Alteration in coracohumeral ligament and distance in people with symptoms of subcoracoid impingement.

Background: Differentiation between subacromial impingement versus subcoracoid impingement are important for the treatment target. We evaluated the correlations between coracohumeral ligament (CHL) thickness and distance (CHD) and characterized the CHL and subscapularis (SSC) in subcoracoid impingement subjects.

Methods: An observational, cross-sectional study was carried out.