1. Department of Trauma & Orthopaedics, John Radcliffe Hospital, Oxford, UK
2. Department of Trauma & Orthopaedics, Royal Berkshire Hospital, Reading, UK
3. Department of Trauma & Orthopaedics, Royal Cornwall Hospital, Truro, UK
4. Department of Trauma & Orthopaedics, Walsall Manor Hospital, Walsall, UK