Table 2 Descriptive statistics using interquartile range (IQR) analysis for stem design profile

Collo diaphyseal angle (^o)

126.67

132.78

6.11

130.68 ± 1.68

126.68

132.78

6.10

Femoral head offset (mm)

27.29

33.09

5.80

30.55 ± 1.53

27.30

33.06

5.76

Femoral head position (mm)

48.56

57.15

8.59

52.72 ± 2.45

48.76

57.12

8.36

Medial cortex radius (mm)

50.19

95.35

45.16

65.84 ± 13.61

50.50

95.20

44.70

Lateral cortex radius (mm)

52.56

95.95

43.39

74.07 ± 10.17

52.95

95.47

42.52

Medial tapered angle (º)

1.14

4.36

3.22

3.74 ± 3.40

0.47

12.80

12.33

Lateral tapered angle (º)

14.70

19.00

4.30

16.78 ± 1.24

14.76

18.84

4.08

AP T + 20 width (mm)

28.66

32.95

4.29

31.12 ± 3.70

26.05

43.90

17.85

ML T + 20 width (mm)

40.92

47.41

6.49

44.05 ± 4.59

33.83

53.47

19.64

AP T-10 width (mm)

18.44

22.33

3.89

19.99 ± 0.98

18.53

22.20

3.67

ML T-10 width (mm)

20.13

24.67

4.54

22.35 ± 2.97

15.77

29.43

13.66

AP T-40 width (mm)

11.71

15.55

3.84

13.41 ± 1.02

11.80

15.54

3.74

ML T-40 width (mm)

12.13

14.84

2.71

13.73 ± 3.11

9.19

19.29

10.10

Isthmus position (mm)

100.00

120.00

20.00

112.86 ± 8.42

100.00

120.00

20.00

AP Isthmus width (mm)

10.95

14.51

3.56

13.23 ± 3.36

9.01

21.10

12.10

ML Isthmus width (mm)

8.29

10.89

2.60

9.58 ± 0.82

8.32

10.87

2.55