1. Department of Trauma and Orthopaedics, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, UK
2. Department of Trauma and Orthopaedics, The Shrewsbury and Telford Hospital NHS Trust, The Princess Royal Hospital, Telford, UK
3. Department of Trauma and Orthopaedics, Royal Shrewsbury Hospital, Shrewsbury, UK