Normal Anatomy of the Shoulder Joint
How does the Shoulder joint work?
Find out more in this web based movie.
Rotator cuff is the group of tendons in the shoulder joint providing support and enabling wider range of motion. Major injury to these tendons may result in tear of these tendons and the condition is called as rotator cuff tear.
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Shoulder impingement is also called swimmer’s shoulder, tennis shoulder or rotator cuff tendinitis. It is an inflammatory condition of the shoulder tendons. Individuals with shoulder impingement may experience severe pain at rest and during activities as well as weakness of the arm and difficulty in raising the arm overhead. X-rays and MRI can assist in diagnosis.
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Shoulder arthroscopy is a surgical procedure in which an arthroscope is inserted into the shoulder in order to visualize the joint. Benefits of arthroscopic surgery are smaller incisions, faster healing, more rapid recovery and reduced scarring. Arthroscopic surgical procedures are usually performed on an outpatient basis and the patient is able to return home the same day.
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Frozen shoulder is a condition of painful shoulder with limited movement because of pain and inflammation. It is also referred as adhesive capsulitis and may progress to the state where an individual may feel very hard to move the shoulder.
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Shoulder instability is a chronic condition that causes frequent dislocations of the shoulder. A dislocation occurs when the end of the humerus (the ball portion) partially or completely dislocates from the glenoid (the socket portion). A partial dislocation is referred to as a subluxation whereas a complete separation is referred to as a dislocation.
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Your shoulder joint is a ball and socket joint made up of the upper arm bone, the shoulder blade and the collarbone. The head of the upper arm bone fits into the socket of the shoulder joint known as the glenoid cavity. The outer edge of the glenoid is surrounded by a strong fibrous tissue called the labrum.
The term arthritis literally means inflammation of a joint, but is generally used to describe any condition in which there is damage to the cartilage. Damage of the cartilage in the shoulder joint causes shoulder arthritis. Inflammation is the body’s natural response to injury.
Shoulder Labrum Tear
The shoulder joint is a “ball and socket” joint that enables the smooth gliding and thereby the movements of arms. However it is inherently unstable because of the shallow socket. A soft rim of cartilage, the labrum lines the socket and deepens it so that it accommodates the head of the upper arm bone better.
Click on the topics below to find out more from the Orthopedic connection website of American Academy of Orthopaedic Surgeons.
- The Shoulder
- Arthritis of the Shoulder
- Arthroscopic Shoulder Surgery: Thermal Capsulorrhaphy
- Broken Collarbone
- Dislocated Shoulder
- Fracture of the shoulder blade (scapula)
- Frozen Shoulder
- Rotator Cuff Tears
- Separated Shoulder
- Shoulder Impingement (Bursitis, Tendinitis)
- Shoulder Joint Tear (Glenoid Labrum Tear)
- Thoracic outlet syndrome
- Shoulder Arthroscopy