Table 4 Postoperative KSS in two groups

Extension group (40)

48.76 ± 7.88

56.33 ± 6.29

89.23 ± 5.75

82.92 ± 9.57

90.56 ± 6.88

88.67 ± 7.85

Flexion group (40)

49.11 ± 10.39

58.96 ± 8.69

90.34 ± 5.85

85.63 ± 7.26

91.19 ± 6.31

92.46 ± 7.34

t

0.07

2.48

−0.77

0.64

2.11

715.5

P

0.92

0.81

0.43

0.57

0.37

0.67