Mr Sethi specialises in all aspects of knee surgery and is one of the few surgeons who operate exclusively on the knee. In his NHS practice, he is the lead surgeon for knee and joint replacement surgery.
Mr Sethi qualified at University College London Medical School. His specialist orthopaedic training took place in Oswestry and Birmingham and he then went on to complete specialist knee fellowships in the UK and Australia.
Mr Sethi is actively involved with research and teaching both nationally and internationally. He collects data on the outcome of his surgery and registers his patients on the National Ligament Registry dedicated to analysing and improving the outcome of cruciate ligament reconstruction.