acromion

(noun)

The outermost point of the shoulder blade.

Related Terms

  • glenoid
  • manubrium
  • fossa

Examples of acromion in the following topics:

  • Impingement Syndrome

    • Shoulder impingement syndrome, also called painful arc syndrome, supraspinatus syndrome, swimmer's shoulder, and thrower's shoulder, is a clinical syndrome that occurs when the tendons of the rotator cuff muscles become irritated and inflamed as they pass through the subacromial space, the passage beneath the acromion.
    • The rotator cuff muscle tendons pass through a narrow space between the acromion process of the scapula and the head of the humerus.
    • This can be caused by bony structures such as subacromial spurs (bony projections from the acromion), osteoarthritic spurs on the acromioclavicular joint, and variations in the shape of the acromion.
    • Passive movement at the shoulder will appear painful when a downwards force is applied at the acromion, but the pain will ease once the downwards force is removed.
    • Plain x-rays of the shoulder can be used to detect some joint pathology and variations in the bones, including acromioclavicular arthritis, variations in the acromion, and calcification.
  • Clavicle Fracture

    • The lateral end connects at the acromion of the scapula which is referred to as the acromioclavicular joint.
    • The clavicle forms a slight S-shaped curve where it curves from the sternal end laterally and anteriorly for near half its length, then forming a posterior curve to the acromion of the scapula.
  • Clavicle

    • Laterally, the clavicle is flattened and attaches to the acromion process of the scapula forming the acromioclavicular joint.
  • Scapula

    • The scapula articulates with the clavicle through the acromion process, a large projection located superiorly on the scapula forming the acromioclavicular joint.
  • Rotator Cuff Injury and Dislocated and Separated Shoulder

    • Of the four tendons, the supraspinatus is most frequently torn as it passes below the acromion.
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