Unicompartmental knee arthroplasty, is it superior to high tibial osteotomy in treating unicompartmental osteoarthritis? A meta-analysis and systemic review

Table 1 Description of studies included in the meta-analysis

Author	Year	Type of study	Type	Pts	Knee	M/F	Age (years)	HTO type/ UKA model	Follow-up
Karpman et al. [8]	1982	Retrospective	HTO	21	23	18/3	57	CWHTO	2 years
			UKA	19	21	15/4	62	NS	3 years
Broughton et al. [9]	1986	Retrospective	HTO	45	49	11/38	71	CWHTO	7.8 years
			UKA	34	42	11/31	63	St Georg	5.8 years
Jefferson RJ et al.	1989	Prospective	HTO	20	23	NS	57	CWHTO	NS
[10]			UKA	20	24	NS	65	Oxford	NS
Ivarsson et al. [5]	1991	Prospective	HTO	10	10	4/6	62	CWHTO	1 year
		Randomized	UKA	10	10	4/6	64	Oxford/PCA	0.5 years
Weale et al. [11]	1994	Retrospective	HTO	21	21	NS	74	CWHTO	12–17 years
			UKA	15	15	NS	80	St Georg	12–17 years
Stukenborg et al.	2001	Prospective	HTO	32	32	19/13	67	CWHTO	7.5 years
[12]		Randomized	UKA	28	30	6/22	67	Aesculap	7.5 years
Borjesson et al.[13]	2004	Prospective	HTO	18	18	10/8	63	CWHTO	5 years
		Randomized	UKA	22	22	11/11	63	Brigham	5 years
Dettoni et al. [14]	2008	Prospective	HTO	54		NS	NS	OWHTO	2–4 years
			UKA	56		NS	NS	Accuris	2–4 years
Takeuchi et al. [15]	2010	Retrospective	HTO	24	27	6/18	67	OWHTO	5.1 years
			UKA	18	30	4/14	77	Nakashima	7 years
Dahl-W et al. [16]	2010	Registry	HTO	450		NS	NS	Hemicallotasis	NS
		Review	UKA	4799		NS	NS	Many	NS
Yim JH et al. [17]	2012	Retrospective	HTO	58	58	7/51	58.3	OWHTO	3.6 years
			UKA	50	50	2/48	60.3	Miller-Galante	3.7 years
S Karamitev et al.	2014	Retrospective	HTO	92	103	47/45	NS	NS	NS
[18]			UKA	65	66	23/42	NS	NS	NS
Tuncay et al. [19]	2015	Retrospective	HTO	88	93	18/70	52.6	OWHTO + Dome	3 years
			UKA	94	109	15/79	58.7	Oxford	3.5 years
Petersen et al. [20]	2016	Retrospective	HTO	23	23	14/9	58.9	OWHTO	5 years
			UKA	25	25	9/16	60.7	Oxford III	5 years
AJ Krych et al. [21]	2017	Retrospective	HTO UKA	57 183	57 183	41/16 82/101	42.7 49.2	OWHTO + CWHTO Miller–Galante	7.2 years 5.8 years

year year of publication, Type procedure type, Pts patients, Knee number of operated knee, M/F male/female, HTO high tibial osteotomy, UKA unicompartmental knee arthroplasty, CWHTO close-wedge high tibial osteotomy, OWHTO open-wedge high tibial osteotomy, PCA porous coated anatomic implant, NS not stated

ISSN: 1749-799X