Shoulder Dislocation
What is a Shoulder Dislocation?
A Shoulder Dislocation is an injury that occurs when the top of the arm bone (Humerus) loses contact with the socket of the shoulder blade (Scapula).
Is a Shoulder Dislocation the same as a Shoulder Separation?
No! Although they are often confused for each other, these are two very different injuries! It is important to distinguish between these two problems because the issues with management, treatment, and rehabilitation are different.
How does a shoulder dislocation happen?
A shoulder dislocation generally occurs after an injury such as a fall or a sports-related injury. About 95% of the time, when the shoulder dislocates, the top of the humerus is sitting in front of the shoulder blade—an anterior dislocation. In less than 5% of cases, the top of the humerus is behind the shoulder blade—a posterior dislocation. Posterior dislocations are unusual, and seen after injuries such as electrocution or after a seizure.
What are the symptoms of a Shoulder Dislocation?
Patients with a shoulder dislocation are usually in significant pain. They know something is wrong, but may not know they have sustained a shoulder dislocation. Symptoms of shoulder dislocation include:
- Shoulder pain
- Arm held at the side, usually slightly away from the body with the forearm turned outward
- Loss of the normal rounded contour of the deltoid muscle
How is the diagnosis of a Shoulder Dislocation made?
Diagnosis of a Shoulder Dislocation is usually quite apparent just by talking to a patient and examining their joint. Patients must be examined to determine if there is any nerve or blood vessel damage.
