Female-specific vs conventional knee prostheses after total knee arthroplasty: A meta-analysis

Table 1 Baseline characteristics of included trials

Study ID	Implant used		Sample size (knees)		Study design	Mean age (yr)		Follow-up (mo)	BMI (kg/m2)
	GSP	CP	GSP	CP		GSP	CP		GSP	CP
Kim et al[14]	Gender-specific CR- Flex	Standard CR- Flex	138	138	RCT	71.2	71.2	39	27.3	27.3
Kim et al[15]	Gender-specific LPS-Flex	Standard LPS-Flex	85	85	RCT	69.7	69.7	25.6	27.1	27.1
Tanavalee et al[16]	Gender-specific LPS-Flex	Standard LPS-Flex	165	149	CCT	70	70.5	24	23.4	23.5
Singh et al[17]	Gender-specific LPS High-Flex	Standard LPS-Flex	100	100	RCT	64	68	24	30.7	31.1
Song et al[18]	Gender Solutions	Standard CR- Flex	46	46	RCT	68.8	68.8	31.5	26.8	26.8
Lionberger et al[19]	Gender-specific CR or LPS-Flex	Standard CR- Flex	39	39	CCT	67.9	68.3	12	29.9	30
Thomsen et al[20]	Gender Solutions high-Flex	Standard LPS-Flex	22	22	RCT	66	66	13	29.3	29.3

GSP: Gender-specific prostheses; CP: Conventional prostheses; BMI: Body mass index; CR: Posterior cruciate retaining; LPS: Legacy posterior stabilized; RCT: Randomized controlled trial; CCT: Case control trial.