Where is acromioclavicular joint located?
Where is acromioclavicular joint located?
What is the AC joint? 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 is the big bone behind the shoulder that also forms part of the shoulder joint.
How does acromioclavicular joint feel?
How do you diagnose acromioclavicular joint pain?
- The patient points to the top of the shoulder to show the location of pain (not to the outside of the upper arm)
- The joint is tender when you or your physiotherapist touches it.
- You get pain bringing your arm across your chest/neck (see below)
How do you know if you have acromioclavicular joint?
The AC joint is located where the clavicle, or collar bone, meets the acromion, the highest part of the shoulder blade. This joint doesn’t move much, but it does enable some specific movements, such as raising the arm above the head or across the body.
Which joint is also known as the acromioclavicular joint?
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 is a gliding, or plane style synovial joint.
Is the acromioclavicular joint a ball and socket?
This ball-and-socket construction allows for circular movement of the arm. Acromioclavicular joint (AC joint). The acromioclavicular joint is located where the clavicle (collarbone) glides along the acromion, located at the top of the shoulder blade.
How do you determine acromioclavicular joint instability?
The diagnosis of AC joint instability can be based on historical data, physical examination and imaging studies. The cross body adduction stress test has the greatest sensitivity, followed by the AC resisted extension test and the O’Brien test. Proper radiographic evaluation of the AC joint is necessary.
What is abdominal palpation?
Palpation is the examination of the abdomen for crepitus of the abdominal wall, for any abdominal tenderness, or for abdominal masses. The liver and kidneys may be palpable in normal individuals, but any other masses are abnormal.
What does palpate mean in medical terms?
Palpation is a method of feeling with the fingers or hands during a physical examination. The health care provider touches and feels your body to examine the size, consistency, texture, location, and tenderness of an organ or body part.
What is the acromioclavicular joint?
The acromioclavicular (AC) joint is one of four joints that make up the shoulder complex. It consists of the acromion process of the scapula and the distal end of the clavicle, as well as the anterior, posterior, superior and inferior acromioclavicular ligaments.
What are the possible complications of acromioclavicular (AC) joint injections?
Complications of AC joint injection include the following: Anaphylactic reaction to the anesthetic agents used Introduction of a pathogen into the joint space with development of septic arthritis Damage to nerve and blood vessels
What does palpation of the clavicle reveal?
Palpation of the AC joint often reveals moderate swelling and slight superior migration of the distal clavicle relative to the acromion. Horizontal instability, which can be detected by manually grasping the clavicle and applying an anterior–posterior pressure, may be present in some type II injuries.
What is the difference between the axillary and acromioclavicular arteries?
The former is a branch of the axillary artery, while the latter stems from the subclavian artery via thyrocervical trunk . The acromioclavicular joint comprises the scapulothoracic articulation, together with the sternoclavicular joint and the soft tissue connection of the scapula and posterior chest wall.
