Shoulder surgery Anatomy

variable. It arises most commonly from the glenoid labrum (45%), less commonly from the supraglenoid tubercle (30%) At its proximal attachment near the glenoid, it has an Therefore, rupture of the biceps tendon most commonly radiographs in patients with isolated loss of the proximal ARTICLE IN PRESS Current Orthopaedics (2006) 20, 370–3750268-0890/ $- see front matter & 2006 Elsevier Ltd. All rights reserved.average cross-section of 8.4 3.4mm. This decreases to 4.5 2.1mm as the tendon leaves the bicipital groove. attachment of the long head of biceps. He found that therewas 2–6mm of superior translation of the humeral head in all patients in all positions of shoulder abduction except at zero degrees. He concluded that the long head of biceps acts doi:10.1016/j.cuor.2006.06.007 Corresponding author.and in the remaining it arises from both the glenoid labrum and the supraglenoid tubercle (25%). The tendon travels obliquely within the glenohumeral joint to exit beneath the transverse humeral ligament along the intertubercula