Table 2.

Function of knee joints before and after total knee arthroplasty with ceramic femoral implants

Author, year	HSS		Knee Society knee score		Knee Society function score
	Pre-op	Post-op	Pre-op	Post-op	Pre-op	Post-op
Akagi, 2000 [19]	44.5	86.3	N/A	N/A	N/A	N/A
Koshino, 2002 [20]	N/A	N/A	41 ± 16	83 ± 14	29 ± 22	50 ± 29
Bal, 2006 [22]	N/A	N/A	39.9	92.3	42.3	69
Iida, 2012 [24]	N/A	N/A	14 ± 13	90 ± 10	47 ± 13	76 ± 22
Innocenti, 2014 [25]	N/A	N/A	36	84	37	83
Park, 2014 [26]	N/A	N/A	39 (0–70)	92 (31–100)	53 (0–90)	90 (35–100)
Bergschmidt, 2015 [27]	55.1 ± 11.5	85.6 ± 9.6	N/A	N/A	N/A	N/A
Bergschmidt, 2016 [28]	58.7 ± 12.7	88.5 ± 12.3	N/A	N/A	N/A	N/A
Meier, 2016 [29]	N/A	N/A	38.84 ± 15.75	93.66 ± 7.41	53.61 ± 18.45	95.47 ± 12.01
Nakamura, 2017 [30]	N/A	N/A	14 ± 13	89 ± 11	47 ± 13	68 ± 21
Nakamura, 2017 [30]	N/A	N/A	39.1 ± 17.9	92.8 ± 7.2	36.0 ± 19.1	47.0 ± 22.9

HSS Hospital for Special Surgery knee score. All data were presented as mean ± standard deviation, with range in bracket. N/A indicated the corresponding data were unavailable