[1] Julius Maximilians Univ Wurzburg, Dept Orthoped, Konig Ludwig Haus, Brettreichstr 11, D-97074 Wurzburg, Germany
[2] Univ Med Ctr Wurzburg, Dept Trauma Hand Plast & Reconstruct Surg, Wurzburg, Germany
[3] VBG, German Statutory Accid Insurance Adm Sect, Dept Sports Injury Prevent, Hamburg, Germany
[4] Univ Wurzburg, Fac Med, Wurzburg, Germany