The subscapularis tendon is one of a group of tendons which collectively form the rotator cuff. Your shoulder has numerous muscles and tendons controlling movement and stability of the shoulder. Among these are the tendons of the rotator cuff. The rotator cuff is composed of four tendons that blend together to help stabilise and move the shoulder. The rotator cuff is the collective term for a group of tendons, which includes the supraspinatus, infraspinatus, teres minor, biceps and subscapularis. These tendons pass under a bony-ligamentous arch. Show
Loss of integrity of any of these tendons is a common cause of shoulder weakness. After an injury, the subscapularis tendon alone can be torn or it can tear along with other tendons around your shoulder such as the biceps tendon and the supraspinatus tendon. The rotator cuff is a group of four muscles that hold your upper arm in place in your shoulder. It helps you make all the motions of your arm and shoulder. The head of your upper arm bone, also called the humerus, fits into the socket of your shoulder blade, or scapula. When you extend your arm out away from your body, the rotator cuff muscles keep it from popping out of the socket, or glenoid. Rotator cuff injuries are very common, especially in people over 40, athletes, and people whose work involves repeatedly lifting their arms overhead. Conservative treatments are usually successful. Share on PinterestFour muscles make up the rotator cuff: the subscapularis, teres minor, supraspinatus, and infraspinatus. Together they assist in stabilizing the shoulder joint as well as in performing various arm movements. Four muscles and their attached tendons make up the rotator cuff. Each of them aids in a specific motion of your shoulder. All together they help hold your upper arm in place in the shoulder socket. All four muscles originate in your shoulder blade, but the other end of the muscle leads to different parts of your upper arm bone. The acronym SITS can help you remember these four muscles:
Each of these four muscles attaches to the upper part of your humerus at a different point. From top to bottom, their order is the same as the acronym:
Many people who visit a doctor with shoulder pain have a problem with their rotator cuff. A rotator cuff injury can happen suddenly, such as falling on your outstretched arm. Or it can develop slowly, resulting from repetitive motions or age-related degeneration. Here are some of the types of rotator cuff injuries:
Symptoms of rotator cuff injuries vary by individual. They may include:
Some people with a rotator cuff injury may not feel any pain. The condition can be progressive, with degeneration occurring slowly. Only one-third of rotator cuff tears cause pain, according to a 2013 study. Your treatment for a rotator cuff injury will depend on the type of damage. For most rotator cuff injuries, doctors prescribe conservative treatment. Nonsurgical treatmentConservative treatment includes:
Newer types of conservative treatment now under study include:
Research estimates that conservative treatment is effective in 73 to 80 percent of cases of full-thickness rotator cuff tears. Most people regain their range of motion and strength after 4 to 6 months. Surgical treatmentIf symptoms persist or worsen, your doctor may recommend surgery. Your doctor will also prescribe surgery for severe shoulder injuries. Discuss with your doctor which type of surgery is best for your particular injury. Options include:
Recovery times from surgery vary depending on the type of surgery and extent of your injury. In some cases, healing can take up to 2 years, but most people are back to their normal activities and recover much sooner than that. Most surgical repairs are successful. Talk with your doctor about ways to increase a good outcome. For example, if you smoke, this will involve quitting. People who smoke are more likely to have a poorer surgical outcome. Physical therapy is important for rehabilitation after surgery, too. If you have bothersome shoulder pain, it’s best to see your doctor for diagnosis and treatment. Treating rotator cuff injuries early can save you from increasing pain and the inability to use your arm and shoulder in daily activities. The ball-and-socket structure of your shoulder and arm is an intricate arrangement of muscles, tendons, and bone. Injuries to the rotator cuff are common, but treatment is often successful. What are the four rotator cuff muscles quizlet?Supraspinatus, infraspinatus,teres minor and subscapularis are known as the rotator cuff muscles. They encompass and stabilize the glenohumeral joint.
What is the shared attachment site for three out of four rotator cuff?The scapula provides attachment to several groups of muscles. The intrinsic muscles of the scapula include the rotator cuff muscles, teres major, subscapularis, teres minor, and infraspinatus.
Which of the following is not part of the rotator cuff muscle group?Which muscle is not part of the rotator cuff? The teres major muscle is not part of the rotator cuff, although it is frequently confused with other muscles in the rotator cuff. The teres major performs similar functions to some of the rotator cuff muscles.
Which muscles works effectively with the latissimus dorsi and is said to be the latissimus dorsi's Little Helper?Latissimus dorsi works collaboratively with the teres major and pectoralis major to perform actions of the upper extremity. Together, these muscles will work to adduct, medially rotate and extend the arm at the glenohumeral joint.
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