1. MSc. Orth., FRCS Ed.; Specialist Registrar in Orthopaedics; Orthopaedic Department St. James University Hospital, Leeds, UK;
2. MD, MCh. Orth., FRCS Ed. Consultant Orthopaedic Surgeon, Orthopaedic Department, Darlington Memorial Hospital, Darlington, UK Darlington Memorial Hospital; Darlington; DL3 6HX United Kingdom
3. Orthopaedic Senior House Officer Orthopaedic Department, Darlington Memorial Hospital, Darlington, UK