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 (0%), 3 (20%)

9 (60%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 2 (13%)

0 (0%), 0 (0%)

0 (0%), 4 (19%)

9 (43%), 0 (0%)

1 (5%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 2 (10%)

0 (0%), 0 (0%)

0 (0%), 1 (17%)

0 (0%), 0 (0%)

1 (17%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0, 2 (29%)

6 (86%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 2 (38%)

7 (100%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 1 (100%)

1 (100%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)

0 (0%), 0 (0%)