A shoulder separation is actually an injury involving the AC (acromioclavicular) joint. This joint is where the clavicle connects with the highest point of the shoulder blade (acromion).
Shoulder pain is a very common complaint and can occur in various forms. The shoulder is the body's most mobile joint, and problems can arise from overuse, injury or hypermobility.
A dislocated shoulder occurs when the upper arm bone pops fully or partially out of the cup-shaped glenoid socket. A dislocation can occur anteriorly, posteriorly, or even downward. Dislocations may occur partially, known as a subluxation.
A tear to any one of the muscles or tendons that secures the upper part of your humerus to the shoulder blade. The rotator cuff stabilizes the shoulder, but also allows the greatest range of motion of any joint.
A shoulder labral tear is an injury to the shoulder joint cartilage.
Adhesive capsulitis, commonly called frozen shoulder, is a condition in which the capsule surrounding the head of the humerus becomes inflamed and stiff, causing decreased range of motion.
Arthritis of the shoulder is a degenerative condition of the articular cartilage or outer covering of the bone and joint.