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In human anatomy, the acromion (from Greek: akros, "highest", ōmos, "shoulder", pl.: acromia) is a bony process on the scapula (shoulder blade). Together with the coracoid process, it extends laterally over the shoulder joint. The acromion is a continuation of the scapular spine, and hooks over anteriorly.
It does not properly belong to the acromioclavicular joint articulation, but is usually described with it, since it forms a most efficient means of retaining the clavicle in contact with the acromion. It consists of two fasciculi, called the trapezoid ligament and conoid ligament.
Subacromial impingement is not free of criticism. First, the identification of acromion type shows poor intra- and inter-observer reliability. [26] [27] Second, a computerized three-dimensional study failed to support impingement by any portion of the acromion on the rotator cuff tendons in different shoulder positions. [28]
The osseous margins of the coraco-acromial arch and hence the supraspinatus outlet canal; The shape of the acromion; This projection has a low tolerance for errors and, accordingly, needs proper execution. [26] The Y-projection can be traced back to Wijnblath’s 1933 published cavitas-en-face projection. [27]
The acromion of the scapula is connected to the clavicle by the superior acromioclavicular ligament. The coracoclavicular ligaments connect the clavicle to the coracoid process. The two ligaments that form the coracoclavicular ligaments are the trapezoid and conoid ligaments. These three ligaments add support to the shoulder joint. [citation ...
The acromion is a bony process at the end of the scapula The shoulder is a complex mechanism involving bones, ligaments , joints , muscles , and tendons . The two main causes are acute injury or chronic and cumulative degeneration of the shoulder joint.
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The supra-acromial bursa does not normally communicate with the shoulder joint. Muscles The shoulder joint is a muscle-dependent joint as it lacks strong ligaments. ...