Patient-reported dissatisfaction following second side in staged bilateral total knee arthroplasty: A systematic review

Table 1 Study information, all studies included for analysis had a minimum follow-up of 1 year after each total knee arthroplasty

Ref.	Participants, n (weight %)	Male, n	Female, n	Mean age, range	Interval between TKAs, mo (range)	PROMs	Conclusions
Suzangar et al[4], 2019	1001 (53.0%)	459	542	68.7	25.6 (0.1-174.0)	Satisfaction	More dissatisfaction after TKA2
Clement et al[6], 2019	454 (24.0%)	219	235	68.0	16.8 (7.2-44.4)	Satisfaction, OKS	No difference between knees
Abram et al[5], 2016	250 (13.2%)	84	166	66.0	23.0 (2.0-74.0)	OKS, WOMAC	Lower TKA2 OKS
Scott et al[9], 2014	70 (3.7%)	29	41	71.7	7.8 (2.0-25.0)	Satisfaction, OKS	No difference between knees
Tucker et al[10], 2021	114 (6.0%)	31	83	66.5	16.2 (11.4-22.8)	OKS	Females less satisfied than males
Pooled	1889 (100.0%)	822 (43.5%)	1067 (56.5%)	68 (38 to 92)	21.9 (0.1-174.1)

Age reported in years. OKS: Oxford knee score; TKA1: First side total knee arthroplasty; TKA2: Second side total knee arthroplasty; WOMAC: Western Ontario and McMaster universities.