron,Universitat Autònoma de Barcelona,Barcelona,Spain;3.Orthopaedic Surgery and Traumatology,Hospital Donostia,San Sebastian,Spain;4.Radiology Department, Hospital Universitari Vall d’Hebron,Universitat Autònoma de Barcelona,Barcelona,Spain |