1. Nottingham University Hospitals NHS Trust, Nottingham, UK
2. South West London Elective Orthopaedic Centre, London, UK
3. St George's Hospital, London, UK
4. University College London Hospitals, and The NIHR Biomedical Research Centre at UCLH, London, UK
5. The Bone & Joint Journal
, London, UK
6. Princess Grace Hospital, London, UK