[Non-inflammatory osteoarthritis of the shoulder].

Although rotator cuff disorder is by far the leading cause of shoulder pain, such pain can also reflect actual osteoarthritis. In shoulder pathology, non-inflammatory osteoarthritis should be kept in mind, as it is often the cause of symptoms resembling those of degenerative rotator cuff, with which it is most often associated. Among types of non-inflammatory osteoarthritis of the shoulder, the most often observed are acromioclavicular osteoarthritis and osteonecrosis of the humeral head.