Shoulder Dislocation
A shoulder joint dislocation occurs when the humerus separates from the scapula, at the glenohumeral joint level. Considering that the shoulder has a great range of motion, this joint becomes quite vulnerable to this type of injuries.
A shoulder joint dislocation is generally caused by a trauma that occurs with the arm in abduction and external rotation, which causes the anterior displacement of the humeral head, thus leading to ruptures in the articular capsule and the tearing of the glenoid labrum in the lower-anterior portion (Bankart's Lesion).
Depending on the position of the humeral head, joint dislocations may be:
— Anterior
— Posterior
— Superior
— Inferior
When Bankart's lesion occurs, especially in young patients with some ligament laxity, it is likely to occur again, causing recurrent shoulder dislocations (a sign of chronic instability).
A shoulder joint dislocation is generally caused by a trauma that occurs with the arm in abduction and external rotation, which causes the anterior displacement of the humeral head, thus leading to ruptures in the articular capsule and the tearing of the glenoid labrum in the lower-anterior portion (Bankart's Lesion).
Depending on the position of the humeral head, joint dislocations may be:
— Anterior
— Posterior
— Superior
— Inferior
When Bankart's lesion occurs, especially in young patients with some ligament laxity, it is likely to occur again, causing recurrent shoulder dislocations (a sign of chronic instability).