4 days ago · An acromioclavicular joint injury, otherwise known as a shoulder separation, is a traumatic injury to the acromioclavicular (AC) joint with disruption of the acromioclavicular ligaments and/or …

Apr 28, 2025 · An AC joint separation, or AC joint sprain, is an injury to the ligaments which hold the acromioclavicular joint together at the top of the shoulder. Here we explain the symptoms, …

Learn the types, causes, symptoms, and treatment options for AC joint injuries. Request an appointment with a Mass General Brigham’s sports medicine specialist today.

An AC sprain is an injury to the ligaments that hold together the acromioclavicular joint, the small connection point where your collarbone meets the top of your shoulder blade. It’s one of the most …

When the capsule and ligaments are injured, the joint can become unstable and painful, and shoulder function can be affected. This type of injury is referred to as an “AC joint sprain” or a “separation.” …

The AC joint connects your collarbone and shoulder blade. Learn more about the treatment options and recovery time for a separated shoulder.

What is an AC joint sprain? Learn about AC joint sprains, including causes, risk factors, symptoms, diagnosis and treatment from the orthopedic experts at Mercy Health.

Individual patients will progress at different rates depending on their age, associated injuries, pre-injury health status, rehab compliance, tissue quality and injury severity.

Acromioclavicular Joint Sprains - Etiology, pathophysiology, symptoms, signs, diagnosis & prognosis from the Merck Manuals - Medical Professional Version.

Sep 26, 2025 · An AC joint sprain is most often caused by a fall directly onto the shoulder or a strong impact, such as in contact sports or accidents. The injury occurs when the force stretches or tears …