Alister Hart is a consultant orthopaedic surgeon and professor of orthopaedic surgery at University College London (UCL) and the Royal National Orthopaedic Hospital (RNOH). He is head of clinical research in orthopaedics at UCL and the director of research and development at the RNOH. He studied medicine at Caius College Cambridge (q 1994), trained on the RNOH surgical rotation. In 2006 he was appointed Clinical Senior Lecturer and Consultant Orthopaedic Surgeon at Imperial College London. In 2012 he was appointed to his present position.

His surgical and research interests focus on the achievement of the best possible patient and radiological outcomes after hip replacement, through implant design, surgical positioning and patient factors. This includes the developing area of clinical biocompatibility. He is a co-director, with John Skinner, of the London Implant Retrieval Centre.

He has raised £4 million in grants, published more than 50 papers, and performed more than 3000 operations including 750 primary or revision hip and knee replacements. He has reviewed for 6 journals and 4 grant bodies. He teaches on aspects of hip surgery to surgeons of all grades, including orthopaedic basic sciences, patient assessment using clinical examination and imaging, patient management and surgical technique.