This creates roughness and catching in the shoulder joint and, when severe, can progress to the point where there is “bone-on-bone” rubbing. This occurs when the cartilage has worn sufficiently on both the humerus (ball) side and glenoid (socket) side such that bone is exposed on both sides of the shoulder joint. This condition can cause significant roughness in the shoulder, also known as shoulder crepitus. It also can cause significant shoulder pain and shoulder stiffness. Biologic and chemical changes within the joint due to osteoarthritis and some degenerative conditions are non-reversible. The orthopedic shoulder specialists at The Shoulder Clinic of Idaho offer patients in Boise, Meridian, Nampa, and the surrounding communities of the Treasure Valley joint preservation treatments as an alternative to shoulder replacement surgery. Joint preservation and cartilage restoration procedures allow patients to return to activities more quickly.
What is arthritis in the shoulder?
In the state of Idaho, the Center for Disease Control has reported that one-in-four women and one-in-five men will have arthritis in their lifetime. Arthritis in the shoulder is a degenerative condition of the joints, creating pain, swelling and limited movement. There are two joints that may be affected by arthritis in the shoulder. One joint is located where the clavicle meets the tip of the acromion (shoulder blade) and is called the AC joint. The second shoulder joint susceptible to arthritis is called the glenohumeral joint, where the head of the humerus (arm bone) fits into the glenoid (socket) of the scapula (shoulder blade). To provide patients with effective treatment, the orthopedic shoulder specialists at The Shoulder Clinic of Idaho will need to determine which joint is affected, what type of arthritis has developed, and what other degenerative conditions of the shoulder may be contributing to a patient’s loss of shoulder comfort and function.
What kinds of arthritis are found in the shoulder?
Osteoarthritis is notably one of the most debilitating forms of arthritis and is characterized by the deterioration of articular cartilage accompanied by changes in the bone and soft tissue of the joint. Articular cartilage functions to absorb shock and reduce friction during movement. As the cartilage wears away, it becomes frayed and rough, and the protective space that exists between the bones and joint surfaces decreases. During movement, the bones of the shoulder joint may rub against each other causing pain, popping, and a sense of shoulder roughness.
Post-traumatic arthritis is another form of shoulder arthritis caused by an injury or dislocation. Shoulder injuries are common, due to the joint’s inherent instability. Injuries such as shoulder dislocations, shoulder separations or shoulder fractures can lead to post-traumatic arthritis in the shoulder.
Rheumatoid arthritis is an autoimmune condition that affects the joint lining and can cause joint swelling. Over time, Rheumatoid arthritis can cause the erosion of the bones in the shoulder, causing deformity of the shoulder joints. This type of arthritis is an inflammatory arthritis and may present differently that the typical degenerative arthritis or osteoarthritis which is most common.