Comparison of functional outcomes between single-radius and multi-radius femoral components in primary total knee arthroplasty: a meta-analysis of randomized controlled trials

Table 1 Characteristics and demographic data of included randomized controlled trials

Study	Year	Country	Number of patients	Number of knees	CR/PS	Brand of prosthesis (SR: MR)	SR	MR	Gender (M/F)		Average age (y)		Mean follow-up (mo)
Study	Year	Country	Number of patients	Number of knees	CR/PS	Brand of prosthesis (SR: MR)	SR	MR	SR	MR	SR	MR	Mean follow-up (mo)
Hall [14]	2008	USA	100	100	CR	Scorpio: PFC	50	50	n/s	n/s	69.5	72.6	12
Molt [24]	2012	Sweden	60	60	CR	Triathlon: Duracon	30	30	8/22	13/17	69	66	24
Jo [21]	2014	South Korea	100	100	CR	Scorpio: NexGen	50	50	6/44	9/41	66.4	67.5	36.8
Hamilton [20]	2015	UK	212	212	CR	Triathlon: Kinemax	108	104	46/62	35/69	69.3	68.8	36
Kim [22]	2015	South Korea	120	120	PS	Triathlon: PFC Sigma	60	60	n/s	n/s	67.2	67.2	12
Larsen [23]	2015	USA	32	32	PS	Triathlon: Vanguard	16	16	8/8	8/8	71.6	70.9	12
Collados-Maestre [19]	2017	Spain	237	237	CR	Trekking: Multigen	118	119	37/81	35/84	71.9	10.6	68.4
Wellman [26]	2017	USA	40	40	CR	Triathlon: NexGen	20	20	8/12	10/10	61.9	63.1	12
Mushtaq [25]	2018	UK	105	105	PS	Scorpio: AGC	51	54	n/s	n/s	n/s	n/s	12

SR single radius, MR multiple radius, M male, F female, n/s not stated, mo month, CR cruciate-ligament-retaining, PS posterior-cruciate-ligament-stabilized

ISSN: 2234-2451