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

Crowe’s Grade [9]

I

II

I

II

11 (52%)

4 (19%)

15 (71%)*

6 (%)

4 (67%)

2 (33%)

4 (50%)

3 (38%)

4 (50%)*

4 (50%)

0 (%)

1 (%)

Dorr’s Classification [10]

A

B

C

A

B

C

3/15 (20%)

11/15 (73%)

1/15 (7%)

5/21 (24%)^†

15/21 (71%)

1/21 (5%)

2/6 (33%)

4/6 (67%)

0/6 (0%)

0/7 (0%)

6/7 (86%)

1/7 (14%)

0/8 (0%)^†

6/8 (75%)

2/8 (25%)

0/1 (0%)

0/1 (0%)

1/1 (100%)