Question 1

What causes AC joint pain?

Accepted Answer

AC joint pain commonly comes from arthritis or wear at the joint where the clavicle meets the top of the shoulder. It can also develop after an injury or previous AC joint separation.

Question 2

How can I tell if my pain is coming from the AC joint?

Accepted Answer

AC joint pain is usually located directly on top of the shoulder and is often worse when reaching across the body. Tenderness directly over the AC joint is also common.

Question 3

Can an AC joint problem be treated without surgery?

Accepted Answer

Yes. Treatment usually begins with anti-inflammatory medication and often a cortisone injection. Some discomfort may persist, but patients can often live with their symptoms without requiring surgery.

Question 4

Do injections help determine whether the AC joint is causing my pain?

Accepted Answer

Yes. Cortisone injections directly into the AC joint are particularly useful diagnostically. Significant relief after the injection strongly confirms the AC joint as the source of pain and is highly predictive of relief with surgical treatment.

Question 5

When does the AC joint need surgery?

Accepted Answer

Surgery is considered when persistent AC joint pain remains bothersome despite conservative treatment. The best candidates are patients who obtained excellent temporary relief from a cortisone injection directly into the AC joint.

AC Joint Problems