Funding for this research was provided by:
National Health and Medical Research Council (520004)
Received: 29 August 2018
Accepted: 8 January 2019
First Online: 23 February 2019
Ethics approval and consent to participate
: Ethics approval was obtained from The University of Melbourne Human Research Ethics Committee (Ethics ID 1443052). Permission to access the data used in this study was obtained from the Australian Orthopaedic Association National Joint Replacement Registry. Consent to participate was not required for this study as only de-identified data were used.
: Not applicable
: The authors declare that they have no competing interests.
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