Better outcomes and reduced failures for arthroplasty over osteotomy for advanced compartmental knee osteoarthritis in patients older than 50 years

Table 1 Generalities and demographic data of included studies

Author, year	Type of study	Follow-up (months)	Type of procedure	Number of knees	Female (%)	Mean age	Mean BMI	Type of implant
Jeon et al., 2017 [34]	RCS	24	OWHTO	26	84.60	56.8	26.6	TomoFix (DePuy Synthes)
Jeon et al., 2017 [34]	RCS	24	CKA	21	80.90	60.7	26.1	High Flex (Zimmer)
Krych et al., 2017 [35]	RCS	84.00	OWHTO	30	28.30	48.0	31.9	Not specified
Krych et al., 2017 [35]	RCS	84.00	CKA	133	55.20	47.0	32.5	Miller-Galante (Zimmer)
Petersen et al., 2016 [36]	RCS	60	OWHTO	13	39.10	58.9	23.0	TomoFix (DePuy Synthes)
Petersen et al., 2016 [36]	RCS	60	CKA	25	64.00	60.7	25.0	Oxford III implant
Ryu et al., 2018 [37]	RCS	36.55	OWHTO	23	91.30	57.6	27.7	ChronOS vivify spacer + TomoFix (DePuy Synthes)
Ryu et al., 2018 [37]	RCS	36.55	CKA	22	86.50	60.5	25.4	Sigma unicompartmental knee (DePuy)
Stukenborg-Colsman et al., 2001 [38]	RCT	90	OWHTO	32	40.60	67.0		Five-hole-two-thirds tubular plate and a cortical screw
Stukenborg-Colsman et al., 2001 [38]	RCT	90	CKA	30	78.60	67.0		Unicondylar knee sliding (Aesculap)
Takeuchi et al., 2010 [39]	RCS	72.5	OWHTO	27	75.00	67.0		TomoFix (DePuy Synthes)
Takeuchi et al., 2010 [39]	RCS	72.5	CKA	30	47.10	77.0		Uni-Knee (Nakashima Propeller Co)
Yim et al., 2013 [40]	RCS	43.8	OWHTO	58	96.00	58.3		2 wedge plates (Aesculap)
Yim et al., 2013 [40]	RCS	43.8	CKA	50	87.90	60.3		Miller-Galante (Zimmer)

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