Table 6 Association between limitation of ROM “abduction” according to MRI finding (n = 70)
MRI finding | Limitation of ROM (Abduction) | Test value | p-value | |
|---|---|---|---|---|
Absent (n = 41) | Present (n = 29) | |||
Qualitative findings | ||||
Capsular edema | ||||
Glenoid | ||||
Absent | 23 (56.1%) | 20 (69.0%) | x2: 1.187 | 0.276 |
Present | 18 (43.9%) | 9 (31.0%) | ||
Humeral | ||||
Absent | 21 (51.2%) | 18 (62.1%) | x2: 0.810 | 0.368 |
Present | 20 (48.8%) | 11 (37.9%) | ||
Extra capsular edema | ||||
Anterior | ||||
Absent | 21 (51.2%) | 24 (82.8%) | x2: 6.050 | 0.014* |
Present | 20 (48.8%) | 5 (17.2%) | ||
Posterior | ||||
Absent | 27 (65.9%) | 22 (75.9%) | x2: 0.810 | 0.368 |
Present | 14 (34.1%) | 7 (24.1%) | ||
Obliteration of subcoracoid fat triangle | ||||
Absent | 24 (58.5%) | 11 (37.9%) | FE: 3.862 | 0.145 |
Partial obliteration | 4 (9.8%) | 2 (6.9%) | ||
Complete obliteration | 13 (31.7%) | 16 (55.2%) | ||
Effusion of biceps tendon sheath | ||||
Absent | 12 (29.3%) | 10 (34.5%) | x2: 0.214 | 0.643 |
Present | 29 (70.7%) | 19 (65.5%) | ||
Quantitative findings | ||||
Capsular thickening | ||||
Glenoid (mm) | ||||
Mean ± SD | 6.29 ± 0.99 | 5.21 ± 1.39 | t: 4.110 | < 0.001** |
Range | 3.9–8 | 2.87–7.6 | ||
Humeral (mm) | ||||
Mean ± SD | 4.99 ± 1.75 | 5.29 ± 1.86 | t: 0.460 | 0.500 |
Range | 2–8.8 | 1.5–9.03 | ||
Axillary recess | ||||
Height (mm) | ||||
Mean ± SD | 7.23 ± 2.56 | 6.06 ± 2.35 | t: 1.940 | 0.060 |
Range | 3.49–13.5 | 3.2–10.6 | ||
Width (mm) | ||||
Mean ± SD | 2.35 ± 1.23 | 2.69 ± 1.62 | t: 1.010 | 0.320 |
Range | 0.9–5.5 | 1.1–6.8 | ||