1. Department of Orthopaedic Surgery, Sports Medicine and Shoulder Service, Hospital for Special Surgery, New York, NY, USA
2. Trauma Department, Hannover Medical School, Hannover, Germany
3. Helios ENDO-Klinik Hamburg, Hamburg, Germany
4. Department of Orthopaedic Surgery, Hand and Upper Extremity Service, Hospital for Special Surgery, New York, NY, USA