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1 1Department of Orthopaedic Surgery and Traumatology, University Hospitals of Geneva, Geneva, Switzerland 2Department for Orthopedic and Trauma Surgery, Catholic St. Vincenz and Elisabeth Hospital Mainz, Mainz, Germany 3Department of Orthopaedics, Medical University of Vienna, Vienna, Austria 4Department of Orthopaedics, University Hospital of Düsseldorf, Düsseldorf, Germany.
1 1Department of Orthopaedic Surgery and Traumatology, University Hospitals of Geneva, Geneva, Switzerland 2Department for Orthopedic and Trauma Surgery, Catholic St. Vincenz and Elisabeth Hospital Mainz, Mainz, Germany 3Department of Orthopaedics, Medical University of Vienna, Vienna, Austria 4Department of Orthopaedics, University Hospital of Düsseldorf, Düsseldorf, Germany.