Table 2 Pre- and post-operative rotational laxity

Internal rotation

30

9.7 (6.7)

11.1 (6.9)

0.01*

10.1 (7.0)

12.0 (6.9)

0.02*

9.1 (6.2)

9.9 (6.9)

0.3

0.8

0.3

45

10.6 (6.7)

11.6 (6.8)

0.04*

11.2 (7.1)

13.0 (7.1)

0.007*

9.8 (6.0)

9.8 (5.9)

0.9

0.5

0.08

60

11.2 (6.5)

12.9 (6.5)

0.001*

12.0 (6.7)

14.3 (6.8)

0.0007*

10.2 (6.1)

10.8 (5.7)

0.4

0.5

0.06

90

13.2 (6.8)

14.9 (6.4)

0.008*

14.3 (6.8)

15.5 (6.8)

0.08

11.6 (6.7)

14.0 (6.8)

0.0002*

0.2

0.3

External rotation

30

10.8 (6.4)

6.8 (6.1)

< 0.0001*

11.1 (5.9)

7.4 (6.3)

< 0.0001*

10.3 (7.1)

5.9 (6.1)

< 0.0001*

0.8

0.4

45

12.5 (5.7)

9.4 (5.8)

< 0.0001*

12.5 (5.6)

9.7 (5.8)

0.0004*

12.4 (6.0)

8.9 (6.0)

0.0001*

0.9

0.7

60

12.8 (5.5)

10.0 (5.3)

< 0.0001*

12.9 (5.2)

10.1 (5.2)

0.0002*

12.7 (6.0)

10.0 (5.5)

0.005*

0.9

0.8

90

11.3 (5.3)

9.5 (5.0)

0.0008*

11.5 (5.2)

9.5 (5.0)

0.002*

10.9 (5.6)

9.7 (5.1)

0.1

0.7

0.8

Total rotation

30

20.4 (6.1)

17.9 (5.8)

0.002*

21.2 (6.2)

19.3 (5.9)

0.1

19.4 (5.8)

15.8 (5.1)

0.003*

0.2

0.03**

45

23.1 (6.0)

21.1 (6.0)

0.04*

23.7 (6.3)

22.8 (6.1)

0.6

22.2 (5.6)

18.7 (5.1)

0.003*

0.4

0.03**

60

24.1 (6.3)

22.9 (5.9)

0.4

24.9 (6.3)

24.4 (5.9)

0.9

22.9 (6.2)

20.8 (5.2)

0.2

0.3

0.02**

90

24.4 (7.2)

24.5 (6.1)

0.6

25.8 (6.9)

25.0 (6.0)

0.8

22.4 (7.2)

23.7 (6.4)

0.2

0.1

0.5