AC Joint (Acromioclavicular Joint): What It Is & Function
Nov 6, 2024 · What is the AC joint? The AC joint is one of two joints that make up your shoulder. It’s where the acromion (the top part of your shoulder blade) meets your clavicle (collarbone). That’s …
AC Joint Problems - Johns Hopkins Medicine
The acromioclavicular, or AC, joint is a joint in the shoulder where two bones meet. One of these bones is the collarbone, or clavicle. The second bone is actually part of the shoulder blade (scapula), which …
Acromioclavicular joint - Wikipedia
The acromioclavicular joint provides the ability to raise the arm above the head. This joint functions as a pivot point (although technically it is a gliding synovial joint), acting like a strut to help with movement …
AC Joint Pain: Treating Symptoms That Won’t Go Away
Oct 9, 2025 · There are several causes for AC joint pain, and treatment varies depending on what's making your shoulder hurt. The AC joint is where the acromion (the tip of your shoulder blade— …
Acromioclavicular osteoarthritis: Causes and treatment
Feb 16, 2023 · Acromioclavicular osteoarthritis is a common type of arthritis that affects the shoulder. It develops when the cartilage between the acromion and the collarbone wears down.
AC Joint Injury: Symptoms & Treatment | Mass General Brigham
The acromioclavicular (AC) joint is part of the shoulder and is a highly active and important joint in upper body movement. The AC joint is prone to injuries from falls, hits, and overuse, leading to AC joint …
Acromioclavicular (AC) Joint Injury (Shoulder Separation)
The acromioclavicular (AC) joint — along with ligaments — connects your collarbone and shoulder blade. An injury to to the AC joint is a shoulder separation.