Table 1 Comparison between cases and controls

Sex

 Male

17 (60.7)

14 (50)

0.420

 Female

11 (39.3)

14 (50)

Age

45.61 ± 11.95

47.25 ± 8.97

0.431

Quantitative assessment

 Anterior capsule thickness

4.02 ± 0.92

1.72 ± 0.55

0.000

 Maximal axillary capsule thickness

4.06 ± 0.96

2.79 ± 0.58

0.000

 Humeral capsular thickness

3 ± 1.27

2.1 ± 0.47

0.000

 Glenoid capsular thickness

3.94 ± 1.01

2.71 ± 0.62

0.000

 Coracohumeral ligament thickness

3.16 ± 0.72

2.33 ± 0.6

0.000

 Degree of external rotation

119.62 ± 18.05

152.25 ± 5.98

0.000

Qualitative assessment

 Anterior capsular abnormal hyperintensity

21 (75)

12 (42.9)

0.014

 Axillary capsular abnormal hyperintensity

21 (75)

6 (21.4)

0.000

 Humeral capsular abnormal hyperintensity

18 (64.3)

12 (42.9)

0.108

 Glenoid capsular abnormal hyperintensity

16 (57.1)

3 (10.7)

0.000

 Abnormal hyperintensity at subcoracoid fat triangle

19 (67.9)

14 (50)

0.174

 Obliteration of the subcoracoid fat triangle

19 (67.9)

22 (78.6)

0.365