About Shoulder Dislocation

Overview

A shoulder dislocation occurs when the head of the upper arm bone pops out of the socket of the shoulder blade. It can be either a partial or complete dislocation. The most common type is a forward dislocation, which happens in about 95% of cases. However, backward or downward dislocations can also occur. A forward dislocation typically happens when the arm is hit while stretched or pulled back, such as when throwing a ball or reaching for something. It can also occur due to a strong blow to the arm from a fall, collision, or force, like in a car accident. When a shoulder dislocation occurs, it can cause severe pain and loss of mobility in the shoulder, and sometimes a change in the shape of the shoulder is noticeable. If you suspect a shoulder dislocation, it is important to seek medical attention for proper evaluation and treatment.

Causes and Risk Factors

Shoulder dislocation can be caused by:

• Injuries that push the humerus (upper arm bone) backward or muscle contractions with the same effect can cause a backward shoulder dislocation.
• Blunt force to the front of the shoulder
• Falling on an outstretched hand
• Seizures
• Electric shock

Non-modifiable risk factors of shoulder dislocation, which are factors that cannot be controlled to reduce the risk of developing the condition, include:

• Gender: Men have a higher risk of shoulder dislocation compared to women.
• Age: Younger individuals, especially those under 20 years old, are more prone to shoulder dislocations.

Modifiable risk factors of shoulder dislocation, which are factors that can be controlled to reduce the risk of developing the condition, include:

• Shoulder rotational strength: Weakness in the muscles responsible for shoulder rotation can increase the risk.
• Abnormal movement of the shoulder blade: This can contribute to instability and dislocation.
• Lack of preventive measures: Lack of proper training and conditioning specific to overhead sports can increase the risk.

It's important to note that these risk factors are based on research studies and may not apply to every individual. It's always recommended to consult with a healthcare professional for personalized advice.

Symptoms

The most common early symptoms of shoulder dislocation include:

• Severe shoulder pain
• Visible disfigurement or lump in the affected area
• Swelling and bruising of the shoulder or upper arm
• Numbness and/or weakness in the arm, neck, hand, or fingers
• Trouble moving the arm
• Muscle spasms in the shoulder

As the condition progresses or becomes more severe, other common symptoms may occur, such as:

• Pain that radiates up and down the arm, starting at the shoulder and moving towards the neck
• Joint stiffness and limited range of motion
• Clicking or catching sensation in the shoulder during movement

It's important to seek medical treatment right away if you experience these symptoms. Only a healthcare provider can provide an accurate diagnosis and appropriate treatment.

Diagnosis

To diagnose shoulder dislocation, doctors commonly perform the following examinations, tests, and procedures:

• Physical examination: Doctors will assess the symptoms and conduct a physical examination to evaluate the range of motion, clicking or catching sensations, and pain in both shoulders.
• X-ray: An X-ray image is usually obtained to determine the direction of the dislocation, and the appropriate maneuver needed to relocate the joint correctly.
• Anteroposterior shoulder radiography: This imaging technique helps establish the diagnosis of shoulder dislocation in the emergency department.

To determine the stage or severity of shoulder dislocation, additional examinations, tests, and procedures may include:

• Magnetic resonance imaging (MRI): MRI provides high-resolution images of soft tissues and is beneficial for evaluation of shoulder joint damage before surgery.
• Computed tomography (CT) arthrography: This technique involves injecting a special dye into the joint to make it easier to see injuries to the joint capsule, ligaments, bone, and cartilage.
• Magnetic resonance (MR) arthrography: Similar to CT arthrography, MR arthrography uses contrast dye to improve the visibility of shoulder joint structures on an MRI scan.

It's important to note that these additional examinations may be performed based on the individual case and at the discretion of the healthcare professional. Always consult with your doctor for a proper diagnosis and evaluation.

Treatment Options

The goals of treatment for shoulder dislocation are to reduce pain, restore normal shoulder function, prevent recurrence, and minimize complications. Here are the different treatment options and how they work towards achieving these goals:

• Medication: Nonsteroidal anti-inflammatory drugs (NSAIDs) can help reduce inflammation and alleviate pain associated with shoulder dislocation. However, it's important to consult with a healthcare professional before taking any medications.
• Therapies: Physical therapy or rehabilitation programs aim to reposition the humerus back into the socket and ensure it stays in place. These programs help restore range of motion, strength, and stability of the shoulder joint.
• Therapeutic procedures: Closed reduction is a procedure where a doctor gently maneuvers the bone back into position. Surgery may be recommended if dislocations recur or if there is damage to nerves, blood vessels, or ligaments in the shoulder.
• Health behavior changes: Wearing a splint, brace, or sling for a few days or weeks can prevent shoulder movement and aid in healing. Following recommended rehabilitation programs is crucial for optimal recovery.

Each treatment option plays a specific role in addressing shoulder dislocation symptoms, remember to consult with a healthcare professional for personalized advice for how to best address your shoulder dislocation issues.