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Bokor (13) reviewed 547 shoulders with instability, and the cause of instability was considered to be avulsion of the lateral capsule, including the inferior glenohumeral ligament from the neck of the humerus, in 41 patients (7.
MRI demonstrated an avulsion of the muscle attachment of the subscapularis onto the humeral neck along with the underlying anterior band of the inferior glenohumeral ligament, and an intact, normal appearing anterior-inferior labrum (Fig.
Arthroscopic surgery after the manipulation showed the presence of synovial proliferation around the rotator interval, CHL, middle glenohumeral ligament, and the anterior band of the inferior glenohumeral ligament.
The anatomy histology of the inferior glenohumeral ligament complex of the shoulder.
The anterosuperior part of the labrum also inserted into the fibres of the middle or inferior glenohumeral ligament in many specimens (Cooper et al 1992).
Other findings in this case included partial tear of the supraspinatus tendon and superior glenohumeral ligament (not shown).
14) The 11-to-3-o'clock position is a common site of anatomic variants of the labrum and glenohumeral ligament (sublabral recess, sublabral foramen, Buford complex and mobile glenoid labrum).
Lateral rotation performed in neutral stresses the superior capsular structures, whereas the inferior glenohumeral ligament complex is more stressed in 90 degrees of abduction, and in flexion more stress is placed on the superior capsular and labral structures (Terry et al 1991).
3) A Bankart lesion is often referred to as the "essential lesion" in a dislocation as it pulls the labrum away from the glenoid and disrupts the attachment of the inferior glenohumeral ligament (IGHL), greatly reducing anterior stability.
The rotator interval capsule merges with the coracohumeral (CHL) ligament and the superior glenohumeral ligament (SGHL) insertions.
It can be performed with the patient standing, sitting, or supine, and the test places the anterior band of the inferior glenohumeral ligament (IGHL) and anterior capsule under stress (Fig.
The superior glenohumeral ligament (SGHL) functions primarily to resist inferior translation and external rotation of the humeral head in the adducted arm.