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Table 8 Association between clinical stage according to MRI finding (n = 70)

From: Shoulder adhesive capsulitis: can clinical data correlate with fat-suppressed T2 weighted MRI findings?

MRI finding Stage group Test value p-value
Stage 1 (n = 17) Stage 2 (n = 27) Stage 3 and 4 (n = 26)
Qualitative findings      
Capsular edema      
Glenoid      
Absent 8 (47.1%) 14 (51.9%) 21 (80.8%) x2: 6.631 0.036*
Present 9 (52.9%) 13 (48.1%) 5 (19.2%)
Humeral      
Absent 8 (47.1%) 10 (37.0%) 21 (80.8%) x2: 10.949 0.004*
Present 9 (52.9%) 17 (63.0%) 5 (19.2%)
Extra capsular edema      
Anterior      
Absent 10 (58.8%) 14 (51.9%) 21 (80.8%) x2: 5.116 0.077
Present 7 (41.2%) 13 (48.1%) 5 (19.2%)
Posterior      
Absent 12 (70.6%) 16 (59.3%) 21 (80.8%) x2: 2.922 0.232
Present 5 (29.4%) 11 (40.7%) 5 (19.2%)
Obliteration of subcoracoid fat triangle      
Absent 15 (88.2%) 7 (25.9%) 13 (50.0%) FE: 16.496 0.002*
Partial obliteration 0 (0.0%) 4 (14.8%) 2 (7.7%)
Complete obliteration 2 (11.8%) 16 (59.3%) 11 (42.3%)
Effusion of biceps tendon sheath      
Absent 2 (11.8%) 7 (25.9%) 13 (50.0%) x2: 7.590 0.022*
Present 15 (88.2%) 20 (74.1%) 13 (50.0%)
Quantitative findings      
Capsular thickening      
Glenoid (mm)      
Mean ± SD 5.45 ± 1.39 6.04 ± 1.39 5.92 ± 1.04 F: 1.187 0.312
Range 2.87–8 3–7.7 4–7.6
Humeral (mm)      
Mean ± SD 5.61 ± 2.00 4.65 ± 1.47 4.27 ± 1.90 F: 3.705 0.019*
Range 2.5–8.8 2–7 1.5–9.03
Axillary recess      
Height (mm)      
Mean ± SD 7.86 ± 2.21 6.63 ± 2.92 5.64 ± 2.11 F: 2.683 0.005*
Range 5.2–11.6 3.49–13.5 3.2–10
Width (mm)      
Mean ± SD 3.05 ± 1.83 2.24 ± 0.94 1.95 ± 0.77 F: 2.024 0.019*
Range 1.2–6.8 1.1–3.5 0.9–2.7
  1. Using: F: one way analysis of variance; x2: Chi-square test; Fisher’s exact test
  2. p-value > 0.05 NS; *p-value < 0.05 S