Table 2 Comparison of ultrasound abnormalities between AS shoulders and control shoulders
AS shoulders | Control shoulders | p | |
|---|---|---|---|
(n = 76) | (n = 76) | ||
Enthese involvement | 43 (56.6) | 8 (10.5) | <0,001 |
Supraspinatus | 31 (40.8) | 5 (6.6) | <0.001 |
Subscapularis | 21 (27.6) | 1 (1.3) | <0.001 |
Infraspinatus | 22 (28.9) | 2 (2.6) | <0.001 |
Multiple enthesitis | 21 (27.6) | 0 (0) | 0.01* |
Rotator cuff tendinopathy | 28 (36.8) | 7 (9.2) | <0.001 |
Supraspinatus | 16 (21.1) | 4 (5.3) | 0.004 |
Subscapularis | 9 (11.8) | 2 (2.6) | 0.03* |
Infraspinatus | 12 (15.8) | 3 (3.9) | 0.01* |
Biceps tenosynovitis | 8 (10.5) | 0 (0) | 0.006* |
Bilateral involvement | 12 (15.8) | 2 (2.6) | 0.67* |
Gleno-humeral joint | |||
Synovitis | 1 (1.3) | 0 (0) | 1.00* |
erosion | 2 (2.6) | 0 (0) | 0.50* |
Acromio-claviculaire joint | |||
Synovitis | 0 (0) | 0 (0) | 0.24* |
Erosion | 0 (0) | 3 (3.9) | |
Sub-deltoid bursitis | 0 (0) | 0 (0) |