1 of 270 acromions) and type I (22 [24%] of 90 acromions).

2 e that sits between the rotator cuff and the acromion.

3 acromial types I, II, and III were 22.8% (90 acromions), 68.5% (270 acromions), and 8.6% (34 acromion

4 iable was the remaining distance between the acromion and clavicle (ACD), as well as the coracoid pro

5 was symmetric in 135 (70.7%) of 191 pairs of acromions and asymmetric in 56 pairs (29.3%).

6 cromions) versus type II (115 [42.6%] of 270 acromions) and type I (22 [24%] of 90 acromions).

7 nd III were 22.8% (90 acromions), 68.5% (270 acromions), and 8.6% (34 acromions), respectively.

8  the tendon insertion sites and the glenoid, acromion, and coracoid for the loaded ABER position.

9 b mobility required by gliding occurs at the acromion-clavicle and glenohumeral joints, is different

10 ance between the supraspinatus insertion and acromion in the loaded ABER position decreased significa

11 le (LAA), acromiohumeral distance (AHD), and acromion index (AI) on a 1.5T MRI, from 68 patients with

12 s of this method, osseous impingement by the acromion is not a primary cause of shoulder impingement

13 omions), 68.5% (270 acromions), and 8.6% (34 acromions), respectively.

14 were most common in type III (20 [59%] of 34 acromions) versus type II (115 [42.6%] of 270 acromions)