Trauma and orthopaedic surgery (T&O) has the largest number of trainees of any individual surgical specialty in the UK. It is a craft-based specialty, with 'hands-on' training, based on an apprenticeship model involving operative and procedural skills. In 1992 Kenneth Calman, then Chief Medical Officer, set up a working group to reform the specialist curriculum, placing more emphasis on structured teaching, supervised learning and surgical experience.