However, it has been shown that patients with SIS typically have a tight posterior glenohumeral joint capsule, which, in turn, may cause abnormal glenohumeral mechanics resulting in compression of the structures that pass through the subacromial space.
However, it hasbeen shown that patients with SIS typically have a tightposterior glenohumeral joint capsule, which, in turn, maycause abnormal glenohumeral mechanics resulting incompression of the structures that pass through thesubacromial space.