Questions and Answers

Q: What are possible injuries to the rotator cuff?

Rotator cuff injuries are typically either traumatic or degenerative. Acute traumatic injuries may include falls, throwing, automobile accidents, etc., and comprise only 5-8% of all rotator cuff problems. Degenerative rotator cuff problems comprise >90% of all cases. Degenerative problems are common in the elderly population. Above-the-head work, and repetitive heavy lifting can lead to degeneration of the shoulder joint. Typical progression of the degeneration includes tendinitis, bursitis, impingement, and then ultimately a tear. Of the four muscles that are part of the rotator cuff, >90% of all degenerative injuries involve the suprasinatus muscle tendon. Tears can range from minimal partial tears to full-thickness or complete tears.

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