What Is an Acromioclavicular Joint Injection?

Reviewed on 8/18/2020

Injecting into the AC joint is a way to treat pain
Injecting into the AC joint is a way to treat pain

Injecting corticosteroids into the AC joint is a method to treat its injuries or pain. Injections into the AC joints can be given in the following conditions as well:

Injection to the AC joint can be used as a treatment or as a diagnostic technique.

What is an acromioclavicular joint?

The acromioclavicular (AC) joint is located at the top of the shoulder; it joins the collar bone (clavicle) and the top of the shoulder blade (acromion). The AC joint deteriorates over time as the joint space between the clavicle and acromion decreases with aging. Any injury to the AC joint can result in inflammation and swelling of the joints.

When should acromioclavicular joint injection be avoided?

Injection to the AC joint should not be performed in the following conditions:

How is an acromioclavicular joint injection given?

The patient is either made to stand or sit. The physician identifies the AC joint by examining it. Once the physician identifies the AC joint, a syringe filled with steroid and a local anesthetic is injected into the joint space. The solution should enter the space with minimal resistance. The physician may reposition the needle in case of any resistance. The ultrasonographic technique can enhance the accuracy of the AC joint injection.

What are the complications of an acromioclavicular joint injection?

The complications of the acromioclavicular joint injection include:

Other possible, rare side effects of the AC joint injections are:

  • Bruising
  • Bleeding
  • Pain at the injection site for some days

QUESTION

Medically speaking, the term "myalgia" refers to what type of pain? See Answer

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References
https://emedicine.medscape.com/article/103378-periprocedure#b4

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