Implant survivorship, functional outcomes and complications with the use of rotating hinge knee implants: a systematic review

Table 3 Assessment of methodological quality of included studies

Author	Year	Inclusion of consecutive patients	Representativeness (multi-center)	Adequate follow-up of > 80% (follow-up%)	Minimisation of confounding (multivariate analysis)
Revision cases
Rodriguez	2015	–	No	Yes	No
Neumann	2011	Yes	No	Yes	No
Gudnason	2011	Yes	No	No	No
Pradham	2004	–	No	Yes	No
Bistolfi	2013	–	No	No	No
Barrack	2000	Yes	No	Yes	No
Abdelaziz	2019	–	No	Yes	No
Back	2008	Yes	No	Yes	No
Baier	2013	Yes	No	Yes	No
Bistolfi	2012	Yes	No	–	No
Joshi	2008	Yes	No	Yes	No
Pour	2007	–	No	Yes	No
Primary cases
Yang	2011	No	No	Yes	No
Rahman	2015	Yes	No	Yes	No
Lozano	2012	Yes	No	Yes	No
Kowalczewski	2014	Yes	No	Yes	No
Petrou	2006	No	No	Yes	No
Bistolfi 2	2013	–	No	No	No
Leng	2018	Yes	No	Yes	No

ISSN: 2234-2451