Review article: Risk factors for poor outcome following surgical treatment for rotator cuff tear.

The Medline database was searched using key words: 'rotator cuff', 'tear', and 'treatment'. 12 studies that involved (1) surgical treatment for rotator cuff tear, (2) measurement of pre- and post-operative pain score, functional score, and/or patient satisfaction, (3) patients that failed to improve functionally or had poor satisfaction, (4) preoperative examination of risk factors that could lead to poor outcome, and (5) a minimum follow-up of 6 months were reviewed to identify risk factors associated with poor outcome following surgical treatment for rotator cuff tear. The most common risk factor was tear size, followed by open compensation claim, age, and time from injury to surgery.