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Due to interest in the COVID-19 vaccines, we are experiencing an extremely high call volume. Please understand that our phone lines must be clear for urgent medical care needs. We are unable to accept phone calls to schedule COVID-19 vaccinations at this time. When this changes, we will update this website. Our vaccine supply remains limited. Read all COVID-19 Vaccine Information.

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Acromioclavicular (AC) Joint Injury

The acromioclavicular joint, often referred to as the AC joint, is located where the collarbone (clavicle) meets the top of the shoulder blade (scapula). Commonly called a separated shoulder, an AC joint injury occurs when ligaments attached to the collarbone tear away from the shoulder blade.


AC Joint Injury: What You Need to Know

  • An AC joint injury can occur due to a forceful blow, such as during a sports activity or from a fall on to the top of the shoulder.
  • Pain associated with an AC joint injury can range from mild to very painful, depending on the severity of the injury.
  • Diagnosing an AC joint injury usually includes a physical exam, but you may also need to get an X-ray, CT scan or MRI.
  • Depending on the severity of the AC joint injury, treatment ranges from rest, wearing a sling and taking anti-inflammatory medications to surgery.

Shoulder Injuries | Q&A with Dr. Edward McFarland

Orthopaedic surgeon Edward McFarland, M.D., director of the Division of Shoulder Surgery, discusses the causes, symptoms and treatment of shoulder dislocations and subluxations.


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