Understanding Rotator Cuff Tears: Anatomy, Injury Types, and Treatment Options

Patient undergoing shoulder ultrasound examination for rotator cuff evaluation.

Shoulder pain is one of the most common musculoskeletal complaints, and rotator cuff injuries are a frequent cause. Whether from repetitive use, aging, or acute injury, rotator cuff tears can significantly affect daily function and quality of life. This article provides a clear overview of rotator cuff anatomy, types of tears, and the range of treatment options—including where regenerative therapies may fit into care plans.

What Is the Rotator Cuff?

The rotator cuff is a group of four muscles and their tendons that stabilize the shoulder joint and allow for smooth, controlled movement. These muscles include:

  • Supraspinatus – assists with lifting the arm
  • Infraspinatus – helps with external rotation
  • Teres minor – supports external rotation
  • Subscapularis – responsible for internal rotation

Together, these structures keep the head of the humerus (upper arm bone) cente