- video clip: Acromioclavicular (AC) Joint Arthritis
PLAY VIDEOThis condition, also called AC joint arthrosis, is a degeneration of the joint at the top of the shoulder where the acromion meets the clavicle.
- video clip: Anatomy of the Shoulder
PLAY VIDEOThe muscles and joints of the shoulder make it the most mobile joint in the human body.
- video clip: Biceps Tendinitis
PLAY VIDEOBiceps Tendinitis is an irritation or inflammation of the biceps tendon at the shoulder. The biceps tendon helps to stabilize the humerus and aids in activities that involve overhead motion such as tennis or throwing a ball.
- video clip: Biceps Tendon Rupture
PLAY VIDEOThis condition is a tear of one of the tendons that anchor the biceps muscle to the shoulder. The upper end of the biceps muscle is divided into two separate sections called the long head and the short head. The long head passes over the head of the humerus and attaches to the glenoid. The short head passes in front of the humerus and attaches to a bony protrusion, called the coracoid, on the shoulder blade.
- video clip: Calcific Tendinitis of the Shoulder (Degenerative Calcification)
PLAY VIDEOThis painful condition occurs when calcium deposits form in tendons of the rotator cuff. These tendons and surrounding tissues in the shoulder become inflamed. This condition typically affects adults.
- video clip: Frozen Shoulder (Adhesive Capsulitis)
PLAY VIDEOThis condition is a loss of motion or stiffness in the shoulder, usually accompanied by pain in the joint. Frozen shoulder is most common in people between the ages of 40 and 60, but can afflict anyone regardless of gender, arm preference or occupation.
- video clip: Glenoid Labrum Tears
PLAY VIDEOThis injury is a tear of the labrum, a thick band of cartilage that lines the rim of the glenoid (which is commonly called the shoulder socket). The labrum cushions the head of the humerus and holds it securely to the glenoid, stabilizing the joint.
- video clip: Hill-Sachs Lesion
PLAY VIDEOThis condition is a traumatic fracture of the humeral head that leaves an indentation in the bone. This changes the shape of the humeral head and can interfere with normal arm motion.
- video clip: Loose Shoulder (Multidirectional Instability)
PLAY VIDEOThis condition occurs when the tissue that forms a capsule around the shoulder joint stretches and can no longer effectively keep the ball of the humerus within the shoulder socket. Patients with loose shoulder may experience frequent shoulder dislocations.
- video clip: Rotator Cuff Injuries
PLAY VIDEOThe rotator cuff is a group of muscles and tendons that cover the head of the humerus and hold it in the shoulder socket. When rotator cuff tendons become damaged, the shoulder can become stiff, sore or lose mobility. Injuries are often caused by direct damage, such as a traumatic fall or repetitive overhead motions. It can also develop because of indirect causes such as impingement or shoulder imbalance.
- video clip: Shoulder Dislocations
PLAY VIDEOThis condition occurs when the head of the upper arm bone, the humerus, slips out of the socket formed by the scapula at the shoulder joint. Because the shoulder is not as stable as other joints, this injury is common.
- video clip: Shoulder Impingement Syndrome
PLAY VIDEOThis condition occurs when the tendons of the rotator cuff, along with the subacromial bursa, become compressed against a bony scapula protrusion called the acromion. As these tissues continually rub against bone, they become irritated and inflamed.
- video clip: Shoulder Separation
PLAY VIDEOThis condition is an injury to the joint at the top of the shoulder where the acromion meets the clavicle, called the acromioclavicular (or AC) joint. The ligaments that hold these bones together are partially or completely torn, allowing the bones to separate.
- video clip: SLAP Tear (Superior Labrum from Anterior to Posterior Tear)
PLAY VIDEOThis condition is a tear of the labrum in the shoulder joint. The labrum is a ring of cartilage around the shoulder socket that stabilizes the head of the humerus. A SLAP tear occurs at the point where the biceps tendon attaches to the labrum.
- video clip: Winged Scapula
PLAY VIDEOThis condition occurs when the muscle that moves the shoulder forward weakens and fails to hold the scapula, or shoulder blade, close against the back of the rib cage. This condition results in the scapula sticking outwards and upwards, particularly during physical activities such as pushing or lifting weights.