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The Mueller Sports Medicine Arm Sling comes equipped with an adjustable and padded shoulder strap for maximum comfort and offers arm support to restrict movement and promote rapid healing.
An acromioclavicular (AC) joint sprain is a common shoulder injury that usually results from falling onto the shoulder. Another cause of this injury is falling onto an outstretched arm with which you are trying to break the fall.
Another common name for this injury is shoulder separation since it causes an increase in the space between the shoulder blade and collarbone.
This type of injury frequently occurs in contact sports when athletes collide with each other and fall to the ground. Typical sports in which it occurs are hockey, rugby, skiing, football, cycling and snowboarding. It is also sometimes seen in victims of motor vehicle accidents.
Because the AC joint has many ligaments that connect its constituent bones together, an injury to the joint usually damages one or several ligaments.
The typical symptoms of an AC joint sprain are pain and tenderness at the location of the joint (see below).
The acromioclavicular joint is the point at which the shoulder blade meets the collarbone, or clavicle. The two bones are connected by several strong (ac) ligaments that hold the highest point of the shoulder blade (the acromion) to the collarbone. These are the ligaments that are damaged when an AC joint injury occurs.
There are actually two types of ligaments in the ac joint. The ligaments responsible for horizontal stabilization of the joint are acromioclavicular (ac) ligaments. Those responsible for vertical stability are the coracoclavicular (cc) ligaments. Both the ac and cc ligaments are susceptible to injury when an ac joint injury occurs.
The ac joint is one of the two shoulder joints. The other joint is the glenohumeral joint where the upper arm bone meets the shoulder blade in a ball and socket connection.
As mentioned above, the most typical circumstances that lead to this injury are:
As with many types of soft tissue injury, the symptoms can vary widely depending on the severity of the injury. Specifically, they can vary significantly depending on whether ligaments have been stretched without tearing, or have been torn.
In general, people with an ac joint sprain experience:
Both the drooping of the shoulder and the upward movement of the collarbone are direct results of the ligament damage. When healthy, the ligaments are supposed to hold the two bones together. However, when damaged, the ligaments are unable to hold the collarbone as close to the shoulder blade as they should.
People experiencing some or all of these symptoms, especially after a fall, should seek medical advice.
Treatment of an acromioclavicular joint sprain will of course depend on the severity of the injury. However, in most cases, the treatment plan below is sufficient to produce a full recovery, given enough time to work:
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