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| WHAT IS A DISLOCATED SHOULDER? |
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| A dislocation of the shoulder happens when the bones making up your shoulder joint are moved apart so that the joint no longer functions. Your shoulder is made up of two bones: the ball (the end of the arm bone, or humerus) and the socket (part of your shoulder blade, or scapula). When the ball part of the joint is dislocated in front of the socket, it is called an anterior dislocation. When it is dislocated behind the socket, it is called a posterior dislocation. In severe cases, ligaments, tendons, and nerves can also be stretched and injured. |
| HOW DOES IT OCCUR? |
| The most common type of dislocation is an anterior dislocation. It can be caused by a fall onto your outstretched hand or onto the shoulder itself. A posterior dislocation may occur as a result of a powerful direct blow to the front of your shoulder.It may also be caused by a violent twisting of your upper arm, such as that caused by an electirc shock or seizure. |
| Dislocated shoulders are common in contact sports such as football, rugby, hockey, and lacrosse. Other sports that may cause the injury include downhill skiing, volleyball, and soccer. You may also be genetically susceptible to a dislocation, particularly if your shoulder goes out often or easily. Other members of your family may have the same problem. |
| WHAT ARE THE SYMPTOMS? |
| The main symptom is pain in your shoulder and upper arm that is made worse by movement. If you have an anterior dislocation, you will find yourself holding your arm on the dislocated side slightly away from your body with your opposite hand. This will keep your dislocated shoulder in the least uncomfortable position. Your shoulder will have a large bump rising up under the skin in front of your shoulder. Your shoulder will look square instead of round. If you have a posterior dislocation, you will hold your arm on the dislocated side tight against your body. You will have a large bump on the back of your shoulder. |
| HOW IS IT DIAGNOSED? |
Your doctor will ask about your medical history, including your symptoms, previous treatment, and family history.
During your physical exam, your doctor will check for: |
| - shoulder tenderness and weakness |
| - numbness in the shoulder area, arm, or hand |
| - pain when you move your shoulder, or loss of normal shoulder motion |
| - shoulder instability and deformity |
| Your doctor will arrange for an x-ray of the joint and surrounding areas to confirm the dislocation and check for broken bones. |
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