Mr Longstaff attended medical school at Cambridge University and graduated with First Class honours and a distinction in surgery. Post-graduate orthopaedic training was commenced at Addenbrooke's hospital, Cambridge and completed in Newcastle Upon Tyne. An additional 18 months of advanced surgical training was then undertaken in Melbourne and Perth, Australia where he developed a special interest and expertise in hip and knee replacement. Mr Longstaff was appointed Consultant Orthopaedic Surgeon at the County Durham & Darlington NHS Foundation trust in 2005. In addition to lower limb arthroplasty, he also delivers general trauma care to children and adults with a particular interest in periprosthetic fracture management. His research activities lie in the fields of trauma, hip and knee replacement and kinematics. He is an associate Clinical Lecturer in the Institute of Cellular Medicine at the University of Newcastle upon Tyne. A keen educator, he has been appointed Royal College surgical tutor and Intercollegiate MRCS examiner.