What is the classification of acromioclavicular joint?
What is the classification of 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.
What is subluxation of acromioclavicular joint?
AC joint subluxation is a common sporting injury which, as the name suggests, involves the subluxation or partial separation of the clavicle from the joint which connects it to the acromion, usually as the result of a direct knock or fall.
Which two ligaments are most commonly ruptured in a Grade III AC sprain?
A type III injury involves tears of both the AC and CC ligaments, with 25% to 100% displacement of the clavicle compared with that on the contralateral side.
How is an AC joint injury diagnosed?
Physical therapists can diagnose an AC joint injury through a shoulder exam.
What is Rockwood classification?
The Rockwood classification of AC joint separations uses plain radiographs to describe varying degrees of soft tissue involvement and joint displacement. Rockwood expanded on previous classification systems of AC joint separations to provide a more-detailed description based on pathoanatomy of the injury.
Does a Grade 3 shoulder separation require surgery?
Most people do well without surgery. The severe injury (Grade 3) can be treated either nonoperatively or operatively. Non-operative treatment involves immobilisation in a sling for two to three weeks followed by a course of physiotherapy.
How many types of acromioclavicular sprains are there?
Diagnosis of Acromioclavicular Joint Sprains Type II: Subluxation with some overlap of the clavicle and acromion. Type III: Complete joint dislocation, usually because the coracoclavicular ligament is torn. Type IV: Posterior displacement of the distal clavicle. Type V: Superior displacement of the distal clavicle.
What causes acromioclavicular joint injuries?
An Acromioclavicular joint sprain is a tear (or stretching) of the ligaments which hold the clavicle bone to the top of the shoulder blade. It is usually caused by a fall onto an outstretched arm. The acromioclavicular joint is formed by the outer end of the clavicle (collar bone), and the acromion process of the scapular (shoulder blade).
What are the common causes of acromioclavicular pain?
Osteoarthritis – OA occurs due to gradual wear and tear. Over time,cartilage of the joint can wear away,causing the bone of the joint to scrape together.
What are symptoms of AC separation?
Common symptoms of an AC joint separation include: Moderate to severe pain and swelling at the top of the shoulder when sleeping or moving the arm overhead. A general sense of weakness or instability in the affected shoulder. Restricted range of motion. popping sound while moving the joint.
How to fix AC joint pain?
Ice packs applied to the area for a half hour right after the injury are important and will reduce pain as well as reduce swelling.
