Table 3 Clinical and radiological evaluations at 2 years after TKA

Extension (°)

− 0.4 ± 1.8

− 0.6 ± 1.6

n.s.

Flexion (°)

118.9 ± 9.0

120.5 ± 8.2

n.s.

KS knee score

91.4 ± 3.8

91.5 ± 2.3

n.s.

KS function score

80.2 ± 12.7

81.8 ± 10.9

n.s.

RLL measurement (mm)

 Medial

1.1 ± 1.0

0.5 ± 0.6

< 0.001

 Lateral

0.7 ± 1.0

0.2 ± 0.5

0.004

 Anterior

0.5 ± 0.7

0.1 ± 0.3

< 0.001

 Posterior

0.4 ± 0.7

0.0 ± 0.2

< 0.001

RLL > 2 mm (knees)

 Medial

19

2

< 0.001

 Lateral

11

0

0.006

 Anterior

5

0

0.048

 Posterior

3

0

n.s.

RLL >2 mm (knees) (%)

18 (38.3%)

2 (3.8%)

< 0.001