Total Elbow Replacement
Total Elbow Replacement
The surfaces of the bones where they meet to form the elbow joint 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 elbow joint. In a healthy elbow, this membrane makes a small amount of fluid that lubricates the cartilage and eliminates almost any friction as you bend and rotate your arm.Muscles, ligaments, and tendons hold the elbow joint together.
The Elbow is a hinge joint which is made up of three bones:
- The humerus (upper arm bone)
- The ulna (forearm bone on the pinky finger side)
- The radius (forearm bone on the thumb side)
Elbow Replacement Surgery
In total elbow replacement surgery, the damaged parts of the humerus and ulna are replaced with artificial components. The artificial elbow joint is made up of a metal and plastic hinge with two metal stems. The stems fit inside the hollow part of the bone called the canal.
There are different types of elbow replacements, and components come in different sizes. There are also partial elbow replacements, which may be used in very specific situations. A discussion with your doctor will help to determine what type of elbow replacement is best for you.
Causes of Elbow Replacement
Severe Fractures:
A severe fracture of one or more bones that make up the elbow is another common reason people have elbow replacements. If the elbow is shattered, it may be very difficult for a doctor to put the pieces of bone back in place. In addition, the blood supply to the bone pieces can be interrupted. In this type of case, a surgeon may recommend an elbow replacement. Older patients with osteoporosis (fragile bone) are most at risk for severe elbow fractures.In addition, some fractures do not heal well and may require an elbow replacement to address continuing problems.
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.”
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 elbow softens and wears away. The bones then rub against one another. Over time, the elbow joint becomes stiff and painful.
Post-traumatic Arthritis:
This type of arthritis can follow a serious elbow injury. Fractures of the bones that make up the elbow, or tears of the surrounding tendons and ligaments may cause damage to the articular cartilage over time. This causes pain and limits elbow function.
Instability:
Instability occurs when the ligaments that hold the elbow joint together are damaged and do not work well. The elbow is prone to dislocation. Chronic instability is most often caused by an injury.
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