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