[1] Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON
[2] AO-Clinical Investigation, Zurich
[3] Osteosynthesis and Trauma Care Foundation, Nice
[4] Division of Orthopaedic Surgery, McMaster University, Hamilton, ON
[5] Department of Surgery and Biostatistics, McMaster University, Hamilton, ON L8L 8E7