1. Department of Orthopaedics and Rehabilitation, Robert Larner College of Medicine, University of Vermont; Orthopaedic Surgeon, University of Vermont Medical Center, Burlington, Vermont, USA.
2. Fiona Stanley Hospital Group and Orthopaedics Western Australia; Senior Research Fellow, Curtin University, Western Australia; Senior Clinical Lecturer, University of Sydney, Sydney, Australia.
3. Orthopaedics and Traumatic Surgery, University of Sydney, Sydney, Australia, Royal North Shore Hospital, Sydney, Australia; Mater Hospital, Sydney, Australia.
4. Monash University, Melbourne, Melbourne Orthopaedic Group, Melbourne, Australia.