Which rotator cuff injury is most commonly encountered in clinical practice?

The supraspinatus tear is the most commonly encountered rotator cuff injury in clinical practice. This is primarily because the supraspinatus tendon passes beneath the acromion and is particularly susceptible to degeneration and tears due to its location and the mechanics of shoulder movement. The tendon is responsible for the initial 15 degrees of arm abduction, making it critical for shoulder function and mobility.

Injuries to the supraspinatus are often the result of degenerative changes associated with aging, cumulative trauma, or acute injury, leading to symptoms such as pain, weakness, and limited range of motion. The prevalence of supraspinatus tears is further supported by studies indicating that they frequently occur alongside other rotator cuff injuries, contributing to their commonality in clinical settings.

Overall, the susceptibility of the supraspinatus to injury and its significance in shoulder function explain why tears in this tendon are the most frequently encountered in clinical practice.