What causes nonoutlet impingement in supraspinatus tendonitis?

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

Nonoutlet impingement can also occur. The causes may be loss of normal humeral head depression either from a large rotator cuff tear or weakness of the rotator cuff muscles from a C5/C6 neural segmental lesion or a suprascapular mononeuropathy. Another way this may occur is with thickening or hypertrophy of the subacromial bursa and rotator cuff tendons.


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