Table 1 Anatomical parameters of the proximal humerus

3-D CT scans

 NSA₁ (°)

132.1 ± 4.4

131.4 ± 3.9

132.6 ± 4.8

−1.480

0.142

 TSH₁ (mm)

7.2 ± 2.3

7.7 ± 2.6

6.8 ± 2.1

2.010

0.047*

 HHT₁ (mm)

18.8 ± 2.2

20.1 ± 1.6

17.7 ± 2.0

7.040

<0.001*

 cASD₁ (mm)

44.2 ± 4.1

47.3 ± 2.3

41.7 ± 3.4

10.472

<0.001*

 aASD (mm)

40.4 ± 3.6

43.1 ± 2.2

38.2 ± 2.9

10.298

<0.001*

Radiographs

 NSA₂ (°)

133.0 ± 5.2

132.1 ± 5.6

133.7 ± 4.7

−1.696

0.092

 TSH₂ (mm)

10.0 ± 2.7

10.1 ± 3.0

9.7 ± 2.4

0.938

0.350

 HHT₂ (mm)

23.3 ± 2.3

24.4 ± 1.9

22.4 ± 2.1

5.415

<0.001*

 cASD₂ (mm)

46.4 ± 4.9

49.8 ± 4.0

43.6 ± 3.6

8.866

<0.001*