The rotator cuff muscles are the main muscle group that stabilize and support the shoulder joint. The four rotator cuff muscles are the supraspinatus, infraspinatus, subscapularis, and teres minor.
The most common shoulder disease in patients with shoulder problems is rotator cuff tear. In the general adult population, the incidence of rotator cuff tears varies from 25% in people in their 60s to over 50% in people in their 80s.
For decades, subacromial impingement held the dominant position as the primary cause of rotator cuff tears. This led to surgical interventions that included both repairing the torn tendons and decompressing the subacromial space to alleviate the impingement. On the other hand, recent studies had shown that subacromial decompression had no significant difference as regard follow up of rotator cuff repair.

AIM OF THE WORK:
The aim of the work was to compare between functional results of arthroscopic rotator cuff repair with and without subacromial decompression.