in which muscle does a rotator cuff injury occur?
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Rotator cuff tear The tendons of the rotator cuff, not the muscles, are most commonly involved, and of the four, the supraspinatus is most frequently affected, as it passes below the acromion. Such a tear usually occurs at its point of insertion onto the humeral head at the greater tubercle.
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Rotator cuff The rotator cuff muscles are important in shoulder movements and in maintaining glenohumeral joint (shoulder joint) stability. These muscles arise from the scapula and connect to the head of the humerus, forming a cuff at the shoulder joint.he tendons at the ends of the rotator cuff muscles can become torn, leading to pain and restricted movement of the arm. A torn rotator cuff can occur following a trauma to the shoulder or it can occur through the wear and tear on tendons, most commonly the supraspinatus tendon found under the acromion.
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Rotator Cuff Tear: Signs & Symptoms Signs and Symptoms of a Rotator Cuff Tear. The rotator cuff is a group of muscles and tendons that covers the top of the upper arm bone (humerus) and holds it in place in the shoulder joint. It allows the arm to rotate at the shoulder joint. Rotator cuff tears are a common source of shoulder pain.
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The Painful Shoulder: Part I. Clinical Evaluation The rotator cuff is composed of four muscles: the supraspinatus, infraspinatus, teres minor and subscapularis . The subscapularis facilitates internal rotation, and the infraspinatus and teres minor muscles assist in external rotation. The rotator cuff muscles depress the humeral head against the glenoid.
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Rotator cuff problems The rotator cuff is a group of muscles and tendons that attach to the bones of the shoulder joint, allowing the shoulder to move and keeping it stable. 1  Rotator cuff tendinitis refers to irritation of these tendons and inflammation of the bursa (a normally smooth layer) lining these tendons.
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Rotator Cuff Calcific Tendinitis Impingement (impact on bone into rotator cuff tendon or bursa) should not occur during normal shoulder function. When it does happen, the rotator cuff tendon becomes inflamed and swollen, a condition called rotator cuff tendonitis. Likewise if the bursa becomes inflamed, shoulder bursitis will develop.
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Rotator Cuff Tear: Signs & Symptoms Health Articles. Rotator Cuff Tear: Signs & Symptoms. The rotator cuff is a group of muscles and tendons that covers the top of the upper arm bone (humerus) and holds it in place in the shoulder joint. It also allows the arm to rotate at the shoulder joint.
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The Rotator Cuff It is very easy for the larger more powerful muscles to over-power the rotator cuff and cause over-use injuries. This is a very common source of shoulder pain in overhead athletes, and weight lifters or those of you who are active in the gym.
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- A rotator cuff tear occurs when there is an injury to one or more of the tendons of the rotator cuff. In these cases, patients may have pain and weakness of the shoulder joint. Surgery is sometimes needed in the treatment of this condition.
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Rotator Cuff Tears Rotator Cuff Tears. Also Known as: Tendon Tear, supraspinatus tendon tear. The rotator cuff is a group of tendons that connects the four muscles of the upper shoulder to the bones ( see Anatomy ). The strength of the cuff allows the muscles to lift and rotate the humerus (the bone of the upper arm). The tendons run under the acromion (part of the shoulder blade) where they are very vulnerable to being damaged. This can lead to a tear resulting in a painful, weak shoulder.
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Rotator Cuff Tear Rotator Cuff Tears. The shoulder is a complex, very mobile joint with over twenty muscles involved in its motion. Four of these muscles are involved in the rotator cuff, a group of four tendons that join together and facilitate rotation of the arm bone, or humerus, at the shoulder.otator cuff tears may be asymptomatic, or they may cause pain and weakness of the shoulder. Rotator cuff tears usually cause pain with shoulder motion, and shoulder motion may actually become limited due to pain. Sometimes the pain is not in the shoulder itself, but refers to the affected arm.
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Shoulder Rotator Cuff Tear Rotator Cuff Tear Introduction The rotator cuff is a series of 4 muscles in the shoulder that form a cuff of tissue around the humerus bone in the shoulder joint.
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- Another suggested reason for the supraspinatus to be damaged preferentially over the other rotator cuff muscles is a decreased blood supply to the tendon (MacNab, 1973). These ideas are discussed more in the “Why Does it Occur” tab of this site.
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- Rotator Cuff Injuries. Don’t let anyone tell you that you need to do certain exercises or take particular drugs for the rest of your life. Finding a cure means eliminating the source of the problem. The “rotator cuff” muscles are the most commonly injured muscles of the shoulder.The rotator cuff (four muscles in total) is also the primary support structure for the shoulder.Therefore, even minor dysfunction associated with these muscles can create significant pain and disability including shoulder pain, arm weakness, and decreased athletic performance.otator Cuff Injuries. Don’t let anyone tell you that you need to do certain exercises or take particular drugs for the rest of your life. Finding a cure means eliminating the source of the problem. The “rotator cuff” muscles are the most commonly injured muscles of the shoulder.
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ARTÂ® News The rotator cuff is a group of muscles and tendons that hold the shoulder joint in place and allow you to move your arm and shoulder. Problems occur when part of the rotator cuff becomes irritated or damaged. This can result in pain, weakness and reduced range of motion. Sometimes one or more tendons become detached from the bone.
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Anatomy When one or more of the rotator cuff tendons is torn, the tendon no longer fully attaches to the head of the humerus. Most tears occur in the supraspinatus muscle and tendon, but other parts of the rotator cuff may also be involved. In many cases, torn tendons begin by fraying.
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Biceps Tendinitis and Injury Causes of a rotator cuff injury include: 1  Direct blow to the shoulder area. 2  Falling on an outstretched arm. 3  Chronic degenerative wear and tear on the tendons: Arthritis may decrease the space for the tendons.  Repetitive overhead motion of the arm such as in: Swimming.
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Overview Rotator cuff disease may be the result of either a substantial injury to the shoulder or to progressive degeneration or wear and tear of the tendon tissue. Repetitive overhead activity, heavy lifting over a prolonged period of time, and the development of bone spurs in the bones around the shoulder may irritate or damage the tendon.
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Rotator Cuff Tendinosis Signs: the physical exam of rotator cuff tendinosis typically reveals pain when the arm is passively elevated in front of the body. This called an arc of pain. Maneuvers which tighten the posterior shoulder capsule also typically worsen pain because they compress the rotator cuff against the acromion bone.
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- The rotator cuff, a group of muscles and tendons in the shoulder, can become damaged or irritated through normal wear and tear, following an accident, or as the result of repetitive arm motions, such as swinging a tennis racket.
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Rotator cuff tear A rotator cuff 'injury' can include any type of irritation or overuse of those muscles or tendons, and is among the most common conditions affecting the shoulder.
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Rotator cuff The rotator cuff includes muscles such as the supraspinatus muscle, the infraspinatus muscle, the teres minor muscle and the subscapularis muscle. The upper arm consists of the deltoids, biceps, as well as the triceps.
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- When the rotator cuffbecomes inflamed because of injury or overuse, or when thebursa becomes inflamed, then both the swollen tendon andswollen bursa may become pinched between the humeralhead and the acromion. Impingement syndrome may representa grade 1 or 2 strain of the tendon. A grade 1 strain is a mildstrain.