Table 4 Predictors of different aspects of patient satisfaction after TKA on multivariate analysis or linear regression analysis

 Preoperative 1989 KSS knee score

0.035 (1.012, 1.059)

0.003

 Preoperative 1989 KSS function score

0.036 (1.016, 1.058)

<0.001

 Preoperative PCS

0.021 (1.031, 1.120)

0.001

 Preoperative MCS

0.021 (1.001, 1.087)

0.046

 Change 1989 KSS function score

0.033 (1.015, 1.053)

<0.001

 Change WOMAC pain score

0.040 (1.026, 1.056)

<0.001

 Change WOMAC function score

0.020 (1.000, 1.041)

0.045

 Change WOMAC pain score

−0.012 (−0.013, −0.010)

<0.001

 Preoperative 1989 KSS function score

−0.009 (−0.012, −0.007)

<0.001

 Change 1989 KSS function score

−0.006 (−0.009, −0.004)

<0.001

 2011 KSS expectation score

−0.058 (−0.068, −0.048)

<0.001