Rotator cuff tear such symptoms frequently are diagnosed with failed rotator cuff syndrome. According to an article published by the American Academy of Orthopaedic Surgeons, arthroscopic procedures produce "satisfactory results" more than 90 percent of the time. Dr. Eric J. Strauss and the other authors wrote that 6-8 percent of patients have "incompetent" rotator cuffs, because their repaired tendons either fail to heal or develop additional tears. In some cases, the symptoms are due to cervical spine disease, featuring neck pain that radiates into the shoulder; suprascapular neuropathy, a nerve disorder; subacromial impingement, common in athletes and others who make repetitive overhead movements;
Synovial sheath function is to reduce friction between the tendon and their surrounding structure. An example is the common synovial sheath for the flexor tendons of the hand. Synovial sheath A synovial sheath is one of the two membranes of a tendon sheath which covers a tendon. The other membrane is the outer fibrous tendon sheath. The tendon invaginates the synovial sheath from one side so that the tendon is suspended from the membrane by the mesotendon, through which the blood vessels reach the tendon, in places where the range of movement is extensive. The mesotendon disappears or remains in the form