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X-ray shoulder showing light bulb sign (left) in posterior shoulder dislocation. The image on the right was taken after reposition. The light bulb sign is a radiological finding observed on plain radiographs in the context of posterior shoulder dislocation. [1] It refers to the abnormal, rounded appearance of the humeral head, which resembles a ...
Both before and after reduction, with lesions labeled. Vector (.svg) version is available. The bony Bankart lesion is new, as evidenced by lack of cortex on the superior part of the fragment, and is presumed to be caused by glenohumeral ligaments pulling the humerus towards the glenoid as the shoulder dislocates, causing a fracture even without significant external forces.
An inferior dislocation of the shoulder after an automobile accident. Note how the humerus is abducted. Also present is a fracture of the greater tuberosity. Inferior dislocation is the least likely, occurring in less than 1%. This condition is also called luxatio erecta because the arm appears to be permanently held upward or behind the head. [18]
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MRI of shoulder after dislocation with Hill–Sachs lesion and labral Bankart's lesion Hill–Sachs lesion post-shoulder dislocation X-ray at left shows anterior dislocation in a young man after trying to get up from his bed.
Dislocated shoulder. Anterior shoulder dislocation is the most common type of shoulder dislocation, accounting for at least 90% of shoulder dislocations. [5] [36] Anterior shoulder dislocations have a recurrence rate around 39%, with younger age at initial dislocation, male sex, and joint hyperlaxity being risk factors for increased recurrence ...
A Bankart lesion is a type of shoulder injury that occurs following a dislocated shoulder. [3] It is an injury of the anterior ( inferior ) glenoid labrum of the shoulder. [ 4 ] When this happens, a pocket at the front of the glenoid forms that allows the humeral head to dislocate into it.
Type 3 AC joint separation on plain X ray. In a Type III AC separation both acromioclavicular and coracoclavicular ligaments are torn without significant disruption of the deltoid or trapezial fascia. [11] A significant bump, resulting in some shoulder deformity, is formed by the lateral end of the clavicle.