Weightlifter’s shoulder (Distal Clavicular Osteolysis)
Weightlifter’s shoulder is a painful deterioration of the distal end of the clavicle (collar bone). It is an overuse phenomenon that causes tiny fractures along the end of the clavicle . A breakdown of the bone (osteolysis) occurs.
Snapping Scapula Syndrome
The scapulothoracic joint scapulothoracic joint is located where is located where the shoulder blade (also called the scapula) glides along the chest wall (the thorax). When the movement of this joint causes feelings or sounds of grating, grinding, popping, or thumping, doctors call it snapping scapula syndrome.
A labral tear can cause pain and a catching sensation in the shoulder. Labral tears can be very difficult to diagnose.
Acromioclavicular Joint Separation
A shoulder separation is a fairly common injury, especially in certain sports. Most shoulder separations are actually injuries to the acromioclavicular (AC) joint. The AC joint is the connection between the scapula (shoulder blade) and the clavicle (collarbone). Shoulder dislocations and AC joint separations are often mistaken for each other. But they are very different injuries.
Adhesive capsulitis, also called frozen shoulder, is a painful condition. It results in a severe loss of motion in the shoulder. It may follow an injury, or it may arise gradually with no injury or warning.
Many people refer to any pain in the shoulder as bursitis. The term bursitis really only means that the part of the shoulder called the bursa is inflamed. Tendonitis is when a tendon gets inflamed. This can be another source of pain in the shoulder. Many different problems can cause inflammation of the bursa or tendons. Impingement syndrome is one of those problems. Impingement syndrome occurs when the rotator cuff tendons rub against the roof of the shoulder, the acromion.
Rotator Cuff Tears
The rotator cuff tendons are key to the healthy functioning of the shoulder. They are subject to a lot of wear and tear, or degeneration, as we use our arms. Tearing of the rotator cuff tendons is an especially painful injury. A torn rotator cuff creates a very weak shoulder. Most of the time patients with torn rotator cuffs are in late middle age. But rotator cuffs tears can happen at any age.
Shoulder instability means that the shoulder joint is too loose and is able to slide around too much in the socket. In some cases, the unstable shoulder actually slips out of the socket. If the shoulder slips completely out of the socket, it has become dislocated. If not treated, instability can lead to arthritis of the shoulder joint.