Study	Reason for exclusion
Aglietti 2005	Fixed bearing type had a posterior stabilised design
Ball 2011	Posterior stabilised implants
Bhan 2005	Posterior stabilised implants
Breeman 2013	Treatment of PCL dependents of individual surgeon’s preference (updated KAT trial)
Breugem 2008	Posterior stabilised implants
Chen 2013	Cruciate ligaments excised
Chiu 2001	Fixed bearing type had a posterior stabilised design
Gioe 2009	Posterior stabilised implants
Harrington 2009	Posterior stabilised and cruciate retaining implants used
Jawed 2012	Posterior cruciate ligament sacrificed in all cases
Jolles 2012	Posterior stabilised implants
KAT trial group 2009	Treatment of PCL dependents of individual surgeon’s preference
Kim 2007b	LCS stated as designed for implantation with resection of the PCL
Kim 2012	Posterior stabilised implants
Kim 2012b	LCS stated as designed for implantation with resection of the PCL
Li 2008	Posterior stabilised implants
Läderman 2008	Posterior stabilised implants
Matsuda 2010	Posterior stabilised implants
McGonagle 2012	Treatment of PCL dependents of individual surgeon’s preference
Munoz 2008	Posterior stabilised implants
NCT00289094	Included also other inflammatory arthritis and avascular necrosis of bone
Pagnano 2004	Posterior stabilised implants
Pijls 2012	Posterior stabilised implants
Rahman 2010	Posterior stabilised implants
Saari 2003	Treatment of PCL dependents of individual surgeon’s preference
Shemshaki 2012	Posterior stabilised implants
Tienboon 2012	Posterior stabilised implants
Uvehammer 2007	Treatment of PCL dependents of individual surgeon’s preference
Vasdev 2009	Posterior stabilised implants
Wohlrab 2009	Posterior stabilised implants
Woolson 2004	Posterior stabilised implants
Woolson 2011	Posterior stabilised implants
Wylde 2008	Mixture of patients who had had the posterior cruciate sacrificed and retained
Zeng 2011	Posterior stabilised implants