Stem

alignment

Varus-flexion N = 15

AP varus N = 21

Varus-neutral N = 6

Neutral-flexion N = 7

AP neutral N = 8

Neutral-neutral N = 1

Zone 1, 2

3, 4

5, 6

7, 8

9, 10

11, 12

13, 14

Zone 1, 2

3, 4

5, 6

7, 8

9 ,10

11, 12

13, 14

0, 1 (5%),

0, 8 (53%)

2 (13%), 0 (0%)

1 (5%), 1 (7%)

0 (0%), 7 (47%)

0 (0%), 1 (5%)

0 (0%), 1 (5%)

0 (0%), 1 (5%)

5 (24%), 12 (57%)

6 (29%), 0 (0%)

1 (5%), 1 (5%)

0 (0%), 7 (33%)

0 (0%), 4 (19%)

0 (0%), 1 (5%)

0 (0%), 0 (0%)

5 (83%), 4 (67%)

4 (67%), 3 (50%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 3 (50%)

0 (0%), 0 (0%)

0 (0%), 1 (14%)

4 (57%), 1 (14%)

0 (0%), 0 (0%)

0 (13%), 1 (14%)

0 (0%), 3 (43%)

2 (29%), 1 (14%)

0 (0%), 1 (14%)

0 (0%), 1 (13%)

4 (50%), 2 (25%)

0 (0%), 0 (0%)

1 (13%), 1 (13%)

0 (0%), 4 (50%)

3 (38%), 2 (25%)

0 (0%), 1 (13%)

0 (0%), 0 (0%)

0 (0%), 1 (100%)

0 (0%), 0 (0%)

1 (100%), 0 (0%)

0 (0%), 1 (100%),

1 (100%), 1 (100%)

0 (0%), 0 (0%)