Mr Unnithan is a Consultant Orthopaedic surgeon with expertise in hip and knee arthroplasty including revision arthroplasty. He completed his specialist surgical training on the South-West London rotation during which time he completed a trauma fellowship in New Zealand. He has undertaken further sub-specialty training with fellowships at the Bristol hip unit and the Royal National Orthopaedic Hospital. He has published a number of papers in peer reviewed journals and presented at international meetings in Europe and the US. He was awarded first prize for his presentation at the British Trauma Society meeting in 2014. His specialist clinical interests include Total Hip replacements, Young Total Hip Replacements, Revision Hip replacements, Total Knee Replacements, Unicompartmental knee replacement, Osteotomies, Knee arthroscopy and meniscal repair.