Dr Marel is an orthopaedic surgeon who specialises entirely in hip and knee replacement surgery, he has operated at North Shore Private Hospital since it opened in 1998.
After completing his medical degree from the University of Sydney he did orthopaedic surgery specialist training in Sydney as well as in London and the USA, with fellowships in hip replacement and pelvic fracture surgery. Dr Marel was a founding member of the Arthroplasty Society of Australia (hip and knee joint replacement surgeons) in 1993 and was president of the society from 1999 to 2001. He was an examiner for the Royal Australasian College of Surgery for its final orthopaedic qualification from 2004 to 2012 and was chairman of the National Joint Replacement Registry from 2011 to 2015. The world renowned Registry, set up by the Australian Orthopaedic Association, keeps details and measures outcomes of all joint replacement procedures in Australia, giving information to surgeons patients hospitals and governments leading to a continual improvement in outcomes for patients.
Dr Marel has a special interest in the orientation of components in Total Hip Replacement surgery and dislocation, presenting at the American Academy of Orthopaedic Surgeons in 1993 and 1994 and was one of the designers of the Optimized Ortho system of analysis which was developed by an Australian start-up company later bought by Corin. Dr Marel is involved in research and has numerous publications and is a frequently invited speaker at joint replacement meetings in Australia and internationally. He was a founding director of the Peninsula Orthopaedic Research Institute and helps train young orthopaedic surgeons through a fellowship in reconstructive surgery.
Dr Marel operates at North Shore Private, Delmar and Bathurst Private Hospitals. He sees patients at Peninsula Orthopaedics Dee Why and at Charles Sturt University in Bathurst.