1. South Australian Spinal Cord Injury Service, Hampstead Rehabilitation Centre, Lightsview, South Australia, Australia
2. Spinal Injuries Unit, Department of Orthopaedics and Trauma, Royal Adelaide Hospital, Adelaide, South Australia, Australia
3. The University of Adelaide, Adelaide, South Australia, Australia
4. Centre for Orthopaedics and Trauma Research, University of Adelaide, South Australia, Australia