Table 4 Postoperative KSS-2011 Subscores and Correlations to FJS-12

I. Symptoms score

19.5 (5.7)

0.61

< 0.001

II. Satisfaction score

27.7 (8.3)

0.63

< 0.001

III. Expectation score

10.6 (3.1)

0.44

< 0.001

IV. Functional activities score

61.5 (21.3)

0.60

< 0.001

 i. Walking and standings

19.0 (9.3)

0.41

< 0.001

 ii. Standard activities

23.1 (5.6)

0.65

< 0.001

 iii. Advanced activities

11.3 (6.6)

0.48

< 0.001

 iv. Discretionary activities

8.1 (5,3)

0.45

< 0.001