1. Radiotherapy Department, ICANS, 17 Rue Albert Calmette, 67100 Strasbourg, France
2. Radiotherapy Department, Léon Bérard Center, 28 Rue Laennec, 69008 Lyon, France
3. Orthopedic Surgery Department, University Hospital of Hautepierre, 1 Rue Molière, 67200 Strasbourg, France