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 Pain: Treating Symptoms That Won’t Go Away
Oct 9, 2025 · Pain in the shoulder's acromioclavicular (AC) joint is a common problem that can be severe and persistent enough to interfere with your daily routine. There are several causes for AC …
Acromioclavicular Joint - Physiopedia
The Acromioclavicular Joint, or AC Joint, is one of four joints that comprises the Shoulder complex. The AC Joint is formed by the junction of the lateral clavicle and the acromion process of the scapula and …
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 (AC) Joint Subluxation and Dislocation: Types ...
3 days ago · Acromioclavicular (AC) joint subluxation and dislocation are common shoulder injuries, especially after a fall directly onto the tip of the shoulder or a sports tackle. The AC joint is the small …
AC Joint Injury: Symptoms & Treatment | Mass General Brigham
What is the AC joint? The AC joint is where the collarbone (clavicle) meets the end of the shoulder blade (scapula), known as the acromion. The AC joint contains cartilage between the bones, which are …
Acromioclavicular (AC) joint: Anatomy, function | Kenhub
Nov 3, 2023 · The acromioclavicular (AC) joint is the articulation between the two bones of pectoral girdle; the clavicle and scapula. It is a plane synovial joint, with flat articular surfaces which are …
Acromioclavicular Joint (AC joint) - Connecticut Orthopaedics
“Separation” of the shoulder is the common term used for a sprain of the AC or Acromioclavicular Joint. A fall directly on the shoulder can cause the joint to “separate.” This injury occurs most frequently in …
AC Joint Arthritis - SportsMD
Dec 9, 2025 · The acromioclavicular joint, or AC joint, is the joint formed between the collarbone (clavicle) and the top of the shoulder blade (acromion). Most people have a visible AC joint “bump” …
What is AC Joint? What are its Symptoms, Causes and Treatment?
Located at the very top of the shoulder, it connects the outer end of the clavicle (collarbone) to the acromion process, a bony projection on the shoulder blade (scapula). Here’s a breakdown of the key …