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X-ray at left shows anterior dislocation in a young man. X-ray at right shows the same shoulder after reduction and internal rotation, revealing a Bankart lesion and a Hill-Sachs lesion . In over 95% of shoulder dislocations, the humerus is displaced anteriorly . [ 8 ]
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.
X-ray at right shows same shoulder after reduction and internal rotation, revealing both a Bankart lesion and a Hill-Sachs lesion. Diagnosis can be suspected by history and physical examination which is usually followed by imaging. Because of the mechanism of injury, apprehension of anterior dislocation is common with provocative maneuvers.
Anterior shoulder dislocation and/or repeated anterior shoulder subluxations. [2] Diagnostic method: X-ray and MRI. Differential diagnosis: Anterior labroligamentous periosteal sleeve avulsion, Rotator Cuff Tears, SLAP Lesion, Impingement, Perthes lesion, Glenolabral articular disruption, Humeral avulsion of the glenohumeral ligament. [2]
The lesion is associated with any damage to the antero-inferior labrum. Most commonly due to anterior shoulder dislocation. The lesion often occurs after the initial dislocation. In chronic cases, there may be fibrosis and resynovialization of the labrum and periosteum. [citation needed] The lesion is best identified on MR arthrography.
Anterior shoulder dislocation is the most common type of shoulder dislocation, accounting for at least 90% of shoulder dislocations. [4] [38] 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. [39] The incidence ...
Anterior dislocation of the glenohumeral joint occurs when the humeral head is displaced in the anterior direction. Anterior shoulder dislocation often is a result of a blow to the shoulder while the arm is in an abducted position. In younger people, these dislocation events are most commonly associated with fractures on the humerus and/or ...
Shoulder reduction is the process of returning the shoulder to its normal position following a shoulder dislocation.Normally, closed reduction, in which the relationship of bone and joint is manipulated externally without surgical intervention, is used.