1. Department of Surgery, McMaster University, Division of Orthopaedics, HGH 8N06, 237 Barton Street East, Hamilton, ON, L8L 2X2, Canada
2. Michael G. Degroote School of Medicine, 1280 Main St. W., Hamilton, ON, L8S 4K1, Canada
3. Department of Surgery, McMaster University, Division of Orthopaedics, 293 Wellington St N, Suite 110, Hamilton ON, L8L 8E7, Canada
4. Department of Surgery, Juravinski Cancer Centre, McMaster University, Division of Orthopaedics, 711 Concession Street, Level B3 Surgical offices, Hamilton, Ontario, L8V 1C3, Canada