What is the relevant anatomy of supraspinatus tendonitis?

Updated: Dec 03, 2018
  • Author: Thomas M DeBerardino, MD; Chief Editor: Sherwin SW Ho, MD  more...
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Answer

The shoulder consists of 2 bones (ie, humerus, scapula), 2 joints (ie, glenohumeral, acromioclavicular), and 2 articulations (ie, scapulothoracic, acromiohumeral). Several interconnecting ligaments and layers of muscles join these bones. The relative lack of bony stability in the shoulder permits a wide range of motion. Soft tissue structures are the major glenohumeral stabilizers.


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