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

Stress shielding

Grade 0

1

2

Grade 0

1

2

6

9

0

6^§

12

3

0

3

3

1

1

5

1^§

1

6

0

0

1