During the month of March 2019, JBJS and OrthoBuzz readers will have open access to the JOSPT article titled “The Impact of Decreased Scapulothoracic Upward Rotation on Subacromial Proximities.”
In this shoulder kinematics study of 40 people classified as having high or low scapulothoracic upward rotation, contact between the coracoacromial arch and rotator cuff tendon occurred in 45% of participants. The relatively low prevalence of contact suggests that subacromial rotator cuff compression may be less common than traditionally presumed.