Rotator cuff tear recovering from large rotator cuff tears, are prone to developing new tears. Rehabbing too soon or too strenuously might increase the risk of retear or failure to heal. However, no research has proven a link between early therapy and the incidence of re-tears. In some studies, patients who received earlier and more aggressive therapy reported reduced shoulder pain, less stiffness and better range of motion. Other research has shown that accelerated rehab results in better shoulder function. Ross et al. note that, despite the findings, "no definitive consensus exists supporting a clinical difference" between the two methods of rehab. There
Subacromial bursitis (those) who were twenty-one to forty years old had less satisfactory results". The poorer outcome for patients over 60 years old was thought to be potentially related to "undiagnosed full-thickness tears of the rotator cuff". Subacromial bursitis Subacromial bursitis is a condition caused by inflammation of the bursa that separates the superior surface of the supraspinatus tendon (one of the four tendons of the rotator cuff) from the overlying coraco-acromial ligament, acromion, and coracoid (the acromial arch) and from the deep surface of the deltoid muscle. The subacromial bursa helps the motion of the supraspinatus tendon of the rotator cuff