Review of Literature
The supraspinatus and caudal tilt views correlate significantly with distinct intraoperative measurements of acromial spur size. Kitay GS et al advocate the evaluation of both views for preoperative assessment of the acromial spur in the rotator cuff impingement syndrome.
J Shoulder Elbow Surg 1995 Nov-Dec;4(6):441-8
The acromial angle is an objective and fairly reproducible measure of anterior acromial shape. The angle is useful in identifying patients with a greater likelihood of having a rotator cuff tear and in distinguishing patients with primary impingement from those with instability.
AJR Am J Roentgenol 1995 Sep;165(3):609-13
Tendon tears and fatty muscle degeneration in the rotator cuff correlate with reduced acromiohumeral distance. Size of rotator cuff tear and degree of fatty degeneration of the infraspinatus muscle have the most pronounced influence on acromiohumeral distance.
AJR Am J Roentgenol 2006 Aug;187(2):376-82