How do you describe a dislocated shoulder?
A shoulder dislocation occurs when the round ball at the top of the upper arm bone, or humerus, leaves the socket in the shoulder blade, or scapula. That means the ball and socket bones of the shoulder are separated, with the ball of the humerus out of position.
What happens in dislocation of the glenohumeral joint?
In an anterior dislocation, the arm is an abducted and externally rotated position. In the externally rotated position, the posterosuperior aspect of the humeral head abuts and drives through the anteroinferior aspect of the glenoid rim. This can damage the humeral head, glenoid labrum, or both.
How would you describe a dislocation?
A dislocation is an injury to a joint — a place where two or more bones come together — in which the ends of your bones are forced from their normal positions. This painful injury temporarily deforms and immobilizes your joint.
What is the most common glenohumeral dislocation?
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.
How do you examine a dislocated shoulder?
During the physical exam, your doctor will inspect the affected area for tenderness, swelling or deformity. An X-ray of your shoulder joint will show the dislocation and may reveal broken bones or other damage to your shoulder joint.
How do you classify dislocation?
In general, the dislocations are subclassified by the direction the distal bone is positioned relative to the proximal bone at the time of dislocation. In most instances, the subtypes are 1, 2, 3, 4 and 5: 1 = anterior, 2 = posterior, 3 = lateral, 4 = medial, and 5 = other.
How do you check for dislocation?
Your doctor may diagnose a dislocation by looking at and moving the joint and asking about what caused the injury. In some cases, a doctor will use an imaging test called an X-ray to take a picture of your bones. This test allows the doctor to see the exact location and severity of the dislocation.