Mr Parnell has been a Consultant Orthopaedic and Trauma Surgeon locally for the past 24 years. He is one of the Senior Surgeons at the local Brighton and Sussex University Hospital Trust.His specialist interests include hip and knee replacements, revision knee surgery for failed knee replacements, soft tissue surgery for the hip and knee including acute injuries to the knee. Hes also particularly interested in conditions affecting the patellofemoral part of the knee joint.