What is Rockwood classification?
The Rockwood classification takes into account not only the acromioclavicular joint itself but also the coracoclavicular ligament, the deltoid, and trapezius muscles, whilst considering the direction of dislocation of the clavicle with respect to the acromion. Essentially types IV, V, and VI are variants of type III 6.
What is the classification of the acromioclavicular joint?
The acromioclavicular joint is a diarthrodial joint defined by the lateral clavicle articulating with the acromion process as it projects anteriorly off the scapula. The AC joint is a plane type synovial joint, which under normal physiological conditions allows only gliding movement.
What are the Rockwood classifications types of AC joint injury?
A Type I injury is a mild sprain of the AC ligament, Type II is a ruptured AC ligament and sprained CC ligaments, Type III is a superior dislocation of the AC joint with ruptured AC ligament, CC ligament, and joint capsule, Type IV is a posterior dislocation of the AC joint with ruptured AC ligament, CC ligament, and …
What is type4 injury?
In patients with a type IV injury, the deltotrapezial fascia is disrupted in addition to complete tears of the acromioclavicular and coracoclavicular ligaments. This injury complex allows posterior displacement of the clavicle into the trapezius and requires reduction, usually operative.
What 3 motions occur at the acromioclavicular joint?
The primary motions of interest in our study were at the AC joint. Scapular ori- entation relative to the clavicle was found by rotation about z (internal/external), rotation about y’ (downward/upward), and rotation about x” (anterior/posterior tilting) (z, y’, x” Cardan angles).
What is a Class B accident?
(2) Class B Accident. An Army accident with resulting total cost of property damage of $500,000 or more but less than $2,000,000; an injury and/or occupational illness that results in permanent partial disability; or when three or more personnel are hospitalized as inpatients as a result of a single occurrence.
What does a grade 3 shoulder separation look like?
Grade III Injury: Pain is present around the joint and in the area of the coracoclavicular ligaments. Swelling is present. As the joint moves, a popping sound may occur. There is shoulder deformity and a bump on the top of the shoulder.