Shoulder Osteoarthritis - a diseasecharacterized by degenerative-dystrophic changes of articular cartilage and underlying bone, which leads to disruption of the shoulder joint function. Shoulder Osteoarthritis can develop at any age, but mainly it affects people older than 40 years, and more often than men, which is associated with age-related disorders of mineral metabolism, diseases of the circulatory system and excessive loads on the joints of the upper extremities. According to the statistics to 55 years for each person can find signs of osteoarthritis, and the incidence of osteoarthritis of the shoulder joint is quite high.
Causes of shoulder osteoarthritis lie in a combination of two factors.
- Excessive load on the articular joint.
- Congenital or acquired defects of the articular cartilage that arise on the background of decreased metabolism of cartilage.
A significant role in the etiology of the disease played by heredity, it is proved that the probability of occurrence of osteoarthritis shoulder in children whose parents suffered from this disease, much higher.
The causes of osteoarthritis of the shoulder joint are covered in the following factors:
- acute injuries of the shoulder joint;
- microtraumas chronic articular cartilagerepetitive movements, such as the athletes, throwers, painters, plasterers occurrence of shoulder osteoarthritis is related to professional activities;
- congenital malformation of the shoulder joint, in which even the usual load becomes excessive for articular cartilage and can lead to its destruction;
- arthritis of various etiologies;
- metabolic disorders, accompanied by the deposition of salts in the joint cavity, and lead to the development of osteoarthritis of joints and shoulder area.
The development of the glenohumeral joint osteoarthritis passesin several stages. Onset of the disease can go unnoticed, especially if it is associated with the occurrence of metabolic disorders in the cartilage or the deposition of salts. When symptoms of post-traumatic osteoarthritis cartilage degeneration occur in the early stages of disease, but it is often mistaken for the effects of trauma.
On the 1st stage deforming arthrosis of any joint,shoulder joint in particular is manifested by pain in the affected area. Because the shoulder joint is among the most moving and loading, the early appearance of pain is quite predictable. Painful sensations are insignificant, are aching in nature, occur after exercise, but gradually fade away after a long rest, and often associated with fatigue. In the morning there is some stiffness in the joint, requiring the patient a little warm-up.
Radiographic signs of stage 1, arthrosis of the shoulder joint is the presence of "a symptom of the ring", reflecting the accumulation of salts and the formation of osteophytes on the circumference of the glenoid cavity.
The second stage arthrosis of the shoulder joint, as in osteoarthritisGenerally, characterized enhancement of pain. Pain in the shoulder becomes permanent, it increases with movement. In the area of the joint arthrosis appears typical crunch caused by the roughness of the articular cartilage, the presence of the joint cavity of small fragments of cartilage and destroyed the wreckage of osteophytes. The amount of movement in the joint is limited. Patients have difficulty in performing simple movements of diverting arms back and lifting them up.
On radiographs noticeable narrowing of the joint space, the presence of bony growths on the edge of the glenoid cavity and humeral head, the seal in the subchondral bone area.
The third stage arthrosis of the shoulder joint is characterized by deformationjoints and constant severe pain that occurs even when shaking his hand. Movement sharply limited. The patient's hand is completely excluded from the movements and takes a forced situation, bringing relief.
X-ray at this stage has been a sharp narrowing of the joint space, the presence of large osteophytes deforming joint, and bone cysts forming joint.