Christina Esposito was born and raised in Los Angeles, California. Christina first started in medical research with Dr Pat Campbell at the Implant Retrieval Laboratory in Orthopaedic Hospital in Los Angeles during her university years. After graduation, Christina spent three years in Dr Campbell’s lab analysing retrieved hip replacements, specifically metal-on-metal hip resurfacings. Christina was involved in studies on particle isolation and characterization, histological review of joint tissues, and metal ion studies. In 2008 Christina moved to Sydney to continue doing Orthopaedic research with Dr William L. Walter. She is responsible for coordinating research studies and organizing the implant retrieval laboratory. The laboratory in Sydney has a large collection of ceramic-on-ceramic hip replacements, which Christina is studying as part of a higher degree in research. Christina is a Ph.D. student in Medicine at the University of New South Wales under the supervision of Dr William L. Walter, Dr William R. Walsh and Dr Pat Campbell.