Normal Anatomy of the Shoulder Joint

The shoulder is the most flexible joint in the body making it very susceptible to instability and injury. It is a 'ball-and-socket' joint. A ‘ball' at the top of the upper arm bone, humerus, fits neatly into a 'socket’, called the glenoid, which is part of the shoulder blade, or scapula.

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Shoulder Instability

Shoulder instability is a chronic condition that causes frequent dislocations of the shoulder joint.

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Rotator Cuff Tear

The rotator cuff is the group of tendons in the shoulder joint that keep the ball compressed and centered against the socket during a wide range of motion.. Rotator cuff tears are one of the most common causes of shoulder pain in middle aged adults and older individuals.

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Frozen Shoulder

Frozen shoulder, also called adhesive capsulitis is a condition characterized by pain and loss of motion in shoulder joint. It is more common in older adults aged between 40 and 60 years and is more common in women than men.

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Shoulder Impingement

Shoulder impingement is the condition of inflammation of the tendons and bursa of the shoulder joint. It is one of the most common causes of pain in the adult shoulder.

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Clavicle Fracture

Clavicle fracture is a very common sports injury seen in skiers, snowboarders, mountain bikers, or anyone involved in high energy contact sports.

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Shoulder Arthroscopy

Arthroscopy is a minimally invasive diagnostic and surgical procedure performed for joint problems. Shoulder arthroscopy is performed using a pencil-sized instrument called an Arthroscope.

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Shoulder Joint Replacement

The shoulder joint has a very wide range of motion. It is a ball and socket joint, where the head of the humerus (upper arm bone) articulates with the socket of the scapula (shoulder blade) called the glenoid.

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Click on the topics below to find out more from the orthopedic connection website of American Academy of Orthopaedic Surgeons.