What is the most common site of rotator cuff damage?

The most common site of rotator cuff damage is typically found on the supraspinatus tendon, particularly at the location near the greater tuberosity of the humerus. This area is subject to significant mechanical stress and is frequently exposed to impingement due to its position in relation to the shoulder joint and the surrounding structures.

The supraspinatus muscle is responsible for initiating shoulder abduction and is vulnerable to injury during overhead activities or repetitive shoulder use, which can lead to wear and tear at the tendon. Damage often occurs about 1 cm from its attachment point on the greater tuberosity because this is where the tendon differences in structure and vascularity can lead to degeneration or tearing, especially in individuals engaging in activities that involve lifting or reaching above head levels.

In contrast, the other options refer to sites of the rotator cuff that are not as commonly associated with injury due to either their anatomical position or the mechanical forces they experience during movement. This highlights the specific vulnerability of the supraspinatus tendon at the greater tuberosity as a primary location for rotator cuff injuries.