Table 2 Inferior glenohumeral translation during external (ER) and internal (IR) rotation. Abbreviations: IQR = interquartile range; SD = standard deviation

0°

Native

mean ± SD

4.6 ± 3.7

0.8 ± 1.2

median

4.4

0.4

IQR

6.4

0.8

Elliptical

mean ± SD

3.0 ± 3.4

0.5 ± 1.4

median

2.4

0.2

IQR

4.0

0.8

Sphere

mean ± SD

3.2 ± 2.9

0.5 ± 1.0

median

2.5

0.4

IQR

3.4

0.4

30°

Native

mean ± SD

3.0 ± 2.8

0.7 ± 1.2

median

2.3

0.5

IQR

2.1

0.8

Elliptical

mean ± SD

2.8 ± 2.6

0.3 ± 0.6

median

2.7

0.3

IQR

3.4

0.6

Sphere

mean ± SD

3.0 ± 3.0

0.5 ± 0.7

median

2.2

0.5

IQR

3.4

1.2

45°

Native

mean ± SD

2.6 ± 2.8

1.1 ± 1.7

median

1.5

0.3

IQR

0.9

0.7

Elliptical

mean ± SD

2.7 ± 3.2

0.8 ± 1.0

median

1.5

0.7

IQR

5.7

1.3

Sphere

mean ± SD

2.6 ± 3.0

0.9 ± 1.1

median

1.7

0.9

IQR

3.9

2.0

60°

Native

mean ± SD

2.4 ± 2.7

0.8 ± 1.5

median

1.7

0.1

IQR

2.8

2.0

Elliptical

mean ± SD

2.5 ± 3.2

0.9 ± 1.0

median

1.5

0.7

IQR

3.5

1.6

Sphere

mean ± SD

2.9 ± 3.6

1.0 ± 1.2

median

1.5

0.7

IQR

4.0

2.2