Table 4.

Comparisons of revision and rerevision rates with published rates

Study	Primary THA	Revision THA	Primary TKA	Revision TKA
Australian Orthopaedic Association National Joint Replacement Registry [1]	2.0% (3 years); 2.7% (5 years)	*16.1% (3 years); 19.4% (5 years)	2.8% (3 years); 3.6% (5 years)	†15.8% (3 years); 19.8% (5 years)
Sheng et al. [30]	–	–	–	11% (5 years)
Sierra et al. [31]	–	–	–	16.1% (5 years); 26.0% (10 years); 31.4% (15 years)
Springer et al. [32]	–	18% (10 years)	–	–
Suarez et al. [33]	–	–	–	18% (12 years)
Current study	4.1% (5 years)	19.0% (5 years)	2.8% (5 years)	12.6% (5 years)

* These rates reflect minor revision: head and/or insert exchange; the rate for major THA involving replacement of the replacement of the stem and cup was 8.2% at 3 years; ^†reflect minor revision: patellar replacement and/or tibial insert exchange; the rate for major TKA involving the replacement of tibial and femoral components was 12.5% at 3 years.