[1] Berufsgenossenschaftliche Unfallklin, Inst Biomech, Murnau, Germany
[2] Paracelsus Med Univ Salzburg, Salzburg, Austria
[3] Univ Edinburgh, Dept Trauma & Orthopaed, Royal Infirm Edinburgh, 51 Little France Crescent,Old Dalkeith Rd, Edinburgh EH16 4SA, Midlothian, Scotland
[4] Univ Hosp Regensburg, Dept Trauma Surg, Franz Josef Strauss Allee 11, D-93053 Regensburg, Germany