aLyell McEwin Hospital, Elizabeth Vale, South Australia, Australia
bDepartment of Orthopaedic Surgery, Lyell McEwin Hospital, Elizabeth Vale, South Australia, Australia
cDiscipline of Medical Specialties, University of Adelaide, Adelaide, South Australia, Australia
dSouth Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia
eDepartment of Surgery, Epworth Healthcare, University of Melbourne, Melbourne, Australia
fAustralian Orthopaedic Association National Joint Replacement Registry, Adelaide, South Australia, Australia
∗Corresponding author. Alice Springs Hospital, 6 Gap Road, The Gap, Alice Springs, Northern Territory 0870, Australia. ernest.lourens@sa.gov.au