Rotator Cuff Injury
The rotator cuff is located on the top of the humerus bone and consist or four muscles and multiple tendons which help to raise the arm and rotate the shoulder. The most common injury to the rotator cuff is tearing which can happen from overuse of the muscles, other shoulder and arm related injuries caused by trauma and ongoing shoulder pain.
Rotator Cuff Tendonitis
Rotator cuff tendonitis is characterized by the swelling, inflammation and irritation of the one or various tendons that make up the rotator cuff. This can be caused by motions that lift the arm over the head repetitively. This condition must be treated right away as it can lead to tearing in the rotator cuff.
Shoulder Impingement Syndrome
Shoulder Impingement Syndrome occurs due to the shoulder blade placing pressure and stress on the rotator cuff when raising the arm over the head.
Shoulder pain can occur from bursitis which is an inflamed bursa in the shoulder. This bursa allows joint function in the shoulder to run smoothly without causing any friction in the area.
Muscle strains in the shoulder are when the muscles are over stretched, loosened or torn. The severity of the strain will depend on one of those three characteristics with torn muscles being the most severe. Muscle strains in the shoulder can occur from misalignment of the body, overuse or a trauma to the area.
Arthritis of the shoulder can occur in one of the two shoulder joints; the acromioclavicular joint or the glenohumeral joint. The latter is also known as the scapulothoracic joint. Common types of arthritis that plague these shoulder joints are posttraumatic arthritis, osteoarthritis and rheumatoid arthritis.
Frozen shoulder is when there is a stiffness in the shoulder which causes the loss of motion and pain. This is an uncommon shoulder condition and there are no clear causes to why people suffer from frozen shoulder.
The shoulder can either be partly dislocated where the humerus is half way out of the joint socket or completely dislocated, meaning that the humerus has come completely out of the socket. The dislocation of the shoulder is painful and causes weakness in the joint.
Shoulder separation occurs in the acromioclavicular joint (AC Joint) where the ligaments that protect the joint are separated from the wing bone and the collarbone. The injury varies in terms of severity from mildly painful to excruciating with signs of deformity.
Calcific tendonitis is when calcium deposits are formed in the tendons that make up the rotator cuff. Since the deposits are small they can go away by themselves and do not necessarily cause a lot of pain, although at times Calcific Tendonitis can be painful.