4 Tests to Differentiate Shoulder Impingement and AC Joint Dysfunction

Summary by Krater

Eric Wong demonstrates four tests to differentiate between shoulder impingement and AC joint injury, including the Hawkins test, painful arc test, horizontal adduction test, and AC joint distraction test.

From the video

Answers: How do I differentiate between shoulder impingement and AC joint injury?

• shoulder impingement vs AC joint injury
• Hawkins test
• painful arc test
• horizontal adduction test
• AC joint distraction test

What it concludes

• Pain during the Hawkins test indicates shoulder impingement.
• Pain between 45 and 120 degrees during abduction suggests impingement, while pain above 135 degrees suggests AC joint dysfunction.
• Pain during horizontal adduction indicates AC joint dysfunction.
• Pain during the AC joint distraction test indicates AC joint dysfunction.