Although shoulder joint replacement is less common than knee or hip replacement, it is just as successful in relieving joint pain.
If nonsurgical treatments like medications and activity changes are no longer helpful for relieving pain, you may want to consider shoulder joint replacement surgery. Joint replacement surgery is a safe and effective procedure to relieve pain and help you resume everyday activities.
Whether you have just begun exploring treatment options or have already decided to have shoulder joint replacement surgery, this article will help you understand more about this valuable procedure.
Your shoulder is made up of three bones: your upper arm bone (humerus), your shoulder blade (scapula), and your collarbone (clavicle). The shoulder is a ball-and-socket joint: The ball, or head, of your upper arm bone fits into a shallow socket in your shoulder blade. This socket is called the glenoid.
The surfaces of the bones where they touch are covered with articular cartilage, a smooth substance that protects the bones and enables them to move easily. A thin, smooth tissue called synovial membrane covers all remaining surfaces inside the shoulder joint. In a healthy shoulder, this membrane makes a small amount of fluid that lubricates the cartilage and eliminates almost any friction in your shoulder.
The muscles and tendons that surround the shoulder provide stability and support.
All of these structures allow the shoulder to rotate through a greater range of motion than any other joint in the body.
Several conditions can cause shoulder pain and disability, and lead patients to consider shoulder joint replacement surgery.
1. Osteoarthritis (Degenerative Joint Disease) Osteoarthritis is an age-related wear-and-tear type of arthritis. It usually occurs in people 50 years of age and older, but may occur in younger people, too. The cartilage that cushions the bones of the shoulder softens and wears away. The bones then rub against one another. Over time, the shoulder joint slowly becomes stiff and painful. Unfortunately, there is no way to prevent the development of osteoarthritis. It is a common reason people have shoulder replacement surgery.
2. Rheumatoid Arthritis This is a disease in which the synovial membrane that surrounds the joint becomes inflamed and thickened. This chronic inflammation can damage the cartilage and eventually cause cartilage loss, pain, and stiffness. Rheumatoid arthritis is the most common form of a group of disorders termed inflammatory arthritis.
3. Failed Previous Shoulder Replacement Surgery Although uncommon, some shoulder replacements fail, most often because of implant loosening, wear, infection, and dislocation. When this occurs, a second joint replacement surgery — called a revision surgery — may be necessary.
The decision to have shoulder replacement surgery should be a cooperative one between you, your family, your family physician, and your orthopaedic surgeon.
There are several reasons why your doctor may recommend shoulder replacement surgery. People who benefit from surgery often have:
1. Severe shoulder pain that interferes with everyday activities, such as reaching into a cabinet, dressing, toileting, and washing.
2. Moderate to severe pain while resting. This pain may be severe enough to prevent a good night's sleep.
3. Loss of motion and/or weakness in the shoulder.
4. Failure to substantially improve with other treatments such as anti-inflammatory medications, cortisone injections, and/or physical therapy.
