supraspinatusjänne

The supraspinatus tendon is a crucial part of the rotator cuff, a group of muscles and their tendons that surround the shoulder joint. Specifically, it is the tendon of the supraspinatus muscle, which originates in the supraspinous fossa of the scapula (shoulder blade) and inserts onto the greater tubercle of the humerus (upper arm bone).

The primary function of the supraspinatus tendon is to assist in the abduction of the arm, which is the movement of lifting the arm away from the body. It also plays a significant role in stabilizing the head of the humerus within the glenoid cavity, the socket of the shoulder joint, especially during arm movements. This stabilization is vital for the overall function and integrity of the shoulder.

Injuries to the supraspinatus tendon are common, particularly in athletes involved in overhead activities like baseball, swimming, and tennis. These injuries can range from tendinitis, which is inflammation of the tendon, to partial or full tears. Overuse, repetitive motions, age-related degeneration, and direct trauma are common causes of supraspinatus tendon problems. Symptoms often include pain in the upper or outer part of the shoulder, which may worsen with arm elevation or reaching overhead, and weakness during abduction. Diagnosis typically involves a physical examination and imaging studies such as ultrasound or MRI. Treatment options vary depending on the severity of the injury and may include rest, ice, physical therapy, medications, or, in severe cases, surgery.