Infraspinatus Muscle: Common Injuries and Role in Shoulder Function
The infraspinatus muscle, a key component of the rotator cuff, is the second most commonly injured muscle in the shoulder region. Orthopedic surgeons and specialist physiotherapists often treat these injuries, which can cause chronic pain and discomfort.
The infraspinatus muscle plays a crucial role in the lateral motion and horizontal extension of the arm, as well as maintaining overall joint stability. It is composed of two-thirds fleshy fibers and one-third tendinous fibers that form the infraspinatus tendon. Injuries to this muscle can result from repetitive strain activities like throwing a ball or swinging a racket, leading to referred pain throughout the shoulder area. When the tendinous part of the muscle becomes inflamed, it may be diagnosed as infraspinatus tendinitis. This muscle is attached to the suprascapular nerve and associated with the fifth and sixth cervical vertebrae.
Understanding the infraspinatus muscle's role and common injuries is vital for preventing and managing shoulder issues. Specialists in orthopedic surgery and physiotherapy focusing on shoulder therapy are best equipped to treat these conditions, ensuring proper recovery and maintaining shoulder function.
