Dr Molnar studied medicine at the University of New south Wales, graduating in 1995. He completed his orthopaedic training in Orthopaedic Trauma at Harborview Medical Centre in Seattle, USA. Dr Molnar went on to complete fellowship training in lower extremity reconstructive surgery in hip and knee arthroplasty and arthroscopy.
He specialises in pelvic and lower extremity trauma and his special interests are hip and knee reconstructive procedures and replacements using minimally invasive techniques combined with computer navigation.
He operates at St George, Sutherland and Westmead Public Hospitals as well as St George & Westmead Private Hospitals.