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Traumatic Anterior Shoulder Instability, also referred to as TUBS (Traumatic Unilateral dislocations with a Bankart lesion requiring Surgery), are traumatic shoulder injuries that generally occur as a result of an anterior force to the shoulder while its abducted and externally rotated and may lead to recurrent anterior shoulder instability.
Shoulder dislocations are the most common of all major joint dislocations and frequently present to clinics and emergency departments. This topic review will discuss the mechanism of injury, evaluation, reduction, and subsequent management of shoulder dislocations.
An anterior shoulder dislocation occurs when the shoulder slides forward out of the socket. It is usually the result of a sports injury, fall, or traffic...
A dislocated shoulder is an injury in which the upper arm bone pops out of the cup-shaped socket that's part of the shoulder blade. The shoulder is the body's most flexible joint, which makes it more likely to dislocate. If you suspect a dislocated shoulder, seek prompt medical attention.
Anterior Shoulder Dislocation. An 80-year-old woman presents to the emergency room with severe right shoulder pain and immobility. She fell down the steps outside her house and landed on her right side two hours prior to presentation. On exam, her right arm is abducted and externally rotated.
Anterior and inferior dislocations are usually simple diagnoses, with the humeral head and outline of the glenoid being incongruent. Where the humeral head is displaced medially and overlies the glenoid, the dislocation is anterior.
Anterior dislocation is the most common, accounting for up to 97% of all shoulder dislocations. Mechanism of injury is usually a blow to an abducted, externally rotated and extended extremity. It may also occur with posterior humerus force or fall on an outstretched arm.
The shoulder can dislocate in an anterior (95% of shoulder dislocations), posterior, inferior direction and completely or partially. Fibrous tissue joining the bones is often stretched or torn, complicating a dislocation.
Anterior glenohumeral (GH) dislocation is the common first-time presentation of shoulder instability that is encountered by clinicians. GH dislocations account for about 50% of all joint dislocations, 95% to 97% of these being anterior dislocations. [1] The inherent mobility of the GH joint comes at the expense of stability.
Most commonly, the shoulder dislocates by sliding forward (anterior) out of the socket. This occurs when the shoulder dislocates while the arm is raised away from the body. The shoulder can also dislocate by sliding backward (posterior). This can occur when the shoulder dislocates while the arm is raised in front of the body.