Arthroscopic surgery or keyhole surgery is very commonly done for rotator cuff injuries. Rotator cuff injuries can be injuries to the supraspinatus, infraspinatus, subscapularis and teres minor. This is a very common sports injury and injury to the rotator cuff results in an inability to throw and painful thirty to ninety degrees movement of the shoulder. If you have a rotator cuff injury it can be treated by physiotherapy and exercises and if they do not recover completely with the exercises arthroscopic or mini-open repair of the rotator cuff can be done.